CN105094027A - Controlling method for physical parameters of environment - Google Patents
Controlling method for physical parameters of environment Download PDFInfo
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- CN105094027A CN105094027A CN201510392142.1A CN201510392142A CN105094027A CN 105094027 A CN105094027 A CN 105094027A CN 201510392142 A CN201510392142 A CN 201510392142A CN 105094027 A CN105094027 A CN 105094027A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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Abstract
The invention discloses a controlling method for physical parameters of an environment. The controlling method comprises the following steps: establishing a variety of alarms such as indicated value upper limit alarm, indicated value lower limit alarm, deviation upper limit alarm, deviation lower limit alarm, upper and lower limit deviation range outside alarm and upper and lower limit deviation range inside alarm; comparing the physical parameters PV (practical values) acquired from an environment with pre-set physical parameters SP of an environment, an parameter alarm value POINT of parameters of an environment and the HYS in accordance with the type of the specific alarm so as to regulate parameters of an environment. This method is highly targeted and is precise. The programming of computation is relatively easy and does not waste much human or hardware resources, and therefore, costs and energy are reduced.
Description
Technical field
The present invention relates to laboratory environment monitoring field, more specifically, relate to a kind of environmental physical parameter control method.
Background technology
Laboratory equipment has respective temperature, humidity requirement, particularly some exact instrument or special industry, their laboratory requires higher to humiture, such as in root weaving, dyeing, all technical of change to textile of testing environment temperature, humidity all has a great impact.That the necessary work such as scientific experiment is carried out in particular/special requirement laboratory to these special experimental laboratory temperature and humidity filed, traditional test is according to different humidity requirements from control, by the adjustment final state that hardware setting is different, can by the humidity regulation bamboo of lab space to setting value.The electric measure and control instrument typically using the instrument such as thermometer, humidometer and output analog quantity carrys out measuring and control data, is by the warm and humid angle value manually reading and record on analogue instrument.These method control accuracies are low, and the cost of consumption is high, and consuming time.
Summary of the invention
The object of the present invention is to provide a kind of environmental physical parameter control method, the method control accuracy is high, and the cost of consumption is low.
Another object of the present invention is to provide a kind of environmental physical parameter control system.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of environmental physical parameter control method, comprises the following steps:
S1: determine environmental physical parameter preset value SP, environmental physical parameter alarming value POINT and not sensing zone region HYS, and set type of alarm;
S2: the environmental physical parameter PV gathering current environment;
S3: selected type of alarm, current environmental physical parameter PV and environmental physical parameter preset value SP, environmental physical parameter alarming value POINT and not sensing zone region HYS are compared thus allows the start and stop of environmental physical parameter regulating device, wherein when PV arrives SP, not make environmental physical parameter regulating device stop immediately or start, but arrange one from SP to POINT size be HYS buffer zone between to increase the time interval of environmental physical parameter regulating device start and stop, make the infrequently start and stop of environmental physical parameter regulating device.
Preferably, described environmental physical parameter is temperature, humidity, intensity of illumination, UV intensity, gas concentration lwevel, carbonomonoxide concentration, oxygen concentration, concentration of hydrogen sulfide, nitrogen gas concn, oxygen level or the air pressure in current environment.
Further, the type of alarm in described step S1 comprises indicated value upper limit alarm, indicated value lower limit is reported to the police, upper deviation is reported to the police, the lower limit of variation is reported to the police, bound deviation range is reported to the police outward and report to the police in bound deviation range.
