CN103076829A - Programmable multifunctional temperature and humidity control system and method - Google Patents
Programmable multifunctional temperature and humidity control system and method Download PDFInfo
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Abstract
The invention discloses a programmable multifunctional temperature and humidity control system and a programmable multifunctional temperature and humidity control method. The system comprises a temperature and humidity sensor, a temperature and humidity acquisition module, a signal input module, a signal output module and a central control module, wherein the temperature and humidity sensor is connected with the temperature and humidity acquisition module; the central control module comprises a programmable controller and a man-machine interface; the man-machine interface is connected with the programmable controller; the programmable controller is connected with the temperature and humidity acquisition module; the signal output module is connected with the signal output module through the programmable controller; the temperature and humidity acquisition module is used for acquiring a temperature value in the temperature sensor, analyzing, processing and transmitting to the central control module for performing data processing to obtain a temperature and humidity; and needed temperature and humidity are adjusted in a way of regulating output by adopting PID (Proportion Integration Differentiation). According to the programmable multifunctional temperature and humidity control system and the programmable multifunctional temperature and humidity control method, programming can be performed automatically as required, stepped temperatures and humidity are set at different time intervals for testing continuously, and temperatures and humidity are controlled accurately.
Description
Technical field
The present invention relates to the intelligence control system art, refer in particular to a kind of programmable Multifunctional warm moisture control system and method.
Background technology
Constant temperature humidity chamber is used for test electronic product, electronic component, hardware products, industrial materials etc., and the function situation under certain temperature and humidity environment is such as test computer mainboard, mobile phone, display etc.In the operational process of constant temperature humidity chamber, the control of humiture is particularly important, each parts in chamber need to be optimized the design, wherein the control of the precision of the design of temperature and humidity control system and humiture also is extremely important ingredient, in temperature and humidity control system, prior art adopts common temperature and humidity separately to test or adopts the Temperature Humidity Sensor direct-detection to the test humiture, yet the measurement range of this type of Temperature Humidity Sensor is little, the scope of application is also less, particularly in the test environment of subzero temperature, the accuracy of this Temperature Humidity Sensor tends to occur mistake, even a lot of Temperature Humidity Sensor can damage under low temperature and high temperature.The Main Function of constant temperature humidity chamber is exactly to be beneficial to marketing and market orientation etc. in order accurately to test out product various performance under specific environment, tests out simultaneously the actual performance of product, guarantees the security performance that product uses.This shows that it is particularly important that the temperature and humidity control system of constant temperature humidity chamber seems.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its fundamental purpose provides a kind of Temperature and Humidity Control precisely and can programme voluntarily as required and set programmable Multifunctional warm moisture control system and the method that the stage humiture is tested continuously in the different periods.
For achieving the above object, the present invention adopts following technical scheme: a kind of programmable Multifunctional warm moisture control system, include for the Temperature Humidity Sensor of surveying humiture, be used for gathering the humiture collection module of Temperature Humidity Sensor temperature, be used for gathering the signal input module of real time environment data, be used for sending the signal output module of steering order, and the middle control module that the data of modules are processed, this Temperature Humidity Sensor is connected with the humiture collection module, should middle control module include programmable controller and man-machine interface, this man-machine interface is connected with programmable controller, this programmable controller is connected with the humiture collection module, and this signal input module is connected with programmable controller with signal output module.
As a kind of preferred version, described signal input module includes digital signal load module and A/D module, this signal output module includes digital signal output modules and D/A module, this digital signal load module is connected with Programmable Logic Controller with digital signal output modules, and this A/D module is connected with programmable controller with the D/A module.
As a kind of preferred version, described programmable controller includes and adds thermal control units, humidification control module, freezing control module, lighting control unit, alarm unit and protected location.Wherein this adds the humiture that thermal control units, humidification control module and freezing control module are used for regulating system, this lighting control unit is used for the instruction unpack that sends by man-machine interface and closes illuminating lamp, this alarm unit is used for reporting to the police when abnormal conditions occurring, so that the experimenter in time pinpoints the problems, deals with problems; This protected location is used for when emergency occurring, and this protected location is in time made a response, and control is cut off the electricity supply and made relevant protective reaction.
