CN105501154B - Car-mounted terminal dormancy and the method waken up - Google Patents
Car-mounted terminal dormancy and the method waken up Download PDFInfo
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- CN105501154B CN105501154B CN201510948216.5A CN201510948216A CN105501154B CN 105501154 B CN105501154 B CN 105501154B CN 201510948216 A CN201510948216 A CN 201510948216A CN 105501154 B CN105501154 B CN 105501154B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- Combined Controls Of Internal Combustion Engines (AREA)
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Abstract
A kind of method the invention discloses car-mounted terminal dormancy with waking up, the car-mounted terminal dormancy comprises the following steps with the method waken up：AD sampling modules detect the current state of automobile in real time；The amplitude of each axle of gravity accelerometer acquisition automobile gravity acceleration simultaneously exports corresponding amplitude to automobile master controller；If AD sampling modules detect automobile and are in flame-out or dead ship condition, and the amplitude of acceleration of gravity each axle continues to be less than deep-sleep threshold values in 5 minutes, then the master controller of automobile power off and enters deep power down mode, up to automotive ignition or driving wake up；Wherein, 0.3 times of acceleration of gravity amplitude when the deep sleep threshold values is automobile normal running.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of method of car-mounted terminal dormancy with waking up.
Background technology
The electronic equipment that present people onboard install is increasing, and each equipment is consuming automobile days and nights
The electricity of storage battery, often one go on business, storage battery will be in deficient state after the vacation, the damage to automobile storage battery, and
The situation for not putting fire occurs again and again.So power consumption of the vehicle-mounted product in vehicle stall is extremely important.And it is now vehicle-mounted
Product is to be used as dormancy and wake-up signal by ACC signals mostly, is necessarily required to enter the original circuit of vehicle using ACC signals
Row is destroyed, and not only installation inconvenience may also be impacted unsightly but also to after-sale service in the future.Also pass through car with kind
Carry the mode of bus whether to judge Current vehicle in driving states, such a method needs to monitor the data on automobile bus, skill
Art requires complicated, careless slightly, automobile bus can be caused abnormal, or even cause DTC to influence other vehicle-mounted products normally to make
With influence normal vehicle operation that What is more.
The content of the invention
The main purpose of the present invention is：A kind of car-mounted terminal dormancy for the power consumption that can reduce car-mounted terminal as far as possible is provided
With the method for wake-up.
To achieve the above object, the present invention provides a kind of method of car-mounted terminal dormancy with waking up, the car-mounted terminal dormancy
Comprise the following steps with the method for wake-up：
AD sampling modules detect the current state of automobile in real time；
The amplitude of each axle of gravity accelerometer acquisition automobile gravity acceleration simultaneously exports corresponding amplitude to automobile
Master controller；
If AD sampling modules detect automobile and are in flame-out or dead ship condition, and the amplitude of acceleration of gravity each axle is held
Be less than deep-sleep threshold value within continuous 5 minutes, then the master controller of automobile power off and enters deep power down mode, up to automotive ignition or
Drive a vehicle and wake up；Wherein, 0.3 times of acceleration of gravity amplitude when the deep-sleep threshold value is automobile normal running.
Preferably, the step：If AD sampling modules detect automobile and are in flame-out or dead ship condition, and gravity accelerates
The amplitude for spending each axle continues to be less than deep-sleep threshold value in 5 minutes, then the master controller of automobile powers off and enters deep-sleep mould
Formula, up to automotive ignition or driving wake up and comprised the following steps：
If AD sampling modules detect automobile and are currently at flameout state or dead ship condition, and acceleration of gravity each axle
When amplitude continues 5 minutes less than deep-sleep threshold value, then the master controller of automobile powers off and enters deep power down mode；
Persistently it is more than or equal to 30 minutes if AD sampling modules detect current parking of automobile, and gravity accelerometer
When the amplitude for detecting each axle is more than or equal to either shallow sleep threshold, then AD sampling modules continuous firing and entrance either shallow dormancy
Pattern；Wherein, 0.5 times of acceleration of gravity amplitude when the either shallow sleep threshold is automobile normal running state；
Persistently it is more than or equal to 30 minutes if AD sampling modules detect current parking of automobile, and gravity accelerometer
When the amplitude for detecting each axle is less than the either shallow sleep threshold, then the master controller of automobile powers off and enters deep-sleep mould
Formula.
