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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 | 745 Views | Share:


I. Description of the status quo

Lack of rain and water is a major bottleneck for agricultural development. However, most of the farmland nowadays uses wired methods to transmit terminal data and control instructions. In this way, backward management methods are not only expensive in terms of system cost, but also cause troubles in cabling and maintenance. The cost is also high, and the networking mode is less flexible.

Second, demand analysis

At present, most domestic micro-irrigation systems use wired methods to collect and transmit public opinion information. This method not only makes it difficult to construct on-site wiring, but also is inconvenient for management and maintenance, and the networking mode is not flexible. In addition, if the area of the farmland is large, the cost of wiring costs is also more expensive than the wireless method.

Another proposed use of GSM / GPRS, CDMA, and other wireless communication module to transfer information, but GSM / GPRS wireless communication module prices are relatively high, the use of charges, and need to rely on public communications network, taking into account the farms are in remote areas, multiple It is not feasible to receive signals, and some point-to-point short-range wireless communication modules are proposed. The network performance is poor, and large-scale networking is not possible.

Sixin Communications uses ZigBee, a rapidly developing new communication technology, together with the original IP modem, to become a ZigBee wireless communication product with GPRS. With the support of the public communication network as the convergence point, the low-power consumption and wide distribution area are required. In the crop planting area, the networking is convenient, and the network construction cost is low. It is suitable for use in the micro-irrigation measurement and control system. It is used to complete the collection and transmission of public opinion information and to control the solenoid valve action, thereby completing the entire micro-irrigation control process.

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.

V. Program Benefits

With the development of related disciplines such as the Internet of Things and industrial wireless communications, agricultural irrigation and drainage has realized the intelligence of data monitoring, transmission, management, early warning, and emergency command by citing new products and technologies in related fields. Sixin Communication is a backbone enterprise in the field of wireless communications in China's Internet of Things. Over the past few years, it has been closely following the pulse of the development of the Internet of Things industry, and has conducted in-depth research on the application of industrial wireless communication products in the field of water conservancy, hydrology, and smart agriculture, and gradually formed a product-based basis. , To provide industry customers with the professional operating characteristics of system solutions, to help customers achieve "wisdom, standards, security, reliability," the goal of wireless communications.

The agricultural irrigation and drainage scheme based on ZigBee+GPRS communication network has the advantages of low project investment cost, low operation cost, simple network maintenance, high remote control efficiency, and no superior upgrade. After the project is implemented, the system management and management benefits and benefits Obvious economic benefits.

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