CN112393811B - Temperature deviation alarm control method and device, electronic equipment and storage medium - Google Patents
Temperature deviation alarm control method and device, electronic equipment and storage medium Download PDFInfo
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- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
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Abstract
The invention provides a temperature deviation alarm control method, a temperature deviation alarm control device, electronic equipment and a storage medium, wherein set temperature data and actually measured temperature data are acquired; when the equipment is started or the set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered; calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data; after the shielding state is finished, performing alarm control according to preset alarm conditions; not only can prevent false alarm in normal temperature rising and reducing process when the test box is started or high and low temperature is switched, but also can prevent failure of an alarm mechanism.
Description
Technical Field
The invention relates to the technical field of environmental tests, in particular to a temperature deviation alarm control method and device, electronic equipment and a storage medium.
Background
A proof box for carrying out environmental test when carrying out the experiment that needs control ambient temperature, can real-time detection temperature variation condition, and the difference between temperature and the preset temperature surpasss and predetermines the scope and will report to the police. In order to avoid alarm in the process of temperature rise and reduction (because the temperature rise and reduction needs a certain time, and the time exceeds a preset range, but the abnormal condition is not caused, and the alarm is not required) when the test box is started or is switched between high temperature and low temperature, a standby area (temperature area) can be arranged in a general test box, whether the temperature enters the standby area or not can be judged when the test box is started or is switched between the high temperature and the low temperature, the temperature rise and the temperature reduction are judged to be finished once the temperature enters the standby area, and then whether the temperature meets the alarm condition or not is judged in real time, and the alarm is given in time. For example, if the set temperature is 60 ℃ and the standby area is within a range of ± 0.5 ℃ around the set temperature, the temperature rise process is determined to be finished when the temperature rises to 59.5 ℃ after the test chamber is started, and thus, the temperature is determined to meet the alarm condition in real time.
This method has the following problems: when the temperature can not enter the standby area all the time, the alarm can not be given all the time, so that the alarm mechanism is disabled.
Disclosure of Invention
In view of the foregoing disadvantages of the prior art, an object of the embodiments of the present application is to provide a temperature deviation alarm control method, device, electronic device, and storage medium, which can avoid false alarm during normal temperature rising and cooling process when the test chamber is started or high-low temperature switching is performed, and can also avoid failure of the alarm mechanism.
In a first aspect, an embodiment of the present application provides a temperature deviation alarm control method, which is used for a test chamber, and includes the steps of:
acquiring set temperature data and actually measured temperature data;
when equipment is started or set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered;
calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data;
and after the shielding state is finished, performing alarm control according to a preset alarm condition.
In the temperature deviation alarm control method, the step of calculating the shielding time as the duration of the shielding state according to the set temperature data and the measured temperature data includes:
the masking time is calculated according to the following formula:
t=a*|T0-T1|+b
wherein T is the shielding time, T0 is the set temperature at the next moment after the equipment is started or after the set temperature is switched, T1 is the measured temperature at the next moment after the equipment is started or after the set temperature is switched, and a and b are two preset calculation parameters respectively.
In the temperature deviation alarm control method, if the set temperature is switched before the duration time of the shielding state reaches the shielding time, the shielding time is calculated again according to the set temperature data and the actually measured temperature data to serve as the target duration time of the shielding state, and the duration time of the shielding state is calculated again.
In the temperature deviation alarm control method, after the shielding state is finished, the step of performing alarm control according to a preset alarm condition includes:
calculating the absolute value of the difference between the set temperature and the measured temperature;
acquiring a first duration of a state that an absolute value of a difference between a measured temperature and a set temperature exceeds a preset primary alarm threshold value;
and if the absolute value of the difference between the measured temperature and the set temperature exceeds a preset primary alarm threshold value and the first duration time is longer than a preset first time threshold value, a primary alarm is sent out.
