Vehicle-key searching method, apparatus and system, and program product

By establishing a communication connection between the user terminal and the car key, using the built-in positioning module to obtain and update positioning information, and combining sound and light alarms and key authentication, the high cost and low accuracy problems of existing car key finding methods are solved, and low-cost, high-precision and safe car key finding is achieved.

WO2025195011A1PCT designated stage Publication Date: 2025-09-25CHONGQING CHANGAN TECH CO LTD
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Patent Information

Application Number
PCT/CN2025/073677
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-18
Filing Date
2025-01-21
Publication Date
2025-09-25

AI Technical Summary

Technical Problem

Existing car key finding methods require the additional installation of a GPS module, which increases costs and power consumption, and the positioning is not accurate enough, making it inconvenient for users to find their keys.

Method used

The user terminal's built-in positioning module is used to establish a communication connection with the car key, and positioning information is obtained and saved through wireless communication technology. The positioning is updated in combination with beacon heartbeat technology, an audible and visual alarm function is provided, and two-way key authentication is performed to improve security.

Benefits of technology

It reduces the production cost and usage complexity of car keys, improves positioning accuracy and safety, reduces the frequency of battery replacement, and enhances the convenience and accuracy of key locating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of physical vehicle keys. Disclosed are a vehicle-key searching method, apparatus and system, and a program product. The method is applied to a user terminal that comprises a locating module. The method comprises: receiving a searching instruction, and querying vehicle-key locating information in response to the searching instruction, wherein the vehicle-key locating information is locating information at a moment closest to a current moment, which locating information is acquired by a user terminal on the basis of a locating module after the user terminal and a vehicle key establish a communication connection within a preset range; and playing the vehicle-key locating information, so as to prompt a user to arrive at the location marked by the vehicle-key locating information, and search for the vehicle key. The effect of automatically locating a vehicle key at a low cost is achieved.
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Description

Car key search method, device, system and program product

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on March 18, 2024, with application number 202410306894.0 and invention name “A car key finding method, device, system and program product”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of vehicle physical keys, and in particular to a vehicle key search method, device, system and program product. Background Art

[0004] In daily life, users often misplace their physical car keys, causing them to lose them and affecting their work efficiency. Currently, some commonly used item-finding devices address this problem by installing a GPS positioning module on the device and then binding the device to the easily lost item. For example, a keychain used for finding keys has a GPS positioning module. When the user binds the keychain to their car keys, they can use the keychain's GPS positioning to find their car keys when they are lost. Alternatively, the GPS positioning module can be directly installed on the car keys, and when the car keys are lost, the GPS positioning module can be used to locate the lost car keys. However, these methods require the addition of a GPS module to the item, significantly increasing the cost of the item. Furthermore, the GPS positioning module consumes a lot of power, and whether using a keychain or a car key with a GPS positioning module, the battery must be frequently replaced, which increases the inconvenience of using the car keys. Summary of the Invention

[0005] In view of this, the present application provides a car key search method, device, system and program product to solve the problem of being unable to find car keys at a low cost.

[0006] In the first aspect, the present application provides a car key finding method, which is applied to a user terminal, and the user terminal includes a positioning module. The method includes: receiving a finding instruction, and querying the car key positioning information in response to the finding instruction. The car key positioning information is the positioning information closest to the current moment obtained by the user terminal based on the positioning module after the user terminal and the car key establish a communication connection within a preset range; playing the car key positioning information to remind the user to arrive at the location marked by the car key positioning information to find the car key.

[0007] The above-mentioned technical approach establishes a communication connection between a user terminal and a car key. Once the communication connection is established, the user terminal's built-in positioning module saves the most recent location information from the current moment, which is considered the car key's last location. Therefore, if the user cannot find their car key, they can enter a search command into the user terminal to activate car key search mode. The user terminal then plays the car key location information, reminding the user to reach the car key's last location, thus assisting them in finding the car key. This technical approach also eliminates the need for an additional secure GPS positioning module on the car key, significantly reducing the production cost and complexity of car keys.

[0008] In an optional embodiment, the step of the user terminal obtaining the car key positioning information based on the positioning module includes: establishing a wireless communication connection with the car key based on wireless communication pairing technology; receiving a connection beacon sent by the car key at a preset period; detecting whether the wireless communication connection with the car key is disconnected; wherein, when establishing a wireless communication connection with the car key, when disconnecting the wireless communication connection, and each time a connection beacon is received, the current positioning information is obtained based on the positioning module, and the current positioning information is saved in the user terminal as the car key positioning information.

