WO2021027347A1 - 一种汽车蓝牙装置及汽车无钥匙开闭方法 - Google Patents
一种汽车蓝牙装置及汽车无钥匙开闭方法 Download PDFInfo
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- WO2021027347A1 WO2021027347A1 PCT/CN2020/089837 CN2020089837W WO2021027347A1 WO 2021027347 A1 WO2021027347 A1 WO 2021027347A1 CN 2020089837 W CN2020089837 W CN 2020089837W WO 2021027347 A1 WO2021027347 A1 WO 2021027347A1
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/10—Communication protocols, communication systems of vehicle anti-theft devices
- B60R2325/101—Bluetooth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/20—Communication devices for vehicle anti-theft devices
- B60R2325/205—Mobile phones
Definitions
- the invention relates to the field of automobiles, in particular to an automobile Bluetooth device and a method for automobile keyless opening and closing.
- Cars are an indispensable part of people's daily lives. With the rapid improvement of the economic level, the number of family cars has also increased rapidly.
- the opening and closing of the car is mainly realized by the key, which requires manual operation by the user, which is relatively cumbersome. Therefore, the keyless automatic opening and closing of the car has become a large-scale demand.
- the rapid development of smart devices also provides a technical basis for keyless automatic opening and closing of cars, making it possible to keyless open and close cars.
- the present invention provides an automobile Bluetooth device and an automobile keyless opening and closing method to make the opening and closing of the automobile more convenient.
- a car bluetooth device which realizes keyless opening and closing of car doors through the operation of a user bluetooth device held by a user, including a first bluetooth device set in the car central control system and multiple position detections Bluetooth device, the plurality of location detection Bluetooth devices include a second Bluetooth device set near the car central control system, a third Bluetooth device set near the door of the car co-pilot, and the car owner A fourth Bluetooth device near the door of the driving seat, a fifth Bluetooth device arranged in the middle of the rear seat of the car, and a sixth Bluetooth device arranged at the rear of the car;
- the first Bluetooth device is a Bluetooth slave, which sends out a broadcast signal in a broadcast mode, and the user's Bluetooth device acquires the broadcast signal in a scan mode to authenticate the connection with the first Bluetooth device;
- the second bluetooth device, the third bluetooth device, the fourth bluetooth device, the fifth bluetooth device and the sixth bluetooth device are bluetooth hosts, and the connected user's bluetooth The broadcast signal of the device.
- the present invention also provides a keyless opening and closing method for a car, which is realized by the above-mentioned car Bluetooth device, and includes the following steps:
- the first Bluetooth device starts a broadcast mode, and the user Bluetooth device starts a scan mode;
- the first Bluetooth device performs a Bluetooth connection with the user Bluetooth device, and mutually authenticates to obtain first authentication information of the user Bluetooth device for the first Bluetooth device and the first Bluetooth device for the first Bluetooth device.
- the second authentication information of the user's Bluetooth
- the first Bluetooth device sends the first authentication information to the multiple location detection Bluetooth devices;
- the user brings the user Bluetooth device close to the car, and in the process, the user Bluetooth device sends a user broadcast signal through a broadcast mode;
- the multiple location detection Bluetooth devices receive the user broadcast signal of the user Bluetooth device in a scanning mode, and extract the first authentication information therein;
- the multiple location detection Bluetooth devices based on the first authentication information, send the received user broadcast signal and the corresponding broadcast signal strength to the first Bluetooth device;
- the first Bluetooth device generates location information of the user's Bluetooth device according to the multiple received user broadcast signals and corresponding broadcast signal strengths;
- the vehicle central control system selects to open or close the vehicle door according to the position information.
- the first Bluetooth device detects the location of the Bluetooth device through the location and the RSSI received signal strength value of the received user broadcast signal, performs a positioning algorithm, and generates the user The location information of the Bluetooth device relative to the car.
- the first Bluetooth device detects the location of the Bluetooth device and the RSSI received signal strength value of the user broadcast signal through any two of the location, and performs a positioning algorithm to generate the user
- the Bluetooth device generates the final position information from the multiple reference position information of the car relative to the multiple reference position information.
- the position information is the geometric center position of the multiple reference position information.
- step S90 further includes:
- the central control system determines the relative distance between each of the location detection Bluetooth devices and the user's Bluetooth device according to the location information of the user's Bluetooth device;
- the central control system automatically opens the door corresponding to the position detection Bluetooth device.
- step S90 further includes:
- the central control system closes the door corresponding to the position detection Bluetooth device.
- the second preset distance is greater than the first preset distance.
- the keyless opening and closing method of a car further includes:
- the user Bluetooth device sends the second authentication information to a cloud server, and the cloud server stores the second authentication information and establishes an association table between the user Bluetooth device and the first Bluetooth device.
- the location detection Bluetooth device in the car close to the door, such as the main driver's door, the passenger's door or the rear door, etc.
