CN101587170B - Method for early warning dangerous state of lithium battery and portable electronic device thereof - Google Patents
Method for early warning dangerous state of lithium battery and portable electronic device thereof Download PDFInfo
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- CN101587170B CN101587170B CN2008100983267A CN200810098326A CN101587170B CN 101587170 B CN101587170 B CN 101587170B CN 2008100983267 A CN2008100983267 A CN 2008100983267A CN 200810098326 A CN200810098326 A CN 200810098326A CN 101587170 B CN101587170 B CN 101587170B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to a method for early warning a dangerous state of a lithium battery and a portable electronic device thereof. The method for early warning the dangerous state of the lithium battery comprises the following steps: firstly, acquiring voltage power consumption relation curves of the lithium battery in different predictive average current consumption values of the portable electronic device; then, acquiring the average current consumption value in the operating state of the lithium battery and power consumption values from a first voltage value to a second voltage value in an unit time; and finally, finding a voltage power consumption relation curve corresponding to the average current consumption value in the operating state, and acquiring a warning power consumption value by the voltage power consumption relation curve according to the range between the first voltage value and the second voltage value to be compared with the power consumption value for early warning an abnormal state. The method for early warning the dangerous state of the lithium battery can be used for instantaneously monitoring whether the lithium battery in use is in a dangerous abnormal state or not, and is particularly suitable for practical application.
Description
Technical field
The present invention relates to a kind of method for early warning dangerous state of lithium battery and portable electronic devices thereof, particularly relate to a kind of voltage power consumption relation curve that utilizes different power consumption stream modes, but and the method for early warning dangerous state of lithium battery of early warning dangerous state of lithium battery and portable electronic devices thereof.
Background technology
Consumer portable electronic product now, for example (PersonalDigital Assistant PDA) or notebook computer etc., all is to adopt the main source of lithium battery as electric power supply for mobile phone, personal digital assistant.Therefore, the lithium battery security of manipulating process can produce to a certain degree influence for the overall performance of electronic product.
Present lithium battery power supply is when electronic product, and usually because misoperation or preserve factor such as environment and the state of abnormal condition may take place, for example spontaneous combustion or blast etc. causes the harm of certain degree for user's life, property etc.
This shows that above-mentioned existing lithium battery and portable electronic devices thereof obviously still have inconvenience and defective, and demand urgently further being improved in product structure and use.For solving the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of new method for early warning dangerous state of lithium battery and portable electronic devices thereof, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing lithium battery and portable electronic devices thereof exist, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge thereof, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of new method for early warning dangerous state of lithium battery and portable electronic devices thereof, can improve general existing lithium battery and electronic installation thereof, make it have more practicality.Through constantly research, design, and after studying repeatedly and improving, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing lithium battery exists, and provide a kind of new method for early warning dangerous state of lithium battery, technical matters to be solved are to make its lithium battery state that can immediately monitor in the use whether be in dangerous abnormality, be very suitable for practicality.
Another object of the present invention is to, overcome the defective that existing portable electronic devices exists, and provide a kind of portable electronic devices of new structure, technical matters to be solved is to make it by carrying out method for early warning dangerous state of lithium battery, whether the lithium battery state that can immediately monitor in the use is in dangerous abnormality, and send warning information, thereby be suitable for practicality more.
The object of the invention to solve the technical problems is to adopt following technical scheme to realize.A kind of method for early warning dangerous state of lithium battery according to the present invention's proposition, be to be applied to a portable electronic devices, this portable electronic devices comprises a lithium battery, this method for early warning dangerous state of lithium battery may further comprise the steps: obtain at least one voltage power consumption relation curve, this voltage power consumption relation curve is under should an operating state of portable electronic devices, and one of this lithium battery is estimated average power consumption flow valuve; Obtain the average power consumption flow valuve of an operating state of this lithium battery, and under the average power consumption flow valuve of this operating state, this lithium battery is from a power consumption value of one first magnitude of voltage to, second magnitude of voltage; Searching meet the average power consumption flow valuve of this operating state this estimate average power consumption flow valuve, and be scope with this first magnitude of voltage to this second magnitude of voltage, estimate this voltage power consumption relation curve of average power consumption flow valuve correspondence acquisition one warning power consumption value from this; And whether compare this power consumption value greater than this warning power consumption value, to carry out this early warning dangerous state of lithium battery.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid method for early warning dangerous state of lithium battery, whether this power consumption value of wherein said comparison is greater than this warning power consumption value, to carry out the step of this early warning dangerous state of lithium battery, it more comprises the following step: if the result is for being that then this portable electronic devices sends a warning information; And if the result for not, obtain the average power consumption flow valuve of an operating state of this lithium battery, and under the average power consumption flow valuve of this operating state, this lithium battery is from this power consumption value of one first magnitude of voltage to, second magnitude of voltage.
