CN107271048A - A kind of wireless temperature measurement system and its temp measuring method - Google Patents
A kind of wireless temperature measurement system and its temp measuring method Download PDFInfo
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- CN107271048A CN107271048A CN201710533144.7A CN201710533144A CN107271048A CN 107271048 A CN107271048 A CN 107271048A CN 201710533144 A CN201710533144 A CN 201710533144A CN 107271048 A CN107271048 A CN 107271048A
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- 238000009529 body temperature measurement Methods 0.000 title claims description 31
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
Abstract
The invention discloses a kind of infrared temperature probe and its thermometric and transmission method, including housing and support, and the infrared sensor being arranged in housing；Enclosure interior is additionally provided with laser aligner, and laser aligner is cylinder with infrared sensor and be arranged in parallel；Enclosure interior is additionally provided with MCU module, and MCU module connects infrared sensor and laser aligner respectively.Laser aligner is used to launch reference beam to aim at position to be measured, so as to further improve accuracy of measurement.MCU module presets work timing to laser aligner.It is upper electricity after MCU module automatically turn on laser aligner, work more than MCU module after the time limit and close laser aligner automatically, thus avoid laser aligner work long hours it is caused damage.
Description
Technical field
The present invention relates to a kind of Electrical Safety monitoring technology field, more particularly to a kind of wireless temperature measurement system and its thermometric side
Method.
Background technology
With the rapid development of economy, power consumption is increased year by year, Electrical Safety problem is also gradually highlighted.Electrical equipment is more next
It is more, and electric elements inside is complicated.Shell or cabinet door can not be opened to it during electricity consumption or electric power distribution facility operation
Detected, after longtime running, overheating fault easily occurs in each element.The component close to malfunction is found in advance, from
And take preventive measures, when breaking down, element fault can be quickly and accurately found, maintenance and guarantee peace for electrical equipment
Full hair power supply tool is of great significance.
Conventional temperature measuring equipment is infrared radiation thermometer at present, and its operation principle is：Infrared radiation thermometer receives testee
Infrared radiating light, is focused on optical signal on sensor by front end Infrared Lens, sensor converts optical signals to electric signal,
Electric signal sends into analog-digital converter after the amplification and filtering of subsequent conditioning circuit, and microcomputer reads magnitude of voltage passes through voltage temperature
Degree transforming function transformation function converts voltages into temperature, finally shows over the display, and infrared radiation thermometer is a kind of contactless by connecing
The infra-red radiation for receiving object realizes the utensil of temperature survey.
In the prior art, the temperature-measuring results of infrared radiation thermometer need manually to investigate one by one, and workload is big, and cost of labor is high.
And the technical scheme that temperature survey is collected to transmission used at present is then mainly using cylindrical infrared probe directly by signal
Line connects the mode of collector, and it is inaccurate to there is DATA REASONING, the problems such as transmission error is big.And because existing wiring and signal are passed
Defeated condition limitation, collector can only also be distributed in the vicinity of monitoring point, still need manually to investigate one by one.For example, having obtained
No. 201620801325.4 Chinese invention patents authorized disclose a kind of infrared temperature measurement apparatus, including：Infrared shortwave detector,
Data processing module and controller.Its infrared shortwave detector is electrically connected with the data processing module, i.e., connected by signal wire
Connect, what it is due to signal wire transmission here is the very weak data signal of intensity, to realize the output of the signal, data processing mould
Block is needed to set external modulate circuit, and the temperature measurement signal of infrared shortwave detector maturation could be converted to the electricity that can be transmitted
Press signal.
And the transmission poor anti jamming capability of temperature measurement signal, the adaptability to complex environment is strong, thus collect it is final
Data error is larger.And its external modulate circuit, flow complexity, cost height.
In addition, the infrared temperature probe that current monitoring collection device is used, majority lacks laser aligner or needs are another
Outer to install, the laser aligner of installation also needs to pull down again after infrared temperature probe alignment, with prevent laser aligner because
Work long hours and damage.But the maintenance each time of infrared temperature probe will be repeated to install, pulled down, it is inconvenient for use.
