Vehicle authentication system for authenticating portable authentication device and related method
Patent Information
- Application Number
- CN202380037257.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-27
- Filing Date
- 2023-08-30
- Publication Date
- 2024-12-10
AI Technical Summary
When connecting portable certification devices, existing vehicle certification systems require two BLE modules to increase costs and cannot connect devices that serve as scanning roles and devices that serve as advertising roles at the same time.
A single BLE module is designed, with at least one BLE antenna and a control unit, capable of alternately operating under scanning roles and advertising roles, establishing a connection with a plurality of portable authentication devices over different time periods through the control unit.
It enables the vehicle to connect simultaneously the portable authentication device in the scanning role and the portable authentication device in the advertising role without increasing costs, improving the flexibility and functionality of the system.
Smart Images
Figure CN119111084A_ABST
Abstract
Description
[0001] manual:
[0002] The invention relates to an authentication system for a vehicle for authenticating a plurality of portable authentication devices of the vehicle in order to enable vehicle functions, in particular for an operator carrying one or more portable authentication devices. The invention also relates to a method of operating the authentication system.
[0003] When two components or modules are connected using Bluetooth Low Energy (BLE), one of the modules is required to act as an advertiser or take an advertising role, and the other module is required to act as a scanner or take a scanning role.
[0004] For an authentication system of a vehicle, it is generally provided that the vehicle has a BLE module operating in an advertising role to connect to a portable authentication device having a BLE module operating in a scanning role.
[0005] If the vehicle also wishes to be able to connect to a portable authentication device that assumes the advertising role, the prior art has so far mostly provided that the vehicle comprises two BLE modules, one of which assumes the advertising role and the other of which assumes the scanning role.
[0006] However, this results in increased costs due to the additional modules.
[0007] Therefore, the object of the present invention is to overcome the above-mentioned disadvantages and to provide an authentication system which can be connected to both a portable authentication device in a scanning role and a portable authentication device in an advertising role.
[0008] This object is achieved by the combination of features according to claim 1 .
[0009] According to the invention, an authentication system for a vehicle is provided for authenticating a plurality of portable authentication devices of the vehicle, in particular in order to enable vehicle functions for an operator, in particular carrying at least one of the portable authentication devices. The portable authentication device is preferably an ID transmitter. To this end, the identity authentication system has at least one and preferably exactly one BLE module, which may also be referred to as a BLE anchor. The BLE module has at least one BLE antenna and a control unit for controlling the BLE antenna or for operating the BLE antenna. The control unit is designed to operate the BLE module alternately in a first operating mode and in a second operating mode. In addition, the control unit is designed to operate the BLE module in a first operating mode to establish a connection with at least one (first) portable authentication device operating in an advertising role in a scanning role, and to operate the BLE module in a second operating mode to establish a connection with at least one (second) portable authentication device operating in a scanning role in an advertising role.
[0010] As part of the BLE module, the control unit may be an ECU. Alternatively, the entire BLE module may also be an ECU with an integrated BLE antenna.
[0011] Preferably, the BLE module has exactly one BLE antenna, which can be operated alternately in an advertising role and in a scanning role depending on the respective operating mode.
[0012] An advantageous development provides that the control unit is designed to operate the BLE module in the first operating mode for a first predetermined period of time and to operate the BLE module in the second operating mode for a second predetermined period of time.
[0013] The first time period may be the same as the second time period.
[0014] However, alternatively, the first time period and the second time period may be different from each other and may be adjusted, for example, according to a plurality of portable authentication devices connected to the authentication system in the respective operating mode. In this variant, it is preferably provided that the first time period corresponds to, and preferably relates to, a plurality of portable authentication devices connected or communicating with the BLE module in the first operating mode. Additionally or alternatively, the second time period may correspond to, and preferably relates to, a plurality of portable authentication devices connected or communicating with the BLE module in the second operating mode.
[0015] In this case, for example, even if no portable authentication device is connected or communicating, the first time period and / or the second time period may correspond to a minimum value to which a predetermined value is added for each connected portable authentication device.
[0016] If the portable authentication device is part of an authentication system, it can be provided that the plurality of portable authentication devices comprises a first subset and a second subset, wherein the first subset comprises portable authentication devices operating in an advertising role and the second subset comprises portable authentication devices operating in a scanning role, or consists of them.
[0017] Another aspect of the invention relates to a method of operating an authentication system according to the invention. According to the method, the BLE module operates alternately in a first operating mode and a second operating mode.
[0018] In the method, it is preferably provided that in a first operating mode, the BLE module operates in a scanning role, in which advertising events are received to establish a connection, and / or in a second operating mode, the BLE module operates in an advertising role, in which advertising events are sent to establish a connection.
