CN114387705A - Vehicle intelligent monitoring method and system, vehicle-mounted controller and acceleration sensor - Google Patents

Vehicle intelligent monitoring method and system, vehicle-mounted controller and acceleration sensor Download PDF

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Publication number
CN114387705A
CN114387705A CN202011110477.7A CN202011110477A CN114387705A CN 114387705 A CN114387705 A CN 114387705A CN 202011110477 A CN202011110477 A CN 202011110477A CN 114387705 A CN114387705 A CN 114387705A
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acceleration
value
axis
vehicle
change value
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CN114387705B (en
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陈松强
龚少波
苏凯
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BYD Co Ltd
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BYD Co Ltd
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    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C5/00Registering or indicating the working of vehicles
    • G07C5/08Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841Registering performance data
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/40Features of the power supply for the anti-theft system, e.g. anti-theft batteries, back-up power supply or means to save battery power
    • B60R25/403Power supply in the vehicle
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C5/00Registering or indicating the working of vehicles
    • G07C5/008Registering or indicating the working of vehicles communicating information to a remotely located station
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C5/00Registering or indicating the working of vehicles
    • G07C5/08Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808Diagnosing performance data
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C5/00Registering or indicating the working of vehicles
    • G07C5/08Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0816Indicating performance data, e.g. occurrence of a malfunction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/65Control of camera operation in relation to power supply
    • H04N23/651Control of camera operation in relation to power supply for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

The invention discloses an intelligent vehicle monitoring method and system, a vehicle-mounted controller and an acceleration sensor. The method comprises the following steps: acquiring current vehicle data, entering a low power consumption mode when the current vehicle data meets the monitoring condition of the sentinel, and sending a sentinel enabling signal to the acceleration sensor; receiving a collision interrupt signal sent by an acceleration sensor, exiting from a low power consumption mode, controlling a power supply module to electrify a camera module, and controlling the camera module to record a target video with a target duration; receiving second acceleration data sent by the acceleration sensor, and judging whether the second acceleration data meets an instant release condition; and if the second acceleration data meets the instant release condition, controlling the power supply module to stop supplying power to the camera module, recovering the low power consumption mode, and sending a recovery enabling signal to the acceleration sensor. The method realizes that the low power consumption mode is entered again after the low power consumption mode interruption is completed once, can effectively reduce the power consumption in the sentinel mode, and avoids the risk of power feeding.

Description

Vehicle intelligent monitoring method and system, vehicle-mounted controller and acceleration sensor
Technical Field
The invention relates to the technical field of vehicle-mounted monitoring, in particular to a vehicle intelligent monitoring method, a vehicle intelligent monitoring system, a vehicle-mounted controller and an acceleration sensor.
Background
As small cars become more widely used in the home, car intelligence has also developed, in which a sentinel model plays an important role. The sentinel mode is that when a vehicle is damaged in a stopped state, the process that the vehicle is threatened or injured is recorded through a camera module such as an external panoramic camera or a driving recorder so as to inform a vehicle owner that an accident has occurred and record a reporting process.
The sentinel model of existing automobiles detects potential threats through the external camera of the automobile; if a small threat is detected, for example, a person leans against a car, the sentinel mode is switched to an alarm state, a message is displayed on the touch screen, and a camera of the sentinel mode is warned to record; if a more serious threat is detected, such as someone breaking a window, the sentinel mode will switch to an "alarm" state, activating the car alarm, increasing the brightness of the central display screen, and playing the music of the car audio system at a greater volume. However, after the existing automobile sentinel mode is started, functional modules such as a camera module, an on-board controller (including but not limited to SOC), an anti-theft module and the like are all in a working state, so that the camera module, the on-board controller (including but not limited to SOC), the anti-theft module and the like are in a working state for a long time, and the risk of automobile feeding is easily caused.
Disclosure of Invention
The embodiment of the invention provides an intelligent vehicle monitoring method and system, a vehicle-mounted controller and an acceleration sensor, and aims to solve the problem that the risk of vehicle feeding is easily caused after the conventional vehicle sentry mode is started.
The invention provides an intelligent vehicle monitoring method, which comprises the following steps executed by a vehicle-mounted controller:
acquiring current vehicle data, entering a low power consumption mode when the current vehicle data meets the monitoring condition of a sentinel, and sending a sentinel enabling signal to an acceleration sensor;
receiving a collision interrupt signal sent by the acceleration sensor, exiting from a low power consumption mode, controlling a power supply module to electrify a camera module, and controlling the camera module to record a target video with a target duration;
receiving second acceleration data sent by the acceleration sensor, and judging whether the second acceleration data meets an instant release condition;
and if the second acceleration data meets the instant release condition, controlling the power supply module to stop supplying power to the camera module, recovering the low power consumption mode, and sending a recovery enabling signal to the acceleration sensor.
Preferably, after the determining whether the second acceleration data meets an immediate release condition, the vehicle intelligent monitoring method further includes:
and if the second acceleration data does not meet the instant release condition, controlling the power supply module to electrify the anti-theft module, controlling the anti-theft module to perform anti-theft processing, controlling the power supply module to stop supplying power to the camera module and the anti-theft module after the anti-theft processing, recovering the low power consumption mode, and sending a recovery enabling signal to the acceleration sensor.
Preferably, the determining whether the second acceleration data meets an immediate release condition includes:
acquiring a second acceleration change value corresponding to the current moment according to the second acceleration data of the current moment and the second acceleration data of the previous moment, and judging whether the second acceleration change value is greater than a second change threshold value;
determining the current moment when the second acceleration change value is greater than the second change threshold value as a target moment, and counting the target quantity corresponding to the target moment in the target analysis duration;
if the target number is smaller than the preset number, determining that the second acceleration data meets an instant release condition;
and if the target quantity is not less than the preset quantity, determining that the second acceleration data does not meet the instant release condition.
Preferably, the second acceleration data comprises a second X-axis acceleration value, a second Y-axis acceleration value, and a second Z-axis acceleration value; the second acceleration change value comprises a second X-axis change value, a second Y-axis change value and a second Z-axis change value;
the obtaining of the second acceleration change value corresponding to the current time according to the second acceleration data of the current time and the second acceleration data of the previous time includes:
determining the absolute value of the difference value between the second X-axis acceleration value at the current moment and the second X-axis acceleration value at the previous moment as a second X-axis change value; determining the absolute value of the difference value between the second Y-axis acceleration value at the current moment and the second Y-axis acceleration value at the previous moment as a second Y-axis change value; determining the absolute value of the difference value between the second Z-axis acceleration value at the current moment and the second Z-axis acceleration value at the previous moment as the second Z-axis change value;
determining the current moment corresponding to the second acceleration change value being greater than the second change threshold as the target moment, including:
and if at least one of the second X-axis change value, the second Y-axis change value and the second Z-axis change value is greater than a second change threshold value, determining the current moment corresponding to the second acceleration change value as a target moment.