[0009] According to the above technical means, the user terminal and the car key establish a connection based on wireless communication technology, which improves the flexibility of locating the car key. The user terminal will perform positioning when the connection is first established, disconnected, and every preset period. This not only ensures that the saved car key positioning information is the latest, but also records the movement trajectory of the user carrying the key. In the case that the key is lost first but the connection is not disconnected because it is within the wireless communication distance range, resulting in the key actually being at the edge of the positioning range, if the key cannot be found within the latest positioning range, the key can continue to be searched for in the direction of the trajectory based on the historical trajectory of the positioning record, thereby improving the accuracy of the car key positioning information.

[0010] In an optional embodiment, the car key includes an alarm module. After playing the car key positioning information, the method further includes: receiving a short-range pairing instruction, and searching for the car key in response to the short-range pairing instruction; when the car key is searched, establishing a wireless communication connection with the car key; receiving an alarm instruction and forwarding the alarm instruction to the car key, so that the car key responds to the alarm instruction through the alarm module to sound an alarm.

[0011] According to the above technical means, when the user arrives at the positioning location, he can also turn on the wireless communication function of the user terminal and establish a wireless communication connection with the car key, thereby issuing instructions such as sound and light alarms to make the car key alarm, thereby avoiding the situation where the car key cannot be found because the car key is in a place that cannot be directly observed near the positioning location, further improving the accuracy of finding the car key.

[0012] In an optional embodiment, the steps of establishing a wireless communication connection between the user terminal and the car key include: downloading key information and car key identity information from the server, the key information and car key identity information are information read from the car key and uploaded to the server by the vehicle after the car key is successfully bound to the vehicle; searching for the car key through the car key identity information; when the car key is searched, performing two-way authentication with the car key through the key information; when the authentication is passed, establishing a wireless communication connection with the car key.

[0013] According to the above technical means, establishing a wireless communication connection between the user terminal and the car key requires two-way key authentication, which prevents other users other than the car owner from stealing the car owner's car key with the help of other user terminals, thereby improving the security of the car key.

[0014] In an optional embodiment, before receiving the alarm instruction and forwarding the alarm instruction to the car key, the method also includes: detecting the strength information of the wireless communication signal and generating direction information based on the strength information; playing the direction information to remind the user to move in the direction indicated by the direction information.

[0015] In an optional embodiment, the strength information of the wireless communication signal is detected, and the direction information is generated based on the strength information, including: sequentially measuring the signal strength of the wireless communication signal in a 360-degree direction of the user terminal as the strength information; plotting the signal strength in each direction as a fan-shaped graph in the corresponding direction according to a preset radius ratio, and using the graph obtained by combining the various fan-shaped graphs as the direction information.

[0016] According to the above technical means, this embodiment also displays direction information on the user terminal based on the strength information of the wireless communication signal, thereby guiding the user to move in the direction with stronger wireless communication signal strength, further improving the accuracy of finding the car key.

[0017] In an optional embodiment, downloading key information and vehicle key identity information from a server includes: logging into the server through a vehicle account; when the login is successful, sending a vehicle key information acquisition instruction to the server, so that the server searches for the key information and vehicle key identity information corresponding to the vehicle account in the server in response to the vehicle key information acquisition instruction; and receiving the key information and vehicle key identity information fed back by the server.

[0018] According to the above technical means, each user terminal logs in to the server through a unique vehicle account, thereby downloading the corresponding key information and vehicle key identity information, further preventing the key information and vehicle key identity information from being stolen by other user terminals, and improving the security of vehicle key storage.

[0019] On the second aspect, the present application provides a car key finding device, which is applied to a user terminal, and the user terminal includes a positioning module. The device includes: a finding module, which is used to receive a finding instruction and query the car key positioning information in response to the finding instruction. The car key positioning information is the positioning information obtained by the user terminal based on the positioning module after the user terminal and the car key establish a communication connection within a preset range; a positioning reminder module, which is used to play the car key positioning information to remind the user to go to the location marked by the car key positioning information to find the car key.

