Intelligent Building System vs Hacker

Originally Posted by si_sol
Kalaupun pakai kontrol lain (sms, network based, smart card based, dll), secara hacker's point of view tetap ada peluang rumah itu dikontrol oleh maling dari luar. Sepertinya lebih aman yang kombinasi, ada anjingnya, ada pintu biasa, ada bagian yang automatedHacker itu universal bro, nggak cuma sebatas di dunia komputer.

OK, mohon izinkan saya menjelaskan ya,....

SMS…digunakan untuk perintah sesuai dengan yang diprogram pada system…contoh, koneksi ke system via sms harus pakai password dan nomer telepon yang bisa memasukkan password harus sesuai dengn yang ada pada database, lalu perintah yang dimasukkan harus tersedia pula pada system.

Jadi ilustrasinya begini, pada system saya program kalau nomer HP 0811606822 mengirimkan pesan “SISOL ON” dengan password 101823990 maka system harus menyalakan lampu taman misalnya….habis itu saya yang membawa HP dengan nomer tersebut melancong ke Oregon US dan dari sana mengirim sms dengan berita "SISOL ON" ke system maka menyalalah si lampu taman itu khan??!!……jadi disini dapat dilihat system tidak akan meladeni koneksi dari nomer yang tidak ada di data base dan tidak juga meladeni perintah yang tidak terdata dll …so utk tingkat security disini rasanya sudah sangat hebat, pertama anda tdk mungkin make nomer lain untuk melakukan koneksi ke system (kecuali dapat melewati secure switching system connection operator telekomunikasi terlebih dahulu)……,

2, anda harus mengetahui passwordnya,

3 anda juga harus mengetahui isi perintahnya bukan??...

Network base,……boleh saya katakan bahwa Intelligent Building system yang saya bahas disini tidak memerlukan network. Intelligent Building adalah suatu konsep Integrasi seluruh devices (actuator & sensor) yang memiliki IP address sendiri utk mengkontrol seluruh fasilitas gedung agar menjadi satu kesatuan system. Oleh karena itu semua devices (actuator & sensor) dapat diprogram sesuai keinginan dan kebutuhan karena komunikasi antar devices terbentuk......maka prinsip2 ,on-of/buka-tutup-stop, redup-terang, panas dingin, keras-lembut dan lain2 itu adalah tugas actuator yang mengesekusi dari sensor yang menerima data2…….misal salah satu bola lampu ngga nyala atau putus ,seketika itu pula mengirimkan sms ,atau menyalakan indicator lamp diruang operator atau apapun yg bisa anda pikirkan.......................(coba anda perhatikan gambar anjing diatas) itu maksudnya apabila apapun inputnya yang dirasakan oleh sensor2 maka outputnya bisa diprogram sesuai kebutuhan dan kehendak. Oh ya,…utk dapat berkomunikasi dengn devices dimaksud harus dengan gateway khusus serta menjalankan software yang khusus pula…dan semua devices2 tersebut harus didownload dengan program yang disesuaikan.

Smart card base???, hm…kayaknya saya sudah pernah mengulas hal ini….,nanti saya cari dan posting disini…tetapi boleh saya jelaskan bahwa …smart card termasuk kategori sensor yang berisi data2 pribadi seseorang (bisa proximity maupun swipe) ……..jadi kalo mau digunakan sebagai pendukung aplikasi Intelligent Building system, just fine !! tinggal anda katakan apabila terdeteksi smart card tertentu….outputnya mau diapain…..!!

Jadi kesimpulannya, secara Intelligent Building system programmer point of view….,hacker sulit sekali untuk dapat menembus dan masuk kesistem, apalagi bisa mengontrolnya…(supaya menarik…coba anda ilustrasikan apa dan bagaimana hacker bertindak dan saya pastikan penangkalnya sudah tersedia) Kebetulan saya juga pernah belajar hacking, phreakin & carding tapi yang white bro n bisa mensiasati beberapa hal tertentu,…….tetapi ketika saya dibanned di salah satu website,….malah sampe nanar gue mo masuk kesono..hehehehehehe!! emang anda bisa Bantu bro??!! trims

Wireless Power Transmission

[QUOTE=Foo;519724]
Di mainset q om, teknologi smart : harus dapat menciptakan kenyaman,keamanan,keselamatan,akrab lingkungan,kemudahan dan efisiensi ada satu hal yang kurang menurut q yaitu fleksibelitas. Sebagai sample adalah teknologi kartu pintar, dinamakan smart coz semua kalangan dan semua kegiatan (parkir,belanja,kartu id,gaji karyawan,telepon,kartu masuk,kunci,dll) /dalam 1 kartu multi aplication, dengan kartu ini dapat ditangani, karena berbentuk uang digital & data digital.dari sisi keamanan sangat-sangat baik enkripsi & MAC,dll high secure dech, dari sisi kenyamanan sangat nyaman & mudah dibawa. Klo gitu2 sih teknologi canggih saja.
Kalau Smart Electic mainset q: listrik 500 KV,150 KV, 20 KV, 380 V/220V yang ada di gardu di distribusikan tanpa kabel alias wireless (5 Volt klo gx salah). . sy seh lage berimajinasi.
So ke aplikasi saja
Klo Smart home...?????. dan kawinkan dengan smart electric semua peralatan yang memakai listrik didalam rumah nya tidak pakai kabel (via udara).
[/QUOTE]

Foo,
yang anda katakan tentang menciptakan kenyaman,keamanan,keselamatan,akrab lingkungan,kemudahan dan efisiensi serta fleksibelitas memang sudah merupakan konsep terbentuknya Intelligent Building dan bahkan ditambah satu lagi yaitu kemudahan.......seperti gampang dipakai, disetting, di program dan lain sebagainya seperti yang selalu saya sampaikan dimana-mana.

Berbicara tentang smart card yang sudah sejak belasan tahun silam diterapkan di negara tetangga Singapore & Malaysia dan lain lain, tentu andapun paham bahwa sistem ini memerlukan infra struktur yang kuat lengkap dan teratur disegala sektor baik swasta maupun pemerintah (e-government) yang handal...tetapi saya kurang tertarik membahas hal tersebut.