Preferably, the step：If AD sampling modules detected current parking of automobile more than or equal to 30 minutes, and gravity
Acceleration detection to each axle amplitude be more than or equal to either shallow sleep threshold when, then AD sampling modules continuous firing and enter it is shallow
Spend park mode further comprising the steps of：
If gravity accelerometer detects that the amplitude of each axle is more than or equal to traveling threshold value, traveling threshold value is carried out
Calibration, by traveling threshold value up-regulation 10%；Wherein, acceleration of gravity amplitude when the traveling threshold value is automobile normal running state
0.8 times.
Preferably, the step：Persistently it is more than or equal to 30 minutes if AD sampling modules detect current parking of automobile, and
When the amplitude that gravity accelerometer detects each axle is less than the either shallow sleep threshold, then the master controller power-off of automobile
And it is further comprising the steps of to enter deep power down mode：
Deep-sleep threshold value is calibrated, deep-sleep threshold value is raised 10%.
Preferably, it is further comprising the steps of：
Gravity accelerometer monitors the amplitude of automobile gravity acceleration each axle and exports corresponding amplitude in real time；
If the amplitude of each axle of acceleration of gravity is more than deep-sleep threshold value, the work of AD sampling modules is waken up, and work as AD
Electricity and start work when sampling module detects ignition signal or train signal, on the master controller of automobile；
If the amplitude of each axle of acceleration of gravity is more than deep-sleep threshold value, the work of AD sampling modules is waken up, and AD samples
When module does not detect ignition signal or train signal, then AD sampling modules continuous firing and enter either shallow park mode.
Preferably, the step：AD sampling modules detect that the current state of automobile is specific as follows in real time：
AD sampling modules obtain the magnitude of voltage of automobile storage battery in real time；
If the magnitude of voltage of automobile storage battery declines and maintains a stable magnitude of voltage, automobile is in flameout state；
If the magnitude of voltage of automobile storage battery maintains a stable magnitude of voltage always, automobile is in dead ship condition；
If recovering after the magnitude of voltage rapid drawdown of automobile storage battery, automobile is in fired state.
Preferably, continuously surpass in dead ship condition if AD sampling modules are detected simultaneously by automobile with gravity accelerometer
When crossing 100 times, deep-sleep threshold value is calibrated, deep-sleep threshold value is lowered 10%.
The car-mounted terminal dormancy that the present invention is provided passes through AD sampling modules and acceleration of gravity with the method waken up, this method
Sensor combines accurately to judge state that automobile is current.When AD sampling modules and gravity accelerometer are detected simultaneously by vapour
When car is in dead ship condition, then deep-sleep signal is triggered so that automobile master controller powers off and enters deep-sleep, be only left
Gravity accelerometer works to detect the state of automobile.The present invention only leaves gravity and added when automobile is in dead ship condition
Velocity sensor works, so that power consumption of the automobile in parking is greatly reduced, so as to overcome in the prior art due to vehicle-mounted
Power consumption of terminal is excessive and causes automobile can not light a fire the defect of startup.
Brief description of the drawings
Fig. 1 is car-mounted terminal dormancy of the present invention and the schematic flow sheet of the method first embodiment waken up；
Fig. 2 is car-mounted terminal dormancy of the present invention and the schematic flow sheet of the method second embodiment waken up；
Fig. 3 is car-mounted terminal dormancy of the present invention and the schematic flow sheet of the method 3rd embodiment waken up；
Fig. 4 is car-mounted terminal dormancy of the present invention and the schematic flow sheet of the method fourth embodiment waken up；
Fig. 5 is car-mounted terminal dormancy of the present invention and the schematic flow sheet of the embodiment of method the 5th waken up.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of method of car-mounted terminal dormancy with waking up.