[0020] On the third aspect, the present application provides a car key finding system, which includes a user terminal and a car key, and the user terminal includes a positioning module, wherein: after the user terminal and the car key establish a communication connection, the user terminal obtains positioning information based on the positioning module, and saves the positioning information locally as car key positioning information; the user terminal is used to receive a search instruction, and query the car key positioning information in response to the search instruction, and then play the car key positioning information to remind the user to arrive at the location marked by the car key positioning information to find the car key.

[0021] In a fourth aspect, the present application provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the method of the above-mentioned first aspect or any corresponding embodiment thereof.

[0022] In a fifth aspect, the present application provides a computer program product, comprising computer instructions, which are used to enable a computer to execute the method of the above-mentioned first aspect or any corresponding embodiment thereof.

[0023] The technical solution provided by this application has the following advantages:

[0024] (1) According to the above technical means, a communication connection is established between the user terminal and the car key. After the communication connection is established, the positioning information closest to the current moment is saved with the help of the positioning module built into the user terminal, which is considered to be the last location of the car key. Therefore, when the user cannot find the car key, the car key search mode is activated by inputting a search command into the user terminal. The user terminal plays the car key positioning information to remind the user to reach the location where the car key was last seen, thereby helping the user to find the car key. In addition, this technical means does not require an additional secure GPS positioning module to be attached to the car key, significantly reducing the production cost and usage complexity of the car key.

[0025] (2) According to the above technical means, the user terminal and the car key establish a connection based on wireless communication technology, which improves the flexibility of locating the car key. The user terminal will perform positioning when the connection is first established, disconnected, and every preset period. This not only ensures that the saved car key positioning information is the latest, but also records the movement trajectory of the user carrying the key. In the case that the key is lost first but the connection is not disconnected because it is within the wireless communication distance range, resulting in the key actually being at the edge of the positioning range, if the key cannot be found within the latest positioning range, the key can continue to be searched for in the direction of the trajectory based on the historical trajectory of the positioning record, thereby improving the accuracy of the car key positioning information.

[0026] (3) According to the above technical means, after the user arrives at the positioning location, he can also turn on the wireless communication function of the user terminal and establish a wireless communication connection with the car key, thereby issuing instructions such as sound and light alarms to make the car key alarm, thereby avoiding the situation where the car key cannot be found because it is in a place that cannot be directly observed near the positioning location, further improving the accuracy of finding the car key.

[0027] (4) According to the above technical means, a two-way key authentication is required to establish a wireless communication connection between the user terminal and the car key, so as to prevent other users other than the car owner from stealing the car owner's car key with the help of other user terminals, thereby improving the security of the car key.

[0028] (5) According to the above technical means, this embodiment also displays direction information on the user terminal based on the strength information of the wireless communication signal, thereby guiding the user to move in the direction with stronger wireless communication signal strength, further improving the accuracy of finding the car key.

[0029] (6) According to the above technical means, each user terminal logs in to the server through a unique vehicle account, thereby downloading the corresponding key information and vehicle key identity information, further preventing the key information and vehicle key identity information from being stolen by other user terminals, and improving the security of vehicle key storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] FIG1 is a flow chart of a method for finding a car key according to an embodiment of the present application;

[0032] FIG2 is a schematic diagram of a signal strength guide map according to an embodiment of the present application;

[0033] FIG3 is another schematic flow chart of a method for finding a car key according to an embodiment of the present application;

[0034] FIG4 is a schematic diagram showing the effect of a mobile phone searching for a Bluetooth car key according to an embodiment of the present application;

[0035] FIG5 is a schematic structural diagram of a vehicle key finding device according to an embodiment of the present application;

[0036] FIG6 is a schematic structural diagram of a car key finding system according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0038] According to an embodiment of the present application, an embodiment of a car key finding method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0039] In this embodiment, a method for finding a car key is provided, which is used in the above-mentioned user terminal. The user terminal includes a positioning module. FIG1 is a flow chart of a method for finding a car key according to an embodiment of the present application. The flow chart includes the following steps:

[0040] Step S101: receiving a search instruction and querying the vehicle key location information in response to the search instruction. The vehicle key location information is the location information closest to the current moment obtained by the user terminal based on the positioning module after the user terminal and the vehicle key establish a communication connection within a preset range.

[0041] Step S102 : Play the car key location information to remind the user to go to the location marked by the car key location information to find the car key.