Smart Electric,kalo anda memahami tentang teori elektrikal maka anda mestinya tahu bahwa bintang utamanya adalah sang elektron, partikel terkecil setelah quark dari atom....cara men generate electrical powerpun sudah pernah saya sampaikan dibeberapa forum yaitu dengan cara :

1. Voltage by friction (listrik statis)
2. Voltage by pressure (piezo electric)
3. Voltage by heat (thermo couple)
4. Voltage by light (Solar cell)
5. Voltage by Chemical action (battery)
6. Voltage by Magnetism (Generator set)

dan untuk menyalurkan ('menghembuskan') elektron-elektron agar dapat berfungsi sebagai
enerji listrik diperlukan kekuatan dalam satuan Volt melalui 'pipa' (penghantar)...sehingga semakin besar 'tenaga hembusannya' semakin besar dan cepat kapasitas yang dapat disupply....oleh karena itu imajinasi anda tentang (listrik 500 KV,150 KV, 20 KV, 380 V/220V yang ada di gardu di distribusikan tanpa kabel alias wireless (5 Volt klo gx salah). . adalah keliru!!) , sebab dengan tegangan (baca daya hembus elektron) 5volt, berapa sih kapasitas arus yang bisa diharapkan ?? ingat (P=VxI).

Penjelasannya sbb :
Mungkin karena sudah terlalu banyaknya peralatan rumah tangga dan kantor yang mengandalkan arus listrik membuat orang merasa ribet dengan kabel2 bak benang kusut sehingga muncul ide wireless power transmission (low consumtion power).

Sebenarnya ini bukanlah wacana baru krn pd akhir tahun 1800an Nicola Tesla sdh mengusung teori ini dan pada awal 1900an telah sukses menghidupkan lampu secara wireless di markas experimentnya di Colorado Springs. Meskipun hasil kerja Tesla mengesankan banyak orang tetapi tidak serta merta membuat metode transmisi enerji listrik tanpa kabel itu gampang dilaksanakan.

Dan sejak saat itu pula para ilmuwan terus mengembangkan penemuan2 baru yg berkaitan dengan hal tersebut. Ada yang hanya berupa teori maupun prototype saja, tetapi beberapa diantaranya sudah eksis dan bahkan telah kita gunakan...tengok saja wireles transmission yang sudah sangat umum kita kenal spt misalnya gelombang radio yg kita pakai untuk telefon sellular,TV ,wi-fi dan radio FM/AM dan lain lain. Radio wave menyebar kesegala arah, itu sebabnya kita harus menggunakan antena dan tuning pada gelombang frekuensi yang sama (berfungsi sebagai 'pipa' saluran utk enerji) agar bisa menangkap (receive) muatan yang dikirim oleh transmitter.

Sikat gigi elektrik sebenarnya sudah memakai methode ini dalam aplikasinya. Ide ini sebenarnya digunakan untuk menghindarkan bahaya tersengat arus pendek bagi pemakai karena alat ini digunakan bersama air....oleh krn itu teknik penerimaan enerji listriknya memakai methode wireless dengan perangkat yang disebut inductive coupling (2 kumparan induksi) yang dipasang di charger base dan satunya lagi di pasang di gagang sikat gigi dan tersambung ke batterynya.....masih ingat prinsip kerja transformer?? (primary winding yang menerima input tegangan mengindusir secondary winding sehingga mendapatkan tegangan output), methode induksi seperti ini memang hanya berjarak centimeteran. Medan lebih besar yang kuat & dapat menginduksi dari jarak lebih jauh memang bisa dilakukan ,tetapi pasti sangat tidak efisien lagi sebab medan magnetik khan menyebar ke segala arah.

Peralatan listrik rumah tangga & kantor umumnya relatif kecil, sehingga arus yg dibutuhkan utk merecharge atau power up perangkat2 itu tdk memerlukan enerji yang besar sehingga wireless power untuk itu dapat dilakukan dan sudah diproduksi.
Akan tetapi methode penyaluran tenaga listrik tegangan tinggi dari pembangkit sampai keperkotaan dan kampung2 mungkin hanya akan menimbulkan bahaya dan biaya yang sangat besar.

Hal menarik dilaporkan bahwa para peneliti di MIT pd 2006 telah menemukan cara effisien untuk mentransfer tenaga listrik pada dua kumparan yang terpisah beberapa meter. Marin Soljacic komandan timnya mengatakan mereka dapat menambah jarak itu dengan teori menambahkan & menyamakan resonansi pada inductive coupling tsb. (resonansi adalah keadaan dimana suatu benda dibuat bergetar), mrk mengindikasikasikan bahwa induksi akan sedikit berbeda jika medan elektromagnetik pada kumparan beresonansi pada frekuensi yg sama.

it's make sense, karena apabila satu benda dengan jarak tertentu dapat menggetarkan benda yang lain ..ini berarti diantara mereka ada 'pipa saluran enerji' atau penghantar yang memungkinkan koneksi terjadi....hm,jadi teringat jurus sakti Auman singa yang dapat mencampakkan apapun di film2 silat itu, di myth buster juga pernah ditayangkan tentang gunung es yang diruntuhkan oleh lengkingan penyanyi soprano, gelas yang pecah oleh pekikan serta dentuman bass yang menggetarkan jantung dan melambaikan rambut kita.

Teori mereka menggunakan kumparan induktor yang berbentuk lingkaran putus yang dimasing2 ujungnya diberikan plat kapasitan yang menampung muatan elektron. Jadi ketika kumparan itu dilalui arus maka resonansi terjadi....frekuensi resonansinya adalah hasil dari induktansi dari kumparan dan kapasitansi dari plat di ujungnya. Sama seperti sikat gigi elektris diatas bedanya induksi disini disalurkan melalui 'pipa enerji' yang terjadi karena mereka berada pada frekuensi resonansi yg sama.
Teori listrik nirkabel yang lainpun sudah mulai dikembangkan seperti dari ruang angkasa ke bumi dgn menggunakan satelit....dan ini mungkin saja terjadi, akan tetapi teori pembangkit enerji listrik sejauh ini masih terbatas pada 6 konsep yang saya uraikan diatas...smoga suatu hari nanti departemen sains & teknologi indonesia bisa menyumbangkan sesuatu yang berarti serta membanggakan kita semua , (ada ngga sich Science & Technya Republik ini??!) kalo ada ,kiprahnya koq sepi2 aja??!! entahlah ,mungkin memperkaya diri (baca korupsi) lebih diutamakan mereka.

Pada kesempatan lain ,saya akan menyambung pembahasan ttg ini...trims.

