CN114915905A - Bluetooth key position identification method and device, readable storage medium and vehicle - Google Patents

Bluetooth key position identification method and device, readable storage medium and vehicle Download PDF

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Publication number
CN114915905A
CN114915905A CN202210486146.6A CN202210486146A CN114915905A CN 114915905 A CN114915905 A CN 114915905A CN 202210486146 A CN202210486146 A CN 202210486146A CN 114915905 A CN114915905 A CN 114915905A
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Prior art keywords
bluetooth key
vehicle
value range
signal value
user
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CN114915905B (en
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龚天阳
廖程亮
樊华春
徐炜
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Jiangxi Isuzu Motors Co Ltd
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Jiangxi Isuzu Motors Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention discloses a Bluetooth key position identification method, a Bluetooth key position identification device, a readable storage medium and a vehicle, wherein the method comprises the following steps: when the connection of a Bluetooth key is detected, judging whether the Bluetooth key is connected for the first time; if so, sending signal acquisition prompt information to a user, wherein the prompt information is used for prompting the user to acquire a signal value; and acquiring a signal value range acquired by the user, and using the signal value range as a boundary value range of the Bluetooth key for position identification. The invention solves the problem of low accuracy of Bluetooth key position identification in the prior art.

Description

Bluetooth key position identification method and device, readable storage medium and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a Bluetooth key position identification method, a Bluetooth key position identification device, a readable storage medium and a vehicle.
Background
Along with the continuous development of society, the car gets into thousands of households, at present, along with user's demand is constantly promoted, the vehicle also develops towards intelligent direction, and is specific, and the vehicle passes through modes such as information fusion, communication and realizes that the vehicle is automatic or remote control, and wherein, car bluetooth key just is the embodiment of vehicle intelligence.
The bluetooth key is a function that when a user is close to a vehicle, the user can use mobile phone bluetooth to control the vehicle. The Bluetooth key comprises related operations such as door opening/closing, trunk opening/closing and vehicle starting, and can realize the main functions of a physical key and more convenient vehicle control operation. Therefore, it becomes important how to ensure that the vehicle accurately identifies the accurate position of the bluetooth key, for example, whether the bluetooth key is inside or outside the vehicle at present.
In the prior art, most vehicles are single Bluetooth modules, on one hand, Bluetooth signals emitted by the single Bluetooth modules of the vehicles are not stable enough, and on the other hand, the signal receiving efficiency is different due to different brands of mobile phones or Bluetooth hardware versions and the like, so that the mobile phone A can be identified in the vehicle and the mobile phone B can be identified outside the vehicle in the same position in the actual use process of a user, and the identification is not accurate enough.
Disclosure of Invention
In view of the above, the present invention provides a bluetooth key position identification method, a bluetooth key position identification device, a readable storage medium and a vehicle, and aims to solve the problem of inaccurate bluetooth key position identification in the prior art.
The embodiment of the invention is realized as follows: a bluetooth key location identification method, the method comprising:
when the connection of a Bluetooth key is detected, judging whether the Bluetooth key is connected for the first time;
if so, sending signal acquisition prompt information to a user, wherein the prompt information is used for prompting the user to acquire a signal value;
and acquiring a signal value range acquired by the user, and using the signal value range as a boundary value range of the Bluetooth key for position identification.
Further, the above bluetooth key position identification method, wherein the sending of the signal acquisition prompt message to the user, the prompt message being used to prompt the user to perform the signal value acquisition step further includes:
acquiring a signal value change curve in the current acquisition process of the user according to the signal value acquired by the user;
judging whether the signal value change curve is in the range of a preset signal value change curve or not;
and if so, executing the step of acquiring the signal value range acquired by the user and taking the signal value range as a boundary value range of the Bluetooth key for position identification.
Further, the above method for identifying a bluetooth key position, wherein the step of obtaining a signal value variation curve in the current collection process of the user according to the signal value collected by the user further includes:
acquiring the distance between the vehicle-mounted Bluetooth module and each edge of the vehicle;
and acquiring a signal value range of each edge of the vehicle according to the distance, and determining a preset signal value change curve range according to the signal value range of each edge of the vehicle.
Further, the above bluetooth key position identification method, wherein, after the step of obtaining the signal value range collected by the user and using the signal value range as the boundary value range of the bluetooth key for position identification, further includes:
and acquiring the MAC address of the Bluetooth key, and correspondingly storing the Bluetooth key and the boundary value range corresponding to the Bluetooth key according to the MAC address.