[0042] Specifically, in the embodiments of the present application, a user terminal refers to a terminal device that a user can carry and use directly, including but not limited to mobile phones, tablet computers, and laptop computers. Typically, such terminal devices have built-in positioning modules such as GPS or Beidou positioning. Based on this, the embodiments of the present application provide a method for finding a vehicle key when the physical key of a vehicle is lost. Specifically, before the search, the embodiments of the present application establish a communication connection between the user terminal and the vehicle key. The communication distance between the user terminal and the vehicle key cannot be too far, but must be within a preset range, for example, within a radius of 10 meters. This embodiment is merely an example and is not intended to be limiting. The communication connection includes at least one of a wired communication connection and a wireless communication connection. For example, the user terminal is connected to the vehicle key via a data cable, or the user terminal is connected to the vehicle key via a wireless communication protocol such as Bluetooth or WiFi. Thus, after the user terminal and the vehicle key establish a communication connection, the user terminal obtains positioning information based on the positioning module. Since the vehicle key and the user terminal are relatively close, the positioning information can be used as the approximate location of the vehicle key if it is not lost. The user can obtain multiple locations by operating the user terminal to connect to the vehicle key multiple times. The user terminal stores the obtained positioning information as vehicle key positioning information in the device.

[0043] When a car key is lost, the user can input a search command into the user terminal, which then receives the search command and enters key search mode in response to the search command, querying the car key location information. The user terminal then plays the car key location information through voice or animation. The car key location information, as the car key's most recent location, can remind the user to go to the location marked by the car key location information to search for the car key, solving the problem of users not knowing where the car key is lost. At the same time, the user terminal is a terminal device that users often use, and mobile phones, tablets, etc. all have built-in positioning modules, eliminating the need for a separate device positioning module on the car key. This significantly reduces the production cost and development difficulty of the car key, reduces the power consumption of the physical car key, and improves the overall convenience of the car key search process.

[0044] In some optional implementations, the above step S101 includes:

[0045] Step a1: establishing a wireless communication connection with the car key based on wireless communication pairing technology;

[0046] Step a2, receiving a connection beacon sent by the car key at a preset period;

[0047] Step a3: When establishing a wireless communication connection with the car key, disconnecting the wireless communication connection, and each time a connection beacon is received, the current positioning information is obtained based on the positioning module, and the current positioning information is saved as the car key positioning information in the user terminal.

[0048] Specifically, in an embodiment of the present application, a specific method for establishing a communication connection between a user terminal and a car key and obtaining car key location information is provided. In an embodiment of the present application, a wireless communication connection is established between a user terminal such as a mobile phone and a car key through wireless communication pairing technology, wherein the wireless communication connection includes but is not limited to a Bluetooth connection and a WIFI connection. When the user terminal establishes a wireless communication connection with the car key, the user terminal is controlled to obtain the location of the user terminal through a positioning module such as GPS, and the current positioning information obtained by the positioning module is saved in the user terminal. Afterwards, the car key also sends a connection beacon to the user terminal at a preset period (for example, a heartbeat line technology used to confirm that the car key and the user terminal are connected, this is only an example and not limited to this). Each time the user terminal receives a connection beacon, it will obtain positioning information once, thereby updating the car key positioning information. The positioning information will also be recorded once when the car key and the user terminal are disconnected. Through the above scheme, it is ensured that the car key positioning information can indicate the last location of the car key, thereby improving the accuracy of the car key positioning information. The user terminal and the car key establish a connection based on wireless communication, which improves the flexibility of the connection. In addition, positioning information is continuously recorded during the connection between the user terminal and the car key, and the movement trajectory of the user carrying the key can also be recorded. In the case where the key is lost first but the key is still within the wireless communication range and is not disconnected from the user terminal, the key may actually be lost at the edge of the latest positioning range. If the key cannot be found within the latest positioning range, even if the edge direction is wide and the user cannot remember the approximate edge direction of the key, the user can continue to search for the key in the direction of the trajectory based on the historical trajectory of the positioning record, further improving the accuracy of finding the key.