My simple explaination on Intelligent Building System

Ow, Have those Building that built in Medan or Jakarta, BNI Tower been in the category of IB or not??? The Round Building of the Great Attorney and The Special Cyber Crime Police Building got to be applying this IB system yes??
I know it from its pictures [/ Quote]

Bang Jay,

In fact the concept of Smart system has been known since 70’s era and at that time most of the automation system was applied in factories. Talking about the Intelligent Building system then we should go on to a discussion about the concept of utilizing the rapid development of technologies that we can apply to the Skyscraper Buildings, Commercials, Public facilities, Residential etc. for comfort, safety, security, convenience or simplicity and efficiency.

The keyword of:

• Comfort
• Safety
• Security
• Convenience and
• Efficiency

are being the measurements of how Intelligence the Building is and this can usually be achieved when the entire system being integrated in such a manner so that it become a large sophisticated system. The Intelligent Building systems that meet all categories of the keyword mention above is perhaps not available yet in Indonesia.

Here is the simple illustration about it and you may give me feedback in case you find anything is inappropriate..:

• For Conveniences normally a Building provides the good lighting system, air conditioning system, plumbing system, sound system etc. which are designed and installed in such a way so that all people will be happy & feel at home being inside. However, isn’t that wasteful if in unoccupied rooms those entire facilities keep functioning as well as the lights that keep turned on even though it has brighten by the sunlight? The solutions for this inefficiency could only be overcome with IB system by installing the presence detector, light sensor and window or door sensor.


• For maintaining the security for both occupants and the valuables, the security system must be designed in such a way starting from the access gate to every entrance & exit doors so that anyone passing through gate and any doors is continuously recorded without having to be disturbed by officials inspection that sometimes exasperate and time consuming. In the IB system, each of the vehicles got an ID that within the distance of communication; system will automatically provides access and register it. All valuables got IDs so any attempt of sabotage or destruction of any equipment can be immediately noticed. Everyone in this Building has their own Security Access Level; it can be useful for limiting access at each door so that the same door is impassable under certain conditions or at a particular time.


• For maintaining the safety of a building with its contents and the occupants, all hazardous prevention system should be designed and installed in such a way for the terrorist threats, natural disasters, fire danger etc. By Implementing of the IB system, all of required sensors for the early warning system are installed & programmed accordingly with its function needs so that any arising threat of danger would be immediately noticed, anticipated and automatically prevented by the system as well as it links to all related parties or agencies via IT to perform the information of the situation and for remote monitoring purpose.


• If those mentioned points above using the stand alone system then the result will never be really convenience & sometimes very troublesome. It will be less comfort or even annoying and take pains when you have to do this & that for some simple jobs such as having a meeting for example. With the stand alone system one should go here and there to set up everything in a meeting room, starting from say closing the vertical blind, dimming the lights, turning the air conditioning and OHP on etc. Using the IB system all sequences will be performed automatically simply by a click of a button and the rest all what you do is just conducting a good meeting. Ease of managing the Security & Safety system for comfort & conveniences as well as for efficiency is the bottom line of why IB system is crucial.


• Efficiency is a ‘breath’ for IB system indeed. Efficiency tends to be proportionally reversed with all of components in that keyword if its system not being integrated or can not be integrated so that the more time consuming, more energy wasted and more inefficiency costs will arise. Thus the substance of IB system as I described here is the solution to overcome those matter. As I always say that in creating something, same thing happen with that to design IB system, the only limitation of creating the most sophisticated system is on our imagination’s boundary.
  

That is why in answering to the questions of you brother Jay, BNI tower, Round Building & The Special Cyber Crime Police Building (BARESKRIM) haven’t been in the category of Intelligent Building system yet, at least for me.

Herewith is my opinion about it;

Comfort aspect may be OK, but which of the government office building has consider the efficiency?Its safety systems can be predicted as they install the trivial type because what important is merely to meet the standard requirements for purely administrative.

In the case of Conveniences & efficiency, I don’t think so because that would be too luxurious for those buildings.

Its security system got to be lousy.

So my conclusion is, the perfect principle concept of IB as caliber as Pentagon, White House or Palace of Bill Gates still have not existed in our country except those Buildings with ‘IB’ system that adopt one or two of the keywords, such as in the category for Convenience only or for the comfortable only that may already spread in many large cities such as Jakarta, Surabaya & Medan and it mostly still at a low level and relatively very simple standard.

For the category of Security & Comfort system, even thought sometimes it equipped with sophisticated equipment, such system mostly is stand alone system so that the benefit of function can not be obtained optimally.

Thank you for your time.

[QUOTE=Jay-ME;518180]Ow.... yang dah di bangun di Medan ? Or Jakarta..? BNI tower dah masuk kategori IB belon ?
Seharusnya Gedung Bundarnya Kejaksaan dan gedung khusus Cyber Crimenya Breskrim Polri sdh menerapkan prinsip2 IB ya...

Kayaknya gw kenal dari pictnya neh.... [/QUOTE]

Bang Jay,
Sebenarnya konsep Smart sdh dikenal sejak tahun 70an dan ketika itu otomatisasi lebih banyak diterapkan di pabrik2...

Berbicara tentang Intelligent Building system maka sesungguhnya kita masuk pada pembahasan tentang suatu konsep yang memanfaatkan kemajuan tehnologi yang sgt pesat itu utk diaplikasikan pada Gedung2 pencakar langit, fasilitas umum terpadu,residensial dll agar bisa memberikan kenyamanan, keamanan dan keselamatan serta kemudahan2 maupun effisiensi.

Kata kuncinya adalah :

• Kenyamanan
• Keamanan
• Keselamatan
• Kemudahan dan
• effissiensi
  

itulah yg menjadi tolok ukur Intellijensia suatu bangunan Gedung, fasilitas umum, Kantor pemerintahan dan rumah tinggal....dan biasanya hal ini bisa tercapai apabila seluruh system yang dipakai dapat diintegrasikan sehingga menjadi suatu sistem besar yang terpadu.

Untuk Intelligent Building system yg memenuhi kategori seluruh kata kunci diatas barangkali belum ada di Indonesia......
Berikut ini ilustrasinya & silahkan beri masukan atas penjabaran singkat ini;

• Utk mendapatkan kenyamanan maka sistem penerangan, sistem pendingin udara, sistem plumbing, sistem tata suara dll dirancang sedemikian rupa sehingga semua orang menjadi betah dan senang berada didalamnya. Tetapi bukankah pemborosan jika diruangan yg tdk berpenghunipun semua fasilitas maupun lampu tetap nyala padahal ruangan itu mendapatkan cahaya matahari? Solusi atas ineffisiensi tsb dpt diatasi dgn IB system dgn cara memasang presence detector & light sensor maupun door or window status sensor.


