CN106840442A - A kind of battery temperature measuring system and method - Google Patents
A kind of battery temperature measuring system and method Download PDFInfo
- Publication number
- CN106840442A CN106840442A CN201510886356.4A CN201510886356A CN106840442A CN 106840442 A CN106840442 A CN 106840442A CN 201510886356 A CN201510886356 A CN 201510886356A CN 106840442 A CN106840442 A CN 106840442A
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- temperature
- resistance
- electric signal
- temperature measuring
- thermistor
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000013507 mapping Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to electronic technology field, and in particular to a kind of battery temperature measuring method, comprise the following steps：Step 1, there is provided one is arranged at the thermistor in the supplying cell of mobile terminal to sense the temperature of supplying cell and be converted to an electric signal output；Step 2, analog-to-digital conversion is carried out to electric signal to obtain the magnitude of voltage of electric signal；Step 3, resistance value is converted to by magnitude of voltage；Step 4, searches to obtain corresponding temperature value according to resistance value from a resistance v. temperature mapping table.The present invention is converted to resistance value by by thermistor sensing value, according to current supplying cell temperature is obtained in the resistance value self-resistance-vs. temperature table, can simplify configuration flow, facilitates temperature survey.
Description
Technical field
The present invention relates to electronic technology field, and in particular to a kind of battery temperature measuring system and method.
Background technology
The detection of battery temperature for smart mobile phone it is critical that, because battery temperature can be with being
System runs and changes, and too high temperature has certain potential safety hazard, while battery use in itself
Also will be within the scope of certain temperature.In order to detect the temperature of battery, generally exist in the prior art
A built-in thermistor in lithium battery, and detection pin is externally provided, the data acquisition channel of system passes through
Certain circuit connection reads the magnitude of voltage of detection pin, by setting up the corresponding table of voltage-temperature, by electricity
Pressure value searches voltage-temperature table to obtain actual temperature value；This method has the drawback that：Due to heat
The resistance of quick resistance needs to change into magnitude of voltage according to certain circuit, for same thermistor, works as circuit
When connection method difference and the divider resistance of connection change, magnitude of voltage is different, it is necessary to repeat
Configuration voltage-temperature table, makes troubles to test.
The content of the invention
It is an object of the present invention to provide a kind of battery temperature measuring system and method, solve prior art
Need to repeat configuration voltage-temperature table, to the defect that test is made troubles；
Technical problem solved by the invention can be realized using following technical scheme：
A kind of battery temperature measuring system, wherein, for mobile terminal, including,
One thermistor, is built in the supplying cell of the mobile terminal, for sensing the power supply electricity
The temperature in pond is simultaneously converted to an electric signal output；
One analog-digital converter, is connected with the thermistor, for carrying out analog-to-digital conversion to the electric signal
To obtain the magnitude of voltage of the electric signal；
One primary processor, is connected with the analog-digital converter, for the magnitude of voltage to be converted into resistance value,
The primary processor is searched to obtain correspondence according to the resistance value from a resistance v. temperature mapping table
Temperature value.
Above-mentioned battery temperature measuring system, the thermistor and a divider resistance are series at job electricity
Between pressure and earth terminal, for sensing temperature change；The thermistor is in series with the divider resistance
Point be used for draw the electric signal.
Above-mentioned battery temperature measuring system, one second resistance of two ends parallel connection of the thermistor.
Above-mentioned battery temperature measuring system, also including a memory cell, is connected with the primary processor,
For storing the resistance v. temperature mapping table.
Above-mentioned battery temperature measuring system, the thermistor uses patch-type negative temperature coefficient thermistor power
Resistance.
Above-mentioned battery temperature measuring system, the supplying cell uses lithium battery.
Also provide, a kind of battery temperature measuring method, wherein, comprise the following steps：
Step 1, there is provided one is arranged at the thermistor in the supplying cell of mobile terminal to sense the confession
The temperature of battery is simultaneously converted to an electric signal output；
Step 2, analog-to-digital conversion is carried out to the electric signal to obtain the magnitude of voltage of the electric signal；
Step 3, resistance value is converted to by the magnitude of voltage；
Step 4, searches corresponding to obtain according to the resistance value from a resistance v. temperature mapping table
Temperature value.
