WO2018121566A1 - 一种电源管理装置、车载移动终端和节省其功耗的方法 - Google Patents
一种电源管理装置、车载移动终端和节省其功耗的方法 Download PDFInfo
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- WO2018121566A1 WO2018121566A1 PCT/CN2017/118865 CN2017118865W WO2018121566A1 WO 2018121566 A1 WO2018121566 A1 WO 2018121566A1 CN 2017118865 W CN2017118865 W CN 2017118865W WO 2018121566 A1 WO2018121566 A1 WO 2018121566A1
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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
- B60R16/03—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 supply of electrical power to vehicle subsystems or for
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Definitions
- the present invention relates to the field of automobile technology, and in particular, to a power management device for a vehicle-mounted mobile terminal, a vehicle-mounted mobile terminal, and a method for saving power consumption of the vehicle-mounted mobile terminal.
- the devices in the car or the in-vehicle mobile terminal require the battery inside the car to supply power, for example, the car's ACC ignition device, the vehicle driving recorder, and the like.
- the vehicle In the prior art driving recorder, in order to realize the monitoring of the surrounding environment when the vehicle stops driving, the vehicle is kept open after the vehicle is turned off, which requires the battery inside the vehicle to continuously supply power to the driving recorder. If the car is not used for a short period of time, there is no problem, but if the car is not used for a long time (such as a user traveling for a month, park the car in the garage for up to a month), and the driving recorder keeps it during this time. When it is turned on, it will gradually consume the power in the battery, which will cause the battery to be exhausted, which will cause the car to fail to start normally and affect the normal use of the car.
- the present invention has been made in order to provide a power management apparatus, an in-vehicle mobile terminal, and a method of saving power consumption of an in-vehicle mobile terminal for an in-vehicle mobile terminal that overcome the above problems or at least partially solve the above problems.
- a power management apparatus for an in-vehicle mobile terminal includes a micro control unit MCU; the MCU includes: a vehicle flameout/ignition detecting unit, a first power management unit, a second power management unit and a timer whose timing is a preset time;
- the vehicle flameout/ignition detecting unit is adapted to send a first control signal to the first power management unit and the second power management unit when detecting the vehicle stalling;
- the first power management unit controls the first type of function module of the in-vehicle mobile terminal to be powered off after receiving the first control signal;
- the second power management unit starts a timer after receiving the first control signal, and controls the second type of function module of the vehicle-mounted mobile terminal to be powered off when the timer reaches the timing time, so as to prevent the vehicle-mounted mobile terminal from exhausting the power of the vehicle battery.
- a method of saving power consumption of an in-vehicle mobile terminal comprising:
- the MMU controls the first type of function module of the in-vehicle mobile terminal to be powered off when detecting that the car is turned off;
- the MCU controls the second type of function module of the vehicle-mounted mobile terminal to be powered off, so as to prevent the vehicle-mounted mobile terminal from exhausting the power of the vehicle battery.
- the present invention provides a computer program comprising computer readable code that, when executed on a computing device, causes the computing device to perform the method of saving power consumption of the in-vehicle mobile terminal as described above.
- the invention also provides a computer readable medium storing a computer program as described above.
- a power control device sets a micro control unit CPU, and when detecting that the car is turned off, sends a first control signal to the first power management unit and the second power management unit in the micro control unit CPU; After receiving the first control signal, the first power management unit controls the first type of function module of the in-vehicle mobile terminal to be powered off, and the second power management unit starts the timer after receiving the first control signal, and the timer reaches the timing time.
- the second type of function module of the vehicle mobile terminal is controlled to be powered off, the vehicle mobile terminal is prevented from exhausting the power of the vehicle battery.
- the invention can automatically control the power-off of the function modules of the vehicle-mounted mobile terminal in the case that the automobile is not used for a long time, prevent the waste of the power of the automobile battery, and exhaust the power, so as to ensure that the automobile can be used normally.
- FIG. 1 shows a schematic diagram of a power management apparatus for a vehicle-mounted mobile terminal according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of a power management apparatus for a vehicle-mounted mobile terminal according to another embodiment of the present invention.
- FIG. 3 is a schematic diagram of a vehicle-mounted mobile terminal according to another embodiment of the present invention.
- FIG. 4 illustrates a flow chart of a method of saving power consumption of an in-vehicle mobile terminal in accordance with one embodiment of the present invention
- Figure 5 shows schematically a block diagram of a computing device for performing the method according to the invention
- Fig. 6 schematically shows a storage unit for holding or carrying program code implementing the method according to the invention.
- the power management apparatus 100 for an in-vehicle mobile terminal includes: a micro control unit MCU 110; the MCU 110 includes: a vehicle flameout/ignition detecting unit 111, a first power management unit 112, a second power management unit 113, and The timer time is the timer 114 of the preset time.
- the vehicle flameout/ignition detecting unit 111 is adapted to transmit a first control signal to the first power management unit and the second power management unit when the vehicle is turned off.
- the automobile flameout/ignition detecting unit 111 monitors the ACC ignition switch of the automobile in real time, and when it detects that the vehicle is turned off, sends the first control signal of the automobile to the first power management unit 112 and the second power management unit 113.
- the first power management unit 112 controls the first type of function module of the in-vehicle mobile terminal to be powered off after receiving the first control signal.
- the car mobile terminal may only use some functions in the car mobile terminal, that is, the necessary functions.
- the driving recorder is turned on after the car is turned off to monitor the surrounding environment of the car in the case of non-use, in order to prevent the occurrence of damage or deliberate damage, resulting in economic loss of the owner, for example, by other vehicles. The scraping or being maliciously damaged.
- the recording function of the driving recorder is utilized, and other functions, such as a screen display, a microphone, and the like, are not required, and in this case, the driving recorder is still turned on.
- the necessary function modules will cause a waste of car battery power.
- the first type of function module of the in-vehicle mobile terminal is controlled to be powered off.
- the first type of function module here may be a function module that is not required to be turned on in the state in which the vehicle mobile terminal is turned off.
- the second power management unit 113 starts the timer 114 after receiving the first control signal, and controls the second type of function module of the vehicle-mounted mobile terminal to be powered off when the timer reaches the timing time, so as to prevent the vehicle-mounted mobile terminal from exhausting the vehicle battery. Electricity.
