CN109031148A - Battery electricity detection method and system - Google Patents
Battery electricity detection method and system Download PDFInfo
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- CN109031148A CN109031148A CN201810981147.1A CN201810981147A CN109031148A CN 109031148 A CN109031148 A CN 109031148A CN 201810981147 A CN201810981147 A CN 201810981147A CN 109031148 A CN109031148 A CN 109031148A
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- electricity
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- dip time
- battery capacity
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Abstract
The present invention relates to a kind of battery electricity detection method and systems, and wherein method is the following steps are included: detect the instantaneous voltage of battery, to analyze the dip time of battery being periodically depressured；Be set according to the dip time, the electricity sampling period is greater than the dip time electricity sampling period；Multiple sampling electricity are obtained to battery capacity timing sampling according to the electricity sampling period, and filter out the sampling electricity that battery capacity sampling instant is fallen into the dip time, analyze remaining sampling electricity, to obtain the final sampled value of battery.Above-mentioned battery capacity is analyzed and electric power detection event is avoided to occur within the same period with the task of periodical pressure drop is caused, and avoids the problem that device periodically processing task causes mutation between short time voltage to influence electric quantity acquisition accuracy.
Description
Technical field
The present invention relates to field of batteries, more particularly to a kind of battery electricity detection method and system.
Background technique
The demand of battery capacity detection, high-precision battery are substantially all using battery powered electronic equipment on the market
Electric power detection uses Coulomb meter substantially to monitor battery power consumption, but such method complexity is higher, and equipment addition is independent
Battery capacity detection chip also will increase dramatically cost.
Cost is relatively low for the method for judging remaining capacity by obtaining cell voltage, and realization is relatively easy to, therefore becomes low
The general choice of cost and the not high equipment application of required precision.This kind of method will be between cell voltage and battery dump energy
Corresponding relationship transforms into the algorithm for being easy to code realization, need to only obtain real-time cell voltage in actual use, can calculate
To corresponding remaining power voltage.
But acquisition cell voltage is not high come the method precision for judging remaining capacity at present, and measured value is unstable, this is to design
Person and user bring larger puzzlement.Currently, calculating battery dump energy residual electric quantity obtained more by cell voltage
Roughly, precision is not high.Especially in the continually changing application of load power consumption, collected cell voltage is constantly beated, and leads to electricity
Pond remaining capacity calculated value has larger fluctuation, brings very big puzzlement to user.It, may in actual battery capacity collection process
Periodic tasks handling events are encountered, periodical pressure drop is generated, cause electric quantity acquisition inaccurate.
Summary of the invention
Based on this, it is necessary to for the inaccurate problem of above-mentioned traditional battery measuring method measurement remaining capacity, provide
A kind of high-precision battery electricity detection method and system.
A kind of battery electricity detection method, which comprises the following steps:
The instantaneous voltage of battery is detected, to analyze the dip time of battery being periodically depressured；
Be set according to the dip time, the electricity sampling period is greater than the dip time electricity sampling period；
Multiple sampling electricity are obtained to battery capacity timing sampling according to the electricity sampling period, and filter out battery electricity
Amount sampling instant falls into the sampling electricity in the dip time, analyzes remaining sampling electricity, to obtain finally adopting for battery
Sample value.
In a wherein preferred embodiment, the electricity sampling period is less than twice of the dip time.
In a wherein preferred embodiment, the quantity at least three of the sampling electricity.
In a wherein preferred embodiment, average value processing is made to the remaining sampling electricity, finally to be adopted
Sample value.
Above-mentioned battery capacity is analyzed and is avoided electric power detection event and causes the task of periodical pressure drop in the same period
Interior generation avoids the problem that device periodically processing task causes mutation between short time voltage to influence electric quantity acquisition accuracy.
A kind of battery capacity detection system characterized by comprising
Voltage detection module, to detect the instantaneous voltage of battery, to analyze the dip time of battery being periodically depressured；
Sampling module, the electricity sampling period is arranged according to the dip time, the electricity sampling period is greater than institute
State dip time；
Analysis module, to obtain multiple sampling electricity to battery capacity timing sampling according to the electricity sampling period
Amount, and the sampling electricity that battery capacity sampling instant is fallen into the dip time is filtered out, remaining sampling electricity is analyzed, with
To the final sampled value of battery.
In a wherein preferred embodiment, the electricity sampling period is less than twice of the dip time.
In a wherein preferred embodiment, the quantity at least three of the sampling electricity.
In a wherein preferred embodiment, the analysis module makees average value processing to the remaining sampling electricity,
To obtain final sampled value.
Above-mentioned battery capacity detection system avoids electric power detection event and causes the task of periodical pressure drop in the same time
Occur in section, avoids the problem that device periodically processing task causes mutation between short time voltage to influence electric quantity acquisition accuracy.