[0049] In some optional implementations, the vehicle key further includes an alarm module, and after the above step S102, the following steps are further included:

[0050] Step b1, receiving a short-distance pairing instruction, and searching for a vehicle key in response to the short-distance pairing instruction;

[0051] Step b2: when the car key is found, establishing a wireless communication connection with the car key;

[0052] Step b3: receiving an alarm instruction and forwarding the alarm instruction to the vehicle key, so that the vehicle key responds to the alarm instruction through the alarm module and issues an alarm.

[0053] Specifically, the car key provided in an embodiment of the present application also includes an alarm module that can provide, but is not limited to, audible and visual alarm functions, such as a buzzer and a flashing red light. Based on this, when a user's car key is lost, the user first carries a user terminal and, based on the car key location information, arrives at the location indicated by the car key location information. This location corresponds to the car key's last known location, so the car key is likely near that location. Next, this embodiment allows the user to input a proximity pairing command into the user terminal. When the user arrives at the designated location, the user terminal responds to the proximity pairing command and begins searching for the car key. If the car key is indeed near the user terminal, the user terminal and the car key are successfully paired, establishing a wireless communication connection. The user can then input an alarm command into the user terminal, which receives and forwards the alarm command to the car key. This triggers the car key, through the alarm module, to emit an audible and visual alarm in response to the alarm command, making it easier for the user to find the car key. This further improves the accuracy of the user's car key search, reduces search time, and improves the efficiency of finding the car key.

[0054] In some optional implementations, the step of establishing a wireless communication connection between the user terminal and the vehicle key includes:

[0055] Step c1, downloading key information and vehicle key identity information from the server. The key information and vehicle key identity information are information read from the vehicle key and uploaded to the server by the vehicle after the vehicle key is successfully bound to the vehicle;

[0056] Step c2, searching for the car key by the car key identity information;

[0057] Step c3: when the car key is found, two-way authentication is performed with the car key through the key information;

[0058] Step c4: When the authentication is successful, a wireless communication connection is established with the vehicle key.

[0059] Specifically, the embodiment of the present application provides a function for the user terminal and the car key to perform identity authentication. After the car key is successfully bound to the vehicle, the car key can operate the target vehicle, thereby reading the key information and car key identity information of the car key through the vehicle's onboard computer, and uploading the read information to the server. Before the user terminal establishes a wireless communication connection with the car key, the user terminal first downloads the corresponding car key identity information and key information according to the identification of the target vehicle (such as the model and engine number of the vehicle). When the user terminal establishes a wireless communication connection with the car key, the user terminal searches for nearby devices. For example, the user terminal searches for nearby Bluetooth devices through Bluetooth technology, and then determines whether the Bluetooth device list includes the Bluetooth device described by the car key identity information (for example, the car key identity information is a Bluetooth name or a Bluetooth device identifier), thereby determining whether there is a car key nearby. When it is found that there is a car key nearby, two-way authentication is performed with the car key through the key information. Only when the two-way authentication is passed, the user terminal establishes a communication connection with the car key. Based on the solution provided in the embodiment of the present application, a two-way key authentication is required to establish a wireless communication connection between the user terminal and the car key, thereby preventing other users other than the car owner from stealing the car owner's car keys with the help of other user terminals. This avoids the problem of car keys being picked up by mistake to a certain extent and improves the security of the car keys.

[0060] In some optional implementation manners, before the above step b3, the method further includes:

[0061] Step d1, detecting strength information of the wireless communication signal and generating direction information based on the strength information;

[0062] Step d2: Play the direction information to remind the user to move in the direction indicated by the direction information.

[0063] Specifically, this embodiment also displays direction information on the user terminal based on wireless communication signal strength information. For example, Bluetooth signal strength detection technology or Wi-Fi signal strength detection technology is used to detect which direction has stronger signal strength and more signal bars. Based on the signal strength detection, a corresponding guidance screen is generated on the user terminal, guiding the user to move in the direction of stronger wireless communication signal strength, closer to the car key, and improving the accuracy of finding the car key.

[0064] In some optional implementations, the above step d1 includes:

[0065] Step d11, measuring the signal strength of the wireless communication signal in 360 degrees of the user terminal in sequence as strength information; plotting the signal strength in each direction as a fan-shaped diagram in the corresponding direction according to a preset radius ratio, and combining the fan-shaped diagrams as the direction information.