Further, the detailed process of described step S3 comprises following Selective type:
1) selected type of alarm is the indicated value upper limit and warning direct action and without time standby, if PV > is POINT, environmental physical parameter regulating device is opened; If PV < is POINT-HYS, environmental physical parameter regulating device quits work; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
2) selected type of alarm is the indicated value upper limit and warning negative actuation and without time standby, if PV > is POINT, environmental physical parameter regulating device quits work; If PV < is POINT-HYS, environmental physical parameter regulating device is opened; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
3) selected type of alarm be the indicated value upper limit and warning direct action and have standby time, if PV > is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
4) selected type of alarm be the indicated value upper limit and warning negative actuation and have standby time, if PV > is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
5) selected type of alarm is indicated value lower limit and warning direct action and without time standby, if PV < is POINT, environmental physical parameter regulating device is opened; If PV > is POINT+HYS, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
6) selected type of alarm is indicated value lower limit and warning negative actuation and without time standby, if PV < is POINT, environmental physical parameter regulating device quits work; If PV > is POINT+HYS, environmental physical parameter regulating device is opened; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
7) selected type of alarm be indicated value lower limit and warning direct action and have standby time, if PV < is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; PV > POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
8) selected type of alarm be indicated value lower limit and warning negative actuation and have standby time, if PV < is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
9) selected type of alarm is upper deviation and warning direct action and without time standby, if PV > is SP+POINT, environmental physical parameter regulating device is opened; If PV < is SP+POINT-HYS, environmental physical parameter regulating device quits work; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
10) selected type of alarm is upper deviation and warning negative actuation and without time standby, if PV > is SP+POINT, environmental physical parameter regulating device quits work; If PV < is SP+POINT-HYS, environmental physical parameter regulating device is opened; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
11) selected type of alarm be upper deviation and warning direct action and have standby time, if PV > is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device is opened; If PV < is SP+POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
12) selected type of alarm be upper deviation and warning negative actuation and have standby time, if PV > is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV < is SP+POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
13) selected type of alarm is the lower limit of variation and warning direct action and without time standby, if PV < is SP+POINT, environmental physical parameter regulating device is opened; If PV > is SP+POINT+HYS, environmental physical parameter regulating device quits work; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
14) selected type of alarm is the lower limit of variation and warning negative actuation and without time standby, if PV < is SP+POINT, environmental physical parameter regulating device quits work; If PV > is SP+POINT+HYS, environmental physical parameter regulating device is opened; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
15) selected type of alarm be the lower limit of variation and warning direct action and have standby time, if PV < is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV > is SP+POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
16) selected type of alarm be the lower limit of variation and warning negative actuation and have standby time, if PV < is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV > is SP+POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
17) selected type of alarm is the outer and warning direct action of bound deviation range and without ， Ruo ∣ PV-SP ∣ > POINT time standby, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣≤POINT-HYS, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣≤POINT Qie ∣ PV-SP ∣ > POINT-HYS environmental physical parameter regulating device keep current state;
18) selected type of alarm be the outer and warning direct action of bound deviation range and have standby time; if ∣ PV-SP ∣ > POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣≤POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣≤POINT Qie ∣ PV-SP ∣ > POINT-HYS environmental physical parameter regulating device keep current state;
19) selected type of alarm is in bound deviation range and warning direct action and without ， Ruo ∣ PV-SP ∣≤POINT time standby, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣ >=POINT+HYS, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣ > POINT Qie ∣ PV-SP ∣≤POINT-HYS environmental physical parameter regulating device keep current state;
20) selected type of alarm is in bound deviation range and warning direct action and when having standby; if ∣ PV-SP is ∣≤POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣ >=POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣ > POINT Qie ∣ PV-SP ∣≤POINT-HYS environmental physical parameter regulating device keep current state;
Wherein, after " standby " expression PV arrives SP, environmental physical parameter regulating device just had start stop operation, and " having standby " represents the constraint by " standby " this condition, and " without standby " represents by the constraint of " standby " this condition; Warning direct action represents that physical parameter adjusting device performs the parameter adjustment action of expection, and warning negative actuation is warning direct action inverse operation.
Preferably, described environmental physical parameter regulating device is the unit of the some or all of composition control before cryogenic compressor, evaporator, condenser/evaporator, relay, contactor, compressor, blower fan, expansion valve in solenoid valve or auxiliary cooling solenoid valve.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
By first setting indicated value upper limit alarm in the present invention, indicated value lower limit is reported to the police, upper deviation is reported to the police, the lower limit of variation is reported to the police, bound deviation range is reported to the police outward and the multiple type of alarm such as warning in bound deviation range, go the physical parameter PV that gathers in environment and environmental physical parameter preset value SP according to concrete type of alarm again, environmental physical parameter alarming value POINT and not sensing zone region HYS compares thus the physical parameter adjusting device that controls environment, the control precision with strong points of this mode is high, the programming of algorithm also relatively easily can not waste large human cost and hardware resource, thus achieve the control of cost and the reduction of energy consumption.