Detailed description of the invention
Fig. 1 is the flow chart of the battery electricity detection method of a preferred embodiment of the invention；
Fig. 2 is the module diagram of the battery capacity detection system of a preferred embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figure 1, present embodiment discloses a kind of battery electricity detection method, the battery electricity detection method is main
The following steps are included:
S10: detecting the instantaneous voltage of battery, to analyze the dip time of battery being periodically depressured；
In the continually changing application of load power consumption, collected cell voltage is constantly beated, and leads to battery dump energy
Calculated value has larger fluctuation, brings very big puzzlement to user.
It in actual battery capacity collection process, can be potentially encountered periodic tasks handling events, generate periodically pressure
Drop causes electric quantity acquisition inaccurate.
In this step, it will test equipment and be connected to mesuring battary, to detect the instantaneous voltage of battery, the instantaneous voltage
To provide analysis foundation for the dip time of subsequent analysis mesuring battary being periodically depressured.Detection device is according to above-mentioned instantaneous
The dip time that voltage analysis is periodically depressured.
It is connected on the electrode of mesuring battary for example, will test equipment, detects the real-time instantaneous voltage of battery, analyzed
Lead to the drop-out time of periodical pressure drop, i.e., each voltage measures to be measured from the time dropped between rise, the present embodiment
The dip time of battery cycle decompression is 20ms.
S20: the electricity sampling period is arranged according to the dip time, when the electricity sampling period is greater than the decompression
Between；
In this step, the sampling period of the battery capacity is detected according to the dip time setting analyzed in S10, it should
The sampling period of battery capacity is greater than above-mentioned dip time, and the above-mentioned sampling period is that do not have adjacent sampled point institute interval time.
Embodiment in the step of meeting S10 is discussed, if analyze the periodic dip time of mesuring battary is 20ms, then
It is 30ms that the sampling period, which can be set, that is to say, that carries out electricity sampling to mesuring battary every 30ms.In this way to mesuring battary
In multiple repairing weld, only one most sampled point are fallen into above-mentioned dip time.
The electricity sampling period is less than twice of the dip time.That is set in above-described embodiment to adopt
The sample period is not more than 40ms.
S30: multiple sampling electricity are obtained to battery capacity timing sampling according to the electricity sampling period, and filter out electricity
Pond electricity sampling instant falls into the sampling electricity in the dip time, analyzes remaining sampling electricity, to obtain battery most
Whole sampled value.
In this step, carried out carrying out multiple electricity sampling to mesuring battary according to the electricity sampling period, and filter out electricity
Pond electricity sampling instant falls into the sampling electricity in the dip time, analyzes remaining sampling electricity, to obtain battery most
Whole sampled value.
Embodiment in the step of meeting S20 is discussed, and when dip time is 20ms, the sampling period is set to 30ms, it is assumed that above-mentioned
Certain of mesuring battary primary decompression moment by 15ms to 35ms when cut-off, electricity sampling instant 1ms, 31ms and 61ms
Deng, in this way, the only electricity sampled point at 31ms moment fall into above-mentioned dip time, filter out positioned at 31ms moment resulting electricity
Sampled point analyzes 1ms and 61ms, obtains final electricity sampled value.
In present embodiment, the quantity at least three of above-mentioned sampling electricity, can guarantee so final sampled value can more subject to
Really.
In present embodiment, this step makees average value processing to the remaining sampling electricity, to obtain final sampled value.And
Using the average value as final detected value, it is clear that the value is more accurate, more approaches actual value.
Above-mentioned battery electricity detection method in present embodiment avoids electric power detection event and leads to periodical pressure drop
Task occurs within the same period, and it is quasi- to influence electric quantity acquisition for mutation between avoiding device periodically processing task from leading to short time voltage
The problem of true property.
As shown in Fig. 2, disclosing a kind of battery capacity detection system 100, the electricity in another preferred embodiment of the present invention
Pond power testing system 100 includes voltage detection module 110, sampling module 120, analysis module 130.
Instantaneous voltage of the above-mentioned voltage detection module 110 to detect battery, to analyze the drop of battery being periodically depressured
Press the time.
In the continually changing application of load power consumption, collected cell voltage is constantly beated, and leads to battery dump energy
Calculated value has larger fluctuation, brings very big puzzlement to user.
It in actual battery capacity collection process, can be potentially encountered periodic tasks handling events, generate periodically pressure
Drop causes electric quantity acquisition inaccurate.
Above-mentioned voltage detection module 110 is connected to mesuring battary, and to detect the instantaneous voltage of battery, which is used
To provide analysis foundation for the dip time of subsequent analysis mesuring battary being periodically depressured.Voltage detection module 110 is according to upper
It states instantaneous voltage and analyzes the dip time being periodically depressured.
