CN115219982A - Vehicle key positioning method and device, vehicle and storage medium - Google Patents
Vehicle key positioning method and device, vehicle and storage medium Download PDFInfo
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- CN115219982A CN115219982A CN202210638393.3A CN202210638393A CN115219982A CN 115219982 A CN115219982 A CN 115219982A CN 202210638393 A CN202210638393 A CN 202210638393A CN 115219982 A CN115219982 A CN 115219982A
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- 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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0205—Details
- G01S5/021—Calibration, monitoring or correction
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- 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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
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- 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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0205—Details
- G01S5/0215—Interference
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Abstract
The application provides a vehicle key positioning method, a device, a vehicle and a storage medium, wherein the method is applied to the vehicle, the vehicle comprises a vehicle instrument desk, the vehicle instrument desk is provided with an instrument desk antenna, at least one correction antenna is arranged outside the vehicle instrument desk, and the method comprises the following steps: acquiring an initial position of a vehicle key; when the initial position is in a preset interference area of a vehicle instrument desk, determining the detection position of a vehicle key according to an instrument desk antenna; determining a revised position of the vehicle key based on the at least one revised antenna; the initial position is calibrated based on the detected position and the corrected position to determine a calibrated position of the vehicle key. According to the method and the device, when the initial position of the vehicle key is in the preset interference area, the initial position is calibrated according to the detection position and the correction position, the interference of the preset interference area on the key positioning result can be reduced, and the key positioning precision is improved.
Description
Technical Field
The present application relates to the field of key location technology, and more particularly, to a vehicle key location method, apparatus, vehicle, and storage medium.
Background
Along with the continuous development of vehicle technology, the function of vehicle key is more and more, and convenient, insensible trip mode is experienced for the frequency that the key was taken out and is used is less and less, when the key was lost in the car by the user carelessly, will take a long time to look for the key, also can greatly discount user's experience of using the car. Therefore, the vehicle can locate the key through the antenna in the vehicle at any time and determine the position of the key at any time.
However, with the increasing degree of electrification and intellectualization of the vehicle, electrical equipment in the vehicle is gradually increased, the electrical environment is gradually complicated, a signal interference area is easily formed in the vehicle, the positioning accuracy of the key is affected, and troubles are brought to a user.
Disclosure of Invention
In view of the above problems, the present application provides a vehicle key positioning method, device, vehicle and storage medium to improve the above problems.
In a first aspect, an embodiment of the present application provides a vehicle key positioning method, which is applied to a vehicle, where the vehicle includes a vehicle instrument desk, the vehicle instrument desk is provided with an instrument desk antenna, the vehicle instrument desk is provided with at least one correction antenna, and the method includes: acquiring an initial position of a vehicle key; when the initial position is in a preset interference area of a vehicle instrument desk, determining the detection position of a vehicle key according to an instrument desk antenna; determining a revised position of the vehicle key based on the at least one revision antenna; the initial position is calibrated based on the detected position and the corrected position to determine a calibrated position of the vehicle key.
In a second aspect, the embodiment of the present application further provides a vehicle key positioner, is applied to the vehicle, and the vehicle includes vehicle instrument desk, and vehicle instrument desk is provided with the instrument desk antenna, and vehicle instrument desk is provided with at least one correction antenna outward, and the device includes: an acquisition unit for acquiring an initial position of a vehicle key; the first determining unit is used for determining the detection position of the vehicle key according to the instrument desk antenna when the initial position is in a preset interference area of the vehicle instrument desk; a second determination unit for determining a corrected position of the vehicle key based on the at least one correction antenna; and a third determination unit for calibrating the initial position based on the detected position and the corrected position to determine a calibrated position of the vehicle key.
In a third aspect, an embodiment of the present application further provides a vehicle, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the vehicle key location method of the first aspect.
In a fourth aspect, embodiments of the present application further provide a computer-readable storage medium storing computer-executable instructions for enabling a vehicle to perform the vehicle key location method of the first aspect.
The application provides a vehicle key positioning method, a device, a vehicle and a storage medium, wherein the method is applied to the vehicle, the vehicle comprises a vehicle instrument desk, the vehicle instrument desk is provided with an instrument desk antenna, at least one correction antenna is arranged outside the vehicle instrument desk, and the method comprises the following steps: acquiring an initial position of a vehicle key; when the initial position is in a preset interference area of a vehicle instrument desk, determining the detection position of a vehicle key according to an instrument desk antenna; determining a revised position of the vehicle key based on the at least one revised antenna; the initial position is calibrated based on the detected position and the corrected position to determine a calibrated position of the vehicle key. According to the method and the device, when the initial position of the vehicle key is in the preset interference area, the initial position is calibrated according to the detection position and the correction position, the interference of the preset interference area on the key positioning result can be reduced, and the key positioning precision is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required in the description of the embodiments are briefly introduced below, and it is apparent that the drawings in the description below are only some embodiments of the present application, and not all embodiments. All other embodiments and drawings obtained by a person skilled in the art based on the embodiments of the present application without inventive step belong to the protection scope of the present invention.