Accompanying drawing explanation
Fig. 1 is the inventive method process flow diagram;
Fig. 2 is several job category schematic diagram when selecting indicated value upper limit alarm in the present invention;
Fig. 3 is several job category schematic diagram when selecting indicated value lower limit to report to the police in the present invention;
Fig. 4 is several job category schematic diagram when selecting upper deviation to report to the police in the present invention;
Fig. 5 is several job category schematic diagram when selecting the lower limit of variation to report to the police in the present invention;
Fig. 6 is several job category schematic diagram when selecting bound deviation range to report to the police in the present invention outward;
Fig. 7 selects several job category schematic diagram when reporting to the police in bound deviation range in the present invention;
Fig. 8 is the course of action schematic diagram that the present invention often plants type of alarm.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
As shown in Figure 1, a kind of environmental physical parameter control method, comprises the following steps:
S1: determine environmental physical parameter preset value SP, environmental physical parameter alarming value POINT and not sensing zone region HYS, and set type of alarm;
S2: the environmental physical parameter PV gathering current environment;
S3: selected type of alarm, current environmental physical parameter PV and environmental physical parameter preset value SP, environmental physical parameter alarming value POINT and not sensing zone region HYS are compared thus allows the start and stop of environmental physical parameter regulating device, wherein when PV arrives SP, not make environmental physical parameter regulating device stop immediately or start, but arrange one from SP to POINT size be HYS buffer zone between to increase the time interval of environmental physical parameter regulating device start and stop, make the infrequently start and stop of environmental physical parameter regulating device.
In the present embodiment, environmental physical parameter is temperature, humidity, intensity of illumination, UV intensity, gas concentration lwevel, carbonomonoxide concentration, oxygen concentration, concentration of hydrogen sulfide, nitrogen gas concn, oxygen level or air pressure in current environment; Environmental physical parameter regulating device is solenoid valve or auxiliary cooling solenoid valve before cryogenic compressor, evaporator, condenser/evaporator, relay, contactor, compressor, blower fan, expansion valve.
As illustrated in figs. 2 through 8, the concrete operations of the inventive method comprise following several Selective type:
1) selected type of alarm is the indicated value upper limit and warning direct action and without time standby, if PV > is POINT, environmental physical parameter regulating device is opened; If PV < is POINT-HYS, environmental physical parameter regulating device quits work; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
2) selected type of alarm is the indicated value upper limit and warning negative actuation and without time standby, if PV > is POINT, environmental physical parameter regulating device quits work; If PV < is POINT-HYS, environmental physical parameter regulating device is opened; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
3) selected type of alarm be the indicated value upper limit and warning direct action and have standby time, if PV > is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
4) selected type of alarm be the indicated value upper limit and warning negative actuation and have standby time, if PV > is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
5) selected type of alarm is indicated value lower limit and warning direct action and without time standby, if PV < is POINT, environmental physical parameter regulating device is opened; If PV > is POINT+HYS, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
6) selected type of alarm is indicated value lower limit and warning negative actuation and without time standby, if PV < is POINT, environmental physical parameter regulating device quits work; If PV > is POINT+HYS, environmental physical parameter regulating device is opened; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
7) selected type of alarm be indicated value lower limit and warning direct action and have standby time, if PV < is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; PV > POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
8) selected type of alarm be indicated value lower limit and warning negative actuation and have standby time, if PV < is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
9) selected type of alarm is upper deviation and warning direct action and without time standby, if PV > is SP+POINT, environmental physical parameter regulating device is opened; If PV < is SP+POINT-HYS, environmental physical parameter regulating device quits work; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
10) selected type of alarm is upper deviation and warning negative actuation and without time standby, if PV > is SP+POINT, environmental physical parameter regulating device quits work; If PV < is SP+POINT-HYS, environmental physical parameter regulating device is opened; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
11) selected type of alarm be upper deviation and warning direct action and have standby time, if PV > is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device is opened; If PV < is SP+POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
12) selected type of alarm be upper deviation and warning negative actuation and have standby time, if PV > is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV < is SP+POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
13) selected type of alarm is the lower limit of variation and warning direct action and without time standby, if PV < is SP+POINT, environmental physical parameter regulating device is opened; If PV > is SP+POINT+HYS, environmental physical parameter regulating device quits work; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
