Correct installation of anti-theft alarm detector

The installation process of the anti-theft alarm detector is a troublesome and time-consuming process. It is not to install and fix it to the building body according to the instructions. It is enough to check the detection position and the appropriate debugging angle with a little visual inspection.

Laying of pipelines

In the past engineering practice, you will find that some anti-theft alarm projects have hidden dangers in pipeline construction. The unsafe hidden danger we are talking about here does not refer to the hidden fire danger, but the hidden danger of man-made destruction. In some detector installation locations, we can often see the use of PVC pipe sleeves or bare alarm detection cables. The installation height of the pipeline is not enough and can be reached by human hands, so these can be regarded as hidden dangers of human damage to the system. Some people think this is unimportant, and think that the host part of the entire system may be equipped with anti-vandalism function, and any vandalism system can be detected. But this may greatly affect the working efficiency of the system, or even cause the system to be shut down for repair. At this time, the system maintenance engineer needs to invest more physical and mental energy to carefully find this fault point. If it cannot be found within a short period of time, for some systems, it is impossible for the system user to arm the system within the alert time, because the system will think that the failure has not been eliminated.

In some current projects, PVC pipes or troughs are used as protective devices for anti-theft system pipelines. I think this is obviously wrong. At the same time, for construction or investors, this is also extremely lacking in professional ethics. Compared with galvanized steel pipe, PVC pipe is very easy to be damaged by man-made. Although its cost is low, it is extremely lack of hardness index of galvanized steel pipe. I have been able to see pictures of many foreign engineering companies installing anti-theft alarm probes from certain media. If you study the pictures carefully, you can see that the sheath tube extending from the detector is a metal hose and a special card joint Connect this piece of hose to the detector, the other end of the hose is connected to a fully sealed metal cable box, and the other end of the box is connected to galvanized steel pipe.

Concealedness of pipeline

In the actual installation process, especially for some new buildings. In the design and installation, the concealment of the detector pipeline installation should be fully considered, and the pre-buried should be considered as far as possible when the protective tube can be embedded. This work can be completed by the civil construction unit when pouring concrete in the structure of the building, so as to ensure the concealment of the entire transmission path to the greatest extent. At the same time, it should also be considered that the embedded protective tube can be easily and flexibly connected to the main bridge frame. cable.

For the installation of anti-theft alarm probes, in the past, everyone thought that as long as they were fixed to the building according to the requirements in the manual, a little visual inspection of the detection orientation and moderate adjustment of the angle would be enough. In fact, the installation process of the anti-theft alarm detector is a process that needs to be bothered and time-consuming. Let's talk about the installation method of anti-theft detector.

Among them, two cores are used to connect the detector power supply, and the other two cores are used to connect the alarm switch signal. Instead of using the six core cable to connect the switch value and the working power, the remaining two cores are used to connect the tamper switch signal. . If the system does not connect the tamper switch of each detector at this time, for a thief who understands the anti-theft alarm system, he can easily turn on each when the system is in the disarming time period (that is, the non-working time period) Detector and "hand-operated foot", it is conceivable that the safety factor of such a system is very low. Of course, if the tamper switch is connected, it cannot be said that the high-security protection construction has been completed. At this time, the cable connecting the tamper switch should be connected to the 24 hours uninterrupted defense zone terminal of the host, so that it can be guaranteed The front-end probe equipment of the entire system is within the anti-tamper warning time for 24 hours. At this point, you can think about how many anti-theft alarm projects will seriously implement this process, I think such projects will be rare.

Early determination of installation location

Determining the installation location of the detector is also easily overlooked in actual projects. The selection process of the installation location of the anti-theft alarm detector is different from the determination of the installation location of the camera. If the processing is not good, the false alarm rate and the false alarm rate will continue to rise, which will affect the performance of the entire system. When the engineering installer finds that the position is not ideal, there are many problems when the installation position of the detector needs to be moved. First of all, the pipeline needs to be moved; if the distance between the pipelines is shortened, it is easier to handle. I am afraid that if you need to add an extension pipeline, you will have to face the problem of cable docking and extension. To facilitate future maintenance, it must be designed there. A junction box, this junction box will also produce a hidden danger point. I think this problem is unwilling to be seen by the owners, so it is very important to carefully determine the location of the detector in advance. Of course, in addition to the above problems, there is another problem that you cannot ignore. That is to easily change the installation location. It will destroy the decoration of the building, for example, you need to move a ceiling detector installed on the decorative surface composed of a whole piece of plywood to another location, which will be regarded as an impossible task.

The installation process of the anti-theft alarm system detector is a complicated process, because its working principle determines the particularity of the installation, and it is often easily overlooked by everyone, and the profit factor of the installation of the CCTV surveillance system camera comes In terms of technology and profits, they are all very different. Therefore, we can more clearly see that in order to design and install the anti-theft alarm system, we must do a good job of planning and designing in advance.