- the user's Bluetooth device and Location detection The Bluetooth connection relationship between Bluetooth devices can determine the location of the user's Bluetooth device, and then determine the user's location, so that the closest door to the user can be opened or closed according to the user's location, using this car keyless opening and closing method .
- the user's Bluetooth device that has been paired within the sensing distance does not need to be manually operated, as long as the user's Bluetooth device is close to or away from the car, the keyless opening and closing action of the car door can be realized.
- Figure 1 is a schematic diagram of the overall structure of the car Bluetooth device of the present invention.
- a car Bluetooth device that realizes the keyless opening and closing of the car door through the operation of the user Bluetooth device held by the user, including the first Bluetooth device set in the car central control system and multiple locations Detect Bluetooth devices.
- Multiple location detection Bluetooth devices include a second Bluetooth device set near the car's central control system, a third Bluetooth device set near the door of the car's passenger seat, and a second Bluetooth device set near the door of the car's main driving position.
- the first Bluetooth device is a Bluetooth slave, which sends out a broadcast signal in a broadcast mode, and the user's Bluetooth device obtains the broadcast signal in a scan mode to authenticate the connection with the first Bluetooth device;
- the second Bluetooth device, the third Bluetooth device, the fourth Bluetooth device, the fifth Bluetooth device, and the sixth Bluetooth device are Bluetooth hosts, and the broadcast signal of the user's Bluetooth device after authentication is scanned through the scanning mode.
- the user's Bluetooth device can directly use the user's smart phone, and the Bluetooth chip in the smart phone can be used as the user's Bluetooth device directly, which can effectively reduce the cost and simplify the operation process by using the user's familiarity with the mobile phone.
- the first Bluetooth device is connected to the central control system of the car, and sends a control instruction to the car according to the signal obtained from the first Bluetooth device.
- the multiple location detection Bluetooth devices include a second Bluetooth device set near the car's central control system, a third Bluetooth device set near the door of the car's passenger seat, and a third Bluetooth device set near the door of the car's main driving seat.
- the second Bluetooth device can be set in parallel with the first Bluetooth device or in the rear view
- the position of the mirror, the third bluetooth device and the fourth bluetooth device can be respectively set on the inner side of the front passenger’s door and the inner side of the main driver’s door or the door handle or B-pillar position, so as to perceive the user’s approach to the passenger’s door or the main driver’s seat
- the location of the car door The fifth Bluetooth device is mainly used to perceive the position of the user close to the rear seat. Therefore, the fifth Bluetooth device can be a Bluetooth device set in the middle of the rear seat.
- a Bluetooth device may be provided on both sides of the door of the rear seat to determine the distance between the user's Bluetooth device and the two doors of the rear seat.
- the sixth Bluetooth device is used to determine the distance between the user's Bluetooth device and the rear of the car, so as to facilitate the control of the switch of the car trunk.
- the device also includes a cloud server, and the cloud server is in communication connection with the user's Bluetooth device.
- a cloud server is set up.
- the cloud server can back up the pairing relationship between each Bluetooth device, mainly the user's Bluetooth device Pairing relationship with the first Bluetooth device.
- the first Bluetooth device is connected with multiple location detection Bluetooth devices, and the multiple location detection Bluetooth devices scan the broadcast signal of the user's Bluetooth device, and obtain the location information of the user's Bluetooth device after the first Bluetooth device is positioned and calculated through the broadcast signal.
- the first Bluetooth device is connected to the central control system, and the location information of the user's Bluetooth device is sent to the central control system, and the corresponding door is automatically opened and closed through the central control system.
- set the location detection Bluetooth device in the car close to the door, such as the main driver's door, the passenger's door or the rear door, etc.
- the Bluetooth connection relationship between Bluetooth devices can determine the location of the user's Bluetooth device, and then determine the user's location, so that the closest door to the user can be opened or closed according to the user's location, achieving the purpose of keyless opening and closing of the car .
- the specific principle of using Bluetooth devices for positioning is that when a Bluetooth device establishes a Bluetooth connection, it can determine the distance between two Bluetooth devices.
- the determination method can be based on the communication conditions, such as channel fading, noise level or communication delay, etc., as A preferred embodiment may be that the first Bluetooth device obtains the radio frequency signal strength value of the user's Bluetooth device through the broadcast signal received by the Bluetooth device by location detection at different locations and the RSSI received signal strength value obtained by the location detection Bluetooth device at different locations.
- Location algorithm to determine the location information of the user's Bluetooth device.
- a Bluetooth device can only determine the range of a circle centered on itself when determining other Bluetooth devices. Therefore, it is difficult to accurately locate other Bluetooth devices. Therefore, the present invention uses multiple Bluetooth devices. The intersection of the determined circle may be the location of another Bluetooth device, so that accurate positioning can be achieved.