The invention provides an intelligent vehicle monitoring method, which comprises the following steps executed by an acceleration sensor:
receiving a sentinel enabling signal sent by a vehicle-mounted controller, entering a low power consumption mode, collecting first acceleration data, and judging whether the first acceleration data meets a collision interruption condition;
if the first acceleration data meet the collision interruption condition, sending a collision interruption signal to the vehicle-mounted controller, enabling the vehicle-mounted controller to exit from the low power consumption mode, controlling a power supply module to electrify a camera module, and controlling the camera module to record a target video with a target duration;
acquiring second acceleration data corresponding to the target analysis duration, and sending the second acceleration data to the vehicle-mounted controller;
and receiving a recovery enabling signal sent by the vehicle-mounted controller, and recovering the low power consumption mode.
Preferably, the determining whether the first acceleration data satisfies a collision interruption condition includes:
acquiring a first acceleration change value corresponding to the current moment according to the first acceleration data of the current moment and the first acceleration data of the previous moment, and judging whether the first acceleration change value is greater than a first change threshold value;
and if the first acceleration change value is larger than a first change threshold value, determining that the first acceleration data meets the collision interruption condition.
Preferably, the first acceleration data comprises a first X-axis acceleration value, a first Y-axis acceleration value, and a first Z-axis acceleration value; the first acceleration change value comprises a first X-axis change value, a first Y-axis change value and a first Z-axis change value;
the acquiring a first acceleration change value corresponding to the current moment according to the first acceleration data of the current moment and the first acceleration data of the previous moment includes:
determining the absolute value of the difference value between the first X-axis acceleration value at the current moment and the first X-axis acceleration value at the previous moment as a first X-axis change value; determining the absolute value of the difference value between the first Y-axis acceleration value at the current moment and the first Y-axis acceleration value at the previous moment as a first Y-axis change value; determining the absolute value of the difference value between the first Z-axis acceleration value at the current moment and the first Z-axis acceleration value at the previous moment as the first Z-axis change value;
if the first acceleration change value is greater than a first change threshold, determining that the first acceleration data meets a crash interruption condition, including:
and if at least one of the first X-axis change value, the first Y-axis change value and the first Z-axis change value is greater than a first change threshold value, determining that the first acceleration data meets a collision interruption condition.
The invention provides an on-board controller, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the intelligent vehicle monitoring method.
The invention provides an acceleration sensor, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the intelligent vehicle monitoring method.
The invention provides an intelligent vehicle monitoring system which comprises a vehicle-mounted controller, an acceleration sensor, a camera module, an anti-theft module and a power module, wherein the acceleration sensor, the camera module, the anti-theft module and the power module are connected with the vehicle-mounted controller; the vehicle-mounted controller executes the vehicle intelligent monitoring method, and the acceleration sensor executes the vehicle intelligent monitoring method.
According to the vehicle intelligent monitoring method, the vehicle intelligent monitoring system, the vehicle-mounted controller and the acceleration sensor, when the automobile enters the sentinel mode, the vehicle-mounted controller and the acceleration sensor can be in the low power consumption mode, the vehicle-mounted controller can exit the low power consumption mode according to the collision interrupt signal sent by the acceleration sensor, the power supply module is controlled to supply power to the camera module, the camera module is controlled to record the target video, the abnormal monitoring and camera shooting functions in the sentinel mode are met, and the feed risk caused by long-time standby in the sentinel mode can be avoided. After the target video is recorded, the vehicle-mounted controller can determine whether an instant release condition is met according to second acceleration data acquired by the acceleration sensor in real time, and the vehicle-mounted controller is enabled to recover a low power consumption mode according to a judgment result, so that the risk of feeding caused by long-time standby in a sentry mode is avoided.
According to the vehicle intelligent monitoring method, the vehicle intelligent monitoring system, the vehicle-mounted controller and the acceleration sensor, when the vehicle enters a sentry mode, the vehicle-mounted controller and the acceleration sensor can be in a low power consumption mode, the acceleration sensor can judge whether a collision interruption condition is met according to the first acceleration data so as to form a collision interruption signal for controlling the vehicle to exit the low power consumption mode, and the power consumption of the processing process is low; the acceleration sensor sends a collision interruption signal to the vehicle-mounted controller, so that the vehicle-mounted controller records a target video, the collision process of the automobile is recorded, and the aim of monitoring the automobile in a sentry mode is fulfilled; after exiting the low power consumption mode, the acceleration sensor can send the acquired second acceleration data to the vehicle-mounted controller, so that the vehicle-mounted controller can judge whether an instant release condition is met or not according to the second acceleration data, and the judgment processing efficiency is improved; the acceleration sensor can also recover the low-power-consumption mode after receiving the recovery enabling signal sent by the vehicle-mounted controller, so that the low-power-consumption mode can be entered again after the low-power-consumption mode is interrupted once, the power consumption in the sentinel mode can be effectively reduced, and the feed risk caused by long-time standby in the sentinel mode is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of an intelligent vehicle monitoring system according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for intelligently monitoring a vehicle according to an embodiment of the present invention;
FIG. 3 is another flow chart of a method for intelligent monitoring of a vehicle in accordance with an embodiment of the present invention;
FIG. 4 is another flow chart of a method for intelligent monitoring of a vehicle in accordance with an embodiment of the present invention;
fig. 5 is another flowchart of a vehicle intelligent monitoring method according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides an intelligent vehicle monitoring method which is applied to an intelligent vehicle monitoring system shown in figure 1, wherein the intelligent vehicle monitoring system comprises a vehicle-mounted controller, an acceleration sensor connected with the vehicle-mounted controller, a camera module, an anti-theft module and a power supply module, and the power supply module supplies power to the vehicle-mounted controller, the acceleration sensor, the camera module and the anti-theft module.
The vehicle-mounted controller is arranged on the automobile and can execute the vehicle intelligent monitoring method provided by the implementation. In this example, the vehicle-mounted controller may be a controller integrated with other functions, or may be an independently configured controller, such as an independently configured System On Chip (SOC).
Among them, the acceleration sensor is a sensor capable of measuring acceleration. In this example, the acceleration sensor is disposed on the vehicle to collect acceleration data in real time.
The camera module is a module capable of realizing a camera function, and the camera module may be a vehicle event data recorder arranged inside the automobile or a camera arranged outside the automobile, including but not limited to a panoramic camera.
The power module is a module for supplying power to each functional module of the vehicle intelligent monitoring system. Understandably, the power module is connected with the vehicle-mounted controller, the acceleration sensor and the camera module and used for supplying power to the vehicle-mounted controller, the acceleration sensor and the camera module. In this example, the power supply module includes a BMS connected to the on-vehicle controller and a battery connected to the BMS.
As an example, the intelligent vehicle monitoring system further includes an anti-theft module connected to the onboard controller and the power module, and the onboard controller may control the power module to supply power to the anti-theft module or stop supplying power, and control the anti-theft module to perform anti-theft processing.