The content of the invention
It is an object of the present invention to provide one kind is wirelessly transferred, the wireless temperature measurement system and its temp measuring method of integrative display.
Specific technical scheme is as follows：
The embodiment of the present invention one discloses a kind of thermometric accurately, the wireless temperature measurement system of temperature acquisition and transmission integration.
A kind of wireless temperature measurement system, including some infrared temperature probes and some collectors；Characterized in that, also including one
Gateway, gateway connects each collector by wireless signal, and collector connects one or more infrared temperature probes by cable,
GPRS module built in gateway and/or ethernet module；GPRS module connects database；Ethernet module connects Ethernet.It is infrared
Temperature probe output digit signals, collector is sent to number after collecting data signal by being wirelessly transmitted to gateway, then by gateway
According to storehouse or/and Ethernet, control platform access network based on ethernet, so as to realize the temperature number of all infrared temperature probe measurements in system
According to integrative display, meanwhile, integrated control and feed back infrared temperature probe state.
Further, gateway includes a gateway MCU module, gateway MCU module connection GPRS module or/and Ethernet mould
Block, and gateway wireless node module and gateway communication module；Gateway wireless node module connects collector by wireless signal.
Part of data acquisition in system is connected to by background data base or/and Ethernet by gateway, so as to realize the concentration of data
Collect.
Further, collector includes a collection MCU module, a collection radio node module and some collection communication moulds
Block, collection communication module connects infrared temperature probe by cable.The cable for connecting infrared temperature probe and collector is used
Two pairs of double shielded twisted pair cables (i.e. four core double screen pair cables).Collection radio node module passes through with gateway wireless node module
Wireless signal is connected.
Further, infrared temperature probe includes thermometric MCU module, laser aligner and infrared sensor, thermometric MCU moulds
Block connects infrared sensor and laser aligner respectively.Laser aligner is used to launch reference beam to aim at position to be measured, from
And further improve accuracy of measurement.
Further, thermometric MCU module connects laser aligner by transistor switching circuit；Thermometric MCU module passes through
I/O interface connects the SMBus interfaces of infrared sensor.Thermometric MCU module presets work timing to laser aligner.Surveyed after upper electricity
Warm MCU module automatically turns on laser aligner, works more than thermometric MCU module after the time limit and closes laser aligner automatically, so that
Avoid laser aligner work long hours it is caused damage.Switch triode has long lifespan, safe and reliable, no machinery mill
Damage, switching speed is fast, small volume the features such as.Switch triode can use the electric current of very little, control the break-make of high current.It is easy to
MCU module fast and safely controls the open and close of laser aligner.SMBus agreements and its interface are used to realize that low rate is led to
News, signal stabilization is relatively preferable, and circuit structure is simple, but transmission range is short, is not suitable for long-distance transmissions.
Further, thermometric MCU module connection thermometric communication module, thermometric communication module connection cables, and pass through cable
It is connected to collector.Thermometric MCU module connects thermometric communication module by UART interface；The thermometric communication module is RS485
Communication module, the collection communication module of collector is connected to by cable.RS485 communications protocol communication distances are farther, anti-interference
Ability is stronger.It is preferred that, preceding gateway communication module and collection communication module also use RS485 communication modules.
Further, infrared temperature probe is provided with a support, and navigates to temperature measurement location by support；Support is with extremely
A few gimbal suspension.The upper and lower ends of support are each provided with being provided with least one on a spherical universal joint, support tight
Gu nail.It is simple in construction using the infrared temperature probe small volume of this structure, it is easily installed in the less electrical cabinet body in space,
And 360 degree of the angle of probe is adjustable, thermometric is more accurate.
The embodiment of the present invention two discloses a kind of thermometric accurately, temperature acquisition and transmission integration, and realizes the collection of data
The wireless temperature measurement system temp measuring method of middle processing.
