CN111272295B - Non-contact infrared temperature measurement system and method based on square battery - Google Patents
Non-contact infrared temperature measurement system and method based on square battery Download PDFInfo
- Publication number
- CN111272295B CN111272295B CN202010135123.1A CN202010135123A CN111272295B CN 111272295 B CN111272295 B CN 111272295B CN 202010135123 A CN202010135123 A CN 202010135123A CN 111272295 B CN111272295 B CN 111272295B
- Authority
- CN
- China
- Prior art keywords
- module
- temperature
- battery
- infrared temperature
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 89
- 238000004891 communication Methods 0.000 claims abstract description 63
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 230000008054 signal transmission Effects 0.000 claims abstract description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 81
- 229910052744 lithium Inorganic materials 0.000 claims description 81
- 239000000523 sample Substances 0.000 claims description 47
- 238000012360 testing method Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000012937 correction Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000012163 sequencing technique Methods 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims 2
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
Classifications
-
- 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
- G01J5/02—Constructional details
-
- 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
- G01J5/80—Calibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
- Secondary Cells (AREA)
Abstract
The non-contact infrared temperature measurement system based on the square battery comprises a rack, a battery tray assembly, an infrared temperature detection assembly, a communication module and an output module; the battery tray assembly is arranged at the bottom of the rack mounting cavity, and a battery placing area is arranged on the battery tray assembly; the infrared temperature detection assembly is arranged at the top of the rack mounting cavity and comprises a needle plate structural member, a structural member fixing module, an acquisition module and a slave module; the communication module is arranged at the rear of the frame; the output module is arranged beside the frame, and a signal transmission port of the output module is connected with the communication module in a signal way; the measuring method comprises the following steps: the infrared temperature detection assembly body collects the temperature of the battery and transmits the temperature to the communication module, then the communication module transmits signals to the output module, and the output module calibrates the temperature of the battery. The beneficial effects of the invention are as follows: the precision is high, the measurement response is fast, the maintenance is convenient, and the extrusion to the battery is reduced.
Description
Technical Field
The invention relates to a non-contact infrared temperature measurement system of a square battery, and belongs to the technical field of lithium battery formation component testing.
Background
In the testing procedure of the cylindrical lithium battery, formation testing is to charge the lithium battery with small current, so as to activate active substances in the battery and form an SEI film on the surface of a negative electrode material of the battery; the capacity-dividing test is to carry out several charge-discharge cycles on the lithium battery to test the capacity and internal resistance of the battery. For example, in the formation and capacity-division testing process of a lithium battery, the interior of the lithium battery has a heating phenomenon, so that the surface temperature of the battery is increased. The prior art adopts a contact type temperature sensor to detect the temperature of the lithium battery, and the contact type temperature measurement can only measure the temperature of the measured object and the temperature sensor after the measured object and the temperature sensor reach the heat balance, so that the required response time is long and the temperature sensor is very easy to be influenced by the environmental temperature.
Disclosure of Invention
In order to solve the above problems, the present invention provides a non-contact infrared temperature measurement system for square batteries, which has the advantages of high accuracy, fast measurement response and convenient maintenance, and also has the advantage of reducing the extrusion of the batteries because the batteries are not directly contacted.
The invention relates to a non-contact infrared temperature measurement system based on square batteries, which is characterized by comprising:
a frame having an installation cavity for installing the battery tray assembly and the infrared temperature detection assembly;
the battery tray assembly is arranged at the bottom of the rack mounting cavity, and a battery placing area is arranged on the battery tray assembly and used for accommodating square lithium batteries;
the infrared temperature detection assembly is arranged at the top of the rack mounting cavity and comprises a needle plate structural member, a structural member fixing module, an acquisition module and a slave module, wherein the slave module is arranged in the needle plate structural member, and the bottom of the needle plate structural member is arranged at the upper part of the mounting cavity through the structural member fixing module; the acquisition module is arranged on the structural part fixing module and is used for acquiring the surface temperature of the square lithium battery and converting the surface temperature into a digital signal which can be identified by the slave module or executing a control command given by the slave module; the slave module is positioned in the needle plate structural member and is used for processing transmission signals between the acquisition module and the communication module; the structural member fixing module is arranged at the lower end of the needle plate structural member and is used for installing and protecting the acquisition module;
the communication module is arranged at the rear of the rack, and a first transmission port of the communication module is in signal connection with a signal transmission port of the slave module and is used for transmitting a temperature detection signal of the infrared temperature detection assembly body and debugging and de-debugging; the second transmission port is in signal connection with the output module and is used for transmitting a control command of the output module;
and the output module is arranged beside the rack, and a signal transmission port of the output module is connected with the communication module in a signal manner and is used for acquiring data of the communication module to output the battery temperature and calibrating the surface temperature of the lithium battery.
