The Hardware Design And Implementation Of House Danger Alarming System Which Based On Wechat

Smart home developing with the continuous improvement of people’s living standard, basically focus on health, environment, home, wear and so on. Now, although there are many different kinds of smart home, which just focus on the high-grade villas and cottages, not into ordinary families, the reason are the consumers’ unawareness of the smart home, and its purchase price, maintenance cost and practical using, which let consumers stay away. Our laboratory sets up a team to develop house danger alarming system, which has a number of characteristics such as simple operation, low cost, strong practicability, and the alarm mode changing from GSM message to Wechat which is widely used, this can meet the basic need of the consumers.According to users’ requirements, this paper designs a kind of house danger alarming system which is a collection of indoor humidity and temperature measurement, hazardous gas detection, image information collection and WeChat platform which based on the Android. This system is divided into two parts, including hardware modules and Wechat client. In this paper, we study the design of hardware and these sensors’ driver program, including:using 32-bit microcontroller STM32F103ZET6 as the core, collecting data of the above sensors, display all data on the TFT color screen, and realize data transmission between hardware module and Wechat client through internet. Detect house danger, and send alarm information to users in real time to protect the safety of personal and property of the user.This paper gives a complete design of this system at first, and make a detailed discussion on various sensors and components selection. Second, completing the hardware schematic circuit design, PCB layout and welding, hardware debug, and discussing each module circuit in detail. Finally,used RealView MDK development tool to realize the driver program design of wet temperature, smoke, gas, natural gas sensor and camera, and illustrated the workflow of this system and every modules. Through the actual test, this hardware design of house danger alarming system with the characteristics of working well, strong reliability, low system cost, simple to use and so...