- the present invention also provides a keyless opening and closing method for a car, which is implemented by the car Bluetooth device of Embodiment 1, and includes the following steps:
- the first Bluetooth device starts the broadcast mode, and the user Bluetooth device starts the scan mode;
- the first Bluetooth device performs a Bluetooth connection with the user's Bluetooth device, and mutually authenticates to obtain first authentication information of the user's Bluetooth device for the first Bluetooth device and second authentication information of the first Bluetooth device for the user's Bluetooth; specifically, The user's Bluetooth device and the first Bluetooth device are connected to each other by wireless signals, exchange data, and trigger the user's Bluetooth device to send a broadcast signal containing MAC ID and specific identification information to the first Bluetooth device to bind and store the registered account and set it as a manager , And as a location detection Bluetooth device to identify the broadcast signal of the user's Bluetooth device.
- the first Bluetooth device sends the first authentication information to the multiple location detection Bluetooth devices; the multiple location detection Bluetooth devices can transmit data through Bluetooth with the first Bluetooth device; the multiple location detection Bluetooth devices and The first Bluetooth device can also be electrically connected to the vehicle central control system through a data transmission interface for data transmission.
- Bluetooth can also be used for data transmission with the central control system.
- the user brings the user's Bluetooth device close to the car, and the user's Bluetooth device sends out a user broadcast signal through the broadcast mode during the process;
- a plurality of location detection Bluetooth devices receive the user broadcast signal of the user's Bluetooth device through the scanning mode, and extract the first authentication information therein;
- the first Bluetooth device generates location information of the user's Bluetooth device based on the received multiple user broadcast signals and corresponding broadcast signal strengths; in this step S80, the first Bluetooth device detects the location of the Bluetooth device through the location, As well as the RSSI received signal strength value of the user’s broadcast signal received, the positioning algorithm is performed to generate the position information of the user’s Bluetooth device relative to the car; more specifically, multiple reference position information of the user’s Bluetooth device relative to the car is generated. The final position information is generated with reference to the position information.
- the position information referred to in this embodiment is the geometric center position of multiple reference position information.
- step S90 The car central control system selects to open or close the car door according to the position information.
- This step S90 further includes the following steps:
- the central control system determines the relative distance between each location detection Bluetooth device and the user's Bluetooth device according to the location information of the user's Bluetooth device;
- the central control system automatically opens the door corresponding to the position detection Bluetooth device. Specifically, when the user's Bluetooth device is constantly approaching the vehicle, assuming the first preset distance is 1m, each position detection Bluetooth device will continuously receive the broadcast information of the user's Bluetooth device, and generate the user's Bluetooth device by calculating the RSSI received signal strength value Multiple reference location information relative to the car to determine the relative distance between each location detection Bluetooth device and the user's Bluetooth device. If the relative distance between the fourth Bluetooth device and the user's Bluetooth device is within 1m, the central control The system automatically opens the main driving door at the fourth Bluetooth device and automatically unlocks. If the first Bluetooth device calculates that the relative distance between the sixth Bluetooth device and the user's Bluetooth device is within 1m, the tailgate at the sixth Bluetooth device is also The trunk is automatically unlocked.
- Step S90 further includes the following steps:
- the central control system closes the door corresponding to the position detection Bluetooth device.
- the second preset distance is greater than the first preset distance. That is, when the user moves away from the car, the car door can be automatically controlled to close.
- the second preset distance is set to 2m
- the first Bluetooth device calculates When the user’s Bluetooth device is 2m away from the third Bluetooth device, the co-pilot door at the third Bluetooth device is automatically closed. If the user’s Bluetooth device is 2m away from the fifth Bluetooth device, the rear of the fifth Bluetooth device The seat door closes automatically.
- This embodiment uses multiple Bluetooth devices for precise positioning.
- the first Bluetooth device controls the second to sixth Bluetooth devices to turn on, and starts to detect the distance between each Bluetooth device and the user's Bluetooth device and perform positioning calculations Calculate that within the first preset distance, the door of the corresponding position detection Bluetooth device is controlled to unlock, and calculated outside the second preset distance, the door of the corresponding position detection Bluetooth device is controlled to close.
- the first preset distance and the second preset distance in this embodiment are only exemplary embodiments and do not limit the specific values, and can be set according to actual conditions during specific use.
- the distance from the main driving door may be within the first preset distance, and the distance from the tailgate is outside the second preset distance. In this case, if there is a conflict, the priority will be processed For the unlocking action within the first preset distance, when there is no door opening action within the first preset distance, the door closing action outside the second preset distance is processed.
- the method for keyless opening and closing of a car further includes the following steps:
- the user's Bluetooth device sends the second authentication information to a cloud server, and the cloud server stores the second authentication information and establishes an association table between the user's Bluetooth device and the first Bluetooth device.
- a cloud server is set up.
- the cloud server can back up the pairing relationship between each Bluetooth device, mainly the user's Bluetooth device Pairing relationship with the first Bluetooth device.
- the keyless opening and closing action of the car door can be realized.