It is car-mounted terminal dormancy of the present invention and the schematic flow sheet of the method first embodiment waken up referring to figs. 1 to 5, Fig. 1；
Fig. 2 is car-mounted terminal dormancy of the present invention and the schematic flow sheet of the method second embodiment waken up；Fig. 3 is car-mounted terminal of the present invention
Dormancy and the schematic flow sheet of the method 3rd embodiment waken up；Fig. 4 is the method the of car-mounted terminal dormancy of the present invention and wake-up
The schematic flow sheet of four embodiments；Fig. 5 is that the flow of method fiveth embodiment of the car-mounted terminal dormancy of the present invention with waking up is illustrated
Figure.The car-mounted terminal dormancy that the present embodiment is provided and the method waken up, the car-mounted terminal dormancy include following with the method waken up
Step：
Step S10, AD sampling module detects the current state of automobile in real time；
In the present embodiment, AD sampling modules are detected to the voltage of automobile storage battery.It should be noted that in this implementation
In example, according to the change of automobile storage battery voltage, the state of automobile is roughly divided into three below state：Fired state, flameout state
And dead ship condition.Usually, when automobile is in ignition point, recover after automobile storage battery voltage dip.Usually, battery voltage
Voltage declines voltage recovery after 1V, and 100ms suddenly in 100ms.When automobile is in flame-out moment, automobile storage battery voltage
Continuous decrease simultaneously maintains a stable magnitude of voltage.Usually, battery voltage about drops to 12.5~13.5V in 30s
In the range of, and voltage is in plateau after decline.When automobile is in dead ship condition, then automobile storage battery voltage is constantly in
Fair state.AD sampling modules are current so as to get automobile by detecting the voltage change trend of automobile storage battery
State.
Step S20, the amplitude of each axle of gravity accelerometer acquisition automobile gravity acceleration simultaneously exports corresponding width
It is worth to automobile master controller.
In the present embodiment, amplitude of the gravity accelerometer in real time to the acceleration of gravity of automobile each axle is obtained
Take, and export corresponding amplitude to automobile master controller.Specifically, amplitude of the gravity accelerometer to X-axis, Y-axis and Z axis
Obtained.It should be noted that in the present embodiment, gravity accelerometer divides according to the amplitude of each axle detected
For three below state：Automobile normal running state, parking of automobile state and driving door state.When automobile is in normally travel shape
During state, due to automobile engine, the vibrations of sound equipment, gravity accelerometer can be made to be in a kind of state of continuous vibration.
Ignore the transfer of traveling process during this to, vibration amplitude caused by speed change, deceleration strip etc..Because these situation influence times
It is very short and cause vibration amplitude big.That is, when the amplitude that acceleration of gravity detects acceleration of gravity each axle is persistently shaken
When dynamic and amplitude is close, it can be determined that be in normally travel state to automobile.When automobile is in dead ship condition, acceleration of gravity
Deviator on each axle is almost unchanged.Therefore, when gravity accelerometer detect each axle amplitude it is constant when, it can be determined that
Automobile is in dead ship condition.It should be noted that because gravity accelerometer is in actual use by external interference ratio
It is larger.Such as it is parked in (side often has truck to speed past) by the road, (fortune of the large scale equipment on building site beside construction site
Turn etc.), all it is likely to result in automobile and slightly shakes.When automobile door opening, people open car door and enter driver's seat wiping direction disk
Deng can all cause vibrations (situation about particularly placing the device in below driver's seat).In this period, acceleration of gravity
Deviator on each axle of sensor can change, but not be continuous.
Step S30, if AD sampling modules detect automobile when being in flame-out or dead ship condition, and acceleration of gravity each
The amplitude of axle continues to be less than deep-sleep threshold value in 5 minutes, then the master controller of automobile powers off and enters deep power down mode, until
Automotive ignition or driving and wake up；Wherein, the 0.3 of acceleration of gravity amplitude when the deep-sleep threshold value is automobile normal running
Times.
In the present embodiment, automobile master controller receives the vehicle condition of AD sampling modules output, and receives gravity simultaneously
The amplitude of acceleration transducer output.When AD sampling modules, which detect current automobile, is in flameout state or dead ship condition,
And the amplitude that detects of gravity accelerometer continue to be respectively less than automobile in 5 minutes less than deep-sleep threshold value, i.e. amplitude it is normal
0.3 times of acceleration of gravity amplitude during traveling, then prove that automobile is currently at dead ship condition, automobile master controller is powered off and entered
Deep power down mode, is only left acceleration of gravity work and monitors vehicle condition in real time.Due to the work(of gravity accelerometer
Consume very little, generally 1mA.Therefore, at automobile during dead ship condition, the power consumption of car-mounted terminal can be substantially reduced.
