Monday, December 20, 2010

【 Weak current College 】 all intelligent weak electricity system problems (2)


The intelligent subsystems in application many complaints, none would have two: one product performance; the second is to use. The following will list for indoor security and intercom, closed circuit monitoring system, perimeter security, electronic patrol, meter reading systems and parking management system, designers need attention.

Parking management system

Complaints cause is not allowed to stop time data, followed by the product quality is not good, often wrong, causing the system performance is not stable (vehicle).

Car park management system of mechanical part of the Basic that their electronic parts need to be further improved. Car park of electromagnetic interference, in line, be sure to take the shielding measures, while improving the read head and computer communication mode, you cannot read the data, you should have some communication protocols to prevent interference. Car on startup, the interference is relatively large, it should be in the car stopped quka and paying, to transfer the data. In short, technically, should improve the electronic part.

Patrol system

Patrol system generates complaints because there are 2: 1. system instability; 2. patrol point settings are not reasonable, software settings are not reasonable. Software functional equipment must and community of property management systems, cannot be the same, otherwise, the system just doesn't work.

Perimeter protection system
The intelligent subsystems in application many complaints, none would have two: one product performance; the second is to use. The following will list for indoor security and intercom, closed circuit monitoring system, perimeter security, electronic patrol, meter reading systems and parking management system, designers need attention.

Perimeter protection system

Microwave network-perimeter protection system typically used by the military, and other vital sectors, motion sensing-perimeter defenses more system, generally used for community-wide, perimeter and irregular areas, for example, a ravine in the Villa area. In General, the more the perimeter defense systems are based on infrared correlation which, in the North to adopt this pattern with extreme caution, because the winter snow will be covered for shooting probe "," make the system less effective, and outdoor surveillance system, to make up for it. The more the perimeter defense systems if you join the lighting linkage, wonders, and when the lights get started, a beam of light shot past the ferocious, will make the thief. Attention alert don't sound linkage, otherwise it will disturb household rest and create a tense atmosphere.


Closed circuit monitoring system, closed circuit monitoring role in the safety precautions, if not quite the system, the indoor security doing good, theft is still ongoing. The thief as long as into the community, he must try to steal something, even a robbery. Security or to outdoor precautions. In the design of the closed circuit monitoring system, to meet the requirements of the case, use the camera, but also in the case of last resort, easily do not use with PTZ camera, PTZ, first to bad, the second, when the lens up and down the rotation, the monitoring centre is not conducive to observation, third, the price of a head or a cheaper than cameras, in general do not easily reach people, and on safe and relatively important places, such as perimeter nearby, with video mobile monitor function of the central processor, as long as the object moves, the Center immediately to the police. According to experience, it is recommended that the current high scale community consider 1 DVR, you can implement remote, LAN, Internet, telephone monitoring, operation, which not only embodies quality, but also very practical. While I personally do not recommend matrix for closed circuit monitoring system, because it is more difficult to grasp, matrix programming difficult, especially in terms of security, relative operation difficult problems difficult to exclude possible picture processor, can real-time monitoring, real-time video can also be the ideal effect. This design system with colour camera, and a black and white cameras, hard disk video and analog video, taking into account the benefits and costs.

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