WO2018121545A1 - 一种车载移动终端的时间补全方法、装置和车载移动终端 - Google Patents
一种车载移动终端的时间补全方法、装置和车载移动终端 Download PDFInfo
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- WO2018121545A1 WO2018121545A1 PCT/CN2017/118738 CN2017118738W WO2018121545A1 WO 2018121545 A1 WO2018121545 A1 WO 2018121545A1 CN 2017118738 W CN2017118738 W CN 2017118738W WO 2018121545 A1 WO2018121545 A1 WO 2018121545A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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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
Definitions
- the present invention relates to the field of vehicle technologies, and in particular, to a time completion method, device, and vehicle-mounted mobile terminal for a vehicle-mounted mobile terminal.
- the video recording during the running of the vehicle is often performed by the driving recorder.
- the time when the event occurred in the video is recorded as the basis for the evidence.
- the time of the driving recorder is usually obtained by the GPS or the network in the vehicle in real time.
- the real-time acquisition of the GPS signal or the network in the vehicle requires the support of the network signal.
- the driving recorder Unable to get the correct time, it usually shows the factory time, then there is no time calibration in the recorded video, which leads to the persuasiveness or unavailability of the video as evidence in the process of accident handling, reducing the user experience. .
- the present invention has been made in order to provide a time complementing method, apparatus and in-vehicle mobile terminal for a vehicle-mounted mobile terminal that overcomes the above problems or at least partially solves the above problems.
- a time completion method for an in-vehicle mobile terminal includes:
- the MCU When the MCU detects that the car is turned off, the MCU records the time of the flameout time, and starts the timer to start from 0;
- the MCU calculates the time of the ignition timing of the automobile 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 automobile to the system time unit of the vehicle mobile terminal.
- a time completion device for an in-vehicle mobile terminal, wherein the device includes: a system time unit and a micro control unit MCU; the MCU includes: a car flameout/ignition detection unit, time Completion unit and timer;
- a vehicle flameout/ignition detecting unit adapted to transmit a first control signal to the time completion unit when detecting a vehicle stall; and to transmit a second control signal to the time completion unit when the vehicle is detected to be ignited;
- the time completion unit is adapted to record the time of the flameout time when the first control signal is received, and start the timer to start from 0; and to adapt to the time of the flameout time when the second control signal is received
- the time of the timer is calculated with the time of the timer, and the time of the ignition timing of the car is output to the system time unit of the vehicle-mounted mobile terminal.
- an in-vehicle mobile terminal wherein the in-vehicle mobile terminal includes a time completion device as described above.
- a computer program comprising computer readable code, when said computer readable code is run on a computing device, causing said computing device to perform an in-vehicle mobile terminal as described above Time completion method.
- a computer readable medium storing a computer program as described above is provided.
- a micro control unit MCU is added to the vehicle-mounted mobile terminal; when detecting the vehicle stalling, the MCU records the time of the flameout time, and starts the timer to start from 0; when the MCU detects the ignition of the car Calculate the time of the car ignition time according to the time of the flameout time and the time of the timer, and output the time of the car ignition time to the system time unit of the vehicle mobile terminal, so that the vehicle mobile terminal can get a correct time to prevent Information captured by the in-vehicle mobile terminal due to incorrect time or no time is not available.
- 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.
- FIG. 1 is a flow chart showing a time completion method of a vehicle-mounted mobile terminal according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of a time completion device of a vehicle-mounted mobile terminal according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of a time completion device of a vehicle-mounted mobile terminal according to another embodiment of the present invention.
- FIG. 4 is a schematic diagram of a vehicle-mounted mobile terminal according to another 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.
- FIG. 1 is a flow chart showing a time completion method of a vehicle-mounted mobile terminal according to an embodiment of the present invention. The method includes:
- Step S110 adding a micro control unit MCU to the in-vehicle mobile terminal.
- step S120 when the MCU detects that the car is off, the MCU records the time of the flameout time, and starts the timer to start 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.
- Step S130 when detecting the ignition of the automobile, the MCU calculates the time of the ignition timing of the automobile 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 automobile to the system time unit of the vehicle mobile terminal, so that the automobile cannot Output when the network time is obtained.