Further, after the shielding state is over, the step of performing alarm control according to a preset alarm condition further includes:
acquiring a second duration of a state that the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value;
and if the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value and the second duration time is longer than a preset second time threshold value, sending out a secondary alarm and stopping the machine.
Further, after the primary alarm is triggered, if the absolute value of the difference between the measured temperature and the set temperature returns to a value not exceeding a preset primary alarm threshold value, the shielding state is entered, and the shielding time is calculated according to the set temperature data and the measured temperature data and serves as the target duration of the shielding state.
In a second aspect, an embodiment of the present application provides a temperature deviation alarm control device, which is used for a test chamber, and includes:
the acquisition module is used for acquiring set temperature data and measured temperature data;
the shielding module is used for enabling the test box to enter a shielding state when the equipment is started or the set temperature is switched; in the shielding state, an alarm is not triggered;
the calculation module is used for calculating the shielding time as the target duration of the shielding state according to the set temperature data and the measured temperature data;
and the alarm module is used for carrying out alarm control according to preset alarm conditions after the shielding state is finished.
In the temperature deviation alarm control device, the calculation module calculates the shielding time according to the following formula:
t=a*|T0-T1|+b
wherein T is the shielding time, T0 is the set temperature at the next moment after the equipment is started or after the set temperature is switched, T1 is the measured temperature at the next moment after the equipment is started or after the set temperature is switched, and a and b are two preset calculation parameters respectively.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor and a memory, where the memory stores a computer program, and the processor is configured to execute the steps of the temperature deviation alarm control method by calling the computer program stored in the memory.
In a fourth aspect, the present application provides a storage medium, on which a computer program is stored, where the computer program runs the steps of the temperature deviation alarm control method when executed by a processor.
Has the advantages that:
according to the temperature deviation alarm control method, the temperature deviation alarm control device, the electronic equipment and the storage medium, set temperature data and actually measured temperature data are obtained; when the equipment is started or the set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered; calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data; after the shielding state is finished, performing alarm control according to preset alarm conditions; not only can prevent false alarm in normal temperature rising and reducing process when the test box is started or high and low temperature is switched, but also can prevent failure of an alarm mechanism.
Drawings
Fig. 1 is a flowchart of a temperature deviation alarm control method according to an embodiment of the present disclosure.
Fig. 2 is a block diagram of a temperature deviation alarm control device according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 4 is a graph of an exemplary set temperature.
FIG. 5 is a graph of exemplary measured and set temperatures.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not construed as indicating or implying relative importance.
Referring to fig. 1, an embodiment of the present application provides a temperature deviation alarm control method for test chambers (including, but not limited to, temperature test chambers, temperature and humidity test chambers, aging test chambers, and other environmental test chambers), including the steps of:
A1. acquiring set temperature data and actually measured temperature data;
A2. when the equipment is started or the set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered;
A3. calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data;
A4. and after the shielding state is finished, performing alarm control according to a preset alarm condition.
By using the control method, when the equipment is started or the set temperature is switched (for example, at the time of t0 in fig. 4, the set temperature is switched from low temperature Tl to high temperature Th), the test box enters a shielding state, no alarm is given in the shielding state, so that false alarm in the normal temperature rising and cooling processes when the equipment is started or the set temperature is switched is avoided, when the duration time of the shielding state reaches the shielding time obtained by calculation, the shielding state is ended, and at the moment, the test box enters a protection state, and in the protection state, alarm control is performed according to the preset alarm condition.
The set temperature is a preset target temperature, and the measured temperature is a temperature measured by a sensor of the test chamber.
Specifically, step A3 includes:
the masking time is calculated according to the following formula:
t=a*|T0-T1|+b （1）
wherein T is the shielding time, T0 is the set temperature at the next moment after the equipment is started or after the set temperature is switched, T1 is the measured temperature at the next moment after the equipment is started or after the set temperature is switched, and a and b are two preset calculation parameters respectively.
