CN115182661A - System for controlling opening of tail gate of vehicle based on BLE - Google Patents

System for controlling opening of tail gate of vehicle based on BLE Download PDF

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Publication number
CN115182661A
CN115182661A CN202111463998.5A CN202111463998A CN115182661A CN 115182661 A CN115182661 A CN 115182661A CN 202111463998 A CN202111463998 A CN 202111463998A CN 115182661 A CN115182661 A CN 115182661A
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CN
China
Prior art keywords
vehicle
control device
avnt
ble
tailgate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111463998.5A
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Chinese (zh)
Inventor
胡西振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Kia Corp
Original Assignee
Hyundai Motor Co
Kia Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyundai Motor Co, Kia Corp filed Critical Hyundai Motor Co
Publication of CN115182661A publication Critical patent/CN115182661A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/77—Power-operated mechanisms for wings with automatic actuation using wireless control
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • 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
    • G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
    • 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
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • 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
    • 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
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
    • G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle

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

Abstract

The invention relates to a system for controlling opening of a tail gate of a vehicle based on BLE. The system comprises: the central control device is electrically connected with the AVNT intelligent interconnection device and is configured to detect a pressing signal of a vehicle tail door opening button; an AVNT smart interconnect device in communication with the nomadic device via Bluetooth, configured to determine whether the nomadic device is present within a set range of the vehicle and to determine whether the detected nomadic device is authorized; a vehicle body control device electrically connected with the central control device and configured to determine whether to execute an opening operation of a vehicle tail gate; and a tailgate control device electrically connected to the central control device and the vehicle body control device, respectively, and configured to control opening of the vehicle tailgate according to a determination result from the vehicle body control device. According to the system for controlling the opening of the tail gate of the vehicle based on BLE, disclosed by the invention, through Bluetooth positioning and verification, the opening of the tail gate of the vehicle can be controlled by using a vehicle key and a mobile terminal, and the convenience in use of the vehicle is improved.