Further, the above bluetooth key position identification method, wherein, after the step of obtaining the signal value range collected by the user and using the signal value range as the boundary value range of the bluetooth key for position identification, further includes:
acquiring the boundary value range of the Bluetooth key acquired by the vehicle in different environments, and correspondingly storing the boundary value range and the corresponding environment;
and when the Bluetooth key is detected to be not connected for the first time, acquiring the current environment information of the vehicle, and adjusting the current boundary value range of the vehicle according to the environment information.
Further, in the above method for identifying a bluetooth key position, the step of obtaining current environment information of a vehicle when it is detected that the bluetooth key is not connected for the first time, and adjusting a current boundary value range of the vehicle according to the environment information includes:
after the Bluetooth key is connected, acquiring a signal intensity change curve of the Bluetooth key in the process of moving from one side far away from the vehicle to one side close to the vehicle within a preset range of the vehicle;
and performing similarity matching on a preset signal intensity change curve and the signal intensity change curve, and taking an environment corresponding to the preset signal intensity change curve with the matching degree higher than a matching degree threshold value as the current environment of the vehicle.
Further, the bluetooth key position identification method may further include:
when detecting that the connection times of the Bluetooth key are greater than the preset times, acquiring working state change parameters of the mobile terminal corresponding to the Bluetooth key, and determining the battery loss degree of the mobile terminal according to the working state change parameters;
acquiring a correction coefficient corresponding to the battery loss degree in a preset database, and correcting the boundary value range through the correction coefficient;
and the working state change parameter is a change parameter of the working state of the current connection of the mobile terminal and the first connection of the mobile terminal.
Another object of the present invention is to provide a bluetooth key position recognition apparatus, comprising:
the connection judging module is used for judging whether the Bluetooth key is connected for the first time or not when the connection of the Bluetooth key is detected;
the signal value acquisition module is used for sending signal acquisition prompt information to a user when the Bluetooth key is judged to be connected for the first time, wherein the prompt information is used for prompting the user to acquire a signal value;
and the boundary value determining module is used for acquiring the signal value range acquired by the user and taking the signal value range as the boundary value range of the Bluetooth key for position identification.
It is a further object of the invention to provide a readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the method as described above.
It is a further object of the invention to provide a vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method as described above when executing the program.
According to the invention, when the Bluetooth key is connected for the first time, the boundary value of the judged Bluetooth key is recalibrated by utilizing the signal value range acquired by the user under the actual condition, and because the recalibrated boundary value is acquired by the user through the mobile phone for connection under the actual scene, the problem of inaccurate Bluetooth key position identification caused by inaccurate signal reception due to different signal reception efficiencies of various mobile phone brands or Bluetooth hardware versions after the vehicle leaves a factory can be avoided, the accuracy of Bluetooth key identification is improved, and the problem of low precision in the prior art when Bluetooth position identification is carried out is solved.
Drawings
Fig. 1 is a flowchart of a bluetooth key location identification method according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a Bluetooth key position identification method according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for identifying a position of a Bluetooth key according to a third embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for identifying a position of a Bluetooth key according to a fourth embodiment of the present invention;
fig. 5 is a block diagram of a bluetooth key position identification apparatus according to a fifth embodiment of the present invention.
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all 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. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
How to improve the accuracy of bluetooth key position identification will be described in detail below with reference to specific embodiments and accompanying drawings.
Example one
Referring to fig. 1, a bluetooth key position identification method according to a first embodiment of the present invention is shown, and the method includes steps S10 to S12.
Step S10, when detecting the connection of the Bluetooth key, judging whether the Bluetooth key is connected for the first time; if yes, go to step S11.
Specifically, the bluetooth key is a general name of a key for realizing a control function through bluetooth connection, and the vehicle bluetooth key is usually used in combination with an APP on a mobile terminal to remotely control functions of starting/shutting down and opening/closing a vehicle door of a vehicle, wherein the mobile terminal includes but is not limited to a mobile phone, a tablet and the like.
In addition, whether the signal intensity value corresponding to the current Bluetooth key and used for identification needs to be recalibrated or not can be determined by judging whether the Bluetooth key is connected for the first time or not.
And step S11, sending signal acquisition prompt information to a user, wherein the prompt information is used for prompting the user to acquire signal values.
The prompt message can be pushed through the mobile APP display interface or the vehicle central control display interface, so that the user receives the prompt message, specifically, the prompt message includes but is not limited to text and/or voice and/or video animation.
