CN115095253B - Back door opening method, device, equipment and storage medium - Google Patents
Back door opening method, device, equipment and storage medium Download PDFInfo
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- CN115095253B CN115095253B CN202210672666.6A CN202210672666A CN115095253B CN 115095253 B CN115095253 B CN 115095253B CN 202210672666 A CN202210672666 A CN 202210672666A CN 115095253 B CN115095253 B CN 115095253B
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000009471 action Effects 0.000 claims abstract description 33
- 238000004590 computer program Methods 0.000 claims description 14
- 230000015654 memory Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/77—Power-operated mechanisms for wings with automatic actuation using wireless control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/531—Doors
- E05Y2900/532—Back doors or end doors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/548—Trunk lids
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention provides a back door opening method, a device, equipment and a storage medium, wherein the method comprises the following steps: receiving a driving signal sent by an intelligent key, and driving an ultrasonic sensor to emit an ultrasonic signal towards the tail direction, wherein the ultrasonic sensor is arranged at the tail; acquiring distance data between a target object and an ultrasonic sensor according to echo signals received by the ultrasonic sensor, and driving a projection device to project a guiding cursor to a predetermined range area at a predetermined projection frequency based on the distance data; and when the ultrasonic sensor detects that the target object is positioned in the guiding cursor range, detecting whether the target object executes a preset action, and if so, controlling the back door to be opened. The method adjusts the projection frequency of the projection device for projecting the guiding cursor outwards based on the distance change between the user and the back door so as to guide the user to move to the guiding cursor, thereby being convenient for detecting whether the user executes the preset action or not and opening the back door.
Description
Technical Field
The invention relates to the technical field of vehicle automation control, in particular to a back door opening method, a back door opening device, electronic equipment and a nonvolatile storage medium.
Background
The trunk is popular with a large number of users because of its large storage space, but the door (back door) of the trunk has a large volume and a large weight, and if it is opened manually, it is difficult to open it. Based on this, in order to improve the convenience of opening the back door, the back door is gradually developed to be opened electrically from traditional manual opening, and the problem that the back door is difficult to open is solved by remote control of a remote controller or a mode of controlling the door opening by a central control system.
When a user carries a large number of articles with both hands, the user is difficult to operate the remote controller or the automobile central control system, so that the user needs to put down the articles, and the back door is controlled to be opened through the remote controller or the central control system, so that the use experience of the user is not facilitated. Therefore, an inner worker controls the back door to be opened by detecting the kicking action of the user through arranging the ultrasonic sensor at the tail part of the vehicle, commonly called kicking the door, and the use convenience of the back door is greatly improved. However, the signal coverage of the ultrasonic sensor is limited, the user does not know the size of the signal coverage of the ultrasonic, and when the user is out of the coverage of the ultrasonic signal or at a position where the ultrasonic signal is weak, the user may possibly make a kicking action, but the kicking action is not recognized by the ultrasonic sensor, so that the embarrassment that the back door is not opened occurs, and the use experience of the user is affected.
Disclosure of Invention
It is therefore a primary objective of the present invention to solve at least one of the above problems and provide a back door opening method, device, apparatus and storage medium.
In order to meet the purposes of the invention, the invention adopts the following technical scheme:
One of the objects of the present invention is to provide a back door opening method, comprising the steps of:
Receiving a driving signal sent by an intelligent key, and driving an ultrasonic sensor to emit an ultrasonic signal towards the tail direction, wherein the ultrasonic sensor is arranged at the tail;
Acquiring distance data between a target object and an ultrasonic sensor according to echo signals received by the ultrasonic sensor, and driving a projection device to project a guiding cursor to a predetermined range area at a predetermined projection frequency based on the distance data;
and when the ultrasonic sensor detects that the target object is positioned in the guiding cursor range, detecting whether the target object executes a preset action, and if so, controlling the back door to be opened.
Further, the step of driving the projection device to project the guiding cursor to the predetermined range area at the predetermined projection frequency based on the distance data comprises the following specific steps:
when the distance data is detected to be located in a first distance range, driving the projection equipment to project and guide a cursor outwards at a first projection frequency;
when the distance data is detected to be located in a second distance range, the projection device is driven to project the guiding cursor outwards at a second projection frequency, the second projection frequency is larger than the first projection frequency, and the second distance range is smaller than the first distance range.