A kind of temp measuring method of wireless temperature measurement system, comprises the following steps：
First, infrared temperature probe is installed to temperature measurement location, adjusts backing positions, survey is accurately positioned using laser aligner
Warm spot；
2nd, infrared temperature probe measurement temperature and ASCII data signals are converted to send collector to；
3rd, collector is sent to gateway by gathering radio node module by the ASCII data signals received；
4th, the ASCII data signals received are sent to database or/and by Ethernet mould by gateway by GPRS module
Block is sent to Ethernet, is eventually displayed in database or/and control platform.
Further, in step one, electricity automatically turns on laser aligner in thermometric MCU module, and to laser aligner
Default work timing, laser aligner was worked more than after the time limit, and thermometric MCU module closes laser aligner automatically；According to laser
The instruction of aligner, the thermometric region of infrared temperature probe is finely tuned by the gimbal suspension on support, temperature measuring point is accurately positioned.
Further, step 2 is further comprising the steps of：
(1) infrared sensor measurement object under test temperature, generates SMBus digital temperature data, and update to temperature number
According to register；
(2) thermometric MCU module reads the temperature data register of infrared sensor, and verifies temperature by CRC check algorithm
Whether degrees of data is correct, if verifying successfully, carries out next step；If verification is unsuccessful, return to step one, while will detection mistake
False information is sent to collector, and then is sent by gateway to control platform.
(3) thermometric MCU module is converted to the data signal of ASCII fromat by successful temperature data is verified, and passes through line
Cable sends detector to.
The beneficial effects of the invention are as follows：
1. the laser aligner of automatic switch built in infrared temperature probe, improves accuracy of measurement, and energy saving；
2. the transmission method signal stabilization that the present invention is used, strong antijamming capability, circuit structure is simple；
3. being included the data set that multiple collectors are collected in control platform or/and database by gateway, save
Cost of labor, realizes centralized Control, meanwhile, corresponding data is analyzed by database, Electrical Safety hidden danger is more beneficial for
Strick precaution.
Brief description of the drawings
Fig. 1：The wireless temperature measurement system schematic diagram of the embodiment of the present invention one；
Fig. 2：The infrared temperature probe systematic schematic diagram of the embodiment of the present invention one；
Fig. 3：The infrared temperature probe structure chart of the embodiment of the present invention one；
Fig. 4：The collector systems schematic diagram of the embodiment of the present invention one；
Fig. 5：The gateway system schematic diagram of the embodiment of the present invention one；
Fig. 6：The flow chart of the embodiment of the present invention two；
Wherein：1- infrared temperature probes, 11- housings, 12- supports, 13- universal joints, 14- location nuts, 15- fastening nail,
16- laser aligners, 17- infrared sensors, 18- thermometrics MCU module, 19- thermometric communication modules；
2- collectors, 21- collections MCU module, 22- collection radio nodes module, 23- collection communication modules；
3- gateways, 31- gateways MCU module, 32-GPRS modules, 33- ethernet modules, 34- gateway wireless nodes module,
35- gateway communication modules.
4- databases, 5- Ethernets, 6- control platforms, 7- cables.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing of the present invention,
Technical scheme to the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is of the invention one
Divide embodiment, rather than whole embodiments.Based on described embodiments of the invention, those of ordinary skill in the art are in nothing
The every other embodiment obtained on the premise of creative work is needed, the scope of protection of the invention is belonged to.
The embodiment of the present invention one discloses a kind of thermometric accurately, the wireless temperature measurement system of temperature acquisition and transmission integration.
As shown in figure 1, a kind of wireless temperature measurement system, including multiple infrared temperature probes 1 and multiple collectors 2；Every four
One collector 2 of correspondence of infrared temperature probe 1；Also include a gateway 3, gateway 3 connects each collector 2 by wireless signal,
Collector 2 connects infrared temperature probe 1, GPRS module 32 built in gateway 3 and ethernet module 33 by cable 7；GPRS moulds
Block 32 connects database 4；Ethernet module 33 connects Ethernet 5.
As shown in figure 5, gateway 3 includes a gateway MCU module 31, the connection GPRS module 32 of gateway MCU module 31 and ether
Net module 33, and gateway wireless node module 34 and gateway communication module 35；Gateway wireless node module 34 passes through wireless communication
Number connection collector 2.