• Utk menjaga keamanan baik bagi penghuni maupun benda2 berharga didalamnya sistem sekuriti harus dirancang sedemikian rupa yang dimulai dari akses pintu gerbang sampai pd seluruh pintu masuk ruangan sehingga siapapun yg melewati gerbang dan pintu2 manapun terdata secara online tanpa hrs direpotkan oleh pemeriksaan petugas yg kadang menjengkelkan serta menyita banyak waktu. Pada IB system, setiap kenderaan penghuni memiliki ID sehingga begitu berada pd jarak komunilkasi system secara otomatis memberikan akses dan mendatanya. Seluruh benda2 yg bernilai tinggi memiliki ID pula agar upaya pencurian ataupun pengrusakan dpt segera termonitor..Setiap orang memiliki Access Security Level masing2 yg berguna utk membatasi akses pd setiap pintu sehingga pintu yg sama tdk dpt dilalui pd kondisi & waktu tertentu.


• Utk menjaga Keselamatan bagi gedung, isi dan penghuninya, seluruh sistem pencegah bahaya dirancang sedemikian rupa baik terhadap ancaman terroris, bencana alam ,kebakaran dll. Dgn menerapkan IB system seluruh sensor yg dibutuhkan utk pemberitahuan awal (early warning system) dipasang & diprogram sesuai peruntukkannya sehingga apapun ancaman bahaya yg timbul dpt segera diketahui, diantisipasi dan dicegah sedemikian rupa secara otomatis oleh system IB serta terhubung ke seluruh instansi yg terkait via TI.


• Seluruh poin2 diatas apabila memakai stand alone system ,maka yang terjadi adalah kerepotan yg sangat njelimet. Kurang Kenyamanan (malah tdk nyaman) kalo harus bersusah payah hrs melakukan ini dan itu utk mendapatkannya....contoh sederhana bila menggunakan IB system ,saat ingin melakukan rapat di meeting room, anda tdk perlu kesana kemari mensetting temperatur ruangan, menutup vertical Blind, mematikan lampu, menyalakan OHD dll....tetapi dgn sgt sederhana sekali pencet seluruh sekuens perintah tersebut dilakukan oleh system secara otomatis. Kemudahan dlm mengelola sistem Keamanan & Keselamatan serta


• Effisiensi merupakan nafas IB sesungguhnya......Effisiensi cendrung berbanding terbalik dgn seluruh komponen kata kunci tersebut apabila systemnya tak bisa diintegrasi ataupun tidak diintegrasikan sehingga Waktu, Enerji dan Biaya menjadi ineffisien. ....Demikianlah substansi IB system yg dpt sy gambarkan secara singkat & sederhana, seperti yg selalu sy katakan bahwa dalam menciptakan suatu karya ...sama seperti merancang IB system...Hanya limitasi imajinasi kita yg membatasinya.
  

Oleh krn itu ,jawaban atas pertanyaan bang Jay yg menanyakan ttg BNI tower, Gdg Bundar & Bareskrim adalah belon termasuk kategori Intelligent Building.

• Segi Kenyamanan mungkin OK, tetapi gdg Pemerintah yg mana ada memperhatikan effisiensi??
• Sistem Keamananannyapun pasti bolong2,
• Sistem Keselamatannya jg pasti standard saja & mungkin banyak yg kurang atau dikurangi krn yg terpenting bg mereka asal cukup utk memenuhi persyaratan administrasi belaka.
• Kemudahan & effisiensi?? hm, hal ini mungkin terlalu mewah bagi gedung yg anda sebutkan itu.

Jadi kesimpulannya, prinsip IB yg sempurna sekaliber Pentagon, white House atau Istana Bill Gates belum exist dinegara kita kecuali konsep IB utk salah satu atau dua kategori seperti konsep utk Kemudahan aja atau utk kenyamanan aja yg mungkin sdh banyak tersebar dikota-kota besar seperti Jakarta, Surabaya & Medan walaupun masih pd tingkatan yg relatif sgt sederhana.

Utk kategori Keamanan & kenyamanan yg meskipun dilengkapi peralatan canggih, sistem seperti ini kebanyakan berdiri sendiri (Stand alone system) sehingga fungsi dan manfaatnya tdk bisa optimal.
terima kasih.

The Story of Intelligent Building

Intelligent buildings design and building management systems

Overview of 'intelligent buildings' and 'intelligent homes' technologiesThe field of Intelligent Buildings, Intelligent Homes, Building Management Systems (BMS) encompasses an enormous variety of technologies, across commercial, industrial, institutional and domestic buildings, including energy management systems and building controls. The function of Building Management Systems is central to 'Intelligent Buildings' concepts; its purpose is to control, monitor and optimise building services, eg., lighting; heating; security, CCTV and alarm systems; access control; audio-visual and entertainment systems; ventilation, filtration and climate control, etc.; even time & attendance control and reporting (notably staff movement and availability). The potential within these concepts and the surrounding technology is vast, and our lives are changing from the effects of Intelligent Buildings developments on our living and working environments. The impact on facilities planning and facilities management is also potentially immense.

Any facilities managers considering premises development or site relocation should also consider the opportunities presented by Intelligent Buildings technologies and concepts. This free summary article is contributed by Gary Mills, a leading UK-based expert in the field of Intelligent Buildings, Intelligent Homes, and Building Management Systems. The origins of Intelligent Buildings and Building Management Systems have roots in the industrial sector in the 1970's, from the systems and controls used to automate production processes and to optimise plant performances. The concepts and applications were then adapted, developed and modularised during the 1980's, enabling transferability of the technology and systems to the residential and commercial sectors.

Intelligent Buildings - control theory

The essence of Building Management Systems and Intelligent Buildings is in the control technologies, which allow integration, automation, and optimisation of all the services and equipment that provide services and manages the environment of the building concerned.Programmable Logic Controllers (PLC's) formed the original basis of the control technologies. Later developments, in commercial and residential applications, were based on 'distributed-intelligence microprocessors'. The use of these technologies allows the optimisation of various site and building services, often yielding significant cost reductions and large energy savings. There are numerous methods by which building services within buildings can be controlled, falling broadly into two method types: Time based - providing heating or lighting services, etc., only when required, and Optimiser Parameter based - often utilising a representative aspect of the service, such as temperature for space heating or illuminance for lighting. heating - time-based controlTime-based controls can be used to turn on and off the heating system (and/or water heating) at pre-selected periods (of the day, of the week, etc).

