CN101749827A - Environmental control system and method - Google Patents
Environmental control system and method Download PDFInfo
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- CN101749827A CN101749827A CN200810186180A CN200810186180A CN101749827A CN 101749827 A CN101749827 A CN 101749827A CN 200810186180 A CN200810186180 A CN 200810186180A CN 200810186180 A CN200810186180 A CN 200810186180A CN 101749827 A CN101749827 A CN 101749827A
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Abstract
The invention discloses an environmental control system which is used for adjusting the environment in the adjusting region and comprises a detection unit, a control unit and an execution unit. The detection unit detects the environment in the adjusting region and sends more than two detected environmental parameter signals to the control unit; and the control unit receives the environmental parameter signals and outputs the control signal to the execution unit so as to adjust the environmental parameter in the adjusting region, wherein the control unit adjusts more than two environmental parameters according to priority. The invention also provides an environmental control method. The environment in the adjusting region can be effectively adjusted so as to achieve the effect of constant temperature and humidity.
Description
Technical field
The invention belongs to environment and regulate field, the particularly adjusting of for example temperature and humidity parameter in the environment.
Background technology
Environmental control system (for example at present, central air conditioner system) can not reach the effect of constant temperature and humidity usually, and (for example, precision instrumentation is made field, phone housing spraying field, detected electrons field, automotive field etc.) all needs the environment of constant temperature and humidity in a lot of application scenarios.Therefore need to provide the system and method for this constant-temperature constant-humidity environment.
Summary of the invention
The purpose of this invention is to provide a kind of humidity in the control band and temperature all can be controlled in the preset range and realize the method and system of constant temperature and humidity.
According to an aspect of the present invention, provide a kind of environmental control system, comprising: described detecting unit detects the environment of control band, and the two or more environmental parameter signals that detection is obtained sends to control module; Described control module receives described environmental parameter signals, regulates with the ambient parameter to control band to performance element output control signal, and wherein, described control module carries out described adjusting to two or more ambient parameters by different priority.
According to another aspect of the present invention, a kind of environment control method comprises: the temperature parameter and the humidity parameter that detect control band; According to the humidity parameter and the humidity preset range that detect the humidity of control band is regulated; After the humidity of control band was regulated, control module was regulated the temperature of control band to performance element output control signal according to temperature regime that detects and temperature preset range.
According to the present invention, can preferably the temperature and humidity in the control band (for example confined space) be adjusted to the environment that constant temperature and humidity is provided in the default scope.
Description of drawings
Fig. 1 is the structured flowchart of one embodiment of the invention environmental control system;
Fig. 2 is the structured flowchart of detecting unit in the system shown in Figure 1;
Fig. 3 is the structured flowchart of performance element in the system shown in Figure 1;
Fig. 4 is the schematic flow sheet of one embodiment of the invention environment control method;
Fig. 5 is the schematic flow sheet of in the method shown in Figure 4 the humidity of control band being regulated;
Fig. 6 is the schematic flow sheet of in the method shown in Figure 4 the humidity of control band being regulated;
Fig. 7 is the principle schematic of control module in the system shown in Figure 1;
Fig. 8 is the system configuration schematic diagram of control module in the system shown in Figure 1;
Fig. 9 is the schematic diagram of humidification module in the performance element shown in Figure 3.
The specific embodiment
The object of the invention, function and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
As shown in Figure 1, a kind of environmental control system comprises detecting unit 30, control module 20 and performance element 40.This environmental control system also comprises main control unit 10.More than each unit can be arranged in the air-conditioning equipment.
Detecting unit 30 detects and interior relevant ambient parameter such as humidity, the temperature etc. of environmental aspect of control band, and the environmental parameter signals that detection is obtained sends to control module 20.As shown in Figure 2, detecting unit 30 can comprise frequency converter detection module 303, fire prevention detection module 302 and temperature/humidity sensor 301.Wherein, frequency converter detection module 303 detects air conditioning frequency converters, and operation irregularity is (for example, overcurrent trip appears in air conditioning frequency converter when quickening, slowing down or normally moving), when air-conditioning equipment frequency converter operation irregularity, then send abnormal signal and give main control unit 10.Fire prevention detection module 302 can be arranged on the air inlet place of the airduct of air-conditioning equipment in the performance element 40.When the control band temperature is too high, sends abnormal signal and give main control unit 10.Temperature/humidity sensor 301 can be arranged on the air inlet place of air-conditioning equipment airduct, detects control band temperature and humidity, and temperature parameter signal and humidity parameter signal that detection is obtained send to control module 20.
