CN110228447B - Method for realizing keyless entry function of vehicle by using intelligent antenna device and vehicle-mounted system - Google Patents
Method for realizing keyless entry function of vehicle by using intelligent antenna device and vehicle-mounted system Download PDFInfo
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- CN110228447B CN110228447B CN201910515340.0A CN201910515340A CN110228447B CN 110228447 B CN110228447 B CN 110228447B CN 201910515340 A CN201910515340 A CN 201910515340A CN 110228447 B CN110228447 B CN 110228447B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
- B60R25/245—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user where the antenna reception area plays a role
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- 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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Abstract
The invention discloses a method for realizing a keyless entry function of a vehicle by utilizing an intelligent antenna device, wherein the intelligent antenna device is integrated with antennas supporting WiFi, BLE and mobile communication, and the method comprises the following steps: if the mobile equipment detects that the distance between the mobile equipment and the vehicle is reduced to be smaller than a set threshold value, a safe connection channel between the vehicle and the mobile equipment is established by utilizing the intelligent antenna device; performing bidirectional identity authentication between the vehicle and the mobile equipment based on the secure connection channel, and detecting the position of the mobile equipment by using the intelligent antenna device after the authentication is passed; triggering a keyless entry function of the vehicle based on the detected location of the mobile device. In the invention, the two-way identity authentication and the position detection of the mobile equipment are realized by utilizing the vehicle-mounted intelligent antenna device, so that the requirement of carrying out higher-level encryption on the transmission data is met, an additional vehicle-mounted computer node is not needed, and the expenses of hardware, wiring and installation are reduced.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a method for realizing a keyless entry function of a vehicle by utilizing an intelligent antenna device and a vehicle-mounted system.
Background
At present, many vehicles are provided with a Keyless entry system, pke (passive key entry) for short, so as to provide convenience and safety to the vehicle users to the maximum extent.
In a keyless entry system, there is no real key, but the vehicle user does not need to take out the key when entering the vehicle. When a user approaches the vehicle, the vehicle can automatically or under the condition that a doorknob key is triggered to unlock a door lock through a positioning technology and an advanced user identity code identification scheme, and the user is allowed to enter the vehicle. And allows the user to start the engine by a one-touch start button upon detecting that the key is in-vehicle conditions. The keyless entry system automatically performs a locking operation when the user gets off and leaves the vehicle for a distance.
The keyless entry system of the vehicle-mounted end detects the position of the intelligent key and authenticates the legality of the key by the low-frequency antenna array arranged at different positions around the vehicle body in cooperation with the high-frequency antenna. Radio waves radiated from the low-frequency antenna array are sensed by the smart key, and RSSI (Received Signal Strength Indication) is fed back to the in-vehicle base station via high-frequency radio waves, and the in-vehicle base station detects the relative position of the smart key.
Two-way communication technology based on BLE (Bluetooth Low Energy) technology has also recently emerged to implement keyless entry systems in which a mobile device (e.g., a smartphone) replaces a smart key. The BLE technology is a short-range wireless communication technology, and data exchange between a fixed device and a mobile device can be realized by using a radio with a 2.4GHz frequency band.
In the keyless entry system based on BLE technology, a user can control functions such as door unlocking and window lifting of a vehicle in a short distance mode through a mobile device control interface. The BLE system has low power consumption and good safety characteristic, and is very suitable for a vehicle remote control system based on mobile equipment.
In the existing keyless entry system based on the BLE technology, before the position of the mobile device is detected by using a BLE signal, the vehicle-mounted BLE module needs to perform bidirectional identity authentication with the mobile device at first, and the position detection is started after the identity authentication is successful. In the prior art, the vehicle-mounted BLE module generally performs bidirectional identity authentication with the mobile device through a bluetooth channel or a background server. However, the bandwidth of the bluetooth channel is narrow, and the transmission data cannot be encrypted at a higher level, so that the security is poor. The scheme of using the background server needs the intervention of the background server, so that the system is more complex and consumes long time.
