CN104049218A - Battery electric quantity detection method based on Loongson 2H platform - Google Patents
Battery electric quantity detection method based on Loongson 2H platform Download PDFInfo
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- CN104049218A CN104049218A CN201410314036.7A CN201410314036A CN104049218A CN 104049218 A CN104049218 A CN 104049218A CN 201410314036 A CN201410314036 A CN 201410314036A CN 104049218 A CN104049218 A CN 104049218A
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- battery
- electric quantity
- low charge
- charge alert
- alert lamp
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses a battery electric quantity detection method based on a Loongson 2H platform. A battery electric quantity detection program, a control unit and an LED electric quantity warning lamp are involved in the method, and the control unit converts detected extant battery electric quantity into digital signals, sends the digital signals to the battery electric quantity detection program and controls on-off of the LED electric quantity warning lamp through instruction signals sent by the battery electric quantity detection program. By the adoption of the detection method, the battery electric quantity can be detected based on the field of the Loongson 2H platform.
Description
Technical field
The present invention relates to computer battery electric weight technical field, be specifically related to a kind of battery electricity detection method based on Godson 2H platform, for detection of the existing electric weight of notebook or panel computer battery, and compare with low charge alert value, control the light on and off of low charge alert lamp.
Background technology
Current most of notebook or dull and stereotyped battery electric quantity information are to be all presented in the icon in the operating system lower right corner, and user cannot learn battery electric quantity information intuitively, and it is extremely important at some special occasions, to grasp battery electric quantity information.Current battery detection method of quantity of electricity is mainly for Windows operating system, and in autonomous controlled field, especially Godson 2H platform field, does not also have correlation technique.
Godson 2h is researched and developed by cas computer, and it is integrated CPU on a chip, graphic process unit, and north bridge and South Bridge chip.Godson 2H adopts based on MIPS64 instruction set, can move a plurality of operating system.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of battery electricity detection method based on Godson 2H platform is provided.
The technical solution adopted in the present invention is:
A kind of battery electricity detection method based on Godson 2H platform, described method comprises battery electric quantity trace routine, control module and LED charge alert lamp, wherein control module is converted to digital signal by the existing electric weight of the battery of detection and sends to battery electric quantity trace routine, and the command signal sending by battery electric quantity trace routine, control the light on and off of LED charge alert lamp.
The testing process of described method is: operating system by program at set intervals poll read the information about power of battery, first read battery charging and discharging state, if battery being detected charges, read again low charge alert lamp state, if low charge alert lamp is bright, close low charge alert lamp; If battery detected, discharge, then read the existing electric weight of battery, if electric weight is less than warning value at present, turns on low charge alert lamp, otherwise close low charge alert lamp.
The step that described method realizes is as follows:
(1), first read battery charging and discharging status information, under file reading system/sys/class/power_supply/icpc-bq-battery/status battery status value;
(2) if the value that step 1 is returned is Charging, show that battery charges, then from file/dev/loongson1-gpio, read the state of low charge alert lamp, if rreturn value is 1, in/dev/loongson1-gpio, write 0, close low charge alert lamp.
(3), if step 1 rreturn value is not Charging, show that battery discharges, program reads total electric weight of battery from/sys/class/power_supply/icpc-bq-battery/energy_full, from/sys/class/power_supply/icpc-bq-battery/energy_now, read existing electric weight, existing electric weight/total electric weight obtains the existing number percent of battery electric quantity, contrast with low charge alert value, if lower than minimum battery electric quantity percentage, in/dev/loongson1-gpio, write 1, turn on low charge alert lamp, otherwise write 0, close low charge alert lamp,
(4), after program compilation passes through, program is added in start self-starting item.
Beneficial effect of the present invention is: adopt detection method provided by the present invention, the battery electric quantity that can realize based on Godson 2H platform field detects.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is battery electricity detection method process flow diagram of the present invention.
Embodiment
With reference to the accompanying drawings, by embodiment, the present invention is further described:
A kind of battery electricity detection method based on Godson 2H platform, described method comprises battery electric quantity trace routine, control module and LED charge alert lamp, wherein control module is converted to digital signal by the existing electric weight of the battery of detection and sends to battery electric quantity trace routine, and the command signal sending by battery electric quantity trace routine, control the light on and off of LED charge alert lamp.
The testing process of described method is: operating system by program at set intervals poll read the information about power of battery, first read battery charging and discharging state, if battery being detected charges, read again low charge alert lamp state, if low charge alert lamp is bright, close low charge alert lamp; If battery detected, discharge, then read the existing electric weight of battery, if electric weight is less than warning value at present, turns on low charge alert lamp, otherwise close low charge alert lamp.
