Due to the lack of attention to the maintenance of the monitoring system, many monitoring equipments have been damaged just after they are put into use, for the following reasons. First of all, the management department pays insufficient attention to the maintenance of the monitoring system. It believes that it is not necessary to invest more manpower, material resources and financial resources. Therefore, the management of the monitoring system facilities is neglected in the management process, resulting in the late management and maintenance of the system. Secondly, there is no complete and planned monitoring equipment maintenance implementation plan.
The second is that the procurement of monitoring equipment excessively considers the cost performance of the equipment and neglects the maintenance and maintenance of the monitoring system and equipment. There are too many brands of monitoring equipment, too many product suppliers, and the after-sales safeguard measures of the manufacturers are not in place. As a result, after the monitoring equipment is used for a period of time, the equipment failure continues and the damage rate continues to rise. Eventually, the original equipment has to be updated in a large area. Repeated investment and serious waste.
Monitoring equipment maintenance method
In order to do the maintenance work of the monitoring equipment, the maintenance center is equipped with the corresponding manpower and material resources (tools, communication equipment, etc.), responsible for daily monitoring, maintenance, service and management of the monitoring system, and undertakes the maintenance service of the equipment to ensure monitoring. Long-term, reliable and efficient operation of the system
First, maintain basic conditions
As the old saying goes, "the clever woman is difficult to be without rice", the same is true for the maintenance of the monitoring system. The basic maintenance conditions required for the normal maintenance of the monitoring system, that is, the "four Qi", that is, the spare parts , accessories, tools, instruments.
1, spare parts
Generally speaking, each system must be built with a corresponding spare parts library. It mainly stores some important equipment that is not easy to repair immediately after damage, such as cameras, lenses, monitors, etc. In the event of failure of these devices, the system may not operate properly and must be replaced in a timely manner. Therefore, a certain number of spare parts must be available, and the inventory of the spare parts library must be continuously updated according to the equipment maintenance and the operating cycle of the equipment.
2, accessories Qi
The accessories are mainly the extra configuration of various components and modules in the equipment, and can be prepared more, mainly for the maintenance of the equipment. Commonly used accessories have various integrated circuit chips and various circuit discrete components required by the circuit. Other larger devices must be equipped with certain functional modules for emergency use. In this way, after maintenance, a small investment can be used to generate good benefits, and a large amount of equipment for updating equipment can be saved.
3, tools and testing instruments
In order to do the equipment, you must configure the common maintenance tools and maintenance instruments, such as various pliers, screwdrivers, electric pens, electric soldering irons, tapes, multimeters, oscilloscopes, etc., if necessary, you should always add them, if necessary, you should also Make a test tool such as a simulated load.
Second, some precautions in equipment maintenance
During the maintenance process of the monitoring system equipment, some situations should be prevented, and the equipment should be operated as normal as possible. Mainly, it is necessary to do moisture, dust, corrosion, lightning, and interference prevention.
1, moisture, dust, anti-corrosion
For the various collection devices of the monitoring system, since the device is directly placed in a dusty environment, it will have a direct impact on the operation of the device, and it is necessary to focus on the maintenance work of moisture-proof, dust-proof and anti-corrosion. If the camera is suspended from the shed for a long time, the protective cover and the dust-proof glass will be quickly covered with a mixture of dust, carbon ash, etc., which is dirty and black, and also corrosive, which seriously affects the viewing effect. It is damaged, so it is necessary to do the dustproof and anticorrosive maintenance work of the camera. In some places where the humidity is heavier, the installation position and equipment protection should be adjusted during the maintenance process to improve the moisture resistance of the equipment itself. At the same time, dehumidification measures should be taken frequently in the high humidity zone to solve the moisture protection problem.
2, lightning protection, anti-interference
As long as people who have been engaged in the maintenance of electromechanical systems know that lightning storms are common occurrences during lightning storms, it poses a great safety hazard to the normal operation of monitoring equipment. Therefore, monitoring equipment must be protected against lightning during maintenance. highly valued. The lightning protection measures are mainly to make the lightning protection grounding of the equipment grounding. The integrated grounding network with independent ground resistance less than 1 ohm should be prepared according to the equipotential body scheme to avoid the lightning protection grounding and the lightning protection grounding network of the weak current system. Mix together to prevent power grounding grid clutter from interfering with the equipment. Anti-jamming is mainly to adhere to the principle of strong and weak power separation when wiring, separate the power cable from the communication cable and video cable, and strictly follow the wiring specifications of the communication and power industry.
