CN108871828A - A kind of equipment overtemperature test method and device - Google Patents
A kind of equipment overtemperature test method and device Download PDFInfo
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- CN108871828A CN108871828A CN201810763631.7A CN201810763631A CN108871828A CN 108871828 A CN108871828 A CN 108871828A CN 201810763631 A CN201810763631 A CN 201810763631A CN 108871828 A CN108871828 A CN 108871828A
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- temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of equipment overtemperature test methods, are used for coal mine trunk conveyor, the method includes：Judge whether to receive on-test instruction；If so, obtaining preset test temperature value；Judge whether the test temperature value is greater than the first preset threshold；If so, sounding an alarm and stopping.The embodiment of the invention also discloses a kind of equipment overtemperature test devices.Using the embodiment of the present invention; directly acquire preset test temperature value; then high temperature protection test is carried out according to test temperature value; it avoids and removes temperature sensor; and then service life of temperature sensor can be extended, while also be high methane, the place for not having experimental condition such as dusty carries out high temperature protection and tests to provide feasibility.
Description
Technical field
The present invention relates to a kind of test method and devices, are more particularly to a kind of equipment overtemperature test method and device.
Background technique
Apparatus overheat in order to prevent, different parts mounting temperature sensor of the meeting in equipment, and in real time to temperature sensing
The temperature signal of device is checked.If temperature signal is more than preset threshold, stops and issue alarm signal, if being less than default threshold
Value, continues checking temperature signal.
In order to avoid the malfunction of equipment, overtemperature prote test can be carried out to the shutdown system of equipment.If needing set temperature
When threshold value is lower than 100 DEG C, current test method is to remove temperature sensor and place in the hot water, and the temperature of hot water is higher than
Temperature signal after temperature sensor detects temperature, can be issued PLC (Programmable Logic by preset threshold
Controller, programmable logic controller (PLC)) CPU, CPU judges that temperature signal has been more than preset threshold, can issue parking and refer to
It enables.If set temperature threshold value is needed to be higher than 100 DEG C, hot water is replaced with open fire or electric heating, reaches test temperature to realize
The purpose of given threshold.
But the prior art removes temperature sensor, when removal sensor is easy to make when carrying out overtemperature prote test
Adult is damage, makes its lost of life；Therefore, temperature sensor service life shorter technical problem exists in the prior art.
Summary of the invention
Technical problem to be solved by the present invention lies in a kind of equipment overtemperature test method and device is provided, to extend temperature
Spend sensor life-time.
The present invention is to solve above-mentioned technical problem by the following technical programs：
The embodiment of the invention provides a kind of equipment overtemperature test methods, are used for coal mine trunk conveyor, the method
Including：
Judge whether to receive on-test instruction；
If so, obtaining preset test temperature value；
Judge whether the test temperature value is greater than the first preset threshold；
If so, sounding an alarm and stopping.
Optionally, in the case where the result for judging whether to receive on-test instruction is no, the method is also
Including：
Judge received temperature signal whether less than the second preset threshold, wherein the temperature signal is temperature substation hair
It send；
If receiving the temperature signal less than second preset threshold, judge whether the temperature information is greater than first
Preset threshold is sounded an alarm and is stopped if the temperature information is greater than the first preset threshold；If the temperature information is no more than the
One preset threshold returns to execution and judges the step of whether received temperature signal is less than the second preset threshold；
If receiving the temperature signal not less than second preset threshold, the police of open sensor or damage is issued
Report.
Optionally, the temperature signal is：
What temperature substation was sent, the temperature analog signal of treated temperature sensor measurement.
Optionally, while obtaining preset test temperature value, pause receives temperature signal.
Optionally, the method also includes：
Judge whether to receive the instruction that test terminates or test suspends；
If so, receiving temperature signal, and judge received temperature signal whether less than the second preset threshold, wherein described
Temperature signal is that temperature substation is sent；
If receiving the temperature signal less than second preset threshold, judge whether the temperature information is greater than first
Preset threshold is sounded an alarm and is stopped if the temperature information is greater than the first preset threshold；If the temperature information is no more than the
One preset threshold returns to the step of executing the reception temperature signal；
If receiving the temperature signal not less than second preset threshold, the police of open sensor or damage is issued
Report.