As shown in figure 4, collector 2 includes a collection MCU module 21, a collection radio node module 22 and 4 collections are logical
Believe module 23, collection communication module 23 connects infrared temperature probe 1 by cable 7.Cable 7 is using two pairs of double shielded twisted pair cables
(i.e. four core double screen pair cables).Collection radio node module 22 is connected with gateway wireless node module 34 by wireless signal.
As shown in right figure 2,3, infrared temperature probe 1 includes thermometric MCU module 18, laser aligner 16 and infrared sensor
17, thermometric MCU module 18 connects infrared sensor 17 and laser aligner 16 respectively.Laser aligner 16 is used to launch reference light
Beam aims at position to be measured, so as to further improve accuracy of measurement.
The thermometric MCU module 18 is preferably the PIC16LF1825 chips of 14 pins, is encapsulated using TSSOP, and onboard clock
Generator, UART communication interfaces, and multiple I/O interfaces.
Thermometric MCU module 18 connects laser aligner 16 by transistor switching circuit；Thermometric MCU module 18 is connect by IO
The SMBus interfaces of mouth connection infrared sensor 17.Thermometric MCU module 18 presets work timing to laser aligner 16.After upper electricity
Thermometric MCU module 18 automatically turns on laser aligner 16, works more than thermometric MCU module 18 after the time limit and closes laser alignment automatically
Device 16, thus avoid laser aligner 16 work long hours it is caused damage.Switch triode have long lifespan, it is safe and reliable,
Not the features such as not having fast mechanical wear, switching speed, small volume.Switch triode can use the electric current of very little, control high current
Break-make.It is easy to thermometric MCU module 18 fast and safely to control the open and close of laser aligner 16.SMBus agreements and its connect
Mouth is used to realize that low rate is communicated, and signal stabilization is relatively preferable, and circuit structure is simple, but transmission range is short, does not apply to
In long-distance transmissions.
The connection thermometric of thermometric MCU module 18 communication module 19, the connection cables 7 of thermometric communication module 19, and connected by cable 7
It is connected to collector 2.Thermometric MCU module 18 connects thermometric communication module 19 by UART interface.
Preceding gateway communication module 35, collection communication module 23 and thermometric communication module 19 communicate mould using RS485
Block, RS485 communications protocol communication distances are farther, and antijamming capability is stronger.Thermometric communication module 19 is connected to collection by cable 7
The collection communication module 23 of device 2.
In order to which the thermometric of infrared temperature probe 1 is accurate, infrared temperature probe 1 is provided with a support 12, and support 12 connects red
The housing 11 of outer temperature probe 1, and infrared temperature probe 1 is navigated to by temperature measurement location by support 12；Support 2 is Double-layer symmetrical
Structure, the upper and lower ends of support 2 are each provided with a universal ball joint 3, and universal joint 3 is positioned between two layers of support 2
In circular port on support 2.It is provided with support 2 at least one fastening nail 5, the present embodiment, there is provided two fastening nails
5, fastening follows closely threaded on 5, the tightness of universal joint 3 is adjusted by rotating fastening nail 5, so as to adjust the angle of universal joint 3
Degree.
Universal joint 3 on support 2 connects the position location of housing 1 and infrared temperature probe by a location nut 4 respectively.
It is simple in construction using the infrared temperature probe small volume of this structure, it is easily installed in the less electrical cabinet body in space
It is interior, and 360 degree of the angle of probe is adjustable, thermometric is more accurate.
It is preferred that, the housing 11 of infrared temperature probe 1 uses aluminum or aluminum alloy material, and shield effectiveness is more preferably.Infrared measurement of temperature
LED light is additionally provided with probe, when infrared temperature probe works, LED light is lighted.
In the present embodiment, infrared temperature probe thermometric is accurate, and directly output digit signals, and collector collects data signal
Afterwards by being wirelessly transmitted to gateway, then database or/and Ethernet be sent to by gateway, control platform access network based on ethernet, so that
The integrative display of the temperature data of all infrared temperature probe measurements in system is realized, meanwhile, integrated control and the infrared survey of feedback
The state of temperature probe.