Further, after the step of detecting that the distance data is located in the second distance range, the method further includes the steps of:
And when the distance data is detected to be positioned in a third distance range, driving the projection equipment to project the guiding cursor outwards at a third projection frequency, wherein the third projection frequency is larger than the second projection frequency, and the third distance range is smaller than the second distance range.
Further, the step of driving the projection device to project the guiding cursor to the predetermined range area at the predetermined projection frequency based on the distance data comprises the following specific steps:
Driving the projection equipment to project a guiding cursor into the area corresponding to the first distance range;
when the target object is detected to be positioned in the area corresponding to the first distance range, the projection device is driven to project a guiding cursor in the area corresponding to the second distance range, and the second distance range is smaller than the first distance range.
Further, after the step of detecting that the target object is located in the area corresponding to the first distance range, the method further includes the following steps:
When the target object is detected to be positioned in the area corresponding to the second distance range, the projection device is driven to project a guiding cursor into the area corresponding to the third distance range, and the third distance range is smaller than the second distance range.
Specifically, when the target object is detected to be in the area corresponding to the second distance range, the projection equipment is driven to stop projecting the guiding cursor to the area corresponding to the first distance range;
when the target object is detected to be in the area corresponding to the third distance range, the projection device is driven to stop projecting the guiding cursor to the area corresponding to the second distance range.
Further, detecting whether the target object executes a predetermined action, and if so, controlling the back door to be opened includes the following specific steps:
According to the echo signals received by the ultrasonic sensor, if the first gesture action executed by the target object is matched with the first gesture track, continuing to execute the gesture action;
and if the second gesture motion executed by the target object is matched with the second gesture track, judging that the target object executes the preset motion.
In accordance with one of the objects of the present invention, there is provided a back door opening device comprising:
the receiving unit is used for receiving the driving signal sent by the intelligent key and driving the ultrasonic sensor to emit an ultrasonic signal towards the tail direction, and the ultrasonic sensor is arranged at the tail;
the projection unit is used for acquiring distance data between the target object and the tail of the vehicle according to the echo signals received by the ultrasonic sensor, and driving the projection equipment to project a guiding cursor into a preset range area at a preset projection frequency based on the distance data;
and the detection unit is used for detecting whether the target object executes a preset action or not when the ultrasonic sensor detects that the target object is positioned in the guiding cursor range, and controlling the back door to be opened if the preset action is executed.
An electronic device adapted to one of the objects of the present invention comprises a central processing unit and a memory, said central processing unit being adapted to invoke the steps of executing a computer program stored in said memory for performing the back door opening method according to any of the previous objects.
A non-volatile storage medium is provided in accordance with one of the objects of the present invention, which stores a computer program implemented by the back door opening method according to any one of the previous objects, and the computer program executes the steps included in the method when being called and executed by a computer.
Compared with the prior art, the invention has the following advantages:
According to the back door opening method, the projection device is controlled to project the guiding cursor outwards, the projection frequency of the guiding cursor projected by the projection device is changed based on the distance data between the target object and the back door, the target object is guided to move to the position where the guiding cursor is located, whether the target object executes preset actions or not is detected at the position where the ultrasonic signal is strong through the ultrasonic sensor, and the back door is opened.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a schematic circuit diagram of an automotive device according to the present invention.
Fig. 2 is a flow chart of the back door opening method of the present invention.
Fig. 3 is a flowchart of step S120 of the back door opening method of the present invention.
Fig. 4 is a flowchart illustrating an embodiment of step S120 of the back door opening method of the present invention.
Fig. 5 is a flowchart of step S30 of the back door opening method of the present invention.
Fig. 6 is a schematic diagram of signal coverage of an ultrasonic sensor according to the present invention.
Fig. 7 is a schematic view of a kick motion trajectory characteristic curve according to the present invention.
Fig. 8 is a schematic structural view of the back door opening device of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The back door opening method provided by the invention can guide the user into the guiding cursor by projecting the guiding cursor, and can change the projection frequency of the guiding cursor to guide the user to travel to the area where the guiding cursor is located, so that the ultrasonic sensor can conveniently detect whether the user executes the preset action or not and open the back door when the user is in the range of the guiding cursor.