The embodiment of the invention provides a kind of equipment overtemperature test devices, are used for coal mine trunk conveyor, described device
Including：
First judgment module receives on-test instruction for judging whether；
Module is obtained, for obtaining preset test in the case where the judging result of the first judgment module, which is, is
Temperature value；
Second judgment module, for judging whether the test temperature value is greater than the first preset threshold；
First alarm module, for sounding an alarm simultaneously in the case where the judging result of the first judgment module, which is, is
Parking.
Optionally, in the case where the result of the first judgment module is no, described device further includes：
Third judgment module, for judging received temperature signal whether less than the second preset threshold, wherein the temperature
Signal is that temperature substation is sent；
4th judgment module, for judging the temperature in the case where the judging result of the third judgment module, which is, is
Whether degree information is greater than the first preset threshold, if the temperature information is greater than the first preset threshold, sounds an alarm and stops；If institute
Temperature information is stated no more than the first preset threshold, execution is returned and judges received temperature signal whether less than the second preset threshold
Step；
Second alarm module, if issuing and passing for connecing in the case where the judging result of the third judgment module is no
The alarm of sensor open circuit or damage.
Optionally, the temperature signal is：
What temperature substation was sent, the temperature analog signal of treated temperature sensor measurement.
Optionally, the acquisition module, is also used to：While obtaining preset test temperature value, pause receives temperature
Signal.
Optionally, described device further includes：
5th judgment module receives the instruction that test terminates or test suspends for judging whether；
6th judgment module, in the case where the judging result of the 5th judgment module, which is, is, receiving temperature letter
Number, and judging received temperature signal whether less than the second preset threshold, wherein the temperature signal is that temperature substation is sent
's.
7th decision block, for judging the temperature in the case where the judging result of the 6th judgment module, which is, is
Whether information is greater than the first preset threshold, if the temperature information is greater than the first preset threshold, sounds an alarm and stops；If described
Temperature information is not more than the first preset threshold, triggers the 6th judgment module；
Third alarm module, for issuing sensor in the case where the judging result of the 6th judgment module is no
The alarm of open circuit or damage.
The present invention has the following advantages that compared with prior art：
Using the embodiment of the present invention, preset test temperature value is directly acquired, high temperature is then carried out according to test temperature value
Protection test avoids and removes temperature sensor, and then can extend the service life of temperature sensor.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of equipment overtemperature test method provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of equipment overtemperature test device provided in an embodiment of the present invention.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
To solve prior art problem, the embodiment of the invention provides a kind of equipment overtemperature test method and device, below
Just a kind of equipment overtemperature test method provided in an embodiment of the present invention is introduced first.
Fig. 1 is a kind of flow diagram of equipment overtemperature test method provided in an embodiment of the present invention, as shown in Figure 1, with
In coal mine trunk conveyor, the method includes：
S101：Judge whether to receive on-test instruction；If so, executing S102.
Specifically, equipment is belt conveyor, in order to avoid the damage of belt conveyor high temperature, in the motor of belt conveyor
Temperature sensor, example have been respectively mounted on the electric wire of the ABC three-phase electricity of front axle, electric motor back shaft, motor, at the roller of belt conveyor
Such as, it can be thermocouple.Temperature sensor and the PLC of belt conveyor connection.
The PLC of belt conveyor judges whether current time has received the instruction of high temperature protection test, if having received
The instruction executes S102 step.
In practical applications, the instruction of high temperature protection test, can be clicked " test by user on the control panel of PLC
Start " button, automated system operation.
S102：Obtain preset test temperature value.
The PLC of belt conveyor obtains preset test temperature value, such as 90 DEG C.
S103：Judge whether the test temperature value is greater than the first preset threshold；If so, executing S104：
The PLC of belt conveyor judges that 90 DEG C are greater than 85 DEG C of the first preset threshold, execute S104 step.
S104：It sounds an alarm and stops.
Since 90 DEG C are greater than 85 DEG C of the first preset threshold, illustrate that the temperature at the roller of belt conveyor is excessively high, adhesive tape fortune
The instruction that the PLC of defeated machine is sounded an alarm and stopped, motor stop operating after receiving the instruction of parking.Belt conveyor
Brake gear, safety device synchronization action.