14) selected type of alarm is the lower limit of variation and warning negative actuation and without time standby, if PV < is SP+POINT, environmental physical parameter regulating device quits work; If PV > is SP+POINT+HYS, environmental physical parameter regulating device is opened; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
15) selected type of alarm be the lower limit of variation and warning direct action and have standby time, if PV < is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV > is SP+POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
16) selected type of alarm be the lower limit of variation and warning negative actuation and have standby time, if PV < is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV > is SP+POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
17) selected type of alarm is the outer and warning direct action of bound deviation range and without ， Ruo ∣ PV-SP ∣ > POINT time standby, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣≤POINT-HYS, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣≤POINT Qie ∣ PV-SP ∣ > POINT-HYS environmental physical parameter regulating device keep current state;
18) selected type of alarm be the outer and warning direct action of bound deviation range and have standby time; if ∣ PV-SP ∣ > POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣≤POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣≤POINT Qie ∣ PV-SP ∣ > POINT-HYS environmental physical parameter regulating device keep current state;
19) selected type of alarm is in bound deviation range and warning direct action and without ， Ruo ∣ PV-SP ∣≤POINT time standby, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣ >=POINT+HYS, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣ > POINT Qie ∣ PV-SP ∣≤POINT-HYS environmental physical parameter regulating device keep current state;
20) selected type of alarm is in bound deviation range and warning direct action and when having standby; if ∣ PV-SP is ∣≤POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣ >=POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣ > POINT Qie ∣ PV-SP ∣≤POINT-HYS environmental physical parameter regulating device keep current state;
Wherein, after " standby " expression PV arrives SP, environmental physical parameter regulating device just had start stop operation (if the environment temperature PV of the current actual measurement of example is 35 DEG C, and preset temperature is 32 DEG C, in this case no matter whether PV is greater than POINT, environmental physical parameter regulating device meeting has start-stop), " have standby " and represent by the constraint of " standby " this condition, " without standby " represents by the constraint of " standby " this condition; Warning direct action represents warning direct action and represents that physical parameter adjusting device performs the parameter adjustment action of expection, and warning direct action represents that physical parameter adjusting device performs the inverse operations that the parameter of expecting regulates action.Such as, when selected indicated value upper limit alarm, during direct action, compressor is opened during Temperature displaying value PV > alarm set point POINT, close compressor during PV < POINT-HYS, negative actuation is then the close compressor when PV > alarm set point POINT, opens compressor during PV < POINT-HYS.
In this enforcement, the selection of type of alarm is summarized as table 1 is also often kind of type of alarm letter designation, and wherein in table 1, outbound course is just namely represent warning direct action, and outbound course is reciprocal representation warning negative actuation:
Table 1 type of alarm option table
In the present embodiment, as shown in Figure 8, wherein D represents deviation (PV-SP) to the course of action of often kind of type of alarm.
The corresponding same or analogous parts of same or analogous label;
Describe in accompanying drawing position relationship for only for exemplary illustration, the restriction to this patent can not be interpreted as;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (5)
1. an environmental physical parameter control method, is characterized in that, comprises the following steps:
S1: determine environmental physical parameter preset value SP, environmental physical parameter alarming value POINT and not sensing zone region HYS, and set type of alarm;
S2: the environmental physical parameter PV gathering current environment;
S3: selected type of alarm, current environmental physical parameter PV and environmental physical parameter preset value SP, environmental physical parameter alarming value POINT and not sensing zone region HYS are compared thus allows the start and stop of environmental physical parameter regulating device, wherein when PV arrives SP, not make environmental physical parameter regulating device stop immediately or start, but arrange one from SP to POINT size be HYS buffer zone between to increase the time interval of environmental physical parameter regulating device start and stop, make the infrequently start and stop of environmental physical parameter regulating device.
2. environmental physical parameter control method according to claim 1, it is characterized in that, described environmental physical parameter is temperature, humidity, intensity of illumination, UV intensity, gas concentration lwevel, carbonomonoxide concentration, oxygen concentration, concentration of hydrogen sulfide, nitrogen gas concn, oxygen level or air pressure in current environment.
3. environmental physical parameter control method according to claim 2, it is characterized in that, the type of alarm in described step S1 comprises indicated value upper limit alarm, indicated value lower limit is reported to the police, upper deviation is reported to the police, the lower limit of variation is reported to the police, bound deviation range is reported to the police outward and report to the police in bound deviation range.