After the equipment is started or set temperature is switched, the heating system or refrigeration work enables the temperature in the test box to be increased or reduced, a certain time is required in the process of increasing or reducing the temperature, and the required time is in direct proportion to the temperature difference before and after starting or the temperature difference before and after switching; if only simple setting a fixed shielding time, if the shielding time undersize that sets up, when the shielding state was ended, still be in the process that normally rises, cool down, lead to the wrong report to be alert easily, if the shielding time that sets up is too big, then still be in the shielding state after the process that normally rises, cool down, lead to in time discovering the overtemperature condition easily and reporting to the police to it is impaired to lead to the proof box. Here, the shielding time is calculated through the formula (1), wherein the larger the temperature difference between the set temperature and the measured temperature is, the longer the duration is, and the reasonable length of the shielding time can be ensured by setting appropriate values of a and b; the value a is related to the power of the refrigerating and heating system of the test chamber, the larger the power is, the smaller the value a is, the optimal values of a and b can be determined through a few experiments, and the values of a and b can be preferentially adopted in later experiments.
Taking fig. 5 as an example, in the figure, a is a change curve of a set temperature, b is a change curve of an actually measured temperature, the set temperature is Tl before time T0, the set temperature is switched at time T0, the set temperature is switched from Tl to Th, and the masking time is calculated by using formula (1) at the next time point of time T0 (i.e., the time point of the first actually measured temperature collected after time T0), at this time, T0= Tl (assuming that the actually measured temperature before time T0 is equal to the set temperature), and T1= Th, T = a | Tl-Th | + b. When the shielding state is finished (namely, when the duration of the shielding state reaches the shielding time t), the normal temperature rise process is basically finished.
In some experiments, the set temperature may be frequently switched, and the set temperature may be switched when the duration of the shielding state has not reached the shielding time t. Therefore, if the set temperature is switched before the duration of the shielding state reaches the shielding time, the shielding time is recalculated as the target duration of the shielding state according to the set temperature data and the measured temperature data, and the duration of the shielding state is recalculated. That is, each time the set temperature is switched, regardless of whether it was in the shield state before, the shield state is entered and the shield time is recalculated as the target duration, and the calculation of the duration of the shield state is restarted. Thus, when the set temperature retention time after a certain switching is sufficiently long, it is also sufficient to ensure the shielding time thereof.
In some embodiments, a standby area having a certain width centered on the set temperature may be provided, and the shielding state may be exited (i.e., the shielding state may be ended) as long as one of two conditions, that is, the "duration of the shielding state reaches the shielding time t" and the "measured temperature enters the standby area" is satisfied. When the condition that the actually measured temperature enters the standby area is met, the shielding state can be finished in time, so that the alarm can be given in time and corresponding protective measures (such as shutdown) can be taken when the serious overtemperature phenomenon occurs in the follow-up process, and the safety of equipment can be better protected. The width of the standby area can be a preset width value, for example, the width value is 1 ℃, the upper and lower boundaries of the standby area are T +0.5 ℃ and T-0.5 ℃, wherein T is a set temperature; the width of the standby area may also be a preset proportional value of the set temperature, for example, if the preset proportional value is 10%, the upper and lower boundaries of the standby area are (1 + 5%) T, (1-5%) T, where T is the set temperature.
Specifically, when the duration of the masking state reaches the masking time t, the masking state ends. The preset alarm conditions comprise a first-level alarm condition: the absolute value of the difference between the measured temperature and the set temperature exceeds a preset primary alarm threshold value, and the duration (of the state that the absolute value of the difference between the measured temperature and the set temperature exceeds the preset primary alarm threshold value) is longer than a preset first duration. Step A4 thus comprises:
A401. calculating the absolute value of the difference between the set temperature and the measured temperature;
A402. acquiring a first duration of a state that an absolute value of a difference between a measured temperature and a set temperature exceeds a preset primary alarm threshold value;
A403. and if the absolute value of the difference between the measured temperature and the set temperature exceeds a preset primary alarm threshold value and the first duration time is longer than a preset first time threshold value, a primary alarm is sent out.
