CN113936356B - Control method and device of automobile data recorder, automobile data recorder and medium - Google Patents
Control method and device of automobile data recorder, automobile data recorder and medium Download PDFInfo
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- CN113936356B CN113936356B CN202111150924.6A CN202111150924A CN113936356B CN 113936356 B CN113936356 B CN 113936356B CN 202111150924 A CN202111150924 A CN 202111150924A CN 113936356 B CN113936356 B CN 113936356B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
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Abstract
The application is suitable for the technical field of vehicle-mounted equipment, and provides a control method and device of a vehicle recorder, the vehicle recorder and a medium. The control method of the automobile data recorder specifically comprises the following steps: when the driving recorder is in an electrified state, acquiring a level signal currently received by a first power supply port of the driving recorder, and acquiring an accumulated count value of a vehicle ignition signal currently corresponding to the driving recorder; and controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal and the accumulated count value which are currently received by the first power supply port. The embodiment of the application can be compatible with various wiring modes, so that the automobile data recorder can be switched among the wiring modes.
Description
Technical Field
The application belongs to the technical field of vehicle-mounted equipment, and particularly relates to a control method and device of a vehicle recorder, the vehicle recorder and a medium.
Background
The automobile data recorder is a device for recording related information such as images and sounds during the running of the automobile.
The current automobile data recorder mainly comprises the following operation modes. The first operation mode is a three-wire mode, the automobile data recorder is always in an electrified state in the three-wire mode, and can enter a normal video mode when a vehicle ignition signal is detected, and enter a parking monitoring mode when a vehicle flameout signal is detected. The second operation mode is a two-wire mode, and the automobile data recorder can enter a normal video mode when in an electrified state and is powered off when in a powered off state in the two-wire mode.
However, a control method compatible with two wiring modes is lacking at present, so that the automobile data recorder can be switched between the two wiring modes.
Disclosure of Invention
The embodiment of the application provides a control method and device of a vehicle data recorder, the vehicle data recorder and a medium, which can be compatible with various wiring modes, so that the vehicle data recorder can be switched among the wiring modes.
An embodiment of the present application provides a control method for a vehicle recorder, where the control method is applied to the vehicle recorder, and the vehicle recorder includes at least two wiring modes, and the control method includes:
When the automobile data recorder is in an electrified state, acquiring a level signal currently received by a first power supply port of the automobile data recorder, and acquiring an accumulated count value of a vehicle ignition signal currently corresponding to the automobile data recorder;
And controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal currently received by the first power supply port and the accumulated count value.
In some embodiments of the application, the wiring pattern includes: a two-wire mode and a three-wire mode; the step of controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal currently received by the first power supply port and the accumulated count value, includes: if the first power supply port does not receive the level signal and the accumulated count value is equal to a preset value, controlling the automobile data recorder to enter the two-wire system mode; and if the first power supply port receives the level signal or the accumulated count value is not equal to a preset value, updating the accumulated count value and controlling the automobile data recorder to enter the three-wire system mode.
In some embodiments of the present application, the updating the accumulated count value and controlling the tachograph to enter the three-wire mode includes: if the first power supply port receives a level signal corresponding to the vehicle ignition signal, performing a first updating operation on the accumulated count value; and controlling the automobile data recorder to enter a normal video mode of the three-wire system mode.
In some embodiments of the present application, after the controlling the tachograph to enter the normal video mode of the three-wire mode, the method further includes: and if the first power supply port receives a level signal corresponding to a vehicle flameout signal, controlling the automobile data recorder to switch to a parking monitoring mode of the three-wire system mode.
In some embodiments of the present application, the updating the accumulated count value and controlling the tachograph to enter the three-wire mode further includes: if the first power supply port does not receive the level signal and the accumulated count value is not equal to a preset value, performing a second updating operation on the accumulated count value; and controlling the automobile data recorder to enter a parking monitoring mode of the three-wire system mode.