Aforesaid method for early warning dangerous state of lithium battery, wherein said warning information is to be presented in this portable electronic devices with literal, vibrations or form of sound.
Aforesaid method for early warning dangerous state of lithium battery, the voltage range of wherein said voltage power consumption relation curve are that the rated voltage of this lithium battery extremely can't operating voltage.
Aforesaid method for early warning dangerous state of lithium battery, the electric weight scope of wherein said voltage power consumption relation curve are the electric weight 10% to 100% of this lithium battery.
Aforesaid method for early warning dangerous state of lithium battery, wherein said early warning dangerous state of lithium battery are the blast early warning of state or spontaneous combustion state of this lithium battery.
Aforesaid method for early warning dangerous state of lithium battery, wherein said portable electronic devices be for mobile phone or personal digital assistant (Personal Digital Assistant, PDA).
The object of the invention to solve the technical problems also realizes by the following technical solutions.A kind of portable electronic devices according to the present invention's proposition, this portable electronic devices executive routine has: obtain at least one voltage power consumption relation curve, this voltage power consumption relation curve is under should an operating state of portable electronic devices, and one of this lithium battery is estimated average power consumption flow valuve; Obtain the average power consumption flow valuve of an operating state of this lithium battery, and under the average power consumption flow valuve of this operating state, this lithium battery is from a power consumption value of one first magnitude of voltage to, second magnitude of voltage; Searching meet the average power consumption flow valuve of this operating state this estimate average power consumption flow valuve, and be scope with this first magnitude of voltage to this second magnitude of voltage, estimate this voltage power consumption relation curve of average power consumption flow valuve correspondence acquisition one warning power consumption value from this; And whether compare this power consumption value greater than this warning power consumption value, to carry out this early warning dangerous state of lithium battery.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Whether aforesaid portable electronic devices, this power consumption value of wherein said comparison greater than this warning power consumption value, to carry out this early warning dangerous state of lithium battery, more comprise the following step: if the result is for being that then this portable electronic devices sends a warning information; And if the result for not, obtain the average power consumption flow valuve of an operating state of this lithium battery, and under the average power consumption flow valuve of this operating state, this lithium battery is from this power consumption value of one first magnitude of voltage to, second magnitude of voltage.
Aforesaid portable electronic devices, wherein said warning information is to be presented in this portable electronic devices with literal, vibrations or form of sound.
Aforesaid portable electronic devices, the voltage range of wherein said voltage power consumption relation curve are that the rated voltage of this lithium battery extremely can't operating voltage.
Aforesaid portable electronic devices, the electric weight scope of wherein said voltage power consumption relation curve are the electric weight 10% to 100% of this lithium battery.
Aforesaid portable electronic devices, wherein said early warning dangerous state of lithium battery are the blast early warning of state or spontaneous combustion state of this lithium battery.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
For addressing the above problem, solution proposed by the invention is to provide a kind of method for early warning dangerous state of lithium battery, comprise the following step: set up portable electronic devices at least one voltage power consumption relation curve by experiment method, deposit in portable electronic devices memory body (memory, memory body is a storage medium, storer, internal memory etc., this paper all are called memory body).Wherein, each voltage power consumption relation curve is under corresponding a kind of portable electronic devices operating state, the lithium battery of portable electronic devices installing estimate average power consumption flow valuve.When portable electronic devices carries out the early warning dangerous state of lithium battery program, at first measure in the unit interval scope, the average power consumption flow valuve of the operating state of lithium battery, and under the average power consumption flow valuve of operating state, the unit interval puts first magnitude of voltage to the unit interval and puts the power consumption value that second magnitude of voltage changes.Then, from the memory body of portable electronic devices, seek out the average power consumption flow valuve of estimating that is consistent with the average power consumption flow valuve of operating state, and estimate the voltage power consumption relation curve of average power consumption flow valuve correspondence, be scope according to aforementioned first magnitude of voltage to the second magnitude of voltage then, obtain warning power consumption value at this voltage power consumption relation curve.If judgement power consumption value is greater than warning power consumption value, then portable electronic devices sends warning information notification user and does necessary suitably disposal.Be not more than warning power consumption value if judge the power consumption value, obtain the average power consumption flow valuve of operating state of lithium battery, and under the average power consumption flow valuve of operating state, the unit interval put the power consumption value of first magnitude of voltage to the second magnitude of voltage.