Namely the relation between the measured temperature and the set temperature meets the primary alarm condition, a primary alarm is sent out, wherein the primary alarm signal can be a sound and/or light signal.
Further, the preset alarm conditions further include a secondary alarm condition: the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value, and the duration (of the state that the absolute value of the difference between the measured temperature and the set temperature exceeds the preset secondary alarm threshold value) is longer than a preset second duration. Step A4 thus also comprises:
A404. acquiring a second duration of a state that the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value;
A405. and if the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value and the second duration is longer than a preset second time threshold value, sending out secondary alarm and stopping the machine.
Namely the relation between the measured temperature and the set temperature meets the condition of secondary alarm, the secondary alarm is sent out, wherein the signal of the secondary alarm can be a sound and/or light signal. If only the first-level alarm condition is met, emergency measures (such as shutdown) are generally not needed, only the first-level alarm is sent out so that workers can know the alarm, and the workers can automatically judge whether the emergency measures need to be taken or not; when the secondary alarm condition is met, the abnormal degree is serious, the equipment is possibly damaged, and the automatic shutdown is realized.
It should be noted that when the first-level alarm condition and the second-level alarm condition are simultaneously met, only the second-level alarm is sent out, and the machine is stopped.
Further, after triggering the primary alarm, if the absolute value of the difference between the measured temperature and the set temperature returns to be not more than a preset primary alarm threshold value, entering a shielding state, and calculating shielding time according to the set temperature data and the measured temperature data to be used as target duration of the shielding state.
In fact, the absolute value of the difference between the measured temperature and the set temperature can be recovered from exceeding the preset primary alarm threshold value to not exceeding the preset primary alarm threshold value, generally, the temperature at the moment is in a controllable state, and the condition that the primary alarm condition is met for many times can also repeatedly occur before the temperature enters a stable state, so that the primary alarm is caused for many times; for example, in fig. 5, after the measured temperature b enters the shielding state after the set temperature is switched, after the shielding time t elapses, there are situations of multiple vertical oscillations, and the oscillation amplitude becomes smaller and smaller, and a first-order alarm may be caused during the previous oscillations. Here, if the absolute value of the difference between the measured temperature and the set temperature is returned to a value not exceeding the preset primary alarm threshold value, the shielding state is entered, and the primary alarm can be prevented from being frequently sent out. Wherein, assuming that the primary alarm threshold is Δ T, equation (1) may be transformed to T = a × Δ T + b when calculating the masking time.
Further, after the secondary shielding state is finished and before the setting is switched again, if the condition of triggering the primary alarm still exists, it indicates that the temperature is difficult to enter the stable state, and the correctness of the test result may be affected, at this time, the system may be stopped or when the number of times of triggering the primary alarm (the number of times of triggering the primary alarm after the equipment is started or after the setting temperature is switched to the next setting temperature) reaches a preset number threshold value, the system may be stopped. For the latter method, for example, the preset number threshold is 3, after the equipment is started or the set temperature is switched, the equipment enters a shielding state, after the shielding state is finished, the first-stage alarm is triggered and the equipment enters the shielding state again, after the shielding state is finished, the second-stage alarm is triggered and the equipment enters the shielding state again, and after the shielding state is finished, the equipment is stopped if the third-stage alarm is triggered.
According to the temperature deviation alarm control method, the set temperature data and the measured temperature data are obtained; when the equipment is started or the set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered; calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data; after the shielding state is finished, performing alarm control according to a preset alarm condition; not only can prevent false alarm in normal temperature rising and reducing process when the test box is started or high and low temperature is switched, but also can prevent failure of an alarm mechanism.
