Virtual measuring and controlling system
A measurement and control system and control system technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of complex signal acquisition structure and high cost, and achieve the effect of simple and easy debugging process, simple structure, and reduced investment.
Inactive Publication Date: 2012-11-14
JINHUA VOCATIONAL TECH COLLEGE
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Problems solved by technology
[0004] The present invention provides a practical virtual measurement and control system with a low-cost signal acquisition module in order to solve the disadvantages of complex signal acquisition structure and high cost in the prior art
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Embodiment
[0027] A kind of virtual measurement and control system of this embodiment, see figure 1A virtual measurement and control system 1 is composed of an interface circuit 2 and a virtual simulation device 3. One end of the interface circuit 2 is connected to the measured control system 4, and the other end of the interface circuit 2 is connected to the virtual simulation device 3. The virtual simulation device 3 includes a PC and 3D virtual software.
[0028] see figure 2 , the interface circuit 2 includes a processor 5, an analog-to-digital conversion circuit 8, a duty ratio measurement circuit 7, an input amplification adjustment circuit 9, a T-type conversion circuit 10, a 24-bit AD conversion circuit 11, an output amplification adjustment circuit 12, a digital-to-analog conversion Circuit 13, switching value conversion circuit 14, communication interface 15 and terminal 6; the signal output end of the measured control system 4 is respectively connected to the input of the du...
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The invention relates to a virtual measuring and controlling system, and aims to provide a practical virtual measuring and controlling system with a low-cost signal acquisition module. The system comprises an interface circuit and virtual simulation equipment, wherein the virtual simulation equipment is connected with a system to be measured and controlled through the interface circuit; and the interface circuit comprises a processor, an analog-digital (AD) conversion circuit, a duty ratio measuring circuit, an input amplifying and adjusting circuit, a T-shaped conversion circuit, a 24-bit ADconversion circuit, an output amplifying and adjusting circuit, a digital-analog conversion circuit, a switch conversion circuit, a communication interface and a terminal. The invention provides the system for performing system debugging by using virtual equipment without expensive controlled equipment, so that a debugging process is simple and practical and the efficiency of product development is increased; and a PWM (Pulse Width Modulation) signal, an analog quantity signal and a switch signal can be processed in the signal acquisition circuit, I / O (Input / Output) interfaces of the processor are reduced, the system has a simple structure, and equipment cost is reduced.
Description
technical field [0001] The invention relates to the field of computer virtual testing, more specifically, the invention relates to a virtual measurement and control system for virtual detection and control of a control system. Background technique [0002] The general process of measurement and control electronic product development: scheme design→hardware design→software design→system debugging→technical document writing. Among them, system debugging is one of the key links in the development of measurement and control products. Usually in the debugging process, physical objects are required for debugging. For example, the development of electric vehicle controllers requires electric vehicles, electric vehicle operating sites, batteries, etc. to carry out debugging. The electric heating furnace temperature control system requires electric heating furnaces, AC power supply, etc. Debugging, because it is affected by the operating conditions of the equipment during debugging...
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IPC IPC(8): G06F17/50
Inventor 马汝星陈海荣龚永坚余红娟
Owner JINHUA VOCATIONAL TECH COLLEGE