The back door opening method of the invention is applied to an automobile, is executed based on the following automobile equipment, and comprises the following steps in combination with fig. 1: control unit 100, communication unit 110, smart key 120, ultrasonic sensor 130, projection device 140, and back door 150.
The control unit is used for the operation of the ultrasonic sensor 130, the communication unit 110, the back door 150 and the projection device 140, and the control unit 100 can perform data communication with the smart key 120 through the communication unit 110. In one embodiment, the control unit 100 is a central control system of an automobile.
The smart key 120 is independently provided to perform data communication with the control unit 100 by transmitting a signal to the communication unit 110. When the smart key 120 is disposed at a certain distance outside the vehicle, the smart key 120 may transmit a signal to perform data communication with the control unit 100 via the communication unit 110, or the smart key 120 may receive a signal transmitted from the control unit 100 via the communication unit 110.
Specifically, the ultrasonic sensor 130 is disposed at the tail of the vehicle, and the transmitting probe of the ultrasonic sensor 130 for transmitting the ultrasonic signal is disposed downward, so that the ultrasonic sensor 130 covers the ultrasonic signal obliquely downward toward the rear of the vehicle.
In one embodiment, referring to fig. 6, two ultrasonic sensors 130 are disposed on the tail, the two ultrasonic sensors 130 are disposed on the left and right sides of the tail, and the signal coverage areas of the two ultrasonic sensors 130 are partially overlapped to form a signal overlapping area. And one of the two ultrasonic sensors 130 is used for transmitting an ultrasonic signal, and the other is used for receiving an echo signal returned after the ultrasonic signal collides with an object.
The projection device 140 is disposed at the tail, and the projection device 140 is disposed in a declined manner, such that the projection device 140 projects the guiding cursor to the rear obliquely downward side of the tail, for example, the projection device 140 projects the guiding cursor to the ground obliquely downward side of the tail. The projection device 140 may change the projection frequency of the projection guide cursor under the control of the control unit 100. In one embodiment, the projection device 140 is a projector or a projector lamp.
In an exemplary embodiment of the present invention, in conjunction with fig. 2, the back door opening method includes the following specific steps:
Step S110, receiving a driving signal sent by the intelligent key, and driving an ultrasonic sensor to emit an ultrasonic signal towards the tail direction, wherein the ultrasonic sensor is arranged at the tail:
When a user needs to open a back door of an automobile and opens a trunk, the user carries the intelligent key to move to the tail of the automobile, the intelligent key externally transmits a driving signal, the communication unit receives the driving signal transmitted by the intelligent key and outputs the driving signal to the control unit, and the control unit drives the ultrasonic sensor arranged at the tail to work based on the driving signal, so that the ultrasonic sensor transmits ultrasonic signals to the tail direction.
Step S120, acquiring distance data between the target object and the ultrasonic sensor according to the echo signal received by the ultrasonic sensor, and driving the projection device to project a guiding cursor to a predetermined range area at a predetermined projection frequency based on the distance data:
When the ultrasonic sensor emits an ultrasonic signal to the outside, the ultrasonic signal collides with the target object, which is the user in this embodiment, and returns an echo signal. After the ultrasonic signal collides with the user, the echo signal is returned, the ultrasonic sensor receives the echo signal and outputs the echo signal to the control unit, and the control unit calculates distance data between the ultrasonic sensor and the user based on the time difference between the transmitted ultrasonic signal and the received echo signal and the transmission speed of the ultrasonic signal.
When the control unit acquires the distance data between the ultrasonic sensor and the user, the control unit drives the projection device to project a guiding cursor to the ground below the rear incline of the vehicle tail when the distance data is within a preset distance range. And the control unit adjusts the projection frequency of the projection device for projecting the guiding cursor based on the acquired distance data so as to guide the user to move into the guiding cursor, and detects whether the user executes the preset action or not and opens the back door.
The ultrasonic signal emitted by the ultrasonic sensor becomes far along with the emission distance, the intensity of the ultrasonic signal becomes smaller gradually, and the ultrasonic signal emitted by the ultrasonic sensor only covers the signal coverage area of the ultrasonic signal, so that the intensity of the covered ultrasonic signal is weaker as the signal coverage area is far away from the ultrasonic sensor.
