CN110962797A - Automobile electronic steering column lock control system and method - Google Patents

Automobile electronic steering column lock control system and method Download PDF

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Publication number
CN110962797A
CN110962797A CN201911378587.9A CN201911378587A CN110962797A CN 110962797 A CN110962797 A CN 110962797A CN 201911378587 A CN201911378587 A CN 201911378587A CN 110962797 A CN110962797 A CN 110962797A
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CN
China
Prior art keywords
automobile
steering column
column lock
gesture
driver
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Pending
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CN201911378587.9A
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Chinese (zh)
Inventor
张国平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Changfeng Technology Co Ltd
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Shanghai Changfeng Technology Co Ltd
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Priority to CN201911378587.9A priority Critical patent/CN110962797A/en
Publication of CN110962797A publication Critical patent/CN110962797A/en
Pending legal-status Critical Current

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    • 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
    • B60R25/20Means to switch the anti-theft system on or off
    • B60R25/25Means to switch the anti-theft system on or off using biometry
    • B60R25/255Eye recognition
    • 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
    • B60R25/01Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/02Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
    • B60R25/021Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
    • B60R25/0215Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids
    • 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
    • B60R25/20Means to switch the anti-theft system on or off
    • B60R25/2045Means to switch the anti-theft system on or off by hand gestures

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The embodiment of the invention provides a system and a method for controlling an electronic steering column lock of an automobile, wherein the system for controlling the electronic steering column lock of the automobile comprises the following components: a trigger system, comprising: the device comprises a display device, a recognition device and a central processing module; the central processing module is used for receiving the behavior of the driver sent by the identification module in real time, matching the behavior of the driver with a preset behavior pattern and generating an automobile ignition signal according to a matching result; the main controller is used for receiving the automobile ignition signal of the central processing module and generating an enabling signal according to the automobile ignition signal; and the motor control circuit receives the enabling signal to drive the automobile electronic steering column lock to be unlocked or locked. The automobile electronic steering column lock control system and the method adopt a non-contact interactive input mode, a driver can input an instruction to control the operation of an electronic device on an automobile without contacting a control button, the intelligent degree is high, and the control efficiency of the driver is also improved.

