The Research of Tunnel Roof Separation Monitoring Device Based on STC12C5A

2014 ◽  
Vol 556-562 ◽  
pp. 2740-2743 ◽  
Author(s):  
Xue Zhe Li ◽  
Yang Cao ◽  
Yan Wei Qi ◽  
Quan Ming Gao ◽  
Wen Feng Wu

Tunnel roof separation monitoring is an important research content of tunnel supporting technology, it is of great significance to guarantee the safety of mine production. The traditional detection methods of roof separation have disadvantages of low precision, poor reliability, high cost, and the comprehensive analysis of measurement results is difficult. In the paper, a roof separation monitoring device based on STC12C5A is proposed. It has the core of STC12C5A single-chip microcomputer, and realizes the accurate measurement of displacement by using the fine drag-rope displacement sensor, and realizes the data communication and sharing by using bus interface. The device can achieve real-time, reliable monitoring of roof separation condition and also can make pre-caution to the possible production accident.

2013 ◽  
Vol 385-386 ◽  
pp. 464-467
Author(s):  
Zhi Xian Zhang ◽  
Hai Zhen Mi ◽  
Zhi Hong Liu ◽  
De Gang Sun

Traditional fighter electrical boxes detection system can not be efficient and accurate implementation in detecting electrical boxes, in order to achieve accurate detection of the electrical box, this paper had designed a detection device consists of upper machine and lower machine system. The system is based on the C8051F120 single chip microcomputer as the core. It is controlled by a machine on and off of the FPGA to drive the relay array to detect the safety status of electric box, through the communication between upper machine and lower machine to display the measurement results. The integrated test system can detect various fighter electrical control boxes, which overcomes the shortcoming of a test equipment in the past can only test a class of products, improves test accuracy and efficiency.


2013 ◽  
Vol 791-793 ◽  
pp. 1921-1924
Author(s):  
Ke Ling Luo ◽  
Xu Dong Li ◽  
De Rui Song ◽  
Ping Wang ◽  
Jiao Fu ◽  
...  

The garbage salvage ship is made from polystyrene plastic as hull framework and STC89C52 single-chip microcomputer to control the core, and consists of DC gear motor, photoelectric sensor, power circuit and other circuits. The system uses STC89C52 to control the boat to move forward, backward or turn through the I/O port. Tracing is finished by infrared obstacle avoidance sensor E18-D80NK. Working manner of the infrared obstacle avoidance sensor E18-D80NK was introduced and its application scheme based on STC89C52 single-chip microcomputer in the control system of garbage salvage ship was put forward.


2014 ◽  
Vol 971-973 ◽  
pp. 1076-1080 ◽  
Author(s):  
Quan Sheng Yu ◽  
Mei Ying Duan ◽  
Tian Shun Zhang ◽  
Hong Gang Wu ◽  
Shao Kun Lu

Considering the current situation that the temperature control systems in market have the general disadvantages of complicated structure, high power consumption and tremendous cost, a new greenhouse temperature supervising system is designed, with a Arduino Mega 2560 single chip microcomputer as the core, XBEE as the short distance wireless transferring tools, and with function of displaying information in computers and remote control. The core component of this system is the Arduino software-hardware open source platform, which is currently popular in the market. This platform embraces the excellence of stability, low power consumption, cheap cost and easy operation as its advantages and selling points. XBEE can constitute the mesh network, each module of which can supplied as the route node, coordinator and terminal node. This system can achieve the functions of collecting data from sensors while is capable of displaying these data in the computers and put them under the network remote control. Easy to install, it can simultaneously achieve network monitoring several greenhouses. Enormous convenience to production inside the greenhouse is fulfilled due to these mentioned features as well, which makes it suitable to the small scale agricultural production.


2013 ◽  
Vol 706-708 ◽  
pp. 1124-1127
Author(s):  
Hai Xia Li

Because the car headlamp light intensity is too large and it leads to accidents, This paper is based on the initiative to reduce the light intensity of their vehicles according headlights glare or close the high beam and open the lamp method, to achieve the purpose of the glare. The system is AT89C51 microcontroller as the core control, use of photodiode sensor to induction opposite the car headlights light intensity , when opposite car headlights light intensity up to a certain value, photodiode get a signal to the microcontroller ,and then microcontroller sends a signal, to control buzzer sound or not. When the buzzer sounded, using DAC0832 chip to control the brightness of the light emitting diode or control the light on and off and low beam enabled. When enabled for dipped beam, has been more than the antiglare range; after the scope enabled high beam, in order to achieve the anti-dazzle cycle. Through practice, the system has reached the anti-dazzle purpose and has practical value .


2015 ◽  
Vol 727-728 ◽  
pp. 819-822
Author(s):  
Min Zhu

Design the circuit of vision protector based on 8051 single chip microcontroller. The core of hardware is the 8051 single chip microcomputer, function circuit including sensor auxiliary sit straight alarm circuit, light alarm circuit, timing alarm circuit and alarm circuit. Have a basic understanding of SCM, then design each functional circuit, development software system, complete the design.


2012 ◽  
Vol 588-589 ◽  
pp. 1401-1404
Author(s):  
Zhi Yuan Cai ◽  
Hong Yuan Ai

An intelligent controller with capable communication for control and protective switching device (CPS) based on Profibus fieldbus was designed. The system with the single chip microcomputer as the core realized the function of measuring, protection, controlling and communication between CPS and host computer by Profibus fieldbus. The design could not only realize real-time monitoring for running state of multiple electromotor but also set the protection parameters of CPS and alarm function online by interface, which made CPS have remote monitoring function.


2014 ◽  
Vol 1070-1072 ◽  
pp. 1572-1575
Author(s):  
Qing Zhuang

As the living standards of people improve continually, commercial behavior is becoming more and more modernized, people also put forward new requirements for the speed and accuracy of goods measurement. This paper designs a weighing system of digital electronic scale which is similar to the MCU simulation, and gives the design diagram, hardware composition and software system. This system takes the 51 single chip microcomputer as the core, the main components are the dedicated 24 bits serial A/D conversion chip HX711, cantilever type resistance strain sensor, the four digital tube display. This design uses the dedicated 24 bits serial A/D conversion chip HX711, which has high resolution, simple peripheral interface, and occupies less I/O port, etc.


2014 ◽  
Vol 705 ◽  
pp. 204-207
Author(s):  
Shu Fen Qi ◽  
Kun Zhang

Accurate measurement of the drilling mud resistivity is very important to analysis of drilling parameters. Therefore, it is necessary to produce an accurate measurement system. The resistivity measurement system which is introduced in this paper adopts STM8s single chip microcomputer as the control center. It sends control commands via I2C technology and completes the measurement of resistivity using AD5933. Then data is sent to the MCU. When the MCU deals with the data, LCD screen displays measurement results. The system has so many advantages: low power, portable, real-time measurement etc. It provides a reliable basis for analyzing the parameters of drilling.


2014 ◽  
Vol 1082 ◽  
pp. 495-500
Author(s):  
Meng Yi Zhang ◽  
Yi Zhang

A control system of testing machine for rock breaking is developed based on Atmega 16 single-chip microcomputer, which acquires analog signals by a pressure sensor, a displacement sensor and a torque sensor. The system converts the signals into digital signals by means of A/D conversion and data processing, and displays them on the LCD screen. The parameters on the testing machine, such as pressures, displacements and torques, can be achieved in real time in the system. Then they are analyzed to obtain rock breaking characteristics. It is shown by experiment that the system meets the control requirements of the testing machine for rock breaking.


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