Wherein, first control module 201 is exported control signals to regulate humidity according to humidity conditions that detects and humidity preset range to described heating module 403, refrigeration module 402 and humidification module 401.Second control module 202, to described heating module 403, refrigeration module 402 output control signals are to regulate temperature according to the temperature regime that detects and temperature preset range.
Fig. 4 shows the flow process of environment control method, and this method can comprise based on environmental control system shown in Figure 1:
S1, detecting unit 30 detects the environment of control band, sends to control module 20 and detects temperature parameter and the humidity parameter that obtains.
S2, control module 20 is regulated the humidity of control band to performance element 40 output control signals according to humidity conditions that detects and humidity preset range (for example, 50% to 60%).
S3, control module 20 is regulated the temperature of control band to performance element 40 output control signals according to temperature regime that detects and temperature preset range (for example, 24 ℃ to 26 ℃).
In control method, the adjusting of humidity in the control band is had precedence over adjusting to temperature in the control band, thereby comparatively fast reach constant humidity, the effect of constant temperature.
Before execution in step S1, control module 20 can also be earlier detects in the operation exception that whether has air conditioning frequency converter or the control band temperature by frequency converter detection module 303 and/or fire prevention detection module 302 and whether crosses high situation.Under the situation of no abnormal generation, make control module 20 operations.
Fig. 5 shows control module 20 and exports the flow process that control signals are regulated the humidity of control band according to humidity conditions that detects and humidity preset range to performance element 40, and this flow process can comprise based on system shown in Figure 1:
S21, control module 20 receives the humidity parameter signal that detecting unit 30 sends.
S22, control module 20 be according to the humidity parameter signal that receives, and whether the humidity of judging control band is in the humidity preset range (for example, between 50% to 60%).If be lower than the lower limit (50%) of humidity preset range, then execution in step S23.If be higher than the upper limit (60%) of humidity preset range, then execution in step S24.
S23, humidification module 401 (see figure 3)s in the control module 20 control performance elements 40 are carried out humidification, improve back (for example, between 50% to 60%) in the humidity preset range in the humidity with control band, and execution in step S3 carries out adjustment.
S24, refrigeration module 402 (see figure 3)s in the control module 20 control performance elements 40 are freezed, and the temperature in control band is reduced to dew-point temperature.
S25, whether the humidity of judging control band is in preset range.If not, execution in step S26; If, execution in step S3.
S26, heating module 403 (see figure 3)s in the control module 20 control performance elements 40 heat.
S27 judges during heating whether the humidity of control band is controlled in the humidity preset range (for example, between 50% to 60%).If humidity still is higher than the upper limit of preset range, then execution in step S24; If, execution in step S3 then.Utilize the characteristic of pid algorithm, step S27 needs through after a while to S24.Therefore can avoid the situation of frequent heating and cooling.
Fig. 6 shows control module 20 and exports the flow process that control signals are regulated the temperature of control band according to temperature regime that detects and temperature preset range to performance element 40, can comprise:
S31, control module 20 receives the temperature parameter signal that detecting unit 40 sends.
S32, control module 20 be according to the temperature parameter signal that receives, and judges that the control band temperature is whether in the temperature preset range (for example, 24 ℃ to 26 ℃).If be lower than the lower limit (for example, 24 ℃) of temperature preset range, then execution in step S32.If be higher than the upper limit (for example, 26 ℃) of temperature preset range, then execution in step S33.
S33, control module 20 control performance elements 40 heat, and the temperature in heat regulation zone is (for example, 24 ℃ to 26 ℃) to the temperature preset range.
S34, control module 20 control performance elements 40 freeze, and reduce the temperature (for example, 24 ℃ to 26 ℃) to the temperature preset range of control band.
Wherein, in the process of the heating of step S33, may cause the reduction of humidity in the control band,, then will proceed to regulate to the humidity of control band by above-mentioned steps S23 when humidity is lower than the demand humidity lower limit (for example, 50%) of setting.
Wherein, in the process of refrigerastion of step S34, may cause humidity increase in the control band.Prescribe a time limit (for example, 60%) when humidity is higher than going up of setting demand humidity, then can repeat said process S24-S27 humidity is proceeded to regulate.