It is understood that when belt conveyor is there are when multiple temperature sensors, when in multiple temperature sensors
When one temperature signal is more than 85 DEG C, instruction that the PLC of belt conveyor can be sounded an alarm and be stopped.
Using embodiment illustrated in fig. 1 of the present invention, directly acquire preset test temperature value, then according to test temperature value into
The test of row high temperature protection, avoids and removes temperature sensor, and then can extend the service life of temperature sensor.
In addition, in practical applications, in the occasion of some need overtemperature prote test, experimental condition is not able to satisfy actual
Equipment working condition, and then will lead to and can not carry out overtemperature test to equipment.For example, the overtemperature alarm limit value of machine winding generally all exists
110 DEG C or more, if doing overtemperature test with water, temperature is not achieved, and if water temperature is not achieved, the best way is exactly to use
Fire.It is that will lead to fire or explosion in the place of high methane, coal dust with the roasting disadvantage of fire；Implement using shown in Fig. 1 of the present invention
Example, can improve the safety of production to avoid open fire is employed.
Furthermore in practical applications, also there is the mode of operation for replacing open fire using electric heating, using electric heating, try every time
Line, disassembling sensor are disconnected when testing, and be unfavorable for making full use of the service life of sensor；Importantly, if sensor
Nearby add even several hundred meters of power supply line again sometimes without suitable power supply, test process is comparatively laborious, using this hair
Bright embodiment illustrated in fig. 1 is only operated in the control system of equipment, and external hundreds of meters of power supply line is not needed, examination
It tests that process is simple, and then the operability of test can also be improved.
It is described in the case where the result of S101 step is no in a kind of specific embodiment of the embodiment of the present invention
Method further includes：
S105 (not shown)：Judge received temperature signal whether less than the second preset threshold, wherein the temperature
Signal is that temperature substation is sent；If so, executing S106 step；If it is not, executing S107 step；
Specifically, whether judging 90 DEG C of received temperature signal in the case where not receiving high temperature protection test instructions
Less than 300 DEG C of the second preset threshold；Obviously, 90 DEG C of received temperature signal less than 300 DEG C, execute S106 step.
It is emphasized that in the case that 300 DEG C of the second preset threshold is open sensors or damage, what PLC was shown
The minimum value of numerical value.
S106 (not shown)：If receiving the temperature signal less than second preset threshold, the temperature is judged
Whether degree information is greater than the first preset threshold, if the temperature information is greater than the first preset threshold, sounds an alarm and stops；If institute
Temperature information is stated no more than the first preset threshold, returns and executes S105 step.
Judge whether 90 DEG C of received temperature signal is greater than 85 DEG C of the first preset threshold, it is clear that 90 DEG C of temperature signal are greater than
First 85 DEG C of preset threshold, the instruction that the PLC of belt conveyor is sounded an alarm and stopped, motor is in the instruction for receiving parking
Afterwards, it stops operating.Brake gear, the safety device synchronization action of belt conveyor.
If received temperature signal is 60 DEG C, judge whether 60 DEG C of received temperature signal is greater than the first preset threshold 85
DEG C, it is clear that 60 DEG C of received temperature signal are not more than 85 DEG C of the first preset threshold, then continue to temperature signal, and judge to connect
Whether the temperature signal of receipts is less than the second preset threshold.
S107 (not shown)：If receiving the temperature signal not less than second preset threshold, sensing is issued
The alarm of device open circuit or damage.
If the temperature signal received is 350 DEG C, it is clear that the temperature signal received is 350 DEG C default not less than second
300 DEG C of threshold value, the PLC of belt conveyor issues the alarm of open sensor or damage.
In practical applications, the PLC of belt conveyor issues the alarm of open sensor or damage, can be sent out stopping
Vehicle instruction.
Using the above embodiment of the present invention, equipment can be carried out high in the case where not receiving high temperature protection test
Temperature protection.
In a kind of specific embodiment of the embodiment of the present invention, the temperature signal is：
What temperature substation was sent, the temperature analog signal of treated temperature sensor measurement.
