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Control method of action units in environment test system

An action unit and environmental test technology, applied in the direction of electrical program control, program control in sequence/logic controller, measuring device, etc., can solve the problems of wasting energy consumption, etc., and achieve reduction of energy consumption, huge economic benefits and social benefits , to avoid the effect of fluctuations

Inactive Publication Date: 2015-10-21
广州市庆瑞电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defect of wasting energy consumption in the environmental test system described in the prior art, the present invention provides a control method for the action unit in the environmental test system with flexible and diverse control objects and energy saving

Method used

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  • Control method of action units in environment test system
  • Control method of action units in environment test system
  • Control method of action units in environment test system

Examples

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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a control method of an action unit in an environmental test system, the method includes the following steps:

[0034] S1: Set the control object, control type, control low limit RANGE LOW, control high limit RANGE HIGH and control direction BAND, the control objects are temperature, humidity, light intensity, ultraviolet intensity, carbon dioxide concentration, carbon monoxide concentration, oxygen concentration, Hydrogen sulfide concentration, nitrogen concentration, oxygen content or air pressure, the control type is the current set value SP, measured value PV or target set value TSP of the control object, and the control direction BAND is INB or OUTB;

[0035] S2: if figure 2 As shown, when BAND=INB, if the current control type is between the control low limit RANGE LOW and the control high limit RANGE HIGH, the IS will act, otherwise, the IS will not act;

[0036] Such as image 3 As shown, when BAND=OUTB, if the current control type i...

Embodiment 2

[0051] This embodiment takes humidity control as an example to illustrate the compressor control method of the present invention, Figure 4-7 It is the sequence diagram of the IS applied to the environmental test system by the method of this embodiment. The operating mode of the environmental test system in this embodiment is a program. The first paragraph to the fifth paragraph in the figure represent different operating stages of the system, and the different operating stages The operating parameters of the system are automatically set by the program. The lower limit of humidity control, RANGE LOW, is set to 30.0%, and the upper limit of humidity control, RANGE HIGH, is set to 50.0%. IS is ON in the figure, indicating that IS is working, and IS is OFF, indicating that IS is not working. Work.

[0052] Figure 4 In , the control type is set to the measured value of humidity PV, the control direction BAND is INB, the DELAY TIME is 0, and the dead band HYS is 0.5%.

[0053] ...

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Abstract

The invention provides a control method of action units in an environment test system. The units are controlled to act within the range and out of the range, and on-off of the action units is controlled according to the action modes. Control types and the controlled action units are flexible and diverse. The control types include current set values SP, current measuring values PV or current target set values TSP of the temperature, humidity or air pressure and the like, and the control types are independent and do not interfere with one another. A compressor and other working units can be reasonably utilized, the working units can run or stop at the appropriate time, the energy consumption is reduced, and fluctuation of a controlled target is avoided. The control method can be widely applied to the field of temperature and humidity environment control, a large amount of energy consumption can be saved, and huge economic benefits and social benefits are brought to the society.

Description

technical field [0001] The invention relates to the field of environmental test system control, and more specifically, relates to a control method for an action unit in the environmental test system. Background technique [0002] High and low temperature environmental test equipment is often used to conduct environmental adaptability research tests on material products, that is, product environmental engineering theory. In my country, it is a new discipline that studies the adaptability of products to the environment and improves the ability of products to withstand harsh environments. Various materials, mechanical and electrical parts, and complete machine products will be subject to various environmental stresses (such as temperature, humidity, air pressure, solar radiation, wind, rain, snow, mold, salt spray, etc.) during their production, storage, and use. )Impact. Environmental simulation test equipment is a necessary test equipment for carrying out various environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00G05B19/04
Inventor 李首慧
Owner 广州市庆瑞电子科技有限公司
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