Description

Automobile electronic steering column lock control system and method
Technical Field
The invention relates to the field of automobile electronic control systems, in particular to an automobile electronic steering column lock control system and method.
Background
An electronic steering column lock of an automobile is a subsystem of an automobile entering system and is arranged on a steering column of an automobile steering wheel. When the electronic steering column lock is used, unlocking is triggered through a signal of a one-key starting button, an unlocking signal is sent to an automobile through a CAN bus after unlocking, and an engine starting system of the automobile CAN start an engine after receiving the unlocking signal of the electronic steering column lock. When the automobile is not used, the electronic steering column lock can automatically lock the steering column of the steering wheel, so that the automobile cannot be used, and the automobile is prevented from being stolen.
However, the existing electronic steering column lock of the automobile is triggered by a signal of a contact one-key starting button, a driver can input an instruction to control the operation of an electronic device on the automobile by contacting a control button, the intelligent degree is low, and the control efficiency of the driver is not high.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides an automobile electronic steering column lock control system and method.
In a first aspect, an embodiment of the present invention provides an electronic steering column lock control system for an automobile, including: a trigger system, comprising: the device comprises a display device, a recognition device and a central processing module; the display device is arranged above the driving seat and used for displaying the control options on a windshield in front of the automobile; the recognition device is arranged in front of the driving seat and used for monitoring the behavior of the driver; the central processing module is used for receiving the behavior of the driver sent by the identification module in real time, matching the behavior of the driver with a preset behavior pattern and generating an automobile ignition signal according to a matching result; the main controller is used for receiving the automobile ignition signal of the central processing module and generating an enabling signal according to the automobile ignition signal; and the motor control circuit receives the enabling signal to drive the automobile electronic steering column lock to be unlocked or locked.
Furthermore, the recognition device is a gesture recognition module and/or an eye recognition module, and the gesture recognition module is used for acquiring gestures of the driver; the eye recognition module is used for collecting the rotation angle of a eyeball of a driver; the central processing module is used for receiving the gestures and the eyeball rotation angles of the driver sent by the gesture recognition module and the eye recognition module in real time, matching the gestures and the eyeball rotation angles with the gestures and the eyeball rotation modes of the driver preset by the central processing module, and then generating an automobile ignition signal according to the matching result.
Further, the gesture recognition module is used for acquiring a group of continuous gesture images in a preset space range and extracting palm key points of the gesture images; the preset space range is a space range corresponding to the display image of the display device; the continuous gesture images comprise a plurality of frames of continuous images, and the number of frames of the gesture images acquired each time is the same.
Further, the gesture image is a depth image.
Further, the central processing module includes: the device comprises a determining module and a matching module, wherein the determining module is used for determining preset type gesture model data based on the palm key points; the matching module is used for matching the gesture model data with the preset behavior mode and generating an automobile ignition signal according to a matching result.
Further, the motor control circuit is provided with a driving motor and a driving switch, the driving motor is electrically connected to a power supply of the automobile, and the driving motor drives the electronic steering column lock of the automobile to rotate so as to unlock or lock.
Further, the motor control circuit is an H-bridge drive circuit.
In a second aspect, an embodiment of the present invention provides a control method for an automotive electronic steering column lock control system, including the following steps:
step 1: an automobile operator sends an automobile ignition signal to the main controller through a trigger system;
step 2: the main controller sends an enable signal to the motor control circuit after receiving the automobile ignition signal;
and step 3: the motor control circuit receives the enabling signal to drive the automobile electronic steering column lock to be unlocked or locked.
The control system and the control method for the electronic steering column lock of the automobile provided by the embodiment of the invention adopt a non-contact interactive input mode, a driver can input an instruction to control the operation of an electronic device on the automobile without contacting a control button, the intelligent degree is high, and the control efficiency of the driver is also improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of an automotive electronic steering column lock control system provided by an embodiment of the present invention;
FIG. 2 is a flowchart of a control method of an electronic steering column lock control system for an automobile according to an embodiment of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, but 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.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1, an embodiment of the present invention provides an electronic steering column lock control system for an automobile, including: trigger system, motor control circuit and main control unit. The motor control circuit is used for driving the electronic steering column lock of the automobile to be unlocked or locked; the main controller is used for receiving an automobile ignition signal, sending an enabling signal to the motor control circuit according to the automobile ignition signal so as to drive the motor to unlock or lock the automobile electronic steering column lock, and feeding back an unlocking signal.
The triggering system comprises: display device, recognition device and central processing module. The display device is arranged above the driving seat and used for displaying at least one control option of the main controller on a windshield in front of a driving seat of the automobile. The image on the windshield can be superimposed on the scene in front of the driver, and the sight of the driver is not affected. Thus, the sight line of the driver can easily select and control the operation of different electronic devices without moving.