Specifically, the temperature data of temperature sensor measurement equipment different parts, obtains analog signal, temperature substation is obtained
After analog signal, digitized processing is carried out to analog signal, the temperature data after progress digitized processing is then sent to glue
PLC with transporter.
Using the above embodiment of the present invention, the signal of available temperature sensor.
In a kind of specific embodiment of the embodiment of the present invention, while obtaining preset test temperature value, pause
Receive temperature signal.
Using the above embodiment of the present invention, the operating load of PLC can be reduced.
In a kind of specific embodiment of the embodiment of the present invention, the method also includes：
S108 (not shown)：Judge whether to receive the instruction that test terminates or test suspends.If so, executing
S109 step.
If having received the instruction that test terminates or test suspends, S109 step is continued to execute；If do not received
Test terminates or the instruction of experiment pause, continues to keep current state.
S109 (not shown)：Temperature signal is received, and judges received temperature signal whether less than the second default threshold
Value, wherein the temperature signal is that temperature substation is sent.If so, executing S1010 step；If it is not, executing S1011 step.
If received temperature signal is 83 DEG C, judge that 83 DEG C of temperature signal whether less than 300 DEG C of the second preset threshold, is shown
So, 83 DEG C of temperature signal less than 300 DEG C of the second preset threshold.
Specifically, the temperature data of temperature sensor measurement equipment different parts, obtains analog signal, temperature substation is obtained
After analog signal, digitized processing is carried out to analog signal, the temperature data after progress digitized processing is then sent to glue
PLC with transporter.
S1010 (not shown)：Judge whether the temperature information is greater than the first preset threshold, if the temperature information
Greater than the first preset threshold, sounds an alarm and stop；If the temperature information is not more than the first preset threshold, return described in executing
The step of receiving temperature signal；
Specifically, judging whether 83 DEG C of temperature signal is greater than 90 DEG C of the first preset threshold；Obvious 83 DEG C of temperature signal is not
Greater than 90 DEG C of the first preset threshold, illustrates that the temperature of equipment is normal, do not need to sound an alarm.Continue to the temperature letter of next round
Number, continue to judge received temperature signal whether less than the second preset threshold, i.e. execution S109 step.
In addition, if temperature signal is 93 DEG C, it is clear that 93 DEG C of temperature signal are greater than 90 DEG C of the first preset threshold, issue police
Cutoff command is reported and issues, so that equipment is stopped.
S1011 (not shown)：Issue the alarm of open sensor or damage.
When temperature signal is 483 DEG C, it is clear that when temperature signal is not less than 300 DEG C of the second preset threshold, issue sensor
The alarm of open circuit or damage.
Using the above embodiment of the present invention, can be terminated receiving test or the instruction of test pause after, continue pair
Equipment carries out high temperature protection.
Corresponding with embodiment illustrated in fig. 1 of the present invention, the embodiment of the invention also provides a kind of equipment overtemperature test devices.
Fig. 2 is a kind of structural schematic diagram of equipment overtemperature test device provided in an embodiment of the present invention, as shown in Fig. 2, with
In coal mine trunk conveyor, described device includes：
First judgment module 201 receives on-test instruction for judging whether；
Module 202 is obtained, for obtaining preset examination in the case where the judging result of the first judgment module, which is, is
Test temperature value；
Second judgment module 203, for judging whether the test temperature value is greater than the first preset threshold；
First alarm module 204, for sounding an alarm in the case where the judging result of the first judgment module, which is, is
And it stops.
Using embodiment illustrated in fig. 2 of the present invention, directly acquire preset test temperature value, then according to test temperature value into
The test of row high temperature protection, avoids and removes temperature sensor, and then can extend the service life of temperature sensor.
In a kind of specific embodiment of the embodiment of the present invention, in the situation that the result of the first judgment module is no
Under, described device further includes：
205 (not shown) of third judgment module, for judging received temperature signal whether less than the second default threshold
Value, wherein the temperature signal is that temperature substation is sent；
4th judgment module, 206 (not shown) is yes for the judging result in the third judgment module 205
In the case of, judge whether the temperature information is greater than the first preset threshold, if the temperature information is greater than the first preset threshold, hair
It alarm and stops out；If the temperature information is not more than the first preset threshold, the third judgment module 205 is triggered；
Second alarm module, 207 (not shown), if the judging result for connecing in the third judgment module 205 is
In the case where no, the alarm of open sensor or damage is issued.