The battery tray assembly comprises a tray bottom plate, an outer frame, a tray lining and square lithium batteries, wherein the tray outer frame and the tray bottom plate are fixedly arranged to form a square container for containing the lithium batteries; the tray inside lining is laid at the base internal surface, is equipped with a plurality of screens that are used for placing square lithium cell in the interior for make square lithium cell place perpendicularly on placing the screens.
The acquisition modules are arranged below the structural member fixing module at equal intervals and comprise an infrared temperature detection probe, a detection probe protective shell and a detection printed board, wherein the infrared temperature detection probe is arranged below the structural member fixing module and is used for detecting the temperature of the surface of the battery; the detection probe protection shell is sleeved outside the infrared temperature detection probe and is used for protecting the infrared temperature detection probe; the detection printed boards are in one-to-one correspondence with the infrared temperature detection probes, are arranged above the structural member fixing module at equal intervals, are connected with the signal connecting ends of the infrared temperature detection probes in a signal mode, and are used for receiving electric signals converted by the infrared temperature detection probes, and are converted into temperature values of detected targets after being corrected according to algorithms in the instrument and target emissivity.
The slave module is connected with the acquisition module through a 4P connector and is used for converting the digital signals obtained by the acquisition module into actual temperatures to be stored and sending the actual temperatures to the communication module or transmitting control commands sent by the communication module to the acquisition module.
The communication module comprises a CAN bus module, a host module and an Ethernet module, wherein a first transmission port of the CAN bus module is in signal connection with a signal transmission port of the slave module and is used for communication between the slave module and the host module; the signal transmission end of the host module is in signal connection with the first signal transmission end of the Ethernet module and is used for transmitting the data acquired by the CAN bus module to the Ethernet module or transmitting a control command to the slave module; the second transmission port of the Ethernet module is connected with the PC of the output module in a signal manner and is used for communication between the host module and the PC of the output module.
The output module comprises a PC and a handheld infrared thermometer, wherein the PC is in signal connection with the host module through an Ethernet module and is used for processing data of the host module and displaying the data, or receiving the temperature of the square lithium battery acquired by the handheld infrared thermometer so as to calibrate the temperature of the surface of the lithium battery; the signal transmission end of the handheld infrared thermometer is connected with the PC in a signal manner and is used for collecting the temperature of the surface of the square lithium battery and transmitting the temperature to the PC to calibrate the surface of the square lithium battery.
The testing method by using the square battery-based non-contact infrared temperature measurement system is characterized by comprising the following steps of:
1) Measurement preparation: the square lithium battery is placed in a battery tray assembly, then the equipment is started to test the square lithium battery, and the temperature of the square lithium battery is acquired in the test process;
2) The measurement starts: when the testing equipment is started, the infrared temperature detection assembly body is started to work, an acquisition module of the infrared temperature detection assembly body starts to measure the self infrared radiation energy of the square lithium battery, processes the detection signal, and then converts the detection signal into a temperature value of a tested target after correction according to an algorithm and the target emissivity in the instrument; then, the slave module processes the data sent by the acquisition module;
3) Measurement signal communication: the CAN bus module is used for communication between the slave machine module and the host machine module and transmitting signal data of a plurality of slave machine modules to one host machine module; the host module acquires data on the CAN bus module and sends the data to the Ethernet module; the Ethernet module is used for communication between the host module and the PC, and transmitting data of the host module to the PC;
4) Measurement signal output: the PC acquires the data of the Ethernet module, and processes and displays the measured temperature data of different host modules one by one;
5) Measurement calibration: firstly, carrying out temperature test on a square lithium battery by using a handheld infrared thermometer to obtain a temperature value T1; then, a temperature value T2 is obtained through the steps 1-4 of the PC; secondly, calculating a radioactivity coefficient through a formula, sending the radioactivity coefficient to a host module through a PC, and then sending the radioactivity coefficient to a slave set module and then to an acquisition module, so as to finally change the original radioactivity coefficient; finally, the temperature of the square lithium battery is obtained through a PC and a handheld infrared thermometer, if the temperature difference value is within 0.5 ℃, the calibration is considered to be successful, otherwise, the calibration is restarted.
In step 2, the method for processing the data sent by the acquisition module by the slave module is as follows: and sequencing the five times of data sent by the acquisition module, taking the intermediate value as a final result by the slave module, and outputting the final result to the CAN bus module of the communication module.
The beneficial effects of the invention are as follows: the infrared temperature measurement is to determine the temperature of the object according to the infrared radiation energy of the object to be measured, and the device has the advantages of no contact with the object to be measured, high temperature resolution, high response speed, wide temperature measurement range, no limitation of the upper limit of temperature measurement, good stability and the like, and also has the advantage of reducing the extrusion to the battery because the device is not in direct contact with the battery.