- the car is in a state of long-term flameout (for example, if the user travels for one month and parks the car in the garage for up to one month), if the car mobile terminal is always on, the battery of the car will be exhausted. Therefore, after a period of time, the car is still in an extinguished state, and the second type of function module of the in-vehicle mobile terminal needs to be powered off to prevent the in-vehicle mobile terminal from exhausting the amount of the car battery. After the second function module is powered off, the on-board mobile terminal may be completely turned off, or the function of retaining part of the power consumption may be reserved.
- a timer time is stored in advance in the timer 114.
- the timing time here can also be set as needed, for example, 18h.
- the first control signal is sent for 18h, the car is still in a flameout state, then the second type of function module of the vehicle mobile terminal is directly controlled to be powered off to prevent the vehicle from being turned off.
- the mobile terminal runs out of battery power.
- the types of the first function module and the second function module are not specifically limited, and may be set as needed.
- the microphone of the driving recorder belongs to the second functional module and needs to be powered off at the end; when the car is turned off, only the driving recorder is needed to obtain the surrounding environment.
- the video image of the driving recorder, then the microphone of the driving recorder belongs to the first function module, and needs to be powered off first.
- the power consumption of the MCU in the power management apparatus of the present invention is small, which is much smaller than the power consumption of the in-vehicle mobile terminal. For example, staying within 5 mA will not exhaust the car battery even if it is not used for a month.
- the invention can automatically control the power-off of the function modules of the vehicle-mounted mobile terminal in the case that the automobile is not used for a long time, prevent the waste of the power of the automobile battery, and exhaust the power, so as to ensure that the automobile can be used normally.
- the first type of functional module of the in-vehicle mobile terminal comprises one or more of the following: a screen; a speaker; a microphone.
- the second type of functional module of the in-vehicle mobile terminal comprises: a CPU. Powering off the CPU means that the car mobile terminal is completely shut down, no longer consuming the battery power of the car, and there is no shortage of car battery power.
- the first functional module and the second functional module in the above embodiments are only one specific embodiment of the present invention.
- the types specifically included in the first function module and the second function module are not specifically limited herein, and may be set according to requirements.
- the vehicle flameout/ignition detecting unit 111 is further adapted to transmit a second control signal to the first power management unit and the second power management unit upon detecting the ignition of the vehicle.
- the first power management unit 112 is adapted to resume power supply of the first type of function module of the in-vehicle mobile terminal after receiving the second control signal.
- the second power management unit 113 restores the power supply of the second type of functional module of the in-vehicle mobile terminal after receiving the second control signal.
- the power management device 200 for an in-vehicle mobile terminal includes a micro control unit MCU 210.
- the micro control unit MCU 210 includes a car ignition/ignition detecting unit 211, a first power management unit 212, and a second power management unit 213. And a timer 214, a time completion unit 215, and a timer 216 whose timing time is a preset time.
- the power management unit 112, the second power management unit 113, and the timer 114 whose timing is a preset time have the same functions, and the same portions will not be described herein.
- the vehicle flameout/ignition detecting unit 211 is further adapted to transmit a first control signal to the time completion unit when detecting the vehicle stalling; and further adapted to send the second to the time completion unit when the vehicle ignition is detected control signal.
- the time completion unit 215 is adapted to record the time of the flameout time when the first control signal is received, and start the timer 216 to start counting from 0; and to adapt to the time of the flameout time when the second control signal is received
- the time of the timer 216 is calculated as the time of the ignition timing of the car, and the time of the ignition timing of the car is output to the system time unit of the in-vehicle mobile terminal.
- the time display in the vehicle mobile terminal is often to obtain the network time in real time through the wireless signal, which requires the car to be driven in the signaled area. If the car enters the underground garage and is parked in the underground garage, then when the car is turned off, when it is turned on again, because the wireless signal in the underground garage is not good or there is no signal, the car mobile terminal will not be able to get the correct system time, maybe Only the factory time of the mobile terminal is displayed, for example, the driving recorder. Then the video image captured by the driving recorder without time calibration cannot be used as evidence in the accident processing.
- start timing when the car is turned off in case the time is lost when the car is ignited again.
- the time of the time is added to the time when the car is turned off, the time completion operation is performed, and the time after completion is output to the system time unit of the vehicle mobile terminal, and the vehicle mobile terminal can pass the MCU.
- the system time unit gets the correct time. For example, the time when the flameout is 9:00 and the time of the timer is 4 hours, then the ignition time of the car is 13:00.
- the exact time can be obtained through the wireless signal, and then the vehicle mobile terminal will take the time information obtained by GPS or the network as the standard.
- the present invention can also enable the in-vehicle mobile terminal to acquire the correct system time, ensure the availability of information captured by the in-vehicle mobile terminal, and enhance the user experience, in the case that the vehicle cannot obtain the network time without the wireless signal.
- the in-vehicle mobile terminal needs to perform the method shown in FIG. 1 to obtain the system time, which should be the time information that cannot be obtained through GPS or the network. Therefore, when the system time unit of the in-vehicle mobile terminal cannot obtain the time information through the GPS or the network, the time output by the time completion unit 215 is taken as the system time, and when the time information can be acquired through the GPS or the network, the MCU is not needed. The time of the output, the time information obtained is taken as the system time.
- the time completion unit 215 is adapted to accumulate the time of the timer at the time of the flameout time to obtain the time of the ignition timing of the car. For example, the time for the flameout is 14:00 and the time for the timer is 5 hours, then the ignition time of the car is 19:00.
- FIG. 3 shows a schematic diagram of an in-vehicle mobile terminal according to another embodiment of the present invention.
- the in-vehicle mobile terminal 300 includes a power management device 310 as shown in FIG. 1 or 2.
- the in-vehicle mobile terminal is a driving recorder or a smart rearview mirror.
- FIG. 4 shows a flow chart of a method of saving power consumption of an in-vehicle mobile terminal in accordance with one embodiment of the present invention. As shown in FIG. 4, the method includes:
- Step S410 adding a micro control unit MCU to the in-vehicle mobile terminal.
- step S420 the MUC controls the first type of function module of the in-vehicle mobile terminal to be powered off when detecting that the car is turned off. And, after the preset time of the vehicle is turned off, the MCU controls the second type of function module of the vehicle mobile terminal to be powered off, so as to prevent the vehicle-mounted mobile terminal from exhausting the power of the vehicle battery.