In an embodiment, as shown in fig. 2, an intelligent vehicle monitoring method is provided, which is described by taking the application of the method to the vehicle-mounted controller in fig. 1 as an example, and includes the following steps performed by the vehicle-mounted controller:
s201: the method comprises the steps of obtaining current vehicle data, entering a low power consumption mode when the current vehicle data meet sentinel monitoring conditions, and sending a sentinel enabling signal to an acceleration sensor.
Wherein the current vehicle data is data for reflecting a current state of the vehicle. The sentinel monitoring condition is a pre-configured condition for evaluating whether to enter a sentinel mode.
As an example, the vehicle-mounted controller acquires current vehicle data in real time, compares the current vehicle data with a sentinel monitoring condition, and if the current vehicle data meets the preset sentinel monitoring condition, the vehicle enters a sentinel mode, the vehicle-mounted controller and the acceleration sensor are in a low power consumption mode, and other functional modules except the vehicle-mounted controller and the acceleration sensor are in a sleep mode, so that the power consumption of the vehicle in the sentinel mode is reduced, and the feeding risk caused by long-time standby in the sentinel mode is avoided. The sentinel mode is a working mode which is used for recording the process that a vehicle is threatened or injured through camera modules such as an external panoramic camera or a vehicle traveling recorder when the vehicle is in a stopped state so as to inform a vehicle owner that an accident occurs and record the process of reporting the accident.
For example, when the current vehicle data is that the vehicle is turned off, the vehicle data is determined to meet the monitoring condition of a sentinel, the vehicle enters a sentinel mode, namely the vehicle-mounted controller and the acceleration sensor need to be in a low power consumption mode, and other functional modules except the vehicle-mounted controller and the acceleration sensor are in a sleep mode, so that the power consumption of the vehicle in the sentinel mode is reduced, and the risk of feeding caused by long-time standby in the sentinel mode is avoided.
As an example, when the automobile enters the sentinel mode, the on-board controller and the acceleration sensor enter the low power consumption mode, and other functional modules except the on-board controller and the acceleration sensor are in the sleep mode, so that the power consumption of the automobile in the sentinel mode is reduced, and the risk of power feeding caused by long-time standby in the sentinel mode is avoided. In this example, the other functional modules other than the on-board controller and the acceleration sensor include, but are not limited to, a camera module and an antitheft module. The low power consumption mode refers to a mode in which any functional module operates at a power consumption lower than that of normal operation. For example, if the power consumption of any vehicle-mounted controller during normal operation is 4mA to 7mA, the power consumption of the vehicle-mounted controller is less than 4mA when the vehicle-mounted controller enters the low power consumption mode. The sleep mode is a mode in which the functional module is powered off and does not work.
As an example, when the vehicle intelligent monitoring system is started up, the vehicle-mounted controller can complete initialization configuration according to preset sentinel mode configuration information, and when the current vehicle data meets preset sentinel monitoring conditions, the vehicle can enter the sentinel mode, at this time, the vehicle-mounted controller and the acceleration sensor are in a low power consumption mode, and other functional modules except the vehicle-mounted controller and the acceleration sensor are in a sleep mode, so that the acceleration sensor is configured according to the detection frequency in the sentinel mode configuration information to acquire acceleration data; and the vehicle-mounted controller performs subsequent processing on the acceleration data, the sentinel mode configuration information and the circulation mode configuration information.
The sentry enabling signal is an enabling signal which is sent to the acceleration sensor by the vehicle-mounted controller when the automobile enters the sentry mode so as to control the acceleration sensor to enter the low power consumption mode.
As an example, the vehicle-mounted controller acquires current vehicle data in real time, when the current vehicle data meets a sentinel monitoring condition, the vehicle enters a sentinel mode, at the moment, the vehicle-mounted controller enters a low power consumption mode, and sends a sentinel enabling signal to the acceleration sensor, so that the acceleration sensor also performs the low power consumption mode, and other functional modules except the vehicle-mounted controller and the acceleration sensor are in a sleep mode, thereby being beneficial to reducing the power consumption of the vehicle in the sentinel mode and avoiding the feed risk caused by long-time standby in the sentinel mode.
S202: and receiving a collision interrupt signal sent by the acceleration sensor, exiting from the low power consumption mode, controlling the power supply module to electrify the camera module, and controlling the camera module to record a target video with target duration.
The target time duration is a preset time duration for recording the video, and for example, the target time duration may be set to 15 s.
As an example, when an automobile is in a sentinel mode, the vehicle-mounted controller in the low power consumption mode can receive a collision interruption signal sent by an acceleration sensor in real time, wherein the collision interruption signal is a signal formed when first acceleration data collected by the acceleration sensor meets a collision interruption condition; at the moment, the vehicle-mounted controller is awakened, the vehicle-mounted controller and the acceleration sensor both exit from the low power consumption mode, and the power module can be controlled to power on the camera module so that the camera module exits from the sleep mode and enters into the working mode; then, the vehicle-mounted controller can send a recording instruction to the camera module so as to control the camera module to record and store the target video with the target duration; and finally, the vehicle-mounted controller controls the camera module to record the target video with the target duration. In this example, the camera module may adopt a panoramic camera disposed outside the automobile, and may record a target video of a target duration after the automobile is collided under the control of the onboard controller, so that a user can know a scene situation after the automobile is collided according to the target video.
S203: and receiving second acceleration data sent by the acceleration sensor, and judging whether the second acceleration data meets an instant release condition.
And the second acceleration data is data acquired in real time after the acceleration sensor exits the low power consumption mode. The immediate release condition is a condition for determining whether or not to immediately release the interrupt to return the vehicle-mounted controller and the acceleration sensor to the low power consumption mode. Generally, the instant release condition may be determined according to whether the collision state continues; for example, if the collision state does not continue, it is determined that the immediate release condition is satisfied; if the collision state continues, the instant release condition is determined not to be satisfied.
As an example, the vehicle-mounted controller receives a collision interrupt signal sent by the acceleration sensor, so that both the vehicle-mounted controller and the acceleration sensor exit the low power consumption mode, the acceleration sensor collects second acceleration data in real time within the target analysis duration, and sends the second acceleration data to the vehicle-mounted controller, so that the vehicle-mounted controller judges whether an instant release condition is met according to the received second acceleration data, and executes subsequent operations according to a judgment result.
S204: and if the second acceleration data meets the instant release condition, controlling the power supply module to stop supplying power to the camera module, recovering the low power consumption mode, and sending a recovery enabling signal to the acceleration sensor.
The recovery enable signal refers to an enable signal which is sent to the acceleration sensor by the vehicle-mounted controller after the vehicle-mounted controller exits the low power consumption mode so as to control the acceleration sensor to recover the low power consumption mode.