In this embodiment, referring to fig. 6, the distance data between the ultrasonic sensor and the user is sequentially divided into a first distance range, a second distance range and a third distance range according to the distance data, where the first distance range corresponds to the signal coverage area and the second distance range corresponds to the signal coverage area and the third distance range corresponds to the signal coverage area.
The control unit controls the projection device to project the guiding cursor into a third distance area, and in the third distance area, ultrasonic signals emitted by the ultrasonic sensor have better intensity, so that whether a user standing in the guiding cursor executes a preset action or not can be well detected.
The division of the signal coverage area may be further subdivided according to different embodiments, and the location of the guiding cursor disposed in the signal coverage area is not limited herein. For example, in one embodiment, one or more distance regions are further provided between the first distance region and the second distance region, or no further distance regions are provided, and the guiding cursor is provided in the second distance region.
Specifically, in conjunction with fig. 3, the step S120 further includes the following steps:
Step S121, when the distance data is detected to be located in the first distance range, the projection device is driven to project the guiding cursor to the outside at the first projection frequency:
Generally, when a user approaches to a guiding cursor disposed in a third distance area, the user needs to pass through the first distance area, the second distance area and the third distance area in order, and then the user can move to the area where the guiding cursor is located. In order to facilitate the user to guide and move to the guiding cursor, the control unit obtains distance data between the user and the ultrasonic sensor based on the ultrasonic signal transmitted by the ultrasonic sensor and the echo signal received by the ultrasonic sensor.
When the distance data is in the first distance range, the control unit judges that the user is located in the first distance range, and the control unit controls the projection device to project a guiding cursor into the third distance range at the first projection frequency.
Step S122, when the distance data is detected to be located in the second distance range, the projection device is driven to project the guiding cursor outwards at the second projection frequency, the second projection frequency is greater than the first projection frequency, and the second distance range is smaller than the first distance range:
When the control unit detects that the distance data between the user and the ultrasonic sensor is located in a second distance range based on the ultrasonic sensor, the control unit determines that the user is located in the second distance range, and controls the projection device to project a guiding cursor into a third distance range at a second projection frequency, wherein the second projection frequency is larger than the first projection frequency, for example, the first projection frequency is 20 times/min, and the second projection frequency is 30 times/min. Thus, when the user is located in different distance areas, the control unit controls the projection device to project the guiding cursor at different projection frequencies based on the distance from the ultrasonic sensor so as to guide the user to move to the guiding cursor.
In one embodiment, the guiding cursor is arranged in the second distance area, and when the control unit detects that the user moves in the second distance area through the ultrasonic sensor, the projection device is controlled to project the guiding cursor at a second detection frequency; when the control unit detects that the user moves to the guiding cursor through the ultrasonic sensor, the guiding cursor is projected at a third projection frequency, and the third projection frequency is larger than the second projection frequency. Preferably, the third projection frequency is greater than or equal to 60 times/min.
Step S123, when the distance data is detected to be within the third distance range, the projection device is driven to project the guiding cursor to the outside at a third projection frequency, the third projection frequency is greater than the second projection frequency, and the third distance range is smaller than the second distance range:
When the control unit detects that the distance data between the user and the ultrasonic sensor is located in a third distance range through the ultrasonic sensor, the control unit judges that the user is located in the third distance range, and controls the projection device to project a guiding cursor into the third distance range at a third projection frequency, wherein the third projection frequency is larger than the second projection frequency. For example, the third projection frequency is greater than or equal to 60 times/min, or approximately equal to the flicker frequency of an incandescent lamp when it is normally on.
When the control unit detects that the user moves to the guiding cursor arranged in the third distance area through the ultrasonic sensor, the control unit can control the projection device to project the guiding cursor outwards at a third projection frequency or a fourth projection frequency, and the fourth projection frequency is larger than the third projection frequency.
Therefore, the projection frequency of the projection device when the user is in different distance areas is changed, so that the user is guided to move to the guide cursor through the first distance area, the second distance area and the third distance area, and the indication is given to the user through the change of the projection frequency, so that the user can be guided to move to the guide cursor.