The step that described method realizes is as follows:
(1), first read battery charging and discharging status information, under file reading system/sys/class/power_supply/icpc-bq-battery/status battery status value;
(2) if the value that step (1) is returned is Charging, show that battery charges, then from file/dev/loongson1-gpio, read the state of low charge alert lamp, if rreturn value is 1, in/dev/loongson1-gpio, write 0, close low charge alert lamp.
(3), if step (1) rreturn value is not Charging, show that battery discharges, program reads total electric weight of battery from/sys/class/power_supply/icpc-bq-battery/energy_full, from/sys/class/power_supply/icpc-bq-battery/energy_now, read existing electric weight, existing electric weight/total electric weight obtains the existing number percent of battery electric quantity, contrast with low charge alert value, if lower than minimum battery electric quantity percentage, in/dev/loongson1-gpio, write 1, turn on low charge alert lamp, otherwise write 0, close low charge alert lamp,
(4), after program compilation passes through, program is added in start self-starting item.
Claims (3)
1. the battery electricity detection method based on Godson 2H platform, it is characterized in that: described method comprises battery electric quantity trace routine, control module and LED charge alert lamp, wherein control module is converted to digital signal by the existing electric weight of the battery of detection and sends to battery electric quantity trace routine, and the command signal sending by battery electric quantity trace routine, control the light on and off of LED charge alert lamp.
2. a kind of battery electricity detection method based on Godson 2H platform according to claim 1, it is characterized in that, the testing process of described method is: operating system by battery electric quantity trace routine at set intervals poll read the information about power of battery, first read battery charging and discharging state, if battery being detected charges, read again low charge alert lamp state, if low charge alert lamp is bright, close low charge alert lamp; If battery detected, discharge, then read the existing electric weight of battery, if electric weight is less than warning value at present, turns on low charge alert lamp, otherwise close low charge alert lamp.
3. a kind of battery electricity detection method based on Godson 2H platform according to claim 1 and 2, is characterized in that, the step that described method realizes is as follows:
(1), first read battery charging and discharging status information, under file reading system/sys/class/power_supply/icpc-bq-battery/status battery status value;
(2) if the value that step (1) is returned is Charging, show that battery charges, then from file/dev/loongson1-gpio, read the state of low charge alert lamp, if rreturn value is 1, in/dev/loongson1-gpio, write 0, close low charge alert lamp;
(3), if step (1) rreturn value is not Charging, show that battery discharges, program reads total electric weight of battery from/sys/class/power_supply/icpc-bq-battery/energy_full, from/sys/class/power_supply/icpc-bq-battery/energy_now, read existing electric weight, existing electric weight/total electric weight obtains the existing number percent of battery electric quantity, contrast with low charge alert value, if lower than minimum battery electric quantity percentage, in/dev/loongson1-gpio, write 1, turn on low charge alert lamp, otherwise write 0, close low charge alert lamp,
(4), after program compilation passes through, program is added in start self-starting item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314036.7A CN104049218A (en) | 2014-07-03 | 2014-07-03 | Battery electric quantity detection method based on Loongson 2H platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314036.7A CN104049218A (en) | 2014-07-03 | 2014-07-03 | Battery electric quantity detection method based on Loongson 2H platform |
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| CN104049218A true CN104049218A (en) | 2014-09-17 |
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| CN201410314036.7A Pending CN104049218A (en) | 2014-07-03 | 2014-07-03 | Battery electric quantity detection method based on Loongson 2H platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728067A (en) * | 2017-09-19 | 2018-02-23 | 上海斐讯数据通信技术有限公司 | A kind of terminal power measuring method and system |
| CN108738112A (en) * | 2017-04-20 | 2018-11-02 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Multiple antennas passive data emission system and its implementation based on timeslice poll |
-
2014
- 2014-07-03 CN CN201410314036.7A patent/CN104049218A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108738112A (en) * | 2017-04-20 | 2018-11-02 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Multiple antennas passive data emission system and its implementation based on timeslice poll |
| CN108738112B (en) * | 2017-04-20 | 2021-05-11 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Multi-antenna passive data transmitting system based on time slice polling and implementation method thereof |
| CN107728067A (en) * | 2017-09-19 | 2018-02-23 | 上海斐讯数据通信技术有限公司 | A kind of terminal power measuring method and system |
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Application publication date: 20140917 |
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| RJ01 | Rejection of invention patent application after publication |