Design and research of remote intelligent meter reading system based on GPRS technology

Abstract: The design and research information of remote intelligent meter reading system based on GPRS technology is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Abstract: Intelligent community is an important part of national information infrastructure. Based on GPRS and Internet of Things technology, the remote intelligent meter reading system is realized. The upstream communication of the acquisition terminal adopts the ZigBee wireless sensor network technology, and the data is carried out through the network and the data concentrator. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the design and research article details of the remote intelligent meter reading system based on GPRS technology. Smart community is an important part of national information infrastructure. Based on GPRS and Internet of Things technology, the remote intelligent meter reading system is realized. The upstream communication of the acquisition terminal adopts ZigBee wireless sensor network technology, and the data exchange between the network and the data concentrator realizes the remote transmission of the meter data. The system has the functions of automatic metering, charging and real-time monitoring of water, electricity, gas and other resources, and can accurately realize the collection, storage, display and transmission of user data, with reliable operation and certain application and promotion value. Commonly known as water, electricity and gas meters in modern households“three tables”. The traditional household meter reading not only brings inconvenience to users, but also takes up a lot of human resources, resulting in the problem of difficulty in charging; the emerging IC card technology has completely solved the above problems, but it is not easy for users to purchase.“water, electricity, gas”It is not very convenient, and at the same time, the user's usage information cannot be communicated in real time. Therefore, intelligent meter reading and safety monitoring have become the development direction of the industry. To carry out intelligent meter reading and safety monitoring, it is necessary to build a network to transmit data. Traditional data transmission mainly includes digital radio, dial-up, satellite communication auxiliary dedicated line, etc. These transmission methods have problems such as small coverage, poor real-time performance, and high investment and operating costs. The development of GPRS technology and Internet technology provides a broad platform for data transmission and data network management in the fields of industrial monitoring, telemetry and remote control. 1. The system construction system requires a data center connected to the Internet, and“three tables”Or the data collector connected to the equipment to be monitored and the microprocessor with built-in GPRS module. The data acquired by the collector is transmitted to the microprocessor, and the microprocessor logs in to the GPRS network through the GPRS module and transmits the data to the data center on the Internet through the CGSN gateway, thereby completing the data transmission. The system consists of five parts, including database server, data service center, operation terminal, concentrator and collector. The system structure is shown in Figure 1. The collector is located in the information center of the residential area, the customer's“three tables”Using the data, the data is firstly transmitted to the concentrator located in the cell information center through the ZigBee technology, and the concentrator is then connected to the GPRS transparent data transmission terminal through the RS232 interface. Through the GPRS transparent data transmission terminal built-in embedded processor to process the data, encapsulate the protocol and send it to the GSM network, and transmit it to the database server through the GPRS network to achieve“three tables”Real-time online connection of data and data center systems. 2. Technical route According to the functional requirements of the system, the hardware system should include: user three-meter data acquisition and display module, building unit data centralized module, wireless data transmission network composed of ZigBee, and wireless data transceiver module.“client”It is composed of wireless data transceiver module, RS-232 serial port circuit, and upper management computer.“data center”two parts.“client”and“data center”Data exchange is realized through a wireless network composed of wireless transceiver modules. 2.1 Data acquisition and display module The data acquisition and display module includes three forms: user electricity consumption collection and display circuit, user water consumption collection and display circuit, user gas consumption collection and display circuit. This system adopts the single-chip electric energy metering chip ADE7751 introduced by ADI Company and the all-electronic multi-rate electric energy meter designed by microprocessor to realize the data collection of users' electricity consumption; The digital water meter designed by the intelligent vortex flowmeter sensor and the microprocessor and the digital gas meter designed by the pulsed intelligent vortex flowmeter sensor and the microprocessor realize the requirements of data collection, storage, calculation, display, transmission, etc. . 2.2 Unit concentrator module In order to facilitate the realization of wireless centralized reading function, this design adds a unit concentrator to each unit of each building. The wireless data transmission network composed of the unit concentrator and each data acquisition component through ZigBee is used to realize each customer“three tables”Timing reception and storage of data, it is“three tables”A core part of the wireless transceiver module. The use of the unit concentrator greatly simplifies the complexity of the wireless data transmission network and reduces the cost of system equipment.

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