Specifically, the user gathers signal value according to predetermineeing the rule, and in this embodiment, the user leans on the vehicle both sides, carries the cell-phone custom according to the weekday and closes close to the vehicle and around the vehicle walking predetermine the number of turns (for example 1 to 2 circles), and cell-phone APP obtains in real time behind the signal strength value of walking in-process, later sends the multiunit signal value for the vehicle to the vehicle is gathered.
It can be understood that through the user carry the cell-phone custom at ordinary times and gather the signal value of receiving by oneself to just carry out signal reception's collection work when the cell-phone is for first connection, can avoid because the vehicle is leaving the factory the back, because the difference of each cell-phone brand or bluetooth hardware version signal reception efficiency leads to signal reception inaccurate, and leads to the inaccurate problem of bluetooth key position discernment.
In addition, in some alternative embodiments of the present invention, in order to increase the efficiency of signal acquisition and the accuracy of signal acquisition, the vehicle may further include a door handle area, an intake grille area, and a rear bumper area, and a final signal value may be obtained by acquiring a signal value of any one of the areas or by averaging acquired signal values of three areas. In addition, it may also be determined whether to acquire a signal value of any one region or average the acquired signal values of the three regions according to different vehicle models, for example, in the case of an SUV vehicle model, the door handle region, the air intake grille region and the rear bumper region may belong to different horizontal planes, and at this time, the acquired signal values of the three regions need to be averaged.
And step S12, acquiring the signal value range collected by the user, and using the signal value range as a boundary value range of the Bluetooth key for position identification.
Specifically, the signal value range acquired by the user in the current acquisition process can be acquired according to the signal value acquired by the user at this time, the boundary value range is a judgment standard for judging the relative position of the vehicle where the bluetooth key is located, and the accuracy of bluetooth key position identification can be improved by taking the signal value range actually acquired by the user as the boundary value range.
More specifically, in some embodiments of the present invention, the method for determining the position of the bluetooth key after acquiring the boundary value range may specifically include:
when the connection of the Bluetooth key is detected, receiving the current signal value of the Bluetooth key, and judging whether the current signal value is larger than the boundary value range;
if yes, determining that the Bluetooth key is located in the vehicle;
if not, the Bluetooth key is judged to be positioned outside the vehicle.
It can be understood that when the received current signal value is greater than the boundary value range, it indicates that the current bluetooth key is greater than the previous detour distance from the car position, i.e. the bluetooth key is located inside the car, and similarly, when the received current signal value is less than the boundary value range, the bluetooth key is located outside the car.
In addition, in some optional embodiments of the present invention, the step of acquiring a signal value range collected by the user, and using the signal value range as a boundary value range of the bluetooth key for position identification includes:
and acquiring a signal value range acquired by the user, determining a target signal value with the maximum signal intensity according to the signal value range, and using the target signal value as a boundary value of the Bluetooth key for position identification.
It can be understood that the purpose of obtaining and setting the boundary value is to determine whether the bluetooth key is inside or outside the vehicle by comparing with the boundary value when knowing the value of the signal strength received by the bluetooth key, so that the boundary value should be set as close as possible to the signal strength value between the bluetooth key and the inside and outside of the vehicle.
In addition, in some optional embodiments of the present invention, the bluetooth key position identification method further includes:
when the connection times of the Bluetooth key are detected to be larger than the preset times, the working state change parameters of the mobile terminal corresponding to the Bluetooth key are obtained, and the battery loss degree of the mobile terminal is determined according to the working state change parameters.
Specifically, the corresponding mobile terminal is a mobile terminal establishing a bluetooth connection with a vehicle, it should be understood that there are many factors affecting the receiving effect of the bluetooth key signal, for example, the electric quantity of the mobile terminal and the transmitting and receiving power of the mobile terminal, and in the actual use process, along with the increase of the service life of the mobile terminal, the loss of hardware will continuously increase, resulting in the performance reduction of the mobile terminal, for example, along with the increase of the service life of the mobile terminal, the health of the battery will decrease, resulting in the voltage of the battery being lower, thereby affecting the transmitting and receiving power and further affecting the capability of the mobile terminal for receiving the bluetooth signal, and in a simple aspect, the longer the service life of the mobile phone, the lower the bluetooth signal that can be received by the mobile phone may be, the lower the bluetooth signal may be, The more unstable the situation tends to be, in this embodiment, the use condition of the mobile terminal is also used as a reference factor for calibrating the boundary value range, specifically, when it is detected that the number of times of connection of the bluetooth key is greater than the preset number of times, it indicates that a certain loss of the mobile phone battery also exists in the period of relatively long time after the mobile terminal is connected with the vehicle-mounted bluetooth for the first time, and at this time, if the determination is performed through the previously calibrated boundary value, the problem of inaccurate identification of the bluetooth key may be caused, and therefore, the current battery loss of the mobile terminal may be determined by obtaining the operating state variation parameter of the mobile terminal.