Drawings
FIG. 1a is a schematic diagram of an infrared temperature measurement system;
FIG. 1b is a partial component block diagram of the present invention;
FIG. 2 is a diagram of a battery tray assembly of the infrared temperature measurement system;
FIG. 3 is a block diagram of an infrared temperature sensing assembly of the infrared temperature measurement system;
FIG. 4 is a front view of an infrared temperature sensing assembly of the infrared temperature measurement system;
FIG. 5a is a block diagram of an acquisition module of an infrared temperature sensing assembly;
FIG. 5b is a front view of an acquisition module of the infrared temperature sensing assembly;
FIG. 6 is a temperature measurement flow chart of an infrared temperature measurement system.
Detailed Description
The invention is further described below with reference to the drawings.
Referring to the drawings:
embodiment 1a non-contact infrared temperature measurement system based on a prismatic battery according to the present invention includes:
a housing 1 having a mounting cavity for mounting the battery tray assembly 2 and the infrared temperature detecting assembly 3;
the battery tray assembly 2 is arranged at the bottom of the mounting cavity of the frame 1, and is provided with a battery placement area for accommodating square lithium batteries 24;
the infrared temperature detection assembly body 3 is arranged at the top of the rack mounting cavity and comprises a needle plate structural member 31, a structural member fixing module 32, an acquisition module 33 and a slave module 34, the slave module 34 is arranged in the needle plate structural member 31, and the bottom of the needle plate structural member is arranged at the upper part of the mounting cavity through the structural member fixing module 32; the acquisition module 33 is arranged on the structural member fixing module 32 and is used for acquiring the surface temperature of the square lithium battery and converting the surface temperature into a digital signal which can be identified by the slave module or executing a control command given by the slave module; the slave module 34 is located inside the needle plate structural member 31 and is used for processing transmission signals between the acquisition module and the communication module; the structural member fixing module 32 is mounted at the lower end of the needle plate structural member 31 and is used for mounting and protecting the acquisition module 33;
the communication module 4 is arranged at the rear of the frame 1, and a first transmission port of the communication module is in signal connection with a signal transmission port of the slave module and is used for transmitting a temperature detection signal of the infrared temperature detection assembly body and debugging and de-debugging; the second transmission port is in signal connection with the output module and is used for transmitting a control command of the output module;
and the output module 5 is arranged beside the frame 1, and a signal transmission port of the output module is connected with the communication module 1 in a signal manner and is used for acquiring data of the communication module to output the battery temperature and calibrating the surface temperature of the lithium battery.
The battery tray assembly 2 comprises a tray bottom plate 21, an outer frame 22, a tray lining 23 and square lithium batteries 24, wherein the tray outer frame 22 and the tray bottom plate 21 are fixedly arranged to form a square container for containing the lithium batteries; the tray lining 23 is laid on the inner surface of the tray bottom plate 21, and is internally provided with a plurality of clamping positions for placing square lithium batteries, and the square lithium batteries 24 are vertically placed on the placing clamping positions.
The acquisition modules 33 are arranged below the structural member fixing module at equal intervals, and comprise an infrared temperature detection probe 331, a detection probe protective shell 332 and a detection printed board 333, wherein the infrared temperature detection probe 331 is arranged below the structural member fixing module 32 and is used for detecting the temperature of the surface of the battery; the detecting probe protective shell 332 is sleeved outside the infrared temperature detecting probe 331 and is used for protecting the infrared temperature detecting probe 331; the detection printed boards 333 are in one-to-one correspondence with the infrared temperature detection probes 331, are installed above the structural member fixing module 32 at equal intervals, and the signal connection ends of the detection printed boards are in signal connection with the signal connection ends of the infrared temperature detection probes, and are used for receiving the electric signals converted by the infrared temperature detection probes, and converting the electric signals into temperature values of a detected target after correction according to an algorithm in an instrument and the target emissivity.
The slave module is connected with the acquisition module through a 4P connector, and is used for converting the digital signal obtained by the acquisition module 33 into the actual temperature, storing the actual temperature and sending the actual temperature to the communication module 4 or transmitting a control command sent by the communication module to the acquisition module 33.
The communication module 4 comprises a CAN bus module 41, a host module 42 and an ethernet module 43, wherein a first transmission port of the CAN bus module 41 is in signal connection with a signal transmission port of the slave module 34, and is used for communication between the slave module 34 and the host module 42; the signal transmission end of the host module 42 is in signal connection with the first signal transmission end of the ethernet module 43, and is configured to send the data acquired by the CAN bus module 41 to the ethernet module 43 or send a control command to the slave module 34; the second transmission port of the ethernet module 43 is in signal connection with the PC 51 of the output module 5, for communication between the host module 42 and the PC 51 of the output module.