This environment control method adopts humidity preferentially to control principle, preferentially humidity is adjusted.That is, in control module 20, make the priority that the humidity in the control band is controlled, under the prerequisite of humidity in preset range that guarantees control band, temperature is adjusted greater than temperature controlled priority.Control module 20 when excessive humidity is adjusted, needs the dual regulation of refrigeration and heating, in the one-sided adjusting that too small humidity adjustment is needed humidification according to the enthalpy table.Control simultaneously by refrigeration, heating and humidification three aspects, can obtain the better control effect of humidity regulation.Adopt this environment control method, make the adjusting of humidity to do corresponding adjustment, satisfy instructions for use well according to the curve of enthalpy table.
Type selecting example below in conjunction with each unit and module is described the structure of regulating area control system.Wherein, control module 20 can adopt the temperature/humidity controller to realize, specifically can select Siemens RLU236 for use.Temperature/humidity sensor 301 can be selected Siemens QFM2160 for use.Humidification module 401 can be selected the graceful OEM3000 series of Switzerland's promise seam humidifier for use.Main control unit 10 can be selected Siemens S7-200 for use.
As shown in Figure 8, temperature/humidity controller (being control module 20) is connected with temperature/humidity sensor 301.The lead-out terminal G1 of temperature/humidity controller, Y1, G0 connect the cold valves actuator.The cold valves actuator is according to the analog voltage signal control cold valves aperture of temperature/humidity controller output.
The lead-out terminal G1 of temperature/humidity controller, Y2, G0 connect humidification bucket controller.Humidification bucket controller receives the humidifying electrode voltage of the analog voltage signal control humidification bucket of temperature/humidity controller output.
The lead-out terminal Q11 of temperature/humidity controller, Q14, Q23, Q24, Q33, Q34 connect solid-state relay respectively, thereby electric heating tube is controlled.The terminal D1 of temperature/humidity controller, M is connected with control module Siemens S7-200.Wherein, terminal D1, M are the startup terminal of temperature/humidity controller.The temperature/humidity controller is in holding state when terminal D1 and terminal M closure.When terminal D1 and terminal M disconnection, the temperature/humidity controller is in running order.To terminal D1 and the middle relay of terminal M, the startup of temperature controllable/humidity controller is controlled thereby open constant temperature and humidity by main control unit 10 output signals.
Below in conjunction with Figure 10 the configuration of temperature/humidity controller is described.There is the two-way pid control circuit temperature/humidity controller 6 inside, determine temperature according to pid control algorithm respectively, the control signal of humidity.Wherein, one road pid control circuit control temperature parameter (this road pid control circuit is defined as first control loop), another road pid control circuit controlled humidity parameter (this road pid control circuit is defined as second control loop).The output of heating controlled quentity controlled variable can be adopted digital quantity output.Refrigeration controlled quentity controlled variable and the output of humidification controlled quentity controlled variable can be adopted analog quantity output.
In first control loop, X1 physics input point receives the temperature signal that temperature/humidity sensor 301 sends.The inner splicing ear X of X1 physics input point connects the SUPPLY end of control loop CTLOOP1, is used for determining that the master variable of first control loop is a temperature signal.
The y1 end of the inner splicing ear SEQ1Y of first control loop link pack STEPV2.Lead-out terminal STEP1 to STEP6 connects physics lead-out terminal Q1, Q2, Q3, Q4, Q5, Q6 respectively among the combination block STEPV2, is used for the control to the temperature variable elevation process.The inner splicing ear SEQ4Y of first control loop connects analog quantity modules A 01, and analog module A01 connects internal physical lead-out terminal Y1, as the control that temperature variable is reduced process.
In second control loop, X2 physics input point receives the moisture signal that temperature/humidity sensor 301 sends.The inner splicing ear X of X2 physics input point connects the MAIN end of control loop CTLOOP2, is used for determining that the master variable of second control loop is a moisture signal.The inner splicing ear SEQ1Y of second control loop connects analog quantity modules A 02, and the sub-A0 of internal output terminal connects physics lead-out terminal Y2 among the analog module A02, as the control to the humidity variables elevation process.The inner splicing ear SEQ of second control loop 4Y connects analog quantity modules A 01, and the inner reason of analog module A01 attachment lead-out terminal Y1 is as the control that humidity variables is reduced process.
