Radio frequency data transmission method and device, storage medium, key and vehicle

Abstract

This application provides a radio frequency data transmission method, apparatus, storage medium, key, and vehicle, belonging to the technical field of data transmission. The method includes, in response to a user's selection operation, sending multiple message data packets corresponding to the selection operation at intervals to a vehicle at preset transmission frequency points; wherein the multiple message data packets represent the same information, and the transmission frequencies corresponding to two adjacent message data packets are different and have a difference at the megahertz level; receiving a reply message returned by the vehicle after receiving any message data packet by switching receivable frequencies, wherein the receivable frequencies of the vehicle are each frequency point in the preset transmission frequency point sequence. This application aims to enhance the effect of resisting co-channel interference.

Description

Technical Field

[0001] This application relates to the technical field of data transmission, and more specifically, to a radio frequency data transmission method, apparatus, storage medium, key, and vehicle. Background Technology

[0002] With the development of automotive technology, radio frequency transmission is becoming more and more popular in automobiles. Currently, automotive radio frequency can only use a few fixed civilian frequency bands. However, in other industries that use radio frequency transmission, some radio frequency components also use the same frequency bands. Therefore, in order to avoid co-channel interference between automotive radio and other radio, many vehicles adopt a small frequency hopping method.

[0003] However, in actual use, the small frequency hopping method can only solve part of the co-channel interference, because different devices may use different frequencies within a frequency band. Even with small frequency hopping, there will still be a lot of co-channel interference. Therefore, how to solve co-channel interference more effectively is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a radio frequency data transmission method, apparatus, storage medium, key, and vehicle, aiming to enhance the effect of resisting co-channel interference.

[0005] In a first aspect, embodiments of this application provide a radio frequency data transmission method applied to a key terminal, the method comprising:

[0006] In response to the user's selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle at intervals according to a preset transmission frequency sequence;

[0007] The multiple message data packets represent the same information, and each message packet includes multiple frames of data. The transmission frequency points of two adjacent message data packets are different, and the transmission frequency points of two adjacent message data packets have a difference at the megahertz level.

[0008] The system receives a reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency points, wherein the receivable frequency points of the vehicle terminal are each frequency point in the preset transmission frequency point sequence.

[0009] Optionally, after receiving the reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency, the method further includes:

[0010] Parse the reply message to obtain the priority frequency point specified by the vehicle for sending the next message data packet;

[0011] In response to the user's next selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle based on the priority frequency point.

[0012] Optionally, the interval at which the key terminal sends the message data packet is greater than the interval at which the vehicle terminal switches the receivable frequency.

[0013] Optionally, each frame of the message data packet includes the frequency point for the next transmission of the message data packet.

[0014] Optionally, in response to the user's next selection operation, based on the priority frequency point, multiple message data packets corresponding to the selection operation are sent to the vehicle terminal, further including:

[0015] In response to the user's next selection operation, the first of the multiple message data packets corresponding to the selection operation is sent to the vehicle at the priority frequency.

[0016] The remaining message data packets corresponding to the selection operation are sent to the vehicle terminal at a preset transmission frequency sequence.

[0017] Optionally, the key terminal sends the message data packet at an interval of less than 10ms.

[0018] Optionally, the interval between switching the receivable frequency on the vehicle side is less than 8ms.

[0019] Optionally, the key end transmits a high-frequency signal.

[0020] Secondly, embodiments of this application provide a radio frequency data transmission method applied to a vehicle, the method comprising:

[0021] Send low-frequency message data to the key terminal, wherein the low-frequency message data contains a first high-frequency point that is available to the key terminal when responding;

[0022] If no high-frequency response message is received from the key terminal at the first high-frequency point within the specified time period, the low-frequency message data is sent to the key terminal again, and the low-frequency message data contains a second high-frequency point, which is different from the first high-frequency point.

[0023] If the vehicle terminal does not receive a high-frequency response message sent by the key terminal at the second high-frequency point within the specified time period, the function represented by the low-frequency message data and the high-frequency message data fails to execute.

[0024] Thirdly, embodiments of this application provide a radio frequency data transmission device applied to a key terminal, the device comprising:

[0025] The first sending module is used to respond to the user's selection operation by sending multiple message data packets corresponding to the selection operation to the vehicle terminal at intervals according to a preset sending frequency sequence; wherein, the multiple message data packets represent the same information, and each message packet includes multiple frames of data, the sending frequency points corresponding to two adjacent message data packets are different, and the sending frequency points corresponding to two adjacent message data packets have a difference at the megahertz level.

[0026] The first receiving module is used to receive a reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency points, wherein the receivable frequency points of the vehicle terminal are each frequency point in the preset transmission frequency point sequence.

