CN110927583A - Battery power detection device and battery power test method - Google Patents
Battery power detection device and battery power test method Download PDFInfo
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- CN110927583A CN110927583A CN201911225461.8A CN201911225461A CN110927583A CN 110927583 A CN110927583 A CN 110927583A CN 201911225461 A CN201911225461 A CN 201911225461A CN 110927583 A CN110927583 A CN 110927583A
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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]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
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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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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Abstract
The invention discloses a detection device for battery power, comprising: the first interface is used for connecting a battery to be tested; the second interface is used for connecting the mainboard; the sampling resistor is connected between the first interface and the second interface; the detection component is connected with the sampling resistor in parallel and is used for detecting the voltage at two ends of the sampling resistor; an output component; the processor is respectively connected with the detection assembly and the output assembly, and is used for determining the power of the battery to be detected according to the voltage detected by the detection assembly and the resistance value of the sampling resistor and controlling the output assembly to output the power. The invention also discloses a method for testing the battery power. The invention has the advantages of high precision and fast reaction speed by acquiring the power of the battery to be tested in real time.
Description
Technical Field
The present invention relates to the field of battery testing technologies, and in particular, to a battery power detection apparatus and a battery power testing method.
Background
At present, in order to test the power consumption of a computer battery, a sampling resistor is usually installed at a mainboard end, and the voltage at two ends of the sampling resistor is tested by a universal meter to obtain the power consumption of the battery, so that the problems of delay and low precision exist.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The embodiment of the invention mainly aims to provide a device for detecting battery power, and aims to solve the technical problems of delay and low precision in the prior art that the power consumption of a battery is obtained by testing the voltages at two ends of a sampling resistor through a multimeter.
In order to solve the above problem, an embodiment of the present invention provides a device for detecting battery power, including:
the first interface is used for connecting a battery to be tested;
the second interface is used for connecting the mainboard;
the sampling resistor is connected between the first interface and the second interface;
the detection component is connected with the sampling resistor in parallel and is used for detecting the voltage at two ends of the sampling resistor;
an output component;
the processor is respectively connected with the detection assembly and the output assembly, and is used for determining the power of the battery to be detected according to the voltage detected by the detection assembly and the resistance value of the sampling resistor and controlling the output assembly to output the power.
Optionally, the output component comprises a display, and the processor controls the display to display the power.
Optionally, the output component includes a data transmission interface, and the processor controls the data transmission interface to transmit the power to an external device.
Optionally, the processor comprises one of a field programmable gate array, a system on chip, and a micro control unit.
In addition, to solve the above problem, an embodiment of the present invention further provides a method for testing battery power, including the following steps:
the processor receives the voltage value sent by the detection component;
determining the power of a battery to be tested connected with the first interface according to the voltage value and the resistance value of the sampling resistor;
and controlling an output component to output the power.
Optionally, before the step of receiving, by the processor, the voltage value sent by the detection component, the method for testing the battery power further includes:
and when a detection instruction is received, sending a detection signal to the detection assembly, so that the detection assembly detects the voltage values at two ends of the sampling resistor when receiving the detection signal, and sending the voltage values to the processor.
Optionally, the voltage value includes a first voltage value of a battery to be tested connected to the first interface and a second voltage value of a motherboard connected to the second interface, and the step of determining the power of the battery to be tested connected to the first interface according to the voltage value and the resistance value of the sampling resistor includes:
acquiring a voltage difference according to the first voltage value and the second voltage value;
acquiring a current value according to the voltage difference and the resistance value of the sampling resistor;
and acquiring the power of the battery to be tested according to the first voltage value and the current value.
Optionally, the output component includes a display, and the step of controlling the output component to output the power further includes:
and controlling the display to display working parameters, wherein the working parameters comprise the power of the battery to be tested, or the working parameters comprise at least one of a first voltage value, a second voltage value and a current value and the power of the battery to be tested.
According to the battery power detection device provided by the embodiment of the invention, the detection component is used for detecting the first voltage value of the battery to be detected connected with the first interface and the second voltage value of the mainboard connected with the second interface, the processor is used for obtaining the power of the battery to be detected according to the first voltage value, the second voltage value and the resistance value of the sampling resistor, controlling the output component to output the power of the battery to be detected, and obtaining the power of the battery to be detected in real time.
According to the method for testing the battery power, the voltage values at two ends of the sampling resistor are obtained through the detection assembly, the power of the battery to be tested is obtained according to the voltage values and the resistance value of the sampling resistor, the output assembly is controlled to output the power of the battery to be tested, the power of the battery to be tested can be obtained in real time, and the method has the advantages of being real-time, high in precision and simple and convenient to operate.