And acquiring a correction coefficient corresponding to the battery loss degree in a preset database, and correcting the boundary value range through the correction coefficient.
Wherein, it has the correction coefficient that the multiunit corresponds with different battery loss degrees to store in the database in advance, can acquire the correction coefficient that mobile terminal's current battery loss degree corresponds according to the battery loss degree, and revise the boundary value scope through this correction coefficient, with the discernment of guaranteeing the bluetooth key is more accurate, and need not carry out signal acquisition work once more to the bluetooth key, work efficiency has been promoted, and is concrete, the data in the database of predetermineeing can be synthesized through the big data in the server and reachs, and big data in the server can be argued through the experiment of difference.
In summary, in the bluetooth key position identification method in the above embodiment of the present invention, when the bluetooth key is connected for the first time, the boundary value of the determined bluetooth key is recalibrated by using the signal value range acquired by the user in an actual situation, and because the recalibrated boundary value is acquired by the user through the mobile phone used for connection in an actual scene, the problem that the bluetooth key position identification is inaccurate due to inaccurate signal reception caused by different signal reception efficiencies of different mobile phone brands or bluetooth hardware versions after the vehicle leaves the factory can be avoided, the accuracy of the bluetooth key identification is improved, and the problem of low accuracy in the bluetooth position identification in the prior art is solved.
Example two
Referring to fig. 2, a bluetooth key position identification method according to a second embodiment of the present invention is shown, and the method includes steps S20-S24.
Step S20, when detecting the connection of the Bluetooth key, judging whether the Bluetooth key is connected for the first time; if yes, go to step S21.
And step S21, sending signal acquisition prompt information to a user, wherein the prompt information is used for prompting the user to acquire signal values.
And step S22, acquiring the signal value range collected by the user, and using the signal value range as a boundary value range of the Bluetooth key for position identification.
And step S23, acquiring the MAC address of the Bluetooth key, and correspondingly storing the Bluetooth key and the boundary value range corresponding to the Bluetooth key according to the MAC address.
The vehicle is internally provided with an internal storage area for storing the Bluetooth equipment which is currently paired and connected with the Bluetooth key, and simultaneously recording signal values transmitted by the Bluetooth equipment; so as to facilitate the fetching of data.
Specifically, the step of correspondingly storing the bluetooth key and the boundary value range corresponding to the bluetooth key is specifically:
and acquiring the MAC address of the Bluetooth key, and correspondingly storing the MAC address and a target signal value corresponding to the MAC address.
As can be understood, each bluetooth device corresponds to a unique MAC address, and therefore, the MAC address can be used as an identifier of the bluetooth device, and the obtained boundary value range can be stored in a one-to-one correspondence manner through the MAC address.
And step S24, when it is detected that the Bluetooth key is not connected for the first time, reading a historical target signal value range corresponding to the Bluetooth key, and taking the historical target signal value range as a boundary value range of the Bluetooth key for position identification.
The historical target signal value range is signal value data acquired by the previous user when the user is connected for the first time through the Bluetooth key, the signal value data are stored, when the Bluetooth key is detected to be connected for the second time, the stored data can be read, the adaptability adjustment is performed on the boundary range according to the difference of the Bluetooth key, and the accuracy of the Bluetooth key position identification is further improved.
In addition, in some optional embodiments of the present invention, in order to improve the initiative of obtaining the boundary value range, an APP in a mobile phone terminal configured with a bluetooth key is additionally provided with a calibration interface, and a user may trigger a calibration request through the mobile phone APP and perform signal value collection again to adjust the current default boundary value range of the vehicle, so that when the user finds that the current default boundary value range of the vehicle is not accurate enough, the user actively changes the boundary value range.