[0027] Fourthly, embodiments of this application provide a radio frequency data transmission device applied to a vehicle, the device comprising:

[0028] The second sending module is used to send low-frequency message data to the key terminal, wherein the low-frequency message data contains a first high-frequency point that is available to the key terminal when it responds;

[0029] The second receiving module is used to receive the high-frequency reply message returned by the key terminal;

[0030] The processing module is used to control the second sending module to send the low-frequency message data to the key terminal again when no high-frequency reply message sent by the key terminal at the first high-frequency point is received within the calibrated time period. The low-frequency message data contains a second high-frequency point, which is different from the first high-frequency point.

[0031] The processing module is further configured to determine that the function represented by the low-frequency message data and the high-frequency message data has failed when the vehicle does not receive a high-frequency reply message sent by the key terminal at the second high-frequency point within a calibrated time period.

[0032] Fifthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the radio frequency data transmission method as described in the first aspect of the embodiments, or the radio frequency data transmission method as described in the second aspect of the embodiments.

[0033] In a sixth aspect, embodiments of this application provide a key on which a radio frequency data transmission device as described in the third aspect of the embodiment is provided, the device performing the radio frequency data transmission method as described in the first aspect of the embodiment.

[0034] In a seventh aspect, embodiments of this application provide a vehicle having a radio frequency data transmission device as described in the fourth aspect of the embodiment, the device performing the radio frequency data transmission method as described in the second aspect of the embodiment.

[0035] Beneficial effects:

[0036] When the key sends a message to the vehicle, multiple identical message data packets are sent for each selection operation. Each message data packet contains multiple frames of data. These multiple message data packets are sent according to a preset transmission frequency sequence. Since the transmission frequencies of adjacent message data packets are different, and there is a difference of megahertz between the corresponding transmission frequencies of adjacent message data packets, the transmission frequency difference of adjacent message data packets in this method is larger than that of co-channel interference, which is more effective in mitigating co-channel interference. Furthermore, by sending multiple identical message data packets corresponding to each selection operation based on multiple different transmission frequencies, it is possible to effectively prevent the vehicle from missing the message data packets of the selection operation due to interference, thereby enhancing the anti-interference effect. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a flowchart of the steps of a radio frequency data transmission method according to an embodiment of this application;

[0039] Figure 2 This is a flowchart of the steps of a radio frequency data transmission method according to an embodiment of this application;

[0040] Figure 3 This is a flowchart of the steps of a radio frequency data transmission method according to an embodiment of this application;

[0041] Figure 4 This is a functional block diagram of a radio frequency data transmission device according to an embodiment of this application;

[0042] Figure 5 This is a functional block diagram of a radio frequency data transmission device according to an embodiment of this application. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] Reference Figure 1 The diagram illustrates a flowchart of a radio frequency data transmission method according to an embodiment of the present invention. The method is applied to a key terminal and may specifically include the following steps:

[0045] S101: In response to the user's selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle at intervals using a preset transmission frequency sequence.

[0046] In this step, after the user makes a selection operation on the key terminal, the key terminal responds to the user's selection operation by loading the message data packet corresponding to the selection operation onto a high-frequency signal and sending it to the vehicle terminal.

[0047] To address the issue of co-channel interference, this application sends multiple message data packets for the same selection operation interval. These multiple message data packets represent the same information, and each message data packet contains multiple frames of data. For example, in one feasible implementation, each selection operation can send four message data packets, each containing three frames. By sending multiple identical message data packets, interference can prevent the vehicle's signal receiver from missing some message data packets. The number of message data packets can be set according to actual conditions.

[0048] Simultaneously, multiple message data packets are sent according to a preset transmission frequency sequence. The transmission frequencies corresponding to two adjacent message data packets are different, and the transmission frequencies corresponding to two adjacent message data packets have a difference at the megahertz level. For example, in one feasible implementation, the preset transmission frequency sequence corresponding to four identical message data packets can be set to 433.42MHz, 314.42MHz, 433.42MHz, and 314.42MHz. In other implementations, each frequency in the preset transmission frequency sequence can also be different.

[0049] By using different transmission frequencies with a large difference at the megahertz level to send multiple message data packets, the anti-interference effect is better than that of small frequency hopping, which can significantly improve the success rate of radio frequency transmission at the key end and vehicle end.

[0050] S102: Receive a reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency points, wherein the receivable frequency points of the vehicle terminal are each frequency point in the preset transmission frequency point sequence.

[0051] The vehicle's signal receiver is pre-configured so that the vehicle can successfully receive each frequency in the preset transmission frequency sequence. The vehicle can switch to the current receivable frequency according to the preset transmission frequency sequence. However, in order to avoid missing the message data packets sent by the key, the interval between the key sending message data packets must be greater than the interval between the vehicle switching the receivable frequency.

[0052] For example, in one feasible implementation, the interval between the key end sending message data packets is less than 10ms, the interval between the vehicle end switching the receivable frequency is less than 8ms, and the interval between the key end sending message data packets is greater than the interval between the vehicle end switching the receivable frequency.

[0053] If the vehicle receives any one of the multiple message data packets, it sends a reply message for that message data packet to the key terminal at the same frequency as the sending frequency corresponding to that message data packet.

[0054] In practice, the key sends multiple identical message data packets. After the vehicle responds to one received message data packet, it does not process subsequent received message data packets, thereby reducing processing costs.