Above-mentioned battery temperature measuring method a, there is provided memory cell is closed with storing the resistance v. temperature correspondence
It is table.
Above-mentioned battery temperature measuring method, before being also included in the step 4, set up the resistance-
The step of vs. temperature table.
Also include, a kind of mobile terminal, including above-mentioned battery temperature measuring system.
Beneficial effect：Due to using above technical scheme, the present invention to be changed by by thermistor sensing value
It is resistance value, according to obtaining current supplying cell temperature in the resistance value self-resistance-vs. temperature table
Degree, can simplify configuration flow, facilitate temperature survey.
Brief description of the drawings
Fig. 1 is a kind of system construction drawing of battery temperature measuring system of the invention；
Fig. 2 is a kind of a kind of electricity of the thermistor of specific embodiment of battery temperature measuring system of the invention
Road attachment structure figure；
Fig. 3 is a kind of thermistor of another specific embodiment of battery temperature measuring system of the invention
Circuit connection structure figure.
Fig. 4 is a kind of flow chart of battery temperature measuring method of the invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are without work
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that in the case where not conflicting, the embodiment in the present invention and the spy in embodiment
Levying to be mutually combined.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as of the invention
Limit.
Reference picture 1, Fig. 2, Fig. 3, a kind of battery temperature measuring system, wherein, for mobile terminal,
Including,
One thermistor 2, is built in the supplying cell of mobile terminal, the temperature for sensing supplying cell
Spend and be converted to an electric signal output；
One analog-digital converter 3, is connected with thermistor 2, for carrying out analog-to-digital conversion to obtain to electric signal
The magnitude of voltage of power taking signal；
One primary processor 1, is connected with analog-digital converter 3, main for magnitude of voltage to be converted into resistance value
Processor 1 is searched to obtain corresponding temperature value according to resistance value from a resistance v. temperature mapping table.
A kind of specific embodiment, reference picture 2, thermistor Rsense is series at a divider resistance R1
Between one operating voltage VCC and earth terminal GND, for sensing temperature change；Thermistor Rsense
The point being in series with divider resistance is used to draw electric signal as output end vo ut.The thermistor is preferably adopted
With patch-type negative temperature coefficient (Negative Temperature Coefficient, NTC) thermistor,
The resistance value of negative tempperature coefficient thermistor is raised and reduced with temperature, according to material, the difference of technique,
There are different resistance and temperature variation characteristics, resistance v. temperature corresponding relation can be by the factory of thermistor
Family provides, it is also possible to be calculated by formula.
Above-mentioned battery temperature measuring system, another specific embodiment, reference picture 3, thermistor
The one second resistance R2 of two ends parallel connection of Rsense.
The primary processor 1 of system is responsible for for magnitude of voltage being converted into resistance value, thermistor according to Circuit theory
When Rsense is connected in different circuit connection structures, corresponding computing formula is used to set up resistance value
With the relation of magnitude of voltage, it is not necessary to repeat configuration voltage-temperature table；And it is converted into resistance value in magnitude of voltage
During, can be by judging whether the resistance of second resistance R2 is zero to select two kinds of circuits to connect
Computing formula corresponding to structure is converted to resistance value with by magnitude of voltage.It is right when second resistance R2 is zero
Answer the circuit connection structure shown in Fig. 2.
Above-mentioned battery temperature measuring system, also including a memory cell 6, is connected with primary processor 1,
For storing above-mentioned resistance v. temperature mapping table.
Above-mentioned supplying cell is preferably using the lithium battery generally used on smart mobile phone.
Also provide, a kind of battery temperature measuring method, reference picture 4 is comprised the following steps：
Step 1, there is provided one is arranged at the thermistor in the supplying cell of mobile terminal to sense power supply electricity
The temperature in pond is simultaneously converted to an electric signal output；
Step 2, analog-to-digital conversion is carried out to electric signal to obtain the magnitude of voltage of electric signal；
Step 3, resistance value is converted to by magnitude of voltage；
Step 4, searches to obtain corresponding temperature according to the resistance value from a resistance v. temperature corresponding relation
Value.