In summary, the bluetooth key position identification method in the above embodiments of the present invention utilizes the signal value range collected by the user in the actual situation when the bluetooth key is connected for the first time, the boundary value of the determined Bluetooth key is recalibrated, and because the recalibrated boundary value is acquired by a user through a mobile phone for connection in an actual scene, the situation that after the vehicle leaves the factory, because of the difference of signal receiving efficiency of each mobile phone brand or bluetooth hardware version, the signal receiving is inaccurate, the problem of inaccurate position identification of the Bluetooth key is caused, the accuracy of Bluetooth key identification is improved, and after the first connection of the Bluetooth key every time, the data to the collection are stored so that take, when having solved among the prior art when carrying out bluetooth position recognition, the low problem of precision has promoted bluetooth key position recognition's adaptability.
EXAMPLE III
Referring to fig. 3, a bluetooth key position identification method according to a third embodiment of the present invention is shown, and the method includes steps S30 to S34.
Step S30, when detecting the connection of the Bluetooth key, judging whether the Bluetooth key is connected for the first time; if yes, go to step S31.
And step S31, sending signal acquisition prompt information to a user, wherein the prompt information is used for prompting the user to acquire signal values.
And step S32, acquiring the signal value range collected by the user, and using the signal value range as a boundary value range of the Bluetooth key for position identification.
And step S33, acquiring the boundary range of the Bluetooth key collected by the vehicle in different environments, and correspondingly storing the boundary value range and the corresponding environment.
In practice, the signal strength received by the bluetooth key is itself floating, and sometimes may be due to environmental factors (underground parking lot or surrounding vehicles, etc.), for example, when the vehicle is in the parking lot, because there are many obstacles (pillars) in the parking lot, and most parking lots are equipped with multiple bluetooth terminals, for example, parking lots with navigation function, which need to communicate through the bluetooth terminals, these all affect the receiving of the bluetooth signal, so that although the relative positions of the vehicles where the bluetooth key is located are the same, the signal strength actually received by the bluetooth key is different under different environments, therefore, there may be a case where, when the boundary value ranges of the bluetooth key are matched, the environment where the vehicle is located is an open place, and at this time, the obtained boundary value range is the boundary value range of the bluetooth key when the vehicle is in the open place, when the vehicle is parked in the parking lot, the signal strength received by the bluetooth key is interfered by environmental factors, so that when the boundary value range calibrated in an open field is used as the standard for identifying the position of the bluetooth key when the vehicle is in the parking lot, the problem of inaccurate identification of the bluetooth key can be caused.
Correspondingly, boundary value ranges acquired by the vehicle under different environments can be acquired, and the boundary value ranges and the corresponding environments are stored one by one, so that the vehicle can use the corresponding boundary value ranges as judgment standards under different environments.
And step S34, when the Bluetooth key is detected to be not connected for the first time, acquiring the current environment information of the vehicle, and adjusting the current boundary value range of the vehicle according to the environment information.
When the Bluetooth key is detected to be non-connected for the first time, the data such as the environment and the boundary value range corresponding to the previous Bluetooth key are stored in the preset database, so that the current environment information of the vehicle can be acquired, the corresponding boundary value range is acquired according to the environment information, and the current default boundary value range of the vehicle is replaced by the boundary value range, so that the current boundary value range is adjusted.
Specifically, in some optional embodiments of the present invention, the step of determining the environmental information of the vehicle may include:
after the Bluetooth key is connected, acquiring a signal intensity change curve of the Bluetooth key in the process of moving from one side far away from the vehicle to one side close to the vehicle within a preset range of the vehicle;
and performing similarity matching on the signal intensity change curve and a preset signal intensity change curve, and taking an environment corresponding to the preset signal intensity change curve with the matching degree higher than a matching degree threshold value as the current environment of the vehicle.
It can be understood that, it is under different environment to predetermine signal intensity change curve, and the bluetooth key is in the vehicle is predetermine the within range from keeping away from the one side of vehicle to the signal intensity change curve of being close to the one side removal in-process of vehicle, because under different environment, the signal intensity that the bluetooth key received at same position is all inequality, consequently, signal intensity change curve is also inequality, can confirm the environment that the vehicle was located through signal intensity change curve promptly, and is concrete, predetermine signal intensity change curve and can obtain through the experiment in advance.
Therefore, after the Bluetooth key is connected, in the process of moving from the side far away from the vehicle to the side close to the vehicle within the preset vehicle range, the corresponding signal intensity change curve can be obtained, in the moving process, the environment where the vehicle is located can be determined, the default boundary value range of the vehicle is immediately switched to the boundary value range corresponding to the current environment, and the accuracy of Bluetooth key identification is further improved.