In the existing keyless entry system based on the BLE technology, due to the propagation characteristic of high-frequency electric waves in a 2.4GHz frequency band, electric waves radiated by a BLE device are easily reflected and superposed to generate level fluctuation, and a distance attenuation curve of a high-frequency signal is more difficult to accurately position a mobile device than a low-frequency electric wave. To solve this difficulty, an antenna array is adopted in the prior art, and a plurality of directional antenna units are placed at different positions of a vehicle body, such as a front bumper and a rear bumper of a vehicle, a two-way rearview mirror, each door handle and the like. Through analyzing and calculating the strength of electric waves received by the antenna array unit in all directions, 360-degree omnibearing coverage can be realized, the antennas can be switched by the receiver in a time-sharing manner to collect the RSSI from each antenna respectively, and then the distance between a user and a vehicle and the direction of the user are accurately detected by a certain algorithm. However, to ensure detection accuracy, the antenna elements must be sufficiently large and the elements must be sufficiently far apart. However, the high-frequency coaxial cable is expensive, and the electric wave loss is increased by the overlong cable, so that the scheme of the antenna array system has the defects of high cost and insufficient detection precision. In addition, the effective detection distance of the BLE technology is short (generally about 10 meters), and long-distance positioning cannot be realized.
Disclosure of Invention
The present invention is directed to a method and an on-board system for implementing a keyless entry function of a vehicle using a smart antenna device, which may solve one or more of the problems set forth above in the related art.
The embodiment of the invention provides a method for realizing a keyless entry function of a vehicle by utilizing a smart antenna device, wherein the smart antenna device is integrated with antennas supporting WiFi, BLE and mobile communication, and the method comprises the following steps:
if the mobile device detects that the distance between the mobile device and the vehicle is reduced to be less than a set threshold value, a safe connection channel between the vehicle and the mobile device is established by the intelligent antenna device,
triggering a keyless entry function of the vehicle based on the detected location of the mobile device.
Optionally, the mobile device determines whether a distance between the mobile device and the vehicle decreases to be smaller than a set threshold according to a GPS (Global Positioning System) location of the mobile device and a GPS location of the vehicle stored in advance, and sends a wake-up message to the smart antenna device to trigger establishment of the secure connection channel if the determination result is yes.
Optionally, after the vehicle is turned off, the mobile device obtains the GPS position of the vehicle through the smart antenna device and stores the GPS position for distance detection when approaching the vehicle next time.
Optionally, the secure connection channel is a mobile communication channel or a WIFI channel established by using the smart antenna apparatus.
Optionally, the secure connection channel is based on WIFI WPA2 technology or TLS technology or conforms to BLE OOB protocol
Optionally, the location of the mobile device is detected using a BLE antenna based on BLE5.1 technical specification integrated in the smart antenna apparatus.
An embodiment of the present invention further provides an on-board system for implementing a keyless entry function of a vehicle, the on-board system including a smart antenna device and a vehicle body control unit, the smart antenna device having WiFi, BLE and mobile communication supporting antennas integrated therein,
the intelligent antenna device is used for establishing a safe connection channel between the vehicle and the mobile equipment through communication between the intelligent antenna device and the mobile equipment when the mobile equipment detects that the distance between the intelligent antenna device and the vehicle is reduced to be smaller than a set threshold value, performing bidirectional identity authentication between the vehicle and the mobile equipment based on the safe connection channel, and detecting the position of the mobile equipment after the authentication is passed,
the vehicle body control unit is used for triggering a keyless entry function of the vehicle according to the detected position of the mobile equipment.
Optionally, the secure connection channel is a mobile communication channel or a WIFI channel established by using the smart antenna apparatus.
Optionally, the secure connection channel is based on WIFI WPA2 technology or TLS technology or a secure connection channel conforming to BLE OOB protocol.
Optionally, the location of the mobile device is detected using a BLE antenna based on BLE5.1 technical specification integrated in the smart antenna apparatus.
