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Agricultural Irrigation and Drainage Scheme Based on ZigBee and GPRS Communication Mode
Source:Original | Author:Calio Huang of C&T RF Antennas Inc | Publish time: 2019-10-08 | 747 Views | Share:

Third, ZigBee + GPRS transmission network

The front end adopts ZigBee module, connects with the collector through 232/485 (terminal interface), ZigBee as a kind of wireless connection, can work in the transmission rate of 2.4 GHz. This type of equipment is generally a terminal node and completes the transmission and reception of information.

The ZigBee center node uses the ZigBee+GPRS module. This module integrates Zigbee+GPRS. The data received by the central node can be directly output to the server through the serial port (the distance between the front end and the server is short); it can also be received via GPRS. On the remote server to which the data is sent, the GPRS part adopts the international standard TCP/IP communication protocol, and both methods realize the data transparent transmission function. Eliminating the need for a GPRS module for each terminal requires only one central node and saves costs.

Fourth, the program features

1.  Local use of ZigBee wireless networking, low equipment investment costs, zero network fees for the entire project, saving a lot of expenses for the entire project, equipment configuration is simple, easy to understand, all modules can complete ad hoc network capabilities, fault self-healing, low Power consumption, stability;

2. The use of local large-area ZigBee networking converges remote centralized monitoring and management through a small number of GPRS wide area networks, which ensures the stability of the network and effectively reduces costs;

3, in addition to the RS232/485 communication interface, there are also built-in analog acquisition and digital I / O, the use of standard MODBUS communication can facilitate customers to expand the application directly on the device, saving control box data acquisition terminal costs;

4, designed for the field unattended, poor working environment and other occasions, especially for irrigation and other field monitoring system applications;

5. The wide-area transmission supports the public network, APN, VPDN, and other networking methods. It also supports active and standby centers, multi-centers, multiple activations, and off-line applications to allow customers to choose according to their own needs. It also supports remote configuration and facilitates later deployment. maintain.