[0019] Furthermore, in the first operating mode, a first number of portable authentication devices connected to the BLE module may be detected, and a first time period may be determined therefrom, wherein the BLE module operates in the first operating mode for the first time period. Additionally or alternatively, in the second operating mode, a second number of portable authentication devices connected to the BLE module may be detected in a similar manner, and a second time period may be determined therefrom, wherein the BLE module operates in the second operating mode for the second time period.
[0020] The features disclosed above may be combined in any way as long as such combination is technically feasible and the features do not contradict each other.
[0021] Further advantageous developments of the invention are characterized in the dependent claims and will be described in more detail below in conjunction with the description of preferred embodiments of the invention with reference to the accompanying drawings. In the drawings:
[0022] Figure 1 A schematically illustrated authentication system is shown;
[0023] Figure 2 Transitions between operating modes are shown.
[0024] These figures show schematic examples. The same reference numerals in the figures denote the same functions and / or structural features.
[0025] Figure 1 An example of an authentication system 1 of a vehicle 3 is shown, which is connected to or can establish a connection with two portable authentication devices 21, 22 designed as portable ID transmitters. The first ID transmitter 21 operates in an advertising role and the second ID transmitter 22 operates in a scanning role.
[0026] In order to be able to connect to two ID transmitters 21 , 22 on the vehicle side, exactly one BLE module 4 is provided instead of two separate BLE modules, one of which has at least one or exactly one BLE antenna 5 and a control unit 6 for controlling the BLE antenna 5 .
[0027] In order to be able to communicate or connect with both the first ID transmitter 21 and the second ID transmitter 22 using a single BLE module, it is specified that the BLE module 4 (such as Figure 2 As shown in FIG. 1 , the BLE IC ( FIG. 10 ) alternately operates in a first operation mode A for a first time period t1 and in a second operation mode B for a second time period t2. Alternatively, the operation mode may also be implemented by a BLE IC having two receiving / transmitting channels.
[0028] The BLE module 4 operates in a first operation mode A to establish a connection in a scanning role with the first ID transmitter 21 operating in an advertising role, and operates in a second operation mode B to establish a connection in a scanning role with the second ID transmitter 22 operating in a scanning role.
Claims
1. An authentication system (1) for a vehicle (3), for authenticating a plurality of portable authentication devices (21, 22) of the vehicle (3), The system comprises at least one BLE module (4), the at least one BLE module having at least one BLE antenna (5) and a control unit (6) for controlling the BLE antenna (5), The control unit (6) is designed to operate the BLE module (4) alternately in a first operation mode (A) and a second operation mode (B), wherein the control unit (6) is designed to operate the BLE module (4) in the first operating mode (A) to establish a connection in a scanning role with at least one portable authentication device (21) operating in an advertising role, And wherein the control unit (6) is designed to operate the BLE module (4) in the second operating mode (B) to establish a connection in an advertising role with at least one portable authentication device (22) operating in a scanning role.
2. The authentication system according to claim 1, The BLE module (4) has at least one or in particular exactly one BLE antenna (5) which can be operated alternately in the advertising role and in the scanning role.
3. The authentication system according to claim 1 or 2, The control unit (6) is designed to operate the BLE module (4) in the first operation mode (A) for a first predetermined time period (t1), and to operate the BLE module in the second operation mode (B) for a second predetermined time period (t2).
4. Authentication system according to the preceding claim, The first time period (t1) is equal to the second time period (t2).
5. The authentication system according to claim 3, wherein the first time period (t1) corresponds to a plurality of portable authentication devices (21) connected to the BLE module (4) in the first operation mode (A), And / or wherein the second time period (t2) corresponds to a plurality of portable authentication devices (22) connected to the BLE module (4) in the second operating mode (B).
6. An authentication system according to any one of the preceding claims, wherein the plurality of portable authentication devices comprises a first subset and a second subset, Wherein the first subset includes portable authentication devices (21) operating in the advertising role, and the second subset includes portable authentication devices (22) operating in the scanning role.
7. A method for operating an authentication system according to any one of the preceding claims, The BLE module (4) operates alternately in the first operation mode (A) and the second operation mode (B).
8. The method according to the preceding claim, wherein the BLE module (4) operates in a scanning role in the first operation mode (A), receiving advertising events in the scanning role to establish the connection, And / or the BLE module (4) operates in an advertising role in the second operation mode (B), in which it sends an advertising event to establish a connection.
9. The method according to any one of the two preceding claims, wherein a first number of portable authentication devices (21) connected to the BLE module (4) is detected in the first operating mode (A) and a first time period (t1) is determined therefrom, wherein the BLE module (4) operates in the first operating mode (A) for the first time period (t1), And / or wherein a second number of portable authentication devices (22) connected to the BLE module (4) is detected in the second operating mode (B) and a second time period (t2) is determined thereby, wherein the BLE module (4) operates in the second operating mode (B) for the second time period (t2).