Fig. 1 is a schematic view of an application scenario of a vehicle key positioning method according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a vehicle key positioning method according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart of a vehicle key positioning method according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a vehicle key positioning device according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.
Fig. 6 is a block diagram of a computer-readable storage medium 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.
With the continuous development of vehicle technology, the functions of vehicle keys are more and more, and the convenient and non-inductive travel mode experience is realized, so that the frequency of taking out the keys for use is less and less, when the keys are carelessly omitted in a vehicle by a user, the user needs to find the keys for a long time, and the vehicle using experience of the user is greatly reduced. Therefore, the vehicle can locate the key through the antenna in the vehicle at any time and determine the position of the key at any time.
However, along with the increasing degree of electrification and intellectualization of the vehicle, electrical equipment in the vehicle is gradually increased, the electrical environment is gradually complicated, a signal interference area is easily formed in the vehicle, and the signal interference area can influence the positioning precision of the key, so that the key is inaccurately positioned, and troubles are brought to users.
In order to improve the above problems, the inventor proposes a vehicle key positioning method, a device, a vehicle and a storage medium provided by the present application, wherein the method is applied to a vehicle, the vehicle comprises a vehicle instrument desk, the vehicle instrument desk is provided with an instrument desk antenna, and at least one correction antenna is arranged outside the vehicle instrument desk, the method comprises: acquiring an initial position of a vehicle key; when the initial position is in a preset interference area of a vehicle instrument desk, determining the detection position of a vehicle key according to an instrument desk antenna; determining a revised position of the vehicle key based on the at least one revision antenna; the initial position is calibrated based on the detected position and the corrected position to determine a calibrated position of the vehicle key. According to the method and the device, when the initial position of the vehicle key is in the preset interference area, the initial position is calibrated according to the detection position and the correction position, the interference of the preset interference area on the key positioning result can be reduced, and the key positioning precision is improved.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic view of an application scenario of a vehicle key positioning method according to an embodiment of the present invention. As shown in fig. 1, fig. 1 includes a vehicle 100 and a vehicle key 200, and the vehicle 100 includes a vehicle instrument desk 110, a instrument desk antenna 130, and a correction antenna 140.
In some embodiments, there is more interference due to more wiring and equipment placed on the vehicle instrument cluster 110. Alternatively, an edge area of the vehicle instrument panel 110 is set as the preset interference area 120. In other embodiments, other signal-disturbed regions of vehicle instrument panel 110 may also be set as the preset disturbance region.
In an embodiment of the present application, the vehicle 100 may acquire the initial position of the vehicle key 200 through the instrument desk antenna 130 and the at least one correction antenna 140. It is understood that, in order to improve the accuracy of the positioning, it is preferable to determine the initial position of the vehicle key 200 by the meter stand antenna 130 and the plurality of correction antennas 140.
Alternatively, the number of the meter stand antennas 130 may be one or more.
In some embodiments, the instrument desk antenna 130 and the correction antenna 140 are both low frequency antennas; however, the electrical environment in the instrument desk 110 is complex, the number of vehicle-mounted electrical components is large, the wiring harness layout is staggered, and the low-frequency signal is easily interfered, so that in the preset interference area 120 of the instrument desk, the positioning result of the vehicle key is inaccurate, and misjudgment is easy to occur, for example, the vehicle key is positioned outside the vehicle in the vehicle, or the vehicle key is positioned inside the vehicle outside the vehicle, which brings great trouble to the user.
Therefore, in the embodiment of the present application, after the initial position of the vehicle key 200 is obtained, if the initial position of the vehicle key 200 is located in the preset interference area 120, the detection position of the vehicle key 200 is determined according to the instrument desk antenna 130, and then the correction position of the vehicle key 200 is determined according to the at least one correction antenna 140, so that the initial position is calibrated according to the detection position and the correction position to determine the calibration position of the vehicle key 200, thereby reducing the interference of the preset interference area 120 on the key positioning result, and improving the key positioning accuracy.
It should be noted that the positions of the meter station antenna 130 and the correction antenna 140 in fig. 1 are only examples, the meter station antenna 130 may be disposed at any position in the meter station 110, and the correction antenna 140 may be disposed at any position in the vehicle 100 other than the meter station 110. It is understood that the positions of the desk antenna 130 and the correction antenna 140 can be selected according to experience or actual needs, and the application does not limit the positions of the desk antenna 130 and the correction antenna 140.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating a vehicle key positioning method according to an embodiment of the invention. As shown in fig. 2, the vehicle key positioning method is applied to a vehicle, the vehicle comprises a vehicle instrument desk, the vehicle instrument desk is provided with an instrument desk antenna, and at least one correction antenna is arranged outside the vehicle instrument desk, and the method comprises the following steps: step 210 to step 240.