Optimiser Parameters: whatever the conditions, the controls make sure the building reaches the desired temperature when occupancy starts.heating - optimiser parameter-based (temperature) control examples Temperature control: protection against freezing or frost protection generally involves running heating system pumps and boilers when external temperature reaches a set level (0°C). Compensated systems: will control flow temperature in the heating circuit relative to external temperature. This will give a rise in the circuit flow temperature when outside temperature drops. Thermostatic radiator valves: these sense space temperature in a room and throttle the flow accordingly through the radiator or convector to which they are fitted.

Proportional control: involves switching equipment on and off automatically to regulate output. Other methods can include thermostats, occupancy sensing PIR's (passive infra-red sensors), and manual user control. lighting control methods Different control systems exist, again time-based control and optimiser parameter-based where a level of illuminance or particular use of lighting is required. Zones: lights are switched on corresponding to the use and layout of the lit areas, in order to avoid lighting a large area if only a small part of it needs light.

Time control: to switch on and off automatically in each zone to a preset schedule for light use. Passive Infra-Red (PIR) Occupancy sensing: In areas which are occupied intermittently, occupancy sensors can be used to indicate whether or not anybody is present and switch the light on or off accordingly. Light level monitoring: this consists of switching or dimming artificial lighting to maintain a light level measured by a photocell.

Building management systems and intelligent buildings - energy savings

Until recent years, energy efficiency has been a relatively low priority and low perceived opportunity to building owners and investors. However, with the dramatic increase and awareness of energy use concerns, and the advances in cost-effective technologies, energy efficiency is fast becoming part of real estate management, facilities management and operations strategy. The concepts are also now making significant inroads into the domestic residential housebuilding sectors.For lighting, energy savings can be up to 75% of the original circuit load, which represents 5% of the total energy consumption of the residential and commercial sectors. Energy savings potential from water heating, cooling, or hot water production, can be up to 10%, which represents up to 7% of the total energy consumption of the domestic residential and commercial sectors. Experiences from studies in Austria suggest potential heating and cooling energy savings are up to 30% in public buildings. Even allowing for the fact that buildings used in the study may have been those with particularly high energy usage, the figure is an impressive one. (Source: EU2 Analysis and Market Survey for European Building Technologies in Central & Eastern European Countries

Building management systems and intelligent buildings - environmental and greenhouse gas benefits

Greenhouse gas emission reductions depend on and correlate to reductions in energy use. Intelligent Buildings and Building Management Systems technologies contribute directly to the reduction in energy use, in commercial, industrial, institutional and domestic residential sectors.In short, Intelligent Buildings and suitably applied Building Management Systems are good for the environment.Legislation and environmental standards; health and safety regulations; and global trends towards improving indoor air quality standards are all significant drivers of - and provide a continuous endorsement of the need for - Building Management Systems and the Intelligent Buildings technologies. Government Initiatives around the world are also driving the development and adoption of Building Management Systems technologies. For example the UK Carbon Trust allows Enhanced Capital Allowance (ECA) to be offset against taxation on energy efficient systems, which enables savings of around 30% for all energy-related Building Management Systems and Intelligent Buildings equipment, and the associated installation and design costs. Building management systems and intelligent buildings - market trendsCareful interpretation is required. In the UK, adoption of controls technologies into the new build and major refurbishment sectors is relatively high: Estimates a few years ago of the UK market for Building Management Control Systems for new build and major refurbishment, all sectors, suggest market adoption of (as at 1994 - Source UK1 An Appraisal of UK Energy RTD, ETSU -1994): Heating controls 70%. Hot water system controls 90%. Air conditioning controls 80%. However according to European Commission as many as 90% of all existing buildings have inapplicable or ineffective controls, many of which require complete refurbishment of control systems. Moreover conventional control systems stop short of automated Intelligent Buildings full capabilities.

A significant human element is required for optimal effective operation even if control systems correctly specified and installed.Given typical installations and equipment there is often a difficulty for building occupants (residential) or managers (commercial) to operate them correctly. Usage and correct operation are vital for effective results.Education of users; improved systems-design user-friendliness, and the provision of relevant instructions and information are all critical to enable theory to translate into practice, and for potential effectiveness and savings to be realised.

Building management systems and intelligent buildings - practical benefits

Energy-effective systems balance a building's electric light, daylight and mechanical systems for maximum benefit. Enhanced lighting design is more than an electrical layout. It must consider the needs and schedules of occupants, seasonal and climatic daylight changes, and its impact on the building's mechanical systems.

Lighting Systems

Adding daylight to a building is one way to achieve an energy-effective design. Natural daylight 'harvesting' can make people happier, healthier, and more productive. And with the reduced need for electric light, a great deal of money can be saved on energy. Nearly every commercial building is a potential energy saving project, where the electric lighting systems can be designed to be dimmed with the availability of daylight. Up to 75% of lighting energy consumption can be saved. In addition, by reducing electric lighting and minimizing solar heat gain, controlled lighting can also reduce a building's air conditioning load.

Mechanical Systems

The HVAC system and controls, including the distribution system of air into the workspaces, are the mechanical parts of buildings that affect thermal comfort. These systems must work together to provide building comfort. While not usually a part of the aesthetics of a building, they are critical to its operations and occupant satisfaction.

The number one office complaint is that the workplace is too hot. Number two is that it's too cold. Many people cope by adding fans, space heaters, covering up vents, complaining, conducting 'thermostat wars' with their co-workers, or simply leaving the office. Occupants can be driven to distraction trying to adjust the comfort in their space. Improper temperature, humidity, ventilation, and indoor air quality can also have significant impacts on productivity and health. When we are thermally comfortable we work better, shop longer, relax, breathe easier, focus our attention better.

In order to provide a comfortable and healthy indoor environment the building mechanical system must:Provide an acceptable level of temperature and humidity and safe guard against odours and indoor air pollutants. Create a sense of habitability through air movement, ventilation and slight temperature variation. Allow the occupant to control and modify conditions to suit individual preferences.

