In the circuit, add the compiled code to the program: Right-click on the 80C51 in U1, select the component, and then left-click to bring up the component's properties dialog box. In the Properties dialog, add in ProgramFile in the window. Hex file: Double-click "Open file icon" and select the file to be added: Add the 51code.hex file compiled in KeilC51 to the AT89S52 component model in the circuit. Click the Play button to view the circuit simulation result: Move the model of the pedal - the sliding resistance RV1. Observe that the motor model rotates with it, and the circuit simulation is consistent with the result of program design. Associated debugging of the system simulation circuit model Keil can also be associated with Proteus debugging, Keil as a software debugging interface, Proteus as a hardware simulation and debugging interface. (1) Copy the VDM51.dll file in the Proteus installation directory to the C51BIN directory of the Keil installation directory. (2) Edit the tools.ini file in C51 to add: TDRV1=BIN/VDM51.DL. (3) Open Proteus, draw the corresponding circuit, select useremotedebugmonitor in Proteus debug menu. (4) Enter Keil's project menu optionfortarget 'project name'. In the DEBUG option, select ProteusVSMMonitor-51Driver in the drop-down menu at the top of the right column and enter setting. The IP address of the camera is 127.0.0.1. The port number must be 8000. (5) Debug in Keil, and check the intuitive result in Proteus. . Simulation results Open the simulation circuit of Proteus, run the program, and adjust the position of the sliding rheostat that simulates the throttle pedal, so as to simulate the rotation of the stepper motor. It can be seen from the figure that when the “running†in the simulation control button in the lower left corner of the interface is in the pressed state, the motor rotor starts to move, and the position of the motor rotor changes with the change of the analog pedal contact point. . Through simulation, we can see that the entire system can implement design ideas well. Physical Experiment The purpose of the physical experiment is to detect the signal of the throttle pedal, and through the calculation of the electronic control unit, output to the drive chip of the stepper motor to complete the control of the stepper motor. The control system uses the incremental PID control according to the throttle pedal signal and the throttle opening signal to calculate the optimal desired throttle opening value, and calculates the number of pulses and drives the stepping by the drive chip according to the step angle. Motor. The debugged program is written into the microcontroller through software. The entire experimental device includes an electronic control unit (ECU), an electronic throttle valve assembly (including a stepper motor, a throttle sensor), and a throttle pedal (for the convenience of experimentation, the use of adjustable Resistive simulation of the throttle pedal) to form a simple experimental device. By changing the resistance of the adjustable resistor, observe the change in the angle of the stepper motor. The experiment proves that the circuit system of the program and architecture is correct: it can receive the voltage signal sent from the throttle pedal and can send data to the MCU; the MCU can calculate the number of pulses in time and drive the stepping motor to drive the chip to achieve Purpose. Conclusion The simulation of the electronic throttle control system was tested in the virtual environment of the single-chip microcomputer built by Proteus software and Keil. From the above simulation example, it can be seen that the use of Proteus as a microcontroller simulation experiment is fast, convenient, intuitive, and autonomous. The advantages of designing and verifying programs have achieved very satisfactory results. Therefore, in the future, the electronic throttle control system for simulation design and physical experiments, shorten the cycle, improve product quality, reduce development and design costs have a good application prospects. Metal plate: a material with a wide range of applications and innovative prospects Metal Plate,Metal Mold Holder Shuaigang Mould Base (Yixing) Co., Ltd , https://www.shmouldbase.com
Metal plate is a kind of material widely used in construction, manufacturing, electronics and other fields, and its excellent physical and chemical properties make it have an irreplaceable position in many fields. This paper will introduce the basic information of metal plate, application advantages and existing problems, innovative application scenarios and future development prospects, as well as the comparison of domestic and foreign research status and policy measures, in order to provide readers with a comprehensive understanding of metal plate.
First, the basic information of the metal plate
Metal plate is a sheet made of metal, with high strength, corrosion resistance, good electrical conductivity and other advantages. According to the different manufacturing process and use, the metal plate can be divided into many types, such as galvanized plate, stainless steel plate, aluminum alloy plate and so on. These different types of metal plates differ in appearance, performance and use, but all have a wide range of applications. For example, galvanized plate is mainly used in construction and manufacturing, while stainless steel plate is mostly used in the manufacture of high-end tableware and medical equipment.
Second, the application of metal plate advantages and existing problems
The application advantages of metal plate are mainly reflected in the following aspects: first, high strength, good load-bearing capacity and impact resistance; Second, corrosion resistance, can adapt to a variety of complex environmental conditions; Third, it has good electrical conductivity and can be used to manufacture electronic components and circuit boards. However, there are also some problems with metal plates, such as high cost and difficulty in processing. In addition, some metal plates may also cause pollution to the environment, such as lead pollution.
Third, the innovative application scenarios and future development prospects of metal plates
With the continuous progress of science and technology, innovative application scenarios of metal plates are also emerging. For example, metal plates can be used to manufacture 3D printing materials, electromagnetic shielding materials, nanocomposites, etc. These emerging areas have higher performance requirements for metal plates, and also bring new opportunities for the development of metal plates. In the future, metal plates are expected to make greater breakthroughs in lightweight, high performance, environmental protection and other aspects, and provide more powerful support for the development of various industries.
4. Comparison of domestic and foreign research status and policy measures
At home and abroad, the research of metal plates is very important, and new research results continue to emerge. In terms of policy measures, countries have also formulated different promotion measures according to their actual conditions. For example, some countries encourage enterprises to upgrade technology and update equipment through tax incentives and subsidies to improve the output and quality of metal sheets. In addition, countries have also formulated strict regulations and standards in environmental protection to reduce environmental pollution in the production process of metal sheets.
In general, metal plate as an important material, its application prospects are very broad. However, how to solve the problems in the production and use of metal plates, improve their performance and reduce costs, is still a problem that researchers in various countries need to pay attention to and solve. At the same time, with the continuous development of science and technology, the innovative application scenarios of metal plates will also continue to emerge, bringing new opportunities and challenges to the development of various industries.
V. Conclusion
Through the introduction and analysis of metal plate, this paper expounds the important application value of metal plate in construction, manufacturing, electronics and other fields and its broad prospect in the future development. At the same time, it also pointed out the problems in the production and use of metal plates and the direction of further research and improvement. It is hoped that the comprehensive understanding and analysis of metal plates can provide useful reference and enlightenment for researchers and enterprises in related fields.
July 14, 2024