Step 210: an initial position of a vehicle key is obtained.
In some embodiments, the initial position of the vehicle key may be determined from the instrument cluster antenna and the one or more correction antennas within the vehicle, such as by the instrument cluster antenna 130 and the one or more correction antennas 140 of fig. 1.
It can be understood that, this application can reduce the influence of the regional vehicle key location of interference of predetermineeing at instrument desk edge, and the instrument desk antenna receives the regional influence of predetermined interference more serious than correction antenna, and the low frequency interference that correction antenna received is less, consequently this application confirms the initial position of vehicle key according to instrument desk antenna and one or more correction antenna in the vehicle when the initial position of obtaining the vehicle key, can be when the influence that the instrument desk antenna received the regional interference of predetermineeing is comparatively serious, the position of vehicle key is redetermined, improve positioning accuracy.
In some embodiments, the vehicle comprises a controller and a radio frequency module for determining an initial position of the vehicle key via the instrument desk antenna and the one or more correction antennas, and step 210 comprises:
(1) And sending a positioning instruction to a vehicle key.
(2) And receiving the radio frequency signal fed back by the vehicle key.
(3) The controller sequentially drives the instrument desk antenna and the one or more correction antennas in the vehicle to generate a magnetic field at a preset frequency, a preset sequence and preset times so that the vehicle key can transmit magnetic field intensity data.
(4) After receiving the magnetic field intensity data sent by the vehicle key, the controller calculates the relative position of the vehicle key relative to the instrument desk antenna and the one or more correction antennas.
(5) The controller calculates a plurality of positions of the vehicle key in the vehicle coordinate system based on the positions of the instrument desk antenna and the one or more correction antennas in the vehicle coordinate system and the relative positions of the key with respect to the instrument desk antenna and the one or more correction antennas.
(6) And calculating the average position of the vehicle key in the vehicle coordinate system according to the plurality of calculated positions of the vehicle key in the vehicle coordinate system, wherein the average position is used as the initial position of the key.
In some embodiments, the instrument desk antenna and the correction antenna are both low frequency antennas.
In some embodiments, the vehicle may drive a radio frequency module of the vehicle through the controller to send the positioning instructions.
In some embodiments, after the vehicle key receives the positioning instruction, that is, after the vehicle key receives the radio frequency signal sent by the radio frequency module, the positioning mode is started and the radio frequency signal is fed back to the controller so that the vehicle can receive the radio frequency signal.
In some embodiments, the controller sequentially drives the instrument desk antenna and the one or more correction antennas in the vehicle at a preset frequency, a preset sequence and a preset number of times, so that the instrument desk antenna and the one or more correction antennas respectively form a magnetic field in the space in the vehicle, and after the vehicle key low-frequency receiving module detects the formation of the magnetic field, the vehicle key low-frequency receiving module starts to detect the magnetic field strength in 3 directions of an X axis, a Y axis and a Z axis of the vehicle key and generate magnetic field strength data, so that the magnetic field strength data are fed back to the radio-frequency receiving end of the controller through radio-frequency signals to be received by the vehicle.
In some embodiments, the preset frequency, the preset sequence and the preset number of times can be set by themselves according to needs, the preset frequency is preferably 20ms, and the preset number of times is preferably 10. Exemplarily, if the initial position of the vehicle key is determined by three low-frequency antennas, namely, the low-frequency antenna 1, the low-frequency antenna 2 and the low-frequency antenna 3, the preset frequency is 20ms, the preset number of times is 10, and the preset sequence is the low-frequency antenna 3 → the low-frequency antenna 2 → the low-frequency antenna 1, the controller sequentially drives the low-frequency antennas in the vehicle at the preset frequency, the preset sequence and the preset number of times as follows: the low-frequency antenna 3 is driven to form a magnetic field, the low-frequency antenna 3 is stopped to be driven and the low-frequency antenna 2 is driven to form the magnetic field after 20ms, the low-frequency antenna 2 is stopped to be driven and the low-frequency antenna 1 is driven to form the magnetic field after 20ms, and the operation is circulated until the low-frequency antenna 1, the low-frequency antenna 2 and the low-frequency antenna 3 are driven for 10 times.