- the car mobile terminal may only use some functions in the car mobile terminal, that is, the necessary functions.
- the driving recorder is turned on after the car is turned off to monitor the surrounding environment of the car in the case of non-use, in order to prevent the occurrence of damage or deliberate damage, resulting in economic loss of the owner, for example, by other vehicles. The scraping or being maliciously damaged.
- the recording function of the driving recorder is utilized, and other functions, such as a screen display, a microphone, and the like, are not required, and in this case, the driving recorder is still turned on.
- the necessary function modules will cause a waste of car battery power.
- the first type of function module of the in-vehicle mobile terminal is controlled to be powered off.
- the first type of functional module herein may be a non-essential function module of the vehicle-mounted mobile terminal in a state in which the vehicle is turned off.
- the car is in a state of long-term flameout (for example, if the user travels for one month and parks the car in the garage for up to one month), if the car mobile terminal is always on, the battery of the car will be exhausted. Therefore, after a period of time, the car is still in an extinguished state, and the second type of function module of the in-vehicle mobile terminal needs to be powered off to prevent the in-vehicle mobile terminal from exhausting the amount of the car battery. After the second function module is powered off, the on-board mobile terminal may be completely turned off, or the function of retaining part of the power consumption may be reserved.
- a timer time is stored in advance in the timer 114.
- the timing time here can also be set as needed, for example, 18h.
- the first control signal is sent for 18h, the car is still in a flameout state, then the second type of function module of the vehicle mobile terminal is directly controlled to be powered off to prevent the vehicle from being turned off.
- the mobile terminal runs out of battery power.
- the types of the first function module and the second function module are not specifically limited, and may be set as needed.
- the microphone of the driving recorder belongs to the second functional module and needs to be powered off at the end; when the car is turned off, only the driving recorder is needed to obtain the surrounding environment.
- the video image of the driving recorder, then the microphone of the driving recorder belongs to the first function module, and needs to be powered off first.
- the power consumption of the MCU in the power management apparatus of the present invention is small, which is much smaller than the power consumption of the in-vehicle mobile terminal. For example, staying within 5 mA will prevent the car from running out of battery power even if it is not used for a month.
- the invention can automatically control the power-off of the function modules of the vehicle-mounted mobile terminal in the case that the automobile is not used for a long time, prevent the waste of the power of the automobile battery, and exhaust the power, so as to ensure that the automobile can be used normally.
- the first type of functional module of the in-vehicle mobile terminal comprises one or more of the following: a screen; a speaker; a microphone.
- the second type of functional module of the in-vehicle mobile terminal comprises: a CPU. Powering off the CPU means that the car mobile terminal is completely shut down, no longer consuming the battery power of the car, and there is no shortage of car battery power.
- the first functional module and the second functional module in the above embodiments are only one specific embodiment of the present invention.
- the types specifically included in the first function module and the second function module are not specifically limited herein, and may be set according to requirements.
- the method shown in FIG. 4 further includes: the MCU recovering power supply of each functional module of the in-vehicle mobile terminal when detecting the ignition of the automobile.
- the in-vehicle mobile terminal is a driving recorder or a smart rearview mirror.
- the method shown in FIG. 4 further includes:
- the MUC When the MUC detects that the car is off, it records the time of the flameout and starts the timer from 0.
- the time display in the vehicle mobile terminal is often to obtain the network time in real time through the wireless signal, which requires the car to be driven in the signaled area. If the car enters the underground garage and is parked in the underground garage, then when the car is turned off, when it is turned on again, because the wireless signal in the underground garage is not good or there is no signal, the car mobile terminal will not be able to get the correct system time, maybe Only the factory time of the mobile terminal is displayed, for example, the driving recorder. Then the video image captured by the driving recorder without time calibration cannot be used as evidence in the accident processing.
- the timing is started when the car is turned off, in case the time is lost when the car is ignited again.
- the MCU calculates the time of the ignition timing of the car according to the time of the flameout time and the time of counting the timer, and outputs the time of the ignition timing of the car to the system time unit of the vehicle mobile terminal.
- the time of the time is added to the time when the car is turned off, the time completion operation is performed, and the time after completion is output to the system time unit of the vehicle mobile terminal, and the vehicle mobile terminal can pass the system of the MCU.
- the time unit gets the right time. For example, the time for the flameout is 9:00, and the time for the timer is 4 hours, then the ignition time of the car is 13:00.
- the exact time can be obtained through the wireless signal, and the vehicle mobile terminal will take the time information acquired by GPS or the network as the standard.
- the present invention can also enable the in-vehicle mobile terminal to acquire the correct system time, ensure the availability of information captured by the in-vehicle mobile terminal, and enhance the user experience, in the case that the vehicle cannot obtain the network time without the wireless signal.
- the in-vehicle mobile terminal needs to perform the above method to obtain the system time, which should be the time information that cannot be obtained through GPS or the network. Therefore, when the system time unit of the in-vehicle mobile terminal cannot obtain the time information through the GPS or the network, the time output by the MCU is taken as the system time, and when the time information can be acquired through the GPS or the network, the acquired time information is taken as the system time. .
- the time of the ignition timing of the automobile is calculated according to the time of the flameout time and the time of counting the timer, and the time of counting the timer is accumulated at the time of the flameout time to obtain the time of the ignition timing of the automobile.
- the time for the flameout is 14:00 and the time for the timer is 5 hours, then the ignition time of the car is 19:00.
- a micro control unit CPU is set in the power management device, and when the car is turned off, the first power management unit and the second power management unit in the micro control unit CPU are sent.
- a first control signal the first power management unit controls the first type of function module of the in-vehicle mobile terminal to be powered off after receiving the first control signal, and the second power management unit starts the timer after receiving the first control signal, When the timer reaches the timing time, the second type of function module of the vehicle-mounted mobile terminal is controlled to be powered off, so as to prevent the vehicle-mounted mobile terminal from exhausting the power of the vehicle battery.
- the invention can automatically control the power-off of the function modules of the vehicle-mounted mobile terminal in the case that the automobile is not used for a long time, prevent the waste of the power of the automobile battery, and exhaust the power, so as to ensure that the automobile can be used normally.