- the user's Bluetooth device is a smart phone, and the smart phone is installed with an APP to realize the connection and control with the car door lock, and the keyless opening and closing method of the car in this implementation can be used without opening the smart phone APP.
- the automatic opening and closing of the car door can be realized, that is, the first Bluetooth device is connected to multiple location detection Bluetooth devices, and multiple location detection Bluetooth devices scan the broadcast signal of the smartphone.
- the location information of the smart phone is obtained.
- the smart phone is sensed within the preset range, no manual operation is required.
- the door of the car can be controlled.
- the key opening and closing action is simple and convenient.
Abstract
一种汽车蓝牙装置，通过由用户持有的用户蓝牙设备包括设置在汽车中控系统的第一蓝牙设备、和多个位置侦测蓝牙设备，多个位置侦测蓝牙设备包括设置在汽车中控系统附近的第二蓝牙设备、设置在汽车副驾驶位车门附近的第三蓝牙设备、设置在汽车主驾驶位车门附近的第四蓝牙设备、设置在汽车后排座椅中部的第五蓝牙设备、以及设置在汽车尾部的第六蓝牙设备。一种汽车蓝牙装置及汽车无钥匙开闭方法，感知距离内已配对过的用户蓝牙设备，无需手动操作，只要该用户蓝牙设备靠近或者远离该汽车时，即可实现该汽车车门的无钥匙开闭动作，从而简化操作过程，提高便利程度。
Description
本发明涉及汽车领域，具体的说是一种汽车蓝牙装置及汽车无钥匙开闭方法。
汽车是人们日常生活中必不可少的一部分，随着经济水平的快速提高，家庭汽车保有量也快速提升。现有技术中，汽车的开闭主要还是通过钥匙实现，需要用户手动操作，较为繁琐，因此无钥匙自动开闭汽车成了规模较大的需求。另一方面，智能设备的快速发展也为无钥匙自动开闭汽车提供了技术基础，使无钥匙开闭汽车成为了可能。
【发明内容】
为了解决现有技术中的不足，本发明提供一种汽车蓝牙装置及汽车无钥匙开闭方法，使汽车的开闭更为便捷。
为了实现上述目的，本发明采用的具体方案为：
提供一种汽车蓝牙装置，通过由用户持有的用户蓝牙设备的操作，而实现汽车车门的无钥匙开闭，包括设置在所述汽车中控系统的第一蓝牙设备、和多个位置侦测蓝牙设备，所述多个位置侦测蓝牙设备包括设置在所述汽车中控系统附近的第二蓝牙设备、设置在所述汽车副驾驶位车门附近的第三蓝牙设备、设置在所述汽车主驾驶位车门附近的第四蓝牙设备、设置在所述汽车后排座椅中部的第五蓝牙设备、以及设置在所述汽车尾部的 第六蓝牙设备；
第一蓝牙设备是蓝牙从机，通过广播模式发出广播信号，所述用户蓝牙设备通过扫描模式获取所述广播信号而与所述第一蓝牙设备认证连接；
所述第二蓝牙设备、所述第三蓝牙设备、所述第四蓝牙设备、所述第五蓝牙设备和所述第六蓝牙设备是蓝牙主机，通过扫描模式扫描认证连接后的所述用户蓝牙设备的广播信号。
本发明还提供一种汽车无钥匙开闭方法，通过上述的汽车蓝牙装置而实现，包括如下步骤：
S10、将所述汽车蓝牙装置初始化；
S20、所述第一蓝牙设备启动广播模式，所述用户蓝牙设备启动扫描模式；
S30、所述第一蓝牙设备与所述用户蓝牙设备进行蓝牙连接，并且相互认证，得到所述用户蓝牙设备对于所述第一蓝牙设备的第一认证信息和所述第一蓝牙设备对于所述用户蓝牙的第二认证信息；
S40、所述第一蓝牙设备将所述第一认证信息发送给所述多个位置侦测蓝牙设备；