[0066] Specifically, as shown in Figure 2, the signal strength guidance diagram provided by the embodiment of the present application is implemented based on a fan-shaped diagram with different radii, and the signal strength of the wireless communication signal is measured in sequence in the 360-degree direction of the user terminal, such as measuring the Bluetooth signal strength or the WIFI signal strength. After measurement, the measured signal strength and the preset angle are discretized, for example, the average signal strength of 0 to 30 degrees is calculated within the range of 0 to 30 degrees, thereby representing the signal strength within the range of 0 to 30 degrees, and the calculation is performed once every 30 degrees according to the above steps (this embodiment is only used as an example, not limited to this, and the specific discrete angle can be selected according to user needs). Afterwards, the signal strength in each direction is drawn as a fan-shaped diagram in the corresponding direction according to the preset radius ratio. For example, the greater the signal strength, the longer the corresponding fan radius, thereby achieving the effect shown in Figure 2. The solution provided by this embodiment improves the clarity of the guidance information, facilitates the user to know the direction with greater signal strength, and achieves the effect of accurately guiding the user.

[0067] In some optional implementations, the above step c1 includes:

[0068] Step e1, log in to the server through the vehicle account;

[0069] Step e2: When the login is successful, a vehicle key information acquisition instruction is sent to the server, so that the server searches for key information and vehicle key identity information corresponding to the vehicle account in the server in response to the vehicle key information acquisition instruction;

[0070] Step e3: Receive the key information and vehicle key identity information fed back by the server.

[0071] Specifically, in this embodiment, each user terminal logs in to the server through the vehicle account of the vehicle corresponding to the car key. Only after successful login can the corresponding key information and car key identity information be downloaded, further preventing the key information and car key identity information from being stolen by other user terminals, thereby improving the security of car key storage.

[0072] In a specific application embodiment, taking a Bluetooth car key as an example, the user terminal is a mobile phone as an example, and a mobile phone APP is installed on the mobile phone. The mobile phone APP has GPS positioning function, positioning data storage function, scanning and filtering specific Bluetooth broadcast signals, and establishing a Bluetooth connection with the Bluetooth terminal; the Bluetooth car key has the function of sending Bluetooth broadcast information in real time, the function of receiving the scan of the main node and sending a scan response, the function of establishing a Bluetooth connection with the Bluetooth main node, the function of receiving the control instructions of the mobile phone APP after security authentication through the Bluetooth channel, and the function of realizing the buzzer sounding.

[0073] As shown in Figure 3, the complete steps of the technical solution provided by this application are as follows:

[0074] 1. After the Bluetooth car key is paired with the vehicle, it periodically sends a Bluetooth broadcast containing specific fields such as the fixed device name and service UUID (Universally Unique Identifier), and synchronizes the key's related information to the backend server through the vehicle-side remote control module.

[0075] 2. After the user uses the mobile phone to bind the vehicle with real name, log in to the vehicle account, download the key information and car key identity information of the vehicle and physical key from the background server through the mobile phone APP, and then scan the Bluetooth broadcast at a preset period. When the car key identity information scan filters out the legitimate Bluetooth physical key broadcast, a connection is established with the car key through the key information. The mobile phone APP then records the current GPS coordinate data and saves the recorded data in the mobile phone as the car key positioning information.

[0076] 3. After the user opens the mobile app and turns on the key search function, the mobile app queries the locally recorded car key location information and feeds it back to the user through the UI interface.

[0077] 4. After the user reaches the car key location information (coordinate position) recorded by the mobile phone APP, turn on the precise search function, start the Bluetooth scanning function, and continuously scan the surrounding Bluetooth broadcast signals.

[0078] 5. As shown in Figure 4, the mobile phone app scans the Bluetooth physical key broadcast information and initiates a Bluetooth connection. When the Bluetooth connection is successful, the Bluetooth channel is used for security authentication.

[0079] 6. The mobile phone APP uses the Bluetooth signal strength to identify the key's position in real time and guide the user to the car key. The user can also input alarm commands through the APP, such as clicking the alarm button to control the car key's buzzer to sound and remind the user.

[0080] 7. After the physical key receives the buzzer control command, it turns on the buzzer function to remind the user of the specific location of the key.