Using the above embodiment of the present invention, equipment can be carried out high in the case where not receiving high temperature protection test
Temperature protection.
In a kind of specific embodiment of the embodiment of the present invention, the temperature signal is：
What temperature substation was sent, the temperature analog signal of treated temperature sensor measurement.
Using the above embodiment of the present invention, the signal of available temperature sensor.
In a kind of specific embodiment of the embodiment of the present invention, the acquisition module 202 is also used to：It is default obtaining
Test temperature value while, pause receive temperature signal.
Using the above embodiment of the present invention, the operating load of PLC can be reduced.
In a kind of specific embodiment of the embodiment of the present invention, described device further includes：
5th judgment module, 208 (not shown), for judging whether that receiving test terminates or test pause
Instruction；
6th judgment module, 209 (not shown) is yes for the judging result in the 5th judgment module 208
In the case of, temperature signal is received, and judge received temperature signal whether less than the second preset threshold, wherein the temperature letter
It number is that temperature substation is sent.
7th decision block, 2010 (not shown) is yes for the judging result in the 6th judgment module 209
In the case of, judge whether the temperature information is greater than the first preset threshold, if the temperature information is greater than the first preset threshold, hair
It alarm and stops out；If the temperature information is not more than the first preset threshold, the 6th judgment module 209 is triggered；
2011 (not shown) of third alarm module is no for the judging result in the 6th judgment module 209
In the case where, issue the alarm of open sensor or damage.
Using the above embodiment of the present invention, can be terminated receiving test or the instruction of test pause after, continue pair
Equipment carries out high temperature protection.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of equipment overtemperature test method, which is characterized in that it is used for coal mine trunk conveyor, the method includes：
Judge whether to receive on-test instruction；
If so, obtaining preset test temperature value；
Judge whether the test temperature value is greater than the first preset threshold；
If so, sounding an alarm and stopping.
2. a kind of equipment overtemperature test method according to claim 1, which is characterized in that judge whether to receive described
In the case that the result of on-test instruction is no, the method also includes：
Judge received temperature signal whether less than the second preset threshold, wherein the temperature signal is that temperature substation is sent；
If receiving the temperature signal less than second preset threshold, it is default to judge whether the temperature information is greater than first
Threshold value is sounded an alarm and is stopped if the temperature information is greater than the first preset threshold；If the temperature information is pre- no more than first
If threshold value, returns to execution and judge the step of whether received temperature signal is less than the second preset threshold；
If receiving the temperature signal not less than second preset threshold, the alarm of open sensor or damage is issued.
3. a kind of equipment overtemperature test method according to claim 2, which is characterized in that the temperature signal is：
What temperature substation was sent, the temperature analog signal of treated temperature sensor measurement.
4. a kind of equipment overtemperature test method according to claim 1, which is characterized in that obtaining preset test temperature
While value, pause receives temperature signal.
5. a kind of equipment overtemperature test method according to claim 1, which is characterized in that the method also includes：
Judge whether to receive the instruction that test terminates or test suspends；
If so, receiving temperature signal, and judge received temperature signal whether less than the second preset threshold, wherein the temperature
Signal is that temperature substation is sent；
If receiving the temperature signal less than second preset threshold, it is default to judge whether the temperature information is greater than first
Threshold value is sounded an alarm and is stopped if the temperature information is greater than the first preset threshold；If the temperature information is pre- no more than first
If threshold value, the step of executing the reception temperature signal is returned；
If receiving the temperature signal not less than second preset threshold, the alarm of open sensor or damage is issued.
6. a kind of equipment overtemperature test device, which is characterized in that be used for coal mine trunk conveyor, described device includes：
First judgment module receives on-test instruction for judging whether；
Module is obtained, for obtaining preset test temperature in the case where the judging result of the first judgment module, which is, is
Value；
Second judgment module, for judging whether the test temperature value is greater than the first preset threshold；
First alarm module, for sounding an alarm and stopping in the case where the judging result of the first judgment module, which is, is.