In one embodiment, step S120 further includes steps in parallel with steps S121-S123, and in conjunction with fig. 4, the specific steps are as follows:
Step S124, driving the projection device to project a guiding cursor in the area corresponding to the first distance range:
when the control unit detects that the user enters the signal coverage area but does not enter the first distance area based on the ultrasonic sensor, the control unit controls the projection device to project a first guiding cursor into the first distance area, wherein the first guiding cursor is used for guiding the user to enter the first distance area.
Step S125, when it is detected that the target object is located in the area corresponding to the first distance range, the projection device is driven to project a guiding cursor into the area corresponding to the second distance range, where the second distance range is smaller than the first distance range:
when the control unit detects that the user enters the first distance area based on the ultrasonic sensor, the control unit controls the projection device to project a second guiding cursor into a second distance area, and the second guiding cursor is used for guiding the user to enter the second distance area.
Step S126, when it is detected that the target object is located in the area corresponding to the second distance range, the projection device is driven to project a guiding cursor into the area corresponding to a third distance range, where the third distance range is smaller than the second distance range:
When the control unit detects that the user enters the second distance area based on the ultrasonic sensor, the control unit controls the projection device to project a third guiding cursor into a third distance area, wherein the third guiding cursor is the same as the guiding cursor in the steps S121-S123, and is used for guiding the user to enter the third distance area and move to the third guiding cursor.
In one embodiment, the control unit controls the projection device to project the first guide cursor at a first projection frequency, to project the second guide cursor at a second projection frequency, and to project the third guide cursor at a third projection frequency.
In one embodiment, the projection device may simultaneously project the first guide cursor, the second guide cursor and the third guide cursor, so that a guide path is formed between the first guide cursor, the second guide cursor and the third guide cursor, and the user is guided to move to the third guide cursor.
In one embodiment, when the control unit detects that the user enters the second distance area based on the ultrasonic sensor, the control unit drives the projection unit to stop projecting the first guiding cursor into the first distance area. And when the control unit detects that the user enters the third distance area based on the ultrasonic sensor, the control unit drives the projection device to stop projecting the second guiding cursor into the second distance area.
Step S130, when the ultrasonic wave detects that the target object is located within the guiding cursor range, detecting whether the target object performs a predetermined action, if so, controlling the back door to open:
When the control unit detects that the user is positioned at the guiding cursor in the third distance area based on the ultrasonic sensor, the control unit detects whether the user executes a preset action based on the ultrasonic sensor, and if the control unit detects that the user executes the preset action based on the ultrasonic sensor, the control unit drives the back door to open.
In an exemplary embodiment of the invention, the predetermined action is a kick action. In one embodiment, the predetermined action may also be a swinging action, and the predetermined action is not limited in the present invention.
Referring to fig. 5, step S130 further includes the following specific steps:
Step S131, according to the echo signal received by the ultrasonic sensor, if the first gesture performed by the target object matches the first gesture track, continuing to perform:
The control unit is used for judging whether the first gesture motion is matched with a preset first gesture track or not according to the echo signals received by the ultrasonic sensor and based on the echo signals to fit the first gesture motion of the user.
In this embodiment, the first gesture is a kick-out motion; the first gesture track is a motion track continuously approaching the ultrasonic sensor.
If the control unit acquires a first gesture motion of the user based on the ultrasonic sensor and the control unit judges that the first gesture motion is matched with the first gesture track, the control unit drives the ultrasonic sensor to detect the next gesture motion of the user, otherwise, the control unit detects whether the user executes the first gesture motion again based on the ultrasonic sensor.
Step S132, if the second gesture performed by the target object matches the second gesture track, determining that the target object performs the predetermined action:
The control unit is used for judging whether the second gesture motion is matched with a preset second gesture track or not according to echo signals received by the ultrasonic sensor and based on the echo signals to fit the second gesture motion of the user.
In this embodiment, the second gesture motion is a foot recovery motion, specifically, a recovery motion after the user kicks out the leg; the second gesture track is a motion track far away from the ultrasonic sensor on the basis of the first gesture track. Thus, referring to fig. 7, the user's kick motion is decomposed into a first gesture motion and a second gesture motion, and a predetermined motion matched with the kick motion is decomposed into a first gesture track and a second gesture track.
