CN113936356A - 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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- CN113936356A CN113936356A CN202111150924.6A CN202111150924A CN113936356A CN 113936356 A CN113936356 A CN 113936356A CN 202111150924 A CN202111150924 A CN 202111150924A CN 113936356 A CN113936356 A CN 113936356A
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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
Abstract
The application is applicable to the technical field of vehicle-mounted equipment, and provides a control method and device of an automobile data recorder, the automobile data recorder and a medium. The control method of the automobile data recorder specifically comprises the following steps: when the automobile data recorder is in a power-on 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 and the accumulated count value 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 various 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 an automobile data recorder, the automobile data recorder and a medium.
Background
The driving recorder is an instrument for recording the image and sound of the vehicle during driving.
The current automobile data recorder mainly comprises the following operation modes. The first mode of operation is a three-wire mode, in which the tachograph is always powered on and can enter a normal video recording mode when a vehicle ignition signal is detected and enter a parking monitoring mode when a vehicle key-off signal is detected. The second operation mode is a two-wire system mode, and the automobile data recorder can enter a normal video recording mode when being in a power-on state and is shut down when being in a power-off state in the two-wire system mode.
However, a control method compatible with two wiring modes is lacked 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 an automobile data recorder, the automobile data recorder and a medium, which can be compatible with various wiring modes, so that the automobile data recorder can be switched among the various wiring modes.
The first aspect of the embodiments of the present application provides a control method for an automobile data recorder, where the control method is applied to an automobile data recorder, the automobile data recorder includes at least two connection modes, and the control method includes:
when the automobile data recorder is in a power-on 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 present application, the wiring pattern comprises: a two-wire mode and a three-wire mode; the 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 recording mode of the three-wire system mode.
In some embodiments of the present application, after the controlling the car recorder to enter the normal recording mode of the three-wire system 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 be switched 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 system 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 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 tachograph to switch to the parking monitoring mode of the three-wire system comprises: deactivating target hardware of the tachograph; and/or reducing the frequency of the heartbeat packet transmitted to the data server by the automobile data recorder; and/or closing a target application program of the automobile data recorder.
In some embodiments of the present application, before the obtaining of the level signal currently received by the first power supply port of the automobile data recorder, the automobile data recorder further includes a second power supply port, where: and if an electric signal is received from the second power supply port, the automobile data recorder is confirmed to be in a power-on state.
A second aspect of the embodiments of the present application provides a control device for a vehicle event data recorder, where the control device is configured in the vehicle event data recorder, the vehicle event data 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 a power-on 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 embodiments of the present application provides a vehicle event data recorder, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method when executing the computer program.
A fourth aspect of the embodiments of the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the above method.
A fifth aspect of embodiments of the present application provides a computer program product, which when running on a tachograph causes the tachograph to perform the steps of the method.
In the implementation mode of the application, when the driving recorder is in the power-on 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, then, according to the level signal and the accumulated count value currently received by the first power supply port, the driving recorder is controlled to enter the corresponding wiring mode, and the driving recorder is enabled to be compatible with multiple wiring modes and can be switched among the multiple wiring modes.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flow chart of an implementation of a control method of a vehicle event data recorder provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a control device of a vehicle event data recorder provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a vehicle event data recorder provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall be protected by the present application.
The driving recorder is an instrument for recording the image and sound of the vehicle during driving.
The current automobile data recorder mainly comprises the following operation modes. The first mode of operation is a three-wire mode, in which the tachograph is always powered on and can enter a normal video recording mode when a vehicle ignition signal is detected and enter a parking monitoring mode when a vehicle key-off signal is detected. The second operation mode is a two-wire system mode, and the automobile data recorder can enter a normal video recording mode when being in a power-on state and is shut down when being in a power-off state in the two-wire system mode.
However, a control method compatible with two wiring modes is lacked at present, so that the automobile data recorder can be switched between the two wiring modes.
In order to explain the technical means of the present application, the following description will be given by way of specific examples.
Fig. 1 shows a schematic implementation flow diagram of a control method for an automobile data recorder provided in an embodiment of the present application, where the method can be applied to an automobile data recorder, and is suitable for a situation where multiple connection modes need to be compatible, so that the automobile data recorder can be switched between the multiple connection modes.
The vehicle event data recorder comprises at least two wiring modes, for example, in some embodiments of the present application, the vehicle event data recorder can comprise 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 a power-on 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 an embodiment of the application, the automobile data recorder can be powered on through different interfaces according to actual conditions. Correspondingly, whether the automobile data recorder is in the power-on state or not can be detected in a corresponding mode.