- modules in the devices of the embodiments can be adaptively changed and placed in one or more devices different from the embodiment.
- the modules or units or components of the embodiments may be combined into one module or unit or component, and further they may be divided into a plurality of sub-modules or sub-units or sub-components.
- any combination of the features disclosed in the specification, including the accompanying claims, the abstract and the drawings, and any methods so disclosed, or All processes or units of the device are combined.
- Each feature disclosed in this specification (including the accompanying claims, the abstract and the drawings) may be replaced by alternative features that provide the same, equivalent or similar purpose.
- the various component embodiments of the present invention may be implemented in hardware, or in a software module running on one or more processors, or in a combination thereof. It will be understood by those skilled in the art that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all of the power management device and the in-vehicle mobile terminal for the in-vehicle mobile terminal according to an embodiment of the present invention. Some or all of the features of the part.
- the invention can also be implemented as a device or device program (e.g., a computer program and a computer program product) for performing some or all of the methods described herein. Such a program implementing the invention may be stored on a computer readable medium or may be in the form of one or more signals. Such signals may be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.
- Figure 5 shows a block diagram of a computing device for performing the method in accordance with the present invention.
- the computing device conventionally includes a processor 510 and a computer program product or computer readable medium in the form of a memory 520.
- the memory 520 may be an electronic memory such as a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), an EPROM, a hard disk, or a ROM.
- Memory 520 has a storage space 530 that stores program code 531 for performing any of the method steps described above.
- the storage space 530 for storing program code may separately store respective program codes 531 for implementing various steps in the above method.
- the program code can be read from or written to one or more computer program products.
- Such computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks.
- Such a computer program product is typically a portable or fixed storage unit such as that shown in FIG.
- the storage unit may have storage segments, storage spaces, and the like that are similarly arranged to memory 520 in the computing device of FIG.
- the program code can be compressed in an appropriate form.
- the storage unit stores computer readable program code 531' for performing the steps of the method according to the present invention, ie program code readable by a processor such as 510, when the program code is run by the computing device, resulting in The computing device performs the various steps in the methods described above.
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Abstract
