The LORA module used in the lithium battery-powered water meter setting can save energy when 100 water meters are installed in one corridor.

一沙一世

The LORA module used in the lithium battery-powered water meter setting can save energy when 100 water meters are installed in one corridor. [Copy link]

The LoRa module used in the lithium battery-powered water meter setting, when there are 100 water meters installed in a corridor, when the LoRa base station communicates with one of the meters, will it cause the power consumption of the other 99 water meters to increase? If so, how to avoid this situation?

LeoMe

According to the low-power communication method of lora, each meter wakes up for a short period of time in the cycle to listen for a synchronization header. If there is a synchronization header, it will continue to receive data and wait for the valid data. As far as I remember, this operation does not distinguish addresses, so theoretically, every time you read the meter, all the meters at this frequency will be awakened for a period of time until the data is received to determine the meter address. As for the solution, 100 meters are divided into 10 frequency points, and 10 meters are in each frequency point, so that only 10 meters will be awakened at the same time each time.

freeelectron

fdma and tdma can solve the problem you mentioned

Gen_X

freeelectron posted on 2023-8-11 13:19 fdma and tdma can solve the problem you mentioned

That's right, this technology has many applications.

The only drawback is that when some points are accidentally disconnected, they need to be restored with regular strategies, otherwise————

led2015

Take certain shielding measures in the corridor, such as using metal shielding boxes, shielding isolation panels, etc.

chineseboyzxy

Change the communication protocol, send the address first, and continue to sleep if the address is wrong. Or, like WIFI, there are dozens of channels, use channel partitions, and then address communication.