CN103884383A - Temperature measurement and identification circuit of built-in battery, battery, detecting device and detecting method - Google Patents
Temperature measurement and identification circuit of built-in battery, battery, detecting device and detecting method Download PDFInfo
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- CN103884383A CN103884383A CN201410123309.XA CN201410123309A CN103884383A CN 103884383 A CN103884383 A CN 103884383A CN 201410123309 A CN201410123309 A CN 201410123309A CN 103884383 A CN103884383 A CN 103884383A
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- 238000009529 body temperature measurement Methods 0.000 title abstract description 5
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Abstract
The invention discloses a temperature measurement and identification circuit of a built-in battery, the battery, a detecting device and a detecting method, and belongs to the field of electronic equipment. The temperature measurement and identification circuit comprises a temperature-sensitive resistor, one end of the temperature-sensitive resistor is connected with the negative electrode of the battery, and the other end of the temperature-sensitive resistor is led out from the battery. A capacitor is further included, and the capacitor is in parallel connection with the temperature-sensitive resistor. The detecting device comprises a signal generating module, a temperature detecting module, an analog-digital conversion module and a control module. The temperature measurement and identification circuit of the built-in battery, the battery, the detecting device and the detecting method can be applied to the battery only with three pins, and the purposes of temperature measuring, identification, imitation prevention, low cost can be achieved at the same time.
Description
Technical field
The invention belongs to electronic applications, relate in particular to a kind of thermometric and identification circuit, battery, pick-up unit and detection method of internal battery.
Background technology
Current battery of mobile phone is due to many-sided reason, adopt three leading foots, anodal and negative pole takies respectively two leading foots, also have a leading foot can be used as thermometric pin, also can be used as the pin of identification battery types (for example adopting different resistance to represent different battery sizes) and/or manufacturer (it is the product of our factory that for example each manufacturer can adopt different resistance to represent); Under the framework of this three pins, want simultaneously that the battery with three pins is read temperature simultaneously and identifying information can adopt at battery built-in chip, use a pin output temperature and identifying information by the mode of unibus, obviously, built-in chip cost is higher simultaneously; That is to say that the battery that just adopts three pin frameworks, the in the situation that of built-in chip not, can read again temperature and identifying information simultaneously, possess again certain anti-imitation function, such lower cost solution, does not also have at present simultaneously.
Summary of the invention
In view of this, the invention provides a kind of thermometric and identification circuit of internal battery, to solve the battery that also do not adopt now three pin frameworks the built-in chip not in the situation that, can read again temperature and identifying information simultaneously, possess again the problem of the lower cost solution of certain anti-imitation function simultaneously.
The present invention is achieved in that a kind of thermometric and identification circuit of internal battery, comprises thermo-sensitive resistor, and one end of thermo-sensitive resistor is connected with battery cathode, and the other end of thermo-sensitive resistor is from battery lead; Also comprise electric capacity, electric capacity and thermo-sensitive resistor are in parallel.
Further, thermo-sensitive resistor is negative temperature coefficient resister.
Further, thermo-sensitive resistor is positive temperature coefficient resistor.
The present invention also provides a kind of battery, the thermometric that it comprises above-mentioned internal battery and identification circuit.
It is a kind of to containing the pick-up unit of above-mentioned battery that the present invention also provides, and this device comprises: for the signal generating module of the thermometric to battery and identification circuit transmission detection signal; For detection of the temperature detecting module of the temperature of battery; For gathering the analog-to-digital conversion module of the response message of battery to detection signal; For the control module that the output of analog-to-digital conversion module is processed; Control module is electrically connected with temperature detecting module, signal generating module and analog-to-digital conversion module respectively.
Further, also comprise that display module is electrically connected with control module for the display module of displays temperature and battery identification state.
Further, also comprise the circuit for response message being carried out to rectifying and wave-filtering, the output terminal of current rectifying and wave filtering circuit is electrically connected with analog-to-digital conversion module, and the input end of described current rectifying and wave filtering circuit is drawn from pick-up unit.