For example, voltage detection module 110 is connected on the electrode of mesuring battary, the real-time instantaneous electricity of battery is detected
Pressure, analysis lead to the drop-out time of periodical pressure drop, i.e., each voltage is from dropping to the time between ging up, in the present embodiment,
Measuring the dip time that mesuring battary is periodically depressured is 20ms.
Above-mentioned sampling module 120 is to be arranged electricity sampling period, the electricity sampling period according to the dip time
Greater than the dip time；
The dip time setting detection that above-mentioned sampling module 120 is analyzed according to above-mentioned voltage detection module 110 should
The sampling period of battery capacity, the sampling period of the battery capacity are greater than above-mentioned dip time, and the above-mentioned sampling period is per adjacent
Sampled point institute interval time.Above-mentioned sampling module 120 carries out electricity sampling to battery according to the sampling period of setting.
Connect above embodiments discussion, if analyze the periodic dip time of mesuring battary be 20ms, then sampling module
120 can be set the sampling period as 30ms, that is to say, that carry out electricity sampling to mesuring battary every 30ms.In this way to be measured
In battery multiple repairing weld, only one most sampled point are fallen into above-mentioned dip time.
The electricity sampling period is less than twice of the dip time.That is set in above-described embodiment to adopt
The sample period is not more than 40ms.
Above-mentioned analysis module 130 is to obtain multiple adopt to battery capacity timing sampling according to the electricity sampling period
Sample electricity, and the sampling electricity that battery capacity sampling instant is fallen into the dip time is filtered out, remaining sampling electricity is analyzed,
To obtain the final sampled value of battery.
Specifically, above-mentioned analysis module 130 carried out carrying out multiple electricity to mesuring battary according to the electricity sampling period
Sampling, and the sampling electricity that battery capacity sampling instant is fallen into the dip time is filtered out, remaining sampling electricity is analyzed, with
Obtain the final sampled value of battery.
Above embodiments discussion is connect, when dip time is 20ms, the sampling period is set to 30ms, it is assumed that above-mentioned mesuring battary
Certain primary decompression moment by 15ms to 35ms when cut-off, electricity sampling instant 1ms, 31ms and 61ms etc., in this way, only
The electricity sampled point at 31ms moment is fallen into above-mentioned dip time, is filtered out positioned at 31ms moment resulting electricity sampled point, to 1ms
And 61ms is analyzed, and final electricity sampled value is obtained.
In present embodiment, the quantity at least three of above-mentioned sampling electricity, can guarantee so final sampled value can more subject to
Really.
In present embodiment, remaining sampling electricity described in above-mentioned analysis module 130 makees average value processing, finally to be adopted
Sample value.And using the average value as final detected value, it is clear that the value is more accurate, more approaches actual value.
Above-mentioned battery capacity detection system in present embodiment avoids electric power detection event and leads to periodical pressure drop
Task occurs within the same period, and it is quasi- to influence electric quantity acquisition for mutation between avoiding device periodically processing task from leading to short time voltage
The problem of true property.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of battery electricity detection method, which comprises the following steps:
The instantaneous voltage of battery is detected, to analyze the dip time of battery being periodically depressured；
Be set according to the dip time, the electricity sampling period is greater than the dip time electricity sampling period；
Multiple sampling electricity are obtained to battery capacity timing sampling according to the electricity sampling period, and are filtered out battery capacity and adopted
The sample moment falls into the sampling electricity in the dip time, analyzes remaining sampling electricity, to obtain the final sampled value of battery.
2. battery electricity detection method according to claim 1, which is characterized in that the electricity sampling period is less than described
Twice of dip time.
3. battery electricity detection method according to claim 1, which is characterized in that the quantity at least three of the sampling electricity
It is a.
4. battery electricity detection method according to claim 1, which is characterized in that make to the remaining sampling electricity equal
Value processing, to obtain final sampled value.
5. a kind of battery capacity detection system characterized by comprising
Voltage detection module, to detect the instantaneous voltage of battery, to analyze the dip time of battery being periodically depressured；
Sampling module, the electricity sampling period is arranged according to the dip time, the electricity sampling period is greater than the drop
Press the time；
Analysis module, to obtain multiple sampling electricity to battery capacity timing sampling according to the electricity sampling period, and
The sampling electricity that battery capacity sampling instant is fallen into the dip time is filtered out, remaining sampling electricity is analyzed, to obtain electricity
The final sampled value in pond.
6. battery capacity detection module according to claim 5, which is characterized in that the electricity sampling period is less than described
Twice of dip time.
7. battery capacity detection module according to claim 5, which is characterized in that the quantity at least three of the sampling electricity
It is a.
8. battery capacity detection module according to claim 5, which is characterized in that the analysis module is to described remaining
Sampling electricity makees average value processing, to obtain final sampled value.
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| CN201810981147.1A CN109031148A (en) | 2018-08-27 | 2018-08-27 | Battery electricity detection method and system |
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Cited By (1)
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Application publication date: 20181218 |