Signal transmission chip circuit board for interaction of low-frequency signal and high-frequency signal

Abstract

The utility model discloses a signal transmission chip circuit board for interaction of low-frequency signals and high-frequency signals, which belongs to the technical field of circuit boards and comprises a circuit board body provided with a plurality of power supply units, a radio frequency transceiving unit, an antenna matching unit and an information processing unit. The plurality of power supply units, the radio frequency transceiving unit and the antenna matching unit are electrically connected with the information processing unit, and the information processing unit is connected with a CAN low-frequency communication unit and a CAN high-frequency communication unit; according to the utility model, low-power-consumption power supply is carried out through the power supply unit, basic intelligent card key function implementation is carried out through the radio frequency transmit-receive unit and the antenna matching unit, and interaction of low-frequency signals and high-frequency signals of the CAN low-frequency communication unit and the CAN high-frequency communication unit is carried out in the information processing unit, so that the use requirements of users are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to circuit board technical field especially relates to a signal transmission chip circuit board of low frequency signal and high frequency signal interaction. BACKGROUND

[0002] Car door key is needed for locking and unlocking of car door, however, it is troublesome to carry car key, especially the car door key with remote control function has increased in size, and it is not very convenient to carry. However, mobile phone is a communication tool that people must carry every day, with the progress and development of technology, the function of mobile phone is increasing, especially the mobile phone with near field communication (NFC) technology can be used as payment card or access control card, which is very convenient. Near field communication (NFC) can identify and exchange data with compatible devices in short distance through electromagnetic induction coupling mode in the frequency spectrum, compared with traditional near field communication, near field communication (NFC) has natural security and rapidity of connection establishment.

[0003] At present, the low frequency transmission of smart card key cannot meet the use requirement of users. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of signal transmission chip circuit boards of low frequency signal and high frequency signal interaction, to solve the above-mentioned problems.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of signal transmission chip circuit board of low frequency signal and high frequency signal interaction, it includes circuit board body, multiple power supply units, radio frequency transceiver unit, antenna matching unit and information processing unit are arranged on the circuit board body, multiple the power supply unit, the radio frequency transceiver unit and the antenna matching unit are all electrically connected with the information processing unit, the information processing unit connects CAN low frequency communication unit and CAN high frequency communication unit.

[0006] As a further description of the above technical solution:

[0007] The CAN low frequency communication unit is BLE low-power Bluetooth BLE communication.

[0008] As a further description of the above technical solution:

[0009] The CAN low frequency communication unit is low frequency 135kHz communication.

[0010] As a further description of the above technical solution:

[0011] The information processing unit is communicated through OBD interface protocol.

[0012] As a further description of the above technical solutions:

[0013] The overall power consumption of the circuit board body is ≤500mW.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0015] In the present application, low-power supply is realized by the power supply unit, and the basic smart card key function is implemented by the radio frequency transceiver unit and the antenna matching unit. The low-frequency signal and the high-frequency signal of the CAN low-frequency communication unit and the CAN high-frequency communication unit are interacted in the information processing unit, thereby meeting the use requirements of users. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a front view of the signal transmission chip circuit board for low-frequency signal and high-frequency signal interaction.

[0017] Fig. 2 It is a back view of the signal transmission chip circuit board for low-frequency signal and high-frequency signal interaction.

[0018] Fig. 3 It is a circuit diagram of the information processing unit of the signal transmission chip circuit board for low-frequency signal and high-frequency signal interaction.

[0019] LEGEND:

[0020] 1, circuit board body; 2, power supply unit; 3, radio frequency transceiver unit; 4, antenna matching unit; 5, information processing unit; 6, CAN low-frequency communication unit; 7, CAN high-frequency communication unit. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figs. 1-3 The present application provides a technical solution: a signal transmission chip circuit board for low-frequency signal and high-frequency signal interaction, comprising a circuit board body 1, a plurality of power supply units 2, a radio frequency transceiver unit 3, an antenna matching unit 4 and an information processing unit 5 are arranged on the circuit board body 1, the plurality of power supply units 2, the radio frequency transceiver unit 3 and the antenna matching unit 4 are all electrically connected with the information processing unit 5, and the information processing unit 5 is connected with a CAN low-frequency communication unit 6 and a CAN high-frequency communication unit 7.

[0023] The CAN low-frequency communication unit 6 is a BLE low-power Bluetooth BLE communication;

[0024] The CAN low-frequency communication unit 6 is a low-frequency 135kHz communication;

[0025] The information processing unit 5 communicates through an OBD interface protocol;

[0026] The overall power consumption of the circuit board body 1 is ≤500mW.

[0027] Low-power supply is realized through the power supply unit, basic smart card key function implementation is realized through the radio frequency transceiver unit and the antenna matching unit, low-frequency signals and high-frequency signals of the CAN low-frequency communication unit and the CAN high-frequency communication unit are interacted through the information processing unit, and then the use requirements of users are met.

[0028] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A signal transmission chip circuit board in which low frequency signals interact with high frequency signals, characterized by: The application relates to a circuit board body provided with a plurality of power supply units, a radio frequency transceiving unit, an antenna matching unit and an information processing unit, wherein the plurality of power supply units, the radio frequency transceiving unit and the antenna matching unit are electrically connected with the information processing unit, and the information processing unit is connected with a CAN low-frequency communication unit and a CAN high-frequency communication unit.

2. The signal transmission chip circuit board of claim 1, wherein, The CAN low-frequency communication unit is a BLE low-power Bluetooth BLE communication unit.

3. The signal transmission chip circuit board of claim 1, wherein, The CAN low-frequency communication unit is a low-frequency 135 kHz communication unit.

4. The signal transmission chip circuit board of claim 1, wherein, The information processing unit communicates through an OBD interface protocol.

5. The signal transmission chip circuit board of claim 1, wherein, The overall power consumption of the circuit board body is less than or equal to 500 mW.

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