S50、用户携带所述用户蓝牙设备接近所述汽车，过程中所述用户蓝牙设备通过广播模式发出用户广播信号；
S60、所述多个位置侦测蓝牙设备，通过扫描模式接收所述用户蓝牙设备的用户广播信号，并提取其中的所述第一认证信息；
S70、所述多个位置侦测蓝牙设备，基于所述第一认证信息，将接收到的所述用户广播信号及相应的广播信号强度，发送给所述第一蓝牙设 备；
S80、所述第一蓝牙设备根据接收到的多个所述用户广播信号及相应的所述广播信号强度，生成所述用户蓝牙设备的位置信息；
S90、所述汽车中控系统根据所述位置信息选择开启或者关闭所述汽车车门。
作为优选的，步骤S80中，所述第一蓝牙设备通过所述位置侦测蓝牙设备的所在位置、以及接收到的所述用户广播信号的RSSI接收信号强度值，进行定位算法，生成所述用户蓝牙设备相对于所述汽车的位置信息。
作为优选的，步骤S80中，所述第一蓝牙设备通过任两个所述位置侦测蓝牙设备的所在位置、以及所述用户广播信号的RSSI接收信号强度值，进行定位算法，生成所述用户蓝牙设备相对于所述汽车的多个参考位置信息，再从所述多个参考位置信息生成最后的位置信息。
作为优选的，所述位置信息是所述多个参考位置信息的几何中心位置。
作为优选的，步骤S90中更包含：
S91、所述中控系统根据所述用户蓝牙设备的位置信息，确定各所述位置侦测蓝牙设备与所述用户蓝牙设备的相对距离；
S92、若有至少一个所述相对距离在第一预设距离之内，所述中控系统即自动开启该所述位置侦测蓝牙设备对应的车门。
作为优选的，步骤S90中更包含：
S93、若有任何一个所述相对距离在第二预设距离之外，所述中控系统即关闭该所述位置侦测蓝牙设备对应的车门。
作为优选的，所述第二预设距离大于第一预设距离。
作为优选的，汽车无钥匙开闭方法更包含：
S31、所述用户蓝牙设备将所述第二认证信息发送给一个云端服务器，所述云端服务器存储所述第二认证信息并且建立所述用户蓝牙设备与所述第一蓝牙设备的关联表。
在使用时，将位置侦测蓝牙设备设置在汽车内靠近车门的位置，例如主驾驶位车门、副驾驶位车门或者后排车门等，当用户携带用户蓝牙设备靠近汽车时，凭借用户蓝牙设备与位置侦测蓝牙设备之间的蓝牙连接关系，可以确定用户蓝牙设备的位置，进而确定用户的位置，从而可以根据用户的位置开启或者关闭距离用户最近的一个车门，利用此汽车无钥匙开闭方法，感知距离内已配对过的用户蓝牙设备,无需手动操作，只要该用户蓝牙设备靠近或者远离该汽车时,即可实现该汽车车门的无钥匙开闭动作。
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明汽车蓝牙装置的整体结构示意图。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例， 而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
请参阅图1，一种汽车蓝牙装置，通过由用户持有的用户蓝牙设备的操作，而实现汽车车门的无钥匙开闭，包括设置在汽车中控系统的第一蓝牙设备、和多个位置侦测蓝牙设备，多个位置侦测蓝牙设备包括设置在汽车中控系统附近的第二蓝牙设备、设置在汽车副驾驶位车门附近的第三蓝牙设备、设置在汽车主驾驶位车门附近的第四蓝牙设备、设置在汽车后排座椅中部的第五蓝牙设备、以及设置在汽车尾部的第六蓝牙设备；
第一蓝牙设备是蓝牙从机，通过广播模式发出广播信号，用户蓝牙设备通过扫描模式获取广播信号而与第一蓝牙设备认证连接；
第二蓝牙设备、第三蓝牙设备、第四蓝牙设备、第五蓝牙设备和第六蓝牙设备是蓝牙主机，通过扫描模式扫描认证连接后的用户蓝牙设备的广播信号。
用户蓝牙设备可以直接采用用户的智能手机，利用智能手机中的蓝牙芯片直接作为用户蓝牙设备，可以有效降低成本，并且利用用户对手机的熟悉程度简化操作流程。进一步的，第一蓝牙设备与汽车的中控系统连接，根据获取第一蓝牙设备的信号对汽车发出控制指令。