The car-mounted terminal dormancy that the present invention is provided passes through AD sampling modules and acceleration of gravity with the method waken up, this method
Sensor combines accurately to judge state that automobile is current.When AD sampling modules and gravity accelerometer are detected simultaneously by vapour
When car is in dead ship condition, then deep-sleep signal is triggered so that automobile master controller powers off and enters deep-sleep, be only left
Gravity accelerometer works to detect the state of automobile.The present invention only leaves gravity and added when automobile is in dead ship condition
Velocity sensor works, so that power consumption of the automobile in parking is greatly reduced, so as to overcome in the prior art due to vehicle-mounted
Power consumption of terminal is excessive and causes automobile can not light a fire the defect of startup.
Further, to accurately distinguish the state that automobile is currently located, in the present embodiment, step S30：The mould if AD samples
Block detects automobile and is in flame-out or dead ship condition, and the amplitude of acceleration of gravity each axle continues less than depth to stop for 5 minutes
Dormancy threshold value, then the master controller of automobile power off and enter deep power down mode, until automotive ignition or driving and wake up including with
Lower step：
If AD sampling modules detect automobile and are currently at flameout state or dead ship condition, and acceleration of gravity each axle
When amplitude continues 5 minutes less than deep-sleep threshold value, it may be determined that automobile is in the master controller of complete dead ship condition, then automobile
Power off and enter deep power down mode, to reduce the power consumption of car-mounted terminal.
Persistently it is more than or equal to 30 minutes if AD sampling modules detect current parking of automobile, and gravity accelerometer
It is (heavy when either shallow sleep threshold is automobile normal running state when detecting the amplitude of each axle more than or equal to either shallow sleep threshold
0.5 times of power acceleration amplitude), then prove that automobile is currently at the state of a non-non- parking of traveling, for example：Automobile may stop
Beside a mixed and disorderly building site or driver's extended break on automobile.Now, AD sampling modules continuous firing and enter it is shallow
Spend park mode.
If AD sampling modules detected current parking of automobile more than or equal to 30 minutes, and gravity accelerometer is detected
To each axle amplitude be less than either shallow sleep threshold when, then the master controller of automobile powers off and enters deep power down mode.
Further, to improve the degree of accuracy of car-mounted terminal dormancy and the method waken up in use, in this implementation
In example, step：If AD sampling modules detected current parking of automobile more than or equal to 30 minutes, and acceleration of gravity is detected respectively
When the amplitude of individual axle is more than or equal to either shallow sleep threshold, then AD sampling modules continuous firing and also wrap into either shallow park mode
Include following steps：
If gravity accelerometer detect each axle amplitude be more than or equal to traveling threshold value (traveling threshold value be automobile just
0.8 times of acceleration of gravity amplitude during normal transport condition) when, traveling threshold value is calibrated, by traveling threshold value up-regulation 10%.
That is, instantly during one-time detection vehicle condition, when automobile master controller will travel adjusting thresholds for automobile normal running state
0.88 times of acceleration of gravity amplitude.If after adjustment, testing result is still identical with before adjustment, then it is assumed that, AD sampling moulds
Block testing result malfunctions.
Further, to improve the degree of accuracy of car-mounted terminal dormancy and the method waken up in use, in this implementation
In example, the step：If AD sampling modules detected current parking of automobile more than or equal to 30 minutes, and acceleration of gravity is detected
To each axle amplitude be less than either shallow sleep threshold when, then the master controller of automobile powers off and enters deep power down mode and also includes
Once step：
Deep-sleep threshold value is calibrated, deep-sleep threshold value is raised 10%.Wherein, deep-sleep threshold value is automobile
0.3 times of acceleration of gravity amplitude during normally travel state.That is, instantly one-time detection vehicle condition when, automobile master control
0.27 times of acceleration of gravity amplitude when deep-sleep adjusting thresholds are automobile normal running state by device processed.If after adjustment,
Testing result is still identical with before adjustment, then it is assumed that, the error of AD sampling modules testing result.