In addition, the present invention proposes a kind of portable electronic devices, by executive routine, can present method for early warning dangerous state of lithium battery, realizes that described identical method solves same problem and reaches identical effect.
By technique scheme, method for early warning dangerous state of lithium battery of the present invention and portable electronic devices thereof have following advantage and beneficial effect at least:
1, method for early warning dangerous state of lithium battery of the present invention, can be in the lithium battery operating process its voltage of at-once monitor or electric weight whether instantaneous variation is excessive, can propose informing of precarious position to the user in advance, can provide safer guarantee the safety of electronic equipment user lives and properties.
2, portable electronic devices of the present invention, pass through executive routine, can present method for early warning dangerous state of lithium battery, can be in the lithium battery operating process its voltage of at-once monitor or electric weight whether instantaneous variation is excessive, by portable electronic devices informing of precarious position proposed.
In sum, the invention relates to a kind of method for early warning dangerous state of lithium battery and portable electronic devices thereof, this method for early warning dangerous state of lithium battery comprises step: at first, obtain the portable electronic devices difference and estimate under the average power consumption flow valuve, the voltage power consumption relation curve of lithium battery.Then, in a unit interval, obtain the average power consumption flow valuve of operating state of lithium battery and first magnitude of voltage to the second magnitude of voltage power consumption value between the two.At last, seek and the corresponding voltage power consumption of the average power consumption flow valuve of operating state relation curve, and, obtain warning power consumption value with this voltage power consumption relation curve according to first magnitude of voltage to the second range of voltage values, compare with the power consumption value, can provide alert under the abnormality.Whether the lithium battery state that method for early warning dangerous state of lithium battery of the present invention can immediately be monitored in the use is in dangerous abnormality, is very suitable for practicality.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on method, product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing lithium battery and portable electronic devices thereof have the outstanding effect of enhancement, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Figure 1A is the synoptic diagram of the lithium battery voltage power consumption relation curve of method for early warning dangerous state of lithium battery of the present invention and portable electronic devices preferred embodiment thereof.
Figure 1B is the synoptic diagram of the lithium battery voltage power consumption relation curve of method for early warning dangerous state of lithium battery of the present invention and portable electronic devices preferred embodiment thereof.
Fig. 2 is the process flow diagram of method for early warning dangerous state of lithium battery preferred embodiment of the present invention.
Step S100: obtain voltage power consumption relation curve, under the operating state of the corresponding portable electronic devices of voltage power consumption relation curve, lithium battery estimate average power consumption flow valuve
Step S110: obtain the average power consumption flow valuve of operating state of lithium battery, and under the average power consumption flow valuve of operating state, lithium battery is from the power consumption value of first magnitude of voltage to the second magnitude of voltage
Step S120: seek and to meet the average power consumption flow valuve of estimating of the average power consumption flow valuve of operating state, and be scope with first magnitude of voltage to the second magnitude of voltage, from the voltage power consumption relation curve of estimating average power consumption flow valuve correspondence, acquisition warning power consumption value
Step S130: whether comparison power consumption value is greater than warning power consumption value, to carry out early warning dangerous state of lithium battery
Step S140: portable electronic devices sends warning information
Embodiment
Reach technological means and the effect thereof that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to method for early warning dangerous state of lithium battery and its embodiment of portable electronic devices, method for early warning step, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.By the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the present invention is limited.
See also shown in Figure 1A and Figure 1B, Figure 1A is the synoptic diagram of the lithium battery voltage power consumption relation curve of method for early warning dangerous state of lithium battery of the present invention and portable electronic devices preferred embodiment thereof, and Figure 1B is the synoptic diagram of the lithium battery voltage power consumption relation curve of this preferred embodiment.In Figure 1A and 1B, a, b, c, d, e or f curve are to represent portable electronic devices respectively under different power consumption flow valuves, lithium battery voltage power consumption relation curve.X-axis is a lithium battery power consumption value, and scope is from electric weight 10% to 100%, and Y-axis is a lithium battery voltage value, scope from rated voltage to the voltage that can't operate.Wherein, the power consumption flow valuve is that (Personal Digital Assistant PDA) waits portable electronic devices to operate in current sinking value under the states such as standby, conversation or running Multimedia Program for mobile phone or personal digital assistant.