Resistance to building management systems and intelligent buildings technology "Our buildings are already energy-efficient." (Is the whole building energy-efficient, or is the landlord limiting his focus to common areas and gross leased spaces?) "We prefer the equipment with the lowest first cost when fitting out tenant space." (Does the specifier have any idea who will bear the increased operating costs of such a strategy?) "We need a two-year simple payback or less." (Is this still realistic, given that the percentage return on money markets is literally one-tenth what it was 20 years ago?) "Tenants pay all energy costs, and will get all the savings." (Do tenants really pay all energy or just the energy over a pre-set base year or expense stop?) "We're selling the building." (Should we assume then that lowering the operating expenses and reaping the increased asset value are not important?)

Intelligent Building

Homes building management systems for residential applicationsWith the widespread adoption of digital technologies there will be a profound change in how we communicate with others. Even how, in our homes, we shop for goods and services, receive news, manage our finances, learn about the world, and, conduct business, manage resources, find entertainment, and maintain independence and autonomy as we enter old age. These activities increasingly take place in the home. As our perception of banks, shops, universities, communities, and cities change in response to new technologies, so home building management systems are taking on an extraordinary new importance. As it exists today the home cannot meet these demands or take advantage of new opportunities created by social and technological changes. Most people live in spaces poorly tailored to their needs. Until recently, the majority of homes were wired with little more than the main electrical circuits, a few phone lines, and a few TV cables. Times have changed. Electrical and security system contractors routinely install low voltage communication network cables for a wide range of intelligent home or 'smart home' systems. Services and equipment that utilise these networks include: security; home theatre and entertainment; telephones, door-phones and intercoms; PC and internet networks; surveillance cameras; driveway vehicle sensors; communicating thermostats; motorized window blinds and curtains; entry systems; and irrigation systems.

Smart homes

Smart home' is an alternative term for an intelligent residential building, or an intelligent home. A few years ago these concepts weer considered futuristic and fanciful. Now they are reality. These terms are now commonly used to define a residence that uses a control system to integrate the residence's various automation systems. Integrating the home systems allows them to communicate with one another through the control system, thereby enabling single button and voice control of the various home systems simultaneously, in pre-programmed scenarios or operating modes. The development of smart home systems focus on how the home and its related technologies, products, and services should evolve to best meet the opportunities and challenges of the future. The possibilities and permutations are endless. Here are some examples:

Smart home example scenario 1

A scenario such as 'I'm Home' could be triggered by pressing one button on a key-ring remote-control from your vehicle as you approach the driveway. The control system receives the key-ring remote-control's command. This will then trigger a pre-programmed sequence of functions. For example starting by turning on the lighting in the driveway, garage, hallway, and kitchen. It then disarms the security system, opens the garage door, unlocks the interior garage entry door, adjusts the heating to a preset temperature, and turns on the whole-house audio system playing your favourite cd, whilst drawing you a bath. The control system is programmed to meet specific user requirements, initiating sequential automatic operation of the home systems, in response to 'one button' commands based on the situation and or time.

Smart home example scenario 2

At 7:30am and you awake to the sound of your favourite cd playing in the background; the lights in your bedroom switch on; 'fading up' to allow you to wake up in your own time. The downstairs intruder alarm system is de-activated. In the kitchen the coffee machine turns on to make a drink. The ground floor curtains and blinds open; the towel heater in the bathroom warms the towels. And you haven't even got up yet. This simple example demonstrates how smart home technology will change people's lives. Designing systems that group together and automate everyday simple tasks, improve quality of life and reduce stress levels.

I am grateful to Gary Mills of Fusion Group for providing much of the content in this article. Fusion specialise in the design of intelligent buildings, and living and working environments, which includes design for energy efficiency and climate change considerations.

Finger print scanner (the Chronicle)

Memenuhi janjiku utk mengulas security system kemarin, pd posting terakhir HDDStudio mengatakan titik lemahnya bkn di system....yg berarti bagi sy hal ini justru menunjukkan pehamahamannya yg kurang mendalam tentang apa yg disebut sbg Access Management dan Security system.....

Sekelumit ttg Access Management.

Pd awalnya access control system (sistem pengendalian keluar masuk personil) hanya berbasis & tergantung pd kunci & gembok..dan pastinya perangkat ini tdklah memadai apabila diterapkan pd fasilitas2 penting, rahasia & berbahaya.

Oleh krn anak kunci sgt gampang diduplikasi, gembok bisa dipotong...lalu apabila kunci hilang pasti semuanya serba repot dan satu lg yg paling penting, dgn methode berbasis kunci seperti ini kita pasti tdk bisa mengidentifikasi siapa yg masuk dan siapa yg keluar serta kapan waktunya....maka, demi tujuan peningkatan keamanan yg lbh akuntabilitas maka implementasi manajemen sistem akses berbasis elektronik harus diaplikasikan.

Pd dasarnya Access Management (AM) adalah suatu methode penataan data dan pengaturan terhadap orang2 ,kenderaan ataupun material yg melintasi pintu masuk maupun keluar dr suatu gedung atau area tertentu yg ingin & hrs dilindungi dgn perangkat sistem kontrol peangamanan elektronik, sehingga dgn memanfaatkan teknologi ini anda dpt memonitor pergerakan keluar masuk siapapun dan apapun yg ada dilokasi tsb & semua data tersimpan secara otomatis yg hanya petinggi saja dapat mengaksesnya.

Dgn kemajuan teknologi komputer saat ini, sistem AM bukan hanya bisa melakukan pengamanan berbasis kunci saja, tetapi dapat terus dikembangkan dan diprogram sesuai dgn kebutuhan (tingkat keamanan ato level security) ,seperti misalnya siapa dan kapan saja seseorang boleh melintasi area ato pintu tertentu & hrs dgn menggunakan cara apa.

Kebanyakan sistem AM menerima atau menolak upaya akses berdasarkan identifikasi yg sesuai dan tepat dari data yg tersimpan pada perangkat yg disebutkan dibawah ini :

• nomor password yg dimasukkan pd keypad
• kode informasi dr proximity card (kartu yg hrs didekatkan pd card reader), ato kartu pengenal yg digesek
• perangkat pembaca Biometric (pengenal diri alami) seperti suara, sidik jari, telapak tangan, retina, wajah dlsbgnya.

Biometric biasanya dipergunakan pd aplikasi memerlukan sekuriti tingkat tinggi seperti Laboratorium, Farmasi, pusat data rahasia dll.