In some embodiments of the present application, the controlling the vehicle event data recorder to switch to the parking monitoring mode of the three-wire mode includes: disabling target hardware of the automobile data recorder; and/or reducing the frequency of the vehicle event data recorder transmitting heartbeat packets to a data server; and/or closing the target application program of the automobile data recorder.
In some embodiments of the present application, the vehicle event data recorder further includes a second power supply port, before the acquiring the level signal currently received by the first power supply port of the vehicle event data recorder, including: and if the electric signal is received from the second power supply port, confirming that the automobile data recorder is in an electrified state.
The second aspect of the embodiment of the present application provides a control device for a vehicle recorder, where the device is configured in the vehicle recorder, and the vehicle recorder includes at least two wiring modes, and the control device includes:
The acquisition unit is used for acquiring a level signal currently received by a first power supply port of the automobile data recorder when the automobile data recorder is in an electrified state and acquiring an accumulated count value of a vehicle ignition signal currently corresponding to the automobile data recorder;
and the control unit is used for controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal currently received by the first power supply port and the accumulated count value.
A third aspect of the embodiment of the present application provides a vehicle recorder, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the steps of the above method are implemented when the processor executes the computer program.
A fourth aspect of the embodiments of the present application provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the above method.
A fifth aspect of the embodiments of the present application provides a computer program product, which when run on a vehicle recorder, causes the vehicle recorder to perform the steps of the method when executed.
In the embodiment of the application, when the driving recorder is in the electrified state, the level signal currently received by the first power supply port of the driving recorder is obtained, the accumulated count value of the vehicle ignition signal currently corresponding to the driving recorder is obtained, and then the driving recorder is controlled to enter the corresponding wiring mode according to the level signal and the accumulated count value currently received by the first power supply port, so that the driving recorder can be switched among multiple wiring modes while being compatible with the multiple wiring modes.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic implementation flow chart of a control method of a vehicle recorder according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a control device of a vehicle recorder according to an embodiment of the present application;
Fig. 3 is a schematic structural diagram of a vehicle recorder according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be protected by the present application based on the embodiments of the present application.
The automobile data recorder is a device for recording related information such as images and sounds during the running of the automobile.
The current automobile data recorder mainly comprises the following operation modes. The first operation mode is a three-wire mode, the automobile data recorder is always in an electrified state in the three-wire mode, and can enter a normal video mode when a vehicle ignition signal is detected, and enter a parking monitoring mode when a vehicle flameout signal is detected. The second operation mode is a two-wire mode, and the automobile data recorder can enter a normal video mode when in an electrified state and is powered off when in a powered off state in the two-wire mode.
However, a control method compatible with two wiring modes is lacking at present, so that the automobile data recorder can be switched between the two wiring modes.
In order to illustrate the technical scheme of the application, the following description is made by specific examples.
Fig. 1 is a schematic implementation flow chart of a control method of a vehicle recorder according to an embodiment of the present application, where the method may be applied to a vehicle recorder, and may be applicable to situations where multiple wiring modes need to be compatible, so that the vehicle recorder may switch between the multiple wiring modes.
The vehicle event data recorder includes at least two wiring modes, for example, in some embodiments of the present application, the vehicle event data recorder may include the three-wire mode and the two-wire mode.
Specifically, the control method of the automobile data recorder may include the following steps S101 to S104.
Step S101, when the driving recorder is in an electrified state, acquiring a level signal currently received by a first power supply port of the driving recorder, and acquiring an accumulated count value of a vehicle ignition signal currently corresponding to the driving recorder.
In the embodiment of the application, the automobile data recorder can be powered on through different interfaces according to actual conditions. Accordingly, a corresponding manner may be selected to detect whether the vehicle event data recorder is in an energized state.
In some embodiments of the present application, the vehicle recorder may include a second power supply port, and if the vehicle recorder receives an electrical signal from the second power supply port, it may be confirmed that the vehicle recorder is in an energized state.
Specifically, the automobile data recorder can be connected with the automobile through a serial bus (Universal Serial Bus, USB) interface.