相应的，进一步的，多个位置侦测蓝牙设备包括设置在汽车中控系统附近的第二蓝牙设备、设置在汽车副驾驶位车门附近的第三蓝牙设备、设置在汽车主驾驶位车门附近的第四蓝牙设备、设置在汽车后排座椅中部的 第五蓝牙设备、以及设置在汽车尾部的第六蓝牙设备，第二蓝牙设备可以是与第一蓝牙设备并列设置，也可以设置在后视镜的位置，第三蓝牙设备和第四蓝牙设备可以分别设置在副驾驶位的车门内侧与主驾驶位的车门内侧或者车门把手或B柱位置，从而感知用户靠近副驾驶位车门或者主驾驶位车门的位置。第五蓝牙设备主要用于感知用户靠近后排座位的位置，因此第五蓝牙设备可以是设置在后排座位中间的一个蓝牙设备，在实际使用的过程中，因为用户在后排座位之间是可以灵活切换的，即用户在汽车内部可以随意调整所使用的座位，因此后排座位中也可以只设置一个第五蓝牙设备，而主驾驶位和副驾驶位之间是难以随意更换的，因此分别设置了第三蓝牙设备和第四蓝牙设备。但在其他实施例中为方便对于后座两车门距离的准确判定，也可以是后座两侧车门均设置一个蓝牙设备以供判断用户蓝牙设备距离后座两车门的距离。第六蓝牙设备用以判断用户蓝牙设备距离汽车尾部的距离，方便控制对汽车后备箱的开关。
进一步的，装置还包括云端服务器，云端服务器与用户蓝牙设备通信连接。考虑到蓝牙设备本地的安全性能有限，为了避免出现窃听通信并且伪装成用户蓝牙设备产生汽车丢失的风险，因此设置云端服务器，云端服务器可以备份各个蓝牙设备之间的配对关系，主要是用户蓝牙设备与第一蓝牙设备之间的配对关系。
通过第一蓝牙设备与多个位置侦测蓝牙设备连接，多个位置侦测蓝牙设备扫描用户蓝牙设备的广播信号,通过广播信号经第一蓝牙设备定位计算后获取用户蓝牙设备的位置信息。通过第一蓝牙设备与中控系统连接，将用户蓝牙设备的位置信息发送到中控系统，通过中控系统控制相应的车 门自动开闭。在使用时，将位置侦测蓝牙设备设置在汽车内靠近车门的位置，例如主驾驶位车门、副驾驶位车门或者后排车门等，当用户携带用户蓝牙设备靠近汽车时，凭借用户蓝牙设备与位置侦测蓝牙设备之间的蓝牙连接关系，可以确定用户蓝牙设备的位置，进而确定用户的位置，从而可以根据用户的位置开启或者关闭距离用户最近的一个车门，实现无钥匙开闭汽车的目的。采用蓝牙设备来进行定位的具体原理是，蓝牙设备在建立蓝牙连接时，可以确定两个蓝牙设备之间的距离，确定方式可以根据通信情况，例如信道衰落、噪声水平或者通信延迟等等，作为优选的实施例可以是第一蓝牙设备通过不同位置处的位置侦测蓝牙设备接收到的广播信号获取用户蓝牙设备射频信号强度值以及位置侦测蓝牙设备在不同位置取得的RSSI接收信号强度值进行定位算法,从而判定用户蓝牙设备的位置信息。但是一个蓝牙设备在确定别的蓝牙设备时只能确定以自身为圆心的一个圆的范围，因此难以准确对别的蓝牙设备进行定位，因此本发明采用了多个蓝牙设备，两个蓝牙设备所确定的圆的交叉点即可能是别的蓝牙设备的位置，从而能够实现准确定位。
实施例2
本发明还提供一种汽车无钥匙开闭方法，通过实施例1的汽车蓝牙装置而实现，包括如下步骤：
S10、将汽车蓝牙装置初始化；
S20、第一蓝牙设备启动广播模式，用户蓝牙设备启动扫描模式；
S30、第一蓝牙设备与用户蓝牙设备进行蓝牙连接，并且相互认证， 得到用户蓝牙设备对于第一蓝牙设备的第一认证信息和第一蓝牙设备对于用户蓝牙的第二认证信息；具体的说，用户蓝牙设备与第一蓝牙设备以无线信号互相连接，交互数据，触发用户蓝牙设备发出内含MAC ID及特定辨识信息的广播信号给第一蓝牙设备绑定及储存注册账号及设定为管理者，及作为位置侦测蓝牙设备辨识用户蓝牙设备的广播信号。
S40、第一蓝牙设备将第一认证信息发送给多个位置侦测蓝牙设备；多个位置侦测蓝牙设备与第一蓝牙设备之间可以通过蓝牙进行数据传输；多个位置侦测蓝牙设备与第一蓝牙设备还可以数据传输接口电性连接到汽车中控系统，进行数据传输，当然与中控系统之间也可以采用蓝牙进行数据传输。
S50、用户携带用户蓝牙设备接近汽车，过程中用户蓝牙设备通过广播模式发出用户广播信号；
S60、多个位置侦测蓝牙设备，通过扫描模式接收用户蓝牙设备的用户广播信号，并提取其中的第一认证信息；
S70、多个位置侦测蓝牙设备，基于第一认证信息，将接收到的用户广播信号及相应的广播信号强度，发送给第一蓝牙设备；
S80、第一蓝牙设备根据接收到的多个用户广播信号及相应的广播信号强度，生成用户蓝牙设备的位置信息；在此步骤S80中，第一蓝牙设备通过位置侦测蓝牙设备的所在位置、以及接收到的用户广播信号的RSSI接收信号强度值，进行定位算法，生成用户蓝牙设备相对于汽车的位置信息；更具体的生成用户蓝牙设备相对于汽车的多个参考位置信息，再从多个参考位置信息生成最后的位置信息。本实施例中所指的位置信息是多个 参考位置信息的几何中心位置。
S90、汽车中控系统根据位置信息选择开启或者关闭汽车车门。在此步骤S90中更包含以下步骤：
S91、中控系统根据用户蓝牙设备的位置信息，确定各位置侦测蓝牙设备与用户蓝牙设备的相对距离；