As a kind of preferred version, described programmable controller also comprises the equipment automatic checkout system, the System self-test unit of checkout equipment self health status.This System self-test unit is mainly used in the self check of the correlation parameters such as system power and each circuit pressure of refrigeration system, can detect intuitively the actual value of system power, and show by man-machine interface, this current actual value changes within the specific limits, can find whether electric current is unusual according to changing, need equipment is entered maintenance, each circuit pressure of this refrigeration system detects can check in time whether snow kind of pressure is normal, in man-machine interface, also can show, when its super scope of inspection, can in time pinpoint the problems and be repaired, prevent trouble before it happens.
As a kind of preferred version, described Temperature Humidity Sensor adopts PT100 wet and dry bulb temperature sensor; The temperature acquisition analysis degree of described humiture collection module is 0.01 ℃.Be that the minimum temperature value that can offer an explanation is 0.01 ℃ in the humiture collection module, the temperature range that this PT100 wet and dry bulb temperature sensor cooperates humiture collection module to detect is that-100 ℃ ~ 325 ℃, humidity range are 0 ~ 100%, and this wet and dry bulb temperature sensor does not damage in-100 ℃ ~ 325 ℃ temperature range.
As a kind of preferred version, described middle control module further includes the information storage unit, and this man-machine interface is connected with one for data copy out the USB interface of circumscribed USB storage device with information storage module; Described man-machine interface also is connected with the network interface that can be connected with the internet, can realize Long-distance Control.
As a kind of preferred version, described man-machine interface is touching display screen, but this man-machine interface includes the operating and setting unit that can enter the operating and setting picture, the formula setup unit that can enter the formula related setting, clicks monitoring image unit, the curve display unit that can enter real-time curve and history curve picture that can enter fast each data interface, the warning resume unit that can check All Alerts zero-time and multiple extensive time and alarm content and access arrangement daily servicing and reservation starts system's setting unit of setting and transferring data.
A kind of programmable temperature/humidity control method, at first, this humiture collection module is carried out analyzing and processing after collecting temperature value in the wet and dry bulb temperature sensor, is sent to middle control module and carries out data and process and obtain temperature and humidity; The control module is sent instruction by middle control module after can comparing according to the data of the data of sending and setting then, the mode that adopts PID to regulate is controlled and is added thermal control units, humidification control module and freezing control module, adjust temperature required and desired moisture level and the operation by signal output control related device, final so that data that the humiture collection module collects in the wet and dry bulb temperature sensor conform to the setting value of humiture in the man-machine interface; To from the various signals input of collecting, carry out exporting corresponding signal by signal output module after the information processing in this signal input module in the control module corresponding control device will be controlled, such as lighting device, warning device etc.
PID is a kind of control mode the most frequently used in the commercial production, and PID is applicable to carry out the system of high-acruracy survey control, can go out best pid control parameter according to the controlled device auto computing.In engineering reality, the regulator control law that is most widely used is ratio, integration, differential control, is called for short PID control, claims again PID to regulate.
As a kind of preferred version, described middle control module further includes the information storage unit, and control module is provided with a USB interface in this, USB flash disk is plugged in this USB interface and with the data copy of information storage module out analyzes; Described middle control module also is connected with a network interface, and this network interface can be connected with the internet, realizes the Long-distance Control of system.
As a kind of preferred version, described middle control module is provided with a man-machine interface, and this man-machine interface is provided with operating and setting unit, formula setup unit, monitoring image unit, curve display unit, warning resume unit and system's setting unit; During operation, in the operating and setting unit, enter the operating and setting picture and open the associative operation instruction and carry out the parameter setting; Carry out the formula related setting in the formula setup unit, this formula setup unit can be preserved 269 kinds of formulas, and each formula is 50 sections, and the client can write voluntarily as required control program and realize that product divides ladder humiture, different duration, tests continuously; For example: Temperature Setting is that 80 ℃, humidity are set as under 40% the condition and tested 4 hours; Then automatic temperature-adjusting is set as 50 ℃, humidity and is set as under 50% the condition and tested 5 hours; etc. under the different test condition; the user can be by writing control program; realize not shutting down automatically and carry out continuous test according to the step temperature humidity of setting in the different periods; need not reset, and the related setting before can preserving in the native system is in order to carry out the test of Related product next time in same step temperature humidity.In the monitoring image unit, click corresponding membrane keyboard, can enter fast each data interface and check or revise corresponding parameter; In the curve display unit, can click and check and enter real-time curve and history curve picture and transfer related experiment data and data and curves, also can finish the data dump operation; In this warning resume unit, can click and check warning zero-time, multiple extensive time and alarm content; In system's setting unit, the initialization system correlation parameter is set but access arrangement daily servicing and reservation start as required.
