Sixteen monitoring system common breakdown solution (1)

In a monitoring system will need access to the completion of the commissioning phase, the pilot stage to delivery, the potential for a variety of symptoms, such as common: does not run correctly, the system does not meet the design requirements of the specification, the overall performance and the quality is not ideal, especially for complex, large scale monitoring project, it is inevitable, it is necessary for us to do the appropriate treatment to resolve the failure to ensure the system's normal operation.

1. incorrect power supply fault is thrown.

Power supply incorrect generally has the following possible: the power supply voltage of the power supply line or is incorrect, power not enough (or a certain way power supply line of wire diameter, Buck too large, etc.), power transmission lines appear short circuit, open circuit, the instantaneous overstress. Especially because of the power supply or transient over-voltage situations causing damage to the equipment. Therefore, in the system, power supply, must be strictly carried out checks and inspections, should never be taken lightly.

2. Since some devices there are a lot of links, if treatment is not good, especially with touches of line handling equipment is not good, circuit breaker, short circuit, cable insulation bad, misconnection, cause damage to equipment, loss of performance.

In this case, should be based on the symptom calmly for analysis, judgement on several lines due to which there is a problem with the connection line will produce the symptoms. Therefore, we should pay special attention to the case of equipment and various lines of connection should be consistent with the long-running request.

3. equipment or parts of its own quality issues.

A variety of devices and components are quality problems may occur, is the quality of the product itself, occurred in the decoder, electric head, transmission parts, and other devices. It is worth noting that some devices generally speaking quality may not show the problem cannot be used, but some of the specification is not the product description on the given index. It is necessary to the selected products to conduct necessary sampling inspection. If there is a product quality problem, the best approach is to replace the product, instead of dismantling repair.

4. the equipment (or parts) and equipment (or parts) connection does not correct the problem generally occurs in the following areas:

⑴ impedance mismatch.

⑵ communication interface or communication methods that do not correspond.

This situation usually occurs in the control host and decoder or control the keyboard and other device communication control relationship, that is, between the selection of the control host and decoder or control keyboard, and so is not a manufacturer's product. Therefore, host, decoder, control the keyboard, and so should use same manufacturer's products.

⑶ drive capability not enough or exceed the number of the device is connected.

For example, some screen divider with alarm input interface in the product manual on gives and alarm detector, long delay recorders connected systems hosts into the system, if the alarm sensor and join to the screen divider of alarm input, alarm signal probe for both driving alarm host, but also driven screen divider.

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