Wednesday, January 26, 2011

Practical security products is expected to have to enter the home security market (1)

With the deepening of reform and opening up and the rapid development of economy and rural areas, urban mobility, bring community many unstable factors, the order situation has become increasingly acute in criminal cases, particularly in rooms such as theft, robbery case rate increase.

Therefore, the relevant State departments put forward on comprehensive governance of social security, and to create safe and civilized community as one of the important content. At the same time, in order to further standardize the intelligent construction residential communities, Ministry of construction in particular developed intelligent community level standard, in accordance with the require smart communities must have security, information management, property management, information networks and other subsystems. Therefore, community security system has been gradually integrated into many community construction of the project, with Shenzhen region, for example, almost all new residential buildings are pre-installed home security system, and to prohibit the installation of network security, and more spending heavily in Guangzhou to dismantle alarm network, its security features are necessarily transfer to the electronic anti-theft system. Therefore, the residential community security system construction in the next few years there will be rapid growth, and also from Beijing, Shanghai, Guangzhou, Shenzhen and other developed city to the coast and the Mainland. This article from home security alarm equipment and intelligent alarm two facets, hope to be able to communicate with you!

Home security alarm equipment

Urban and rural new residence can no longer install anti-theft window, which has been recognized by many local government and issued a document notice reserved Windows after what economical and practical means of security, this is the intelligent housing community of designers, product manufacturers, real estate developers have to face an important subject.

Optional door electronic anti-theft measures are:

1. dual function anti-theft window — this anti-theft window with the window glass breakage alarm and alarm dual function is turned on.

Every Windows cost only several tens of meters, plus cable or wireless transmission equipment prices, ratio of the window installation burglar's low cost 10-20 times.

This anti-theft window is passive conductive film coated with adhesion to glass edges and pressure in the window frame, without scratches the glass and the influence of wind and rain.

Glass surface can be seen as a wire, through the double contact contact switch access cable to transmit alarm system embedded pipelines around doors and Windows, the user can't see any alarm device, push-pull plastic window or balcony of sliding doors, glass installation to steel plastic window, combined with good security part of the settings.

2. Security glass — residential communities in the most sensitive to security is one of each building to the second floor window of the household, they both have natural lighting and ventilation needs, but also to prevent thieves from entering.

As part of science and technology create an, one approach is the window glass with a layer of armored film to glass in broken fragments are not immediately and can generate alarm signals. Another better way is to use a sledgehammer or bullets are not breaking new glass material, neither effects lighting and security, but expensive.

3. Windows and doors with magnetic switch-doors and Windows in General is the thief to into the rooms enhacing, must be able to alarm the first line of Defense.

Reed switches is a reliable and inexpensive alarm equipment, indoor emergency alarm button, you can provide the most basic protection. Specific practices are fixed on the window frame or frames in the Active Setup switches, doors and Windows of the corresponding location on the installation of the magnet, has embedded type, surface paste-type and other installation methods, suitable for steel, wood, plastic-steel doors and Windows of precaution, the price is low, good reliability, but a single function.

4. glass breakage alarm — glass breakage alarm is usually installed on the wall or ceiling, is the use of glass broken ultrasonic to sensing.

There is a corner of the window, the use of glass breaking vibration for active sensors. Due to the sound of glass breaking and interior glass broken, phone, alarm clock, hot water bottles-ming, outdoor knocking at the door, whistle, motors and other sounds are difficult to distinguish, as the need to adopt computer feature voice recognition technology, software, control of CAIR's DSP technology, to distinguish the true from the false alarm. Israel Visonic company, United States DetectionSystems company, C & K companies have a good product, installation is also very convenient, for important and quiet indoor guard.

5. direction-curtain infrared detector

Screen curtain infrared detector, also called e-gate curtain curtain window or "electronic curtains", it applies to doors and Windows and balcony.

In the inner side of doors and Windows to install of the electron beam can replace the iron gate seal of doors and Windows, once it was broken and people through this 60cm electron beam, will now generate an alert.

This kind of dual passive infrared detectors use a direction analysis technique, performed by the microprocessor, fuzzy analysis control and recovery: narrow-band technology, when it is received within the detection range from external intrusion of signals, such as intruders from window climbing or enter from the door, the police immediately; but when the occupants in the indoor activities, but does not trigger the alarm.

If mounted on the roof terrace, you can distinguish it from the House Master not discriminating burglar alarm intrusion from the terrace and alarm, eliminates the household "fortification" and "disarm" and easy to produce false positives. Installation in high office, can prevent 2.5m wide regional long 6m lmX, the underlying domestic peace on the top floor of the top should be installed.

6. passive infrared fence-detector

This detector installation height 4m, 12 ~ 100m distance, there is less than the width of the lm 0.5m or two differential beam, in the South of ambient temperature and the temperature close to the human body, the passive infrared differential ability is poor, it is suitable for Northern environment temperature and body temperature difference larger areas of application, especially for single detached villa wall of protection.

Intelligent alarm

Intelligent alarm system is not a separate, isolated to reflect various physical quantities and status changes, but is comprehensively, from the relationship between them and the changes in the characteristics of the process to analysis and judgment, and thus concluded that the real detection results.

This requires the security system and detector has humanized design, with mimic human thinking of analysis and judgement features such as analog and alarm system is to analyze the various detectorThe relationship between the measurement results (time, frequency and rate, order, spatial distribution, etc.) to make a determination of whether the alarm. Video motion detector of adaptive system not simply set the threshold, and the integration of environmental factors as a background, on the basis of this analysis to target, to reduce false alarms.

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