Referring to fig. 2, an embodiment of the present application further provides a temperature deviation alarm control device, which is used for a test chamber, and includes an obtaining module 1, a shielding module 2, a calculating module 3, and an alarm module 4;
the device comprises an acquisition module 1, a data processing module and a data processing module, wherein the acquisition module is used for acquiring set temperature data and actually measured temperature data;
the shielding module 2 is used for enabling the test box to enter a shielding state when equipment is started or set temperature is switched; in the shielding state, no alarm is triggered;
the calculating module 3 is used for calculating the shielding time as the target duration of the shielding state according to the set temperature data and the measured temperature data;
and the alarm module 4 is used for carrying out alarm control according to a preset alarm condition after the shielding state is finished.
Specifically, the calculation module calculates the masking time according to the following formula:
t=a*|T0-T1|+b
wherein T is the shielding time, T0 is the set temperature at the next moment after the equipment is started or after the set temperature is switched, T1 is the measured temperature at the next moment after the equipment is started or after the set temperature is switched, and a and b are two preset calculation parameters respectively.
When the duration of the shielding state reaches the shielding time t, the shielding state is ended, and the shielding module 2 makes the test chamber exit the shielding state. Therefore, after bringing the test chamber into the shielding state, the shielding module 2 also calculates the duration of the shielding state.
In some experiments, the set temperature may be frequently switched, and the set temperature may be switched when the duration of the shielding state has not reached the shielding time t. Therefore, if the set temperature is switched before the duration of the shielding state reaches the shielding time, the calculating module 3 calculates the shielding time as the target duration of the shielding state again according to the set temperature data and the measured temperature data, and the shielding module 2 calculates the duration of the shielding state again. That is, each time the set temperature is switched, regardless of whether it was in the shield state before, the shield state is entered and the shield time is recalculated as the target duration, and the calculation of the duration of the shield state is restarted. Therefore, when the set temperature holding time after a certain switching is sufficiently long, it is also sufficient to ensure the shielding time thereof.
In some embodiments, a standby area having a certain width centered on the set temperature may be provided, and the shielding module 2 may exit the shielding state (i.e., end the shielding state) of the test chamber as long as one of two conditions, that is, the "duration of the shielding state reaches the shielding time t" and "the measured temperature enters the standby area", is satisfied. When the condition that the actually measured temperature enters the standby area is met, the shielding state can be finished in time, so that the alarm can be given in time and corresponding protective measures (such as shutdown) can be taken when the serious overtemperature phenomenon occurs in the follow-up process, and the safety of equipment can be better protected. The width of the standby area can be a preset width value, for example, the width value is 1 ℃, the upper and lower boundaries of the standby area are T +0.5 ℃ and T-0.5 ℃, wherein T is a set temperature; the width of the standby area may also be a preset proportional value of the set temperature, for example, if the preset proportional value is 10%, the upper and lower boundaries of the standby area are (1 + 5%) T, (1-5%) T, where T is the set temperature.
Specifically, the preset alarm conditions include a first-level alarm condition: the absolute value of the difference between the measured temperature and the set temperature exceeds a preset primary alarm threshold value, and the duration (of the state that the absolute value of the difference between the measured temperature and the set temperature exceeds the preset primary alarm threshold value) is longer than a preset first duration. Therefore, when the alarm module 4 carries out alarm control according to the preset alarm condition,
calculating the absolute value of the difference between the set temperature and the measured temperature;
acquiring a first duration of a state that an absolute value of a difference between a measured temperature and a set temperature exceeds a preset primary alarm threshold value;
and if the absolute value of the difference between the measured temperature and the set temperature exceeds a preset primary alarm threshold value and the first duration time is longer than a preset first time threshold value, a primary alarm is sent out.
Further, the preset alarm conditions further include a secondary alarm condition: the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value, and the duration (of the state that the absolute value of the difference between the measured temperature and the set temperature exceeds the preset secondary alarm threshold value) is longer than a preset second duration. Therefore, when the step alarm module 4 carries out alarm control according to the preset alarm condition, the step alarm module also carries out alarm control
Acquiring a second duration of a state that the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value;
and if the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value and the second duration time is longer than a preset second time threshold value, sending out a secondary alarm and stopping the test box.