The embodiment of the invention also provides a system for realizing the keyless entry function of the vehicle, which comprises the mobile equipment and the vehicle-mounted system provided by the invention, wherein the mobile equipment judges whether the distance between the mobile equipment and the vehicle is reduced to be smaller than a set threshold value according to the GPS position of the mobile equipment and the pre-stored GPS position of the vehicle, and sends a wake-up message to the intelligent antenna device to trigger the establishment of the safe connection channel when the judgment result is yes.
Optionally, after the vehicle is turned off, the mobile device obtains the GPS position of the vehicle through the smart antenna device and stores it for distance detection the next time the vehicle is approached.
The method for realizing the keyless entry function of the vehicle by utilizing the intelligent antenna device and the vehicle-mounted system have at least the following advantages:
1. the bidirectional identity authentication between the vehicle and the mobile equipment is realized by utilizing the safe connecting channel established by the vehicle-mounted intelligent antenna device, so that the requirement of carrying out higher-level encryption on transmission data is met, and the safety of the authentication process is improved.
2. Adopt the smart antenna device, to support wiFi, BLE and mobile communication antenna integrated to on-vehicle smart antenna device to need not to set up extra on-vehicle computer node, need not the complicated wiring and the calibration work of vehicle production process, reduced the expense of hardware and wiring and installation.
3. The BLE antenna based on the BLE5.1 technical specification is adopted, so that the position detection requirement of the high-precision mobile device can be met.
4. The mobile communication technology, the GPS technology and the BLE technology are combined, so that the mobile device and the vehicle can be remotely positioned, and a richer vehicle keyless entry service function is provided.
5. The identity authentication is actively triggered by using the distance detection of the mobile equipment, but not passively triggered by polling, so that the identity authentication in a longer range (or in advance) is realized, and the identity authentication is not limited by the communication range of the positioning antenna any more.
Drawings
Further details and advantages of the present invention will become apparent from the detailed description provided hereinafter. It is to be understood that the following drawings are merely illustrative and not drawn to scale and are not to be considered limiting of the present application, the detailed description of which is to be read with reference to the accompanying drawings, wherein:
fig. 1 shows a flowchart of a method for implementing a keyless entry function of a vehicle using a smart antenna device according to an embodiment of the present invention.
Fig. 2 shows an on-board system for implementing a keyless entry function of a vehicle according to an embodiment of the invention.
Fig. 3 shows a specific application scenario of the method according to the invention for implementing a keyless entry function of a vehicle.
Detailed Description
Embodiments of the present invention are described below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of, and enabling description for, those skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it should be understood that the invention is not limited to specific described embodiments. Rather, any combination of the features and elements described below is contemplated as carrying out the invention, whether or not they relate to different embodiments. Thus, the following aspects, features, embodiments and advantages are merely illustrative and are not considered elements or limitations of the claims except where explicitly recited in a claim.
The invention aims to provide a method and a vehicle-mounted system for realizing a keyless entry function of a vehicle, so as to meet the requirements of enhancing information security and detecting the position of a mobile device.
Referring now to fig. 1, a flow diagram of a method for implementing a keyless entry function for a vehicle using a smart antenna assembly is shown, in accordance with an embodiment of the present invention. The smart antenna device may be a shark fin-shaped smart antenna device disposed on a roof of the vehicle. The intelligent antenna device provided by the invention is integrated with antennas supporting WiFi, BLE and mobile communication.
And S101, if the distance between the mobile equipment and the vehicle is reduced to be smaller than a set threshold value, establishing a safe connection channel between the vehicle and the mobile equipment by using the intelligent antenna device.
Specifically, the mobile device judges whether the distance between the mobile device and the vehicle is reduced to be smaller than a set threshold value according to the GPS position of the mobile device and the pre-stored GPS position of the vehicle, and sends a wake-up message to the intelligent antenna device to trigger the establishment of the safe connection channel when the judgment result is yes. When the user last finishes using the vehicle and leaves the vehicle, a mobile device (e.g., a smartphone) carried with the user records the GPS location of the vehicle through existing two-way communication with the vehicle (e.g., any of existing WiFi, BLE, and mobile communication). The mobile device thus stores therein electronic fence range information for the vehicle, such as a 25-meter radius circle range centered on the GPS location of the vehicle.