In some embodiments of the application, the vehicle event data recorder may include a second power supply port, and the vehicle event data recorder may confirm that the vehicle event data recorder is in the power-on state if receiving the electric signal from the second power supply port.
Specifically, the driving recorder may be connected to the vehicle through a Universal Serial Bus (USB) interface.
The USB interface may include different ports, and specifically may include a supply Voltage (VCC) pin, Data interaction pins D + (Data +) and D- (Data-), an Adaptive Cruise Control (ACC) pin, and a Ground (GND) pin.
In some embodiments of the present application, the automobile data recorder may be connected to a cigarette 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 supplying power, 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 a power-on state and enters a normal video recording mode when the automobile data recorder is in the power-on state. After the vehicle is flamed out, the automobile data recorder enters a power-off state and is shut down when being in the power-off state.
In other embodiments of the present application, the vehicle event data recorder may be connected to a normal power supply of a vehicle, and both the VCC pin and the ACC pin may receive an electrical signal after the vehicle event data recorder is turned on. At this time, the VCC pin is used for supplying power, the ACC pin is used for detecting a sparking signal or a flameout signal of the vehicle, and the tachograph uses the VCC pin, the ACC pin and the GND pin of the USB interface and is in a three-wire system mode. The VCC pin is continuously electrified, so the automobile data recorder is always in an electrified state. After the vehicle strikes sparks, the ACC pin can detect high level signal, also detects the signal of striking sparks, and vehicle event data recorder gets into normal video recording mode. After the vehicle stalls, the ACC pin can detect low level signal, also detects stall signal, and vehicle event data recorder gets into the monitoring mode that parks.
Thus, the second power supply port may refer to a VCC pin. That is, the event data recorder confirms that it is in the power-on state when the VCC pin detects an electric signal.
In order to be compatible with two different wiring modes, namely a two-wire mode and a three-wire mode, in the embodiment of the application, when the automobile data recorder is in the power-on state, the level signal currently received by the first power supply port of the automobile data recorder can be acquired, and the accumulated count value of the vehicle ignition signal currently corresponding to the automobile data recorder can be acquired.
The first power supply port is used for judging that the vehicle is on or off 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 car recorder is the power-on state that is re-entered after abnormal power failure, and in some embodiments, the car recorder may obtain the accumulated Count value recorded by the mode Counter (CNT).
And S102, controlling the automobile data recorder to enter a corresponding wiring mode according to the level signal and the accumulated count value currently received by the first power supply port.
That is to say, the automobile data recorder can be controlled 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 can be switched among the various wiring modes while being compatible with the various wiring modes.
In consideration of compatibility between the two wiring modes, the automobile data recorder using the three-wire system mode may be mistakenly regarded as using the two-wire system mode because the level signal of the first power supply port cannot be received when the automobile data recorder enters the power-on state again after abnormal power failure. 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. By updating the accumulated count value and comparing the accumulated count value with a preset value, the automobile data recorder can realize switching between two modes, and meanwhile, the two-wire system mode is prevented from being mistakenly entered.
The preset value may be set according to actual conditions, 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 failure, and since 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; and when the accumulated count value is not equal to the preset value, the current power-on state of the automobile data recorder is possibly a power-on state which is re-entered after abnormal power failure, and the automobile data recorder can receive the level signal of the first power supply port after the vehicle 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 recording mode of the three-wire system mode.
The level signal corresponding to the vehicle ignition signal may be a high level signal, that is, when the first power supply port receives the high level signal, it indicates that the automobile data recorder is in the three-wire system mode, and the vehicle is in an ignition state, at this time, the automobile data recorder may enter a normal video recording mode of the three-wire system mode, so as to perform a normal automobile data recording operation. Meanwhile, the automobile data recorder needs to perform first updating operation on the accumulated count value so as to prevent the automobile data recorder from entering the two-wire system mode mistakenly after abnormal power failure. The first update operation may refer to adding one when the accumulated count value is less than the threshold value and not updating when the accumulated count value is equal to the threshold value.
The threshold value may also be set according to an actual situation, and in some embodiments, the threshold value may be set to 5.
That is, a 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 can enter the three-wire system mode to continue working 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 second updating operation is performed on the accumulated count value, and the automobile data recorder can control the automobile data recorder to enter the parking monitoring mode of the three-wire system mode.