一种用于车载移动终端的电源管理装置、车载移动终端和节省车载移动终端功耗的方法。该装置(100,200)包括一个微控制单元MCU(110,210);MCU(110,210)包括汽车熄火/点火检测单元(111,211)、第一电源管理单元(112,212)、第二电源管理单元(113,213)以及定时时间为预设时间的定时器(114,214);汽车熄火/点火检测单元(111,211),适于在检测到汽车熄火时,向第一电源管理单元(112,212)和第二电源管理单元(113,213)发送第一控制信号;第一电源管理单元(112,212),在收到第一控制信号后控制车载移动终端的第一类功能模块断电;第二电源管理单元(113,213),在收到第一控制信号后启动定时器(114,214),到达定时时间时控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量,保证汽车可以正常使用。
Description
本发明涉及汽车技术领域,具体涉及一种用于车载移动终端的电源管理装置、车载移动终端和节省车载移动终端功耗的方法。
在现在社会生活中,汽车中一部分的装置或车载移动终端需要汽车内部的电瓶提供电量,例如,汽车的ACC点火装置、车载行车记录仪等。现有技术中的行车记录仪为了实现在汽车停止行驶时的周围环境的监控,在汽车熄火后也保持开启的状态,这就需要汽车内部的电瓶给行车记录仪持续供电。如果汽车短时间不使用还没有任何问题,但是如果汽车长时间不使用(如用户出差一个月,将汽车停放在车库中长达一个月之久),而行车记录仪在这段时间内一直保持开启状态的话,会逐渐消耗电瓶中的电量,这样就存在将电瓶中的电量消耗殆尽的危险,进而导致汽车不能正常启动,影响汽车的正常使用。
发明内容
鉴于上述问题,提出了本发明以便提供一种克服上述问题或者至少部分地解决上述问题的一种用于车载移动终端的电源管理装置、车载移动终端和节省车载移动终端功耗的方法。
依据本发明的一个方面,提供了一种用于车载移动终端的电源管理装置,其中,该装置包括一个微控制单元MCU;所述MCU包括:汽车熄火/点火检测单元、第一电源管理单元、第二电源管理单元以及定时时间为预设时间的定时器;
汽车熄火/点火检测单元,适于在检测到汽车熄火时,向第一电源管理单元和第二电源管理单元发送第一控制信号;
第一电源管理单元,在收到第一控制信号后控制车载移动终端的第一类功能模块断电;
第二电源管理单元,在收到第一控制信号后启动定时器,在定时器到达定时时间时控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。
根据本发明的又一方面,提供了一种节省车载移动终端的功耗的方法,其中,该 方法包括:
在车载移动终端中加入一个微控制单元MCU;
所述MUC在检测到汽车熄火时,控制车载移动终端的第一类功能模块断电;
以及,所述MCU在汽车熄火预设时间后,控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。
本发明提供了一种计算机程序,包括计算机可读代码,当所述计算机可读代码在计算设备上运行时,导致所述计算设备执行如上所述的节省车载移动终端的功耗的方法。
本发明还提供了一种计算机可读介质,其中存储了如上所述的计算机程序。
根据本发明的技术方案,在电源管理装置设定一个微控制单元CPU,在检测到汽车熄火时,向微控制单元CPU中的第一电源管理单元和第二电源管理单元发送第一控制信号;第一电源管理单元在收到第一控制信号后控制车载移动终端的第一类功能模块断电,而第二电源管理单元在收到第一控制信号后启动定时器,在定时器到达定时时间时控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。可见,本发明在汽车长期不使用的情况下,可以自动控制车载移动终端的功能模块的先后断电,防止汽车电瓶的电量的浪费,以及电量的耗尽,保证汽车可以正常使用。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,而可依照说明书的内容予以实施,并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂,以下特举本发明的具体实施方式。
通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并不认为是对本发明的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1示出了根据本发明一个实施例的一种用于车载移动终端的电源管理装置的示意图;
图2示出了根据本发明另一个实施例的一种用于车载移动终端的电源管理装置的示意图;
图3示出了根据本发明另一个实施例的一种车载移动终端的示意图;
图4示出了根据本发明一个实施例的节省车载移动终端的功耗的方法的流程图;
图5示意性地示出了用于执行根据本发明的方法的计算设备的框图;以及
图6示意性地示出了用于保持或者携带实现根据本发明的方法的程序代码的存储单元。
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
图1示出了根据本发明一个实施例的一种用于车载移动终端的电源管理装置的示意图。如图1所示,该用于车载移动终端的电源管理装置100包括:一个微控制单元MCU110;MCU110包括:汽车熄火/点火检测单元111、第一电源管理单元112、第二电源管理单元113以及定时时间为预设时间的定时器114。
汽车熄火/点火检测单元111,适于在检测到汽车熄火时,向第一电源管理单元和第二电源管理单元发送第一控制信号。
汽车熄火/点火检测单元111实时监测汽车的ACC点火开关,当检测到汽车熄火后,就会将汽车熄火的第一控制信号发送给第一电源管理单元112和第二电源管理单元113。
第一电源管理单元112,在收到第一控制信号后控制车载移动终端的第一类功能模块断电。
因为有些车载移动终端在汽车熄火后会继续保持开启的状态,进而消耗汽车电瓶的电量,但是在汽车熄火后开启车载移动终端可能只用到车载移动终端中的部分功能,也就是必要功能。例如,在汽车熄火后开启行车记录仪是为了监控汽车在不是用的情况下的汽车周围环境情况,以防出现的被懂损坏或者故意损坏后造成车主的经济损失,例如,被其他行驶的车辆的刮蹭或者被人恶意损坏等。这时,只利用到的行车记录仪的录像功能,而其他的功能,例如,屏幕显示、麦克等功能模块是不需要用到的,如果在这种情况下,还继续开启行车记录仪的非必要功能模块,就会造成汽车电瓶电量的浪费。
所以,在第一电源管理单元112收到第一控制信号后控制车载移动终端的第一类功能模块断电。这里的第一类功能模块可以是车载移动终端在汽车熄火的状态下 的非必须开启的功能模块。
第二电源管理单元113,在收到第一控制信号后启动定时器114,在定时器到达定时时间时控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。
汽车处于长时间熄火的状态(如用户出差一个月,将汽车停放在车库中长达一个月之久),如果车载移动终端一直处于开启的状态的话会将汽车的电瓶的电量耗完。所以,当经过一段时间后,汽车还处于熄灭的状态,需要将车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。这里的第二功能模块断电后可能是该车载移动终端全部关闭,也可能是保留部分功耗较小的功能。