7. a kind of equipment overtemperature test device according to claim 6, which is characterized in that in the first judgment module
As a result in the case where being no, described device further includes：
Third judgment module, for judging received temperature signal whether less than the second preset threshold, wherein the temperature signal
It is that temperature substation is sent；
4th judgment module, in the case where the judging result of the third judgment module, which is, is, judging the temperature letter
Whether breath is greater than the first preset threshold, if the temperature information is greater than the first preset threshold, sounds an alarm and stops；If the temperature
Spend information be not more than the first preset threshold, return execute judge received temperature signal whether less than the second preset threshold step
Suddenly；
Second alarm module, if issuing sensor for connecing in the case where the judging result of the third judgment module is no
The alarm of open circuit or damage.
8. a kind of equipment overtemperature test device according to claim 7, which is characterized in that the temperature signal is：
What temperature substation was sent, the temperature analog signal of treated temperature sensor measurement.
9. a kind of equipment overtemperature test device according to claim 6, which is characterized in that the acquisition module is also used to：
While obtaining preset test temperature value, pause receives temperature signal.
10. a kind of equipment overtemperature test device according to claim 6, which is characterized in that described device further includes：
5th judgment module receives the instruction that test terminates or test suspends for judging whether；
6th judgment module, in the case where the judging result of the 5th judgment module, which is, is, receiving temperature signal, and
Judge received temperature signal whether less than the second preset threshold, wherein the temperature signal is that temperature substation is sent.
7th decision block, for judging the temperature information in the case where the judging result of the 6th judgment module, which is, is
Whether it is greater than the first preset threshold, if the temperature information is greater than the first preset threshold, sounds an alarm and stop；If the temperature
Information is not more than the first preset threshold, triggers the 6th judgment module；
Third alarm module, for issuing open sensor in the case where the judging result of the 6th judgment module is no
Or the alarm of damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763631.7A CN108871828A (en) | 2018-07-12 | 2018-07-12 | A kind of equipment overtemperature test method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763631.7A CN108871828A (en) | 2018-07-12 | 2018-07-12 | A kind of equipment overtemperature test method and device |
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| CN108871828A true CN108871828A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810763631.7A Pending CN108871828A (en) | 2018-07-12 | 2018-07-12 | A kind of equipment overtemperature test method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111752315A (en) * | 2019-03-29 | 2020-10-09 | 中国科学院长春光学精密机械与物理研究所 | Temperature control method, temperature controller and temperature control system for vacuum thermal test of spacecraft |
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| CN103744316A (en) * | 2014-01-17 | 2014-04-23 | 武钢集团昆明钢铁股份有限公司 | Control system protecting device and protecting method based on temperature measurement |
| CN104418040A (en) * | 2013-09-09 | 2015-03-18 | 孙慧 | Coal mine belt transportation monitoring system and method |
| CN104670843A (en) * | 2015-02-26 | 2015-06-03 | 淄博矿业集团有限责任公司许厂煤矿 | Mine belt conveyer state monitoring system |
| CN105093968A (en) * | 2014-05-07 | 2015-11-25 | 新特能源股份有限公司 | Control method and system for preventing interlocking misoperation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104418040A (en) * | 2013-09-09 | 2015-03-18 | 孙慧 | Coal mine belt transportation monitoring system and method |
| CN103744316A (en) * | 2014-01-17 | 2014-04-23 | 武钢集团昆明钢铁股份有限公司 | Control system protecting device and protecting method based on temperature measurement |
| CN105093968A (en) * | 2014-05-07 | 2015-11-25 | 新特能源股份有限公司 | Control method and system for preventing interlocking misoperation |
| CN104670843A (en) * | 2015-02-26 | 2015-06-03 | 淄博矿业集团有限责任公司许厂煤矿 | Mine belt conveyer state monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111752315A (en) * | 2019-03-29 | 2020-10-09 | 中国科学院长春光学精密机械与物理研究所 | Temperature control method, temperature controller and temperature control system for vacuum thermal test of spacecraft |
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