The second update operation is the reverse operation of the first update operation, and may refer to, for example, decreasing the accumulated count value by one.
That is to say, 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 vehicle event data recorder may be the power-on state re-entered after the abnormal power failure, although the first power supply port of the vehicle event data recorder does not receive the level signal currently, after the vehicle is reignited, the vehicle event data recorder may receive the level signal of the first power supply port again, so that the vehicle event data recorder is substantially in the three-wire system mode. Under the condition, the automobile data recorder can perform second updating operation on the accumulated count value and control the automobile data recorder to enter the three-wire system parking monitoring mode, so that the influence on the use of a user due to the fact that the automobile data recorder is directly switched to the two-wire system mode after abnormal power failure is avoided.
And if the automobile data recorder is electrified again for multiple times, the first power supply port does not receive the level signal, and the accumulated count value is equal to the preset value along with the second updating operation of the accumulated count value every 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 the two-wire system mode 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 event data recorder to enter the normal video recording 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 event data 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 recording mode, and the monitoring requirement under the parking state can be met.
That is, when the first power supply port receives a low level signal, the tachograph may control itself to switch to the parking monitoring mode of the three-wire system mode, thereby reducing the usage power consumption of the tachograph.
Specifically, in order to control the parking monitoring mode which is switched to the three-wire system mode, the automobile data recorder may deactivate target hardware of the automobile data recorder, for example, deactivate hardware with higher required power consumption; and/or reducing the frequency of the heartbeat packet transmitted from the automobile data recorder to the data server; and/or turning off a target application of the automobile data recorder, for example, turning off an application 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 be switched 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 car event data recorder according to actual conditions, for example, the initial cumulative count value may be set to 5.
The example is illustrated in the following manner that the automobile data recorder is connected with the vehicle through the USB interface, and the initial accumulated count value is 5, the threshold value is 5, and the preset value is 0. Assuming that the automobile data recorder actually adopts a three-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, and switches between the normal video recording mode and the parking monitoring mode according to a level signal received by an ACC pin. If the automobile data recorder is abnormally powered down and enters the power-on state again in the using process, for example, the USB interface is unplugged and plugged again by a user, and if the ACC pin receives a level signal currently, the automobile data recorder can enter the normal working mode of the three-wire system mode again; and if the ACC pin does not receive the level signal currently, the accumulated count value is reduced by one, and the parking monitoring mode is recovered. Because the abnormal power failure is accidental, when the automobile data recorder enters the power-on state next time, the ACC pin can generally receive a level signal corresponding to a vehicle ignition signal, and the accumulated count value is added with 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 because the ACC pin does not receive a level signal, the accumulated count value is reduced by one, after the automobile data recorder is powered on again for multiple times, the accumulated count value is equal to 0, and then the automobile data recorder enters the two-wire system mode when subsequently entering the power-on state.
In practical application, if the automobile is stopped and flamed out, the automobile data recorder in the three-wire system mode is abnormally powered down, when the automobile data recorder is powered on again, if the automobile data recorder enters the corresponding wiring mode only according to the level signal of the first power supply port, the automobile data recorder can mistakenly think that the automobile data recorder is in the two-wire system mode because the ACC pin does not receive the level signal and the VCC pin can receive the electric signal. At this time, the device may enter a normal recording mode to operate, causing waste of energy consumption and even causing power feeding of the 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 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 energy consumption waste and feeding of a vehicle battery caused by mistakenly entering the two-wire mode after abnormal power failure of the automobile data recorder can be avoided.
It should be noted that, for simplicity of description, the foregoing method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts, as some steps may, in accordance with the present application, occur in other orders.
Fig. 2 is a schematic structural diagram of a control device 200 of an automobile data recorder according to an embodiment of the present disclosure, where the control device 200 of the automobile data recorder is configured on the automobile data recorder, and the automobile data recorder includes at least two connection modes.
Specifically, the control device 200 of the automobile data recorder may include:
the acquiring unit 201 is configured to acquire a level signal currently received by a first power supply port of the automobile data recorder when the automobile data recorder is in a power-on state, and acquire an accumulated count value of a vehicle ignition signal currently corresponding to the automobile data recorder;
the control unit 202 is configured to control the automobile data recorder to enter a corresponding connection mode according to the level signal currently received by the first power supply port and the accumulated count value.
