Abstract

Based on the Z-Stack protocol Stack, with the CC2530 radio frequency transceiver chip and DHT22 digital temperature and humidity sensor as the core, this article puts forward a new implementation designed for the wireless temperature and humidity acquisition system on the basis of the Zigbee wireless communication technology. With the method of upper machine software by GUI, changes in temperature and humidity can be shown on the display terminal intuitively. The article mainly expounds the system structure design, temperature and humidity data acquisition process and graphical interface monitoring implementation. Experiments show that the wireless sensor system can make the real-time data acquisition of temperature and humidity, which has not only good efficiency and scalability, but also high reliability and excellent stability.

Highlights

  • With the rapid development of the electronic technology, computer technology and communication technology, the Internet of things technology arises at the historic moment

  • Z-Stack protocol stack is a ZigBee protocol stack developed by TI company and approved by the ZigBee Alliance, so it is widely adopted by many developers around the world

  • In the upper machine development environment, based on the Z-Stack protocol stack SampleAPP engineering programming development, the software design respectively realizes the respective communication function of the coordinator, the router and the terminal temperature and humidity collection, making them coordinate communication with one another according to the ZigBee communication agreement and implement the wireless ad-hoc network, the terminal graphical interface’s display function

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Summary

Introduction

With the rapid development of the electronic technology, computer technology and communication technology, the Internet of things technology arises at the historic moment. The research and application of wireless sensor network technologies, such as Bluetooth, GPRS, WIFI, and ZigBee, has promoted the rapid growth of a new generation of the sensor network technology. Combining the wireless network technology and Internet things technology will have a far-reaching influence on people’s life and various fields in production. Based on the ZigBee wireless sensor network technology and RF transceiver CC2530 chip as the core, on the basis of the underlying TI (Texas Instruments) company’s Z-Stack protocol stack, the article builds the ZigBee wireless sensor network (WSN) to monitor the wireless temperature and humidity. It can be used to collect many sensor parameters at the same time, including pressure, temperature, humidity, light, wind speed and wind direction [1]. With its stability, it can be widely applied in household, industrial, agricultural environment temperature and humidity monitoring field

Z-Stack protocol stack
The wireless sensor network
System structure of hardware design
The temperature and humidity sensor
Wireless communication implementation hardware
Software implementation
Computer software
The temperature and humidity data acquisition process
The coordinator program flow
GUI terminal display
Conclusions

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