Wireless Communication Solution Wireless Communication Solution 1. System Overview Xi\'an Datai Electronics Co., Ltd. produces DTD110 series modules and wireless data transmission modules, which can form a short-distance wireless communication network with a distance of hundreds of meters or even thousands of meters. This product is a military product, which is not affected by factors such as temperature, pressure, and strong electromagnetic fields. It has strong anti-interference ability and can operate in relatively harsh environments. It can work for a long time and operate stably. 2. System Composition 1. System Structure Diagram The wireless communication system consists of DTD46X wireless data transmission modules and DTD110 series modules. Among them, the DTD46X wireless data transmission module is connected to the monitoring host and mainly provides data reception services. The DTD110 series modules are connected to sensors or transmitters and mainly provide data acquisition and transmission services. The DTD110 series modules are composed of AD conversion modules and DTD46X wireless data transmission modules. The data transmission and reception frequency is 433MHZ (free frequency band), and the wireless communication solution is shown in Figure 1: 2. System working mode Figure 1 The sensor inputs the output analog signal into the DTD110X module, and the DTD110X series module delivers its own stored data to the DTD46X wireless receiving module wirelessly after analog-to-digital conversion. III. Protocol description Device side: DTD110FB_1 Wiring instructions Refer to the CD: DTD110 series wireless telemetry and remote control RTU user manual V3.2.pdf Control side: TTL level serial port parameters: 9600bps 8 N 1 Communication command: Use hexadecimal to represent data communication as query mode. First, the host sends query commands continuously until the host receives the command replied by the slave. The host establishes a connection with the slave, and the slave reports data,...
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