If the control unit acquires a second gesture of the user based on the ultrasonic sensor and the control unit judges that the second gesture is matched with the second gesture track, the control unit judges that the user executes the preset action and drives the back door to open.
Further, by performing the steps of the method disclosed above, a back door opening device of the present invention may be constructed, according to which, in an exemplary embodiment, in conjunction with fig. 8, the device includes:
The receiving unit 600 receives a driving signal sent by the intelligent key, and drives the ultrasonic sensor to emit an ultrasonic signal towards the tail direction, wherein the ultrasonic sensor is arranged at the tail;
A projection unit 700 for acquiring distance data between the target object and the tail of the vehicle according to the echo signal received by the ultrasonic sensor, and driving the projection device to project a guiding cursor into a predetermined range area at a predetermined projection frequency based on the distance data;
And a detection unit 800 for detecting whether the target object executes a predetermined action when the ultrasonic sensor detects that the target object is located within the guiding cursor range, and controlling the back door to open if the target object is executed.
Further, to facilitate the execution of the present application, the present application provides an electronic device, including a central processing unit and a memory, where the central processing unit is configured to invoke a computer program stored in the memory to execute the steps of the back door opening method in the foregoing embodiments.
It can be seen that the memory is preferably a non-volatile storage medium, and the method is implemented as a computer program, and the computer program is installed in an electronic device such as a mobile phone, so that relevant program codes and data are stored in the non-volatile storage medium of the electronic device, and the program is further executed by a central processing unit of the electronic device, and is transferred from the non-volatile storage medium to a memory for operation, thereby achieving the desired purpose of the application. It will thus be appreciated that in one embodiment of the present application, there may also be provided a non-volatile storage medium in which a computer program implemented in accordance with the various embodiments of the back door opening method is stored, which computer program, when being invoked by a computer to run, performs the steps comprised by the method.
It should be understood by those skilled in the art that a corresponding server or terminal device may be implemented accordingly based on the methods disclosed in the above embodiments.
In summary, the back door opening method of the present invention adjusts the projection frequency of the projection device projecting the guiding cursor outward based on the distance change between the user and the back door, so as to guide the user to move to the guiding cursor, so as to detect whether the user performs the predetermined action, and open the back door.
Those skilled in the art will appreciate that the present disclosure is directed to apparatus for performing one or more of the operations, methods described herein. These devices may be specially designed and constructed for the required purposes, or may comprise known devices in general purpose computers. These devices have computer programs stored within their memories that are selectively activated or reconfigured. Such a computer program may be stored in a device (e.g., a computer) readable medium or any type of medium suitable for storing electronic instructions and respectively coupled to a bus, including, but not limited to, any type of disk (including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks), ROMs (Read-Only memories), RAMs (Random Access Memory, random access memories), EPROMs (Erasable Programmable Read-Only memories), EEPROMs (ELECTRICALLY ERASABLE PROGRAMMABLE READ-Only memories), flash memories, magnetic cards, or optical cards. That is, a readable medium includes any medium that stores or transmits information in a form readable by a device (e.g., a computer).
It will be understood by those within the art that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. Those skilled in the art will appreciate that the computer program instructions can be implemented in a processor of a general purpose computer, special purpose computer, or other programmable data processing method, such that the blocks of the block diagrams and/or flowchart illustration are implemented by the processor of the computer or other programmable data processing method.
Those of skill in the art will appreciate that the various operations, methods, steps in the flow, acts, schemes, and alternatives discussed in the present application may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed herein may be alternated, altered, rearranged, disassembled, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present application may also be alternated, altered, rearranged, decomposed, combined, or deleted.
The foregoing is only a partial embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.