The present invention compared with prior art has obvious advantage and beneficial effect, and is specific as follows:
Temperature Humidity Sensor in this temperature and humidity control system adopts PT100 wet and dry bulb temperature approach sensor, greatly improved the scope of application of Temperature Humidity Sensor, the collection analysis degree of temperature reaches 0.01 ℃ in this humiture collection module, greatly improves accuracy and the stability of temperature acquisition; Effectively control by man-machine interface centering control module, the mode that particularly adopts PID to regulate in middle control module is controlled and is added thermal control units, humidification control module and freezing control module, can control accurately and effectively the humiture of whole system, so that constant temperature humidity chamber reaches in the process of product test is best, test the most accurately effect, logical man-machine interface generates historical data and the history curve that gathers simultaneously, analyzes data and curve map conveniently to provide.
Be provided with the USB socket in this temperature and humidity control system, be used for grafting mouse or USB flash disk, can adopt the operation of mouse control whole system, also can copy by USB flash disk the service data of experimental data and whole system, so that data analysis and plant maintenance.Also be provided with network interface in this temperature and humidity control system, so that whole process of the test can realize Long-distance Control, in order to timely and effectively chamber is managed control and the relevant service data of inquiry.
This programmable temperature and humidity control system has the stability of timely and effectively detection system operation of System self-test unit and the variation of relevant parameter, revises and remedies in order in time make, and avoids the generation of accident, improves the security of system performance.
This programmable temperature/humidity control method, set by each operational factor to whole system in the man-machine interface, the effectively operation of the whole constant temperature humidity chamber of control, under the effect of man-machine interface, can fast and effeciently carry out the parameter setting and can monitor constantly process of the test and the data of chamber this system, the experimental data that can transfer in three months is simultaneously carried out data analysis, improves security and the readability of experimental data.
This programmable temperature/humidity control method; can set different humitures in different time sections by formula design cell in the man-machine interface; do not need to shut down or reset the test of carrying out continuously product in the situation of test condition; the disposable product that detects is measured the performance of product under the condition of different humitures and IQF or instant heating.
Description of drawings
Fig. 1 is the schematic flow sheet of the present invention's embodiment;
Embodiment
Please refer to shown in Figure 1, it has shown the concrete structure of the present invention's preferred embodiment, a kind of programmable Multifunctional warm moisture control system, include for the Temperature Humidity Sensor of surveying humiture, be used for gathering the humiture collection module of Temperature Humidity Sensor temperature, be used for gathering the signal input module of real time environment data, be used for sending the signal output module of steering order, and the middle control module that the data of modules are processed, this Temperature Humidity Sensor is connected with the humiture collection module, should middle control module include programmable controller and man-machine interface, this man-machine interface is connected with programmable controller, this programmable controller is connected with the humiture collection module, and this signal output module is connected with signal output module by programmable controller.Described signal input module includes digital signal load module and A/D module, this signal output module includes digital signal output modules and D/A module, this digital signal load module is connected with Programmable Logic Controller with digital signal output modules, and this A/D module is connected with programmable controller with the D/A module.
Wherein, this programmable controller includes and adds thermal control units, humidification control module, freezing control module, lighting control unit, alarm unit and protected location.Wherein this adds the humiture that thermal control units, humidification control module and freezing control module are used for regulating system, this lighting control unit is used for the instruction unpack that sends by man-machine interface and closes illuminating lamp, this alarm unit is used for reporting to the police when abnormal conditions occurring, so that the experimenter in time pinpoints the problems, deals with problems; This protected location is used for when emergency occurring, and this protected location is in time made a response, and control is cut off the electricity supply and made relevant protective reaction.
