Each manufacturer for many came to the conclusion after analyzing the cause of the problem, is there are a lot of DVR fault can contain beforehand, improving after-sales service personnel quality at the same time, so to reduce the pressure of after-sales should be promising.

To examine from the Angle of manufacturing DVR, this product can not difficult to find this kind of product of some inherent defects. Because DVR is a computer system, made up of hardware and software, and because the video data is huge amounts of data, and processing the data of computer software are relatively complicated, probability of nature will be bigger.

The influence of DVR system structure on the stability and reliability

DVR system hardware is mainly composed of CPU, memory, motherboards, graphics CARDS, video acquisition card, chassis, power supply, hard disk, connecting cable, etc, let us from the viewpoint of systematology and to analyze the stability and reliability of these parts.

CPU and memory

System CPU and memory products, are generally adopt international companies are through strict test and inspection, the probability of problems are relatively small, but now the industry has an error, is there are a lot of users are blindly requirements CPU frequency, the higher the better, the greater the memory, the better, instead, they will reduce the performance, reliability and stability of the system. The higher the CPU frequency, the greater the likelihood of system disturbance. The greater the memory, does not represent the machine performance is high. The performance of the machine is to rely on the CPU, motherboard, memory, hard disk, video card, etc many hardware optimal collocation and good combination, not a hardware performance is good, on the contrary will also affect the normal performance of the other hardware, and cause the instability of the machine. So we suggest that as long as can satisfy the system requirements, after strict test and long-term stability test of hardware match is enough, without the need to like computer enthusiasts blindly pursue high system configuration.

Motherboard and graphics card

Motherboard and graphics card is relatively more, the industry of PC motherboard and g-kong motherboard who more stable has been controversial, but through the investigation and analysis, PC motherboard, especially brand motherboard, relatively better, because from components, IC and discrete component, everyone choose too. And PC motherboard, because of the large amount of it faces customer knowledge and skill level is relatively low, so the maintenance rate reduction is crucial for it, so in the process of production quality guarantee demand higher and better. For industrial motherboard let's not talk about the product quality factors, in terms of its form a computer system, it has to be made up of main board and floor, it's virtually increase the point of failure and instability of the machine, for industrial control main board it is more suitable for working in harsh environments, so in when choosing computer configuration, the stability of the engineering contractor should pay attention to the equipment and the use of environmental aspects to consider, rather than blindly pursue industrial control or PC. But there is a, choose which kind of motherboard, select a well-known brand is crucial, because the current PC motherboard, or industrial control board has good and evil people mixed up, each brand of quality difference is very big.

Video compression card

Video compression card is the most important hardware in DVR, but as a result of the current domestic video card is chosen mostly the design scheme of several well-known brands, such as PHILIPS, TI, etc., so the stability is relatively good, as long as pay attention in the process of design and production, general won't have too big difference.

Chassis, power supply, hard disk and connection cables

Chassis, power supply, hard disk and the connection cable is the most weak link DVR products, a lot of people do not pay attention to these details, in fact, now the main problem of DVR is caused by the several aspects. First is hard, because the DVR recording way, causing frequent mobile hard disk and high speed rotation of the head, make the hard disk failure rate is higher. As desired, and in order to meet the requirements of long time record the number of hard disks are often a lot, hard disk failure reflected in the DVR system will often appear in system crashes, slow start-up and operation and so on. To reduce the hard disk failure, the main should be controlled single hard disk number, generally had better not more than eight, hard disk should be strengthened heat dissipation, reduce disk thermal injuries. Case is likely to cause one of the reasons for failure, besides beautiful and strong, also just want to good heat dissipation, but now it is a pity that many companies are not pay attention to this, the wind into the wind out of design and the fan can work stably for a long time, are very important. DVR video compression card, the more power is larger, more heat, plus hard the big heat, excessive heat accumulation within the chassis, processes is not good will destabilize the system. If you want to rely on the strong fan cooling to work properly, we imagine, once the fan fails, then the system will be how? Another aspect, the contact reliability of the system connection cable, thermal stability is very important, especially the hard disk cable and power cable. We found that in the process of maintenance of the hard disk damage is largely caused by loose cables or poor thermal stability. Additional power is the core of power in the system, if there is something wrong with the power supply will lead to a lot of strange fault. Typical failure often work in video interface card machines irregular crash, unstable, all kinds of operation become slow, etc.

Comprehensive above reasons it is not difficult to find that many of the problems can be improved from the aspects of purchasing and manufacturing process, from the Angle of production, greatly improve the stability and reliability of DVR system, can greatly reduce the amount of maintenance in the future. Such as: the use of metal components; Continuously improve circuit design in order to enhance stability of the video compression card in order to reduce power consumption; Strengthen the degree of fitting between a solid; The cable loose parts easy to secondary solid welding; To scientific banding connecting cable to improve the ventilation and heat dissipation.

How to improve performance of maintenance work

Although through some effort from the Angle of production can reduce some amount of maintenance, but due to some factors inherent DVR makes its maintenance quantity more than the original simulation equipment. How to do maintenance, reduce the maintenance workload is the problem facing the front of every engineering company. According to experience, promote the repair work effective factors have the following two aspects:

The skills of technical personnel quality

Maintenance personnel's quality plays a very important role, DVR is a collection of computer technology, electronic technology is one of the high-tech product, it requires maintenance personnel have rich professional knowledge, but also through strict training. However it is a pity that many engineers have the DVR as a computer assembly and maintenance, so would appear repeatedly repair cannot completely solve the problem, and the more repair machine is more unstable. Thus, improve the quality of after-sales personnel is very important.

The correct maintenance method

How to choose the correct maintenance method, which is one of the important factors make repairs made good effect. Now most companies like to solve the problem at the scene, from the stability of system, we think that this method is not good, because the maintenance technicians, there are differences between the methods and ways to deal with problems, a machine could be recognized after many processing, not to mention there is stability and reliability. In addition, if it is a small problem can be repaired, if it is a big problem is trouble, owing to lack of on-site testing and aging conditions, a computer has been large discharge after eight pieces reassemble the equivalent of a new machine production, is the best way to shipment back to the company for repair, because in this way can we make full use of some test conditions, completely solve the equipment failure, at the same time, guarantee the stability and reliability of the machine. And this method also can make full use of human resources, such as a big company can set up a maintenance department in headquarters, arrange one to two high levels of technical personnel to do maintenance, will be back to the company field failure equipment by engineering personnel, of course, the scene also need to use the standby machine, although this method seems to increase the maintenance cost, but in fact it generated by the maintenance effect is priceless, but also can save personnel and resources, to a one-time thoroughly solve the problem, the comprehensive calculation, it is very cost-effective.

Above all in the application of the DVR system has three factors are worth considering, rather than go with the flow of the pursuit of cheap equipment or unreasonable high-grade configuration:

Machine configuration options: according to the different the use environment of the aircraft configuration;

Equipment supplier selection: the same as system components should choose professional equipment suppliers;

After-sales maintenance: determine the correct after-sales service solutions.