Further, to avoid car-mounted terminal error starting, it is ensured that car-mounted terminal can be called out in automotive ignition or driving
Wake up and work, in the present embodiment, car-mounted terminal dormancy and the method waken up are further comprising the steps of：
Gravity accelerometer monitors the amplitude of automobile gravity acceleration each axle and exports corresponding amplitude extremely in real time
Automobile master controller；
If the amplitude of each axle of acceleration of gravity is more than deep-sleep threshold value, the work of AD sampling modules is waken up, and work as AD
When sampling module detects ignition signal or train signal, then electricity and start work on the master controller of automobile；
If the amplitude of each axle of acceleration of gravity is more than deep-sleep threshold value, the work of AD sampling modules is waken up, and AD is adopted
When egf block does not detect ignition signal or train signal, then AD sampling modules continuous firing and enter either shallow park mode.
In the present embodiment, the gravity accelerometer moment monitors the acceleration of gravity of automobile.If the amplitude of acceleration of gravity is more than
Deep-sleep threshold value, then further confirmed by AD sampling modules to vehicle condition.If AD sampling modules detect automobile point
Fiery signal or running, then trigger wake-up signal so that electricity and starts work on automobile master controller.If AD sampling modules
Automobile ignition signal or running are not detected, then into either shallow park mode, until AD sampling modules are detected a little
Fiery signal or running just wake up, so as to avoid automobile master controller error starting and expend excessive electric energy.
Further, to improve the degree of accuracy of car-mounted terminal dormancy and the method waken up in use, if AD samples
When module and gravity accelerometer are detected simultaneously by automobile and are in dead ship condition and continue to exceed 100 times, calibration deep-sleep
Threshold value, 10% is lowered by deep-sleep threshold value.I.e. by deep-sleep threshold value by automobile normal running state when acceleration of gravity width
0.3 times of value is adjusted to 0.27 times.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of car-mounted terminal dormancy and the method waken up, it is characterised in that comprise the following steps：
AD sampling modules detect the current state of automobile in real time；
The amplitude of each axle of gravity accelerometer acquisition automobile gravity acceleration simultaneously exports corresponding amplitude to automobile master control
Device processed；
If AD sampling modules detect automobile and are in flame-out or dead ship condition, and the amplitude of acceleration of gravity each axle continues 5
Minute is less than deep-sleep threshold value, then the master controller of automobile powers off and enters deep power down mode, until automotive ignition or row
Car and wake up；Wherein, 0.3 times of acceleration of gravity amplitude when the deep-sleep threshold value is automobile normal running；
Wherein, the step：If AD sampling modules detect automobile and are in flame-out or dead ship condition, and acceleration of gravity each
The amplitude of axle continues to be less than deep-sleep threshold value in 5 minutes, then the master controller of automobile powers off and enters deep power down mode, until
Automotive ignition or driving and wake up and comprise the following steps：
If AD sampling modules detect automobile and are currently at flameout state or dead ship condition, and the amplitude of acceleration of gravity each axle
When continuing 5 minutes less than deep-sleep threshold value, then the master controller of automobile powers off and enters deep power down mode；
Persistently it is more than or equal to 30 minutes if AD sampling modules detect current parking of automobile, and gravity accelerometer is detected
To each axle amplitude be more than or equal to either shallow sleep threshold when, then AD sampling modules continuous firing and enter either shallow dormancy mould
Formula；Wherein, 0.5 times of acceleration of gravity amplitude when the either shallow sleep threshold is automobile normal running state；
Persistently it is more than or equal to 30 minutes if AD sampling modules detect current parking of automobile, and gravity accelerometer is detected
To each axle amplitude be less than the either shallow sleep threshold when, then the master controller of automobile powers off and enters deep power down mode.