The USB interface may include different ports, and specifically may include a supply voltage (Volt Current Condenser, VCC) pin, data interaction pins d+ (data+) and D- (Data-), an adaptive cruise control power supply (Adaptive Cruise Control, ACC) pin, and a wire Ground (GND) pin.
In some embodiments of the present application, the above-mentioned automobile data recorder may be connected to a cigar lighter of a vehicle, and the VCC pin may receive an electrical signal after the connection. At this time, the VCC pin is used for power supply, and the automobile data recorder uses the VCC pin and the GND pin of the USB interface, and is in the two-wire mode. After the vehicle is ignited, the automobile data recorder enters an electrified state and enters a normal video mode when the automobile data recorder is in the electrified state. After the vehicle is flameout, the automobile data recorder enters a power-off state and is powered off when the automobile data recorder is in the power-off state.
In other embodiments of the present application, the above-mentioned automobile data recorder may be connected to the constant current of the automobile, and after the connection, the VCC pin and the ACC pin may both receive the electrical signal. At this time, the VCC pin is used for supplying power, the ACC pin is used for detecting a fire signal or a flameout signal of the vehicle, and the automobile data recorder uses the VCC pin, ACC pin and GND pin of the USB interface, and is in the three-wire mode. The VCC pin is continuously powered on, so the automobile data recorder is always in a power-on state. After the vehicle fires, the ACC pin can detect a high-level signal, namely a fire signal is detected, and the automobile data recorder enters a normal video mode. After the vehicle is flameout, the ACC pin can detect a low-level signal, namely a flameout signal is detected, and the automobile data recorder enters a parking monitoring mode.
Thus, the second power supply port may be referred to as a VCC pin. That is, the automobile data recorder confirms that itself is in the energized state when the VCC pin detects the electrical signal.
In order to be compatible with two-wire system modes and three-wire system modes, in the embodiment of the application, when the automobile data recorder is in an electrified state, a level signal currently received by a first power supply port of the automobile data recorder can be obtained, and an accumulated count value of a vehicle ignition signal currently corresponding to the automobile data recorder can be obtained.
The first power supply port is used for judging whether the vehicle is on fire or the vehicle is off fire according to the received level signal, and in some embodiments, the first power supply port may refer to the ACC pin. The accumulated Count value is used to determine whether the current power-on state of the vehicle recorder is the power-on state re-entered after the abnormal power-off, and in some embodiments, the vehicle recorder may obtain the accumulated Count value recorded by the mode Counter (CNT).
Step S102, controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal and the accumulated count value which are currently received by the first power supply port.
That is, the automobile data recorder can control the automobile data recorder to enter different wiring modes according to the level signal currently received by the first power supply port and the specific value of the accumulated count value, so that the automobile data recorder is compatible with multiple wiring modes and can switch among the multiple wiring modes.
Considering that when two wiring modes are compatible, the automobile data recorder using the three-wire mode may not receive the level signal of the first power supply port when the automobile data recorder reenters the power-on state after abnormal power failure, and is mistakenly considered to use the two-wire mode. If the first power supply port receives the level signal or the accumulated count value is not equal to the preset value, the automobile data recorder can update the accumulated count value and control the automobile data recorder to enter a three-wire system mode. Through updating the accumulated count value and comparing the accumulated count value with a preset value, the automobile data recorder can realize the switching between the two modes, and meanwhile, the error entering into the two-wire system mode is avoided.
The preset value may be set according to practical situations, and in some embodiments, the preset value may be set to 0.
Specifically, when the first power supply port does not receive the level signal and the accumulated count value is equal to the preset value, it is indicated that the current power-on state of the automobile data recorder is not the power-on state which is re-entered after abnormal power-off, and because the first power supply port does not receive the level signal, it is indicated that the automobile data recorder does not use the first power supply port. Therefore, if the first power supply port does not receive the level signal and the accumulated count value is equal to the preset value, the automobile data recorder can control the automobile data recorder to enter the two-wire system mode.