If only the first-level alarm condition is met, emergency measures (such as shutdown) are generally not needed, and only the first-level alarm is sent out so that workers can know the emergency measures, and the workers can automatically judge whether the emergency measures need to be taken or not; when the secondary alarm condition is met, the abnormal degree is serious, and equipment is possibly damaged, so that the automatic shutdown is realized.
It should be noted that when the first-level alarm condition and the second-level alarm condition are simultaneously met, only the second-level alarm is sent out, and the machine is stopped.
Further, after the primary alarm is triggered, if the absolute value of the difference between the measured temperature and the set temperature returns to be not more than the preset primary alarm threshold value, the shielding module 2 enables the test box to enter a shielding state, and the calculating module 3 calculates the shielding time as the target duration of the shielding state according to the set temperature data and the measured temperature data.
In fact, the absolute value of the difference between the measured temperature and the set temperature can be recovered from exceeding the preset primary alarm threshold value to not exceeding the preset primary alarm threshold value, generally indicating that the temperature is in a controllable state at the moment, and before the temperature enters a stable state, the situation that the primary alarm condition is met for many times can also be repeated, so that the primary alarm is caused for many times; for example, in fig. 5, after the measured temperature b enters the shielding state after the set temperature is switched, after the shielding time t elapses, there is a situation of multiple vertical oscillations, and the oscillation amplitude becomes smaller and smaller, and a first-order alarm may be caused during the previous oscillations. Here, if the absolute value of the difference between the measured temperature and the set temperature is returned to be not more than the preset primary alarm threshold value, the shielding state is entered, and the primary alarm can be prevented from being frequently sent out. Wherein, assuming that the primary alarm threshold is Δ T, the formula (1) may be converted to T = a × Δ T + b when calculating the masking time.
Further, after the secondary shielding state is ended and before the setting is switched again, if the condition of triggering the primary alarm still exists, it indicates that the temperature is difficult to enter the stable state, and the correctness of the test result may be affected, at this time, the alarm module 4 may stop the test chamber or stop the test chamber when the number of times of triggering the primary alarm (the number of times of triggering the primary alarm after the equipment is started or after the setting temperature is switched to the next setting temperature) reaches a preset number threshold.
Therefore, the temperature deviation alarm control device acquires the set temperature data and the measured temperature data; when equipment is started or set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered; calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data; after the shielding state is finished, performing alarm control according to a preset alarm condition; not only can prevent false alarm in normal temperature rising and reducing process when the test box is started or high and low temperature is switched, but also can prevent failure of an alarm mechanism.
Referring to fig. 3, an electronic device 100 according to an embodiment of the present application further includes a processor 101 and a memory 102, where the memory 102 stores a computer program, and the processor 101 is configured to execute the steps of the temperature deviation alarm control method by calling the computer program stored in the memory 102.
The processor 101 is electrically connected to the memory 102. The processor 101 is a control center of the electronic device 100, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or calling a computer program stored in the memory 102 and calling data stored in the memory 102, thereby performing overall monitoring of the electronic device.
The memory 102 may be used to store computer programs and data. The memory 102 stores computer programs containing instructions executable in the processor. The computer program may constitute various functional modules. The processor 101 executes various functional applications and data processing by calling a computer program stored in the memory 102.
In this embodiment, the processor 101 in the electronic device 100 loads instructions corresponding to one or more processes of the computer program into the memory 102, and the processor 101 runs the computer program stored in the memory 102 according to the following steps, so as to implement various functions: taking set temperature data and actually measured temperature data; when the equipment is started or the set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered; calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data; and after the shielding state is finished, performing alarm control according to a preset alarm condition.
According to the above, the electronic device obtains the set temperature data and the measured temperature data; when the equipment is started or the set temperature is switched, entering a shielding state; in the shielding state, no alarm is triggered; calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data; after the shielding state is finished, performing alarm control according to a preset alarm condition; not only can prevent false alarm in normal temperature rising and reducing process when the test box is started or is switched between high temperature and low temperature, but also can prevent failure of an alarm mechanism.