Description

System for controlling opening of tail gate of vehicle based on BLE
Technical Field
The invention relates to the technical field of vehicle electronics, in particular to a Bluetooth Low Energy (BLE) -based vehicle tail gate control system.
Background
With the development of advanced network information technology, big data analysis technology and electronic sensing control technology, vehicle-mounted multimedia technology is becoming more and more extensive, and vehicle-mounted multimedia is increasingly serving as a vehicle brain. Based on the vehicle-mounted multimedia technology, the interaction between the vehicle and the mobile terminal is more convenient and efficient, the vehicle allows connection to be established between the mobile terminal and the vehicle through Bluetooth, so that a customer can control part of functions of the vehicle through APP of the mobile terminal, and a lot of choices and convenient services are provided for the customer.
In order to improve the convenience of customers for the control of the vehicle tailgate, most vehicle manufacturers have updated the manual control of the opening and closing of the vehicle tailgate to the control of the vehicle tailgate using a key fob. However, compared with the necessity and strong functions of the mobile terminal, the remote control key has a single function, which increases the types of articles carried by the customer and also increases the manufacturing cost of the vehicle manufacturer. Therefore, how to use the mobile terminal to replace the remote control key for vehicle-to-vehicle interconnection becomes an important target for vehicle manufacturers.
The above statements in the background of the invention are provided merely to facilitate a thorough understanding of the present technical solutions (aspects of technical means used, technical problems solved, technical effects produced, etc.), and should not be taken as an admission or any form of suggestion that this message forms prior art already known to a person skilled in the art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a system for controlling the opening of a tail gate of a vehicle based on BLE.
According to an embodiment of the invention, there is provided a system for controlling opening of a tailgate of a vehicle based on BLE, the system comprising: the central control device is electrically connected with the AVNT intelligent interconnection device and is configured to detect a pressing signal of a tail gate opening button of the vehicle and send the detected pressing signal of the tail gate opening button to the AVNT intelligent interconnection device and the vehicle body control device; an AVNT smart interconnect device that communicates with the mobile device via Bluetooth, the AVNT smart interconnect device being configured to determine whether the mobile device is present within a set range of the vehicle and determine whether the detected mobile device is authorized in response to a received push signal of a tailgate open button from the central control device; a vehicle body control device electrically connected to the central control device, the vehicle body control device configured to sequentially confirm whether there is a detection result of a vehicle key and a BLE verification result of the mobile device according to a predetermined priority in response to a received pressing signal of a tailgate opening button from the central control device, determine whether to perform an opening operation of a tailgate of a vehicle, and transmit the determination results to the central control device and the tailgate control device; and a tailgate control device electrically connected to the central control device and the vehicle body control device, respectively, the tailgate control device being configured to control opening of the tailgate of the vehicle in accordance with a determination result from the vehicle body control device.
Preferably, the vehicle body control device is configured to execute control of an open operation of the vehicle tail gate by the vehicle key if the presence of the vehicle key is detected; the body control device is further configured to perform a BLE verification operation of the mobile device if the presence of the vehicle key is not detected.
Preferably, the AVNT smart interconnect device is configured to determine that BLE verification operations of the mobile device have failed if it is determined that the mobile device is not present within a set range of the vehicle or if it is determined that the mobile device is detected as not being authorized; the AVNT intelligent interconnection device is further configured to send an identity authentication request to the vehicle body control device for a period of time to perform identity authentication between the AVNT intelligent interconnection device and the vehicle body control device if it is determined that the mobile device is present within the set range of the vehicle and it is determined that the detected mobile device is authorized.
Preferably, the AVNT smart interconnect device is configured to compare BLE verification information of the mobile device detected within a set range of the vehicle with pre-stored BLE verification information when determining whether the detected mobile device is authorized; the AVNT intelligent interconnect device is further configured to determine that the detected mobile device is an authorized mobile device if BLE authentication information of the detected mobile device matches pre-stored BLE authentication information.
Preferably, the period of time is set to a fixed period of time in a range of 1.5 seconds or less.
Preferably, the set range of the vehicle is a distance range between the mobile device and the AVNT intelligent interconnection device, and the distance range includes a range within 3 m.
Preferably, the vehicle body control device is configured to perform identity authentication with the AVNT intelligent interconnection device when receiving an identity authentication request from the AVNT intelligent interconnection device within the period of time; the vehicle body control device is further configured to determine that BLE verification operation of the mobile device is successful if identity authentication of the AVNT intelligent interconnection device is successful.
Preferably, the communication between the central control device and the AVNT intelligent interconnection device and the vehicle body control device is performed through a controller area network.
Preferably, the identity authentication between the AVNT intelligent interconnection device and the vehicle body control device is performed by learning to share authentication information.
By adopting the technical scheme, the invention has the following beneficial effects:
the system for controlling the opening of the tail gate of the vehicle based on BLE according to the embodiment of the invention enables the opening of the tail gate of the vehicle to be controlled by using the vehicle key and the mobile terminal through Bluetooth positioning and verification, thereby improving the convenience of vehicle use.
Drawings
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. For purposes of clarity, the same reference numbers will be used in different drawings to identify the same elements. It is noted that the drawings are merely schematic and are not necessarily drawn to scale. In these drawings:
figure 1 is a block diagram of a system for controlling vehicle tailgate opening based on BLE according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the range of distances of a mobile device from an AVNT smart interconnect device in accordance with an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below, which are carried out on the premise of the technical scheme of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the embodiments described below.
Figure 1 shows a block diagram of a system for controlling tailgate opening in a vehicle based on BLE according to an embodiment of the invention.
The system for controlling the opening of the tail gate of the vehicle based on BLE according to the embodiment of the invention comprises the following components: an AVNT (Audio Video Navigation communication) smart internet device 110, a mobile device 120, a central control device 130, a vehicle body control device 140, and a tailgate control device 150.
The AVNT smart internet device 110 and the mobile device 120 communicate via bluetooth, and the central control device 130 is electrically connected to the AVNT smart internet device 110, the body control device 140, and the tailgate control device 150, respectively.
The central control apparatus 130 detects a pressing signal of the tailgate open button of the vehicle and transmits the detected pressing signal of the tailgate open button to the AVNT smart internet apparatus 110 and the vehicle body control apparatus 140.
