STM32 Single Chip Microcomputer Research Articles

Hardware Design of Non-contact Voltage Detector Based on STM32 Microcontroller

In view of the time-consuming and labor-intensive problems of traditional contact electroscopes, this paper designs a hardware system of non-contact voltage detector based on STM32 single-chip microcomputer. The hardware design mainly includes signal amplification and conditioning circuit and power module, Wireless transceiver module, display and alarm module, etc. In order to reduce the distortion of electric field caused by human during measurement, a wireless transceiver module device is adopted, which has a simple structure and can meet the engineering requirements of the non-contact power inspection of the transmission line.

基于STM32单片机驱动的双液体棱镜

基于STM32单片机驱动的双液体棱镜

Design of Intelligent Air Purifier and Indoor Environment Improvement System

Smart homes have developed rapidly in the wave of informationization, and Internet of Things water purifiers and air purifiers have gradually entered the families of ordinary people. In order to improve indoor environment, realize the remote control and state monitoring of the water purifier, the intelligent water purifier system is constructed by using the related technologies of the Internet of Things, and the communication and interaction between the hardware device and the APP are completed through the combination of software and hardware programming. An air purification system that integrates infrared remote control and Android mobile phone control, uses STM32 single-chip microcomputer as the control core, and uses various sensors to intelligently detect the indoor environment by using information fusion algorithm. The air purifier adopts an ion decomposition purification method, and the design of the finless device can reduce the loss of the consumables, reduce the growth of bacteria, and have low noise during operation. Experiments show that the purifier can effectively purify indoor air and improve purification efficiency.

Design on Hybrid Test System for Dynamic Performance of Viscoelastic Damping Material and Damper

The viscoelastic material is one of most popular shock absorbing materials for mitigating vibrations of building structures due to earthquake. Its dynamic performance is affected by the temperature, the excitation frequency and the excitation amplitude. Therefore, in order to study the nonlinear dynamic performance of the viscoelastic materials, a hybrid test system using the electric exciter is proposed, in which the electric exciter is the actuator, MATLAB is used for the simulation of the numerical substructure and the communication between the upper computer and the lower machine, and STM32 single-chip microcomputer is used to control the work state of the electric exciter. Based on the equivalent force control method and the incremental PID control algorithm, a controller is designed to make sure the electric exciter produces accurate control forces to the nonlinear test component in the physical substructure. It can be shown from the test results that the developed whole hybrid test system is feasible and effective.

The Design of Motor Precision Positioning System Based on STM32 Single Chip Microcomputer

Aiming at the problem that the positioning accuracy of the motor is not high when the electric hoist vertical lifting industrial material is working, the PC + motion control card + digital AC servo motor positioning cost is too high. The system uses the STM32F103 core controller + incremental photoelectric encoder control scheme, which can locate the position of the material tray accurately. The test results show that the system has the characteristics of high positioning accuracy, stable operation and low cost, The average error is within 0.2mm, it has a certain guiding significance for industrial measurement, automatic control, electrical transmission and other fields of application.