In addition, in practice, there are other problems affecting bluetooth key identification, for example, when a user owns multiple mobile phones, and the multiple mobile phones are all bluetooth connected to a vehicle, at this time, the connected mobile phones need to be determined, and generally, the priority of the mobile phones may be determined according to a preset rule, for example, the connection frequency of the mobile phone connected to the vehicle-mounted bluetooth is obtained, and the connected mobile phones are determined according to the size of the connection frequency.
Furthermore, in some optional embodiments of the present invention, the current power of the mobile phone may also be obtained, because the power of the mobile phone may affect the receiving frequency of the bluetooth, and most of the mobile phones may enter the low power mode when the power is too low, and the connection effect of the bluetooth is not good, the connection of the mobile phone may be determined according to the current power of the mobile phone, that is, a determination condition is added on the basis of the connection frequency of the mobile phone, so as to further improve the stability and the identification effect of the bluetooth connection.
In summary, in the bluetooth key position identification method in the above embodiment of the present invention, when the bluetooth key is connected for the first time, the boundary value of the determined bluetooth key is recalibrated by using the signal value range acquired by the user in an actual situation, because the recalibrated boundary value is acquired by the user through the mobile phone for connection in an actual scene, the problem that the bluetooth key position identification is inaccurate due to inaccurate signal reception caused by different signal reception efficiencies of mobile phone brands or bluetooth hardware versions after the vehicle leaves the factory can be avoided, the accuracy of the bluetooth key identification is improved, and after each bluetooth key connection, the environment where the current vehicle is located can be identified, and the boundary value range is switched to the boundary value range corresponding to the current environment, thereby solving the problem that when the bluetooth position identification is performed in the prior art, when the problem that the precision is low, further promoted bluetooth key position identification's accuracy.
Example four
Referring to fig. 4, a bluetooth key position identification method in a fourth embodiment of the present invention is shown, the method includes steps S40 to S44.
Step S40, when detecting the connection of the Bluetooth key, judging whether the Bluetooth key is connected for the first time; if yes, go to step S41.
And step S41, sending signal acquisition prompt information to a user, wherein the prompt information is used for prompting the user to acquire signal values.
And step S42, acquiring a signal value change curve in the current acquisition process of the user according to the signal value acquired by the user.
In practice, since the collected signal values are collected by the user himself, there may be a problem of inaccurate signal value collection under some special conditions, where the special conditions include, but are not limited to, improper user operation or interference caused by other factors during the collection process, for example, when the user collects the signal values through a mobile phone, the user changes hands, shakes the mobile phone while holding the mobile phone, and needs to detour due to obstruction in the collection process, and these series of conditions all result in inaccurate collected signal values (e.g., sudden drop or sudden decrease of the signal values), thereby resulting in an inaccurate bluetooth key position identification problem, and in view of this, after each signal collection is completed, the signal collection is verified, specifically, a signal value change curve during the collection process is obtained according to the signal values collected by the user, and by determining whether the signal value change curve is within a preset signal value change curve range, therefore, whether the signal value acquired in the acquisition process is accurate or not is judged.
In addition, in some optional embodiments of the present invention, in order to determine a range of a preset signal value variation curve, before the step of obtaining a signal value variation curve in a current acquisition process of the user according to the signal value acquired by the user, the method further includes:
acquiring the distance between the vehicle-mounted Bluetooth module and each edge of the vehicle;
and acquiring a signal value range of each edge of the vehicle according to the distance, and determining a preset signal value change curve range according to the signal value range of each edge of the vehicle.
It can be understood that, the signal value range of each edge of the vehicle can be obtained according to the distance between the installation position of the vehicle-mounted bluetooth module and each edge of the vehicle (i.e. each edge of the vehicle that needs to be bypassed when the vehicle is collected by the user), specifically, the signal value reaching each edge of the vehicle can be calculated according to the emission intensity and the distance of the vehicle-mounted bluetooth module, wherein, a maximum value and a minimum value can be determined to limit the signal value range, and a signal value variation curve corresponding to the maximum value and a signal value variation curve corresponding to the minimum value can be respectively obtained according to the maximum value and the minimum value of each edge, the range included between the signal value variation curve corresponding to the maximum value and the signal value variation curve corresponding to the minimum value is the range of the preset signal value variation curve, and the signal value of each edge of the vehicle is determined by the emission intensity of the vehicle-mounted bluetooth module, the problem of inaccurate signal value acquisition caused by the inconsistency of the receiving frequency of the Bluetooth terminal is avoided.