As an example, after the vehicle-mounted controller controls the camera module to record a target video with a target duration, if the second acceleration data collected and sent in real time by the acceleration sensor meets an instant release condition, the interruption can be immediately released after the target video is recorded, at this time, the vehicle-mounted controller can send a power supply stop instruction to the power supply module, so that the power supply module stops supplying power to the camera module, the camera module returns to the sleep mode, and the vehicle-mounted controller returns to the low power consumption mode, the step S201 is executed in a loop, and a return enable signal is sent to the acceleration sensor, so that the acceleration sensor returns to the low power consumption mode, so that the vehicle-mounted controller enters the low power consumption mode again after completing one-time interruption of the low power consumption mode, and power consumption in the sentry mode can be effectively reduced. Understandably, when the power module stops supplying power to the camera module, the vehicle-mounted controller and the acceleration sensor are in a low power consumption mode, the camera module and other functional modules are in a sleep mode, the power consumption of the vehicle in the sentinel mode is reduced, and the feed risk caused by long-time standby in the sentinel mode is avoided.
Understandably, after the vehicle-mounted controller receives the collision interrupt signal sent by the acceleration sensor, and the vehicle-mounted controller and the acceleration sensor exit the low power consumption mode, the vehicle-mounted controller judges whether the instant release condition is met or not according to the second acceleration data sent by the acceleration sensor, the judgment processing efficiency is higher than the processing efficiency of judging whether the second acceleration data meets the instant release condition or not by the acceleration sensor, and the whole processing efficiency of the monitoring process is improved.
S205: and if the second acceleration data does not meet the instant release condition, controlling the power supply module to electrify the anti-theft module, controlling the anti-theft module to perform anti-theft processing, and after the anti-theft processing, controlling the power supply module to stop supplying power to the camera module and the anti-theft module, recovering the low power consumption mode, and sending a recovery enabling signal to the acceleration sensor.
As an example, after controlling the camera module to record a target video with a target duration, if the second acceleration data acquired and sent by the acceleration sensor in real time does not satisfy the instant release condition, the interruption cannot be immediately released after recording the target video, and at this time, the vehicle-mounted controller may control the power module to power on the anti-theft module, so that the anti-theft module can normally work; then, the vehicle-mounted controller can send an anti-theft processing instruction to the anti-theft module so that the anti-theft module can perform anti-theft processing; after the anti-theft processing, the vehicle-mounted controller sends a power supply stopping instruction to the power supply module again, so that the power supply module stops supplying power to the camera module and the anti-theft module, the camera module and the anti-theft module are enabled to recover from the sleep mode, the vehicle-mounted controller recovers the low power consumption mode, step S201 is executed in a circulating mode, and an enabling recovery signal is sent to the acceleration sensor, so that the acceleration sensor recovers from the low power consumption mode, the low power consumption mode is entered again after the low power consumption mode is interrupted once, and the power consumption in the sentinel mode can be effectively reduced. Understandably, when the power module stops supplying power to the camera module and the anti-theft module, the vehicle-mounted controller and the acceleration sensor are in a low power consumption mode, the camera module and other functional modules are in a sleep mode, the power consumption of the automobile in the sentinel mode is reduced, and the power feeding risk caused by long-time standby in the sentinel mode is avoided.
In an embodiment, in step S204, the controlling of the anti-theft module performs anti-theft processing, including controlling the anti-theft module to alarm and sending alarm information to the vehicle owner terminal. The vehicle owner terminal is a mobile terminal binding vehicle owner identity information in advance. The alarm information is used for reminding the car owner that there is the information of car collision for the car owner sends, can specifically be when the car is lasted the collision, sends for car owner terminal through high in the clouds server. In this example, when the second acceleration data does not satisfy the instant disarming condition, the vehicle-mounted controller controls the power module to power on the anti-theft module, and then controls the anti-theft module to alarm, for example, controls the speaker to play an alarm sound, and sends an alarm message to the vehicle owner terminal to complete the anti-theft processing operation.
In the vehicle intelligent monitoring method provided by the embodiment, when an automobile enters a sentry mode, the vehicle-mounted controller and the acceleration sensor can be in a low power consumption mode, the vehicle-mounted controller can exit the low power consumption mode according to a collision interrupt signal sent by the acceleration sensor, the power supply module is controlled to supply power to the camera module, the camera module is controlled to record a target video, the abnormal monitoring and camera shooting functions in the sentry mode are met, and the feed risk caused by long-time standby in the sentry mode can be avoided. After the target video is recorded, the vehicle-mounted controller can determine whether an instant release condition is met or not according to second acceleration data acquired by the acceleration sensor in real time, and when the instant release condition is met, the vehicle-mounted controller controls the power supply module to stop supplying power to the camera module, so that the vehicle-mounted controller recovers the low power consumption mode, the vehicle-mounted controller enters the low power consumption mode again after the low power consumption mode is interrupted once, and the power consumption in the sentinel mode can be effectively reduced; when the instant release condition is not met, the vehicle-mounted controller firstly controls the anti-theft module to perform anti-theft treatment so as to ensure the safety of the automobile; and then the power supply module is controlled to stop supplying power to the camera module and the anti-theft module, so that the camera module and the anti-theft module are restored to the dormant mode, and the vehicle-mounted controller is restored to the low power consumption mode, so that the vehicle enters the low power consumption mode again after the interruption of the low power consumption mode is completed once, the power consumption of the vehicle in the sentinel mode is reduced, and the feed risk caused by long-time standby in the sentinel mode is avoided.
In one embodiment, before the vehicle-mounted controller and the acceleration sensor enter the low power consumption mode while the automobile is in the sentinel mode, the vehicle intelligent monitoring method further includes: when the system is started, the vehicle-mounted controller completes initialization configuration according to the sentinel mode configuration information.
The sentry mode configuration information is information which is written into a memory of the vehicle-mounted controller in advance so as to carry out initialization configuration when the system is started. Generally, the sentinel mode configuration information includes interrupt mode configuration information, monitoring frequency configuration information, and circulation mode configuration information. The interrupt mode configuration information refers to a configuration process of whether the interrupt mode is opened, and when the interrupt mode is opened, collision interrupt conditions need to be configured together. The monitoring frequency configuration information is used for configuring the frequency of the acceleration sensor for acquiring the acceleration data, and the range can be 3.9Hz-500 Hz. The circulation mode configuration information refers to a configuration process of whether a circulation mode is opened or not, when the circulation mode is opened, an instant release condition needs to be configured together, so that the low-power-consumption mode is entered again after one-time interruption of the low-power-consumption mode is completed, and the power consumption of a sentinel mode can be effectively reduced.
In this embodiment, when the system is powered on, the onboard controller interacts with the acceleration sensor through the I2C bus, so that the onboard controller can complete the initialization configuration of the acceleration sensor according to the sentinel mode configuration information written in the memory in advance, and the onboard controller can enable the acceleration sensor to work; opening an interrupt mode, configuring an interrupt trigger threshold corresponding to a collision interrupt condition, namely a first change threshold, wherein the size of the first change threshold limits the sensitivity of the vehicle-mounted controller for exiting a low power consumption mode to perform subsequent target video recording or anti-theft processing; the circulation mode is opened, so that the vehicle-mounted controller and the acceleration sensor enter the low power consumption mode again after the low power consumption mode is interrupted once, and the power consumption in the sentinel mode can be effectively reduced; when the circulation mode is opened, an instant release threshold corresponding to the instant release condition, namely the size of the second change threshold, is configured.