Drawings
Fig. 1 is a schematic structural diagram of a device for detecting battery power according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for testing battery power according to a first embodiment of the present invention;
FIG. 3 is a flow chart illustrating a second embodiment of a method for testing battery power according to the present invention;
fig. 4 is a flowchart illustrating a method for testing battery power according to a third embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a device for detecting battery power according to an embodiment of the present invention.
In this embodiment, the detection device, which is implemented by using battery power as the main body, is used for detecting the power of the battery in the electronic device, such as a notebook computer, in real time.
Alternatively, the battery power detection means may be integrated on a PCB (Printed Circuit Board) as the connection converter.
The battery power detection device comprises a first interface 101, a second interface 102, a sampling battery, a detection component 104, an output component 106 and a processor 105. The first interface 101 is used for connecting a battery to be tested; the second interface 102 is used for connecting a mainboard; the sampling resistor 103 is connected between the first interface 101 and the second interface 102, and is connected in series with the battery to be tested and the main board through the first interface 101 and the second interface 102 to form a closed loop.
The detection component 104 is connected in parallel with the sampling resistor 103 and is used for detecting the voltage across the sampling resistor 103. Optionally, the detection component 104 includes an ADC (Analog to Digital Converter). The ADC may be dual-channel, and may test a first voltage value of the battery under test connected to the first interface 101 and a second voltage value of the motherboard connected to the second interface 102 respectively through an analog-digital signal input by the processor 105. It will be appreciated that the ADC converter tests the voltage across the sampling resistor 103 by connecting to ground on both channels respectively.
And the output component 106 is configured to output the power of the battery to be tested acquired by the processor 105. Optionally, the output component 106 may further output the first voltage value of the battery to be tested detected by the detection component 104, the second voltage value of the motherboard, and the current value of the sampling resistor 103.
Optionally, the output component 106 includes a display. The display is used for displaying the power of the battery to be tested. Further, the display can also output the first voltage value of the battery to be tested detected by the detection component 104, the second voltage value of the main board, and the current value of the sampling resistor 103.
Optionally, the output component 106 comprises a data transmission interface. The processor 105 may output the power of the battery to be tested to an external device, such as a display, a memory, etc., through the data transmission interface. The data transmission interface may be any interface for transmitting data, and may be a USB (Universal Serial Bus) interface or an UTRA (Universal terrestrial Radio Access) interface.
The processor 105 is connected to the detection component 104 and the output component 106, respectively. Alternatively, the processor 105 may pass through I2The C bus is connected to the detection component 104, and controls the detection component 104 to detect the voltage across the sampling resistor 103 in a master-slave manner. The detection component 104 detects two sampling resistors 103After the voltage of the terminal, the processor 105 obtains the power of the battery to be tested according to the voltage and the resistance value of the sampling resistor 103, and controls the output component 106 to output the power of the battery to be tested.
Optionally, the battery power detection device is further provided with an input component, and the control command input by the user is transmitted to the processor 105 through the input component. After receiving the control command, the processor 105 sends a detection signal to the detection component 104, so that the detection component 104 detects the voltage value across the sampling resistor 103.
Alternatively, the processor 105 may be one of a field programmable gate array, a system-on-chip, and a micro-control unit.
In this embodiment, detect the first voltage value of the battery that awaits measuring with first interface connection through the determine module to and the second voltage value of the mainboard with second interface connection, the power of the battery that awaits measuring is obtained according to the resistance value of first voltage value, second voltage value and sampling resistance to the treater, and control output assembly output battery's power that awaits measuring, can obtain the power of the battery that awaits measuring in real time, have the beneficial effect that the precision is high, reaction rate is fast.
Based on the above battery power detection apparatus, a first embodiment of the present invention is provided, and referring to fig. 2, fig. 2 is a schematic flow chart of the first embodiment of the battery power testing method of the present invention, where the battery power testing method includes the following steps:
step S10, the processor receives the voltage value sent by the detection component;
in this embodiment, the method for testing battery power is applied to a device for detecting battery power. The execution subject of the present embodiment is a processor of the battery power detection device.
In the prior art, a sampling resistor is generally arranged at a mainboard end for testing the power condition of a computer battery, voltage values at two ends of the sampling resistor are detected through a universal meter and then converted to finally obtain the power consumption of the battery, the calculation is relatively complex, meanwhile, the method is not intelligent enough, and the continuous change of the power consumption of the battery can not be displayed in a direct and clear manner in real time. In the embodiment, the sampling resistor at the end of the main board is arranged on the detection device of the battery power to detect the power of the battery, so that the manufacturing cost of the main board can be reduced, and the accuracy of detecting the battery power can be improved. Optionally, a debugging interface is added at the battery end to be tested, and the debugging interface is connected with the first interface, so that plugging and unplugging of the battery end can be reduced, and further, the battery is prevented from being damaged due to frequent plugging and unplugging.