The present invention also provides above-mentioned battery is known to method for distinguishing, comprises the following steps: the filter curve of presetting and storing thermometric and the identification circuit of internal battery; Thermometric and identification circuit to battery send periodic vibration excitation; Receive thermometric and the filter response of identification circuit to periodic vibration excitation of battery; By filter response and filter curve comparison; According to above-mentioned comparative result, determine the identification to battery.
Preferably, periodic vibration excitation is square-wave signal.
Preferably, periodic vibration excitation is sine wave signal.
In the thermometric and identification circuit, battery, pick-up unit and method of internal battery provided by the invention, because the thermo-sensitive resistor in the circuit of internal battery has been incorporated to electric capacity, therefore reached and both can pass through thermo-sensitive resistor thermometric, again can with the filtering curve of RC circuit to battery carry out manufacturer, model, batch etc. the identification of information; Again because the filtering curve of RC circuit can change with the change in resistance of thermo-sensitive resistor, the battery that therefore contains this circuit has the function of certain anti-imitation simultaneously; The cost of battery increases seldom simultaneously, is easy to the cost control of producing in enormous quantities.
Brief description of the drawings
Fig. 1 is the thermometric of internal battery provided by the invention and the schematic diagram of identification circuit.
Fig. 2 is the first pick-up unit schematic diagram provided by the invention.
Fig. 3 is the second pick-up unit schematic diagram provided by the invention.
Fig. 4 is the schematic flow sheet that battery identification is detected provided by the invention.
Fig. 5 is the detected state schematic diagram of pick-up unit provided by the invention and battery.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and the embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The thermometric and the identification circuit that the invention provides a kind of internal battery, comprise thermo-sensitive resistor, and one end of thermo-sensitive resistor is connected with battery cathode, and the other end of thermo-sensitive resistor is from battery lead; Also comprise electric capacity, electric capacity and thermo-sensitive resistor are in parallel.
Because the thermo-sensitive resistor in the circuit of internal battery has been incorporated to electric capacity, therefore reached and both can pass through thermo-sensitive resistor thermometric, again can with the filtering curve of RC circuit to battery carry out manufacturer, model, batch etc. the identification of information; Again because the filtering curve of RC circuit can change with the change in resistance of thermo-sensitive resistor, the battery that therefore contains this circuit has the function of certain anti-imitation simultaneously; The cost of battery increases seldom simultaneously, is easy to the cost control of producing in enormous quantities.
Below in conjunction with embodiment, realization of the present invention is described in detail.
As shown in Figure 1, be the thermometric of internal battery and the schematic diagram of identification circuit, the thermometric of this internal battery 1 and identification circuit, comprise thermo-sensitive resistor R, and one end of thermo-sensitive resistor is connected with battery 1 negative pole, and the other end of thermo-sensitive resistor is drawn from battery 1; Also comprise capacitor C, capacitor C and thermo-sensitive resistor R are in parallel; Adopting thermo-sensitive resistor R to be connected with battery 1 negative pole just can, directly by the logical direct current of thermo-sensitive resistor R, measure electric current and just can learn the resistance of thermo-sensitive resistor R, thereby obtain the temperature data of battery 1; Then,, when to the logical cycle of this circuit when alternating current, due to the filtering characteristic difference of RC network to different frequency, through the filtering meeting difference of the each harmonic of the cycle alternating current of this RC network, thereby obtain the waveform different from inputting cycle alternating current; Along with the variation of temperature, the filtering characteristic of RC network also can change, and the waveform obtaining according to different filtering characteristics can judge the capacitance of capacitor C, when reserve in advance in advance different capacitances represent different manufacturers, model, batch etc. identifying information, at this moment just can judge different identification parameters.
Thermo-sensitive resistor R is negative temperature coefficient resister, adopts the advantage of negative temperature coefficient resister to be: highly sensitive, operating temperature range is wide, and volume is little, easy to use, is easily processed into complicated shape, can be mass-produced; Good stability, overload capacity are strong; Shortcoming is: the relation of resistance and temperature is non-linear serious, and the consistance of element is poor, and interchangeability is poor; Element is easily aging.
