Common problems and solutions in the use of photoelectric direct reading water meters

Common problems and solutions in the use of photoelectric direct reading water meters

 The working principle of the photoelectric direct reading remote water meter is to inject a light-transmitting groove with a special shape on the word wheel of the counter of the ordinary water meter, and fix the photoelectric sensor and related circuits on both sides of the word wheel. The principle of the encoder is that each word wheel is used as a code disc, and the level changes caused by the five groups of infrared receiving tubes to sense the infrared light emitted from the light-transmitting slot on the word wheel form a group of five-digit numbers, which are transmitted to the code after decoding. Meter reading equipment. With the development of smart water affairs, the market share of photoelectric direct reading remote water meters is increasing. Combined with the actual use situation, this article provides some solutions for common problems and solutions in the use of photoelectric direct-reading remote water meters.

 In the process of using the photoelectric direct reading remote water meter, it is affected by factors such as communication line specifications, wiring quality, on-site environment, weather and local mobile network. Different solutions are required for different problems.

In view of the situation that the photoelectric direct reading remote water meter has been unable to communicate, there are mainly the following four phenomena and the possible causes and solutions:

 In view of the situation that the photoelectric direct reading remote water meter has been unable to communicate,

 There are mainly the following phenomena and their possible causes:

.Single meter communication failure: The photoelectric direct reading remote water meter is destroyed by man, or the signal line of the meter is open circuit;

. Communication of all water meters after a certain point of the bus fails: the bus is destroyed, causing the bus to be disconnected;

. Communication failure of all water meters under the collector: the collector is powered off, the collector or concentrator antenna is dropped or damaged, and the wireless communication between the collector and the concentrator fails due to weather changes or increased obstacles;

. Communication failure of all water meters under the concentrator: the concentrator is powered off, the GPRS antenna of the concentrator is dropped or damaged, and the built-in flow card is in arrears;

In view of the above situation of non-communication,

It can be handled as follows:

. On-site inspection of the water meter to check whether the water meter is damaged;

.Check the bus to see if there is an open circuit or a short circuit;

.On-site test the signal strength between the collector and the concentrator to see if the collector and the concentrator can communicate normally;

. On-site inspection of the equipment, whether the power supply is normal, check whether the flow card is in arrears, and check whether the downlink antenna and uplink GPRS antenna of the equipment are damaged;

In view of the situation that the communication is not communicated when the photoelectric direct reading remote water meter is used,

There are mainly the following reasons:

.The contact point between the photoelectric direct reading water meter and the bus is loose or oxidized;

.The external environment is harsh, resulting in unstable wireless communication between the concentrator and the collector;

.There are too many bus load meters, the bus specification fails to meet the requirements, the line is aging, etc.;

.The local mobile signal is unstable;