Step S43, judging whether the signal value change curve is in the range of a preset signal value change curve; if yes, go to step S44.
Specifically, when the signal value change curve is judged to be within the range of the preset signal value change curve, it indicates that the signal value acquired in the current signal acquisition process is accurate.
And step S44, acquiring the signal value range collected by the user, and using the signal value range as a boundary value range of the Bluetooth key for position identification.
In summary, in the bluetooth key position identification method in the above embodiment of the present invention, when the bluetooth key is connected for the first time, the boundary value of the determined bluetooth key is recalibrated by using the signal value range acquired by the user in an actual situation, because the recalibrated boundary value is acquired by the user through the mobile phone used for connection in an actual scene, the problem that the bluetooth key position identification is inaccurate due to inaccurate signal reception caused by different signal reception efficiencies of different mobile phone brands or bluetooth hardware versions after the vehicle leaves the factory can be avoided, the accuracy of the bluetooth key identification is improved, and the verification is performed after each signal acquisition, so that the problem of low accuracy in the bluetooth position identification in the prior art is solved, and the accuracy of the bluetooth key position identification is further improved.
EXAMPLE five
Referring to fig. 5, a bluetooth key position identification apparatus according to a fourth embodiment of the present invention is shown, the apparatus including:
the connection judging module 100 is configured to judge whether a bluetooth key is connected for the first time when detecting that the bluetooth key is connected;
the signal value acquisition module 200 is configured to send a signal acquisition prompt message to a user when it is determined that the bluetooth key is connected for the first time, where the prompt message is used to prompt the user to perform signal value acquisition;
and a boundary value determining module 300, configured to obtain a signal value range acquired by the user, and use the signal value range as a boundary value range of the bluetooth key for position identification.
Further, in some optional embodiments of the present invention, wherein the system apparatus further comprises:
the signal value change curve acquisition module is used for acquiring a signal value change curve in the current acquisition process of the user according to the signal value acquired by the user;
judging whether the signal value change curve is in the range of a preset signal value change curve or not;
and if so, executing the step of acquiring the signal value range acquired by the user and taking the signal value range as a boundary value range of the Bluetooth key for position identification.
Further, in some optional embodiments of the present invention, wherein the apparatus further comprises:
the distance acquisition module is used for acquiring the distance between the vehicle-mounted Bluetooth module and each edge of the vehicle;
and acquiring a signal value range of each edge of the vehicle according to the distance, and determining a preset signal value change curve range according to the signal value range of each edge of the vehicle.
Further, in some optional embodiments of the present invention, wherein the apparatus further comprises:
and the storage module is used for acquiring the MAC address of the Bluetooth key and correspondingly storing the Bluetooth key and the boundary value range corresponding to the Bluetooth key according to the MAC address.
Further, in some optional embodiments of the present invention, wherein the apparatus further comprises:
the environment boundary value acquisition module is used for acquiring the boundary value range of the Bluetooth key acquired by the vehicle in different environments and correspondingly storing the boundary value range and the corresponding environment;
and the adjusting module is used for acquiring the current environment information of the vehicle when the Bluetooth key is detected to be not connected for the first time, and adjusting the current boundary value range of the vehicle according to the environment information.
Further, in some optional embodiments of the present invention, wherein the adjusting module comprises:
the change curve acquisition unit is used for acquiring a signal intensity change curve of the Bluetooth key in the process of moving from one side far away from the vehicle to one side close to the vehicle within a preset range of the vehicle after the Bluetooth key is connected;
and the environment determining unit is used for carrying out similarity matching on a preset signal intensity change curve and the signal intensity change curve, and taking an environment corresponding to the preset signal intensity change curve with the matching degree higher than a matching degree threshold value as the current environment of the vehicle.
Further, in some optional embodiments of the present invention, wherein the apparatus further comprises:
the battery loss degree acquisition module is used for acquiring a working state change parameter of the mobile terminal corresponding to the Bluetooth key when detecting that the connection times of the Bluetooth key is greater than a preset time, and determining the battery loss degree of the mobile terminal according to the working state change parameter;
the correction module is used for acquiring a correction coefficient corresponding to the battery loss degree in a preset database and correcting the boundary value range through the correction coefficient;
and the working state change parameter is a change parameter of the working state of the current connection of the mobile terminal and the first connection of the mobile terminal. The functions or operation steps of the above modules when executed are substantially the same as those of the above method embodiments, and are not described herein again.