In some embodiments, after the controller receives the magnetic field strength data sent by the key, the controller may further determine the magnitude of the magnetic field strength corresponding to each antenna according to the magnetic field strength data to screen the antennas, for example, rank the magnetic field strengths of the vehicle key in the magnetic fields formed by the antennas in the order from large to small, and calculate the initial position by selecting the antenna with the largest magnetic field strength or selecting the magnetic field strength data of the antenna with the magnetic field strength rank greater than or equal to X, so as to save the system computation amount. It can be understood that the value of X can be set according to the requirement.
Step S220: and when the initial position is in a preset interference area of the vehicle instrument desk, determining the detection position of the vehicle key according to the instrument desk antenna.
In particular, in the above section of the specification, it has been stated that when the initial position is in the preset interference area of the vehicle instrument desk, the positioning accuracy of the initial position is low, and even a positioning misjudgment and the like may occur, so that the initial position needs to be calibrated at this time.
In some embodiments, step 220 comprises:
(1) Determining a first relative position of the vehicle key with respect to the instrument desk antenna based on a first magnetic field strength of the vehicle key within the first magnetic field; wherein the first magnetic field is generated by the instrument desk antenna.
(2) A first position of the instrument desk antenna is obtained.
(3) And determining a detection position according to the first relative position and the first position.
In some embodiments, a first relative coordinate of the vehicle key with respect to the instrument desk antenna may be determined based on the first relative position, e.g., the instrument desk antenna coordinate system is constructed with the instrument desk antenna as the origin, and the coordinates of the vehicle key in the instrument desk antenna coordinate system are determined based on the first relative position.
In some embodiments, obtaining the first position of the instrument desk antenna is obtaining first coordinates of the instrument desk antenna in a vehicle coordinate system, it being understood that the first coordinates of the instrument desk antenna in the vehicle coordinate system may reflect the first position of the instrument desk antenna within the vehicle.
In some embodiments, the step of determining the detection position from the first relative position and the first position comprises: and converting the coordinates of the vehicle key under the instrument desk antenna coordinate system into the coordinates of the vehicle key under the vehicle coordinate system, namely the detection position, according to the coordinate system conversion relation between the instrument desk antenna coordinate system and the vehicle coordinate system. It can be understood that the coordinate system transformation relationship between the instrument desk antenna coordinate system and the vehicle coordinate system may be stored in the memory of the vehicle in advance for calling, and the application is not limited to the manner of obtaining the coordinate system transformation relationship between the instrument desk antenna coordinate system and the vehicle coordinate system.
In some embodiments, the vehicle may display the location of the vehicle key to the user via a display system of the vehicle based on the coordinates of the vehicle key in the vehicle coordinate system to enable the user to find the key. Optionally, the origin of the vehicle coordinate system is the center of mass of the vehicle.
In some embodiments, the position of the instrument desk antenna is determined when it is installed or subsequently adjusted, and is not changed before it is adjusted again. The vehicle coordinate system and the instrument desk antenna coordinate system are also set according to the use requirement, so that the coordinates of the instrument desk antenna in the instrument desk antenna coordinate system are known; and the coordinates of the instrument desk antenna in the vehicle coordinate system are known, and the instrument desk antenna can be stored in the vehicle in advance and called when needed.
Step 230: a revised position of the vehicle key is determined based on the at least one revision antenna.
In some embodiments, step 230 comprises:
(1) And determining an initial correction position of the vehicle key corresponding to each correction antenna.
(2) The corrected position of the vehicle key is determined based on all of the initial corrected positions.
In some embodiments, when the number of the correction antennas is one, the initial correction position may be directly used as the correction position.
In some embodiments, the step of determining an initial correction position of the vehicle key for each correction antenna comprises:
(1.1) determining a second relative position of the vehicle key with respect to the correction antenna based on a second magnetic field strength of the vehicle key within the second magnetic field; wherein the second magnetic field is generated by the corresponding modified antenna.
And (1.2) acquiring a second position of the corresponding correction antenna.
(1.3) determining an initial corrected position based on the second relative position and the second position.
In some embodiments, a second relative coordinate of the vehicle key with respect to the correction antenna generating the second magnetic field may be determined based on the second relative position, for example, a correction antenna coordinate system may be constructed with the correction antenna generating the second magnetic field as an origin, and coordinates of the vehicle key in the correction antenna coordinate system may be determined based on the second relative position.
In some embodiments, obtaining the second position of the corresponding correction antenna is obtaining a second coordinate of the correction antenna in the vehicle coordinate system that generated the second magnetic field, it being understood that the second coordinate of the instrument desk antenna in the vehicle coordinate system may reflect the second position of the instrument desk antenna in the vehicle.