When the first power supply port receives the level signal, the automobile data recorder is indicated to use the first power supply port; when the accumulated count value is not equal to the preset value, the current power-on state of the automobile data recorder is possibly the power-on state re-entered after abnormal power-off, and the automobile data recorder can receive the level signal of the first power supply port after the automobile is re-ignited. Therefore, if the first power supply port receives the level signal or the accumulated count value is not equal to the preset value, the automobile data recorder can update the accumulated count value and control the automobile data recorder to enter the three-wire system mode.
In a more specific embodiment, if the first power supply port receives a level signal corresponding to the vehicle ignition signal, the tachograph may perform a first update operation on the accumulated count value, and control itself to enter a normal video mode of the three-wire system mode.
The level signal corresponding to the vehicle ignition signal may refer to a high level signal, that is, when the first power supply port receives the high level signal, it is indicated that the vehicle recorder is in a three-wire system mode, and the vehicle is in a fire state, at this time, the vehicle recorder may enter a normal video mode of the three-wire system mode to perform a conventional vehicle recording operation. Meanwhile, the automobile data recorder needs to perform a first updating operation on the accumulated count value so as to prevent the automobile data recorder from entering a two-wire system mode by mistake after abnormal power failure. The first updating operation may refer to incrementing by one when the cumulative count value is less than the threshold value, and not updating when the cumulative count value is equal to the threshold value.
The threshold value may also be set according to practical situations, and in some embodiments, the threshold value may be set to 5.
That is, the level signal corresponding to the vehicle ignition signal is received at the first power supply port, and the accumulated count value of the automobile data recorder is not equal to the preset value through the first updating operation. If the automobile data recorder is abnormally powered down and enters the power-on state again, even if the first power supply port does not receive the level signal, the automobile data recorder still enters the three-wire mode to continue to work because the accumulated count value is not equal to the preset value.
Correspondingly, if the first power supply port does not receive the level signal and the accumulated count value is not equal to the preset value, the accumulated count value is subjected to second updating operation, and the automobile data recorder can control the automobile data recorder to enter a parking monitoring mode of a three-wire system mode.
The second update operation is the opposite operation of the first update operation, and may refer to, for example, subtracting one from the accumulated count value.
That is, when the first power supply port does not receive the level signal and the accumulated count value is not equal to the preset value, it is indicated that the current power-on state of the current vehicle recorder may be a re-entered power-on state after abnormal power-off, although the first power supply port of the vehicle recorder does not receive the level signal, after the vehicle is re-ignited, the vehicle recorder may re-receive the level signal of the first power supply port, so that the vehicle recorder is substantially in the three-wire mode. Under the condition, the automobile data recorder can perform a second updating operation on the accumulated count value and control the automobile data recorder to enter a parking monitoring mode of a three-wire system mode, so that the influence on the use of a user caused by directly switching to the two-wire system mode after abnormal power failure is avoided.
And if the first power supply port does not receive the level signal after the automobile data recorder is electrified again for a plurality of times, the accumulated count value is equal to a preset value along with the second updating operation of the accumulated count value each time, which indicates that the first power supply port is not used all the time. When the automobile data recorder enters the power-on state next time, the automobile data recorder can control the automobile data recorder to enter a two-wire system mode by itself because the first power supply port does not receive the level signal and the accumulated count value is equal to the preset value, and therefore switching of the two wiring modes is achieved.
In other embodiments of the present application, after controlling the vehicle recorder to enter the normal video mode of the three-wire system mode, if the first power supply port receives a level signal corresponding to the vehicle flameout signal, the vehicle recorder may control itself to switch to the parking monitoring mode of the three-wire system mode.
The level signal corresponding to the vehicle flameout signal can be a low level signal, the working energy consumption of the parking monitoring mode is lower than that of the normal video mode, and the monitoring requirement in the parking state can be met.
That is, when the first power supply port receives the low-level signal, the automobile data recorder can control the automobile data recorder to switch to the parking monitoring mode of the three-wire mode, so that the use power consumption of the automobile data recorder is reduced.
Specifically, in order to control the vehicle to switch to the parking monitoring mode of the three-wire mode, the vehicle recorder can deactivate the target hardware of the vehicle recorder, for example, the hardware with higher power consumption required by the deactivation; and/or reducing the frequency of the vehicle event data recorder transmitting the heartbeat packet to the data server; and/or, closing a target application program of the automobile data recorder, such as closing an application program using GPS positioning.