定时器114中预先存储有定时时间。这里的定时时间也可以根据需要进行设定,例如18h,当第一控制信号发送18h后,汽车还处于熄火的状态,那么就直接控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。
需要说明的是,第一功能模块和第二功能模块的种类不做具体的限定,可以根据需要进行设定。例如,汽车熄火时,只需要通过行车记录仪监控周围环境音就行,那么行车记录仪的麦克风就属于第二功能模块,需要最后断电;当汽车熄火时,只需要通过行车记录仪获取周围环境的视屏影像,那么行车记录仪的麦克风就属于第一功能模块,需要最先断电。
还需要说明的是,本发明的电源管理装置中的MCU的功耗很小,远远小于车载移动终端的功耗。例如,保持在5mA之内,使得汽车即使一个月内不使用的话也不会将汽车电瓶电量耗尽。
可见,本发明在汽车长期不使用的情况下,可以自动控制车载移动终端的功能模块的先后断电,防止汽车电瓶的电量的浪费,以及电量的耗尽,保证汽车可以正常使用。
在本发明的一个实施例中,车载移动终端的第一类功能模块包括如下中的一种或多种:屏幕;喇叭;麦克风。
在本发明的一个实施例中,车载移动终端的第二类功能模块包括:CPU。将CPU断电后也就意味着车载移动终端彻底关闭,不再消耗汽车电瓶的电量,也就能不存在汽车电瓶电量耗尽的情况。
上述实施例中的第一功能模块和第二功能模块只是本发明的一个具体实施例。第一功能模块和第二功能模块具体包含的种类在这里不做具体的限定,可以根据需 求进行设定。
将那么当汽车再次打火时,就不需要再考虑汽车电瓶的点亮被车载移动终端耗尽的情况,需要汽车熄灭后断电的各功能模块重新供电。所以,在本发明的一个实施例中,汽车熄火/点火检测单元111,进一步适于在检测到汽车点火时,向第一电源管理单元和第二电源管理单元发送第二控制信号。
第一电源管理单元112,适于在收到第二控制信号后恢复车载移动终端的第一类功能模块的供电。
第二电源管理单元113,在收到第二控制信号后恢复车载移动终端的第二类功能模块的供电。
图2示出了根据本发明另一个实施例的一种用于车载移动终端的电源管理装置的示意图。如图2所示,用于车载移动终端的电源管理装置200包括一微控制单元MCU210,微控制单元MCU210包括:汽车熄火/点火检测单元211、第一电源管理单元212、第二电源管理单元213以及定时时间为预设时间的定时器214、时间补全单元215和计时器216。其中,汽车熄火/点火检测单元211、第一电源管理单元212、第二电源管理单元213以及定时时间为预设时间的定时器214与图1所示的汽车熄火/点火检测单元111、第一电源管理单元112、第二电源管理单元113以及定时时间为预设时间的定时器114具有相同的功能,相同的部分在此不再赘述。
汽车熄火/点火检测单元211,进一步适于在检测到汽车熄火时,还向时间补全单元发送第一控制信号;以及进一步适于在检测到汽车点火时,还向时间补全单元发送第二控制信号。
时间补全单元215,适于在接收到第一控制信号时,记录熄火时刻的时间,并启动计时器216从0开始计时;以及适于在接收到第二控制信号时,根据熄火时刻的时间和计时器216的计时时间计算出汽车点火时刻的时间,将汽车点火时刻的时间输出给车载移动终端的系统时间单元。
车载移动终端中的时间显示往往是通过无线信号实时获取网络时间,这就需要汽车一直行驶在有信号的区域中才可行。如果汽车进入地下车库并停泊在地下车库中,那么在汽车熄火后,再次开启的时候,因为地下车库中的无线信号不好或者没有信号,那么车载移动终端将无法获取到正确的系统时间,可能显示的只是车载移动终端的出厂时间,例如,行车记录仪,那么行车记录仪在没有时间标定下捕获的视屏图像就不能作为事故处理中的证据使用。
为了防止上述情况的出现,在汽车熄火的时候开始计时,以防当汽车再次点火 后,时间丢失。当汽车再次点火后,将计时的时间补入汽车熄火时的时间,进行时间补全的操作,并将补全后的时间输出给车载移动终端的系统时间单元,车载移动终端就可以通过MCU的系统时间单元获得一个正确的时间。例如,熄火时的时间是9:00,计时器的计时时间是4小时,那么汽车的点火时间就是13:00。
当汽车驶出没有信号的地下车库后就可以通过无线信号获得确切的时间,之后车载移动终端会以GPS或网络获取到的时间信息为准。
可见,本发明在汽车没有无线信号无法获取到网络时间的情况下,也可以使车载移动终端获取到正确的系统时间,保证车载移动终端捕获的信息的可用性,增强用户体验。
通常情况下,车载移动终端需要进行图1所示的方法获得系统时间是应为无法通过GPS或网络获取到时间信息。所以,车载移动终端的系统时间单元在无法通过GPS或网络获取到时间信息时,将时间补全单元215输出的时间作为系统时间,在能够通过GPS或网络获取到时间信息时,就不需要MCU输出的时间,将获取的时间信息作为系统时间。
在本发明的一个实施例中,时间补全单元215,适于在熄火时刻的时间上累加计时器的计时时间,得到汽车点火时刻的时间。例如,熄火的时间是14:00,计时器的计时时间是5小时,那么汽车的点火时间就是19:00。
图3示出了根据本发明另一个实施例的一种车载移动终端的示意图。如图3所示,该车载移动终端300包括:如图1或图2所示的电源管理装310置。
在本发明的一个实施例中,该车载移动终端为行车记录仪或智能后视镜。
图4示出了根据本发明一个实施例的节省车载移动终端的功耗的方法的流程图。如图4所示,该方法包括:
步骤S410,在车载移动终端中加入一个微控制单元MCU。
步骤S420,MUC在检测到汽车熄火时,控制车载移动终端的第一类功能模块断电。以及,MCU在汽车熄火预设时间后,控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。
因为有些车载移动终端在汽车熄火后会继续保持开启的状态,进而消耗汽车电瓶的电量,但是在汽车熄火后开启车载移动终端可能只用到车载移动终端中的部分功能,也就是必要功能。例如,在汽车熄火后开启行车记录仪是为了监控汽车在不是用的情况下的汽车周围环境情况,以防出现的被懂损坏或者故意损坏后造成车主的经济损失,例如,被其他行驶的车辆的刮蹭或者被人恶意损坏等。这时,只利用 到的行车记录仪的录像功能,而其他的功能,例如,屏幕显示、麦克等功能模块是不需要用到的,如果在这种情况下,还继续开启行车记录仪的非必要功能模块,就会造成汽车电瓶电量的浪费。
所以,在第一电源管理单元112收到第一控制信号后控制车载移动终端的第一类功能模块断电。这里的第一类功能模块可以是车载移动终端在汽车熄火的状态下的非必须开启的功能模块。
汽车处于长时间熄火的状态(如用户出差一个月,将汽车停放在车库中长达一个月之久),如果车载移动终端一直处于开启的状态的话会将汽车的电瓶的电量耗完。所以,当经过一段时间后,汽车还处于熄灭的状态,需要将车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。这里的第二功能模块断电后可能是该车载移动终端全部关闭,也可能是保留部分功耗较小的功能。
定时器114中预先存储有定时时间。这里的定时时间也可以根据需要进行设定,例如18h,当第一控制信号发送18h后,汽车还处于熄火的状态,那么就直接控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。
需要说明的是,第一功能模块和第二功能模块的种类不做具体的限定,可以根据需要进行设定。例如,汽车熄火时,只需要通过行车记录仪监控周围环境音就行,那么行车记录仪的麦克风就属于第二功能模块,需要最后断电;当汽车熄火时,只需要通过行车记录仪获取周围环境的视屏影像,那么行车记录仪的麦克风就属于第一功能模块,需要最先断电。