S92、若有至少一个相对距离在第一预设距离之内，中控系统即自动开启该位置侦测蓝牙设备对应的车门。具体的说，当用户蓝牙设备不断靠近车辆，假设第一预设距离为1m，各位置侦测蓝牙设备会不断接收用户蓝牙设备的广播信息，通过对RSSI接收信号强度值计算，生成用户蓝牙设备相对于汽车的多个参考位置信息，从而确定各位置侦测蓝牙设备与用户蓝牙设备的相对距离，若侦测到第四蓝牙设备与用户蓝牙设备的相对距离在1m范围之内，则中控系统即自动开启第四蓝牙设备处的主驾驶车门自动开锁，若第一蓝牙设备计算第六蓝牙设备与用户蓝牙设备的相对距离在1m范围之内，则第六蓝牙设备处的尾门也即后备箱自动开锁。
在步骤S90中更包含以下步骤：
S93、若有任何一个相对距离在第二预设距离之外，中控系统即关闭该位置侦测蓝牙设备对应的车门。在本实施例中，第二预设距离大于第一预设距离。也即可以在用户远离汽车运动时，能够自动控制汽车车门关闭，假设当第二预设距离设置为2m时，当用户蓝牙设备距离位置侦测蓝牙设备越来越远，当第一蓝牙设备计算用户蓝牙设备距离第三蓝牙设备在2m距离之外时，第三蓝牙设备处的副驾驶车门自动关闭，若用户蓝牙设备距离第五蓝牙设备在2m距离之外时，第五蓝牙设备处的后座车门自动关闭。 本实施例利用多个蓝牙设备进行精准定位，理论上来说至少需要三颗蓝牙设备蓝牙设备才能实现定位，在本实施例中用了五颗蓝牙设备进行定位，也即第二～第六蓝牙设备都是由于定位，当用户蓝牙设备和第一蓝牙设备握手连接后，第一蓝牙设备控制第二～第六蓝牙设备开启，开始侦测各个蓝牙设备与用户蓝牙设备之间的距离并进行定位计算，计算在第一预设距离之内即控制相应位置侦测蓝牙设备处的车门开锁，计算在第二预设距离之外即控制相应位置侦测蓝牙设备处的车门关闭。本实施例中的第一预设距离和第二预设距离仅为优选实施例说明，并不限制具体数值，在具体使用时可以根据实际进行设定。
在另外的实施例中，当用户位于某些位置处，可能距离主驾驶车门距离在第一预设距离之内，距离尾门在第二预设距离之外，此时存在冲突，则优先处理第一预设距离之内的开锁动作，当不存在第一预设距离之内的开门动作时，才处理第二预设距离之外的关门动作。
在另外的实施例中，汽车无钥匙开闭方法还包含以下步骤：
S31、用户蓝牙设备将第二认证信息发送给一个云端服务器，云端服务器存储第二认证信息并且建立用户蓝牙设备与第一蓝牙设备的关联表。考虑到蓝牙设备本地的安全性能有限，为了避免出现窃听通信并且伪装成用户蓝牙设备产生汽车丢失的风险，因此设置云端服务器，云端服务器可以备份各个蓝牙设备之间的配对关系，主要是用户蓝牙设备与第一蓝牙设备之间的配对关系。
利用此汽车无钥匙开闭方法，通过感知距离内已配对过的用户蓝牙设备,无需手动操作，只要该用户蓝牙设备靠近或者远离该汽车时,即可实现 该汽车车门的无钥匙开闭动作。在本实施例中，用户蓝牙设备为智能手机，智能手机安装有APP以实现与汽车门锁的连接与控制，而利用本实施中的汽车无钥匙开闭方法，可以在不需要打开智能手机APP的情况下，即可实现汽车车门的自动开闭，即通过第一蓝牙设备与多个位置侦测蓝牙设备连接，多个位置侦测蓝牙设备扫描智能手机的广播信号,通过广播信号经第一蓝牙设备定位计算后获取智能手机的位置信息,当感知智能手机在预设范围内,无需手动操作，只要该智能手机靠近或者远离该汽车预设范围内时,即可实现对该汽车车门的无钥匙开闭动作，简单便捷。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。
Claims (9)
- 一种汽车蓝牙装置，通过由用户持有的用户蓝牙设备的操作，而实现汽车车门的无钥匙开闭，其特征在于：包括设置在所述汽车中控系统的第一蓝牙设备、和多个位置侦测蓝牙设备，所述多个位置侦测蓝牙设备包括设置在所述汽车中控系统附近的第二蓝牙设备、设置在所述汽车副驾驶位车门附近的第三蓝牙设备、设置在所述汽车主驾驶位车门附近的第四蓝牙设备、设置在所述汽车后排座椅中部的第五蓝牙设备、以及设置在所述汽车尾部的第六蓝牙设备；所述第一蓝牙设备是蓝牙从机，通过广播模式发出广播信号，所述用户蓝牙设备通过扫描模式获取所述广播信号而与所述第一蓝牙设备认证连接；所述第二蓝牙设备、所述第三蓝牙设备、所述第四蓝牙设备、所述第五蓝牙设备和所述第六蓝牙设备是蓝牙主机，通过扫描模式扫描认证连接后的所述用户蓝牙设备的广播信号。
