Bluetooth-based anti-theft key with different lock types and system thereof
By combining Bluetooth, anti-theft, and radio frequency modules, the problem of traditional keys being unable to adapt to different lock types is solved, enabling one key to adapt to multiple lock types and improving the user experience.
Patent Information
- Application Number
- CN202420638910.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Traditional anti-theft keys cannot be compatible with different lock types, forcing users to carry multiple keys, increasing their burden and making them inconvenient to use.
The device uses a Bluetooth module, an anti-theft module, and an RF module connected together. The Bluetooth module receives data from the mobile device, the RF module receives data from external devices, and the anti-theft module processes the logic and algorithms to enable a single key to adapt to different lock types and RF frequencies and encoding methods.
It enables a single key to open multiple lock types, reducing the number of keys users need to carry and improving ease of use.
Smart Images

Figure CN223857725U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to smart key technology, specifically, anti-theft keys and systems based on Bluetooth configuration for different lock types. It is particularly suitable for automobiles, electric vehicles, garage doors, electric roller shutters, and smart home radio frequency control systems. Background Technology
[0002] With the rapid development of smart keys, traditional mechanical keys are gradually being replaced by electronic security keys. Electronic security keys interact with smart locks via wireless communication to unlock and perform other functions, improving security and convenience. However, there are certain differences between security keys for different lock types, mainly in terms of radio frequency and encoding methods. Different lock types use different radio frequency frequencies and encoding methods to ensure communication security and uniqueness, which means that traditional keys cannot be adapted to the needs of different lock types. This means that users may need to carry multiple keys, each corresponding to a different lock type, to complete the unlocking and starting operations. This not only increases the burden on users but is also inconvenient for daily use. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an anti-theft key and system based on Bluetooth configuration for different lock types. Using this key and system, one key can open different lock types, which is convenient for users.
[0004] To solve the above problems, the following technical solutions are provided:
[0005] This invention relates to an anti-theft key based on Bluetooth configuration for different lock types, comprising a housing. The housing contains a Bluetooth module, an anti-theft module, and an radio frequency (RF) module, with the serial ports of the Bluetooth module, the anti-theft module, and the RF module interconnected. The Bluetooth module receives and stores data transmitted from an external mobile device or the RF module, and transmits the received data to the anti-theft module and the RF module. The RF module receives data from an external device or the Bluetooth module, and transmits the data from the external device to the Bluetooth module and the anti-theft module. The Bluetooth module and the RF module update their internal parameters based on the data transmitted from the external device or the mobile device. The anti-theft module processes the logic and algorithms related to the anti-theft function and updates its internal parameters based on the information transmitted by the Bluetooth module or the RF module.
[0006] The Bluetooth module includes a memory, a FLASH unit, a first encryption processor, a first modem, a first programming port, an antenna, and a first data processor.
[0007] The anti-theft module includes a second modem, a second encryption processor, a second programming port, a second data processor, and a controller.
[0008] The radio frequency module includes a third encryption processor, a third modem, a third programming port, a third data processor, and a radio frequency transmitter and antenna.
[0009] The anti-theft module is adapted to be connected to an LF receiving antenna.
[0010] An anti-theft key based on Bluetooth configuration for different lock types is described above. The mobile terminal is connected to the Bluetooth module via Bluetooth. The mobile terminal is connected to a server via a network. The mobile terminal is used to download data information stored in the server and transmit the data information to the Bluetooth module via Bluetooth.
[0011] The above approach has the following advantages:
[0012] The Bluetooth module of this invention, which configures anti-theft keys for different lock types based on Bluetooth, receives and stores data transmitted from an external mobile device or radio frequency (RF) module, and then transmits the received data to the anti-theft module and the RF module. The RF module receives data transmitted from an external device or Bluetooth module and transmits the data to the Bluetooth module and the anti-theft module. The Bluetooth module and the RF module update their internal parameters based on the data transmitted from the external device or mobile device. The anti-theft module processes the logic and algorithms related to the anti-theft function and updates its internal parameters based on the information transmitted from the Bluetooth module or the RF module. By receiving and storing data from the mobile device through the Bluetooth module and receiving data from the external device through the RF module and transmitting it to the Bluetooth storage, a single key can store the RF frequencies and encoding methods for different lock types, thus enabling one key to open different lock types and providing convenience for users. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the anti-theft system based on Bluetooth configuration for different lock types according to this utility model;
[0014] Figure 2 This is a circuit diagram of the Bluetooth module in the anti-theft system based on Bluetooth configuration for different lock types according to this utility model;
[0015] Figure 3 This is a circuit diagram of the anti-theft module in the anti-theft system based on Bluetooth configuration of different lock types according to this utility model;
[0016] Figure 4 This is a circuit diagram of the radio frequency module in the Bluetooth-based anti-theft system for different lock types according to this utility model. Detailed Implementation
[0017] The present invention will be further described in detail below with reference to the accompanying drawings.
[0018] like Figure 1As shown, this utility model discloses an anti-theft key based on Bluetooth configuration for different lock types, comprising a housing 1. The housing 1 contains a Bluetooth module, an anti-theft module, and an radio frequency (RF) module. The Bluetooth module controls the overall operation of the key body. The anti-theft module processes the logic and algorithms related to the anti-theft function, ensuring key security, storing key body data, and controlling key output. The RF module supports multiple RF frequencies and encoding methods to adapt to the anti-theft key requirements of different lock types.