Dgn rancangan dan program Access Management yg sempurna maka resiko terhadap hal2 yg tdk diinginkan dpt direalisir......tetapi tiada gading yg tdk retak dan tiada sistem apapun yg sempurna sehingga tiada celah utk menjebolnya ...sebab disadari maupun tdk realita tlah membuktikan apapun sistemnya , mau itu sistem hukum, sistem akuntansi, sistem keamanan komputer, Internet, sistem tata negara, sistem management............. semua punya celah dan kekurangan............

Akan tetapi mengacu pd pendapat Mario Teguh yg mengatakan bahwa justru karena gading itu retak maka dia sempurna, telah memberi arti bagi saya bahwa dgn ketidak sempurnaanlah maka roda dunia berputar, ada dinamika kehidupan yg selalu mencari keseimbangan dan merangsang manusia terus belajar menutupi kekurangan dan "menyempurnakan" temuan ,rancangan ,system dan lain sebagainya....tdk ada yg tdk perlu disempurnakan.

Kembali tentang finger Print sensor,...alat ini sekarang banyak dipakai utk data absensi & payroll....dan krn rejection ratenya kurang dr 3% dan kesalahan identifikasi 1/1000 (ini yg standard International lho) mk utk membodohi alat ini bkn perkara mudah.

Berkaitan dgn Intelligent Building, karena setiap pola jari jemari berbeda dari kelingking hingga jempol , tgn kiri & kanan, maka Finger Print Sensor dpt difungsikan utk 10 (sepuluh) skenario perintah-perintah pd system seperti :

TANGAN KIRI = perintah utk play musik ie:

• kelingking ~ Rock
• jari manis ~ Jazz
• jari tengah ~ dang dut
• jari telunjuk ~ Orchestra
• Jempol ~ Lagu favorit

TANGAN KANAN = perintah suasana penerangan

• kelingking ~ pencahayaan dgn suasana romantis
• jari manis ~ pencahayaa dgn suasana bermain/ pesta
• jari tengah ~ atmosfir yg tenang
• jari telunjuk ~ atmosfir yg hangat
• Jempol ~ security system alert

Semua ini ilustrasi....daftar perintah tinggal di pikirkan seleranya bagaimana dan maunya apa ,imajinasi sebenarnya integral tp ia tdk bisa dimanfaatkan tanpa kontemplasi.

sekian terima kasih.

Finger print sensor

[QUOTE=HDDStudio;497917]Wehehehehe....defeating biometric security sensor is easy .

Bang HDDStudio, thanks buat kontribusi & peran sertanya...,

Berbicara tentang Intelligent Building maka salah satu kriterianya adalah Safety & Security system dan oleh krn itu berbicara ttg hal ini maka tak boleh kita abaikan LEVEL SECURITY macam apa yg dibutuhkan sehingga kemungkinan dijebol ato "ditipu" oleh penyusup akan tertutup sama sekali dan dapat digagalkan.

Ada 2(dua) tugas dasar alat ini yaitu mengambil gambar sidik jari dan kemudian mencocokkan dgn image yg telah tersimpan.

Finger print sensor yg baik adalah yg mampu mendeteksi kedalaman lekuk dan garis lengkungan pada sidik jari (ingat,ia merupakan "kartu identitas" dgn pola yg unik dgn permukaan seperti jejeran lembah & tebing2 ,yg satu2nya didunia,takkan hilang kecuali jarinya dipotong dan yg fungsi sehari-harinya agar dpt memegang benda licin tanpa terpeleset) dan satu lagi kriteria finger print yg bagus....yaitu menambahkan semacam heat sensor didalmnya ,sehingga Gelatin, maupun cetakan ato foto dan bahkan jari yg dipotong akan di tolak oleh scanner ini.

Ada beberapa cara utk pengambilan gambar sidik jari, dan memang 2 diantaranya dgn methode seperti yg anda sebutkan itu.......tetapi sy kurang setuju ketika anda katakan defeating biometric security sensor is easy (kecuali sistem abal2)...sebab menurut pendapat sy walaupun sang defeator memahami cara kerja Finger print scanner & Biometric reader lainnya....tetapi apabila system securitynya dirancang ,dipasang serta diprogram oleh profesional (hm,..sy misalnya ), maka hal ini tentu menjadi hal yg rumit luar biasa bg anda atau bahkan undefeatable.

Integrated access security system memadukan seluruh perangkat dan dirancang serta diprogram sedemikian rupa sehingga there's no crack on the wall , so that the light can't come in.

PS,

kita bole membahas ini kapan2!!

A small talk about Finger Print scanner with HDDStudio in one of my thread.

Speaking about the Intelligent Building, we must remember that one of its criterias is Safety & Security system and if we talk about it we should not forget or ignore its security level so that the possibility of breaking down or deceiting the system by Intruder or infiltrator will be impossible succeded.

A fingerprint scanner system has two basic jobs, it needs to get an image of your finger, and it needs to determine whether the pattern of ridges and valleys in this image matches the pattern of ridges and valleys in pre-scanned images. (remember,biometric censor as finger print is the unique "identity card" of a person, it's the only one,lost proof except chopped by the bandit and you know what ??,its daily function is to hold the slicky object without slipping, that's why its pattern like ridges and valleys when you see it under microscope). another best scanners have additional pulse and heat sensors to verify that the finger is alive, so that the Gelatin mold , finger print photo or even chopped finger will be denied by this this censor.

There are a number of different ways to get an image of somebody's finger. The most common methods today indeed as you said are optical scanning and capacitance scanning. Both types come up with the same sort of image, but they go about it in completely different ways.
but I'm quite disagree when you said defeating biometric security censor is easy (except those "abal-abal" system)...because in my opinion although the defeator understands how the Finger print scanner & Biometric reader works,.... but as long as that security system is planned, installed and programmed by professional (hm,..like me for example), then I guarantee you that this is certainly will become the extraordinary complicated matter for you to fake or in other words you'll never ever able to defeat it.

Integrated access security system combined all equipments and it is designed as well as being programmed in such a way to make no cracks on the wall so that the light can't come in. cheers.
PS,Let's talk about it someday!!

Smart Home Illustration

(Lihat Video Bar part 1) Presentasi ini menggambarkan konsep otomatisasi secara gamblang dan sgt mudah dimengerti betapa dgn menggunakan system ini anda dapat mengontrol semua fasilitas dari manapun diplanet bumi ini seperti mematikan atau menghidupkan alat2 listrik & elektronik yg lupa dimatikan krn anda ter-buru2 meninggalkan rumah dlsbgnya, mengunci dan membuka pintu serta memonitor system keamanan dirumah anda.

