Universal automobile remote control key

Abstract

The utility model discloses a universal automobile remote control key. The universal automobile remote control key comprises a control module, a radio frequency transmitting module, a storage module, a wireless matching communication module, an encryption module and a key module, the key module, the radio frequency transmitting module and the storage module are respectively connected with the control module; and the wireless matching communication module and the storage module are respectively connected with the encryption module. According to the universal automobile remote control key, by integrating a plurality of functional modules such as the control module, the radio frequency sending module, the storage module, the wireless matching communication module, the encryption module and the key module, efficient and safe automobile remote control is achieved, and meanwhile good compatibility with different automobile types is kept; illegal copying and signal interference can be effectively prevented, and the property safety of a vehicle owner is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, especially to a general automobile remote key. BACKGROUND

[0002] With the rapid development of the automobile industry and the progress of intelligent technology, automobile remote keys have evolved from simple lock and unlock functions to intelligent devices integrating remote control, identity authentication, data encryption and other functions. However, most of the automobile remote keys on the market are designed for specific brands or models, lack of universality, and still need to be improved in some safety performance. Therefore, it is particularly important to develop a general automobile remote key that is both safe and widely applicable. SUMMARY

[0003] The utility model discloses a general automobile remote key to solve the problem in the prior art. To achieve the above object, the utility model provides the following technical scheme:

[0004] A general automobile remote key, comprising a control module, a radio frequency transmission module, a storage module, a wireless matching communication module, an encryption module and a key module; the key module, the radio frequency transmission module and the storage module are connected with the control module respectively; the wireless matching communication module and the storage module are connected with the encryption module respectively.

[0005] Further, the control module adopts a main chip with a model number of SI4010.

[0006] Further, the encryption module adopts an anti-theft encryption chip with a model number of 26A0700.

[0007] Further, the control module and the encryption module communicate with the storage module through SPI communication protocol.

[0008] Further, the storage module adopts a storage chip with a model number of EN25F40.

[0009] Further, the general automobile remote key further comprises a wired communication module, and the wired communication module is connected with the storage module.

[0010] Further, the general automobile remote key further comprises a signal prompting module, and the signal prompting module is connected with the control module.

[0011] The utility model discloses a beneficial effect lies in: the utility model discloses general type automobile remote control key, through the integration control module, radio frequency sending module, storage module, wireless matching communication module, encryption module and button module etc. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic drawing of the utility model.

[0013] Figure 2 It is the principle schematic drawing of general type automobile remote control key of the utility model embodiment.

[0014] Figure 3 It is the principle schematic drawing of storage module of the utility model embodiment.

[0015] Figure 4 It is the principle schematic drawing of wireless matching communication module of the utility model embodiment. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is in conjunction with the drawing and embodiment, and the utility model is further detailedly explained.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0017] As Figure 1 And Figure 2 Shown, a kind of general type automobile remote control key, its shell is made of high-strength plastic material, with the characteristics of anti-falling, waterproof, and can be modified according to customer demand, corresponding shell shape;Inside the key, there are 4 control buttons, and the number of required buttons can also be defined freely according to customer demand.The main structure of the key includes control module, radio frequency sending module, storage module, wireless matching communication module, encryption module and button module.Button module, radio frequency sending module and storage module are connected with control module respectively;Wireless matching communication module and storage module are connected with encryption module respectively.

[0018] The working principle of the general type automobile remote control key is as follows:

[0019] When using automobile remote control key and automobile are matched, in order to avoid the interference, loss and damage of automobile signal in matching process, wireless matching communication module uses special frequency selection circuit to receive the wireless signal sent by automobile;Then encryption module according to this specific frequency anti-theft information waveform, the specific frequency electromagnetic signal is converted into data signal, and the automobile signal is encrypted;Again through SPI interface, automobile signal is sent to storage module and is stored.

[0020] When the car remote key is used, the control module calls the data in the storage module, and the anti-theft data of the storage module is unlocked and identified, and then the function key signal matched with the car is sent through the radio frequency sending module, so that the safe matching use of the car can be enhanced.