The output module 5 comprises a PC 51 and a handheld infrared thermometer 52, wherein the PC 51 is in signal connection with the host module 42 through the Ethernet module 43 and is used for processing and displaying data of the host module 42 or receiving the temperature of the square lithium battery collected by the handheld infrared thermometer 52 so as to calibrate the temperature of the surface of the lithium battery; the signal transmission end of the handheld infrared thermometer 52 is connected with the PC 51 in a signal manner, and is used for collecting the temperature of the surface of the square lithium battery and transmitting the temperature to the PC to calibrate the temperature.
Embodiment 2 a non-contact infrared temperature measurement system for a square battery according to the present invention is characterized in that,
the frame 1 is a supporting component and is used for supporting the non-contact infrared temperature measuring component.
The battery tray assembly 2 is used for accommodating square lithium batteries 24.
The infrared temperature detection assembly 3 is used for collecting the temperature of the surface of the square lithium battery and executing the control command transmitted by the communication module 4.
And the communication module 4 is used for transmitting the temperature detection signal of the infrared temperature detection assembly 3 and debugging and de-debugging. At the same time, control commands of the output module 5 are also being transferred.
The output module 5 acquires the data of the communication module 4 to output the battery temperature, and can also be used for calibrating the surface temperature of the lithium battery.
The frame 1 is a basic supporting component. The battery tray 2 is placed under the frame 1 during testing; the infrared temperature detection assembly 3 is arranged above the frame 1, and the infrared temperature detection assembly 3 is arranged right above the battery tray assembly 2; the communication module 4 is positioned at the rear lower part of the rack; the output module 5 is located beside the frame 1.
The battery tray assembly 2 consists of a tray bottom plate 21, an outer frame 22 and a tray lining 23, wherein the battery tray assembly 2 further comprises square lithium batteries 24 in the tray. The tray outer frame 22 is fixedly arranged with the tray bottom plate 21 to form a square container for holding lithium batteries; the tray lining 23 is laid on the surface of the base, and is internally provided with a plurality of clamping positions for placing the square lithium batteries 24, so that the square lithium batteries 24 can be vertically placed on the placing clamping positions.
The infrared temperature detection assembly 3 comprises a needle plate structural member 31, a structural member fixing module 32, a collecting module 32 and a slave module 34.
The needle plate structural member 31 is of a square structure, and is used for fixedly mounting the slave module 34 and the structural member fixing module 32. The slave module 34 is located at the inner side of the needle plate structural member 31, and the structural member fixing module 32 is located below the needle plate structural member 31. The pin plate structural member 31 has a plurality of square hollows with the structural member fixing module 32, and can be used for heat dissipation.
The structure fixing module 32 is used for installing the acquisition module 33 in the sheet metal part and protecting the acquisition module 33. The structural member fixing module 32 has a rectangular parallelepiped structure, and is fixed below the needle plate structural member 31 by a screw hole.
The acquisition module 33 is used for acquiring the surface temperature of the square lithium battery 24, converting the surface temperature into a digital signal which can be identified by the slave module 34, or executing a control command given by the slave module 34. The acquisition module 33 comprises an infrared temperature detection probe 331, a detection probe protective shell 332 and a detection printed board 333. The infrared temperature detection probe 331 integrates an infrared induction thermopile detector chip and a signal processing application specific integrated chip. The distribution of the infrared radiation energy and the wavelength of the lithium battery are closely related to the surface temperature, so that the infrared temperature detection probe 331 can accurately reflect the surface temperature of the lithium battery by measuring the self infrared radiation energy of the lithium battery; the measurement resolution of the infrared temperature detection probe 331 is 0.02 ℃, so that the temperature measurement error can be within 0.5 ℃; since the width of the lithium battery is smaller, the narrow viewing angle of the infrared temperature detection probe 331 is 35 degrees, so that the testing distance range of the infrared temperature detection probe 331 is appropriately selected to be 5 cm; the number of the infrared temperature detection probes 331 is 16, and the infrared temperature detection probes are installed below the structural member fixing module 32 at equal intervals. The probe protective case 332 is used for protecting the infrared temperature probe 331 and placing the infrared temperature probe 331 inside. The detection printed board 333 converts the infrared radiation energy into corresponding electric signals when the infrared radiation energy is focused on the infrared temperature detection probe 331, the detection printed board 333 processes the signals, and then converts the signals into temperature values of a detected target after correction according to an algorithm in an instrument and the target emissivity; the number of the detection printed boards 333 is 16, and the detection printed boards are equally spaced above the structural member fixing module 32. Finally, the acquisition module 33 does not need to perform blackbody calibration, and can perform calibration by setting the radioactivity coefficient; the collection module 33 performs SMBUS communication with the slave module 34, and sends the temperature measurement result to the slave module 34, and the radioactivity coefficient can be set through the slave module 34.