Seperti yg pernah sy uraikan bahwa Intelligent Building saat ini sgt mungkin diciptakan & diprogram tanpa batas (limitasi hanya pd daya imajinasi anda) dengan harga 20x lbh murah dari konsep yg sama pd 10thn lalu.

Prinsip Intelligent Building adalah : Kemudahan, Kenyamanan,Keamanan dan Penghematan ,oleh karena itu semua kontrol dapat anda lakukan dgn ujung jari anda dimanapun anda berada sebab anda dpt membuka pintu tanpa hrs beranjak dari lokasi kegiatan anda dengan wireles handset,remote control, telefon cellular, touch sensor maupun PC.

Kontrol Keamanan secara menyeluruh dpt diprogram bekerja secara otomatis dgn hanya menekan satu tombol tertentu ataupun berdasarkan waktu seperti Sleeping time misalnya....Sang Penyusup/Maling pasti akan kena serangan jantung krn secara mendadak system akan menyalakan seluruh lampu Rumah anda dan mengedip-ngedipkan lampu luar seta membunyikan alarm ketika dia menerobos area steril.

Secara umum Intelligent Building adalah dimana System Integrator dpt menyatukan secara menyeluruh system2 yg ada disuatu bangunan seperti,......Door Acces system, security System,HVAC system,Water/Gas or Plumbing System,AV & Sound System,..Telephone System, Lighting System, Fire Alarm System dlsbgnya...sehingga dengan memadukan seluruh system tersebut ,kontrol setiap mode dapat dilakukan hanya dengan sentuhan sekali satu jari saja.Misalkan anda ingin santai menonton TV disore hari,.....sambil santai disofa dan menekan satu tombol seluruh sequences mode nonton TV otomatis melaksanakan tugasnya sepeti,....menyalakan AC pada temperatur yg nyaman kemudian menutup Gordyn jendela dan menurunkan screen serta mematikan lampu dan seterusnya.

Pada presentasi ini digambarkan suatu kondisi dimana andapun dapat menerima pengiriman paket dirumah anda meskipun disitu tak ada satupun orangnya didalam, sebab spt yg diuraikan terdahulu bahwa anda dpt mengontrol seluruh fasilitas yg ada di Smart/Intelligent Home dari manapun dan kapanpun...dalam hal ini Electric Bolt (Grendel/Kunci yg bekerja secara elektris) dipasang dipintu pagar dan Pintu Garasi yg dipasangin mekanisme pembuka dgn motor dpt anda akses via telephone ato internet (wuah,.....kalo para carder yg suruh pasang spt ini tentu gue tolak!!)

Ini menarik krn skenarionya bisa seperti sbg berikut :...., hacker melakukan Carding dan membeli sejumlah barang mewah dan mengirimkannya kealamat rumah yg dipasangin system ini.....lalu ketika barang dikirimkan si pak pos menekan bel yang nyambung ke HP Carder yg berada diujung dunia ...lalu dia menginstruksikan si pengirim paket itu meletakkan paket itu didalam garasi dgn membukakan pintu gerbang dan pintu garasi dari sono dan selanjutnya ....terserah anda.terima kasih!!

(see Video Bar part 1) This Presentation depicts concept of the automation system is explicitly very easy to be understood, on how by using this system you can control all facilities of your home from anywhere, anytime on the planet.....whether turning off or turning on the electricity apparatus you have forgoten to kill due to your hurriedly left the house etc, locking and opening the door or monitoring the alarm and security system in your house. Like I ever mentioned ,the Intelligent Building at this time is very possible to be created & to program it without boundary.(the limitations only in your imagination power) ,with the price of 20 times cheaper than the same concept in the last 10 years back.

The Intelligent Building principle is for : the Covenience, Safety, Security & economical....,that's why all control could be carried out by your fingertips anytime ,anywhere because you can open your door without having to move from the location of your activity by means of using the wireles handset,remote control, the telephone cellular, touch censor and PC.

Control of the Security system comprehensively may be programmed as it should work automatically by pressing one certain button or automaticaly run based on time such as Sleeping mode or other parameter.

Thiefs or Intruders will definitely be killed by his own heart attack because all in a sudden the system switchs on all of your House lights and flashing the external lights in case of they trigger the alarm system when trying to break through the perimeter of sterile area of your house.
Generally Intelligent Building is where the System Integrator can unite comprehensively all systems in a Building such as, ...... Door Acces system, Security System, HVAC system,Water/Gas or Plumbing System,AV & Sound System,.. Telephone System, Lighting System, Fire Alarm System etc.... in such a manner by combining all those stand alone systems, the System Integrator may design and program all of it as one Integrated system so that after completely programmed it could be carried out a touch of a button function, time function and the parameter function. For example , if you want relaxing & watching TV on afternoon,..... while lean on the comfort sofa you can simply press a button to switch the TV mode....and the system will carry out all tasks sequences automatically for you............... such as turning on the AC in a comfortable temperature, afterwards closing down the Gordyn or the the window then lower the screen and turn the mood of watching TV lighting et cetera etc.
In this presentation, it depicts a condition where you can also accept the sending of package to your house eventhough there is no body inside, because you can control all facilities of your house in a Smart/Intelligent Home from anywhere and anytime...in this example the way you can control opening or closing your door remotely is by using the Electric Bolt (the Latch works electrically) that installed in the door, main gate and Garage door of which the mechanism of the opener of the motor can be accessed via telephone or internet (wow,..... if the stupid Hacker asks me to design & install this system in his house, I certainly will deny it!! )
This is interesting because when scenario turn to be like this :....,Eventhough the house is empty and you are at a different continent with your house, it is still fully under your control if yours is an Intelligent Building.....so if A Hacker who did a cyber crime like carding and bought several luxury items and asked to send it to his address, a house that using the technology of Intelligent Building..... then, when the things arrived & delivered by the postman to the hacker's Intelligent house ,without the postman notice the bell he push actually ring in a form of sms to the hacker's celluler ..and from wherever he is, trough his monitor the hacker can see mr postman and communicate as well as instruct him to put all those things in his garage by remotely opening & closing all of the doors as needed.......& the rest what happen next is up to your & imagination then.

thank you.