The recognition device is arranged in front of the driving seat and used for monitoring the behavior of the driver.
The central processing module is used for receiving the behavior of the driver sent by the identification module in real time, matching the behavior of the driver with a preset behavior pattern, and then generating a main automobile ignition signal according to a matching result.
In one embodiment, the recognition device is a gesture recognition module and/or an eye recognition module, and the gesture recognition module is used for acquiring gestures of a driver; the eye recognition module is used for collecting the rotation angle of the eyeball of the driver. The central processing module is used for receiving the driver gestures and the eyeball rotation angles sent by the gesture recognition module and the eye recognition module in real time, matching the driver gestures and the eyeball rotation angles with the driver gestures and the eyeball rotation modes preset by the central processing module, and then generating an automobile ignition signal according to the matching result.
In one embodiment, the gesture recognition module is configured to collect a group of continuous gesture images within a preset spatial range, and extract a palm key point of the gesture image; the preset spatial range is a spatial range corresponding to an image displayed by the display device. The continuous gesture images comprise a plurality of frames of continuous images, and the number of frames of the gesture images acquired each time is the same. The acquired gesture image may be a depth image, wherein each pixel is depth data representing the distance of the object from the imaging device. And extracting palm key points in each frame of gesture image. The extraction of the palm key points can be realized by related techniques, as can be understood by those skilled in the art, for example, the extraction of the palm key points can be realized by a deep learning model or a random forest algorithm. The palm key point may be a palm joint point or other points besides the palm joint, or a combination of the two. The number of the palm key points can be set according to actual experience. The central processing module includes: the determining module is used for determining preset type gesture model data based on the palm key points; the matching module is used for matching the gesture model data with the preset behavior mode and generating an automobile ignition signal according to a matching result (determining whether to control the main controller to perform behavior reaction according to the matching result). As shown in fig. 2, the acquisition of the gesture recognition module includes the following steps:
step 11: a spatial coordinate system is established, the spatial coordinate system including an X-axis, a Y-axis, and a Z-axis.
In one embodiment, the spatial coordinate system is a coordinate reference system relative to the display device displaying the image itself, i.e., the display screen of the display device displaying the image is in a plane consisting of the X-axis and the Y-axis.
Step 12: and determining a first variable of the palm key point between the adjacent gesture images according to the coordinates of the palm key point of each frame of gesture image in a space coordinate system, wherein the first variable is the moving distance of the palm key point between the adjacent gesture images along the Z-axis direction.
In one embodiment, the original user click touch operation is to touch the display screen with a finger and then lift the finger, so that the corresponding driver gesture operation may be to extend a finger in the Z-axis direction and move back and forth one or more times in the Z-axis direction, i.e., move one or more times perpendicular to the plane formed by the X-axis and the Y-axis (i.e., the plane of the display screen). In addition, the original long-time pressing touch operation of the user is to touch the display screen with one finger and keep the display screen still, so that the corresponding gesture operation of the driver can be to stretch one finger, move the finger along the Z-axis direction, keep the finger still for a certain time interval, namely move the finger perpendicular to the plane formed by the X-axis and the Y-axis (namely the plane of the display screen), and keep the finger still for a certain time interval.
Aiming at the two gesture operations of the driver, the method is characterized in that fingers move along the Z-axis direction, only the fingers are operated by clicking to move all the time, and the fingers are kept still after moving for a certain distance in the long-time pressing operation. Therefore, the display device displays the images, and the moving distance of the palm key point between the adjacent gesture images along the Z-axis direction can be calculated.
Step 13: a first variable is determined as a first kind of gesture model data.
As can be seen from the above step 202, the first type of gesture model data composed of the first variables includes at least one moving distance array. For example, the acquired gesture image is 10 frames, and the gesture model data includes 9 movement distance arrays. And the first category of gesture model data may include two types of driver gesture operations: click and long press. It will be understood by those skilled in the art that the first kind of gesture model data is not limited to only click and long-press touch operations, but may also include other touch operations, such as key-press operations, and the application is not listed here. In an exemplary scenario, for gesture model data in which the gesture operation of the driver is a long press, as can be seen from the characteristic that the finger remains stationary after moving for a certain distance, each element in the last several moving distance arrays in the gesture model data should be 0. For the gesture model data of which the gesture operation of the driver is clicking, the characteristic that the finger moves for one time or more times is known, and each element in each moving distance array in the gesture model data should have a numerical value. In this embodiment, the display device displays an image, determines a moving distance (first variable) of a palm key point between adjacent gesture images along the Z-axis direction according to coordinates of the palm key point of each gesture image in the spatial coordinate system, and determines the first variable as gesture model data of a first kind. According to the gesture model data processing method and device, the first variable along the Z-axis direction is used as the gesture model data of the first kind, so that clicking and long pressing in the gesture operation of the driver can be distinguished.
According to the configuration, a driver can input a corresponding instruction by only adopting gestures or eyes when driving, and the electronic steering column lock on the automobile can be controlled to be unlocked or locked.