The slave module 34, which is also a printed board, is used for signal processing and is fixed in the needle plate structural member 31. The slave module 34 is connected with the acquisition module 33 through a 4P connector, converts the digital signal obtained by the acquisition module 33 into an actual temperature, stores the actual temperature, and sends the actual temperature to the communication module 4 or transmits a control command sent by the communication module 4 to the acquisition module 33. The slave module 34 processes the data sent by the acquisition module 33, and the processing method is as follows: the five times of data sent by the acquisition module 33 are sequenced, and the slave module 34 takes the intermediate value as the final result and outputs the intermediate value to the CAN bus module 41 of the communication module 4.
The communication module 4 is located at the rear of the rack 1 and comprises a CAN bus module 41, a host module 42 and an ethernet module 43.
The CAN bus module 41 is configured to communicate between the slave module 44 and the host module 42, and by performing debugging and de-debugging on signals transmitted on the CAN bus, a phase difference distance between the slave module 34 and the host module 42 CAN reach 40 meters at maximum, and when the communication rate is 1Mbms, it is possible to implement communication between one host module 42 and a plurality of slave modules 34.
The host module 42 takes the data on the CAN bus module 41 and sends the data to the ethernet module 43 or control commands to the slave module 34.
The ethernet module 43 is configured to communicate between the host module 42 and the PC 51 of the output module 5; the ethernet module 43 transmits the data of the host module 42 to the PC 51 of the output module 5 by debugging and de-debugging the signal transmitted on the ethernet, and can realize communication between one PC 51 and a plurality of host modules 42, i.e. one PC 51 can realize monitoring of a plurality of detection devices.
The output module 5 is located beside the frame 1 and comprises a PC 51 and a handheld infrared thermometer 52.
The PC 51 acquires the data of the ethernet module, and creates an upper computer, as the upper computer, and processes and displays the data of different host modules 42 one by one according to different IP addresses of the host modules 42 through TCP/IP protocol; the PC 51 may also issue control commands to the host module 42 to set the radioactivity coefficient and the address of the slave module 34, thereby calibrating the temperature of the square lithium battery 24 via the handheld infrared thermometer 52.
The hand-held infrared thermometer 52 calibrates the temperature of the surface of the lithium battery. The calibration method comprises the following steps: firstly, carrying out temperature test on the square lithium battery 24 by using a handheld infrared thermometer 52 to obtain a temperature value; then, a temperature value is obtained through measurement of the acquisition module 33 by the PC 51; next, a radioactivity coefficient can be obtained by calculation through a formula, and the radioactivity coefficient is sent to the slave set module 34 through the host module 42, and then is sent to the acquisition module 33, so that the original radioactivity coefficient is finally changed. Finally, the temperature of the square lithium battery 24 is obtained through the PC 52 and the handheld infrared thermometer 51 respectively, if the temperature difference value is within 0.5 ℃, the calibration is considered to be successful, otherwise, the calibration is restarted.
Example 3 this example differs from example 2 in that, as seen in fig. 1a, 1b, the non-contact infrared temperature measurement system of square battery is composed of a frame 1, a battery tray assembly 2, an infrared temperature detection assembly 3, a communication module 4 and an output module 5. A frame 1 which is a supporting component; a battery tray assembly 2 for holding square lithium batteries 24; the battery tray 2 is placed under the frame 1 during testing; the infrared temperature detection assembly 3 is arranged above the frame 1, and the infrared temperature detection assembly 3 is arranged right above the battery tray assembly 2; the communication module 4 comprises a CAN bus module 41, a host module 42 and an Ethernet module 43; the communication module 4 is electrically connected with the slave module 34 of the infrared temperature detection assembly 3 through the CAN bus module 41; the output module 5 is located beside the frame 1, and is connected with the communication module 4 through the ethernet module 43, and comprises a PC 51 and a handheld infrared thermometer 52.
As seen in fig. 2, the battery tray assembly 2 is composed of a tray bottom plate 21, an outer frame 22, a tray liner 23 and square lithium batteries 24. The tray outer frame 22 is fixedly arranged with the tray bottom plate 21 to form a square container; the tray lining 23 is laid on the surface of the base, and is internally provided with a plurality of clamping positions for placing the square lithium batteries 24, so that the square lithium batteries 24 can be vertically placed on the placing clamping positions.
As shown in fig. 3 and 4, the infrared temperature detecting assembly 3 includes a needle plate structural member 31, a structural member fixing module 32, a collecting module 32, and a slave module 34. The needle plate structural member 31 is in a hollow square structure and is used for installing a structural member fixing module 32 and a slave module 34. The structure fixing module 32 is used for installing the acquisition module 33 in the sheet metal part and protecting the acquisition module 33. The acquisition module 33 is used for acquiring the surface temperature of the square lithium battery 24, converting the surface temperature into a digital signal which can be identified by the slave module 34, or executing a control command given by the slave module 34. The slave module 34 is a printed board, is used for signal processing, is installed and fixed in the needle plate structural member 31, and is electrically connected with the acquisition module 33 through a 4P connector.