In some embodiments of the present application, the wiring pattern includes a two-wire pattern and a three-wire pattern; 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 recording 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 be switched 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 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: deactivating target hardware of the tachograph; and/or reducing the frequency of the heartbeat packet transmitted to the data server by the automobile data recorder; and/or closing a target application program of the automobile data recorder.
In some embodiments of the present application, the control device of the driving recorder further includes a second power supply port, and the control device 200 of the driving recorder further includes a power supply unit, so that if an electric signal is received from the second power supply port, it is determined that the driving recorder is in the power-on state.
It should be noted that, for convenience and simplicity of description, the specific working process of the control device 200 of the automobile data recorder may refer to a corresponding process of the method illustrated in fig. 1, and is not described herein again.
Fig. 3 is a schematic diagram of a vehicle event data recorder according to an embodiment of the present application. The tachograph may comprise at least two wiring modes.
The drive recorder 3 may include: a processor 30, a memory 31 and a computer program 32, such as a control program for a tachograph, stored in said memory 31 and executable on said processor 30. The processor 30, when executing the computer program 32, implements the steps in the above-described respective embodiments of the control method of the tachograph, for example, steps S101 to S102 shown in fig. 1. Alternatively, the processor 30 implements the functions of the modules/units in the above device embodiments when executing the computer program 32, such as the acquiring 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 implement the present application, and the one or more modules/units may be a series of computer program instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program in the automobile data recorder.
For example, the computer program may be divided 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 a power-on 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 vehicle event recorder may include, but is not limited to, a processor 30, a memory 31. Those skilled in the art will appreciate that fig. 3 is merely an example of a tachograph and does not constitute a limitation of a tachograph, and may include more or less components than those shown, or some components in combination, or different components, for example, the tachograph may also include input-output devices, network access devices, buses, etc.
The Processor 30 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. 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, such as 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 Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the automobile data recorder. Further, the memory 31 may also 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 to temporarily store data that has been output or is to be output.
In some embodiments of the present application, in order to enable the automobile data recorder to meet the working requirement, the automobile data recorder may further be configured with one or more devices of a camera, a speaker, a microphone, a SIM card slot, an indicator light, various types of sensors, and an antenna.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
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 implementation. 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 device/tachograph and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/tachograph are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A control method of a vehicle event data recorder is characterized by being applied to the vehicle event data recorder, wherein the vehicle event data recorder comprises at least two wiring modes, and the control method comprises the following steps:
when the automobile data recorder is in a power-on 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.
2. The control method of a drive recorder according to claim 1, wherein the wiring mode includes: a two-wire mode and a three-wire mode;
the 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.
3. The method for controlling a drive recorder according to claim 2, wherein the updating the accumulated count value and controlling the drive 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 recording mode of the three-wire system mode.
4. The control method of a drive recorder according to claim 3, further comprising, after the controlling the drive recorder to enter the normal recording mode of the three-wire mode:
and if the first power supply port receives a level signal corresponding to a vehicle flameout signal, controlling the automobile data recorder to be switched to a parking monitoring mode of the three-wire system mode.
5. The method of controlling a drive recorder according to any one of claims 2 to 4, wherein the updating the accumulated count value and controlling the drive 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 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 a drive recorder according to claim 4, wherein the controlling of the drive recorder to switch to the three-wire mode parking monitoring mode includes:
deactivating target hardware of the tachograph;
and/or reducing the frequency of the heartbeat packet transmitted to the data server by the automobile data recorder;
and/or closing a target application program of the automobile data recorder.
7. The method for controlling the automobile data recorder according to any one of claims 1 to 4, wherein the automobile data recorder further comprises a second power supply port, and before the obtaining of the level signal currently received by the first power supply port of the automobile data recorder, the method comprises:
and if an electric signal is received from the second power supply port, the automobile data recorder is confirmed to be in a power-on state.
8. A control device of a driving recorder, which is configured on the driving recorder, the driving recorder comprises at least two wiring modes, the control device comprises:
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 a power-on 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.
9. A tachograph comprising a first power supply port, a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111150924.6A CN113936356A (en) | 2021-09-29 | 2021-09-29 | Control method and device of automobile data recorder, automobile data recorder and medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111150924.6A CN113936356A (en) | 2021-09-29 | 2021-09-29 | Control method and device of automobile data recorder, automobile data recorder and medium |
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| CN202111150924.6A Pending CN113936356A (en) | 2021-09-29 | 2021-09-29 | Control method and device of automobile data recorder, automobile data recorder and medium |
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