Introduction to the working principle of remote electromagnetic water meter

August 08, 2023

The remote electromagnetic water meter system is divided into three layers, which are the field device layer, the network transmission layer and the application layer. The field equipment layer is mainly composed of a base meter, a large meter sensing device and a large meter transmission end station, which are installed in the water meter well, wherein the sensing device adopts a counting device capable of measuring backflow, and is installed on the base table to complete the water volume. The data (including the forward water volume and the reverse water volume) is converted into a pulse signal, and then the transmitting end station processes and stores the pulse signal, and periodically sends the stored data through the GPRS network; the network layer uses the mobile wireless network to implement the transmitting end. The connection between the station and the application server on the Internet; the application layer mainly realizes the function of receiving, storing and sharing large table words, and the water quantity analysis and statistics function of key users.
The design and implementation of the remote transmission electromagnetic water meter transmission station is the core of the large-scale remote transmission system. It is not only responsible for the collection of water meter words, but also responsible for the operation of data acquisition, on-site storage and package transmission. At the same time, in order to facilitate setting parameters of the end station equipment, it should have wireless communication with the handheld infrared meter. The transmission end station mainly consists of a table word acquisition module, an arithmetic storage module and a GPRS communication module.
In order to ensure that the remote transmission electromagnetic water meter transmission end station can collect the water meter data, especially the forward and reverse data of the water meter, the large-diameter screw-wing water meter is modified, and the water meter can be completed by measuring the backflow counting device on the water meter. Detection of steering steering.
The processor of the remote electromagnetic water meter collects the data according to the acquisition frequency of the end station initialization design. When the acquisition data interval arrives, the processor reads the data in the counter, then performs the operation and storage operation, and then enters the sleep mode, and the front end The acquisition data unit continues to work. The data calculation rules of the processor mainly depend on the installation position of the sensing unit in the previous stage. If the sensing element is installed on the X0.01 wheel, the counter data multiplied by 102 is 10m3 of water. Storage is to generate a data table in the memory chip, recording the data transmission time, forward flow, reverse flow, no flow alarm data. This type of data is used for GPRS communication transmission of the end station.

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