- 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 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, in an embodiment of the present invention, when the system time unit acquires the ignition time of the car, the system time unit of the in-vehicle mobile terminal uses the time output by the MCU as the system when the car cannot obtain the time information through the GPS or the network. time. If the time information can be acquired through GPS or the network, the time output by the MCU is not required, and 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 the timer.
- the specific method is to accumulate the timing of the timer at the time of the flameout time to obtain the ignition timing of the automobile. time. 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.
- a car mobile terminal of a car In the use of a car mobile terminal of a car, it may be in an open state when the car is turned off, which causes the power consumption of the car battery to be lost. If the car does not ignite for a long time, the battery power is exhausted, affecting the car. Normal use. For example, in order to realize the monitoring of the surrounding environment when the car is stopped, the driving recorder is kept open after the car is turned off, which requires the battery inside the car 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.
- the method shown in FIG. 1 further includes:
- the MCU When the MCU detects that the car is turned off, the MCU also controls the first type of function module of the in-vehicle mobile terminal to be powered off. And, after the preset time of the vehicle 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 level of the vehicle.
- 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 functional module that controls the in-vehicle mobile terminal is powered off after the vehicle is turned 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. 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 time completion device of the present invention is small, which is far less than the power consumption of the vehicle-mounted 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 method 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 time completion device 200 of the in-vehicle mobile terminal includes a system time unit 220 and a micro control unit MCU 210.
- the MCU 210 includes a car flameout/ignition detecting unit 211, a time completion unit 212, and a timer 213.
- the vehicle flameout/ignition detecting unit 211 is adapted to transmit a first control signal to the time completion unit 212 when the vehicle is turned off; and to transmit the second control signal to the time completion unit 212 when the vehicle is detected to be ignited .
- the automobile flameout/ignition detecting unit 211 monitors the ACC ignition switch of the automobile in real time, and when detecting the vehicle stalling, sends the first control signal of the automobile to the time completion unit 212; when detecting the ignition of the automobile, the time is supplemented
- the full unit 212 transmits a second control signal for the ignition of the vehicle.
- the time completion unit 212 is adapted to record the time of the flameout time when the first control signal is received, and start the timer 213 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 213 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 220 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.
- the timing is started 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 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 system time unit 220 is adapted to use the time outputted by the time completion unit of the MCU as the system time when the time information cannot be acquired through the GPS or the network, and can be through the GPS or the network.
- the time output by the MCU is not required, and the acquired time information is taken as the system time.
- the time completion unit 212 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.
- a car mobile terminal of a car In the use of a car mobile terminal of a car, it may be in an open state when the car is turned off, which causes the power consumption of the car battery to be lost. If the car does not ignite for a long time, the battery power is exhausted, affecting the car. Normal use. For example, in order to realize the monitoring of the surrounding environment when the car is stopped, the driving recorder is kept open after the car is turned off, which requires the battery inside the car 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.
- FIG. 3 is a schematic diagram of a time completion device of a vehicle-mounted mobile terminal according to another embodiment of the present invention.
- the time completion device 300 of the in-vehicle mobile terminal includes a system time unit 320 and a micro control unit MCU 310.
- the MCU 310 includes a car flameout/ignition detecting unit 311, a time completion unit 312, a timer 313, and a A power management unit 314, a second power management unit 315, and a timer 316 whose timing time is a preset time.
- the system time unit 320, the car flameout/ignition detecting unit 311, the time completion unit 312, the timer 313 and the system time unit 220 shown in FIG. 2, the car flameout/ignition detecting unit 211, the time completion unit 212, and the timer 213 has the same function, and the same portions will not be described again here. .
- the vehicle flameout/ignition detecting unit 211 is further 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 first power management unit controls to control 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 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 second power management unit 315 starts the timer 316 after receiving the first control signal, and controls the second type of function module breakpoint of the vehicle-mounted mobile terminal when the timer 316 reaches the timing time, so as to prevent the vehicle-mounted mobile terminal from running out of the vehicle power. Flat power.
- the car is in a state of long-term flameout. 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 316.
- the timing time here can also be set as needed, for example, 18h.