Above-mentioned battery temperature measuring method, before being also included in step 4, sets up resistance v. temperature correspondence and closes
The step of being table.Resistance v. temperature corresponding relation can be provided by the manufacturer of thermistor, it is also possible to logical
Formula is crossed to be calculated.
Above-mentioned battery temperature measuring method, also provides a memory cell with memory resistor-vs. temperature
Table.
Above-mentioned battery temperature measuring method is converted to resistance value by by thermistor sensing value, and foundation should
Current supplying cell temperature is obtained in resistance value self-resistance-vs. temperature table, configuration stream can be simplified
Journey, facilitates temperature survey.
The present invention can be contained in a kind of mobile terminal, such as smart mobile phone, panel computer, to realize electricity
The accurate convenient detection of pond temperature.
The foregoing is only preferred embodiments of the present invention, not thereby limit embodiments of the present invention and
Protection domain, to those skilled in the art, should can appreciate that all utilization description of the invention
And the equivalent done by diagramatic content and the scheme obtained by obvious change, should include
Within the scope of the present invention.
Claims (10)
1. a kind of battery temperature measuring system, it is characterised in that for mobile terminal, including,
One thermistor, is built in the supplying cell of the mobile terminal, for sensing the power supply electricity
The temperature in pond is simultaneously converted to an electric signal output；
One analog-digital converter, is connected with the thermistor, for carrying out analog-to-digital conversion to the electric signal
To obtain the magnitude of voltage of the electric signal；
One primary processor, is connected with the analog-digital converter, for the magnitude of voltage to be converted into resistance value,
The primary processor is searched to obtain correspondence according to the resistance value from a resistance v. temperature mapping table
Temperature value.
2. battery temperature measuring system according to claim 1, it is characterised in that the temperature-sensitive electricity
Resistance and a divider resistance are series between an operating voltage and earth terminal, for sensing temperature change；It is described
Thermistor is used to draw the electric signal with the point that the divider resistance is in series.
3. battery temperature measuring system according to claim 2, it is characterised in that the temperature-sensitive electricity
One second resistance of two ends parallel connection of resistance.
4. battery temperature measuring system according to claim 1, it is characterised in that also deposited including
Storage unit, is connected with the primary processor, for storing the resistance v. temperature mapping table.
5. battery temperature measuring system according to claim 1, it is characterised in that the temperature-sensitive electricity
Resistance uses patch-type negative tempperature coefficient thermistor.
6. battery temperature measuring system according to claim 1, it is characterised in that the power supply electricity
Pond uses lithium battery.
7. a kind of battery temperature measuring method, it is characterised in that comprise the following steps：
Step 1, there is provided one is arranged at the thermistor in the supplying cell of mobile terminal to sense the confession
The temperature of battery is simultaneously converted to an electric signal output；
Step 2, analog-to-digital conversion is carried out to the electric signal to obtain the magnitude of voltage of the electric signal；
Step 3, resistance value is converted to by the magnitude of voltage；
Step 4, searches corresponding to obtain according to the resistance value from a resistance v. temperature mapping table
Temperature value.
8. battery temperature measuring method according to claim 7, it is characterised in that be also included in institute
Before stating step 4, the step of set up the resistance v. temperature mapping table.
9. battery temperature measuring method according to claim 7, it is characterised in that provide and store
Unit is storing the resistance v. temperature mapping table.
