This paper describes a power wireless meter reading system solution based on SIM100 GPRS wireless data transmission module and LR100 control processing module. The scheme realizes data transmission and intelligent control of the power meter reading system through the GPRS network, and uses GSM as a data backup channel to solve the data loss or delay caused by the instability of the network. The industrial application of GPRS network solves the communication requirements of the power system for the intelligent meter reading control system. Compared with the traditional private network, its coverage and cost are more suitable for industrial applications. This paper proposes the SIM100 wireless transmission module SIM100 and Wuhan Lanrui LR100 control module GPRS wireless meter reading system implementation program. The design of the system takes into account the data communication requirements of the meter and meter reading server (data server). The meter and meter reading server adopts the limited transparent transmission mode, that is, the LR100 intelligent control module performs limited filtering and analysis on the data to avoid redundancy. And distinguish the instruction information. The communication method adopts the wireless communication link established by the SIMCOM SIM100 module through the mobile communication gateway, and can perform data transmission based on TCP/IP and UDP/IP. The fault-tolerant mechanism based on LR100 and the GSM alternate channel mode compensate for the impact of the instability of the GPRS network. Hardware implementation 1. LR100 module Achieve limited transparent transmission of data and intelligent control of the meter. The module receives the data arriving by the server through the data transmission module. After analysis, the query command is transmitted to the meter via the RS485 interface, and the control command intelligently controls the meter by controlling the I/O. After receiving the query command, the meter feeds back relevant information. After the information arrives at the data processing module, the module processes the parameters according to the pre-configured parameters. The data that needs to be sent back to the server is transmitted by the data transmission module, and intelligent control and alarm processing are performed according to the feedback of the meter. 2. Three serial port assignments Serial port 1 - Provides parameter configuration and configures the parameters of the system by communicating with the configuration software on the PC. It mainly sets the IP address, port number, and communication protocol (TCP/UDP) of the meter reading server to provide parameters for initializing the LR100 system software. Serial Port 2 - Provides communication to the SIM100 GPRS module and communicates with the module via standard AT commands and extended commands. The hardware interface of the module is connected to the LR100 expansion board. This enables data transmission (based on SMS or GPRS) transmission and reception to the SIM100 GPRS module. Serial port 3 - Provides selection for RS232/485 communication, which mainly realizes data communication to the meter and realizes the data response of the terminal. 3. GPIO GPIO provides GPIO to realize intelligent control of the meter, and realizes intelligent processing such as alarm and power-off of the meter through the control of the intermediate circuit. Due to the GPIO's port abundance and simple program control implementation, subsequent expansion is more convenient. OVNS 800 Puffs Vape is so convenient, portable, and small volume, you just need to take them ovns 800 puffs vape bar,ovns 800 fuffs vape pen,ovns 800 puffs vape disposable,ovns 800 puffs vape starter kit,ovns 800 puffs vape device Ningbo Autrends International Trade Co.,Ltd. , https://www.ecigarettevapepods.com
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