[0019] like Figure 1 As shown, the serial ports of the Bluetooth module, the anti-theft module, and the RF module are interconnected. The Bluetooth module receives and stores data transmitted from external mobile devices or the RF module, and then transmits the received data to the anti-theft module and the RF module. The RF module receives data transmitted from external devices or the Bluetooth module, and then transmits the data transmitted from external devices to the Bluetooth module and the anti-theft module. The Bluetooth module and the RF module update their internal parameters based on the data transmitted from external devices or mobile devices. The anti-theft module processes the logic and algorithms related to the anti-theft function and updates its internal parameters based on the information transmitted from the Bluetooth module or the RF module.
[0020] The anti-theft module includes...
[0021] The radio frequency module includes a third encryption processor, a third modem, a third programming port, a third data processor, a radio frequency transmitter, and an antenna.
[0022] like Figure 2 As shown, in this embodiment, the Bluetooth module uses chip U2, model N32WB031KCQ6-2. Chip U2 integrates a memory, a FLASH unit, a first encryption processor, a first modem, a first programming port, an antenna, and a first data processor. Chip U2 is connected to peripheral circuitry for driving its operation, the specific structure of which is as follows. Figure 2 As shown, this is existing technology and will not be elaborated further here.
[0023] like Figure 3 As shown, the anti-theft module uses chip U1, model PCF7926. Chip U1 integrates a second modem, a second encryption processor, a second programming port, a second data processor, and a controller. Chip U2 is connected to peripheral circuitry for driving its operation, the specific structure of which is shown below. Figure 3 As shown, this is existing technology and will not be elaborated further here.
[0024] like Figure 4 As shown, the RF module uses chip U3, model CMT2119A-ESR. Chip U3 is connected to peripheral circuits for driving its operation, and the specific structure is as follows. Figure 4 As shown, this is existing technology and will not be elaborated further here.
[0025] In this embodiment, pin 19 of chip U2 is connected to pin 7 of chip U1 and pin 3 of chip U3, and pin 20 of chip U2 is connected to pin 6 of chip U1 and pin 4 of chip U3 to realize serial communication between the three.
[0026] In this embodiment, the radio frequency module is connected to an LF receiving antenna. The LF receiving antenna includes a single-axis receiving antenna and a multi-axis receiving antenna. The LF receiving antenna receives data of the corresponding frequency and sends it to the MCU for data processing.
[0027] In this embodiment, the FLASH unit is used to store data transmitted transparently by the mobile terminal. The first, second, and third encryption processors are used to encrypt and decrypt communication data to ensure data security. The first, second, and third modems are used to convert digital signals into analog signals and vice versa, enabling communication transmission. The first, second, and third programming ports are used to individually program configuration information into the MCU within the key body. The antenna is used to receive and transmit wireless signals, enabling remote communication with the mobile terminal or vehicle intelligent system. The first, second, and third data processors are used to process the received configuration information and user operation commands, performing corresponding logical processing.
[0028] like Figure 1 The present invention relates to a Bluetooth-based anti-theft key system for configuring different lock types, comprising an anti-theft key for configuring different lock types based on Bluetooth and a mobile terminal. The mobile terminal is connected to a Bluetooth module via Bluetooth and is connected to a server via a network. The mobile terminal is used to download data information stored in the server and transmit this data information to the Bluetooth module via Bluetooth. The mobile terminal is a smartphone or tablet.
[0029] This solution has two data transmission methods, as follows: Method 1: The mobile terminal receives relevant data from the server, sends it to the key via OTA, the key's Bluetooth receives the relevant data, and then the Bluetooth sends parameter configurations or update programs to the anti-theft MCU and the RF MCU via serial port to achieve parameter configuration or program update. The three MCUs can communicate with each other and can flexibly configure parameters according to requirements to ultimately achieve key matching.
[0030] Method 2: Receive relevant data through the LF receiving antenna, process the data for the anti-theft module, configure parameters or update programs for the Bluetooth and RF modules respectively, and finally achieve key matching.
Claims
1. A theftproof key based on Bluetooth configuration of different lock types, comprising a shell; characterized in that, The shell has a Bluetooth module, an anti-theft module and a radio frequency module, and the serial ports of the Bluetooth module, the anti-theft module and the radio frequency module are connected with each other; the Bluetooth module is used for receiving and storing data transmitted by an external mobile terminal or the radio frequency module, and transmitting the received data to the anti-theft module and the radio frequency module; the radio frequency module is used for receiving data transmitted by an external device or the Bluetooth module, and transmitting the data transmitted by the external device to the Bluetooth module and the anti-theft module; the Bluetooth module and the radio frequency module update internal parameters according to data transmitted by the external device or the mobile terminal; the anti-theft module is used for processing logic and algorithms related to the anti-theft function, and updating internal parameters according to information transmitted by the Bluetooth module or the radio frequency module.
2. The anti-theft key based on the Bluetooth configuration different lock types according to claim 1, wherein, The Bluetooth module comprises a memory, a FLASH unit, a first encryption processor, a first modem, a first burning port, an antenna and a first data processor.
3. The anti-theft key based on the Bluetooth configuration different lock types according to claim 1, wherein, The anti-theft module comprises a second modem, a second encryption processor, a second burning port, a second data processor and a controller.
4. The anti-theft key based on the Bluetooth configuration different lock type according to claim 1, wherein, The radio frequency module comprises a third encryption processor, a third modem, a third burning port, a third data processor, a radio frequency transmitter and an antenna.
5. The anti-theft key based on the Bluetooth configuration different lock type according to claim 1, wherein, The anti-theft module is adaptively connected with an LF receiving antenna. 6. An anti-theft key system of different lock types based on Bluetooth configuration, characterized by, The mobile terminal is connected with the Bluetooth module through Bluetooth, and the mobile terminal is connected with a server through a network, and the mobile terminal is used for downloading data information stored in the server and transmitting the data information to the Bluetooth module through Bluetooth.