Thermo-sensitive resistor R is positive temperature coefficient resistor, adopts the advantage of positive temperature coefficient resistor to be: highly sensitive, operating temperature range is wide, and volume is little, easy to use, is easily processed into complicated shape, can be mass-produced; Good stability, overload capacity are strong; Shortcoming is: power is extremely unstable, and power decline degree of convergence is very big, very easily causes half a year or some months power to occur significantly to decline falling and occurs not hot phenomenon.
The present invention also provides a kind of battery, the thermometric that it comprises above-mentioned internal battery and identification circuit; Adopt thermometric and the identification circuit of above-mentioned internal battery, not only can measure the temperature of battery, can also be by battery identification and the antiforge function cheaply of measuring of the filtering characteristic to RC circuit.
As shown in Figure 2, it is a kind of to containing the pick-up unit of above-mentioned battery that the present invention also provides, and this device comprises: for the signal generating module 201 of the thermometric to battery and identification circuit transmission detection signal; For detection of the temperature detecting module 202 of the temperature of battery; For gathering the analog-to-digital conversion module 203 of the response message of battery to detection signal; For the control module 204 that the output of analog-to-digital conversion module is processed; Control module 204 is electrically connected with temperature detecting module 202, signal generating module 201 and analog-to-digital conversion module 203 respectively; Signal generating module 201 can be sent the alternating signal in cycle, in the time that its thermometric to battery and identification circuit send the alternating signal in this cycle, can be according to the thermometric of battery and identification circuit the frequency response of cycle alternating signal to this judge the parameter value of RC, thereby obtain the identifying information to battery; Temperature detecting module 202 sends direct current by the thermometric to battery and identification circuit, judges battery temperature according to the DC current size of circuit, thus the temperature detection of complete battery pair; Analog-to-digital conversion module 203 gets up through thermometric and the filtered signals collecting of identification circuit the cycle alternating signal sending from signal generating module 201 carry out analog to digital conversion, then the cycle alternating signal contrast that RC filter curve thermo-sensitive resistor resistance corresponding relevant temperature being determined and signal generating module 201 are sent, just can determine the capacitance of electric capacity, thereby obtain the identification parameter of battery, the detection of capacitance detects and wants complicated with respect to the resistance of resistance, thereby can play certain anti-copying function.
As shown in Figure 3, pick-up unit provided by the invention also comprises the display module 305 for displays temperature and battery identification state, and display module 305 is electrically connected with control module 304; Control module 304 is electrically connected with temperature detecting module 302, signal generating module 301 and analog-to-digital conversion module 303 respectively; Demonstration can be only the demonstration to recognition result, as represented recognition result with the light on and off of LED lamp; Also can be simultaneously Identification display process and recognition result, the signal for example with display screen, signal generating module 301 being sent and signal after filtering show simultaneously, and demonstration result is also shown, and such detection information is more comprehensive.
As shown in 5, also comprise the circuit for response message being carried out to rectifying and wave-filtering, the output terminal of current rectifying and wave filtering circuit is electrically connected with analog-to-digital conversion module, and the input end of described current rectifying and wave filtering circuit is drawn from pick-up unit; The cycle alternating signal that current rectifying and wave filtering circuit can send according to signal generating module decides, make the detection data that collect can give prominence to filtered changing value, thereby conveniently contrast according to pre-stored filter curve, and by some unessential harmonic filtrations; In Fig. 5, employing be half-wave rectification, only half-wave is gathered by commutation diode D1; Coupling capacitance C2 will receive signal coupling to commutation diode D1, and filter capacitor C3 carries out filtering to received signal; Signal generating module is coupled to periodic signal by coupling capacitance C1 thermometric and the identification circuit of battery; Pull-up resistor R1 provides a reference voltage in temperature measurement circuit; Certainly can adopt full-wave rectification according to actual conditions, all-wave is gathered, these will be determined as the case may be.
As shown in Figure 4, the present invention also provides above-mentioned battery is known to method for distinguishing, and this step starts from step 401.
Step 402, the filter curve of presetting and storing thermometric and the identification circuit of internal battery; In this step, the filter curve of first storing thermometric and the identification circuit of internal battery in checkout equipment, this filter curve is a suite line, at different temperature, due to resistance difference, just there is different curves, so the resistance that will first detect thermo-sensitive resistor is used as correlation curve to determine with which curve, so just can different temperature relatively in draw correct capacitance, so just can make identification accurately.