Described programmable controller also comprises the equipment automatic checkout system, the System self-test unit of checkout equipment self health status.This System self-test unit is mainly used in the self check of the correlation parameters such as system power and each circuit pressure of refrigeration system, can detect intuitively the actual value of system power, and show by man-machine interface, this current actual value changes within the specific limits, can find whether electric current is unusual according to changing, need equipment is entered maintenance, each circuit pressure of this refrigeration system detects can check in time whether snow kind of pressure is normal, in man-machine interface, also can show, when its super scope of inspection, can in time add or pinpoint the problems, prevent trouble before it happens.
This Temperature Humidity Sensor adopts PT100 wet and dry bulb temperature approach sensor, this PT100 wet and dry bulb temperature sensor setting has the two temperatures detector bar, different test modes by the two temperatures detector bar obtain two different temperature, obtain humiture in the chamber by these two different temperature conversions.This temperature sensing rod can be high temperature resistant also can be low temperature resistant; in process of the test, often have hot environment or IQF environment; general humiture detector damages under this environment easily, adopts PT100 wet and dry bulb temperature sensor then not damage in-100 ℃ ~ 325 ℃ temperature range.The temperature acquisition analysis degree of this humiture collection module is 0.01 ℃; Be that the minimum temperature value that can offer an explanation is 0.01 ℃ in the humiture collection module, improvement by this humiture collection module, can Effective Raise the precision of test, the temperature range that this PT100 Temperature Humidity Sensor cooperates this humiture collection module to detect is that-100 ℃ ~ 325 ℃, humidity range are 0 ~ 100%.
Should middle control module further include the information storage unit, this man-machine interface is connected with one for data copy out the USB interface of circumscribed USB storage device with information storage module; Described man-machine interface also is connected with the network interface that can be connected with the internet, can realize Long-distance Control.
This man-machine interface can adopt very color 4.3 cun, 5.7 very little, 7 cun or 10.2 cun liquid crystal display touch screens such as screen, this man-machine interface includes the operating and setting unit that can enter the operating and setting picture, can enter the formula setup unit of formula related setting, click can enter the monitoring image unit of each data interface fast, can enter the curve display unit of real-time curve and history curve picture, but can check warning resume unit and the access arrangement daily servicing of All Alerts zero-time and multiple extensive time and alarm content and preengage and start system's setting unit of setting and transferring data.
A kind of programmable temperature/humidity control method, at first, this humiture collection module is carried out analyzing and processing after collecting temperature value in the wet and dry bulb temperature sensor, is sent to middle control module and carries out data and process and obtain temperature and humidity; The control module is sent instruction by middle control module after can comparing according to the data of the data of sending and setting then, the mode that adopts PID to regulate is controlled and is added thermal control units, PID regulation output control humidification control module and freezing control module, adjust temperature required and desired moisture level and the operation by signal output control related device, final so that data that the humiture collection module collects in the wet and dry bulb temperature sensor conform to the setting value of humiture in the man-machine interface; To from the various signals input of collecting, carry out exporting corresponding signal by signal output module after the information processing in this signal input module in the control module corresponding control device will be controlled, such as lighting device, warning device etc.
Should middle control module further include the information storage unit, control module is provided with a USB interface in this, USB flash disk is plugged in this USB interface and with the data copy of information storage module out analyzes; Described middle control module also is connected with a network interface, and this network interface can be connected with the internet, realizes the Long-distance Control of system.