[0081] This embodiment also provides a vehicle key finding device for implementing the aforementioned embodiments and preferred implementations. Details already described will not be repeated. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. While the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0082] This embodiment provides a car key finding device, which is applied to a user terminal. The user terminal includes a positioning module, as shown in FIG5 , including:

[0083] A search module 501 is configured to receive a search instruction and query the vehicle key location information in response to the search instruction. The vehicle key location information is location information obtained by the user terminal based on the positioning module after the user terminal and the vehicle key establish a communication connection within a preset range;

[0084] The positioning reminder module 502 is used to play the car key positioning information to remind the user to go to the location marked by the car key positioning information to find the car key.

[0085] In some optional implementations, the search module 501 includes:

[0086] A terminal key connection unit, configured to establish a wireless communication connection with the vehicle key based on wireless communication pairing technology;

[0087] A beacon receiving unit, configured to receive a connection beacon sent by the vehicle key at a preset period;

[0088] The positioning information acquisition and determination unit is used to obtain the current positioning information based on the positioning module when establishing a wireless communication connection with the car key and each time a connection beacon is received, and save the current positioning information as the car key positioning information in the user terminal.

[0089] In some optional embodiments, the vehicle key includes an alarm module, and the device further includes:

[0090] a short-range search module, configured to receive a short-range pairing instruction and search for a vehicle key in response to the short-range pairing instruction;

[0091] A short-range pairing module is used to establish a wireless communication connection with the car key when the car key is found;

[0092] The alarm trigger module is used to receive the alarm instruction and forward the alarm instruction to the car key, so that the car key responds to the alarm instruction through the alarm module and issues an alarm.

[0093] In some optional embodiments, the terminal key connection unit includes:

[0094] An information download unit is used to download key information and vehicle key identity information from a server. The key information and vehicle key identity information are information read from the vehicle key and uploaded to the server by the vehicle after the vehicle key is successfully bound to the vehicle;

[0095] A key search unit, used to search for a vehicle key by using the vehicle key identity information;

[0096] An authentication unit, used to perform two-way authentication with the car key through key information when the car key is found;

[0097] The connection unit is used to establish a wireless communication connection with the vehicle key when the authentication is passed.

[0098] In some optional implementations, before the alarm triggering module, the following is further included:

[0099] A signal strength detection module is used to detect the strength information of the wireless communication signal and generate direction information based on the strength information;

[0100] The direction guidance module is used to play direction information to remind the user to move in the direction indicated by the direction information.

[0101] In some optional implementations, the signal strength detection module includes:

[0102] a strength detection unit, configured to sequentially measure the signal strength of the wireless communication signal in a 360-degree direction of the user terminal as strength information;

[0103] The direction information generating unit is used to draw the signal strength in each direction into a sector diagram in the corresponding direction according to a preset radius ratio, and use the diagram obtained by combining the sector diagrams as the direction information.

[0104] In some optional implementations, the information downloading unit includes:

[0105] Login unit, used to log in to the server through the vehicle account;

[0106] a requesting unit, configured to send a vehicle key information acquisition instruction to the server when the login is successful, so that the server searches for key information and vehicle key identity information corresponding to the vehicle account in the server in response to the vehicle key information acquisition instruction;

[0107] The receiving unit is used to receive the key information and vehicle key identity information fed back by the server.

[0108] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0109] The car key finding device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0110] An embodiment of the present application further provides a computer device having the vehicle key finding device shown in FIG. 5 .

[0111] Please refer to Figure 6, which is a schematic diagram of the structure of a car key finding system provided by an optional embodiment of the present application. As shown in Figure 6, the system includes a user terminal and a car key, and the user terminal includes a positioning module. After the user terminal and the car key establish a communication connection within a preset range, the user terminal obtains positioning information based on the positioning module and stores the positioning information locally as the car key positioning information. The user terminal is configured to receive a search command, query the car key positioning information in response to the search command, and then play the car key positioning information to remind the user to go to the location indicated by the car key positioning information to search for the car key.

[0112] Specifically, the explanation of the principles of the system embodiment can refer to the relevant descriptions of the above method embodiment and device embodiment, which will not be repeated here.

[0113] The embodiments of the present application also provide a computer-readable storage medium. The above-mentioned method according to the embodiment of the present application can be implemented in hardware, firmware, or implemented as a computer code that can be recorded in a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned types of memory. It can be understood that a computer, a processor, a microprocessor controller or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor or hardware, the method shown in the above embodiment is implemented.