In an embodiment, as shown in fig. 3, the determining whether the second acceleration data satisfies the immediate release condition in step S203 includes the following steps:
s301: and acquiring a second acceleration change value corresponding to the current moment according to the second acceleration data of the current moment and the second acceleration data of the previous moment, and judging whether the second acceleration change value is greater than a second change threshold value.
S302: and determining the current moment with the second acceleration change value larger than the second change threshold as the target moment, and counting the number of targets corresponding to the target moment in the target analysis duration.
S303: and if the target number is smaller than the preset number, determining that the second acceleration data meets the instant release condition.
S304: and if the target number is not less than the preset number, determining that the second acceleration data does not meet the instant release condition.
Wherein the target analysis duration is a preset period for analyzing whether the immediate release condition is satisfied.
As an example, after exiting the low power consumption mode, the vehicle-mounted controller needs to receive the second acceleration data acquired by the acceleration sensor in real time to perform analysis processing, so as to analyze whether the second acceleration data meets the immediate release condition. Wherein the target number is a number set in advance for evaluating whether a sustained collision occurs. For example, the target number may be set to 1, or may be set to a plurality of numbers, and may be set according to actual conditions.
As an example, after receiving the second acceleration data, the vehicle-mounted controller calculates the second acceleration data at the current time and the second acceleration data at the previous time, and obtains a second acceleration change value corresponding to the current time. And comparing the second acceleration change value with a preset second change threshold, determining the current moment corresponding to the second acceleration change value being greater than the second change threshold as a target moment, and counting the number of targets corresponding to the target moment in the target analysis duration. If the target number is smaller than the preset number, continuous collision is determined not to occur within the target analysis duration, namely the collision state is not continuous, the condition of immediate release is determined to be met, the interruption can be immediately released after the target video is recorded, at the moment, the vehicle-mounted controller can send a power supply stopping instruction to the power supply module, the power supply module stops supplying power to the camera module, the camera module is enabled to recover the sleep mode, the vehicle-mounted controller recovers the low power consumption mode, the step S201 is executed in a circulating mode, and an enabling recovery signal is sent to the acceleration sensor, so that the acceleration sensor recovers the low power consumption mode, the acceleration sensor enters the low power consumption mode again after the interruption of the low power consumption mode is completed once, and the power consumption under the sentinel mode can be effectively reduced. If the target number is not less than the preset number, continuous collision is determined to occur within the target analysis duration, namely the collision state is continuous, the instant release condition is determined not to be met, the interruption cannot be immediately released after the target video is recorded, and the vehicle-mounted controller needs to control the power supply module to electrify the anti-theft module so that the anti-theft module can normally work; then sending an anti-theft processing instruction to the anti-theft module so that the anti-theft module carries out anti-theft processing; after the anti-theft processing, the vehicle-mounted controller sends a power supply stopping instruction to the power supply module again, so that the power supply module stops supplying power to the camera module and the anti-theft module, the camera module and the anti-theft module are enabled to recover from the sleep mode, the vehicle-mounted controller recovers the low power consumption mode, step S201 is executed in a circulating mode, and an enabling recovery signal is sent to the acceleration sensor, so that the acceleration sensor recovers from the low power consumption mode, the low power consumption mode is entered again after the low power consumption mode is interrupted once, and the power consumption in the sentinel mode can be effectively reduced.
In an embodiment, the second acceleration data includes a second X-axis acceleration value, a second Y-axis acceleration value, and a second Z-axis acceleration value; the second acceleration change value includes a second X-axis change value, a second Y-axis change value, and a second Z-axis change value.
Step S301, obtaining a second acceleration change value corresponding to the current time according to the second acceleration data of the current time and the second acceleration data of the previous time, including:
determining the absolute value of the difference value between the second X-axis acceleration value at the current moment and the second X-axis acceleration value at the previous moment as a second X-axis change value; determining the absolute value of the difference value between the second Y-axis acceleration value at the current moment and the second Y-axis acceleration value at the previous moment as a second Y-axis change value; and determining the absolute value of the difference value between the second Z-axis acceleration value at the current moment and the second Z-axis acceleration value at the previous moment as a second Z-axis change value.
Step S302, namely, determining the current time when the second acceleration change value is greater than the second change threshold as the target time, including:
and if at least one of the second X-axis change value, the second Y-axis change value and the second Z-axis change value is greater than a second change threshold value, determining the current moment corresponding to the second acceleration change value as the target moment.
As an example, the second acceleration data received by the onboard controller at each time includes a second X-axis acceleration value, a second Y-axis acceleration value, and a second Z-axis acceleration value in the same spatial coordinate system. After receiving the second acceleration data at the current moment, the vehicle-mounted controller needs to calculate the absolute value of the difference value between the second X-axis acceleration value at the current moment and the second X-axis acceleration value at the previous moment, and determines a second X-axis change value; calculating the absolute value of the difference value between the second Y-axis acceleration value at the current moment and the second Y-axis acceleration value at the previous moment, and determining a second Y-axis change value; and calculating the absolute value of the difference value between the second Z-axis acceleration value at the current moment and the second Z-axis acceleration value at the previous moment, and determining a second Z-axis change value, thereby determining the acceleration change values in the X-axis direction, the Y-axis direction and the Z-axis direction.
As an example, the onboard controller may compare the second X-axis change value, the second Y-axis change value, and the second Z-axis change value to a second change threshold, respectively. If at least one of the second X-axis change value, the second Y-axis change value and the second Z-axis change value is greater than the second change threshold, it is determined that a large acceleration change value exists in at least one of the three directions of the X-axis, the Y-axis and the Z-axis, that is, a collision exists in the corresponding direction, it is understood that after the collision is determined to exist according to the first acceleration data, the automobile is detected to be collided again, and at this time, the current time corresponding to the second acceleration change value is determined as the target time. On the contrary, if the second X-axis variation value, the second Y-axis variation value and the second Z-axis variation value are not greater than the second variation threshold, it can be determined that there is no collision in the corresponding direction, that is, after it is determined that there is a collision according to the first acceleration data, it is not detected that the vehicle is continuously collided, which indicates that the collision process is not continuous, and there is no need to perform subsequent steps.
In this example, the second variation threshold may be one, that is, the onboard controller compares the second X-axis variation value, the second Y-axis variation value, and the second Z-axis variation value with the same second variation threshold respectively. Or the second variation threshold comprises an X-axis second variation threshold, a Y-axis second variation threshold and a Z-axis second variation threshold; the vehicle-mounted controller needs to compare the second X-axis change value, the second Y-axis change value and the second Z-axis change value with the X-axis second change threshold, the Y-axis second change threshold and the Z-axis second change threshold respectively; if at least one of the second X-axis change value being greater than the X-axis second change threshold, the second Y-axis change value being greater than the Y-axis second change threshold and the second Z-axis change value being greater than the Z-axis second change threshold is satisfied, it is determined that a large acceleration change value exists in at least one of the three directions of the X-axis, the Y-axis and the Z-axis, that is, a collision exists in the corresponding direction, it may be understood that after the collision is determined to exist according to the first acceleration data, the automobile is detected to be collided again, and at this time, the current time corresponding to the second acceleration change value is determined as the target time. Otherwise, when the second X-axis variation value is not greater than the X-axis second variation threshold, the second Y-axis variation value is not greater than the Y-axis second variation threshold, and the second Z-axis variation value is not greater than the Z-axis second variation threshold, which are simultaneously satisfied, it may be determined that there is no collision in the corresponding direction, that is, after it is determined that there is a collision according to the first acceleration data, it is not detected that the vehicle is continuously collided, which indicates that the collision process is not continuous, and there is no need to perform subsequent steps.