The motor control circuit is used for driving the automobile electronic steering column lock to unlock or lock.
The motor control circuit is provided with a driving motor and at least one driving switch, the driving motor is electrically connected to a power supply of the automobile, and when the driving switch is closed, the driving motor drives the electronic steering column lock of the automobile to rotate so as to unlock or lock.
The main controller is used for receiving an automobile ignition signal of the central processing module and sending an enabling signal to the motor control circuit according to the automobile ignition signal.
In one embodiment, the motor control circuit is an H-bridge drive circuit.
The main controller is used for receiving an automobile ignition signal, sending an enabling signal to the motor control circuit according to the automobile ignition signal so as to drive the motor to unlock or lock the automobile electronic steering column lock, and feeding back an unlocking signal. Specifically, when an automobile operator sends an automobile ignition signal to the main controller through a trigger system, and when the main controller receives the automobile ignition signal, the main controller sends an enable signal to a motor control circuit; the motor control circuit receives the enabling signal to drive the automobile electronic steering column lock to be unlocked or locked.
Referring to fig. 2, the control method of the electronic steering column lock control system of the present invention includes the following steps:
step 1: an automobile operator sends an automobile ignition signal to the main controller through a trigger system;
step 2: the main controller sends an enable signal to the motor control circuit after receiving the automobile ignition signal;
and step 3: the motor control circuit receives the enabling signal to drive the automobile electronic steering column lock to be unlocked or locked.
In summary, the system and the method for controlling the electronic steering column lock of the automobile provided by the embodiment of the invention adopt a non-contact interactive input mode, so that a driver can input an instruction to control the operation of the electronic device on the automobile without contacting a control button, the intelligent degree is high, and the control efficiency of the driver is also improved.
The above-described embodiments of the apparatus are merely illustrative, and 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 modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: 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; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. An automotive electronic steering column lock control system, comprising:
a trigger system, comprising: the device comprises a display device, a recognition device and a central processing module; the display device is arranged above the driving seat and used for displaying the control options on a windshield in front of the automobile; the recognition device is arranged in front of the driving seat and used for monitoring the behavior of the driver; the central processing module is used for receiving the behavior of the driver sent by the identification module in real time, matching the behavior of the driver with a preset behavior pattern and generating an automobile ignition signal according to a matching result;
the main controller is used for receiving the automobile ignition signal of the central processing module and generating an enabling signal according to the automobile ignition signal; and
and the motor control circuit receives the enabling signal to drive the automobile electronic steering column lock to be unlocked or locked.
2. The automotive electronic steering column lock control system according to claim 1, characterized in that the recognition device is a gesture recognition module and/or an eye recognition module, the gesture recognition module being configured to collect a gesture of a driver; the eye recognition module is used for collecting the rotation angle of a eyeball of a driver; the central processing module is used for receiving the gestures and the eyeball rotation angles of the driver sent by the gesture recognition module and the eye recognition module in real time, matching the gestures and the eyeball rotation angles with the gestures and the eyeball rotation modes of the driver preset by the central processing module, and then generating an automobile ignition signal according to the matching result.
3. The automotive electronic steering column lock control system according to claim 1, wherein the gesture recognition module is configured to collect a group of continuous gesture images within a preset spatial range, and extract a palm key point of the gesture images; the preset space range is a space range corresponding to the display image of the display device; the continuous gesture images comprise a plurality of frames of continuous images, and the number of frames of the gesture images acquired each time is the same.
4. The automotive electronic steering column lock control system of claim 3, wherein the gesture image is a depth image.
5. The automotive electronic steering column lock control system of claim 4, wherein the central processing module comprises: the device comprises a determining module and a matching module, wherein the determining module is used for determining preset type gesture model data based on the palm key points; the matching module is used for matching the gesture model data with the preset behavior mode and generating an automobile ignition signal according to a matching result.
6. The vehicle electric steering column lock control system of claim 1, wherein the motor control circuit has a driving motor and a driving switch, the driving motor is electrically connected to a power supply of the vehicle, and the driving motor drives the vehicle electric steering column lock to rotate for unlocking or locking.
7. The automotive electronic steering column lock control system of claim 1, wherein the motor control circuit is an H-bridge drive circuit.
8. A control method of an automobile electronic steering column lock control system is characterized by comprising the following steps:
step 1: an automobile operator sends an automobile ignition signal to the main controller through a trigger system;
step 2: the main controller sends an enable signal to the motor control circuit after receiving the automobile ignition signal;
and step 3: the motor control circuit receives the enabling signal to drive the automobile electronic steering column lock to be unlocked or locked.
CN201911378587.9A 2019-12-27 2019-12-27 Automobile electronic steering column lock control system and method Pending CN110962797A (en)

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Application Number Priority Date Filing Date Title
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Application publication date: 20200407