Seeing also shown in Figure 2ly, is the process flow diagram of this bright method for early warning dangerous state of lithium battery preferred embodiment.Please be beneficial to clear understanding simultaneously in conjunction with consulting shown in Figure 1A and Figure 1B.The method for early warning dangerous state of lithium battery of a preferred embodiment of the present invention, lithium battery are to be used for a portable electronic devices, and it comprises the following step:
At first, obtain voltage power consumption relation curve, under the operating state of the corresponding portable electronic devices of voltage power consumption relation curve, lithium battery estimate average power consumption flow valuve (step S100).Portable electronic devices often faces multiple operational states in use, and all operates in different power consumption stream, and the voltage of its lithium battery and electric weight also consume difference to some extent.Therefore, the present invention is earlier with the average power consumption flow valuve of estimating under the various modes of operation of experiment method simulation portable electronic devices, and the voltage power consumption relation curve of corresponding lithium battery, be stored in the storer of portable electronic devices, as the reference frame of early warning dangerous state of lithium battery.
Then, obtain the average power consumption flow valuve of operating state of lithium battery, and under the average power consumption flow valuve of operating state, lithium battery is from the power consumption value (step S110) of first magnitude of voltage to the second magnitude of voltage.The control chip of portable electronic devices will be a benchmark with a unit interval, calculate the average power consumption stream of operating state of lithium battery, and the power consumption value of its first magnitude of voltage to the second magnitude of voltage of measurement, this unit interval can for example be 5.12 seconds, also can decide on demand.Wherein, represent first magnitude of voltage, represent second magnitude of voltage at the termination time of the unit interval point magnitude of voltage that measures at the magnitude of voltage that start time point measures of unit interval.
Then, seek and to meet the average power consumption flow valuve of estimating of the average power consumption flow valuve of operating state, and be scope with first magnitude of voltage to the second magnitude of voltage, from the voltage power consumption relation curve of estimating average power consumption flow valuve correspondence, acquisition warning power consumption value (step S120).Further, portable electronic devices will be sought and obtain the average power consumption flow valuve of estimating that the average power consumption stream of operating state is consistent, and from the storer (memory body) of portable electronic devices, seek and estimate the corresponding voltage power consumption of average power consumption flow valuve relation curve, and obtain warning power consumption value at this voltage power consumption relation curve according to above-mentioned first magnitude of voltage to the second range of voltage values.
Then, whether comparison power consumption value is greater than warning power consumption value, to carry out early warning dangerous state of lithium battery (step S130).
If the result is for being that then portable electronic devices sends warning information (step S140).If power consumption is greater than warning power consumption, the expression lithium battery has unusually (as spontaneous combustion or blast etc. may take place) precarious position, and portable electronic devices can in time show guards against the information notification user, and this warning information can literal, vibrations or form of sound present.
If the result then returns the average power consumption flow valuve of the operating state of obtaining lithium battery for not, and under the average power consumption flow valuve of operating state, lithium battery is from the power consumption value (step S110) of first magnitude of voltage to the second magnitude of voltage.
Wherein, the method for early warning dangerous state of lithium battery of above-mentioned preferred embodiment can be carried out the method for early warning dangerous state of lithium battery program by portable electronic devices, can realize that described identical method solves same problem and can reach identical effect.
In sum, method for early warning dangerous state of lithium battery of the present invention, be to set up portable electronic devices earlier under at least one power consumption stream mode, its lithium battery voltage power consumption relation curve, obtain then under the lithium battery operating state, voltage is done corresponding comparison with the power consumption variation in the unit interval, reaches to remind user's lithium battery may produce as precarious positions such as spontaneous combustion or blasts in advance, thereby can increase the security that battery uses, be very suitable for practicality.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (12)
1. a method for early warning dangerous state of lithium battery is to be applied to a portable electronic devices, and this portable electronic devices comprises a lithium battery, it is characterized in that this method for early warning dangerous state of lithium battery may further comprise the steps:
Obtain at least one voltage power consumption relation curve, this voltage power consumption relation curve is under should an operating state of portable electronic devices, and one of this lithium battery is estimated average power consumption flow valuve;
Obtain the average power consumption flow valuve of an operating state of this lithium battery, and under the average power consumption flow valuve of this operating state, this lithium battery is from a power consumption value of one first magnitude of voltage to, second magnitude of voltage;
Searching meet the average power consumption flow valuve of this operating state this estimate average power consumption flow valuve, and be scope with this first magnitude of voltage to this second magnitude of voltage, estimate this voltage power consumption relation curve of average power consumption flow valuve correspondence acquisition one warning power consumption value from this; And
Whether compare this power consumption value greater than this warning power consumption value, to carry out this early warning dangerous state of lithium battery.