In an embodiment, as shown in fig. 4, an intelligent vehicle monitoring method is provided, which is described by taking the acceleration sensor in fig. 1 as an example, and includes the following steps performed by the acceleration sensor:
s401: receiving a sentinel enabling signal sent by the vehicle-mounted controller, entering a low power consumption mode, collecting first acceleration data, and judging whether the first acceleration data meets a collision interruption condition.
The sentry enabling signal is an enabling signal which is sent to the acceleration sensor by the vehicle-mounted controller when the automobile enters the sentry mode so as to control the acceleration sensor to enter the low power consumption mode.
As an example, the vehicle-mounted controller acquires current vehicle data in real time, when the current vehicle data meets a sentinel monitoring condition, the vehicle enters a sentinel mode, at the moment, the vehicle-mounted controller enters a low power consumption mode, and sends a sentinel enabling signal to the acceleration sensor, so that the acceleration sensor also performs the low power consumption mode, and other functional modules except the vehicle-mounted controller and the acceleration sensor are in a sleep mode, thereby being beneficial to reducing the power consumption of the vehicle in the sentinel mode and avoiding the feed risk caused by long-time standby in the sentinel mode.
S402: and if the first acceleration data meets the collision interruption condition, sending a collision interruption signal to the vehicle-mounted controller, enabling the vehicle-mounted controller to exit from the low power consumption mode, controlling the power supply module to electrify the camera module, and controlling the camera module to record the target video with the target duration.
The first acceleration data refers to data acquired by the acceleration sensor in real time in a low power consumption mode. The collision interrupt condition is a condition for evaluating whether a collision occurs to interrupt the on-vehicle controller from being in the low power consumption mode. The collision interrupt signal is a signal for controlling the vehicle to exit the low power consumption mode.
As an example, when an automobile is in a sentry mode, a power supply module supplies power to a vehicle-mounted controller and an acceleration sensor so that the vehicle-mounted controller and the acceleration sensor are in a low power consumption mode, and other functional modules are in a sleep mode, at the moment, the acceleration sensor in the low power consumption mode collects first acceleration data in real time, and judges whether a collision interruption condition is met according to the first acceleration data; if the first acceleration data meets the collision interruption condition, determining that the automobile in the sentry mode is collided, generating a collision interruption signal, and sending the collision interruption signal to the vehicle-mounted controller, so that the vehicle-mounted controller and the acceleration sensor exit the low power consumption mode, controlling camera modules such as a panoramic camera or a driving recorder outside the automobile to record a target video, recording the collision process of the automobile, and achieving the purpose of monitoring the automobile in the sentry mode; if the first acceleration data does not meet the collision interruption condition, the automobile in the sentinel mode is determined not to be collided, the vehicle-mounted controller and the acceleration sensor need to be maintained in the low power consumption mode, and other functional modules are in the sleep mode, so that the power consumption of the automobile is reduced.
Understandably, when the vehicle-mounted controller and the acceleration sensor are both in the low power consumption mode, the acceleration sensor collects the first acceleration data and judges whether the collision interruption condition is met or not so as to determine whether the collision interruption signal is output or not, the acceleration sensor judges whether the first acceleration data meets the collision interruption condition or not, the judgment and processing power consumption is lower and is far lower than the processing power consumption of the vehicle-mounted controller for judging whether the first acceleration data meets the collision interruption condition or not, and the reduction of the power consumption of the vehicle in the sentinel mode is facilitated.
S403: and acquiring second acceleration data corresponding to the target analysis duration, and sending the second acceleration data to the vehicle-mounted controller.
Wherein the target analysis duration is a preset period for analyzing whether the immediate release condition is satisfied. The second acceleration data is data acquired in real time after the acceleration sensor exits the low power consumption mode.
As an example, after the vehicle-mounted controller sends the collision interrupt signal to the vehicle-mounted controller so that the vehicle-mounted controller and the acceleration sensor exit the low power consumption mode, the second acceleration data acquired in real time within the target analysis duration is needed, the acquired second acceleration data is sent to the vehicle-mounted controller, and the vehicle-mounted controller analyzes whether the instant release condition is met or not according to the second acceleration data.
S404: and receiving a recovery enabling signal sent by the vehicle-mounted controller, and recovering the low power consumption mode.
The recovery enable signal refers to an enable signal which is sent to the acceleration sensor by the vehicle-mounted controller after the vehicle-mounted controller exits the low power consumption mode so as to control the acceleration sensor to recover the low power consumption mode.
As an example, the acceleration sensor needs to acquire second acceleration data and send the second acceleration data to the vehicle-mounted controller within a target analysis duration of exiting the low power consumption mode, so that the vehicle-mounted controller generates a recovery enabling signal according to different processing logics and sends the recovery enabling signal to the acceleration sensor according to a judgment result whether the second acceleration data meets an instant release condition; after receiving the enable recovery signal, the acceleration sensor can recover the low power consumption mode, and circularly execute the step S401, so that the low power consumption mode can be entered again after the low power consumption mode is interrupted once, and the power consumption in the sentinel mode can be effectively reduced.
In the vehicle intelligent monitoring method provided by the embodiment, when an automobile enters a sentry mode, the vehicle-mounted controller and the acceleration sensor can be in a low power consumption mode, the acceleration sensor can judge whether a collision interruption condition is met according to first acceleration data so as to form a collision interruption signal for controlling to exit the low power consumption mode, and the power consumption of the processing process is low; the acceleration sensor sends a collision interruption signal to the vehicle-mounted controller, so that the vehicle-mounted controller records a target video, the collision process of the automobile is recorded, and the aim of monitoring the automobile in a sentry mode is fulfilled; after exiting the low power consumption mode, the acceleration sensor can send the acquired second acceleration data to the vehicle-mounted controller, so that the vehicle-mounted controller can judge whether an instant release condition is met or not according to the second acceleration data, and the judgment processing efficiency is improved; the acceleration sensor can also recover the low-power-consumption mode after receiving the recovery enabling signal sent by the vehicle-mounted controller, so that the low-power-consumption mode can be entered again after the low-power-consumption mode is interrupted once, the power consumption in the sentinel mode can be effectively reduced, and the feed risk caused by long-time standby in the sentinel mode is avoided.