Should middle control module be provided with a man-machine interface, this man-machine interface is provided with operating and setting unit, formula setup unit, monitoring image unit, curve display unit, warning resume unit and system's setting unit; During operation, in the operating and setting unit, enter the operating and setting picture and open the associative operation instruction and carry out the parameter setting; Carry out the formula related setting in the formula setup unit, this formula setup unit can be preserved 269 kinds of formulas, and each formula is 50 sections, and the client can write voluntarily as required control program and realize that product divides ladder humiture, different duration, tests continuously; For example: Temperature Setting is that 80 ℃, humidity are set as under 40% the condition and tested 4 hours; Then automatic temperature-adjusting is set as 50 ℃, humidity and is set as under 50% the condition and tested 5 hours; etc. under the different test condition; the user can be by writing control program; realize not shutting down automatically and carry out continuous test according to the step temperature humidity of setting in the different periods; need not reset, and the related setting before can preserving in the native system is in order to carry out the test of Related product next time in same step temperature humidity.In the monitoring image unit, click corresponding membrane keyboard, can enter fast each data interface and check or revise corresponding parameter; In the curve display unit, can click and check and enter real-time curve and history curve picture and transfer related experiment data and data and curves, also can finish the data dump operation; In this warning resume unit, can click and check warning zero-time, multiple extensive time and alarm content; In system's setting unit, the initialization system correlation parameter is set but access arrangement daily servicing and reservation start as required.
Design focal point of the present invention is: the Temperature Humidity Sensor in this temperature and humidity control system adopts PT100 wet and dry bulb temperature approach sensor, greatly improved the scope of application of Temperature Humidity Sensor, the collection analysis degree of temperature reaches 0.01 ℃ in this humiture collection module, greatly improves accuracy and the stability of temperature acquisition; Effectively control by man-machine interface centering control module, the mode that particularly adopts PID to regulate in middle control module is controlled and is added thermal control units, humidification control module and freezing control module, can control accurately and effectively the humiture of whole system, so that constant temperature humidity chamber reaches in the process of product test is best, test the most accurately effect, logical man-machine interface generates historical data and the history curve that gathers simultaneously, analyzes data and curve map conveniently to provide.
Be provided with the USB socket in this temperature and humidity control system, be used for grafting mouse or USB flash disk, can adopt the operation of mouse control whole system, also can copy by USB flash disk the service data of experimental data and whole system, so that data analysis and plant maintenance.Also be provided with network interface in this temperature and humidity control system, so that whole process of the test can realize Long-distance Control, in order to timely and effectively chamber is managed control and the relevant service data of inquiry.
This programmable temperature and humidity control system has the stability of timely and effectively detection system operation of System self-test unit and the variation of relevant parameter, revises and remedies in order in time make, and avoids the generation of accident, improves the security of system performance.
This programmable temperature/humidity control method, set by each operational factor to whole system in the man-machine interface, the effectively operation of the whole constant temperature humidity chamber of control, under the effect of man-machine interface, can fast and effeciently carry out the parameter setting and can monitor constantly process of the test and the data of chamber this system, the experimental data that can transfer in three months is simultaneously carried out data analysis, improves security and the readability of experimental data.
This programmable temperature/humidity control method; can set different humitures in different time sections by formula design cell in the man-machine interface; do not need to shut down or reset the test of carrying out continuously product in the situation of test condition; the disposable product that detects is measured the performance of product under the condition of different humitures and IQF or instant heating.
The above, it only is preferred embodiment of the present invention, be not that technical scope of the present invention is imposed any restrictions, so every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any trickle modification, equivalent variations and modification that above embodiment makes.
Claims (10)
1. programmable Multifunctional warm moisture control system, it is characterized in that: include for the Temperature Humidity Sensor of surveying humiture, be used for gathering the humiture collection module of Temperature Humidity Sensor temperature, be used for gathering the signal input module of real time environment data, be used for sending the signal output module of steering order, and the middle control module that the data of modules are processed, this Temperature Humidity Sensor is connected with the humiture collection module, should middle control module include programmable controller and man-machine interface, this man-machine interface is connected with programmable controller, this programmable controller is connected with the humiture collection module, and this signal output module is connected with signal output module by programmable controller.
2. described programmable Multifunctional warm moisture control system according to claim 1, it is characterized in that: described signal input module includes digital signal load module and A/D module, this signal output module includes digital signal output modules and D/A module, this digital signal load module is connected with Programmable Logic Controller with digital signal output modules, and this A/D module is connected with programmable controller with the D/A module.
3. described programmable Multifunctional warm moisture control system according to claim 1, it is characterized in that: described programmable controller includes and adds thermal control units, humidification control module, freezing control module, lighting control unit, alarm unit and protected location.
