Solution to Problems in Wireless Monitoring System Project Engineering

1. Observe carefully

Observing is the first method in the debugging judgment process. It runs through the entire debugging process. Observe to be careful and serious.

(1) Observe the working environment of equipment operation

There is no shelter around, and if so, can it be avoided by elevating or relaying. In short, it is to ensure that the wireless monitoring equipment works in the public viewing environment.

(2) Observing similar equipment near the equipment

Look at other devices will not cause the same frequency interference, there are no sources of electronic interference around.

(3) Observe each part in a system

A wireless monitoring system is always formed by a series of devices. Carefully observe each component, including connected gadgets, power supplies, etc., to make sure that everything is OK.

2, the minimum system method

The minimum system refers to the most basic hardware and software environment that enables the monitoring system to operate from the perspective of debugging.

The minimum system method is mainly to determine whether the system can work normally in the most basic software and hardware environment.

If it does not work properly, it can be determined that the most basic hardware and software components are faulty, and thus function as fault isolation.

The combination of the minimum system method and the gradual addition method can quickly locate the fault and improve the debugging efficiency.
 

3, gradually add / remove method

Gradual addition method, based on the minimum system, adding only one component/equipment or software to the system at a time.

To check whether the fault phenomenon disappears or changes, to determine and locate the fault location.

4. The gradual removal method is just the opposite of the gradual addition method.

Step-by-step addition/removal methods generally work with replacement methods to locate fault locations more accurately.

5. Alternatives

The replacement method is a method of replacing a faulty component with a good component to determine whether the fault phenomenon has disappeared.

1) Good parts can be of the same model or different models.

The order of replacement is generally:

According to the phenomenon of failure or failure category in the second part, consider the parts or equipment that need to be replaced;

Replace in a simple and complex sequence. When judging communication failure, first consider the setting of the communication parameters of the equipment or whether there is a problem with the relevant jumper, and then consider whether the communication line is faulty, and finally consider whether the communication conversion module or the serial port is faulty.

The first is to check the communication lines, power lines, etc. connected to the parts that are suspected to be defective, then replace the parts that are suspected to be defective, and finally the other parts associated with them.

2) Consider the component that was replaced first from the failure rate of the component. Parts with high failure rates are replaced first.

6, the comparison method

The comparison method is similar to the replacement method, that is, comparing the appearance, configuration, and operation phenomena of a good component and a component that is suspected to be faulty, and can also be compared between two devices to determine the faulty device in an environment setting and hardware configuration. The difference in aspects, so as to identify the fault site.