10. a kind of mobile terminal, it is characterised in that including the electricity described in claim 1-6 any one
Pond temperature measurement system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510886356.4A CN106840442A (en) | 2015-12-04 | 2015-12-04 | A kind of battery temperature measuring system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510886356.4A CN106840442A (en) | 2015-12-04 | 2015-12-04 | A kind of battery temperature measuring system and method |
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| Publication Number | Publication Date |
|---|---|
| CN106840442A true CN106840442A (en) | 2017-06-13 |
Family
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| CN201510886356.4A Pending CN106840442A (en) | 2015-12-04 | 2015-12-04 | A kind of battery temperature measuring system and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507589A (en) * | 2017-07-04 | 2019-03-22 | 重庆无线绿洲通信技术有限公司 | Resistance value measuring circuit, device for monitoring temperature, battery pack and battery management system |
| CN110132444A (en) * | 2018-02-08 | 2019-08-16 | 展讯通信（上海）有限公司 | Temperature sensing circuit |
| CN111307318A (en) * | 2020-03-16 | 2020-06-19 | 北京理工大学 | Battery temperature sensor and battery temperature acquisition device |
| CN111342153A (en) * | 2020-03-16 | 2020-06-26 | 北京理工大学 | A lithium-ion power battery safety warning system |
| CN111679597A (en) * | 2020-05-13 | 2020-09-18 | 深圳拓邦股份有限公司 | Electronic product power control method and device and electronic product |
| CN111836042A (en) * | 2020-08-26 | 2020-10-27 | 重庆市天实精工科技有限公司 | Camera internal temperature test system, camera internal temperature test system and camera internal temperature and analytic force test method |
| CN113639886A (en) * | 2021-09-08 | 2021-11-12 | 中国兵器装备集团自动化研究所有限公司 | Heating wire temperature off-line measuring method and system |
| WO2024152490A1 (en) * | 2023-01-17 | 2024-07-25 | 重庆利迈科技有限公司 | Temperature measurement system and method for temperature control of hot surface igniter |
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| JP2008111761A (en) * | 2006-10-31 | 2008-05-15 | Sanyo Electric Co Ltd | Temperature detector |
| CN102692281A (en) * | 2012-06-11 | 2012-09-26 | 无锡新纬电池有限公司 | Combined lithium battery temperature detection circuit |
| CN103884383A (en) * | 2014-03-28 | 2014-06-25 | 深圳市中兴移动通信有限公司 | Temperature measurement and identification circuit of built-in battery, battery, detecting device and detecting method |
| CN104714184A (en) * | 2015-03-12 | 2015-06-17 | 惠州Tcl移动通信有限公司 | Device and method for detecting battery ID and battery temperature through singular pins |
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| JP2008111761A (en) * | 2006-10-31 | 2008-05-15 | Sanyo Electric Co Ltd | Temperature detector |
| EP2306582B1 (en) * | 2009-10-01 | 2015-11-11 | Delphi Technologies, Inc. | Cell temperature sensing apparatus for a battery module |
| CN102692281A (en) * | 2012-06-11 | 2012-09-26 | 无锡新纬电池有限公司 | Combined lithium battery temperature detection circuit |
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| CN104714184A (en) * | 2015-03-12 | 2015-06-17 | 惠州Tcl移动通信有限公司 | Device and method for detecting battery ID and battery temperature through singular pins |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507589A (en) * | 2017-07-04 | 2019-03-22 | 重庆无线绿洲通信技术有限公司 | Resistance value measuring circuit, device for monitoring temperature, battery pack and battery management system |
| CN110132444A (en) * | 2018-02-08 | 2019-08-16 | 展讯通信（上海）有限公司 | Temperature sensing circuit |
| CN111307318A (en) * | 2020-03-16 | 2020-06-19 | 北京理工大学 | Battery temperature sensor and battery temperature acquisition device |
| CN111342153A (en) * | 2020-03-16 | 2020-06-26 | 北京理工大学 | A lithium-ion power battery safety warning system |
| CN111342153B (en) * | 2020-03-16 | 2021-03-26 | 北京理工大学 | Safety early warning system for lithium ion power battery |
| CN111679597A (en) * | 2020-05-13 | 2020-09-18 | 深圳拓邦股份有限公司 | Electronic product power control method and device and electronic product |
| CN111836042A (en) * | 2020-08-26 | 2020-10-27 | 重庆市天实精工科技有限公司 | Camera internal temperature test system, camera internal temperature test system and camera internal temperature and analytic force test method |
| CN113639886A (en) * | 2021-09-08 | 2021-11-12 | 中国兵器装备集团自动化研究所有限公司 | Heating wire temperature off-line measuring method and system |
| WO2024152490A1 (en) * | 2023-01-17 | 2024-07-25 | 重庆利迈科技有限公司 | Temperature measurement system and method for temperature control of hot surface igniter |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
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| RJ01 | Rejection of invention patent application after publication |