When the mobile device approaches the vehicle and monitors that the mobile device enters the range of the electronic fence of the vehicle according to the collected GPS position information of the mobile device (namely, the mobile device judges whether the distance between the mobile device and the vehicle is reduced to be less than 25 meters), the mobile device can send a wake-up message to the vehicle through a mobile communication network. After receiving the wake-up message from the mobile terminal, the smart antenna apparatus of the vehicle is woken up and establishes a secure connection channel (e.g., a mobile communication channel such as 3G, 4G, etc. or a WIFI channel) with the mobile device. The secure connection can be based on any mainstream mode at present, such as WIFI WPA2 technology based on passwords and TLS bidirectional authentication technology of channels above a TCP layer, or other customized modes (such as implementing identity authentication and encrypted transmission based on mechanisms such as public and private keys or Pre-Shared key). Preferably, a secure connection channel conforming to BLE OOB protocol is established. The adoption of a safety mechanism conforming to the BLE OOB protocol can improve the protection against MITM attacks.
And S102, performing bidirectional identity authentication and information interaction between the vehicle and the mobile equipment based on the safe connection channel.
The vehicle and the mobile device may interact with the nonce and commitment messages needed for BLE pairing over the secure connection channel. After the two parties confirm that the other party is legal equipment, the vehicle and the mobile equipment perform information interaction (such as transmission of sensitive information such as a key for a keyless entry function).
And step S103, detecting the position of the mobile equipment by using the intelligent antenna device.
Preferably, the location of the mobile device is detected using a BLE antenna based on BLE5.1 technical specification integrated in said smart antenna apparatus. The Bluetooth technical alliance (Bluetooth Special Interest Group) publishes BLE5.1 technical specifications in 2019 and 1 month, and the specifications strengthen the function of finding directions, so that the positioning precision of the mobile equipment can reach the centimeter level, and the requirement of high-precision mobile equipment position detection can be met.
By adopting the intelligent antenna device integrated with the antenna supporting WiFi, BLE and mobile communication, no additional vehicle-mounted computer node is needed, no complex wiring and calibration work in the vehicle production process is needed, and the expenditure of hardware, wiring and installation is reduced.
And step S104, triggering the keyless entry function of the vehicle according to the detected position of the mobile equipment.
In particular, a keyless entry function of the vehicle may be triggered by a body control unit (e.g., an on-board computer) depending on the detected position of the mobile device.
Referring now to FIG. 2, an in-vehicle system for implementing a keyless entry function for a vehicle is shown in accordance with an embodiment of the present invention. The on-vehicle system includes a smart antenna device 21 and a vehicle body control unit 22. The smart antenna device 21 may be a shark fin-shaped smart antenna device disposed on the roof of the vehicle. The smart antenna device 21 has integrated therein an antenna for supporting WiFi function, BLE function, and mobile communication.
The smart antenna device 21 establishes a secure connection channel between the vehicle and the mobile device when the distance between the mobile device and the vehicle is reduced to be smaller than a set threshold value, performs bidirectional identity authentication between the vehicle and the mobile device based on the secure connection channel, and detects the position of the mobile device after the authentication is passed. The secure connection channel is a mobile communication channel or a WIFI channel established by using the smart antenna device 21. The secure connection channel may specifically be a secure connection channel based on WIFI WPA2 technology or TLS technology or compliant with BLE OOB protocol. Preferably, the location of the mobile device may be detected using BLE antennas based on the BLE5.1 specification integrated in the smart antenna device 21.
The body control unit 22 triggers the keyless entry function of the vehicle according to the position of the mobile device detected by the smart antenna device 21.