In one embodiment, as shown in fig. 5, the step of determining whether the first acceleration data satisfies the crash interruption condition in step S402 includes the steps of:
s501: and acquiring a first acceleration change value corresponding to the current moment according to the first acceleration data of the current moment and the first acceleration data of the previous moment, and judging whether the first acceleration change value is greater than a first change threshold value.
S502: and if the first acceleration change value is larger than the first change threshold value, determining that the first acceleration data meets the collision interruption condition.
The first change threshold is a preset threshold for evaluating whether a collision occurs, and may be understood as a minimum value of acceleration change when a collision occurs.
As an example, an acceleration sensor provided on an automobile acquires first acceleration data based on a preset frequency, which is a preset frequency for controlling the acceleration sensor to acquire the first acceleration data; then, the acceleration sensor calculates the first acceleration data at the current moment and the first acceleration data at the previous moment, and obtains a first acceleration change value corresponding to the current moment. And comparing the first acceleration change value with a preset first change threshold value, and performing subsequent steps according to a comparison judgment result. If the first acceleration change value is larger than the first change threshold value, the first acceleration data is determined to meet the collision interruption condition, a collision interruption signal is formed, the vehicle-mounted controller is awakened, the vehicle-mounted controller and the acceleration sensor are enabled to interrupt the low power consumption mode, the power supply module is controlled to electrify the camera module, and the camera module is controlled to record the target video with the target duration. If the first acceleration change value is not larger than the first change threshold value, the first acceleration data is determined not to meet the collision interruption condition, the automobile is in a stop state but is not collided, the vehicle-mounted controller and the acceleration sensor are maintained in a low power consumption mode, and other functional modules except the vehicle-mounted controller and the acceleration sensor are in a sleep mode, so that the power consumption of the automobile in the sentinel mode is reduced, and the feeding risk caused by long-time standby in the sentinel mode is avoided.
In an embodiment, the first acceleration data includes a first X-axis acceleration value, a first Y-axis acceleration value, and a first Z-axis acceleration value; the first acceleration change value includes a first X-axis change value, a first Y-axis change value, and a first Z-axis change value.
Step S501, obtaining a first acceleration change value corresponding to the current time according to the first acceleration data of the current time and the first acceleration data of the previous time, including: determining the absolute value of the difference value between the first X-axis acceleration value at the current moment and the first X-axis acceleration value at the previous moment as a first X-axis change value; determining the absolute value of the difference value between the first Y-axis acceleration value at the current moment and the first Y-axis acceleration value at the previous moment as a first Y-axis change value; and determining the absolute value of the difference value between the first Z-axis acceleration value at the current moment and the first Z-axis acceleration value at the previous moment as a first Z-axis change value.
Step S502, namely if the first acceleration variation value is greater than the first variation threshold, determining that the first acceleration data satisfies the crash interruption condition, including: and if at least one of the first X-axis change value, the first Y-axis change value and the first Z-axis change value is greater than a first change threshold value, determining that the first acceleration data meets the collision interruption condition.
As an example, the first acceleration data collected by the acceleration sensor at each time includes a first X-axis acceleration value, a first Y-axis acceleration value, and a first Z-axis acceleration value in the same spatial coordinate system. After the acceleration sensor collects first acceleration data at the current moment, the absolute value of the difference value between a first X-axis acceleration value at the current moment and a first X-axis acceleration value at the previous moment needs to be calculated, and a first X-axis change value is determined; calculating the absolute value of the difference value between the first Y-axis acceleration value at the current moment and the first Y-axis acceleration value at the previous moment, and determining a first Y-axis change value; and calculating the absolute value of the difference value between the first Z-axis acceleration value at the current moment and the first Z-axis acceleration value at the previous moment, and determining a first Z-axis change value so as to determine the acceleration change values in the X-axis direction, the Y-axis direction and the Z-axis direction.
As an example, the acceleration sensor may compare the first X-axis variation value, the first Y-axis variation value, and the first Z-axis variation value with a first variation threshold, respectively. If at least one of the first X-axis change value, the first Y-axis change value and the first Z-axis change value is larger than the first change threshold value, the fact that a large acceleration change value exists in at least one of the X-axis direction, the Y-axis direction and the Z-axis direction is determined, namely, a collision exists in the corresponding direction is determined, therefore, the fact that the first acceleration data meet a collision interruption condition is determined, a collision interruption signal is formed, the vehicle-mounted controller is awakened, and the vehicle-mounted controller and the acceleration sensor exit the low power consumption mode. On the contrary, if the first X-axis change value, the first Y-axis change value and the first Z-axis change value are not greater than the first change threshold, the first acceleration data is determined not to satisfy the collision interruption condition, the vehicle is in a stopped state but not collided, the vehicle-mounted controller and the acceleration sensor are maintained in the low power consumption mode, and other functional modules except the vehicle-mounted controller and the acceleration sensor are in the sleep mode, so that the power consumption of the vehicle in the sentinel mode is reduced, and the risk of feeding caused by long-time standby in the sentinel mode is avoided.
In this example, the first variation threshold may be one, that is, the acceleration sensor compares the first X-axis variation value, the first Y-axis variation value, and the first Z-axis variation value with the same first variation threshold, respectively, to determine whether the first acceleration data satisfies the crash interruption condition. Or the first variation threshold comprises an X-axis first variation threshold, a Y-axis first variation threshold and a Z-axis first variation threshold; the acceleration sensor needs to compare the first X-axis change value, the first Y-axis change value and the first Z-axis change value with the X-axis first change threshold, the Y-axis first change threshold and the Z-axis first change threshold, respectively; if at least one of the first X-axis change value is greater than the first X-axis change threshold, the first Y-axis change value is greater than the first Y-axis change threshold and the first Z-axis change value is greater than the first Z-axis change threshold is satisfied, the fact that a large acceleration change value exists in at least one of the X-axis direction, the Y-axis direction and the Z-axis direction is determined, namely, a collision exists in the corresponding direction is determined, therefore, the first acceleration data is determined to meet the collision interruption condition, a collision interruption signal is formed, the vehicle-mounted controller is awakened, and the vehicle-mounted controller and the acceleration sensor are made to exit the low power consumption mode. On the contrary, when the first X-axis change value is not greater than the first X-axis change threshold, the first Y-axis change value is not greater than the first Y-axis change threshold and the first Z-axis change value is not greater than the first Z-axis change threshold, the first acceleration data is determined not to satisfy the collision interruption condition, the automobile is in a stop state but is not collided, the vehicle-mounted controller and the acceleration sensor are maintained in a low power consumption mode, other functional modules except the vehicle-mounted controller and the acceleration sensor are in a sleep mode, the power consumption of the automobile in the sentinel mode is reduced, and the feeding risk caused by long-time standby in the sentinel mode is avoided.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In one embodiment, an on-board controller is provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the vehicle intelligent monitoring method in the foregoing embodiments is implemented, for example, steps S201 to S205 shown in fig. 2 or steps S301 to S302 shown in fig. 3, which are not repeated herein to avoid repetition.