[0021] When the car remote key is used, the control module calls the data in the storage module, and the anti-theft data of the storage module is unlocked and identified, and then the function key signal matched with the car is sent through the radio frequency sending module, so that the safe matching use of the car can be enhanced.

[0022] When the car remote key is not used, the key will enter a dormant state to reduce the power consumption of the car remote key and increase the service life of the battery.

[0023] The universal car remote key of the application integrates control module, radio frequency sending module, storage module, wireless matching communication module, encryption module and key module, realizes efficient and safe remote control of the car, maintains good compatibility with different car models, effectively prevents illegal copying and signal interference, and protects the property safety of the car owner.

[0024] In this embodiment, see Figure 2 The control module uses a main chip with model SI4010, which has the characteristics of low power consumption and high performance, can effectively process the instructions from the key module, and coordinate the work of other modules. The operation of key detection and key wireless data sending depends on the chip, the carrier frequency accuracy of SI4010 can reach 150ppm, which is twice that of traditional low-cost SAW transmitter, and the output power is also higher with +10dBm. There is also an external crystal oscillator in the peripheral circuit of SI4010, which is used to replace the internal crystal oscillator of SI4010 to improve the accuracy of wireless data transmission. There are also four grounded key switches in the peripheral circuit of SI4010, which are used to detect the pressing of the function keys and realize the key action.

[0025] In this embodiment, see Figure 4 The encryption module uses a theft-proof encryption chip with model 26A0700, which is responsible for data encryption and decryption to enhance the security of the remote key. It also has SPI communication pins that can communicate with the storage module and the control module.

[0026] In this embodiment, see Figure 1 The control module and the encryption module communicate with the storage module through the SPI communication protocol, which improves the efficiency and reliability of data transmission.

[0027] In this embodiment, seeFigure 3 The storage module adopts a storage chip of model EN25F40, which is a 512KB serial flash memory chip, divided into 2048 interfaces, each interface can program 256 bytes, and also provides software and hardware write protection function for data protection. EN25F40 also has SPI interface, which can be used for communication function between the main chip and the anti-theft encryption chip, and also can write the data to be saved through the external SPI interface of P1.

[0028] In order to increase the flexibility and convenience of the key, see Figure 1 and Figure 3 The embodiment also includes a wired communication module connected with the storage module, which provides a wired writing function, supports data exchange with a computer or other devices through a USB or other wired interface, and writes data into the storage module. The control module can call the data in the storage module according to the different data content and storage location of the written data, to realize the functions of modifying the key function, modifying the key sending frequency, modifying the sending content, etc., to improve the autonomy and selectivity.

[0029] In order to provide better user experience, see Figure 1 and Figure 2 The embodiment also provides an indicator light D1 as a signal prompt module, which is connected with the control module. When the car key key is pressed to send code, if the key is normal, the indicator light D1 will be lit, enhancing the intuitiveness of user interaction.

[0030] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A universal type automotive remote key, characterized by, Including control module, radio frequency sending module, storage module, wireless matching communication module, encryption module and button module, the button module, the radio frequency sending module and the storage module are connected with the control module respectively, the wireless matching communication module and the storage module are connected with the encryption module respectively.

2. The universal automotive key fob of claim 1, wherein, The control module adopts the main chip of SI4010 type.

3. The universal automotive key fob of claim 1, wherein, The encryption module adopts the anti-theft encryption chip of 26A0700 type.

4. The universal automotive key of claim 1, wherein, The control module and the encryption module communicate with the storage module through SPI communication protocol.

5. The universal automotive key of claim 1, wherein, The storage module adopts the storage chip of EN25F40 type.

6. The universal automotive key fob of claim 1, wherein, The universal type automobile remote key further includes wired communication module, and the wired communication module is connected with the storage module.

7. The universal automotive key fob of claim 1, wherein, The universal type automobile remote key further includes signal prompting module, and the signal prompting module is connected with the control module.

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