As shown in fig. 5a and 5b, the collecting module 33 includes an infrared temperature detecting probe 331, a detecting probe protecting case 332, and a detecting printed board 333. The number of the infrared temperature detection probes 331 is 16, and the infrared temperature detection probes are installed below the structural member fixing module 32 at equal intervals. The probe protective case 332 has the infrared temperature probe 331 disposed therein. The number of the detection printed boards 333 is 16, and the detection printed boards are equally spaced above the structural member fixing module 32.
Embodiment 4 a non-contact infrared temperature measurement system for a square battery according to the present invention, referring to fig. 6, the steps for detecting temperature are described as follows:
1) Measurement preparation: the square lithium battery 24 is placed in the battery tray assembly 2, and then the square lithium battery is tested by starting equipment, and temperature collection is performed on the square lithium battery 24 in the test process.
2) The measurement starts: when the test equipment is started, the infrared temperature detection assembly 3 is started to work, the acquisition module 33 of the infrared temperature detection assembly 3 starts to measure the infrared radiant energy of the square lithium battery 24, processes the detection signal, and then converts the detection signal into a temperature value of a measured target after correction according to an algorithm in the instrument and the target emissivity. Then, the slave module 34 processes the data sent by the acquisition module 33;
3) Measurement signal communication: the CAN bus module 41 is used for communication between the slave module 44 and the master module 42, and transmits signal data of the plurality of slave modules 34 to one master module 42. The host module 42 acquires data on the CAN bus module 41 and sends the data to the ethernet module 43. The ethernet module 43 is used for communication between the host module 42 and the PC 51, and transmits the data of the host module 42 to the PC 51.
4) Measurement signal output: the PC 51 acquires the data of the ethernet module 43, and processes and displays the measured temperature data of the different host modules 42 one by one.
5) Measurement calibration: firstly, carrying out temperature test on the square lithium battery 24 by using a handheld infrared thermometer 52 to obtain a temperature value; then, a temperature value is obtained through the steps 1-4 above of the PC 51; next, a radioactivity coefficient can be obtained by formula calculation, and the radioactivity coefficient is sent to the host module 42 through the PC 51, and then sent to the slave set module 34, and further sent to the acquisition module 33, so as to finally change the original radioactivity coefficient. Finally, the temperature of the square lithium battery 24 is obtained through the PC 52 and the handheld infrared thermometer 51 respectively, if the temperature difference value is within 0.5 ℃, the calibration is considered to be successful, otherwise, the calibration is restarted.
In step 2, the method for processing the data sent by the acquisition module by the slave module is as follows: the five times of data sent by the acquisition module 33 are sequenced, and the slave module 34 takes the intermediate value as the final result and outputs the intermediate value to the CAN bus module 41 of the communication module 4.
The embodiments described in the present specification are merely examples of implementation forms of the inventive concept, and the scope of protection of the present invention should not be construed as being limited to the specific forms set forth in the embodiments, but also equivalent technical means that can be conceived by those skilled in the art according to the inventive concept.
Claims (8)
1. Non-contact infrared temperature measurement system based on square battery, characterized by comprising:
a frame having an installation cavity for installing the battery tray assembly and the infrared temperature detection assembly;
the battery tray assembly is arranged at the bottom of the rack mounting cavity, and a battery placing area is arranged on the battery tray assembly and used for accommodating square lithium batteries;
the infrared temperature detection assembly is arranged at the top of the rack mounting cavity and comprises a needle plate structural member, a structural member fixing module, an acquisition module and a slave module, wherein the slave module is arranged in the needle plate structural member, and the bottom of the needle plate structural member is arranged at the upper part of the mounting cavity through the structural member fixing module; the acquisition modules are arranged on the structural member fixing modules, are distributed below the structural member fixing modules at equal intervals and comprise infrared temperature detection probes, detection probe protective shells and detection printed boards, and the infrared temperature detection probes are arranged below the structural member fixing modules and are used for detecting the temperature of the surface of the battery; the detection probe protection shell is sleeved outside the infrared temperature detection probe and is used for protecting the infrared temperature detection probe; the detection printed boards are in one-to-one correspondence with the infrared temperature detection probes, are arranged above the structural member fixing module at equal intervals, are connected with the signal connecting end of the infrared temperature detection probes in a signal manner, are used for receiving electric signals converted by the infrared temperature detection probes, are converted into temperature values of detected targets after being corrected according to an algorithm in an instrument and target emissivity, are used for collecting the surface temperature of the square lithium battery, are converted into digital signals which can be identified by the secondary machine module, or are used for executing control commands given by the secondary machine module; the slave module is positioned in the needle plate structural member and is used for processing transmission signals between the acquisition module and the communication module; the structural member fixing module is arranged at the lower end of the needle plate structural member and is used for installing and protecting the acquisition module;
the communication module is arranged at the rear of the rack, and a first transmission port of the communication module is in signal connection with a signal transmission port of the slave module and is used for transmitting a temperature detection signal of the infrared temperature detection assembly body and debugging and de-debugging; the second transmission port is in signal connection with the output module and is used for transmitting a control command of the output module;
and the output module is arranged beside the rack, and a signal transmission port of the output module is connected with the communication module in a signal manner and is used for acquiring data of the communication module to output the battery temperature and calibrating the surface temperature of the lithium battery.