Third, the specifics are as follows:
1. Dust and clean the equipment once a quarter, sweep the dust exposed by the monitoring equipment, remove the dust from the camera, protective cover and other components thoroughly, then wipe off the lenses with anhydrous alcohol cotton to adjust the clarity and prevent The dust is sucked into the body of the monitoring equipment by factors such as machine operation and static electricity to ensure the normal operation of the machine. At the same time, check the ventilation, heat dissipation, clean dust, power supply and other facilities in the monitoring room. The outdoor temperature should be between -20 °C and +60 °C, the relative humidity should be between 10% and 100%; the indoor temperature should be controlled at +5 °C to +35 °C, and the relative humidity should be controlled at 10% to 80%, leaving it to the machine room for monitoring. The equipment has a good operating environment.
2. According to the instructions of each part of the monitoring system, check the technical parameters of each part of the monitoring system and the quality of the transmission line of the monitoring system, handle the hidden troubles, assist the monitoring supervisor to set the usage level and other data to ensure that each part of the equipment The item works well and works fine.
3. The equipment for monitoring equipment that is easy to aging should be inspected once a month. Once the aging phenomenon is found, it should be replaced and repaired in time, such as video head.
4. The dust-cleaning part is cleaned regularly every quarter. If the monitor is exposed to the air, due to the static electricity of the screen, many dust will be adsorbed on the surface of the monitor, affecting the clarity of the screen. Regularly wipe the monitor. Proof the color and brightness of the monitor.
5. The monitoring equipment for long-time work is regularly maintained once a month. If the DVR works for a long time, it will generate more heat. Once the electric fan is faulty, it will affect the heat removal, so that the DVR does not work properly.
6. Monitor the operation of the monitoring system and equipment, analyze the operation, and find and eliminate the fault in time. Such as: network equipment, server systems, monitoring terminals and various terminal peripherals. Operational checks for desktop systems, virus protection for network and desktop systems.
7. Optimize the monitoring system and equipment regularly every month: reasonably arrange the monitoring network's monitoring network requirements, such as bandwidth and IP address. Provide monthly monitoring system network performance detection, including network connectivity, stability and bandwidth utilization; real-time detection of all external network attacks that may affect monitoring network devices, real-time monitoring of server operating status, traffic and intrusion monitoring Wait. Check the abnormal situation and carry out related processing. According to the needs of users, the monitoring network is planned and optimized; the software and hardware faults of the server are handled and the related hardware and software are disassembled and assembled.
8. Provide monthly regular information service: On the first working day of each month, submit the repair, maintenance, maintenance and maintenance records of the previous month to the other party in the form of electronic documents.
Handover of engineering and technical materials
In order to ensure that the after-sales service department can have better conditions for system maintenance and maintenance work, the engineering and technical department must:
1. When the project is accepted or delivered for delivery, the personnel of the after-sales service department must be notified to the site, so that the after-sales service personnel are familiar with the composition of the project as soon as possible, and the use situation and the relevant users of the construction unit.
2. After the project is delivered for use, the engineering department and the technical department must submit the following information of the project to the after-sales service department:
(1) All design plans, drawings
(2) Instructions, certificates, test reports, etc. of relevant equipment and equipment (3) Daily routine work for maintenance of all completed data systems of the project.
3. The daily routine of system maintenance is carried out by the after-sales service department, and the specific regulations are as follows:
(1) Establish a system maintenance work file, detailing the routine maintenance work of each engineering system, so that any system can be handed over to any technical personnel of the department at any time, without the lack of relevant information or the operation of the person. I can't work.
(2) Starting from the system delivery, the system will be checked once every two months, and the user's user will be invited to accompany the inspection as much as possible. At the same time, the actual use of the user and the daily maintenance ability can be further trained. And improve.