Correspondingly, after entering the parking monitoring mode, if the first power supply port receives the level signal corresponding to the vehicle ignition signal again, the automobile data recorder can switch back to the normal working mode of the three-wire system mode.
It should be noted that, the staff may set an initial cumulative count value for the automobile data recorder according to the actual situation, for example, the initial cumulative count value may be set to 5.
The automobile data recorder is connected with the automobile through a USB interface, and the initial accumulated count value is 5, the threshold value is 5, and the preset value is 0 for illustration. Assuming that the automobile data recorder actually adopts a three-wire system mode, after the automobile data recorder enters an electrified state for the first time, the automobile data recorder enters the three-wire system mode because the accumulated count value is not equal to 0, and the automobile data recorder is switched between a normal video recording mode and a parking monitoring mode according to a level signal received by an ACC pin. If the automobile data recorder is abnormally powered down and re-enters an electrified state in the use process, for example, the USB interface is plugged in again by a user, and if the ACC pin currently receives a level signal, the automobile data recorder can re-enter a normal working mode of a three-wire system mode; if the ACC pin does not receive the level signal currently, the accumulated count value is decremented by one, and the parking monitoring mode is restored. Because abnormal power failure is sporadic, when the automobile data recorder enters an electrified state next time, the ACC pin can generally receive a level signal corresponding to an ignition signal of the automobile, and the accumulated count value is also increased by one again, so that the accumulated count value is always not equal to 0, and the automobile data recorder is kept to work in a three-wire system mode.
And assuming that the automobile data recorder actually adopts a two-wire system mode, after the automobile data recorder enters the power-on state for the first time, the automobile data recorder enters the three-wire system mode because the accumulated count value is not equal to 0, but the accumulated count value is reduced by one because the ACC pin does not receive a level signal, after the automobile data recorder is electrified again for many times, the accumulated count value is equal to 0, and then the automobile data recorder enters the two-wire system mode when entering the power-on state subsequently.
In practical application, if the vehicle stops and turns off, the automobile data recorder using the three-wire system mode fails abnormally, and when the automobile data recorder is powered on again, if the automobile data recorder enters a corresponding wiring mode only according to the level signal of the first power supply port, the ACC pin does not receive the level signal, and the VCC pin can receive the electric signal, so that the automobile data recorder can mistakenly consider that the automobile data recorder is in the two-wire system mode. At this time, the device may enter a normal video mode to operate, resulting in waste of energy consumption and even feeding of a vehicle battery.
In the embodiment of the application, the automobile data recorder is controlled to enter the corresponding wiring mode according to the level signal and the accumulated count value which are currently received by the first power supply port, so that the automobile data recorder can be switched between the two wiring modes while being compatible with the two wiring modes, and the energy consumption waste and the power feeding of the automobile battery caused by the automobile data recorder entering the two-wire mode by mistake after abnormal power failure can be avoided.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may occur in other orders in accordance with the application.
Fig. 2 is a schematic structural diagram of a control device 200 of a vehicle recorder according to an embodiment of the present application, where the control device 200 of the vehicle recorder is configured on the vehicle recorder, and the vehicle recorder includes at least two wiring modes.
Specifically, the control device 200 of the automobile data recorder may include:
An obtaining unit 201, configured to obtain, when the vehicle event data recorder is in an energized state, a level signal currently received by a first power supply port of the vehicle event data recorder, and obtain an accumulated count value of a vehicle ignition signal currently corresponding to the vehicle event data recorder;
and the control unit 202 is configured to control the automobile data recorder to enter a corresponding wiring mode according to the level signal currently received by the first power supply port and the accumulated count value.
In some embodiments of the application, the wiring modes include a two-wire mode and a three-wire mode; the control unit 202 may be specifically configured to: if the first power supply port does not receive the level signal and the accumulated count value is equal to a preset value, controlling the automobile data recorder to enter the two-wire system mode; and if the first power supply port receives the level signal or the accumulated count value is not equal to a preset value, updating the accumulated count value and controlling the automobile data recorder to enter the three-wire system mode.