The device for detecting the battery power comprises a processor, an output assembly, a detection assembly, a sampling resistor, a first interface and a second interface. The first interface is connected to a battery to be tested, the second interface is connected to the mainboard, and a sampling resistor is connected between the first interface and the second interface. It should be noted that the battery to be tested, the motherboard and the sampling resistor are connected in series to form a closed loop to form a test circuit, and the detection component is connected in parallel with the sampling resistor and is used for detecting the voltage values at the two ends of the sampling resistor. Alternatively, the detection component may be an analog-to-digital converter, which has two channels and can respectively detect two voltage values at two ends of the sampling resistor. And after the detection resistor detects the voltage values at the two ends of the sampling resistor, the voltage values are sent to the processor.
The processor is respectively connected with the detection component and the output component. The processor can receive the voltage value sent by the detection component through the connection bus.
Optionally, before the step of receiving the voltage value sent by the detection component, the processor further includes:
and when a detection instruction is received, sending a detection signal to the detection assembly, so that the detection assembly detects the voltage values at two ends of the sampling resistor when receiving the detection signal, and sending the voltage values to the processor.
The battery power detection device can also be provided with an input component, and a detection instruction input by a user is received through the input component. Alternatively, the input component may be a test button on the battery power test device, which is pressed to cause the processor to recognize the test command. Optionally, the input component may also be a data transmission interface, and the detection instruction input by the user is received through the data transmission interface.
And after receiving the detection instruction, the processor sends a detection signal to the detection assembly. The detection signal may be a signal for triggering the detection component to detect a voltage value of the sampling resistor. Alternatively, the detection signal may be an analog-to-digital converted signal.
And after receiving the detection signal sent by the processor, the detection assembly detects the voltage values at the two ends of the sampling resistor and sends the voltage values at the two ends of the sampling resistor to the processor in real time. Further, after receiving the detection signal, the detection assembly may detect the voltage values at the two ends of the sampling resistor only at the moment of receiving the detection signal, or may detect the voltage values at the two ends of the sampling resistor within a period of time, so as to detect the power of the battery to be detected in real time.
Step S20, determining the power of the battery to be tested connected with the first interface according to the voltage value and the resistance value of the sampling resistor;
it should be noted that the resistance of the sampling resistor is known, and the current value of the test circuit can be obtained according to the voltage value at the two ends of the sampling resistor detected by the component to be tested without testing.
After receiving the voltage value sent by the detection component, the processor can obtain the current value in the test circuit, namely the current value of the battery to be tested, according to the voltage value and the resistance value of the sampling resistor. And obtaining the power of the battery to be tested according to the voltage value and the current value.
And step S30, controlling the output component to output the power.
The processor controls the output assembly to output the power of the battery to be tested, wherein the processor is a master device, and the output assembly is a slave device.
Optionally, the output component includes a display, which can be used to display the power of the battery to be tested. Further, the display may also display one or more of a voltage value and a current value in the test circuit. The display can detect the power change of the battery to be detected in real time.
Optionally, the output component includes a data transmission interface, and may be connected to the external device through the data transmission interface, so as to transmit the power of the battery to be tested to the external device, so that the user can check the power. Optionally, the processor may further output one or more of the voltage value and the current value to an external device through the data transmission interface.
In this embodiment, the voltage values at the two ends of the sampling resistor are obtained through the detection component, the power of the battery to be tested is obtained according to the voltage values and the resistance value of the sampling resistor, the output component is controlled to output the power of the battery to be tested, the power of the battery to be tested can be obtained in real time, and the detection device has the advantages of being real-time, high in precision and simple and convenient to operate.
Referring to fig. 3, fig. 3 is a schematic flow chart of a second embodiment of the method for testing battery power according to the present invention, and based on the first embodiment, after step S10, the method further includes:
step S21, obtaining a voltage difference according to the first voltage value and the second voltage value;
in this embodiment, the detection component has two channels, and the voltage values at the two ends of the sampling resistor can be respectively obtained through the two channels. The voltage value comprises a first voltage value of the battery to be tested connected with the first interface and a second voltage value of the mainboard connected with the second interface.
The processor obtains the difference between the first voltage value and the second voltage value to obtain the voltage difference between the two ends of the sampling resistor. It can be understood that, the sampling resistor is connected with the resistor to be tested through the first interface, and then, the voltage of the sampling resistor close to the first interface is a first voltage value; the voltage of the sampling resistor close to the second interface is a second voltage value.
Step S22, obtaining a current value according to the voltage difference and the resistance value of the sampling resistor;
after the processor obtains the voltage difference between the two ends of the sampling resistor, the ratio of the voltage difference to the resistance value of the sampling resistor is obtained, and the current value of the sampling resistor, namely the current value of the whole test circuit, is obtained.
And step S23, acquiring the power of the battery to be tested according to the first voltage value and the current value.