The embodiment of the present invention two discloses a kind of thermometric accurately, temperature acquisition and transmission integration, and realizes the collection of data
The wireless temperature measurement system temp measuring method of middle processing.
As shown in fig. 6, a kind of temp measuring method of wireless temperature measurement system, comprises the following steps：
First, infrared temperature probe is installed to temperature measurement location, adjusts backing positions, survey is accurately positioned using laser aligner
Warm spot；
2nd, infrared temperature probe measurement temperature and ASCII data signals are converted to send collector to；
3rd, collector is sent to gateway by gathering radio node module by the ASCII data signals received；
4th, the ASCII data signals received are sent to database or/and by Ethernet mould by gateway by GPRS module
Block is sent to Ethernet, is eventually displayed in database or/and control platform.
In step one, electricity automatically turns on laser aligner in thermometric MCU module, and when presetting work to laser aligner
Limit, laser aligner was worked more than after the time limit, and thermometric MCU module closes laser aligner automatically；According to the finger of laser aligner
Show, the thermometric region of infrared temperature probe is finely tuned by the gimbal suspension on support, temperature measuring point is accurately positioned.Laser aligner 17
Default work timing is generally 20-60 minutes.
Because the part of support 12 includes top, the mechanism of universal joint 13 of bottom two, by loosening the tight of the part of support 12
Admittedly following closely 15, loosen clamping of the support 12 to universal joint 13, pass through position of the universal joint 13 to support 12 and infrared temperature probe
It is finely adjusted with angle, so that the installation site of infrared temperature probe does not need particular determination, and is adapted to narrow and small sky
Between.
Laser aligner 6 is used to launch reference beam to aim at position to be measured, so as to further improve accuracy of measurement.Swash
Optical registration device 6 is using the good laser probe of condenser performance, and laser aligner 6 is cylinder and parallel with infrared sensor 7
It is adjacent to, and the optical axis of laser aligner 6 is set with the diameter parallel of infrared sensor 6, laser aligner 6 and infrared sensor 7
Midpoint distance is the radius sum of the two, actual range 8mm or so, in actual use, using contactless temperature-measuring, and measured object
Body is typically greater than the midpoint distance of laser aligner 6 and infrared sensor 7.
Step 2 is further comprising the steps of：
(1) infrared sensor measurement object under test temperature, generates SMBus digital temperature data, and update to temperature number
According to register；
(2) thermometric MCU module reads the temperature data register of infrared sensor, and verifies temperature by CRC check algorithm
Whether degrees of data is correct, if verifying successfully, carries out next step；If verification is unsuccessful, return to step one, while high-ranking officers' error checking
False information is sent to collector, and then is sent by gateway to control platform.
(3) thermometric MCU module is converted to the data signal of ASCII fromat by successful temperature data is verified, and passes through line
Cable sends detector to.
In step (1), infrared sensor 17 detects a region of testee, and draws the mean temperature in the region
Value, infrared sensor 17 and testee distance are nearer, and thermometric region is smaller；Infrared sensor 17 is got over testee distance
Far, thermometric region is bigger.In the present embodiment, the ratio apart from D and thermometric regional diameter S of infrared sensor 7 and testee
For：
D：S=11.2：1
The temperature value that infrared sensor 7 is measured can change with the size in thermometric region.But thermometric region is straight
When footpath S is less than object under test regional diameter, the temperature of measurement is all accurate, but, thermometric regional diameter S is more than object under test area
During the diameter of domain, measurement temperature can be deviated, therefore, install infrared temperature probe when, it should be noted that control infrared sensor 7 with
Testee apart from D.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.All essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of wireless temperature measurement system, including some infrared temperature probes and some collectors；Characterized in that, also including a net
Close, gateway connects each collector by wireless signal, collector connects infrared temperature probe, GPRS built in gateway by cable
Module and/or ethernet module；GPRS module connects database；Ethernet module connects Ethernet.
2. wireless temperature measurement system as claimed in claim 1, it is characterised in that gateway includes a gateway MCU module, gateway MCU
Module connects GPRS module or/and ethernet module, and gateway wireless node module and gateway communication module；Gateway is wirelessly saved
Point module connects collector by wireless signal.