In some embodiments, the step of determining the detection position from the second relative position and the second position comprises: and converting the coordinates of the vehicle key in the corrected antenna coordinate system into the coordinates of the vehicle key in the vehicle coordinate system, namely the initial corrected position according to the coordinate system conversion relation between the corrected antenna coordinate system and the vehicle coordinate system. It is understood that the coordinate system conversion relationship between each correction antenna coordinate system and the vehicle coordinate system may be stored in the memory of the vehicle in advance for recall, and the present application is not limited to the manner of obtaining the coordinate system conversion relationship between each correction antenna coordinate system and the vehicle coordinate system.
In some embodiments, the position of each modified antenna is determined when installed or subsequently adjusted, and is unchanged before readjustment. The vehicle coordinate system and the correction antenna coordinate system are also set according to the use requirement, so that the coordinates of each correction antenna in the corresponding correction antenna coordinate system are known; and the coordinates of each correction antenna in the vehicle coordinate system are also known, and can be stored in the vehicle in advance and called when needed.
Further, the above embodiments have explained the determination of the initial corrected position of the vehicle key corresponding to a certain correction antenna, and it is understood that the initial corrected position of the vehicle key corresponding to each correction antenna may be determined by this means, and for example, the correction antennas include a correction antenna 1, a correction antenna 2, and a correction antenna 3, and by this means, the initial corrected position 1 may be determined from the correction antenna 1, the initial corrected position 2 may be determined from the correction antenna 2, and the initial corrected position 3 may be determined from the correction antenna 3.
In some embodiments, when the number of the correction antennas is plural, determining the corrected position of the vehicle key from all the initial corrected positions includes:
and (2.1) determining an average correction position according to all the initial correction positions.
And (2.2) taking the average corrected position as a corrected position.
For example, if the initial corrected positions include an initial corrected position 1 (x 1, y1, z 1), an initial corrected position 2 (x 2, y2, z 2), and an initial corrected position 3 (x 3, y3, z 3), the average corrected position is ((x 1+ x2+ x 3)/3, (y 1+ y2+ y 3)/3, (z 1+ z2+ z 3)/3). It can be understood that determining the corrected position according to the plurality of initial corrected positions can make the calculation accuracy of the positioning deviation higher when calculating the positioning deviation, which is beneficial to improving the positioning accuracy of the key.
Step 240: the initial position is calibrated based on the detected position and the corrected position to determine a calibrated position of the vehicle key.
In some embodiments, step 240 comprises:
(1) A position deviation is determined based on the detected position and the corrected position.
(2) And when the position deviation is smaller than the preset deviation, taking the initial position as the calibration position.
Specifically, when the position deviation is smaller than the preset deviation, it is indicated that the instrument desk antenna of the vehicle instrument desk is less interfered, and at this time, the position of the vehicle key does not need to be determined again, and the initial position is directly used as the calibration position.
In some embodiments, step 240 further comprises:
(3) And when the position deviation is greater than or equal to the preset deviation, taking the corrected position as the calibration position.
Specifically, when the position deviation is greater than or equal to the preset deviation, it is indicated that the instrument desk antenna of the vehicle instrument desk is relatively severely interfered, and at this time, the position of the vehicle key needs to be determined again.
In some embodiments, the position deviation is calculated by the formula: the positional deviation = [ (detected position-corrected position)/detected position ] absolute value 100%.
In some embodiments, the predetermined deviation is in the range of [0%,10% ], preferably 5%.
In some embodiments, the vehicle in the above-described embodiment includes a first door and a second door, and the correction antenna in the above-described embodiment includes at least a first correction antenna and a second correction antenna, the first correction antenna being disposed at the first door, and the second correction antenna being disposed at the second door.
Further, in some embodiments, the first door is disposed opposite the second door. It is understood that relative disposition means that the first door and the second door are either left and right front doors or left and right rear doors.
It can be understood that the arrangement of the vehicle door is relatively open, and low-frequency interference caused by peripheral electric appliances and wiring harnesses is relatively less, so that the low-frequency interference on the first correction antenna and the second correction antenna arranged on the vehicle door is relatively less, and the correction position determined when the low-frequency interference is relatively serious is relatively accurate.
In other embodiments, the modified antenna may also be disposed in other areas of the vehicle with less interference, such as a roof, a seat, etc., which is not limited in this application.
In some embodiments, the vehicle key location method provided herein further comprises:
(1) And acquiring door lock information and window state information of the vehicle door.
(2) When the door lock information of the vehicle door meets the first preset condition, the vehicle window state information meets the second preset condition, and the calibration position meets the third preset condition, reminding information is sent to the user, and the vehicle door is unlocked.
(3) And when the door lock information of the car door does not accord with the first preset condition or the state information of the car window does not accord with the second preset condition but the calibration position accords with the third preset condition, sending reminding information to the user.
In some embodiments, the door lock information includes lock states of four doors, and the first preset condition is that all of the four door locks are in a closed state.