An embodiment of the invention also provides a system for realizing the keyless entry function of the vehicle, which comprises the mobile device and the vehicle-mounted system provided by the invention. The mobile device can judge whether the distance between the mobile device and the vehicle is reduced to be smaller than a set threshold value according to the GPS position of the mobile device and the pre-stored GPS position of the vehicle, and sends a wake-up message to the intelligent antenna device of the vehicle to trigger the establishment of the safe connection channel when the judgment result is yes.
Fig. 3 shows a specific application scenario of the method according to the invention for implementing a keyless entry function of a vehicle.
As shown in fig. 3, the mobile device is approaching a flameout parked vehicle. If the mobile device comes within 25 meters of the vehicle (located according to GPS technology), the onboard smart antenna assembly is activated for secure connectivity and two-way authentication. If the mobile equipment enters a range of 10 meters from the vehicle (positioning is carried out according to BLE AOA/AOD distance measurement technology), the vehicle lights are turned on, and the vehicle searching horn rings. If the mobile device comes within 2 meters of the vehicle (located according to BLE AOA/AOD ranging technology), the vehicle is automatically unlocked for a period of time for the user to enter the vehicle. After the mobile device enters the vehicle, a one-touch start enable is triggered. The vehicle automatically locks after the mobile device is more than 2 meters away from the vehicle.
In the invention, the bidirectional identity authentication between the vehicle and the mobile equipment is realized by utilizing the safety connection channel established by the vehicle-mounted intelligent antenna device so as to meet the requirement of carrying out higher-level encryption on the transmission data, thereby improving the safety of the authentication process.
In the invention, the intelligent antenna device is adopted, and the antennas supporting WiFi, BLE and mobile communication are integrated into the vehicle-mounted intelligent antenna device, so that additional vehicle-mounted computer nodes are not needed, complicated wiring and calibration work in the vehicle production process are not needed, and the expenditure of hardware, wiring and installation is reduced.
According to the invention, the BLE antenna based on the BLE5.1 technical specification is adopted, so that the position detection requirement of the high-precision mobile equipment can be met.
According to the invention, the mobile communication technology, the GPS technology and the BLE technology are combined, so that the mobile equipment and the vehicle can be remotely positioned, and a richer vehicle keyless entry service function is provided.
In the invention, the identity authentication is actively triggered by using the distance detection of the mobile equipment instead of passively triggering the identity authentication by polling, so that the identity authentication in a longer range (or in advance) is realized, and the identity authentication is not limited by the communication range of the positioning antenna any more.
It should be noted that the above description is only an example and not a limitation of the present invention. In other embodiments of the invention, the method may have more, fewer, or different steps, and the order, inclusion, or functional relationship between the steps may be different from that described and illustrated. For example, generally, steps may be combined into a single step, or a single step may be split into multiple steps. For a person skilled in the art, the sequence of the steps is not changed without creative efforts and is within the protection scope of the invention.
The technical solution of the present invention may be substantially implemented or partially implemented in the prior art, or all or part of the technical solution may be implemented in a software product, which is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor or a microcontroller to execute all or part of the steps of the method according to the embodiments of the present invention.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Although the present invention has been described with reference to the preferred embodiments, it is not to be limited thereto. Various changes and modifications within the spirit and scope of the present invention will become apparent to those skilled in the art from this disclosure, and it is intended that the scope of the present invention be defined by the appended claims.
Claims (10)
1. A method of implementing a keyless entry function of a vehicle using a smart antenna device, wherein the smart antenna device is provided in a vehicle and integrates a WiFi antenna, a BLE antenna, and a mobile communication antenna, the method comprising:
the method comprises the steps that a vehicle receives a wake-up message from a mobile device, wherein the wake-up message is sent to the vehicle through a mobile communication network when the mobile device detects that the distance between the mobile device and the vehicle is reduced to be smaller than a set threshold value;
after receiving a wake-up message from the mobile device, the smart antenna apparatus of the vehicle is woken up and establishes a secure connection channel with the mobile device, wherein the secure connection channel is a WIFI channel;
the vehicle and the mobile equipment interact with a random number and a commitment message required by BLE pairing on the secure connection channel, and after the two sides confirm that the other side is legal equipment, the vehicle and the mobile equipment perform information interaction on the secure connection channel;
detecting a location of the mobile device using the BLE antenna in the smart antenna apparatus, an
Triggering a keyless entry function of the vehicle according to the detected position of the mobile device;
the vehicle and the mobile device perform information interaction on the safe connecting channel, and the method comprises the following steps: the vehicle and the mobile device transmit a key for keyless entry functionality over the secure connection channel.