4. described programmable Multifunctional warm moisture control system according to claim 1, it is characterized in that: described programmable controller further includes the System self-test unit of automatic checkout equipment self-operating situation.
5. described programmable Multifunctional warm moisture control system according to claim 1, it is characterized in that: described Temperature Humidity Sensor adopts PT100 wet and dry bulb temperature sensor; The temperature acquisition analysis degree of described humiture collection module is 0.01 ℃.
6. described programmable Multifunctional warm moisture control system according to claim 1, it is characterized in that: described middle control module further includes the information storage unit, and this man-machine interface is connected with one for data copy out the USB interface of circumscribed USB storage device with information storage module; Described man-machine interface has the network interface that can be connected with the internet, can realize Long-distance Control.
7. described programmable Multifunctional warm moisture control system according to claim 1, it is characterized in that: described man-machine interface is touching display screen, and this man-machine interface includes the operating and setting unit that can enter the operating and setting picture, can enter the formula setup unit of formula related setting, click can enter the monitoring image unit of each data interface fast, can enter the curve display unit of real-time curve and history curve picture, but can check warning resume unit and the access arrangement daily servicing of All Alerts zero-time and multiple extensive time and alarm content and preengage and start system's setting unit of setting and transferring data.
8. programmable temperature/humidity control method is characterized in that: at first, this humiture collection module is carried out analyzing and processing after collecting temperature value in the wet and dry bulb temperature sensor, is sent to middle control module and carries out data and process and obtain temperature and humidity; The control module is sent instruction by middle control module after can comparing according to the data of the data of sending and setting then, the mode that adopts the PID regulation output is controlled and is added thermal control units, humidification control module and freezing control module, adjust temperature required and desired moisture level and the operation by signal output control related device, final so that data that the humiture collection module collects in the wet and dry bulb temperature sensor conform to the setting value of humiture in the man-machine interface; To carry out exporting corresponding signal by signal output module after the information processing in this signal input module from the various signals input of collecting in the control module controls corresponding control device.
9. described programmable temperature/humidity control method according to claim 8, it is characterized in that: described middle control module further includes the information storage unit, should middle control module be provided with a USB interface, and USB flash disk was plugged in this USB interface and with the data copy of information storage module out analyze; Described middle control module also is connected with a network interface, and this network interface can be connected with the internet, realizes the Long-distance Control of system.
10. described programmable temperature/humidity control method according to claim 8, it is characterized in that: described middle control module is provided with a man-machine interface, and this man-machine interface is provided with operating and setting unit, formula setup unit, monitoring image unit, curve display unit, warning resume unit and system's setting unit; During operation, in the operating and setting unit, enter the operating and setting picture and open the associative operation instruction and carry out the parameter setting; Carry out the formula related setting in the formula setup unit, this formula setup unit can be preserved 269 kinds of formulas, and each formula is 50 sections, and the client can write voluntarily as required control program and realize that product divides ladder humiture, different duration, tests continuously; In the monitoring image unit, click corresponding membrane keyboard, can enter fast each data interface and check or revise corresponding parameter; In the curve display unit, can click and check and enter real-time curve and history curve picture and transfer related experiment data and data and curves, also can finish the data dump operation; In this warning resume unit, can click and check warning zero-time, multiple extensive time and alarm content; In system's setting unit, the initialization system correlation parameter is set but access arrangement daily servicing and reservation start as required.
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| CN109164848A (en) * | 2018-11-08 | 2019-01-08 | 东莞市台通电子科技有限公司 | A kind of temperature and humidity cold-smoothing weighing apparatus quck-opening valve control system |
| CN109939322A (en) * | 2019-03-29 | 2019-06-28 | 杭州弯超医疗科技有限公司 | Breathe the temperature/humidity control method and system of humidifying equipment |
| CN110370437A (en) * | 2019-06-17 | 2019-10-25 | 中国地质大学（武汉） | A kind of concrete constant temperature and humidity curing means |
| CN111649785A (en) * | 2020-07-20 | 2020-09-11 | 中国船舶电站设备有限公司 | Temperature and humidity monitoring system for ship |
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