Step 403, sends periodic vibration excitation to thermometric and the identification circuit of battery.
Step 404, receives the thermometric of battery and the filter response that identification circuit encourages periodic vibration.
Step 405, by filter response and filter curve comparison.
Step 406, according to above-mentioned comparative result, determines the identification to battery.
Finally end at step 407.
Periodic vibration excitation is square-wave signal, with the square wave before filtering and filtered square wave at one time coordinate contrast and will obtain very soon filter value.
Periodic vibration excitation is sine wave signal, same, with the sine wave before filtering and filtered sine wave at one time coordinate contrast and will obtain very soon filter value.
In a word, the technical program utilizes the filtering characteristic of energy-storage travelling wave tube as recognition strategy in three pin batteries, and than only will more preventing copying with the identifying schemes of resistance, and cost be low.
The foregoing is only preferred embodiments of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the thermometric of internal battery and an identification circuit, comprise thermo-sensitive resistor, and one end of described thermo-sensitive resistor is connected with battery cathode, and the other end of described thermo-sensitive resistor is from described battery lead; It is characterized in that: the thermometric of described internal battery and identification circuit also comprise electric capacity, described electric capacity and described thermo-sensitive resistor are in parallel.
2. the thermometric of internal battery as claimed in claim 1 and identification circuit, is characterized in that: described thermo-sensitive resistor is negative temperature coefficient resister.
3. the thermometric of internal battery as claimed in claim 1 and identification circuit, is characterized in that: described thermo-sensitive resistor is positive temperature coefficient resistor.
4. a battery, is characterized in that: the thermometric and the identification circuit that comprise claims 1 to 3 any one internal battery.
5. the pick-up unit to battery described in claim 4, is characterized in that, comprising:
For the signal generating module of the thermometric to described battery and identification circuit transmission detection signal;
For detection of the temperature detecting module of the temperature of described battery;
For gathering the analog-to-digital conversion module of the response message of described battery to described detection signal;
For the control module that the output of described analog-to-digital conversion module is processed;
Described control module is electrically connected with described temperature detecting module, described signal generating module and described analog-to-digital conversion module respectively.
6. pick-up unit as claimed in claim 5, is characterized in that: also comprise the display module for displays temperature and battery identification state, described display module is electrically connected with described control module.
7. the pick-up unit as described in claim 5 or 6, it is characterized in that: also comprise the circuit for described response message being carried out to rectifying and wave-filtering, the output terminal of described current rectifying and wave filtering circuit is electrically connected with described analog-to-digital conversion module, and the input end of described current rectifying and wave filtering circuit is drawn from described pick-up unit.
8. battery described in claim 4 is known to a method for distinguishing, it is characterized in that, comprise the following steps:
Preset and store the filter curve of thermometric and the identification circuit of described internal battery;
Thermometric and identification circuit to described battery send periodic vibration excitation;
Receive thermometric and the filter response of identification circuit to described periodic vibration excitation of described battery;
By described filter response and described filter curve comparison;
According to above-mentioned comparative result, determine the identification to described battery.
9. method as claimed in claim 8, is characterized in that: described periodic vibration excitation is square-wave signal.
10. method as claimed in claim 8, is characterized in that: described periodic vibration excitation is sine wave signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123309.XA CN103884383B (en) | 2014-03-28 | 2014-03-28 | The thermometric and identification circuit of a kind of internal battery, battery, detection means and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123309.XA CN103884383B (en) | 2014-03-28 | 2014-03-28 | The thermometric and identification circuit of a kind of internal battery, battery, detection means and detection method |
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| CN103884383A true CN103884383A (en) | 2014-06-25 |
| CN103884383B CN103884383B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410123309.XA Expired - Fee Related CN103884383B (en) | 2014-03-28 | 2014-03-28 | The thermometric and identification circuit of a kind of internal battery, battery, detection means and detection method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360281A (en) * | 2014-11-17 | 2015-02-18 | 惠州Tcl移动通信有限公司 | Mobile-terminal-based battery identification method and system and mobile terminal |
| CN104793147A (en) * | 2015-04-24 | 2015-07-22 | 惠州Tcl移动通信有限公司 | Battery, electronic equipment and method for detecting standard battery of electronic equipment |
| CN106840442A (en) * | 2015-12-04 | 2017-06-13 | 北京展讯高科通信技术有限公司 | A kind of battery temperature measuring system and method |
| CN111550834A (en) * | 2019-02-12 | 2020-08-18 | 陈景超 | Temperature measurement module of gas stove and control method |
| CN113049973A (en) * | 2021-06-02 | 2021-06-29 | 河南工学院 | Power battery detection device |
| CN113670452A (en) * | 2021-08-18 | 2021-11-19 | 深圳市汇顶科技股份有限公司 | Non-contact temperature measuring device, temperature measuring module therein and electronic equipment |
| CN118376867A (en) * | 2024-06-25 | 2024-07-23 | 东方电子股份有限公司 | Automatic testing device and method for power distribution terminal |
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| US5656917A (en) * | 1995-12-14 | 1997-08-12 | Motorola, Inc. | Battery identification apparatus and associated method |
| CN202033461U (en) * | 2011-01-17 | 2011-11-09 | 东莞市妙达电动工具制造有限公司 | Circuit detecting the type and temperature of battery in single-track manner |
| CN202550492U (en) * | 2012-05-11 | 2012-11-21 | 广东欧珀移动通信有限公司 | Battery recognition device |
| CN103217650A (en) * | 2013-04-09 | 2013-07-24 | 青岛海信移动通信技术股份有限公司 | Battery type detection method and mobile terminal designed by same |
| CN103283082A (en) * | 2010-12-30 | 2013-09-04 | 吉列公司 | Single wire battery pack temperature and identification method |
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2014
- 2014-03-28 CN CN201410123309.XA patent/CN103884383B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5656917A (en) * | 1995-12-14 | 1997-08-12 | Motorola, Inc. | Battery identification apparatus and associated method |
| CN103283082A (en) * | 2010-12-30 | 2013-09-04 | 吉列公司 | Single wire battery pack temperature and identification method |
| CN202033461U (en) * | 2011-01-17 | 2011-11-09 | 东莞市妙达电动工具制造有限公司 | Circuit detecting the type and temperature of battery in single-track manner |
| CN202550492U (en) * | 2012-05-11 | 2012-11-21 | 广东欧珀移动通信有限公司 | Battery recognition device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360281A (en) * | 2014-11-17 | 2015-02-18 | 惠州Tcl移动通信有限公司 | Mobile-terminal-based battery identification method and system and mobile terminal |
| CN104793147A (en) * | 2015-04-24 | 2015-07-22 | 惠州Tcl移动通信有限公司 | Battery, electronic equipment and method for detecting standard battery of electronic equipment |
| CN104793147B (en) * | 2015-04-24 | 2018-06-19 | 惠州Tcl移动通信有限公司 | Battery, electronic equipment and its method for detecting standard configuration battery |
| CN106840442A (en) * | 2015-12-04 | 2017-06-13 | 北京展讯高科通信技术有限公司 | A kind of battery temperature measuring system and method |
| CN111550834A (en) * | 2019-02-12 | 2020-08-18 | 陈景超 | Temperature measurement module of gas stove and control method |
| CN113049973A (en) * | 2021-06-02 | 2021-06-29 | 河南工学院 | Power battery detection device |
| CN113049973B (en) * | 2021-06-02 | 2021-08-13 | 河南工学院 | Power battery detection device |
| CN113670452A (en) * | 2021-08-18 | 2021-11-19 | 深圳市汇顶科技股份有限公司 | Non-contact temperature measuring device, temperature measuring module therein and electronic equipment |
| CN118376867A (en) * | 2024-06-25 | 2024-07-23 | 东方电子股份有限公司 | Automatic testing device and method for power distribution terminal |
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| CN103884383B (en) | 2017-12-08 |
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Address after: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant after: NUBIA TECHNOLOGY Co.,Ltd. Address before: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant before: SHENZHEN ZTE MOBILE TELECOM Co.,Ltd. |
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