The AVNT smart interconnect device 110 determines whether a mobile device is present within a set range of the vehicle and determines whether the detected mobile device is authorized in response to a received push signal of the tailgate open button from the central control device 130.
The AVNT intelligent interconnection device 110 integrates practical functions such as AI intelligent voice control, remote control, mobile phone real-time interconnection, GPS navigation, and the like. BLE technology is a short-range, low-cost, interoperable wireless technology that utilizes many intelligent means to minimize power consumption. The AVNT smart internet appliance 110 controls its bluetooth module to detect the user's mobile device 120 and establish a wireless connection with the user's mobile device 120. When the user's mobile device 120 moves close to the vehicle, the user's mobile device 120 may establish a communication connection with the AVNT smart internet device 110 in the vehicle and exchange data through Bluetooth Low Energy (BLE) communication technology.
In the embodiment of the present invention, the set range of the vehicle refers to the distance D between the mobile device 120 and the AVNT smart internet apparatus 110, and referring to fig. 2, a schematic diagram of the distance range between the mobile device and the AVNT smart internet apparatus 110 is shown. In the embodiment of the present invention, zone 0 and zone 1 are utilized to detect the distance between the mobile device 120 and the AVNT smart interconnect device 110, i.e., the setting range of the vehicle is within 3m, but the present invention is not limited thereto.
[ Table 1]
Region(s) Distance between mobile device and AVNT intelligent interconnection device
Region 0 Typically 1 m. + -. 0.2m (short range)
Region 1 Within 3m (short distance)
Region 2 12m to 15m (intermediate distance)
Region 3 Minimum 300m + -3 m (long distance)
Region 4 Over 300m
The AVNT smart interconnect device 110 may detect a mobile device within a set range of the vehicle, establish a connection with the detected mobile device through bluetooth communication, acquire BLE verification information of the detected mobile device, and compare the acquired BLE verification information with pre-stored BLE verification information. And if the acquired BLE authentication information is matched with the prestored BLE authentication information, determining that the detected mobile device is an authorized mobile device.
BLE authentication information for mobile device 120 is used to identify the detected mobile device including, but not limited to, identification code information for the mobile device, password information sent by the mobile device, PIN code information sent by the mobile device, and the like.
In order to ensure the security of the authorization information of the mobile device, the authorization information of the mobile device needs to be stored securely, for example, by using a key storage method. The AVNT smart internet appliance 110 pre-stores authorization information of the mobile device by registering the mobile device with an application of the vehicle tailgate opening function.
In embodiments of the present invention, the mobile device 120 may be, but is not limited to, various personal computers, laptops, smartphones, tablets, and portable wearable devices. Preferably, the mobile device is a smartphone.
According to an embodiment of the present invention, AVNT smart interconnect device 110 determines that BLE verification operations of the mobile device have failed if it determines that no mobile device is present within a set range of the vehicle or if it determines that the mobile device is detected as not being authorized; if the AVNT smart interconnect device 110 determines that a mobile device is present within the set range of the vehicle and determines that the detected mobile device is authorized, an authentication request is sent to the body control device for a period of time to perform authentication between the AVNT smart interconnect device 110 and the body control device 140. The period of time is set to a fixed period of time ranging from 1.5 seconds or less, but the present invention is not limited thereto.
Body control device 140 may communicate with AVNT smart interconnect device 110 via central control device 130. The vehicle body control device 140 is electrically connected to the central control device 130, and communication between them is performed via a B _ CAN (vehicle body control device area network), and the central control device 130 is electrically connected to the AVNT smart interconnection device 110, and communication between them is performed via an MM _ CAN.
The vehicle body control device 140 sequentially confirms whether the detection result of the vehicle key and the BLE verification result of the mobile device are present or not and successfully in accordance with a predetermined priority in response to the received pressing signal of the tailgate opening button from the central control device 130, determines whether to perform an opening operation of the tailgate of the vehicle, and transmits the determination result to the central control device.
Wherein the detection of the presence of the vehicle key is performed by the vehicle body control device 140, and here, the detection process of the presence of the vehicle key is a well-known technology in the art and will not be described in detail herein.
If the presence of the vehicle key is detected, the vehicle body control device 140 performs control of the opening operation of the vehicle tailgate by the vehicle key; further, if the presence of the vehicle key is not detected, the vehicle body control device 140 performs BLE verification operation of the mobile device.
The vehicle body control device 140 may perform the authentication with the AVNT intelligent interconnection device when receiving the authentication request from the AVNT intelligent interconnection device within the period of time after receiving the pressing signal of the tailgate open button from the central control device 130; if the identity authentication of the AVNT intelligent interconnection device is successful, the body control device 140 determines that the BLE verification operation of the mobile device is successful.
The authentication information is shared by learning in the authentication between AVNT smart interconnection device 130 and vehicle body control device 140.
The vehicle body control device 140 according to the embodiment of the present invention sequentially confirms whether the detection result of the presence of the vehicle key and the BLE verification result of the mobile device are successful or not in accordance with a predetermined priority, determines whether to perform the opening operation of the tailgate of the vehicle, and transmits the determination results to the central control device 130 and the tailgate control device 150.
The tailgate control device 150 may be electrically connected to the central control device 130 and the vehicle body control device 140, respectively, and may control the opening of the vehicle tailgate according to the determination result from the vehicle body control device 130. The communication between the tailgate control device 150 and the central control device 130 and the vehicle body control device 140 is performed via B _ CAN, but the communication method is not limited to the CAN bus communication method described above. The vehicle tail gate can be a mechanical tail gate or an electric tail gate.
Exemplary embodiments of the present invention provide a system for controlling the opening of a tailgate of a vehicle based on a BLE manner, thereby enabling more convenient and safe use of the vehicle. By using the Bluetooth communication mode, the vehicle user can realize the opening function of the vehicle tail gate without any operation on the key, thereby realizing the keyless opening of the vehicle tail gate.
The various embodiments of the invention are not an exhaustive list of all possible combinations, but are intended to describe representative aspects of the invention, and what is described in the various embodiments can be applied independently or in combinations of two or more.
The above description of exemplary embodiments has been presented only to illustrate the technical solutions of the present invention, and is not intended to be exhaustive or to limit the invention to the precise forms described. Obviously, many modifications and variations are possible in light of the above teaching to those skilled in the art. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to thereby enable others skilled in the art to understand, implement and utilize the invention in various exemplary embodiments and with various alternatives and modifications. It is intended that the scope of the invention be defined by the following claims and their equivalents.