2. The square cell based non-contact infrared temperature measurement system of claim 1, wherein: the battery tray assembly comprises a tray bottom plate, an outer frame, a tray lining and square lithium batteries, wherein the tray outer frame and the tray bottom plate are fixedly arranged to form a square container for containing the lithium batteries; the tray inside lining is laid at the base internal surface, is equipped with a plurality of screens that are used for placing square lithium cell in the interior for make square lithium cell place perpendicularly on placing the screens.
3. The square cell based non-contact infrared temperature measurement system of claim 1, wherein: the slave module is connected with the acquisition module through a 4P connector and is used for converting the digital signals obtained by the acquisition module into actual temperatures to be stored and sending the actual temperatures to the communication module or transmitting control commands sent by the communication module to the acquisition module.
4. A prismatic cell based non-contact infrared temperature measurement system as in claim 3, wherein: the communication module comprises a CAN bus module, a host module and an Ethernet module, wherein a first transmission port of the CAN bus module is in signal connection with a signal transmission port of the slave module and is used for communication between the slave module and the host module; the signal transmission end of the host module is in signal connection with the first signal transmission end of the Ethernet module and is used for transmitting the data acquired by the CAN bus module to the Ethernet module or transmitting a control command to the slave module; the second transmission port of the Ethernet module is connected with the PC of the output module in a signal manner and is used for communication between the host module and the PC of the output module.
5. The square cell based non-contact infrared temperature measurement system according to claim 4, wherein: the output module comprises a PC and a handheld infrared thermometer, wherein the PC is in signal connection with the host module through an Ethernet module and is used for processing data of the host module and displaying the data, or receiving the temperature of the square lithium battery acquired by the handheld infrared thermometer so as to calibrate the temperature of the surface of the lithium battery; the signal transmission end of the handheld infrared thermometer is connected with the PC in a signal manner and is used for collecting the temperature of the surface of the square lithium battery and transmitting the temperature to the PC to calibrate the surface of the square lithium battery.
6. A testing method using the square battery-based non-contact infrared temperature measurement system according to any one of claims 1 to 5, comprising the steps of:
1) Measurement preparation: the square lithium battery is placed in a battery tray assembly, then the equipment is started to test the square lithium battery, and the temperature of the square lithium battery is acquired in the test process;
2) The measurement starts: when the testing equipment is started, the infrared temperature detection assembly body is started to work, an acquisition module of the infrared temperature detection assembly body starts to measure the self infrared radiation energy of the square lithium battery, processes the detection signal, and then converts the detection signal into a temperature value of a tested target after correction according to an algorithm and the target emissivity in the instrument; then, the slave module processes the data sent by the acquisition module;
3) Measurement signal communication: the CAN bus module is used for communication between the slave machine module and the host machine module and transmitting signal data of a plurality of slave machine modules to one host machine module; the host module acquires data on the CAN bus module and sends the data to the Ethernet module; the Ethernet module is used for communication between the host module and the PC, and transmitting data of the host module to the PC;
4) Measurement signal output: the PC acquires the data of the Ethernet module, and processes and displays the measured temperature data of different host modules one by one;
5) Measurement calibration: firstly, carrying out temperature test on a square lithium battery by using a handheld infrared thermometer to obtain a temperature value T1; then, a temperature value T2 is obtained through the steps 1-4 of the PC; secondly, calculating a radioactivity coefficient through a formula, sending the radioactivity coefficient to a host module through a PC, and then sending the radioactivity coefficient to a slave set module and then to an acquisition module, so as to finally change the original radioactivity coefficient; finally, the temperature of the square lithium battery is obtained through a PC and a handheld infrared thermometer, if the temperature difference value is within 0.5 ℃, the calibration is considered to be successful, otherwise, the calibration is restarted.
7. The method of testing of claim 6, wherein: in step 2), in step 2, the method for processing the data sent by the acquisition module by the slave module is as follows: and sequencing the five times of data sent by the acquisition module, taking the intermediate value as a final result by the slave module, and outputting the final result to the CAN bus module of the communication module.