In some embodiments of the present application, the control unit 202 may be specifically configured to: if the first power supply port receives a level signal corresponding to the vehicle ignition signal, performing a first updating operation on the accumulated count value; and controlling the automobile data recorder to enter a normal video mode of the three-wire system mode.
In some embodiments of the present application, the control unit 202 may be specifically configured to: and if the first power supply port receives a level signal corresponding to a vehicle flameout signal, controlling the automobile data recorder to switch to a parking monitoring mode of the three-wire system mode.
In some embodiments of the present application, the control unit 202 may be specifically configured to: if the first power supply port does not receive the level signal and the accumulated count value is not equal to a preset value, performing a second updating operation on the accumulated count value; and controlling the automobile data recorder to enter a parking monitoring mode of the three-wire system mode.
In some embodiments of the present application, the control unit 202 may be specifically configured to: disabling target hardware of the automobile data recorder; and/or reducing the frequency of the vehicle event data recorder transmitting heartbeat packets to a data server; and/or closing the target application program of the automobile data recorder.
In some embodiments of the present application, the control device of the vehicle recorder further includes a second power supply port, and the control device 200 of the vehicle recorder may further include a power supply unit, where if an electrical signal is received from the second power supply port, it is determined that the vehicle recorder is in an energized state.
It should be noted that, for convenience and brevity of description, the specific working process of the control device 200 of the automobile data recorder may refer to the corresponding process of the method described in fig. 1, and will not be described herein again.
Fig. 3 is a schematic diagram of a vehicle recorder according to an embodiment of the present application. The vehicle event data recorder may include at least two wiring modes.
The automobile data recorder 3 may include: a processor 30, a memory 31 and a computer program 32, such as a control program of a tachograph, stored in said memory 31 and being executable on said processor 30. The steps in the above-described embodiments of the control method of each of the tachographs are implemented when the processor 30 executes the computer program 32, such as steps S101 to S102 shown in fig. 1. Or the processor 30, when executing the computer program 32, performs the functions of the modules/units in the above-described device embodiments, such as the acquisition unit 201 and the control unit 202 shown in fig. 2.
The computer program may be divided into one or more modules/units, which are stored in the memory 31 and executed by the processor 30 to accomplish the present application, the one or more modules/units may be a series of computer program instruction segments capable of accomplishing specific functions, which instruction segments describe the execution of the computer program in the tachograph.
For example, the computer program may be split into: an acquisition unit and a control unit.
The specific functions of each unit are as follows: the acquisition unit is used for acquiring a level signal currently received by a first power supply port of the automobile data recorder when the automobile data recorder is in an electrified state and acquiring an accumulated count value of a vehicle ignition signal currently corresponding to the automobile data recorder; and the control unit is used for controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal currently received by the first power supply port and the accumulated count value.
The automobile data recorder may include, but is not limited to, a processor 30, a memory 31. It will be appreciated by those skilled in the art that fig. 3 is merely an example of a vehicle recorder and is not meant to be limiting, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the vehicle recorder may further include input and output devices, network access devices, buses, etc.
The Processor 30 may be a central processing unit (Central Processing Unit, CPU), other general purpose Processor, digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), off-the-shelf Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 31 may be an internal storage unit of the automobile data recorder, for example, a hard disk or a memory of the automobile data recorder. The memory 31 may also be an external storage device of the automobile data recorder, such as a plug-in hard disk, a smart memory card (SMART MEDIA CARD, SMC), a Secure Digital (SD) card, a flash memory card (FLASH CARD) or the like. Further, the memory 31 may further include both an internal storage unit and an external storage device of the automobile data recorder. The memory 31 is used for storing the computer program and other programs and data required by the tachograph. The memory 31 may also be used for temporarily storing data that has been output or is to be output.