Claims (9)
1. The back door opening method is characterized by comprising the following steps of:
Receiving a driving signal sent by an intelligent key, and driving an ultrasonic sensor to emit an ultrasonic signal towards the tail direction, wherein the ultrasonic sensor is arranged at the tail;
According to the echo signals received by the ultrasonic sensor, distance data between the target object and the ultrasonic sensor are acquired, the projection equipment is driven to project a guiding cursor to a preset range area at a preset projection frequency based on the distance data, and the method further comprises the following specific steps:
when the distance data is detected to be located in a first distance range, driving the projection equipment to project and guide a cursor outwards at a first projection frequency;
when the distance data is detected to be positioned in a second distance range, driving the projection equipment to project the guiding cursor outwards at a second projection frequency, wherein the second projection frequency is larger than the first projection frequency, and the second distance range is smaller than the first distance range;
and when the ultrasonic sensor detects that the target object is positioned in the guiding cursor range, detecting whether the target object executes a preset action, and if so, controlling the back door to be opened.
2. The back door opening method of claim 1, further comprising the steps of, after the step of detecting that the distance data is located in the second distance range:
And when the distance data is detected to be positioned in a third distance range, driving the projection equipment to project the guiding cursor outwards at a third projection frequency, wherein the third projection frequency is larger than the second projection frequency, and the third distance range is smaller than the second distance range.
3. The back door opening method according to claim 1 or 2, wherein the step of driving the projection device to project the guide cursor to the predetermined range area at the predetermined projection frequency based on the distance data comprises the steps of:
Driving the projection equipment to project a guiding cursor into the area corresponding to the first distance range;
when the target object is detected to be positioned in the area corresponding to the first distance range, the projection device is driven to project a guiding cursor in the area corresponding to the second distance range, and the second distance range is smaller than the first distance range.
4. The back door opening method of claim 3, further comprising, after the step of detecting that the target object is located in the area corresponding to the first distance range, the steps of:
When the target object is detected to be positioned in the area corresponding to the second distance range, the projection device is driven to project a guiding cursor into the area corresponding to the third distance range, and the third distance range is smaller than the second distance range.
5. The back door opening method of claim 4, wherein,
When the target object is detected to be in the area corresponding to the second distance range, driving the projection equipment to stop projecting the guiding cursor to the area corresponding to the first distance range;
when the target object is detected to be in the area corresponding to the third distance range, the projection device is driven to stop projecting the guiding cursor to the area corresponding to the second distance range.
6. The back door opening method of claim 1, wherein the step of detecting whether the target object performs a predetermined action, and if so, controlling the back door to be opened, comprises the steps of:
According to the echo signals received by the ultrasonic sensor, if the first gesture action executed by the target object is matched with the first gesture track, continuing to execute the gesture action;
and if the second gesture motion executed by the target object is matched with the second gesture track, judging that the target object executes the preset motion.
7. A back door opening device, comprising:
the receiving unit is used for receiving the driving signal sent by the intelligent key and driving the ultrasonic sensor to emit an ultrasonic signal towards the tail direction, and the ultrasonic sensor is arranged at the tail;
The projection unit is used for acquiring distance data between the target object and the tail of the vehicle according to the echo signals received by the ultrasonic sensor, and driving the projection equipment to project a guiding cursor into a preset range area at a preset projection frequency based on the distance data; when the distance data is detected to be located in a first distance range, driving the projection equipment to project and guide a cursor outwards at a first projection frequency; when the distance data is detected to be positioned in a second distance range, driving the projection equipment to project the guiding cursor outwards at a second projection frequency, wherein the second projection frequency is larger than the first projection frequency, and the second distance range is smaller than the first distance range;
and the detection unit is used for detecting whether the target object executes a preset action or not when the ultrasonic sensor detects that the target object is positioned in the guiding cursor range, and controlling the back door to be opened if the preset action is executed.
8. An electronic device comprising a central processor and a memory, wherein the central processor is configured to invoke a computer program stored in the memory to perform the steps of the back door opening method of any of claims 1 to 6.
9. A non-volatile storage medium, characterized in that it stores a computer program implemented according to the back door opening method of any one of claims 1 to 6, which when invoked by a computer, performs the steps comprised by the method.
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| CN202210672666.6A CN115095253B (en) | 2022-06-14 | 2022-06-14 | Back door opening method, device, equipment and storage medium |
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| CN202210672666.6A CN115095253B (en) | 2022-06-14 | 2022-06-14 | Back door opening method, device, equipment and storage medium |
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| CN116181188A (en) * | 2022-12-22 | 2023-05-30 | 重庆长安汽车股份有限公司 | Control method and system for opening vehicle door and vehicle |
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