(3) From the beginning of the system delivery, the key equipment of the system, such as the camera gun, pan/tilt, digital video host, color display, monitor, etc. of the CCTV monitoring system, and the host, detector and other equipment of the anti-system, Comprehensively check the performance of the system to ensure that the system is operating well.
(4) Beginning with the system delivery, conduct a comprehensive inspection of all equipment and circuits of the system every year, and try to keep the performance of the system in good condition when delivered. For the long-term use, and the performance deviation is too much to affect the overall effect of the system, you should try to convince the user to replace it to ensure the normal use of the system. The specific operation of the maintenance work.
Overhaul main problem
First, line maintenance
1. The super five network cable has poor tensile strength. Is the inspection line broken? Can you observe the power supply status of the transformer power indicator? Check if the transformer is working properly?
2. The cable break is completely properly docked, but it is still unable to supply power. Check if the network socket is damaged. Check if the transformer is working properly?
3. The line is powered normally. There is no video signal. Is the check line broken? The cable breakage has been completely correctly connected. Check whether the twisted pair video transmitter is damaged or the connector is loose. It can be exchanged with other channels for detection. (If you check the twisted pair video transmitter is damaged, please apply for replacement)
4. Is there a video that cannot control the pan/tilt and check if the line is pulled off? The cable break is completely correctly docked. Check whether the dome number corresponds to its channel address code.
Second, camera maintenance and repair
1. The outer transparent cover is a highly transparent acrylic plate. After one-time pressing into a hemispherical shape, the camera needs good light transmission. Do not wear a transparent cover to cause the camera image to be blurred. Keep the transparent cover clean and bright. When the image is blurred, check if the outside of the transparent cover is too dirty or has been worn. If the internal dust is accumulated, please carefully remove the whole machine, open the transparent cover of the camera under safe conditions, and carefully wipe the ash.
2, the internal not only has electronic circuits, but also mechanical devices, its small size, limited internal space, mechanical devices are relatively small, remember to take it lightly, do not fall and do not touch.
Third, the power failure
The source is incorrect. There are several possibilities: the power supply line or the power supply voltage is incorrect, the power is not enough (or the wire diameter of a certain power supply line is not enough, the voltage is too large, etc.), and the transmission line of the power supply system is short-circuited, open, and instantaneous. Pressure and so on. In particular, equipment damage due to power supply errors or transient overvoltages may occur. Therefore, in the system debugging, before power supply, we must carefully check and check carefully, and should not be taken lightly.
Fourth, the line is faulty
If the processing is not good, especially if the line connected to the equipment is not handled well, there will be problems such as disconnection, short circuit, poor insulation between the lines, miswiring, etc., resulting in equipment damage and performance degradation. In this case, the analysis should be carried out in a calm manner based on the fault phenomenon, and it is judged that the fault phenomenon occurs on the several lines due to the problem of which lines are connected. This will narrow the scope of the problem. It is particularly worth noting that the camera with the pan/tilt is very common due to the omnidirectional movement, which causes the disconnection and breakage of the connection. Therefore, the connection between the equipment and various lines that pay special attention to this situation should meet the requirements for long-term operation.
Monitor maintenance files and services
1. The administrative department should organize and archive the relevant information of all users, and receive and organize the user's fault record.
2. The fault record to be processed after work every day is handed over to the after-sales service manager, and the after-sales service manager can arrange the work according to the specific situation.
3. The administrative department cooperates with the after-sales department to establish a maintenance work record card. Each time the customer reports a problem, from receiving the call, to dispatching relevant technical personnel to handle, and processing, processing the results, the user's opinions should be fully recorded, and It will be included in the assessment system as the work assessment standard of relevant personnel.
4, the general fault handling, after-sales service personnel should be completed the next day after receiving the report, the failure of the main equipment, affecting the use of the system, complete the processing within 4 hours after receiving the report, the specific operation of the maintenance work, especially serious faults If the system is paralyzed, it should be present within 2 hours after receiving the report.
5, in accordance with the relevant provisions of the state to implement the warranty work, is within the scope of the warranty, must ensure that the user receives warranty service, for equipment that will affect the overall work of the system, the backup machine should be provided during the warranty period, or according to the site conditions, take feasible measures to make Users can continue to use the basic functions of the system normally, and minimize the inconvenience caused to the user due to the warranty work.
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