EXAMPLE six
In another aspect, the present invention further provides a readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method according to any one of the first to fourth embodiments.
EXAMPLE seven
In another aspect, the present invention further provides a vehicle, which includes a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method according to any one of the first to fourth embodiments.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of simplicity of description, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the combinations should be considered as the scope of description in the present specification.
Those of skill in the art will understand that the logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be viewed as implementing logical functions, can be embodied in any computer-readable storage medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable storage medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable storage medium may even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following technologies, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A Bluetooth key position identification method, characterized in that the method comprises:
when the connection of a Bluetooth key is detected, judging whether the Bluetooth key is connected for the first time;
if so, sending signal acquisition prompt information to a user, wherein the prompt information is used for prompting the user to acquire a signal value;
and acquiring a signal value range acquired by the user, and using the signal value range as a boundary value range of the Bluetooth key for position identification.
2. The method for identifying a bluetooth key location according to claim 1, wherein the step of sending a signal acquisition prompt message to a user, the prompt message being used for prompting the user to perform signal value acquisition further comprises:
acquiring a signal value change curve in the current acquisition process of the user according to the signal value acquired by the user;
judging whether the signal value change curve is in the range of a preset signal value change curve or not;
and if so, executing the step of acquiring the signal value range acquired by the user and taking the signal value range as a boundary value range of the Bluetooth key for position identification.
3. The bluetooth key position identification method according to claim 2, wherein the step of obtaining the signal value variation curve of the user in the current collection process according to the signal value collected by the user further comprises:
acquiring the distance between the vehicle-mounted Bluetooth module and each edge of the vehicle;
and acquiring a signal value range of each edge of the vehicle according to the distance, and determining a preset signal value change curve range according to the signal value range of each edge of the vehicle.
4. The method of claim 1, wherein the step of obtaining the signal value range collected by the user and using the signal value range as the boundary value range of the bluetooth key for position recognition further comprises:
and acquiring the MAC address of the Bluetooth key, and correspondingly storing the Bluetooth key and the boundary value range corresponding to the Bluetooth key according to the MAC address.
5. The method of claim 1, wherein the step of obtaining the signal value range collected by the user and using the signal value range as the boundary value range of the bluetooth key for position recognition further comprises:
acquiring the boundary range of the Bluetooth key acquired by the vehicle in different environments, and correspondingly storing the boundary value range and the corresponding environment;
and when the Bluetooth key is detected to be not connected for the first time, acquiring the current environment information of the vehicle, and adjusting the current boundary value range of the vehicle according to the environment information.
6. The bluetooth key position identifying method according to claim 5, wherein the step of obtaining the current environment information of the vehicle when detecting that the bluetooth key is not connected for the first time, and adjusting the current boundary value range of the vehicle according to the environment information comprises:
after the Bluetooth key is connected, acquiring a signal intensity change curve of the Bluetooth key in the process of moving from one side far away from the vehicle to one side close to the vehicle within a preset range of the vehicle;
and performing similarity matching on the signal intensity change curve and a preset signal intensity change curve, and taking an environment corresponding to the preset signal intensity change curve with the matching degree higher than a matching degree threshold value as the current environment of the vehicle.
7. The bluetooth key position identification method according to any one of claims 1 to 6, characterized in that the method further comprises:
when detecting that the connection times of the Bluetooth key are greater than the preset times, acquiring working state change parameters of the mobile terminal corresponding to the Bluetooth key, and determining the battery loss degree of the mobile terminal according to the working state change parameters;
acquiring a correction coefficient corresponding to the battery loss degree in a preset database, and correcting the boundary value range through the correction coefficient;
and the working state change parameter is a change parameter of the working state of the current connection of the mobile terminal and the first connection of the mobile terminal.
8. A bluetooth key position identifying device, the device comprising:
the connection judging module is used for judging whether the Bluetooth key is connected for the first time or not when the connection of the Bluetooth key is detected;
the signal value acquisition module is used for sending signal acquisition prompt information to a user when the Bluetooth key is judged to be connected for the first time, wherein the prompt information is used for prompting the user to acquire a signal value;
and the boundary value determining module is used for acquiring the signal value range acquired by the user and taking the signal value range as the boundary value range of the Bluetooth key for position identification.
9. A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
10. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor when executing the program implementing the steps of the method according to any one of claims 1 to 7.
CN202210486146.6A 2022-05-06 2022-05-06 Bluetooth key position identification method and device, readable storage medium and vehicle Active CN114915905B (en)

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