Claims (9)

1. A system for controlling opening of a tailgate of a vehicle based on BLE, the system comprising:
the central control device is electrically connected with the AVNT intelligent interconnection device and is configured to detect a pressing signal of a tail gate opening button of the vehicle and send the detected pressing signal of the tail gate opening button to the AVNT intelligent interconnection device and the vehicle body control device;
an AVNT smart interconnect device that communicates with the mobile device via Bluetooth, the AVNT smart interconnect device being configured to determine whether the mobile device is present within a set range of the vehicle and determine whether the detected mobile device is authorized in response to a received push signal of a tailgate open button from the central control device;
a vehicle body control device electrically connected to the central control device, the vehicle body control device being configured to sequentially confirm whether a detection result of a vehicle key and a BLE verification result of the mobile device are present or not according to a predetermined priority in response to a received push signal of a tailgate opening button from the central control device, determine whether to perform an opening operation of a tailgate of the vehicle, and transmit the determination results to the central control device and the tailgate control device;
and a tailgate control device electrically connected to the central control device and the vehicle body control device, respectively, the tailgate control device being configured to control opening of the tailgate of the vehicle in accordance with a determination result from the vehicle body control device.
2. The system for controlling opening of a vehicle tailgate based on BLE according to claim 1, wherein the vehicle body control device is configured to perform control of an opening operation of the vehicle tailgate by a vehicle key if the presence of the vehicle key is detected;
the vehicle body control device is further configured to perform a BLE verification operation of the mobile device if the presence of the vehicle key is not detected.
3. The system for controlling opening of a tailgate of a vehicle based on BLE according to claim 1, wherein the AVNT smart interconnect device is configured to determine that BLE verification operation of the mobile device failed if it is determined that no mobile device is present within a set range of the vehicle or it is determined that the detected mobile device is not authorized;
the AVNT intelligent interconnection device is further configured to send an identity authentication request to the vehicle body control device for a period of time to perform identity authentication between the AVNT intelligent interconnection device and the vehicle body control device if it is determined that the mobile device is present within the set range of the vehicle and it is determined that the detected mobile device is authorized.
4. The system according to claim 1, wherein the AVNT intelligent interconnection device is configured to compare BLE verification information of a mobile device detected within a set range of the vehicle with pre-stored BLE verification information when determining whether the detected mobile device is authorized;
the AVNT smart interconnect device is further configured to determine that the detected mobile device is an authorized mobile device if the BLE authentication information of the detected mobile device matches the pre-stored BLE authentication information.
5. The BLE-based system for controlling opening of a tailgate of a vehicle according to claim 3, wherein,
the period of time is set to be a fixed time length, and the range of the fixed time length is less than or equal to 1.5 seconds.
6. The BLE-based system for controlling opening of a tailgate of a vehicle according to claim 1, wherein,
the set range of the vehicle is the distance range between the mobile device and the AVNT intelligent interconnection device, and the set range comprises a range within 3 m.
7. The system according to claim 3, wherein the body control device is configured to authenticate with the AVNT intelligent interconnection device upon receiving an authentication request from the AVNT intelligent interconnection device within the period of time;
the vehicle body control device is further configured to determine that BLE verification operation of the mobile device is successful if identity authentication of the AVNT intelligent interconnection device is successful.
8. The BLE-based system for controlling opening of a tailgate of a vehicle according to claim 1, wherein,
and the communication between the central control device and the AVNT intelligent interconnection device as well as the communication between the central control device and the vehicle body control device are executed through a controller local area network.
9. The BLE-based system for controlling opening of a tailgate of a vehicle according to claim 1, wherein,
the identity authentication between the AVNT intelligent interconnection device and the vehicle body control device is realized by learning to share authentication information.
CN202111463998.5A 2021-03-23 2021-12-03 System for controlling opening of tail gate of vehicle based on BLE Pending CN115182661A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2021205876722 2021-03-23
CN202120587672 2021-03-23

Publications (1)

Publication Number Publication Date
CN115182661A true CN115182661A (en) 2022-10-14

Family

ID=83512133

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111463998.5A Pending CN115182661A (en) 2021-03-23 2021-12-03 System for controlling opening of tail gate of vehicle based on BLE

Country Status (1)

Country Link
CN (1) CN115182661A (en)

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