In some embodiments, the window status information includes a rise distance of four windows. The second preset condition may be that four windows are fully raised to the stop position. It will be appreciated that the window is raised to a stop position, i.e. the window is raised to a maximum raisable distance, at which time the window is closed. Further, the second preset condition may be that the four windows are fully raised to a preset distance from the stop position, but the maximum liftable distances of the windows of different vehicles are different, so the preset distance may be set according to needs and experience, and the present application is not limited. Optionally, the preset distance is less than or equal to 1/3 of the maximum liftable distance of the window.
In some embodiments, the third preset condition is that the calibrated position of the vehicle key is located inside the vehicle.
In some embodiments, before the step of obtaining the door lock information and the window state information, the method further comprises:
acquiring gear information of a vehicle power supply and state information of all vehicle doors;
when the vehicle power supply is in a preset gear and all the vehicle doors are in a preset state, vehicle door lock information and vehicle window state information are acquired.
In some embodiments, the vehicle power source is in a preset gear position, and the vehicle power source is in an OFF gear position.
In some embodiments, the predetermined condition is that all doors are closed.
Referring to fig. 3, fig. 3 is a schematic flow chart of a vehicle key positioning method according to an embodiment of the present invention. As shown in fig. 3, the vehicle key positioning method provided by the present application further includes: step 310 to step 370.
Step 310: all doors are closed and the vehicle power is OFF.
Step 320: whether the door lock information of the vehicle door meets the first preset condition or not.
If the door lock information meets the first preset condition, step 330 is executed.
If the door lock information does not meet the first preset condition, step 340 is executed.
Step 330: and whether the vehicle window state information meets a second preset condition or not.
Step 340 is executed regardless of whether the window state information meets the second preset condition, but the execution result of step 340 may be affected by the result of whether the window state information meets the second preset condition.
Step 340: whether the calibration position meets a third preset condition.
Specifically, when the calibration position meets the third preset condition, if the result of step 330 is no, only sending a prompt message to the user; when the calibration position meets the third preset condition, if the result of step 330 is yes, not only a prompt message is sent to the user, but also the vehicle is controlled to unlock the door.
Step 350: and sending reminding information to the user and unlocking the vehicle door.
Specifically, if the results of step 320, step 330 and step 340 are all yes, step 350 is executed to send a reminding message to the user and unlock the vehicle door. Specifically, judge this moment that the user has left the vehicle key in the car, and door lock information accords with first preset condition, door state information accords with the second preset condition, and the door is locked and the door window is tight promptly, judges that the user not only does not find the vehicle key to omit and can't independently open the door, consequently not only sends reminder information to the user but also unblock the door.
Step 360: no treatment is performed.
Specifically, if the result of step 340 is no and one of the results of step 320 or step 330 is no, step 360 is executed and no processing is performed. Specifically, since the vehicle key is outside the vehicle at this time, it is determined that the user has not left the vehicle key, and therefore no processing is performed.
Step 370: and sending reminding information to the user.
Specifically, if the result of step 320 or step 330 is no but the result of step 340 is yes, step 370 is executed to send a reminder to the user. Specifically, judge this moment that the vehicle key is in the car, but door lock information is not conform to first preset condition or door window state information is not conform to the second preset condition, and the door is closed or the door window is not closed completely promptly, therefore the user can independently take back the key this moment, only need to send reminder information to the user can.
Further implementation details may refer to embodiments of the above-mentioned part of the description, which are not described herein.
Through the mode, the key can be timely reminded to the user to take back the key when the vehicle key is left in the vehicle, the unlocking vehicle door is opened by the automatic control vehicle when the user can not take back the key, the situation that the vehicle can not be used in the vehicle due to the fact that the vehicle key is left in the vehicle is prevented from occurring, the vehicle is more intelligent, and the use experience of the user is improved.
The application provides a vehicle key positioning method, a device, a vehicle and a storage medium, wherein the method is applied to the vehicle, the vehicle comprises a vehicle instrument desk, the vehicle instrument desk is provided with an instrument desk antenna, at least one correction antenna is arranged outside the vehicle instrument desk, and the method comprises the following steps: acquiring an initial position of a vehicle key; when the initial position is in a preset interference area of a vehicle instrument desk, determining the detection position of a vehicle key according to an instrument desk antenna; determining a revised position of the vehicle key based on the at least one revision antenna; the initial position is calibrated based on the detected position and the corrected position to determine a calibrated position of the vehicle key. According to the method and the device, when the initial position of the vehicle key is in the preset interference area, the initial position is calibrated according to the detection position and the correction position, the interference of the preset interference area on the key positioning result can be reduced, and the key positioning precision is improved.
