After a monitoring system enters the commissioning stage, trial operation stage and delivery, there may be such and other failure phenomena, such as: can not operate normally, the system can not meet the technical requirements of the design requirements, the overall performance and quality is not ideal, that is, Some "soft problems". These problems are inevitable for a monitoring engineering project, especially for a complex and large-scale monitoring engineering project.
1. Equipment failure caused by incorrect power supply
Incorrect power supply generally has the following possibilities: the power supply line or the power supply voltage is incorrect, the power is not enough (or the diameter of a power supply line is not enough, the voltage drop is too large, etc.), the transmission line of the power supply system has a short circuit, open circuit, or transient Press and wait. In particular, damage to equipment due to power supply errors or instantaneous overvoltages occurs from time to time. Therefore, in system debugging, before power supply, it must be carefully and strictly checked and checked, and should never be taken lightly.
2. Failure caused by poor wiring
Because some devices (such as cameras with three variable lenses and gimbals) have many connections, if the processing is not good, especially the lines connected to the device are not processed well, there will be open circuit, short circuit, and line insulation Problems such as bad or wrong wiring lead to equipment damage and performance degradation. In this case, it is necessary to calmly analyze according to the fault phenomenon and determine which lines have the faulty connection on several lines. This will reduce the scope of the problem. It is particularly worth noting that due to the omnidirectional movement of the camera with the gimbal, it takes a long time to cause the connection to fall off and break. Therefore, pay special attention to the connection between the equipment and various lines in this case should meet the requirements of long-term operation.
3. The quality of the equipment or component itself
In theory, all kinds of equipment and components are likely to have quality problems. However, from an empirical point of view, it is purely a quality problem of the product itself, which mostly occurs in devices such as decoders, electric pan-tilts, transmission parts and so on. It is worth pointing out that some devices may not be unusable in terms of quality as a whole, but some technical indicators can not reach the indicators given in the product manual. Therefore, the necessary samples must be tested for the selected products. If it is indeed a product quality problem, the best way is to replace the product, rather than disassembly and repair.
In addition, the most common problem is due to improper adjustment of equipment. For example, the adjustment of the camera's back intercept is very meticulous and precise. If it is not adjusted carefully, problems such as poor focus or defocusing during various operations of the three variable lens will occur. In addition, whether the positions of some switches and adjustment knobs on the camera are correct, whether they meet the technical requirements of the system, whether the decoder coding switch or other adjustable parts are set correctly will directly affect the normal use of the device itself or the normal performance of the entire system .
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