3. wireless temperature measurement system as claimed in claim 2, it is characterised in that collector includes a collection MCU module, a collection
Radio node module and some collection communication modules, collection communication module connect infrared temperature probe by cable.
4. wireless temperature measurement system as claimed in claim 3, it is characterised in that infrared temperature probe includes thermometric MCU module, swashed
Optical registration device and infrared sensor, thermometric MCU module connect infrared sensor and laser aligner respectively.
5. wireless temperature measurement system as claimed in claim 4, it is characterised in that thermometric MCU module passes through transistor switching circuit
Connect laser aligner；Thermometric MCU module connects the SMBus interfaces of infrared sensor by I/O interface.
6. wireless temperature measurement system as claimed in claim 4, it is characterised in that thermometric MCU module connects thermometric communication module, is surveyed
Warm communication module connection cables, and collector is connected to by cable.
7. wireless temperature measurement system as claimed in any one of claims 1 to 6, it is characterised in that infrared temperature probe is provided with one
Support, and temperature measurement location is navigated to by support；Support carries at least one gimbal suspension.
8. a kind of temp measuring method of wireless temperature measurement system, it is characterised in that comprise the following steps：
First, infrared temperature probe is installed to temperature measurement location, adjusts backing positions, thermometric is accurately positioned using laser aligner
Point；
2nd, infrared temperature probe measurement temperature and ASCII data signals are converted to send collector to；
3rd, collector is sent to gateway by gathering radio node module by the ASCII data signals received；
4th, the ASCII data signals received are sent to database by GPRS module or/and sent out by ethernet module by gateway
It is sent to Ethernet.
9. the temp measuring method of wireless temperature measurement system as claimed in claim 8, it is characterised in that in step one, thermometric MCU moulds
Electricity automatically turns on laser aligner on block, and presets work timing to laser aligner, and laser aligner was worked more than after the time limit,
Thermometric MCU module closes laser aligner automatically；According to the instruction of laser aligner, finely tuned by the gimbal suspension on support red
The thermometric region of outer temperature probe, is accurately positioned temperature measuring point.
10. infrared temperature probe as claimed in claim 8, it is characterised in that step 2 is further comprising the steps of：
(1) infrared sensor measurement object under test temperature, generates SMBus digital temperature data, and renewal is posted to temperature data
Storage；
(2) thermometric MCU module reads the temperature data register of infrared sensor, and verifies temperature number by CRC check algorithm
According to whether correct, if verifying successfully, next step is carried out；If verification is unsuccessful, return to step one.
(3) thermometric MCU module is converted to the data signal of ASCII fromat by successful temperature data is verified, and is passed by cable
Give detector.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174917A (en) * | 2019-12-26 | 2020-05-19 | 国网山东省电力公司莱芜供电公司 | Online temperature measurement camera shooting alarm system of electricity distribution room |
| CN111272295A (en) * | 2020-03-02 | 2020-06-12 | 浙江杭可科技股份有限公司 | Non-contact infrared temperature measurement system and test method based on square battery |
| CN111595452A (en) * | 2020-05-18 | 2020-08-28 | 广西电网有限责任公司南宁供电局 | Temperature monitoring device for T-shaped binding post of ring main unit and debugging and installing method thereof |
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| CN111174917A (en) * | 2019-12-26 | 2020-05-19 | 国网山东省电力公司莱芜供电公司 | Online temperature measurement camera shooting alarm system of electricity distribution room |
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| CN111272295A (en) * | 2020-03-02 | 2020-06-12 | 浙江杭可科技股份有限公司 | Non-contact infrared temperature measurement system and test method based on square battery |
| CN111272295B (en) * | 2020-03-02 | 2023-09-29 | 浙江杭可科技股份有限公司 | Non-contact infrared temperature measurement system and method based on square battery |
| CN111595452A (en) * | 2020-05-18 | 2020-08-28 | 广西电网有限责任公司南宁供电局 | Temperature monitoring device for T-shaped binding post of ring main unit and debugging and installing method thereof |
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