[0114] Part of the present application may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present application through the operation of the computer. Those skilled in the art should understand that the form in which the computer program instruction exists in a computer-readable medium includes but is not limited to a source file, an executable file, an installation package file, etc. Accordingly, the way in which the computer program instruction is executed by the computer includes but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium that can be accessed by the computer.

[0115] Although the embodiments of the present application have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A method for finding a car key, characterized in that: The method is applied to a user terminal, the user terminal including a positioning module, and the method includes: receiving a search instruction and querying the vehicle key location information in response to the search instruction, wherein the vehicle key location information is the location information closest to the current moment obtained by the user terminal based on the positioning module after the user terminal and the vehicle key establish a communication connection within a preset range; The car key positioning information is played to remind the user to go to the location marked by the car key positioning information to find the car key.

2. The method according to claim 1, characterized in that The step of the user terminal acquiring the vehicle key location information based on the positioning module includes: establishing a wireless communication connection with the vehicle key based on wireless communication pairing technology; receiving a connection beacon sent by the vehicle key at a preset period; detecting whether the wireless communication connection with the vehicle key is disconnected; Among them, when establishing a wireless communication connection with the car key, when disconnecting the wireless communication connection, and each time the connection beacon is received, the current positioning information is obtained based on the positioning module, and the current positioning information is saved in the user terminal as the car key positioning information.

3. The method according to claim 1, characterized in that The car key includes an alarm module. After playing the car key location information, the method further includes: receiving a short-distance pairing instruction, and searching for the vehicle key in response to the short-distance pairing instruction; When the vehicle key is found, a wireless communication connection is established with the vehicle key; An alarm instruction is received and forwarded to the vehicle key, so that the vehicle key issues an alarm in response to the alarm instruction through the alarm module.

4. The method according to claim 2 or 3, characterized in that The step of establishing a wireless communication connection between the user terminal and the vehicle key includes: Downloading key information and vehicle key identity information from a server, wherein the key information and vehicle key identity information are information read from the vehicle key and uploaded to the server by the vehicle after the vehicle key is successfully bound to the vehicle; Searching for the car key using the car key identity information; When the car key is found, two-way authentication is performed between the key information and the car key; When the authentication is successful, a wireless communication connection is established with the vehicle key.

5. The method according to claim 3, characterized in that Before receiving the alarm instruction and forwarding the alarm instruction to the vehicle key, the method further includes: detecting strength information of a wireless communication signal and generating direction information based on the strength information; The direction information is played to remind the user to move in the direction indicated by the direction information.

6. The method according to claim 5, characterized in that The detecting strength information of the wireless communication signal and generating direction information according to the strength information includes: sequentially measuring the signal strength of the wireless communication signal in a 360-degree direction of the user terminal as the strength information; The signal strength in each direction is plotted as a sector diagram in the corresponding direction according to a preset radius ratio, and a graph obtained by combining the sector diagrams is used as the direction information.

7. The method according to claim 4, characterized in that The downloading of the key information and the vehicle key identity information from the server includes: Log in to the server through the vehicle account; When the login is successful, sending a vehicle key information acquisition instruction to the server, so that the server searches the server for the key information and the vehicle key identity information corresponding to the vehicle account in response to the vehicle key information acquisition instruction; Receive the key information and the vehicle key identity information fed back by the server.

8. A car key finding device, characterized in that: The device is applied to a user terminal, the user terminal includes a positioning module, and the device includes: a search module, configured to receive a search instruction and query vehicle key location information in response to the search instruction, wherein the vehicle key location information is location information obtained by the user terminal based on the positioning module after the user terminal and the vehicle key establish a communication connection within a preset range; The positioning reminder module is used to play the car key positioning information to remind the user to go to the location marked by the car key positioning information to find the car key.

9. A car key finding system, characterized in that: The system includes a user terminal and a car key, wherein the user terminal includes a positioning module, wherein: After the user terminal and the car key establish a communication connection, the user terminal obtains positioning information based on the positioning module and stores the positioning information locally as car key positioning information; The user terminal is used to receive a search instruction, query the car key location information in response to the search instruction, and then play the car key location information to remind the user to go to the location marked by the car key location information to find the car key.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the method according to any one of claims 1 to 7.

11. A computer program product, characterized in that The method comprises computer instructions for causing a computer to execute the method according to any one of claims 1 to 7.

Citation Information

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