In some embodiments of the present application, in order to enable the vehicle recorder to meet the working requirements, the vehicle recorder may be further configured with one or more of a camera, a horn, a microphone, a SIM card slot, an indicator light, various sensors, and an antenna.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/vehicle recorder and method may be implemented in other manners. For example, the apparatus/vehicle recorder embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The control method of the automobile data recorder is characterized by being applied to the automobile data recorder, wherein the automobile data recorder comprises at least two wiring modes, and the wiring modes comprise: a two-wire mode and a three-wire mode; the control method comprises the following steps:
When the automobile data recorder is in an electrified state, acquiring a level signal currently received by a first power supply port of the automobile data recorder, and acquiring an accumulated count value of a vehicle ignition signal currently corresponding to the automobile data recorder;
and controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal currently received by the first power supply port and the accumulated count value, wherein the accumulated count value is used for judging whether the current electrified state of the automobile data recorder is the electrified state which is reentered after abnormal power failure.
2. The method for controlling a vehicle recorder according to claim 1, wherein the controlling the vehicle recorder to enter the corresponding wiring mode according to the level signal currently received by the first power supply port and the accumulated count value includes:
if the first power supply port does not receive the level signal and the accumulated count value is equal to a preset value, controlling the automobile data recorder to enter the two-wire system mode;
And if the first power supply port receives the level signal or the accumulated count value is not equal to a preset value, updating the accumulated count value and controlling the automobile data recorder to enter the three-wire system mode.
3. The control method of the automobile data recorder according to claim 2, wherein the updating the accumulated count value and controlling the automobile data recorder to enter the three-wire mode includes:
If the first power supply port receives a level signal corresponding to the vehicle ignition signal, performing a first updating operation on the accumulated count value;
and controlling the automobile data recorder to enter a normal video mode of the three-wire system mode.
4. The control method of a drive recorder according to claim 3, further comprising, after said controlling said drive recorder to enter a normal video mode of said three-wire system mode:
and if the first power supply port receives a level signal corresponding to a vehicle flameout signal, controlling the automobile data recorder to switch to a parking monitoring mode of the three-wire system mode.
5. The control method of a vehicle event data recorder according to any one of claims 2 to 4, characterized in that the updating the accumulated count value and controlling the vehicle event data recorder to enter the three-wire mode further comprises:
If the first power supply port does not receive the level signal and the accumulated count value is not equal to a preset value, performing a second updating operation on the accumulated count value;
And controlling the automobile data recorder to enter a parking monitoring mode of the three-wire system mode.
6. The control method of the automobile data recorder according to claim 4, wherein the controlling the automobile data recorder to switch to the parking monitoring mode of the three-wire mode includes:
disabling target hardware of the automobile data recorder;
And/or reducing the frequency of the vehicle event data recorder transmitting heartbeat packets to a data server;
and/or closing the target application program of the automobile data recorder.
7. The control method of a vehicle recorder according to any one of claims 1 to 4, wherein the vehicle recorder further includes a second power supply port, before the acquiring the level signal currently received by the first power supply port of the vehicle recorder, including:
and if the electric signal is received from the second power supply port, confirming that the automobile data recorder is in an electrified state.
8. The utility model provides a controlling means of vehicle event data recorder, its characterized in that disposes in vehicle event data recorder, vehicle event data recorder includes at least two kinds of wiring modes, wiring mode includes: a two-wire mode and a three-wire mode; the control device includes:
The acquisition unit is used for acquiring a level signal currently received by a first power supply port of the automobile data recorder when the automobile data recorder is in an electrified state and acquiring an accumulated count value of a vehicle ignition signal currently corresponding to the automobile data recorder;
and the control unit is used for controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal currently received by the first power supply port and the accumulated count value, wherein the accumulated count value is used for judging whether the current electrified state of the automobile data recorder is the electrified state which is reentered after abnormal power failure.
9. A vehicle recorder comprising a first power supply port, a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 7 when the computer program is executed.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1 to 7.
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| CN202111150924.6A CN113936356B (en) | 2021-09-29 | 2021-09-29 | Control method and device of automobile data recorder, automobile data recorder and medium |
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