还需要说明的是,本发明的电源管理装置中的MCU的功耗很小,远远小于车载移动终端的功耗。例如,保持在5mA之内,使得汽车即使一个月内内不使用的话也不会将汽车电瓶电量耗尽。
可见,本发明在汽车长期不使用的情况下,可以自动控制车载移动终端的功能模块的先后断电,防止汽车电瓶的电量的浪费,以及电量的耗尽,保证汽车可以正常使用。
在本发明的一个实施例中,车载移动终端的第一类功能模块包括如下中的一种或多种:屏幕;喇叭;麦克风。
在本发明的一个实施例中,车载移动终端的第二类功能模块包括:CPU。将CPU断电后也就意味着车载移动终端彻底关闭,不再消耗汽车电瓶的电量,也就能不存在汽车电瓶电量耗尽的情况。
上述实施例中的第一功能模块和第二功能模块只是本发明的一个具体实施例。第一功能模块和第二功能模块具体包含的种类在这里不做具体的限定,可以根据需求进行设定。
将那么当汽车再次打火时,就不需要再考虑汽车电瓶的点亮被车载移动终端耗尽的情况,需要汽车熄灭后断电的各功能模块重新供电。所以,在本发明的一个实施例中,图4所示的方法进一步包括:MCU在检测到汽车点火时,恢复车载移动终端的各功能模块的供电。
在本发明的一个实施例中,车载移动终端为行车记录仪或智能后视镜。
在本发明的一个实施例中,图4所示的方法进一步包括:
MUC在检测到汽车熄火时,记录熄火时刻的时间,并启动计时器从0开始计时。
车载移动终端中的时间显示往往是通过无线信号实时获取网络时间,这就需要汽车一直行驶在有信号的区域中才可行。如果汽车进入地下车库并停泊在地下车库中,那么在汽车熄火后,再次开启的时候,因为地下车库中的无线信号不好或者没有信号,那么车载移动终端将无法获取到正确的系统时间,可能显示的只是车载移动终端的出厂时间,例如,行车记录仪,那么行车记录仪在没有时间标定下捕获的视屏图像就不能作为事故处理中的证据使用。
为了防止上述情况的出现,在汽车熄火的时候开始计时,以防当汽车再次点火后,时间丢失。
MCU在检测到汽车点火时,根据熄火时刻的时间和计时器的计时时间计算出汽车点火时刻的时间,将汽车点火时刻的时间输出给车载移动终端的系统时间单元。
当汽车再次点火后,将计时的时间补入汽车熄火的时间,进行时间补全的操作,并将补全后的时间输出给车载移动终端的系统时间单元,车载移动终端就可以通过MCU的系统时间单元获得一个正确的时间。例如,熄火的时间是9:00,计时器的计时时间是4小时,那么汽车的点火时间就是13:00。
当汽车驶出没有信号的地下车库后可以通过无线信号获得确切的时间后,车载移动终端会以GPS或网络获取到的时间信息为准。
可见,本发明在汽车没有无线信号无法获取到网络时间的情况下,也可以使车载移动终端获取到正确的系统时间,保证车载移动终端捕获的信息的可用性,增强用户体验。
通常情况下,车载移动终端需要进行上述方法获得系统时间是应为无法通过 GPS或网络获取到时间信息。所以,车载移动终端的系统时间单元在无法通过GPS或网络获取到时间信息时,将MCU输出的时间作为系统时间,在能够通过GPS或网络获取到时间信息时,将获取的时间信息作为系统时间。
在本发明的一个实施例中,根据熄火时刻的时间和计时器的计时时间计算出汽车点火时刻的时间,是在熄火时刻的时间上累加计时器的计时时间,得到汽车点火时刻的时间。例如,熄火的时间是14:00,计时器的计时时间是5小时,那么汽车的点火时间就是19:00。
综上所述,根据本发明的技术方案,在电源管理装置设定一个微控制单元CPU,在检测到汽车熄火时,向微控制单元CPU中的第一电源管理单元和第二电源管理单元发送第一控制信号;第一电源管理单元在收到第一控制信号后控制车载移动终端的第一类功能模块断电,而第二电源管理单元在收到第一控制信号后启动定时器,在定时器到达定时时间时控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。可见,本发明在汽车长期不使用的情况下,可以自动控制车载移动终端的功能模块的先后断电,防止汽车电瓶的电量的浪费,以及电量的耗尽,保证汽车可以正常使用。
需要说明的是:
在此提供的算法和显示不与任何特定计算机、虚拟装置或者其它设备固有相关。各种通用装置也可以与基于在此的示教一起使用。根据上面的描述,构造这类装置所要求的结构是显而易见的。此外,本发明也不针对任何特定编程语言。应当明白,可以利用各种编程语言实现在此描述的本发明的内容,并且上面对特定语言所做的描述是为了披露本发明的最佳实施方式。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着,结合实施例描述的特定特征、结构或者特性包括在本发明的至少一个实施例中。此外,请注意,这里“在一个实施例中”的词语例子不一定全指同一个实施例。
在此处所提供的说明书中,说明了大量具体细节。然而,能够理解,本发明的实施例可以在没有这些具体细节的情况下实践。在一些实例中,并未详细示出公知的方法、结构和技术,以便不模糊对本说明书的理解。
类似地,应当理解,为了精简本公开并帮助理解各个发明方面中的一个或多个,在上面对本发明的示例性实施例的描述中,本发明的各个特征有时被一起分组到单个实施例、图、或者对其的描述中。然而,并不应将该公开的方法解释成反映 如下意图:即所要求保护的本发明要求比在每个权利要求中所明确记载的特征更多的特征。更确切地说,如下面的权利要求书所反映的那样,发明方面在于少于前面公开的单个实施例的所有特征。因此,遵循具体实施方式的权利要求书由此明确地并入该具体实施方式,其中每个权利要求本身都作为本发明的单独实施例。
本领域那些技术人员可以理解,可以对实施例中的设备中的模块进行自适应性地改变并且把它们设置在与该实施例不同的一个或多个设备中。可以把实施例中的模块或单元或组件组合成一个模块或单元或组件,以及此外可以把它们分成多个子模块或子单元或子组件。除了这样的特征和/或过程或者单元中的至少一些是相互排斥之外,可以采用任何组合对本说明书(包括伴随的权利要求、摘要和附图)中公开的所有特征以及如此公开的任何方法或者设备的所有过程或单元进行组合。除非另外明确陈述,本说明书(包括伴随的权利要求、摘要和附图)中公开的每个特征可以由提供相同、等同或相似目的的替代特征来代替。
此外,本领域的技术人员能够理解,尽管在此所述的一些实施例包括其它实施例中所包括的某些特征而不是其它特征,但是不同实施例的特征的组合意味着处于本发明的范围之内并且形成不同的实施例。例如,在下面的权利要求书中,所要求保护的实施例的任意之一都可以以任意的组合方式来使用。
本发明的各个部件实施例可以以硬件实现,或者以在一个或者多个处理器上运行的软件模块实现,或者以它们的组合实现。本领域的技术人员应当理解,可以在实践中使用微处理器或者数字信号处理器(DSP)来实现根据本发明实施例的用于车载移动终端的电源管理装置和车载移动终端中的一些或者全部部件的一些或者全部功能。本发明还可以实现为用于执行这里所描述的方法的一部分或者全部的设备或者装置程序(例如,计算机程序和计算机程序产品)。这样的实现本发明的程序可以存储在计算机可读介质上,或者可以具有一个或者多个信号的形式。这样的信号可以从因特网网站上下载得到,或者在载体信号上提供,或者以任何其他形式提供。