- 一种汽车无钥匙开闭方法，通过权利要求1所述的汽车蓝牙装置而实现，其特征在于：包括如下步骤：S10、将所述汽车蓝牙装置初始化；S20、所述第一蓝牙设备启动广播模式，所述用户蓝牙设备启动扫描模式；S30、所述第一蓝牙设备与所述用户蓝牙设备进行蓝牙连接，并且相互认证，得到所述用户蓝牙设备对于所述第一蓝牙设备的第一认证信息和所述第一蓝牙设备对于所述用户蓝牙的第二认证信息；S40、所述第一蓝牙设备将所述第一认证信息发送给所述多个位置侦测蓝牙设备；S50、用户携带所述用户蓝牙设备接近所述汽车，过程中所述用户蓝牙设备通过广播模式发出用户广播信号；S60、所述多个位置侦测蓝牙设备，通过扫描模式接收所述用户蓝牙设备的用户广播信号，并提取其中的所述第一认证信息；S70、所述多个位置侦测蓝牙设备，基于所述第一认证信息，将接收到的所述用户广播信号及相应的广播信号强度，发送给所述第一蓝牙设备；S80、所述第一蓝牙设备根据接收到的多个所述用户广播信号及相应的所述广播信号强度，生成所述用户蓝牙设备的位置信息；S90、所述汽车中控系统根据所述位置信息选择开启或者关闭所述汽车车门。
- 根据权利要求2所述的汽车无钥匙开闭方法，其特征在于：步骤S80中，所述第一蓝牙设备通过所述位置侦测蓝牙设备的所在位置、以及接收到的所述用户广播信号的RSSI接收信号强度值，进行定位算法，生成所述用户蓝牙设备相对于所述汽车的位置信息。
- 根据权利要求3所述的汽车无钥匙开闭方法，其特征在于：步骤S80中，所述第一蓝牙设备通过任两个所述位置侦测蓝牙设备的所在位置、以及所述用户广播信号的RSSI接收信号强度值，进行定位算法，生成所述用户蓝牙设备相对于所述汽车的多个参考位置信息，再从所述多个参考位置信息生成最后的位置信息。
- 根据权利要求4所述的汽车无钥匙开闭方法，其特征在于：所述位置信息是所述多个参考位置信息的几何中心位置。
- 根据权利要求3～5其中任一项所述的汽车无钥匙开闭方法，其特征在于：步骤S90中更包含：S91、所述中控系统根据所述用户蓝牙设备的位置信息，确定各所述位置侦测蓝牙设备与所述用户蓝牙设备的相对距离；S92、若有至少一个所述相对距离在第一预设距离之内，所述中控系统即自动开启该所述位置侦测蓝牙设备对应的车门。
- 根据权利要求6所述的汽车无钥匙开闭方法，其特征在于：步骤S90中更包含：S93、若有任何一个所述相对距离在第二预设距离之外，所述中控系统即关闭该所述位置侦测蓝牙设备对应的车门。
- 根据权利要求7所述的汽车无钥匙开闭方法，其特征在于：所述第二预设距离大于第一预设距离。
- 根据权利要求2所述的汽车无钥匙开闭方法，其特征在于更包含：S31、所述用户蓝牙设备将所述第二认证信息发送给一个云端服务器，所述云端服务器存储所述第二认证信息并且建立所述用户蓝牙设备与所述第一蓝牙设备的关联表。
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| CN110606046B (zh) * | 2019-08-09 | 2021-08-03 | 深圳市昇润科技有限公司 | 一种汽车蓝牙装置及汽车无钥匙开闭方法 |
| CN111127720A (zh) * | 2019-12-26 | 2020-05-08 | 重庆集诚汽车电子有限责任公司 | 一种基于蓝牙信号接收强度的蓝牙数字钥匙装置 |
| CN113920615B (zh) * | 2020-06-24 | 2023-02-03 | 广州汽车集团股份有限公司 | 蓝牙钥匙与车辆连接的方法、车辆蓝牙系统、蓝牙钥匙 |
| CN111970646B (zh) * | 2020-07-08 | 2022-04-26 | 深圳市昇润科技有限公司 | 一种基于信标广播的智能蓝牙操作开关方法及系统 |
| CN111741167B (zh) * | 2020-07-16 | 2021-07-06 | 重庆长安汽车股份有限公司 | 基于手机控制车辆的系统及方法 |
| CN111890871A (zh) * | 2020-07-21 | 2020-11-06 | 宁波奥克斯电气股份有限公司 | 一种用于汽车控制的蓝牙耳机、汽车控制系统及控制方法 |
| CN111976649A (zh) * | 2020-08-28 | 2020-11-24 | 广州小鹏汽车科技有限公司 | 一种控制方法和装置 |
| CN115263124B (zh) * | 2022-07-04 | 2023-11-03 | 肇庆小鹏新能源投资有限公司 | 车门控制方法、系统、车辆及存储介质 |
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