As shown in figure 11, humidification module 401 comprises humidification bucket 4010 and the humidification bucket controller 4011 that is connected with humidification bucket 4010.Humidification bucket controller 4011 comprises circuit board terminals 40110 and the control panel toggle switch 40111 that receives humidification controlled quentity controlled variable (from the temperature/humidity controller) input.The setting of control panel toggle switch 40111 is to select according to the volume of humidification bucket 4010 and working method.
Disclose 100 middle water levels and cross when low when water level detection switch 1003 detects humidifications, humidification bucket controller 4011 pins 3 electric, water supply electromagnetic valve 300 is started working, and water level is risen.When water level detection switch 1001 detection humidification buckets 4010 middle water levels were too high, humidification bucket controller 4011 pins 2 got electric, thereby 2 work of control drain solenoid valve reduce humidification bucket 4010 middle water levels.
A.C. contactor 5000 connects humidification bucket controller 200 pins 1 and pin 9.When the signal that inputs to circuit board terminals 40110 was 0V, temperature/humidity controller control A.C. contactor 500 disconnected, and humidification bucket electrode is not worked.When input to circuit board terminals 40110 when the 10V, temperature/humidity controller control A.C. contactor 500 closures, controlling input voltage simultaneously is total head, makes heating electrode by rated power work.The heating electrode operating voltage is by the linear direct proportion work of control signal 0 to 10V, and regional humidification amount controls environment.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. an environmental control system is used for the environment of control band is regulated, and it is characterized in that, comprises detecting unit, control module and performance element;
Described detecting unit detects the environment of control band, and the two or more environmental parameter signals that detection is obtained sends to control module;
Described control module receives described environmental parameter signals, regulates with ambient parameter to performance element output control signal control band,
Wherein, described control module carries out described adjusting to two or more ambient parameters by different priority.
2. system according to claim 1 is characterized in that,
Wherein, described ambient parameter comprises humidity and temperature, and the priority that described humidity is regulated is higher than described thermoregulator priority.
3. system according to claim 2 is characterized in that described performance element comprises heating module, refrigeration module and humidification module; Described heating module, refrigeration module and humidification module are regulated the humidity of control band according to the control of control module, described heating module, refrigeration module is regulated the temperature of control band according to the control of control module.
4. system according to claim 3 is characterized in that, described control module comprises:
First control module is exported control signal to regulate humidity according to humidity conditions that detects and humidity preset range to described heating module, refrigeration module and humidification module;
Second control module, to described heating module, refrigeration module output control signal is to regulate temperature according to the temperature regime that detects and temperature preset range.
5. according to each described system of claim 1-4, it is characterized in that described humidification module comprises:
The humidification bucket stores the liquid that is used for humidification; With
Humidification bucket controller receives the control signal of described control module, adds wet practice according to described control signal control humidification bucket.
6. according to each described system of claim 1-4, it is characterized in that described heating module comprises a plurality of heating tubes that are divided into many groups, described heating tube is controlled by grouping by described control module.
7. an environment control method is characterized in that, comprising:
Detect the temperature and the humidity of control band;
According to humidity that is detected and humidity preset range the humidity of described control band is regulated;
After the humidity of described control band being adjusted in the described humidity preset range, the temperature of control band is regulated according to described detected temperatures and temperature preset range.
8. method according to claim 7 is characterized in that, the humidity of described control band is regulated comprise:
If the humidity of described control band is higher than the upper limit of humidity preset range, then the temperature in the described control band is reduced to dew-point temperature;
After the temperature of described control band is reduced to dew-point temperature,, then described control band is heated if the humidity of described control band still is higher than the upper limit of humidity preset range.
9. method according to claim 8 is characterized in that, after to described control band heating, the humidity of described control band still is higher than described humidity preset range, then once more the temperature in the described control band is reduced to dew-point temperature.
10. according to each described method of claim 7-9, it is characterized in that, also comprise:
Mode with the grouping heating is regulated the temperature of control band.