An embodiment of the present application further provides a storage medium, on which a computer program is stored, where the computer program runs the steps of the temperature deviation alarm control method when being executed by a processor, so as to implement the following functions: acquiring set temperature data and actually measured temperature data; when the equipment is started or the set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered; calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data; and after the shielding state is finished, performing alarm control according to a preset alarm condition.
The storage medium may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, which are substantially the same as the present invention.
Claims (8)
1. A temperature deviation alarm control method is used for a test chamber and is characterized by comprising the following steps:
acquiring set temperature data and actually measured temperature data;
when equipment is started or set temperature is switched, entering a shielding state; in the shielding state, an alarm is not triggered;
calculating shielding time as target duration of the shielding state according to the set temperature data and the measured temperature data;
after the shielding state is finished, performing alarm control according to a preset alarm condition;
the step of calculating the shielding time as the duration of the shielding state according to the set temperature data and the measured temperature data comprises:
the masking time is calculated according to the following formula:
t=a*|T0-T1|+b
wherein T is the shielding time, T0 is the set temperature at the next moment after the equipment is started or after the set temperature is switched, T1 is the measured temperature at the next moment after the equipment is started or after the set temperature is switched, and a and b are two preset calculation parameters respectively.
2. The temperature deviation alarm control method according to claim 1, wherein if the set temperature is switched before the duration of the shielding state reaches the shielding time, the shielding time is recalculated as the target duration of the shielding state according to the set temperature data and the measured temperature data, and the duration of the shielding state is recalculated.
3. The temperature deviation alarm control method according to claim 1, wherein the step of performing alarm control according to a preset alarm condition after the shielding state is ended comprises:
calculating the absolute value of the difference between the set temperature and the measured temperature;
acquiring a first duration of a state that an absolute value of a difference between an actually measured temperature and a set temperature exceeds a preset primary alarm threshold value;
and if the absolute value of the difference between the measured temperature and the set temperature exceeds a preset primary alarm threshold value and the first duration time is longer than a preset first time threshold value, a primary alarm is sent out.
4. The temperature deviation alarm control method according to claim 3, wherein the step of performing alarm control according to a preset alarm condition after the shielding state is ended further comprises:
acquiring a second duration of a state that the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value;
and if the absolute value of the difference between the measured temperature and the set temperature exceeds a preset secondary alarm threshold value and the second duration time is longer than a preset second time threshold value, sending out a secondary alarm and stopping the machine.
5. The temperature deviation alarm control method according to claim 3, wherein after the primary alarm is triggered, if the absolute value of the difference between the measured temperature and the set temperature returns to a value not exceeding a preset primary alarm threshold value, the shielding state is entered, and the shielding time is calculated according to the set temperature data and the measured temperature data as the target duration of the shielding state.
6. A temperature deviation alarm control device for a test chamber, comprising:
the acquisition module is used for acquiring set temperature data and measured temperature data;
the shielding module is used for enabling the test box to enter a shielding state when the equipment is started or the set temperature is switched; in the shielding state, no alarm is triggered;
the calculation module is used for calculating the shielding time as the target duration of the shielding state according to the set temperature data and the measured temperature data;
the alarm module is used for carrying out alarm control according to preset alarm conditions after the shielding state is finished;
the calculation module calculates the masking time according to the following formula:
t=a*|T0-T1|+b
wherein T is the shielding time, T0 is the set temperature at the next moment after the equipment is started or after the set temperature is switched, T1 is the measured temperature at the next moment after the equipment is started or after the set temperature is switched, and a and b are two preset calculation parameters respectively.
7. An electronic device, characterized by comprising a processor and a memory, wherein a computer program is stored in the memory, and the processor is configured to execute the steps of the temperature deviation alarm control method according to any one of claims 1 to 5 by calling the computer program stored in the memory.
8. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the temperature deviation alarm control method according to any of claims 1-5.
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