4. environmental physical parameter control method according to claim 3, is characterized in that, the detailed process of described step S3 comprises following Selective type:
1) selected type of alarm is the indicated value upper limit and warning direct action and without time standby, if PV > is POINT, environmental physical parameter regulating device is opened; If PV < is POINT-HYS, environmental physical parameter regulating device quits work; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
2) selected type of alarm is the indicated value upper limit and warning negative actuation and without time standby, if PV > is POINT, environmental physical parameter regulating device quits work; If PV < is POINT-HYS, environmental physical parameter regulating device is opened; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
3) selected type of alarm be the indicated value upper limit and warning direct action and have standby time, if PV > is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
4) selected type of alarm be the indicated value upper limit and warning negative actuation and have standby time, if PV > is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV < POINT and PV > POINT-HYS environmental physical parameter regulating device keep current state;
5) selected type of alarm is indicated value lower limit and warning direct action and without time standby, if PV < is POINT, environmental physical parameter regulating device is opened; If PV > is POINT+HYS, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
6) selected type of alarm is indicated value lower limit and warning negative actuation and without time standby, if PV < is POINT, environmental physical parameter regulating device quits work; If PV > is POINT+HYS, environmental physical parameter regulating device is opened; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
7) selected type of alarm be indicated value lower limit and warning direct action and have standby time, if PV < is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; PV > POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
8) selected type of alarm be indicated value lower limit and warning negative actuation and have standby time, if PV < is POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV < is POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > POINT and PV < POINT+HYS environmental physical parameter regulating device keep current state;
9) selected type of alarm is upper deviation and warning direct action and without time standby, if PV > is SP+POINT, environmental physical parameter regulating device is opened; If PV < is SP+POINT-HYS, environmental physical parameter regulating device quits work; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
10) selected type of alarm is upper deviation and warning negative actuation and without time standby, if PV > is SP+POINT, environmental physical parameter regulating device quits work; If PV < is SP+POINT-HYS, environmental physical parameter regulating device is opened; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
11) selected type of alarm be upper deviation and warning direct action and have standby time, if PV > is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device is opened; If PV < is SP+POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
12) selected type of alarm be upper deviation and warning negative actuation and have standby time, if PV > is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV < is SP+POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV < SP+POINT and PV > SP+POINT-HYS environmental physical parameter regulating device keep current state;
13) selected type of alarm is the lower limit of variation and warning direct action and without time standby, if PV < is SP+POINT, environmental physical parameter regulating device is opened; If PV > is SP+POINT+HYS, environmental physical parameter regulating device quits work; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
14) selected type of alarm is the lower limit of variation and warning negative actuation and without time standby, if PV < is SP+POINT, environmental physical parameter regulating device quits work; If PV > is SP+POINT+HYS, environmental physical parameter regulating device is opened; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
15) selected type of alarm be the lower limit of variation and warning direct action and have standby time, if PV < is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; If PV > is SP+POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quits work; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
16) selected type of alarm be the lower limit of variation and warning negative actuation and have standby time, if PV < is SP+POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device quits work; If PV > is SP+POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device is opened; If PV > SP+POINT and PV < SP+POINT+HYS environmental physical parameter regulating device keep current state;
17) selected type of alarm is the outer and warning direct action of bound deviation range and without ， Ruo ∣ PV-SP ∣ > POINT time standby, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣≤POINT-HYS, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣≤POINT Qie ∣ PV-SP ∣ > POINT-HYS environmental physical parameter regulating device keep current state;
18) selected type of alarm be the outer and warning direct action of bound deviation range and have standby time; if ∣ PV-SP ∣ > POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value has at least with setting value and once intersects, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣≤POINT-HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣≤POINT Qie ∣ PV-SP ∣ > POINT-HYS environmental physical parameter regulating device keep current state;
19) selected type of alarm is in bound deviation range and warning direct action and without ， Ruo ∣ PV-SP ∣≤POINT time standby, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣ >=POINT+HYS, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣ > POINT Qie ∣ PV-SP ∣≤POINT-HYS environmental physical parameter regulating device keep current state;
20) selected type of alarm is in bound deviation range and warning direct action and when having standby; if ∣ PV-SP is ∣≤POINT, and environmental physical parameter displayed value PV was after arriving setting value SP, namely displayed value had at least with setting value and once intersected, and environmental physical parameter regulating device is opened; Ruo ∣ PV-SP ∣ >=POINT+HYS, and after displayed value and setting value intersect, environmental physical parameter regulating device quit work ， Ruo ∣ PV-SP ∣ > POINT Qie ∣ PV-SP ∣≤POINT-HYS environmental physical parameter regulating device keep current state;
Wherein, after " standby " expression PV arrives SP, environmental physical parameter regulating device just had start stop operation, and " having standby " represents the constraint by " standby " this condition, and " without standby " represents by the constraint of " standby " this condition; Warning direct action represents that physical parameter adjusting device performs the parameter adjustment action of expection, and warning negative actuation is the inverse operation of warning direct action.
5. the environmental physical parameter control method according to any one of claim 1-4, it is characterized in that, described environmental physical parameter regulating device is the unit of the some or all of composition control before cryogenic compressor, evaporator, condenser/evaporator, relay, contactor, compressor, blower fan, expansion valve in solenoid valve or auxiliary cooling solenoid valve.
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| CN113323856A (en) * | 2021-06-16 | 2021-08-31 | 常州市威硕自动化科技有限公司 | EVT-based combinational logic control switch signal method |
| CN113790783A (en) * | 2021-09-16 | 2021-12-14 | 四川蜀羊防水材料有限公司 | Method and system for controlling thickness and weight of asphalt coiled material product |
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