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| CN200810186180A CN101749827A (en) | 2008-12-19 | 2008-12-19 | Environmental control system and method |
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| CN200810186180A CN101749827A (en) | 2008-12-19 | 2008-12-19 | Environmental control system and method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478642A (en) * | 2010-11-27 | 2012-05-30 | 西安大昱光电科技有限公司 | LED street-lamp high-temperature environment test control system |
| CN104236012A (en) * | 2013-06-12 | 2014-12-24 | 松下电器产业株式会社 | Environmental determination system, environment determination method and equipment selection device |
| CN104864546A (en) * | 2014-02-26 | 2015-08-26 | 珠海格力电器股份有限公司 | Control method and controller of combined air conditioning unit and air conditioning unit |
| CN104898438A (en) * | 2015-04-30 | 2015-09-09 | 广东美的制冷设备有限公司 | Household electrical appliance control method and apparatus, and terminal |
| CN105229304A (en) * | 2013-06-06 | 2016-01-06 | 埃地沃兹日本有限公司 | Vacuum pump |
| CN106524390A (en) * | 2015-09-11 | 2017-03-22 | 施耐德电气It公司 | Close humidity and temperature control method |
| CN108006912A (en) * | 2017-11-30 | 2018-05-08 | 苏州庆瑞空气***有限公司 | Air conditioning control method |
| CN108036466A (en) * | 2017-11-30 | 2018-05-15 | 苏州庆瑞空气***有限公司 | Lift the Intelligentized method of comfort of air conditioner |
| CN108340814A (en) * | 2018-04-04 | 2018-07-31 | 中车太原机车车辆有限公司 | Monitoring cabinet for operation vehicle for contact wire |
| CN108489031A (en) * | 2018-03-20 | 2018-09-04 | 广东美的暖通设备有限公司 | Control method, air-conditioner set and the storage medium of air-conditioner set |
| CN110410973A (en) * | 2019-07-24 | 2019-11-05 | 广东美的制冷设备有限公司 | Air conditioner and its humidifying controlling method |
| CN111174292A (en) * | 2018-10-24 | 2020-05-19 | 青岛海尔空调器有限总公司 | Movable air conditioner and humidity adjusting control method thereof |
| CN117329640A (en) * | 2023-12-01 | 2024-01-02 | 珠海格力电器股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478642A (en) * | 2010-11-27 | 2012-05-30 | 西安大昱光电科技有限公司 | LED street-lamp high-temperature environment test control system |
| CN105229304A (en) * | 2013-06-06 | 2016-01-06 | 埃地沃兹日本有限公司 | Vacuum pump |
| CN104236012A (en) * | 2013-06-12 | 2014-12-24 | 松下电器产业株式会社 | Environmental determination system, environment determination method and equipment selection device |
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| CN104864546A (en) * | 2014-02-26 | 2015-08-26 | 珠海格力电器股份有限公司 | Control method and controller of combined air conditioning unit and air conditioning unit |
| CN104898438A (en) * | 2015-04-30 | 2015-09-09 | 广东美的制冷设备有限公司 | Household electrical appliance control method and apparatus, and terminal |
| CN106524390A (en) * | 2015-09-11 | 2017-03-22 | 施耐德电气It公司 | Close humidity and temperature control method |
| CN108036466A (en) * | 2017-11-30 | 2018-05-15 | 苏州庆瑞空气***有限公司 | Lift the Intelligentized method of comfort of air conditioner |
| CN108006912A (en) * | 2017-11-30 | 2018-05-08 | 苏州庆瑞空气***有限公司 | Air conditioning control method |
| CN108489031A (en) * | 2018-03-20 | 2018-09-04 | 广东美的暖通设备有限公司 | Control method, air-conditioner set and the storage medium of air-conditioner set |
| CN108340814A (en) * | 2018-04-04 | 2018-07-31 | 中车太原机车车辆有限公司 | Monitoring cabinet for operation vehicle for contact wire |
| CN111174292A (en) * | 2018-10-24 | 2020-05-19 | 青岛海尔空调器有限总公司 | Movable air conditioner and humidity adjusting control method thereof |
| CN111174292B (en) * | 2018-10-24 | 2021-11-23 | 青岛海尔空调器有限总公司 | Movable air conditioner and humidity adjusting control method thereof |
| CN110410973A (en) * | 2019-07-24 | 2019-11-05 | 广东美的制冷设备有限公司 | Air conditioner and its humidifying controlling method |
| CN117329640A (en) * | 2023-12-01 | 2024-01-02 | 珠海格力电器股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
| CN117329640B (en) * | 2023-12-01 | 2024-03-22 | 珠海格力电器股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
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