2. whether method for early warning dangerous state of lithium battery according to claim 1 is characterized in that this power consumption value of wherein said comparison greater than this warning power consumption value, and to carry out the step of this early warning dangerous state of lithium battery, it more comprises the following step:
If the result is for being that then this portable electronic devices sends a warning information; And
If the result obtains the average power consumption flow valuve of an operating state of this lithium battery for not, and under the average power consumption flow valuve of this operating state, this lithium battery is from this power consumption value of one first magnitude of voltage to, second magnitude of voltage.
3. method for early warning dangerous state of lithium battery according to claim 2 is characterized in that wherein said warning information is to be presented in this portable electronic devices with literal, vibrations or form of sound.
4. method for early warning dangerous state of lithium battery according to claim 1 is characterized in that the voltage range of wherein said voltage power consumption relation curve extremely can't operating voltage for the rated voltage of this lithium battery.
5. method for early warning dangerous state of lithium battery according to claim 1 is characterized in that the electric weight 10% to 100% of the electric weight scope of wherein said voltage power consumption relation curve for this lithium battery.
6. method for early warning dangerous state of lithium battery according to claim 1 is characterized in that wherein said early warning dangerous state of lithium battery is the blast early warning of state or spontaneous combustion state of this lithium battery.
7. portable electronic devices is characterized in that this portable electronic devices carries out the following step:
Obtain at least one voltage power consumption relation curve, this voltage power consumption relation curve is under should an operating state of portable electronic devices, and one of this lithium battery is estimated average power consumption flow valuve;
Obtain the average power consumption flow valuve of an operating state of this lithium battery, and under the average power consumption flow valuve of this operating state, this lithium battery is from a power consumption value of one first magnitude of voltage to, second magnitude of voltage;
Searching meet the average power consumption flow valuve of this operating state this estimate average power consumption flow valuve, and be scope with this first magnitude of voltage to this second magnitude of voltage, estimate this voltage power consumption relation curve of average power consumption flow valuve correspondence acquisition one warning power consumption value from this; And
Whether compare this power consumption value greater than this warning power consumption value, to carry out this early warning dangerous state of lithium battery.
8. portable electronic devices according to claim 7 is characterized in that this power consumption value of wherein said comparison whether greater than this warning power consumption value, to carry out this early warning dangerous state of lithium battery, more comprises the following step:
If the result is for being that then this portable electronic devices sends a warning information; And
If the result obtains the average power consumption flow valuve of an operating state of this lithium battery for not, and under the average power consumption flow valuve of this operating state, this lithium battery is from this power consumption value of one first magnitude of voltage to, second magnitude of voltage.
9. portable electronic devices according to claim 8 is characterized in that wherein said warning information is to be presented in this portable electronic devices with literal, vibrations or form of sound.
10. portable electronic devices according to claim 7 is characterized in that the voltage range of wherein said voltage power consumption relation curve extremely can't operating voltage for the rated voltage of this lithium battery.
11. portable electronic devices according to claim 7 is characterized in that the electric weight 10% to 100% of the electric weight scope of wherein said voltage power consumption relation curve for this lithium battery.
12. portable electronic devices according to claim 7 is characterized in that wherein said early warning dangerous state of lithium battery is the blast early warning of state or spontaneous combustion state of this lithium battery.
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| JP5577838B2 (en) * | 2010-05-13 | 2014-08-27 | ソニー株式会社 | Battery pack, electronic device and battery pack inspection method |
| CN102508172A (en) * | 2011-11-23 | 2012-06-20 | 中兴通讯股份有限公司 | Calculation method for electric quantities of battery, device and terminal |
| CN103884987B (en) * | 2012-12-19 | 2017-11-07 | 北京创智信科科技股份有限公司 | The detection method of battery |
| CN109642929B (en) * | 2017-08-25 | 2021-07-30 | Oppo广东移动通信有限公司 | Terminal equipment and battery abnormity monitoring method and system thereof |
| CN112345823A (en) * | 2020-10-20 | 2021-02-09 | 深圳市新国都支付技术有限公司 | Power consumption testing method, device and system and storage medium |
| CN114876782B (en) * | 2022-05-13 | 2024-03-12 | 三一汽车制造有限公司 | Hydraulic pump fault detection method and device and working machine |
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| CN1490194A (en) * | 2002-10-14 | 2004-04-21 | 金百达科技有限公司 | Monitoring method and device with early warning for power supply on vehicle |
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| CN1490194A (en) * | 2002-10-14 | 2004-04-21 | 金百达科技有限公司 | Monitoring method and device with early warning for power supply on vehicle |
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| JP特开2007-316080A 2007.12.06 |
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