8. The method of testing of claim 6, wherein: in the step 1), the method for collecting the surface temperature of the square lithium battery by the collecting module comprises the following steps:
the infrared temperature detection probe receives infrared radiation energy of the square lithium battery and converts the infrared radiation energy into corresponding electric signals;
the detection printed board processes the electric signal, and then the electric signal is converted into a temperature value of a detected target after being corrected according to an algorithm in the instrument and the target emissivity, namely the surface temperature of the square lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010135123.1A CN111272295B (en) | 2020-03-02 | 2020-03-02 | Non-contact infrared temperature measurement system and method based on square battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010135123.1A CN111272295B (en) | 2020-03-02 | 2020-03-02 | Non-contact infrared temperature measurement system and method based on square battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111272295A CN111272295A (en) | 2020-06-12 |
| CN111272295B true CN111272295B (en) | 2023-09-29 |
Family
ID=70997595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010135123.1A Active CN111272295B (en) | 2020-03-02 | 2020-03-02 | Non-contact infrared temperature measurement system and method based on square battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111272295B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271048A (en) * | 2017-07-03 | 2017-10-20 | 杭州家和物联技术有限公司 | A kind of wireless temperature measurement system and its temp measuring method |
| CN107367697A (en) * | 2017-08-24 | 2017-11-21 | 武汉大学 | A kind of double detector lithium battery surface temperature detector and method |
| CN207114033U (en) * | 2017-08-11 | 2018-03-16 | 西安西热电站信息技术有限公司 | A kind of infrared temperature measurement apparatus being wirelessly transferred |
| CN108519162A (en) * | 2018-04-26 | 2018-09-11 | 北京航天自动控制研究所 | A kind of Non-contact Infrared Temperature Measurement system |
| CN208206307U (en) * | 2017-10-23 | 2018-12-07 | 深圳市华能智创科技有限公司 | A kind of infrared temperature measurement apparatus |
| CN209400086U (en) * | 2019-02-12 | 2019-09-17 | 西南大学 | Infrared radiation thermometer and infrared temperature measurement system |
-
2020
- 2020-03-02 CN CN202010135123.1A patent/CN111272295B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271048A (en) * | 2017-07-03 | 2017-10-20 | 杭州家和物联技术有限公司 | A kind of wireless temperature measurement system and its temp measuring method |
| CN207114033U (en) * | 2017-08-11 | 2018-03-16 | 西安西热电站信息技术有限公司 | A kind of infrared temperature measurement apparatus being wirelessly transferred |
| CN107367697A (en) * | 2017-08-24 | 2017-11-21 | 武汉大学 | A kind of double detector lithium battery surface temperature detector and method |
| CN208206307U (en) * | 2017-10-23 | 2018-12-07 | 深圳市华能智创科技有限公司 | A kind of infrared temperature measurement apparatus |
| CN108519162A (en) * | 2018-04-26 | 2018-09-11 | 北京航天自动控制研究所 | A kind of Non-contact Infrared Temperature Measurement system |
| CN209400086U (en) * | 2019-02-12 | 2019-09-17 | 西南大学 | Infrared radiation thermometer and infrared temperature measurement system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111272295A (en) | 2020-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190137325A1 (en) | Method for operating mass comparator with removable climate module | |
| CN208206307U (en) | A kind of infrared temperature measurement apparatus | |
| EP3770569B1 (en) | Method using dry block temperature calibrator to calibrate short temperature measuring apparatus | |
| CN206192402U (en) | Gaseous little water of SF6, density on -line monitoring system | |
| CN111272295B (en) | Non-contact infrared temperature measurement system and method based on square battery | |
| CN109916968B (en) | Accurate measurement method and device of capacitance type grain moisture sensor | |
| EP2645130A2 (en) | Self-heating electrometer for high pressure ion chamber for verification of temperature compensation | |
| CN110015146B (en) | Multi-point array type power battery temperature field testing system based on RFID technology | |
| US20200103449A1 (en) | Wireless passive probe | |
| CN105372288B (en) | A kind of rate of heat flow measuring instrument and measuring method | |
| CN201892573U (en) | Near-infrared radiation thermometer | |
| CN207601275U (en) | Battery temperature tests system | |
| CN111562035A (en) | Quick calibration device and calibration method for exhaust temperature sensor at high temperature | |
| CN102513171B (en) | Rotary evaporator capable of carrying out measuring | |
| CN212275110U (en) | Temperature calibration device of polymerase chain reaction analyzer | |
| CN212513375U (en) | Switch cabinet contact temperature measuring sensor detection platform based on controllable constant temperature platform | |
| CN108534906A (en) | A kind of multiple spot temperature and humidity test instrument and its application method | |
| US20050260760A1 (en) | Measuring device for monitoring sterilization conditions | |
| CN112461371A (en) | Portable thermal imager system with laser range finder | |
| CN221281062U (en) | Support and electric field environment detection system | |
| CN210719448U (en) | Portable temperature tester | |
| CN215492091U (en) | Blackbody radiation source for temperature correction of infrared thermal imaging temperature measurement system | |
| CN220649784U (en) | Irradiance wireless calibration device | |
| CN113820357B (en) | Material thermodynamic parameter measuring equipment and measuring method | |
| CN214426794U (en) | Intelligent liquid level meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |