CN106814321A - The circuit and hand-hold lamp fitting of battery electric quantity are surveyed in temperature-compensating - Google Patents
The circuit and hand-hold lamp fitting of battery electric quantity are surveyed in temperature-compensating Download PDFInfo
- Publication number
- CN106814321A CN106814321A CN201510875113.0A CN201510875113A CN106814321A CN 106814321 A CN106814321 A CN 106814321A CN 201510875113 A CN201510875113 A CN 201510875113A CN 106814321 A CN106814321 A CN 106814321A
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- temperature
- battery
- circuit
- electric quantity
- module
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- 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]
- G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
-
- 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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The present invention relates to the circuit that electricity is surveyed in a kind of temperature-compensating.The circuit of electricity is surveyed in a kind of temperature-compensating, it is characterised in that including：Processing module, the display module electrically connected with processing module and temperature detecting module；Temperature detecting module is used to detect the temperature value of battery, and sends temperature value to processing module；Processing module is used to detect the voltage of battery and according to temperature value, the voltage of battery and the mapping table for prestoring control display module display electricity.So as to solve the problems, such as that voltage method survey dump energy error is larger under high/low temperature different temperatures.So that user more accurately knows battery electric quantity, more reasonably arrange to use portable lamp, improve the service efficiency of user.
Description
Technical field
The present invention relates to battery electric quantity field, the circuit of battery electric quantity is surveyed in more particularly to a kind of temperature-compensating.
Background technology
Current electricity Display Technique, in general, when electricity low (being typically below 20%) also
Client can be reminded to charge, but this electricity Display Technique is not all in view of the influence of temperature, not to temperature
Influence compensate.By taking lithium battery as an example, lithium battery discharge curve and is put in high temperature, normal temperature, low temperature
The difference of electric time is all very big, and by actual measurement, during lithium battery high temperature, voltage drops to 3.5V ratios from 4.2V
It is relatively slow, arrive 3.5V voltages and declined quickly with the time；And during low temperature lithium battery from 4.2V drop to 3.5V compared with
Hurry up, to have arrived after 3.5V and decline slower with the time.As high temperature (25 ° to 30 °) 1700ma lithium battery with
The current work of 280mA, dump energy is 2% or so when voltage drops to 3.2V, can only be worked again more than ten
Minute, and in -20 ° of low temperature, same lithium battery discharges into 3.2V dump energies and is about with general condition
38%, moreover it is possible to work 70 minutes, both distinguish huge, if not differentiating between the influence of environment temperature, voltage method
Survey electric quantity of lithium battery and there will be huge error.
And if the movable lamps of current portable hand-held light fixture and use battery are in practical application, electricity
Prompting there is huge error, then cannot predict the actual electricity of current light fixture also how many, it is impossible to judge greatly
Whether enable easily causes charging not in time using how long, to need the problems such as charging, the live light fixture of influence
Use time, and then influence operating efficiency.
The content of the invention
Based on this, it is necessary to for the significant errors problem that current voltage method measurement battery electric quantity is present, there is provided
The circuit of battery electric quantity is surveyed in a kind of temperature-compensating.
The circuit of battery electric quantity is surveyed in a kind of temperature-compensating, it is characterised in that including：Processing module, with treatment
The display module and temperature detecting module of module electrical connection；
Temperature detecting module is used to detect the temperature value of battery and send temperature value to processing module；Processing module
For detect battery voltage and according to temperature value, the voltage of battery and the mapping table for prestoring control display
Module shows electricity.
Wherein in one embodiment, processing module includes processing unit and peripheral circuit, and processing unit passes through
Peripheral circuit is connected with battery.
Wherein in one embodiment, processing unit is single-chip microcomputer；Peripheral circuit include the first divider resistance and
Second divider resistance, the first divider resistance and the second divider resistance is parallel with one another and one end is grounded, the other end connects
It is connected to battery；Processing unit measures the voltage of battery by the first divider resistance and the second divider resistance.
Wherein in one embodiment, processing unit prestores multiple mapping tables.
Wherein in one embodiment, multiple mapping tables are the battery electricity obtained according to battery discharge curve
Pressure and the corresponding relation of battery electric quantity, and multiple mapping tables respectively with default multiple temperature values one
One correspondence.
Wherein in one embodiment, temperature detecting module is temperature sensor.
Wherein in one embodiment, also including Voltage stabilizing module, the input of Voltage stabilizing module is connected to battery,
The output end of Voltage stabilizing module is connected to the processing module.
Wherein in one embodiment, display module is LCDs or LED display.
Wherein in one embodiment, Voltage stabilizing module is voltage stabilizing chip.
Wherein in one embodiment, a kind of battery electric quantity of hand-hold lamp fitting is applied to above-mentioned temperature-compensating and surveys
The circuit measuring of battery electric quantity.
The circuit of electricity is surveyed in said temperature compensation, is measured the temperature of battery by temperature detecting module and is sent extremely
Measurement module, measurement module measurement battery voltage and according to the thermometer of cell voltage and battery prestore it is right
Answer relation table output control signal, control display module display electricity, so as to solve in high/low temperature not equality of temperature
The lower voltage method of degree surveys the larger problem of dump energy error.So that user more accurately knows battery electric quantity, more
Arranged rational uses portable lamp, improves the service efficiency of user.
Brief description of the drawings
Fig. 1 is the schematic block circuit diagram that battery electric quantity is surveyed in an embodiment temperature-compensating；
Fig. 2 is the mu balanced circuit figure of temperature-compensating survey battery electric quantity in Fig. 1 embodiments；
Fig. 3 surveys the circuit diagram of battery electric quantity for the temperature-compensating of an embodiment shown in Fig. 1.
Specific embodiment
As shown in Figure 1, it is the schematic block circuit diagram of embodiment temperature-compensating survey battery electric quantity.Can by Fig. 1
Know, temperature-compensating electric quantity display circuit includes：Processing module 10, temperature detecting module 12 and display module
14, and processing module 10 electrically connects with temperature detecting module 12 and display module 14.
Also known by Fig. 1, the present embodiment is by taking the electricity for measuring lantern battery as an example, it is possible to understand that ground, Ben Wen
The circuit that electricity is surveyed in degree compensation can be applied to portable hand-held light fixture and the mobile device using battery.
Wherein, temperature detecting module 12 is used to detect the temperature value of battery, and sends the temperature value extremely place of detection
Reason module 10, processing module 10 is used to detect the voltage of battery and according to temperature value, the electricity of battery for receiving
The mapping table control display electricity of display module 14 pressed and prestore.
Further, processing module 10 includes that processing unit and the peripheral circuit of processing unit (are wherein processed single
It is not shown in unit and peripheral circuit diagram).Processing unit prestores multiple mapping tables and is according to electricity
Cell voltage and the mapping table of battery electric quantity that tank discharge curve is obtained, each mapping table correspondence one
Individual different battery temperature value scope.
In the present embodiment, by taking the movable lamps commonly used as an example.The use environment of conventional movable lamps is
- 20 DEG C~40 DEG C, and use lithium battery power supply.Due to lithium battery in high temperature, normal temperature, low temperature discharge curve
The difference of corresponding discharge time is very big, can -20 DEG C~40 DEG C of temperature values be subdivided into -20 DEG C~
- 5 DEG C, -5 DEG C~15 DEG C, 15 DEG C~30 DEG C, 30 DEG C~40 DEG C totally four different temperature values, and root
The mapping table of the voltage corresponding from different temperature values and electricity is obtained according to battery discharge curve.
It is to be appreciated that the operating temperature value range intervals of battery divide multiple interval, an interval correspondence one
Mapping table is opened, so, interval division must be more, and temperature is smaller for the influence of battery allowance, accurately
Degree is higher, but increasing with interval division, and the processing function of processing unit will also increase.Actual temp
Interval division is according to the actual working environment and battery discharge curve of electrical appliance and the variation relation of temperature
It is fixed.
Preferably, processing unit 101 selects single-chip microcomputer, and the internal memory and treatment operational capability of single-chip microcomputer can meet
The peripheral circuit of actual demand and single-chip microcomputer is built flexibly simple.
When temperature detecting module 12 detects the temperature value of lithium battery, and the temperature value to processing module 10 is sent,
Processing unit 101 is connected by peripheral circuit with battery, measures the magnitude of voltage of battery, and according to temperature detection
The temperature value of the detection of module 12 determines mapping table, and the corresponding electricity of cell voltage is found in mapping table
Amount, the electricity control display electricity of display module 14 in mapping table.
In the present embodiment, the temperature value that processing unit 101 is detected according to temperature detecting module 12 determines that correspondence is closed
It is that table is specifically as follows：The corresponding temperature of temperature value of the detection of 101 temperature detection module of processing unit 12
Value scope, and determine the corresponding mapping table of the temperature values, the mapping table is the temperature value
Corresponding mapping table.
In the present embodiment, temperature detecting module 12 is temperature sensor.Display module 14 is liquid crystal display
Screen or LED display.Further, according to the need for specifically used, temperature detecting module 12 includes control
Switch and temperature sensor.Wherein, controlling switch is used for controlling temperature sensor time switch, passes temperature
The temperature of the measurement battery of sensor timing.
Preferably, the present embodiment temperature-compensating electric quantity display circuit also includes Voltage stabilizing module (Voltage stabilizing module Fig. 1
Not shown in), according to the difference and the difference of the specifically used environment of battery of mesuring battary when using, Voltage stabilizing module
It is different mu balanced circuits.The present embodiment saves lithiums as a example by measuring the electricity of 1 to 3 section lithium batteries according to 3
The voltage of the battery not more than characteristic of 12.6V, mu balanced circuit by chip HT7130, input capacitance C1,
Output capacitance C2 is constituted, and after the voltage less than 12.6V is through chip HT7130, chip is output as Vout=3V,
The physical circuit figure of mu balanced circuit is as shown in Figure 2.
Fig. 3 surveys the circuit diagram of battery electric quantity for the temperature-compensating of an embodiment shown in Fig. 1.From the figure 3, it may be seen that
In the present embodiment, temperature sensing module is specially temperature sensor DS18B20, and processing module is by single-chip microcomputer
The peripheral circuit of tiny1634 and single-chip microcomputer tiny1634 is constituted, and display module is segment liquid crystal display screen.Tool
Body ground, the peripheral circuit of single-chip microcomputer tiny1634 includes the first divider resistance R10 and the second divider resistance R11,
First divider resistance R10 and the second divider resistance R11 are parallel with one another, and one end is grounded, and the other end is connected to
Battery.Single-chip microcomputer tiny1634 can measure battery by the first divider resistance R10 and the second divider resistance R11
Voltage.
Temperature sensor DS18B20 has three interfaces, and it is respectively grounding ports GND, with single-chip microcomputer
The port DQ of tiny1634 connections, and sense the vdd terminal mouthful of battery temperature.
Temperature sensor DS18B20 detects the temperature value of battery, and single-chip microcomputer is inquired about corresponding table and drawn currently
Electricity, and current battery electric quantity is shown by display module.
In the present embodiment, segment liquid crystal display screen is made up of liquid crystal display and drive circuit, its drive circuit 30
For controlling the display comparison brightness of liquid crystal display.In the present embodiment, drive circuit 30 is from conventional LCD
Drive circuit, with COM1, COM2, COM3, COM4 and SEG1, SEG2, SEG3, SEG4 eight draws
Pin is corresponding with the I/O port of single-chip microcomputer, and COM1 pins are by divider resistance R2 and single-chip microcomputer tiny1634
I/O port connection (not shown in the I/O port figure of single-chip microcomputer), the other end is grounded by divider resistance R3,
COM2 pins are connected by divider resistance R4 with the I/O port of single-chip microcomputer tiny1634, and the other end is by partial pressure electricity
Resistance R5 ground connection, COM3 pins are connected by divider resistance R6 with the I/O port of single-chip microcomputer tiny1634, another
End is grounded by divider resistance R7, the IO that COM4 pins pass through divider resistance R8 and single-chip microcomputer tiny1634
Mouth connection, the other end is grounded by divider resistance R9.
It can be seen from driving principle according to LCD, AC voltages, LCD display can only be added on LCD pixel point
Contrast the magnitude of voltage on SEG pins subtracted by the magnitude of voltage on COM pins determine, when this voltage difference
Saturation voltage more than LCD can just open pixel, and pixel can be just closed less than LCD threshold voltages,
Complete the driving of LCD.
Each technical characteristic of embodiment described above can be combined arbitrarily, not right to make description succinct
The all possible combination of each technical characteristic in above-described embodiment is all described, as long as however, these skills
The combination of art feature does not exist contradiction, is all considered to be the scope of this specification record.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed,
But can not therefore be construed as limiting the scope of the patent.It should be pointed out that for this area
For those of ordinary skill, without departing from the inventive concept of the premise, some deformations can also be made and changed
Enter, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be defined.
Claims (10)
1. the circuit of battery electric quantity is surveyed in a kind of temperature-compensating, it is characterised in that including：Processing module, with institute
State the display module and temperature detecting module of processing module electrical connection；
The temperature detecting module is used to detect the temperature value of battery and send the temperature value to the treatment mould
Block；The processing module be used for detect battery voltage and according to the temperature value, the voltage of the battery and
The mapping table for prestoring controls the display module display electricity.