In one embodiment, an acceleration sensor is provided, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the vehicle intelligent monitoring method in the foregoing embodiments is implemented, for example, steps S401 to S404 shown in fig. 4 or steps S501 to S502 shown in fig. 5, which are not repeated herein to avoid repetition.
In one embodiment, an intelligent vehicle monitoring system is provided, where the intelligent vehicle monitoring system includes the on-board controller in the above embodiments, an acceleration sensor connected to the on-board controller, a camera module, an anti-theft module, and a power module, where the power module supplies power to the on-board controller, the acceleration sensor, the camera module, and the anti-theft module, the on-board controller performs the intelligent vehicle monitoring method shown in fig. 2-3, and the acceleration sensor performs the intelligent vehicle monitoring method shown in fig. 4-5.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
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.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention 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 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 invention, and are intended to be included within the scope of the present invention.

Claims (10)

1. The intelligent vehicle monitoring method is characterized by comprising the following steps executed by an on-board controller:
acquiring current vehicle data, entering a low power consumption mode when the current vehicle data meets the monitoring condition of a sentinel, and sending a sentinel enabling signal to an acceleration sensor;
receiving a collision interrupt signal sent by the acceleration sensor, exiting from a low power consumption mode, controlling a power supply module to electrify a camera module, and controlling the camera module to record a target video with a target duration;
receiving second acceleration data sent by the acceleration sensor, and judging whether the second acceleration data meets an instant release condition;
and if the second acceleration data meets the instant release condition, controlling the power supply module to stop supplying power to the camera module, recovering the low power consumption mode, and sending a recovery enabling signal to the acceleration sensor.
2. The intelligent vehicle monitoring method of claim 1, wherein after said determining whether said second acceleration data satisfies an immediate release condition, said intelligent vehicle monitoring method further comprises:
and if the second acceleration data does not meet the instant release condition, controlling the power supply module to electrify the anti-theft module, controlling the anti-theft module to perform anti-theft processing, controlling the power supply module to stop supplying power to the camera module and the anti-theft module after the anti-theft processing, recovering the low power consumption mode, and sending a recovery enabling signal to the acceleration sensor.
3. The intelligent vehicle monitoring method of claim 1, wherein said determining whether said second acceleration data satisfies an immediate release condition comprises:
acquiring a second acceleration change value corresponding to the current moment according to the second acceleration data of the current moment and the second acceleration data of the previous moment, and judging whether the second acceleration change value is greater than a second change threshold value;
determining the current moment when the second acceleration change value is greater than the second change threshold value as a target moment, and counting the target quantity corresponding to the target moment in the target analysis duration;
if the target number is smaller than the preset number, determining that the second acceleration data meets an instant release condition;
and if the target quantity is not less than the preset quantity, determining that the second acceleration data does not meet the instant release condition.
4. The intelligent vehicle monitoring method of claim 3, wherein the second acceleration data includes a second X-axis acceleration value, a second Y-axis acceleration value, and a second Z-axis acceleration value; the second acceleration change value comprises a second X-axis change value, a second Y-axis change value and a second Z-axis change value;
the obtaining of the second acceleration change value corresponding to the current time according to the second acceleration data of the current time and the second acceleration data of the previous time includes:
determining the absolute value of the difference value between the second X-axis acceleration value at the current moment and the second X-axis acceleration value at the previous moment as a second X-axis change value; determining the absolute value of the difference value between the second Y-axis acceleration value at the current moment and the second Y-axis acceleration value at the previous moment as a second Y-axis change value; determining the absolute value of the difference value between the second Z-axis acceleration value at the current moment and the second Z-axis acceleration value at the previous moment as the second Z-axis change value;
determining the current moment corresponding to the second acceleration change value being greater than the second change threshold as the target moment, including:
and if at least one of the second X-axis change value, the second Y-axis change value and the second Z-axis change value is greater than a second change threshold value, determining the current moment corresponding to the second acceleration change value as a target moment.
5. An intelligent vehicle monitoring method is characterized by comprising the following steps executed by an acceleration sensor:
receiving a sentinel enabling signal sent by a vehicle-mounted controller, entering a low power consumption mode, collecting first acceleration data, and judging whether the first acceleration data meets a collision interruption condition;
if the first acceleration data meet the collision interruption condition, sending a collision interruption signal to the vehicle-mounted controller, enabling the vehicle-mounted controller to exit from the low power consumption mode, controlling a power supply module to electrify a camera module, and controlling the camera module to record a target video with a target duration;
acquiring second acceleration data corresponding to the target analysis duration, and sending the second acceleration data to the vehicle-mounted controller;
and receiving a recovery enabling signal sent by the vehicle-mounted controller, and recovering the low power consumption mode.
6. The intelligent vehicle monitoring method of claim 5, wherein said determining whether the first acceleration data meets a crash break condition comprises:
acquiring a first acceleration change value corresponding to the current moment according to the first acceleration data of the current moment and the first acceleration data of the previous moment, and judging whether the first acceleration change value is greater than a first change threshold value;
and if the first acceleration change value is larger than a first change threshold value, determining that the first acceleration data meets the collision interruption condition.
7. The intelligent vehicle monitoring method of claim 6, wherein the first acceleration data includes a first X-axis acceleration value, a first Y-axis acceleration value, and a first Z-axis acceleration value; the first acceleration change value comprises a first X-axis change value, a first Y-axis change value and a first Z-axis change value;
the acquiring a first acceleration change value corresponding to the current moment according to the first acceleration data of the current moment and the first acceleration data of the previous moment includes:
determining the absolute value of the difference value between the first X-axis acceleration value at the current moment and the first X-axis acceleration value at the previous moment as a first X-axis change value; determining the absolute value of the difference value between the first Y-axis acceleration value at the current moment and the first Y-axis acceleration value at the previous moment as a first Y-axis change value; determining the absolute value of the difference value between the first Z-axis acceleration value at the current moment and the first Z-axis acceleration value at the previous moment as the first Z-axis change value;
if the first acceleration change value is greater than a first change threshold, determining that the first acceleration data meets a crash interruption condition, including:
and if at least one of the first X-axis change value, the first Y-axis change value and the first Z-axis change value is greater than a first change threshold value, determining that the first acceleration data meets a collision interruption condition.
8. An on-board controller comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the intelligent vehicle monitoring method according to any one of claims 1 to 4 when executing the computer program.
9. An acceleration sensor comprising a memory, a processor and a computer program stored in said memory and executable on said processor, characterized in that said processor implements a vehicle intelligent monitoring method according to any one of claims 5 to 7 when executing said computer program.
10. An intelligent vehicle monitoring system comprises a vehicle-mounted controller, an acceleration sensor, a camera module, an anti-theft module and a power module, wherein the acceleration sensor, the camera module, the anti-theft module and the power module are connected with the vehicle-mounted controller; the vehicle-mounted controller executes the vehicle intelligent monitoring method according to any one of claims 1 to 4, and the acceleration sensor executes the vehicle intelligent monitoring method according to any one of claims 5 to 7.
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