Referring to fig. 4 again, fig. 4 is a schematic structural diagram of a vehicle key positioning device according to an embodiment of the present invention. As shown in fig. 4, the vehicle key positioning device 400 is applied to a vehicle including a vehicle instrument panel provided with an instrument panel antenna, and at least one correction antenna provided outside the vehicle instrument panel, and the vehicle key positioning device 400 includes:
the acquiring unit 410 is used for acquiring an initial position of the vehicle key.
The first determining unit 420 is configured to determine a detection position of the vehicle key according to the instrument desk antenna when the initial position is in a preset interference area of the vehicle instrument desk.
A second determining unit 430 for determining a corrected position of the vehicle key based on the at least one correction antenna.
A third determination unit 440 for calibrating the initial position based on the detected position and the corrected position to determine a calibrated position of the vehicle key.
In some embodiments, the third determining unit 440 is specifically configured to: determining a position deviation according to the detection position and the correction position; and when the position deviation is smaller than the preset deviation, taking the initial position as the calibration position.
In some embodiments, the third determining unit 440 is specifically configured to: and when the position deviation is greater than or equal to the preset deviation, taking the corrected position as the calibration position.
In some embodiments, the first determining unit 420 is specifically configured to: determining a first relative position of the vehicle key with respect to the instrument desk antenna based on a first magnetic field strength of the vehicle key within the first magnetic field; wherein the first magnetic field is generated by the instrument desk antenna; acquiring a first position of an instrument desk antenna; and determining a detection position according to the first relative position and the first position.
In some embodiments, the first determining unit 420 is specifically configured to: when the number of the correction antennas is multiple, determining an average correction position according to all the initial correction positions; the average corrected position is taken as the corrected position.
In some embodiments, the first determining unit 420 is specifically configured to: determining a second relative position of the vehicle key with respect to the correction antenna based on a second magnetic field strength of the vehicle key in the second magnetic field; wherein the second magnetic field is generated by the corresponding correction antenna; acquiring a second position of the corresponding correction antenna; and determining an initial correction position according to the second relative position and the second position.
In some embodiments, the vehicle includes a first door and a second door, the modifying antenna includes a first modifying antenna and a second modifying antenna, the first modifying antenna is disposed at the first door, the second modifying antenna is disposed at the second door, and the first door is disposed opposite the second door.
In some embodiments, the vehicle key positioning device 400 further comprises a reminding unit for acquiring door lock information and window status information; when the door lock information of the vehicle door meets a first preset condition, the vehicle window state information meets a second preset condition, and the calibration position meets a third preset condition, sending reminding information to a user and unlocking the vehicle door; when the door lock information of the vehicle door does not accord with the first preset condition or the vehicle window state information does not accord with the second preset condition but the calibration position accords with the third preset condition, reminding information is sent to a user.
In some embodiments, the reminding unit is further used for acquiring gear information of a vehicle power supply and state information of all doors; when the vehicle power supply is in a preset gear and all the vehicle doors are in a preset state, vehicle door lock information and vehicle window state information are acquired.
It should be noted that, for the device class embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment. For any processing manner described in the method embodiment, the processing manner may be implemented by a corresponding processing module in the apparatus embodiment, and details in the apparatus embodiment are not described any more.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present invention. As shown in fig. 5, the vehicle 500 includes: one or more processors 510 and memory 520, with one processor 510 being illustrated in fig. 5.
The processor 510 and the memory 520 may be connected by a bus or other means, such as by a bus in fig. 5.
A processor 510 for obtaining an initial position of a vehicle key; when the initial position is in a preset interference area of a vehicle instrument desk, determining the detection position of a vehicle key according to an instrument desk antenna; determining a revised position of the vehicle key based on the at least one revision antenna; the initial position is calibrated based on the detected position and the corrected position to determine a calibrated position of the vehicle key.
The memory 520, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules of the vehicle key location method in the embodiments of the present application. The processor 510 executes various functional applications and data processing of the vehicle by running non-volatile software programs, instructions and modules stored in the memory 520, i.e., implements the vehicle key location method of the above method embodiments.
The memory 520 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the vehicle, and the like. Further, memory 520 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 520 may optionally include memory located remotely from processor 510, which may be connected to the controller via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more modules are stored in memory 520 that, when executed by the one or more processors 510, perform the vehicle key location method of any of the method embodiments described above, e.g., performing method steps 210-240 of fig. 2 described above.
Referring to fig. 6, fig. 6 is a block diagram illustrating a computer-readable storage medium according to an embodiment of the present invention. The computer-readable storage medium 600 has stored therein a program code 610, the program code 610 being capable of being invoked by a processor to perform the vehicle key location method described in the above-described method embodiments.