2. The method according to claim 1, wherein the mobile device judges whether the distance between the mobile device and the vehicle decreases to be less than a set threshold value according to the own GPS position and the pre-stored GPS position of the vehicle, and sends the wake-up message to the smart antenna device when the judgment result is yes.
3. The method of claim 1, wherein after the vehicle is turned off, the mobile device obtains the vehicle's GPS location via the smart antenna device and stores it for distance detection the next time it approaches the vehicle.
4. The method according to claim 1, wherein the secure connection channel is a secure connection channel based on WIFI WPA2 technology or TLS technology or compliant with BLE OOB protocol.
5. The method according to claim 1, wherein the BLE antenna is a BLE antenna based on BLE5.1 technical specifications.
6. An on-board system for realizing the keyless entry function of a vehicle is characterized by comprising a smart antenna device and a vehicle body control unit, wherein a WiFi antenna, a BLE antenna and a mobile communication antenna are integrated in the smart antenna device,
the intelligent antenna device is used for receiving a wake-up message sent by the mobile equipment through a mobile communication network when the mobile equipment detects that the distance between the mobile equipment and the vehicle is reduced to be smaller than a set threshold value, and after receiving the wake-up message, the intelligent antenna device is used for establishing a safe connection channel between the vehicle and the mobile equipment, wherein the safe connection channel is a WIFI channel; the smart antenna device is configured to perform bidirectional identity authentication between the vehicle and the mobile device based on the secure connection channel, and after the authentication is passed, detect the location of the mobile device by using the BLE antenna, where performing bidirectional identity authentication between the vehicle and the mobile device based on the secure connection channel includes: interacting, between the vehicle and the mobile device, a nonce and a commitment message required for BLE pairing based on the secure connection channel;
the vehicle body control unit is used for triggering a keyless entry function of the vehicle according to the detected position of the mobile equipment;
and after the vehicle and the mobile equipment confirm that the opposite side is legal equipment, the vehicle and the mobile equipment transmit a key for a keyless entry function on the secure connection channel.
7. The in-vehicle system of claim 6, wherein the secure connection channel is a secure connection channel based on WIFI WPA2 technology or TLS technology or compliant with a BLE OOB protocol.
8. The in-vehicle system of claim 6, wherein the BLE antenna is a BLE antenna based on a BLE5.1 technical specification.
9. A system for realizing the keyless entry function of a vehicle, the system comprises a mobile device and the vehicle-mounted system according to any one of claims 6 to 8, wherein the mobile device judges whether the distance between the mobile device and the vehicle is reduced to be less than a set threshold value according to the GPS position of the mobile device and the pre-stored GPS position of the vehicle, and sends the wake-up message to the intelligent antenna device when the judgment result is yes.
10. The system of claim 9, wherein after the vehicle is turned off, the mobile device obtains the GPS location of the vehicle through the smart antenna device and stores it for distance detection the next time the vehicle is approached.
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| CN201910515340.0A CN110228447B (en) | 2019-06-14 | 2019-06-14 | Method for realizing keyless entry function of vehicle by using intelligent antenna device and vehicle-mounted system |
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| CN112822634A (en) * | 2019-10-31 | 2021-05-18 | 上海博泰悦臻电子设备制造有限公司 | Remote interaction method and system |
| CN113224506B (en) * | 2021-05-18 | 2022-05-10 | 远峰科技股份有限公司 | Automobile and door handle thereof |
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