- 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 time completion device of the present invention is small, which is far less than the power consumption of the vehicle-mounted 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 311 is further adapted to send a second control signal to the first power management unit and the second power management unit when detecting the ignition of the automobile;
- the first power management unit 314 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 315 restores the power supply of the second type of functional module of the in-vehicle mobile terminal after receiving the second control signal.
- FIG. 4 shows a schematic diagram of an in-vehicle mobile terminal according to another embodiment of the present invention.
- the in-vehicle mobile terminal 400 includes a time completion device 410 as shown in FIG. 2 or FIG.
- the in-vehicle mobile terminal is a driving recorder or a smart rearview mirror.
- the technical solution according to the present invention is to add a micro control unit MCU to the vehicle-mounted mobile terminal; when detecting the vehicle stalling, the MCU records the time of the flameout time, and starts the timer to start from 0; when the MCU is When the ignition of the car is detected, the time of the ignition timing of the car is calculated according to the time of the flameout time and the time of counting the timer, and the time of the ignition timing of the car is output to the system time unit of the vehicle mobile terminal, so that the vehicle mobile terminal can obtain a The correct time to prevent information captured by the in-vehicle mobile terminal due to incorrect time or lack of time is not available.
- 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.
- 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.
- DSP digital signal processor
- 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.
- 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
本发明公开了一种车载移动终端的时间补全方法、装置和车载移动终端。该方法包括:在车载移动终端中加入一个微控制单元MCU;MCU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;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。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。
Description
本发明涉及车辆技术领域,具体涉及一种车载移动终端的时间补全方法、装置和车载移动终端。
在车辆行驶的过程中,为了在出现车辆事故时,提供事故处理的证据,往往会通过行车记录仪进行车辆行驶过程中的视频记录。同时,为了保证视频证据的可用性,同时记录的还有视频中事件发生的时间作为该证据可用的依据。其中,行车记录仪的时间通常是通过车辆中的GPS或者网络实时获取当前时间。但是,通过车辆中的GPS或者网络实时获取当前时间需要网络信号的支持,如果车辆停泊在地库中,当车辆开启的时候发生刮蹭等事故的时候,因为地下车库中没有信号,行车记录仪无法获取到正确的时间,其显示的通常是出厂时间,那么其记录的视频中没有时间标定,进而导致在事故处理过程中,该视频作为证据的说服力下降或者不可用,降低用户的使用体验。
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车载移动终端的时间补全方法、装置和车载移动终端。
依据本发明的一个方面,提供了一种车载移动终端的时间补全方法,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MCU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。
根据本发明的另一方面,提供了一种车载移动终端的时间补全装置,其中,该装置包括:系统时间单元和一个微控制单元MCU;所述MCU包括:汽车熄火/点火检测单元、时间补全单元和计时器;
汽车熄火/点火检测单元,适于在检测到汽车熄火时,向时间补全单元发送第一控制信号;以及适于在检测到汽车点火时,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。
根据本发明的又一方面,提供了一种车载移动终端,其中,该车载移动终端包括如前所述的时间补全装置。
根据本发明的一个方面,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一种车载移动终端的时间补全方法。
根据本发明的又一个方面,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是在车载移动终端中加入一个微控制单元MCU;MCU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;当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,这样就可以使得车载移动终端得到一个正确的时间,防止因时间不正确或没有时间而引起的车载移动终端捕获的信息不可用。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。
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车载移动终端的时间补全方法的流程 图;
图2示出了根据本发明一个实施例的一种车载移动终端的时间补全装置的示意图;
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时间补全装置的示意图;
图4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车载移动终端的时间补全方法的流程图。该方法包括:
步骤S110,在车载移动终端中加入一个微控制单元MCU。
步骤S120,MCU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。
步骤S130,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,以便在汽车无法获取到网络时间时进行输出。
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,在本发明的一个实施例中,当系统时间单元获取到汽车点火的时间后,车载移动终端的系统时间单元在汽车无法通过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。如果在能够通过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,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,具体的方法就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。
汽车的车载移动终端的使用中,在汽车熄火的情况下也可能处于开启的装状态,这就回造成汽车电瓶的电量消耗,如果汽车长时间不点火,电瓶的电量就会耗尽,影响汽车的正常使用。例如,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。所以,为了防止汽车电瓶的电量耗尽,在本发明的一个实施例中,图1所示的方法进一步包括:
MCU在检测到汽车熄火时,还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平的电量。
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,在汽车熄火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,本发明的时间补全装置中的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,该方法进一步包括: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。
图2示出了根据本发明一个实施例的一种车载移动终端的时间补全装置的示意图。如图2所示,该车载移动终端的时间补全装置200包括:系统时间单元220和一个微控制单元MCU210;MCU210包括:汽车熄火/点火检测单元211、时间补全单元212和计时器213。
汽车熄火/点火检测单元211,适于在检测到汽车熄火时,向时间补全单元212发送第一控制信号;以及适于在检测到汽车点火时,向时间补全单元212发送第二控制信号。
汽车熄火/点火检测单元211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时间补全单元212;在检测到汽车点火时,向时间补全单元212发送汽车点火的第二控制信号。
时间补全单元212,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213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213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220。
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,车载移动终端需要通过上述装置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,在本发明的一个实施例中,系统时间单元220,适于在无法通过GPS或网络获取到时间信息时,将MCU的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,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212,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。
汽车的车载移动终端的使用中,在汽车熄火的情况下也可能处于开启的装状态,这就回造成汽车电瓶的电量消耗,如果汽车长时间不点火,电瓶的电量就会耗尽,影响汽车的正常使用。例如,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。所以,为了防止汽车电瓶的电量耗尽。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时间补全装置的示意图。如图3所示,车载移动终端的时间补全装置300包括:系统时间单元320和一个微控制单元MCU310;MCU310包括:汽车熄火/点火检测单元311、时间补全单元312、计时器313、第一电源管理单元314、第二电源管理单元315以及定时时间为预设时间的定时器316。其中系统时间单元320、汽车熄火 /点火检测单元311、时间补全单元312、计时器313与图2所示的系统时间单元220、汽车熄火/点火检测单元211、时间补全单元212和计时器213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314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315,在收到第一控制信号后启动定时器316,在定时器316到达定时时间时控制车载移动终端的第二类功能模块断点,以防止车载移动终端耗尽车载电平的电量。
汽车处于长时间熄火的状态,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316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,本发明的时间补全装置中的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311,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314,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315,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4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4所示,车载移动终端400包括如图2或图3所示的的时间补全装置410。
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。
需要说明的是,图4所示的车载移动终端和图2或图3所示的的时间补全装置的各实施例对应相同,上文已有详细说明,在此不再赘述。
综上所述,根据本发明的技术方案是在车载移动终端中加入一个微控制单元MCU;MCU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;当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,这样就可以使得车载移动终端得到一个正确的时间,防止因时间不正确或没有时间而引起的车载移动终端捕获的信息不可用。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。
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车载移动终端的时间补全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 (19)
- 一种车载移动终端的时间补全方法,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MCU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。
- 如权利要求1所述的方法,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1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。
- 如权利要求1-3中任一项所述的方法,其中,该方法进一步包括:所述MCU在检测到汽车熄火时,还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平的电量。
- 如权利要求4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4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4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1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。
- 一种车载移动终端的时间补全装置,其中,该装置包括:系统时间单元和一个微控制单元MCU;所述MCU包括:汽车熄火/点火检测单元、时间补全单元和计时器;汽车熄火/点火检测单元,适于在检测到汽车熄火时,向时间补全单元发送第一控制信号;以及适于在检测到汽车点火时,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。
- 如权利要求9所述的时间补全装置,其中,所述系统时间单元,适于在无法通过GPS或网络获取到时间信息时,将MCU的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9所述的时间补全装置,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。
- 如权利要求书9-11中任一项所述的时间补全装置,其中,所述MCU还包括: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,进一步适于在检测到汽车熄火时,还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点,以防止车载移动终端耗尽车载电平的电量。
- 如权利要求12所述的时间补全装置,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12所述的时间补全装置,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12所述的时间补全装置,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,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。
- 一种车载移动终端,其中,该车载移动终端包括如权利要求9-15所述的时间补全装置。
- 如权利要求16所述的车载移动终端,其中,所述车载移动终端为行车记录仪或智能后视镜。
- 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1-8中的任一个所述的一种车载移动终端的时间补全方法。
- 一种计算机可读介质,其中存储了如权利要求18所述的计算机程序。
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