例如,图5示出了用于执行根据本发明的方法的计算设备的框图。该计算设备传统上包括处理器510和以存储器520形式的计算机程序产品或者计算机可读介质。存储器520可以是诸如闪存、EEPROM(电可擦除可编程只读存储器)、EPROM、硬盘或者ROM之类的电子存储器。存储器520具有存储用于执行上述方法中的任何方法步骤的程序代码531的存储空间530。例如,用于存储程序代码的存储空间530可以分别存储用于实现上面的方法中的各种步骤的各个程序代码531。这些程序代码 可以从一个或者多个计算机程序产品中读出或者写入到这一个或者多个计算机程序产品中。这些计算机程序产品包括诸如硬盘,紧致盘(CD)、存储卡或者软盘之类的程序代码载体。这样的计算机程序产品通常为例如图6所示的便携式或者固定存储单元。该存储单元可以具有与图5的计算设备中的存储器520类似布置的存储段、存储空间等。程序代码可以以适当形式进行压缩。通常,存储单元存储有用于执行根据本发明的方法步骤的计算机可读程序代码531’,即可以由诸如510之类的处理器读取的程序代码,当这些程序代码由计算设备运行时,导致该计算设备执行上面所描述的方法中的各个步骤。
应该注意的是上述实施例对本发明进行说明而不是对本发明进行限制,并且本领域技术人员在不脱离所附权利要求的范围的情况下可设计出替换实施例。在权利要求中,不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本发明可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中,这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
此外,还应当注意,本说明书中使用的语言主要是为了可读性和教导的目的而选择的,而不是为了解释或者限定本发明的主题而选择的。因此,在不偏离所附权利要求书的范围和精神的情况下,对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。对于本发明的范围,对本发明所做的公开是说明性的,而非限制性的,本发明的范围由所附权利要求书限定。
Claims (17)
- 一种用于车载移动终端的电源管理装置,其中,该装置包括一个微控制单元MCU;所述MCU包括:汽车熄火/点火检测单元、第一电源管理单元、第二电源管理单元以及定时时间为预设时间的定时器;汽车熄火/点火检测单元,适于在检测到汽车熄火时,向第一电源管理单元和第二电源管理单元发送第一控制信号;第一电源管理单元,适于在收到第一控制信号后控制车载移动终端的第一类功能模块断电;第二电源管理单元,适于在收到第一控制信号后启动定时器,在定时器到达定时时间时控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。
- 如权利要求1所述的电源管理装置,其中,所述车载移动终端的第一类功能模块包括如下中的一种或多种:屏幕;喇叭;麦克风。
- 如权利要求1所述电源管理装置,其中,所述车载移动终端的第二类功能模块包括:CPU。
- 如权利要求1所述的电源管理装置,其中,汽车熄火/点火检测单元,进一步适于在检测到汽车点火时,向第一电源管理单元和第二电源管理单元发送第二控制信号;第一电源管理单元,适于在收到第二控制信号后恢复车载移动终端的第一类功能模块的供电;第二电源管理单元,适于在收到第二控制信号后恢复车载移动终端的第二类功能模块的供电。
- 如权利要求1所述的电源管理装置,其中,所述MCU还包括:时间补全单元和计时器;所述汽车熄火/点火检测单元,进一步适于在检测到汽车熄火时,还向时间补全单元发送第一控制信号;以及进一步适于在检测到汽车点火时,还向时间 补全单元发送第二控制信号;所述时间补全单元,适于在接收到第一控制信号时,记录熄火时刻的时间,并启动计时器从0开始计时;以及适于在接收到第二控制信号时,根据熄火时刻的时间和计时器的计时时间计算出汽车点火时刻的时间,将汽车点火时刻的时间输出给车载移动终端的系统时间单元;其中,车载移动终端的系统时间单元在无法通过GPS或网络获取到时间信息时,将时间补全单元输出的时间作为系统时间,在能够通过GPS或网络获取到时间信息时,将获取的时间信息作为系统时间。
- 如权利要求5所述的装置,其中,所述时间补全单元,适于在熄火时刻的时间上累加计时器的计时时间,得到汽车点火时刻的时间。
- 一种车载移动终端,其中,该车载移动终端包括如权利要求1-6中任一项所述的电源管理装置。
- 如权利要求7所述车载移动终端,其中,该车载移动终端为行车记录仪或智能后视镜。
- 一种节省车载移动终端的功耗的方法,其中,该方法包括:在车载移动终端中加入一个微控制单元MCU;所述MUC在检测到汽车熄火时,控制车载移动终端的第一类功能模块断电;以及,所述MCU在汽车熄火预设时间后,控制车载移动终端的第二类功能模块断电,以防止车载移动终端耗尽车载电瓶的电量。
- 如权利要求9所述的方法,其中,所述车载移动终端的第一类功能模块包括如下中的一种或多种:屏幕;喇叭;麦克风。
- 如权利要求9所述的方法,其中,所述车载移动终端的第二类功能模块包括:CPU。
- 如权利要求9所述的方法,其中,该方法进一步包括:所述MCU在检测到汽车点火时,恢复车载移动终端的各功能模块的供电。
- 如权利要求9所述的方法,其中,所述车载移动终端为行车记录仪或智能后视镜。
- 如权利要求9-13中任一项所述的方法,其中,该方法进一步包括:所述MUC在检测到汽车熄火时,记录熄火时刻的时间,并启动计时器从0开始计时;所述MCU在检测到汽车点火时,根据熄火时刻的时间和计时器的计时时间计算出汽车点火时刻的时间,将汽车点火时刻的时间输出给车载移动终端的系统时间单元;其中,所述车载移动终端的系统时间单元在无法通过GPS或网络获取到时间信息时,将MCU输出的时间作为系统时间,在能够通过GPS或网络获取到时间信息时,将获取的时间信息作为系统时间。
- 如权利要求14所述的方法,其中,根据熄火时刻的时间和计时器的计时时间计算出汽车点火时刻的时间,在熄火时刻的时间上累加计时器的计时时间,得到汽车点火时刻的时间。
- 一种计算机程序,包括计算机可读代码,当所述计算机可读代码在计算设备上运行时,导致所述计算设备执行根据权利要求9-15中的任一个所述的节省车载移动终端的功耗的方法。
- 一种计算机可读介质,其中存储了如权利要求16所述的计算机程序。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112918409A (zh) * | 2019-12-06 | 2021-06-08 | 厦门雅迅网络股份有限公司 | 一种电源管理系统及方法 |
| CN112918409B (zh) * | 2019-12-06 | 2023-09-29 | 厦门雅迅网络股份有限公司 | 一种电源管理系统 |
| CN113246886A (zh) * | 2021-04-28 | 2021-08-13 | 宁波吉利汽车研究开发有限公司 | 一种供电状态控制方法、装置及计算机存储介质 |
| CN115071608A (zh) * | 2022-07-13 | 2022-09-20 | 岚图汽车科技有限公司 | 一种soa架构下降低整车静态电流的控制方法及系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106671910B (zh) | 2019-05-24 |
| CN106671910A (zh) | 2017-05-17 |
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