The computer-readable storage medium 600 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. Alternatively, the computer-readable storage medium includes a non-volatile computer-readable storage medium. The computer readable storage medium 600 has storage space for program code for performing any of the method steps of the vehicle key location method described above. The program code can be read from and written to one or more computer program products. The program code may be compressed, for example, in a suitable form.
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; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Through the above description of the embodiments, it is clear to those skilled in the art that the embodiments may be implemented by software plus a general hardware platform, and may also be implemented by hardware. 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 a computer program that can be stored in a computer-readable storage medium and that when executed, can include processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Claims (10)
1. A vehicle key positioning method is characterized by being applied to a vehicle, wherein the vehicle comprises a vehicle instrument desk, an instrument desk antenna is arranged on the vehicle instrument desk, at least one correction antenna is arranged outside the vehicle instrument desk, and the method comprises the following steps:
acquiring an initial position of a vehicle key;
when the initial position is in a preset interference area of the vehicle instrument desk, determining the detection position of the vehicle key according to an instrument desk antenna;
determining a revised position of the vehicle key based on at least one of the revised antennas;
and calibrating the initial position according to the detection position and the correction position to determine the calibration position of the vehicle key.
2. The method of claim 1, wherein said calibrating the initial position based on the detected position and the corrected position to determine a calibrated position of the vehicle key comprises:
determining a position deviation according to the detection position and the correction position;
when the position deviation is smaller than a preset deviation, taking the initial position as the calibration position;
and when the position deviation is greater than or equal to the preset deviation, taking the corrected position as the calibration position.
3. The method of claim 1,
the determining of the detection position of the vehicle key according to the instrument desk antenna includes:
determining a first relative position of the vehicle key with respect to the instrument desk antenna based on a first magnetic field strength of the vehicle key within a first magnetic field; wherein the first magnetic field is generated by the instrument desk antenna;
acquiring a first position of the instrument desk antenna;
determining the detection position according to the first relative position and the first position;
said determining a revised position of a vehicle key based on at least one of said revised antennas comprises:
determining a second relative position of the vehicle key with respect to the correction antenna based on a second magnetic field strength of the vehicle key within a second magnetic field; wherein the second magnetic field is generated by the corresponding modified antenna;
acquiring a second position of the corresponding correction antenna;
determining the initial correction position according to the second relative position and the second position;
determining the revised position of the vehicle key from all of the initial revised positions.
4. The method of claim 3, wherein said determining the revised position of the vehicle key from all of the initial revised positions comprises:
when the number of the correction antennas is multiple, determining an average correction position according to all the initial correction positions;
and taking the average corrected position as the corrected position.
5. The method of any of claims 1-4, wherein the vehicle includes a first door and a second door, and wherein the modified antenna includes a first modified antenna and a second modified antenna, the first modified antenna being disposed at the first door and the second modified antenna being disposed at the second door, the first door being disposed opposite the second door.
6. The method of claim 1, further comprising:
acquiring door lock information and window state information of a vehicle door;
when the door lock information of the vehicle door meets a first preset condition, the vehicle window state information meets a second preset condition, and the calibration position meets a third preset condition, sending reminding information to a user and unlocking the vehicle door;
and sending reminding information to a user when the door lock information of the vehicle door does not accord with a first preset condition or the vehicle window state information does not accord with a second preset condition, but the calibration position accords with a third preset condition.
7. The method of claim 6, wherein prior to said obtaining door lock information and window status information, the method further comprises:
acquiring gear information of a vehicle power supply and state information of all vehicle doors;
and when the vehicle power supply is in a preset gear and all the vehicle doors are in a preset state, acquiring vehicle door lock information and vehicle window state information.
8. A vehicle key positioner, characterized in that is applied to the vehicle, the vehicle includes vehicle instrument desk, vehicle instrument desk is provided with the instrument desk antenna, vehicle instrument desk is provided with at least one outward and revises the antenna, the device includes:
an acquisition unit for acquiring an initial position of a vehicle key;
the first determining unit is used for determining the detection position of the vehicle key according to an instrument desk antenna when the initial position is in a preset interference area of the vehicle instrument desk;
a second determination unit configured to determine a corrected position of the vehicle key based on at least one of the correction antennas:
a third determining unit, configured to calibrate the initial position according to the detected position and the corrected position to determine a calibrated position of the vehicle key.
9. A vehicle, characterized by comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the vehicle key location method of any one of claims 1-7.
10. A computer-readable storage medium having computer-executable instructions stored thereon for enabling a vehicle to perform the vehicle key location method of any one of claims 1-7.
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| CN202210638393.3A CN115219982B (en) | 2022-06-06 | 2022-06-06 | Vehicle key positioning method and device, vehicle and storage medium |
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| CN202210638393.3A CN115219982B (en) | 2022-06-06 | 2022-06-06 | Vehicle key positioning method and device, vehicle and storage medium |
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