2. the circuit of battery electric quantity is surveyed in temperature-compensating according to claim 1, it is characterised in that described
Processing module includes processing unit and peripheral circuit, and the processing unit is connected by peripheral circuit with battery.
3. the circuit of battery electric quantity is surveyed in temperature-compensating according to claim 2, it is characterised in that described
Processing unit is single-chip microcomputer；The peripheral circuit includes the first divider resistance and the second divider resistance, described the
One divider resistance and the second divider resistance is parallel with one another and one end is grounded, the other end is connected to battery；The place
Reason unit measures the voltage of the battery by the first divider resistance and the second divider resistance.
4. the circuit of battery electric quantity is surveyed in temperature-compensating according to claim 3, it is characterised in that described
Processing unit prestores multiple mapping tables.
5. the circuit of battery electric quantity is surveyed in temperature-compensating according to claim 4, it is characterised in that described
Multiple mapping tables are the corresponding relation of the cell voltage and battery electric quantity obtained according to battery discharge curve,
And the multiple mapping table is corresponded with default multiple temperature values respectively.
6. the circuit of battery electric quantity is surveyed in temperature-compensating according to claim 1, it is characterised in that described
Temperature detecting module is temperature sensor.
7. the circuit of battery electric quantity is surveyed in temperature-compensating according to claim 1, it is characterised in that also wrapped
Voltage stabilizing module is included, the input of the Voltage stabilizing module is connected to battery, the output end connection of the Voltage stabilizing module
To the processing module.
8. the circuit of battery electric quantity is surveyed in temperature-compensating according to claim 1, it is characterised in that described
Display module is LCDs or LED display.
9. the circuit of battery electric quantity is surveyed in temperature-compensating according to claim 7, it is characterised in that described
Voltage stabilizing module is voltage stabilizing chip.
10. a kind of hand-hold lamp fitting, including battery, it is characterised in that also including such as claim 1 to 9 times
The circuit of battery electric quantity is surveyed in temperature-compensating described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875113.0A CN106814321A (en) | 2015-12-02 | 2015-12-02 | The circuit and hand-hold lamp fitting of battery electric quantity are surveyed in temperature-compensating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875113.0A CN106814321A (en) | 2015-12-02 | 2015-12-02 | The circuit and hand-hold lamp fitting of battery electric quantity are surveyed in temperature-compensating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106814321A true CN106814321A (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510875113.0A Pending CN106814321A (en) | 2015-12-02 | 2015-12-02 | The circuit and hand-hold lamp fitting of battery electric quantity are surveyed in temperature-compensating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323718A (en) * | 2020-04-02 | 2020-06-23 | 烟台艾睿光电科技有限公司 | Method and device for detecting residual electric quantity of battery, electronic equipment and storage medium |
| CN112747838A (en) * | 2019-10-31 | 2021-05-04 | 北京新能源汽车股份有限公司 | Battery core surface temperature monitoring method, battery management system and electric automobile |
| CN113777505A (en) * | 2021-09-13 | 2021-12-10 | 深圳创维汽车智能有限公司 | Detection circuit and method for display screen battery |
| CN114236405A (en) * | 2020-09-07 | 2022-03-25 | 海能达通信股份有限公司 | Battery electric quantity detection method and device and portable electronic equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747838A (en) * | 2019-10-31 | 2021-05-04 | 北京新能源汽车股份有限公司 | Battery core surface temperature monitoring method, battery management system and electric automobile |
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| CN111323718A (en) * | 2020-04-02 | 2020-06-23 | 烟台艾睿光电科技有限公司 | Method and device for detecting residual electric quantity of battery, electronic equipment and storage medium |
| CN111323718B (en) * | 2020-04-02 | 2022-04-05 | 烟台艾睿光电科技有限公司 | Method and device for detecting residual electric quantity of battery, electronic equipment and storage medium |
| CN114236405A (en) * | 2020-09-07 | 2022-03-25 | 海能达通信股份有限公司 | Battery electric quantity detection method and device and portable electronic equipment |
| CN114236405B (en) * | 2020-09-07 | 2024-01-12 | 海能达通信股份有限公司 | Battery electric quantity detection method and device and portable electronic equipment |
| CN113777505A (en) * | 2021-09-13 | 2021-12-10 | 深圳创维汽车智能有限公司 | Detection circuit and method for display screen battery |
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