2. car-mounted terminal dormancy as claimed in claim 1 and the method waken up, it is characterised in that the step：If AD samples
Module detects current parking of automobile and is persistently more than or equal to 30 minutes, and gravity accelerometer detects shaking for each axle
When width is more than or equal to either shallow sleep threshold, then AD sampling modules continuous firing and enters either shallow park mode and also include following step
Suddenly：
If gravity accelerometer detects that the amplitude of each axle is more than or equal to traveling threshold value, school is carried out to traveling threshold value
Standard, by traveling threshold value up-regulation 10%；Wherein, acceleration of gravity amplitude when the traveling threshold value is automobile normal running state
0.8 times.
3. car-mounted terminal dormancy as claimed in claim 1 and the method waken up, it is characterised in that the step：If AD samples
Module detects current parking of automobile and is persistently more than or equal to 30 minutes, and gravity accelerometer detects shaking for each axle
When width is less than the either shallow sleep threshold, then the master controller of automobile, which powers off and enters deep power down mode, also includes following step
Suddenly：
Deep-sleep threshold value is calibrated, deep-sleep threshold value is raised 10%.
4. car-mounted terminal dormancy as described in any one of claims 1 to 3 and the method waken up, it is characterised in that also including with
Lower step：
Gravity accelerometer monitors the amplitude of automobile gravity acceleration each axle and exports corresponding amplitude in real time；
If the amplitude of each axle of acceleration of gravity is more than deep-sleep threshold value, the work of AD sampling modules is waken up, and when AD samplings
Electricity and start work when module detects ignition signal or train signal, on the master controller of automobile；
If the amplitude of each axle of acceleration of gravity is more than deep-sleep threshold value, wakes up AD sampling modules and work, and AD sampling modules
When not detecting ignition signal or train signal, then AD sampling modules continuous firing and enter either shallow park mode.
5. method of the car-mounted terminal dormancy with waking up as described in any one of claims 1 to 3, it is characterised in that the step：
AD sampling modules detect that the current state of automobile is specific as follows in real time：
AD sampling modules obtain the magnitude of voltage of automobile storage battery in real time；
If the magnitude of voltage of automobile storage battery declines and maintains a stable magnitude of voltage, automobile is in flameout state；
If the magnitude of voltage of automobile storage battery maintains a stable magnitude of voltage always, automobile is in dead ship condition；
If recovering after the magnitude of voltage rapid drawdown of automobile storage battery, automobile is in fired state.
6. car-mounted terminal dormancy as claimed in claim 1 and the method waken up, it is characterised in that if AD sampling modules and gravity
Acceleration transducer be detected simultaneously by automobile in dead ship condition continue to exceed 100 times when, calibrate deep-sleep threshold value, by depth
Sleep threshold lowers 10%.
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| CN106184070B (en) * | 2016-07-13 | 2018-06-01 | 安徽江淮汽车集团股份有限公司 | A kind of control method for vehicle and system |
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| CN106445079A (en) * | 2016-10-26 | 2017-02-22 | 深圳市赛格导航科技股份有限公司 | Operation control method and device for vehicle-mounted positioning equipment |
| CN107577331B (en) * | 2017-07-17 | 2020-09-04 | 深圳市盛路物联通讯技术有限公司 | Equipment control method and related product |
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| CN113570902B (en) * | 2020-04-28 | 2023-04-07 | 比亚迪股份有限公司 | Vehicle-to-vehicle communication method based on obstacle detection triggering, vehicle and communication equipment |
| CN114390465A (en) * | 2020-10-19 | 2022-04-22 | 中移物联网有限公司 | Vehicle-mounted positioning terminal control method and device and electronic equipment |
| CN113978398A (en) * | 2021-10-29 | 2022-01-28 | 北京乐驾科技有限公司 | System and method for detecting automobile ignition moment, electronic equipment and storage medium |
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| CN103235721A (en) * | 2013-04-02 | 2013-08-07 | 深圳市元征科技股份有限公司 | Sleep/wake-up device and method based on acceleration sensor for vehicle-mounted electronic equipment |
| CN104035395A (en) * | 2014-03-12 | 2014-09-10 | 武汉英泰斯特电子技术有限公司 | Low power consumption vehicle-mounted terminal and low power consumption achieving method of vehicle-mounted terminal |
| CN104615037A (en) * | 2014-12-22 | 2015-05-13 | 厦门雅迅网络股份有限公司 | CAN based vehicle-mounted equipment reminding device and method |
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