After obtaining the current value, the processor obtains a product of the first voltage value and the current value to obtain the power of the battery to be tested, and it can be understood that the power of the battery to be tested is equal to the product of the first voltage value and the current value of the battery to be tested.
In this embodiment, through obtaining the voltage difference at sampling resistor both ends, obtain the current value according to the resistance value of voltage difference and sampling resistor, obtain the power of the battery that awaits measuring according to current value and first voltage value, have test operation simple, test high efficiency and safe beneficial effect.
Referring to fig. 4, fig. 4 is a schematic flow chart of a third embodiment of the method for testing battery power of the present invention, and based on the first embodiment or the second embodiment, after step S20, the method further includes:
step S31, controlling the display to display a working parameter, where the working parameter includes a power of the battery to be tested, or the working parameter includes at least one of the first voltage value, the second voltage value, and the current value and the power of the battery to be tested.
The output component includes a display. And after the processor acquires the power of the battery to be detected, the processor controls the display to display the working parameters.
The operating parameters include circuit information in the test circuit. The working parameter comprises the power of the battery to be tested. Optionally, the operating parameter comprises at least one of a first voltage value, a second voltage value, and a circuit value. In other words, the processor can control the display to only display the power of the battery to be tested; the processor can also control the display to display the power of the battery to be tested and then display at least one of the first voltage value, the second voltage value and the circuit value.
The display is used for displaying the power of the battery to be tested, and at least one of the first voltage value, the second voltage value and the circuit value can be displayed or not displayed. Can set up according to the demand to satisfy the diversified demand of tester.
In this embodiment, the working parameters of the test circuit are displayed by controlling the display, so that the power change condition and the voltage and current change condition of the battery to be tested can be displayed in real time, and the requirement of a tester for acquiring diversified information through the test circuit is met.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a computer-readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, and includes several instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A device for detecting battery power, the device comprising:
the first interface is used for connecting a battery to be tested;
the second interface is used for connecting the mainboard;
the sampling resistor is connected between the first interface and the second interface;
the detection component is connected with the sampling resistor in parallel and is used for detecting the voltage at two ends of the sampling resistor;
an output component;
the processor is respectively connected with the detection assembly and the output assembly, and is used for determining the power of the battery to be detected according to the voltage detected by the detection assembly and the resistance value of the sampling resistor and controlling the output assembly to output the power.
2. The apparatus for detecting battery power according to claim 1, wherein said output component includes a display, and said processor controls said display to display said power.
3. The apparatus for detecting battery power according to claim 1, wherein the output component includes a data transmission interface, and the processor controls the data transmission interface to transmit the power to an external device.
4. The apparatus for detecting battery power according to claim 1, wherein the processor comprises one of a field programmable gate array, a system-on-chip, and a micro-control unit.
5. A method for testing battery power, which is applied to the apparatus for detecting battery power according to any one of claims 1 to 4, and further comprises the following steps:
the processor receives the voltage value sent by the detection component;
determining the power of a battery to be tested connected with the first interface according to the voltage value and the resistance value of the sampling resistor;
and controlling an output component to output the power.
6. The method for testing battery power of claim 5, wherein before the step of receiving the voltage value transmitted by the detection component by the processor, the method for testing battery power further comprises:
and when a detection instruction is received, sending a detection signal to the detection assembly, so that the detection assembly detects the voltage values at two ends of the sampling resistor when receiving the detection signal, and sending the voltage values to the processor.
7. The method for testing battery power according to claim 5, wherein the voltage values include a first voltage value of the battery to be tested connected to the first interface and a second voltage value of the motherboard connected to the second interface, and the step of determining the power of the battery to be tested connected to the first interface according to the voltage values and the resistance value of the sampling resistor comprises:
acquiring a voltage difference according to the first voltage value and the second voltage value;
acquiring a current value according to the voltage difference and the resistance value of the sampling resistor;
and acquiring the power of the battery to be tested according to the first voltage value and the current value.
8. The method for testing battery power of claim 5, wherein the output component includes a display, and the step of controlling the output component to output the power further comprises:
and controlling the display to display working parameters, wherein the working parameters comprise the power of the battery to be tested, or the working parameters comprise at least one of a first voltage value, a second voltage value and a current value and the power of the battery to be tested.
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| US11977116B2 (en) | 2020-09-16 | 2024-05-07 | Changxin Memory Technologies, Inc. | Current test circuit, device and method, and storage medium |
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Address after: 518000 501-2, building a, wisdom Plaza, 4068 Qiaoxiang Road, Gaofa community, Shahe street, Nanshan District, Shenzhen City, Guangdong Province Applicant after: Shenzhen baoxinchuang Technology Co.,Ltd. Address before: 518000 floor 6, workshop 7, Tongfu industrial city, No. 351, tangxing Road, Tanglang community, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Applicant before: Shenzhen Baolong Daxin Technology Co.,Ltd. |
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