[0055] Reference Figure 2 The flowchart illustrating the steps of the radio frequency data transmission method provided in the embodiments of this application is shown, such as... Figure 2 As shown, in one feasible implementation, the radio frequency data transmission method, in addition to steps S101-S102, also includes the following steps:

[0056] S103: Parse the reply message to obtain the priority frequency point specified by the vehicle for sending message data packets next.

[0057] To further enhance anti-interference capabilities, the vehicle can specify the priority frequency for the key terminal to send the next message data packet. Specifically, if the vehicle does not detect a signal from a certain frequency in the preset transmission frequency sequence for a long time, it can indicate that there is less interference at that frequency, and thus that frequency can be added to the reply message.

[0058] After receiving the reply message, the key terminal parses it to obtain the priority frequency point specified by the vehicle terminal for the next message data packet transmission. When sending the message data packet next time, it first sends it based on the priority frequency point. Since the vehicle terminal can determine the frequency point with the least interference among its multiple receivable frequencies, sending the message data packet from the key terminal to the vehicle terminal using the priority frequency point with the least interference improves the success rate of message transmission. Therefore, while sending message data packets according to the preset transmission frequency point sequence using transmission frequency points with a large difference at the megahertz level, the vehicle terminal can also specify the transmission frequency point with the least interference for the key terminal, which can further improve the anti-interference capability of the radio frequency transmission process of the key terminal and the vehicle terminal.

[0059] S104: In response to the user's next selection operation, send multiple message data packets corresponding to the selection operation to the vehicle terminal based on the priority frequency point.

[0060] When the user triggers the selection operation again, the key terminal still sends multiple identical message data packets corresponding to this selection operation at intervals.

[0061] Specifically, when sending multiple message data packets corresponding to this selection operation to the vehicle, the first message data packet is sent using a priority frequency. The remaining message data packets, excluding the first one, can continue to be sent according to the preset sending frequency sequence.

[0062] For example, each selection operation corresponds to 4 message data packets. The preset transmission frequency sequence can be set to 433.42MHz, 314.42MHz, 433.42MHz, and 314.42MHz. The vehicle terminal specifies in the reply message of the message data packet corresponding to the previous selection operation that the priority frequency is 314.42MHz. Then, the transmission frequency of the 4 message data packets corresponding to this selection operation is the priority frequency 314.42MHz. The preset sequence of the 2nd to 4th message data packets is sent, and the transmission frequency of the remaining message data packets is 433.42MHz, 314.42MHz, and 433.42MHz respectively.

[0063] Furthermore, in addition to the vehicle end being able to specify the priority frequency point for the key end to send the next message data packet, the key end can also inform the vehicle end of the frequency point used for the first message data packet corresponding to the next selection operation. That is, each frame of the message data packet corresponding to the current selection operation contains the frequency point at which the key end sends the first message data packet corresponding to the next selection operation.

[0064] Furthermore, this radio frequency data transmission method can improve the anti-interference capability of the radio frequency transmission process of both the key and the vehicle by sending the same message data packet multiple times using frequencies with significant differences, and by allowing the vehicle to specify a less interfered frequency point for the key to send the next message data packet based on the current signal reception.

[0065] Reference Figure 3 This diagram illustrates a flowchart of a radio frequency data transmission method provided in this embodiment, applied to a vehicle. The method specifically includes the following steps:

[0066] S201: Send low-frequency message data to the key terminal, the low-frequency message data containing a first high-frequency point that is available to the key terminal when responding.

[0067] When the vehicle actively sends a message to the key terminal, it sends low-frequency message data, which may contain one data packet, and each data packet contains two frames.

[0068] After receiving the low-frequency message data, the key terminal needs to respond to the low-frequency message data. The low-frequency message data specifies the first high-frequency point to be used for the response. After parsing the low-frequency message data to obtain the first high-frequency point, the key terminal sends the high-frequency response message corresponding to the low-frequency message data to the vehicle terminal at the first high-frequency point. The high-frequency response message is also a data packet containing 2 frames.

[0069] Based on the actual situation of the numerous signals it receives, the vehicle selects the first high-frequency point as the available transmission frequency with the least interference. The key terminal replies to messages through the first high-frequency point, which can improve the anti-interference capability of the radio frequency transmission process of both the key terminal and the vehicle terminal, thereby improving the success rate of radio frequency transmission.

[0070] S202: If no high-frequency reply message is received from the key terminal at the first high-frequency point within the calibrated time period, the low-frequency message data is sent to the key terminal again, and the low-frequency message data contains a second high-frequency point, which is different from the first high-frequency point.

[0071] After the vehicle specifies the first high-frequency point, it also adjusts its own receivable frequency to the first high-frequency point in order to receive the high-frequency reply message sent by the key terminal.

[0072] If the vehicle does not receive a high-frequency response message from the key terminal within the specified time period, it may be due to interference or other issues with the first high-frequency frequency. Therefore, it sends a low-frequency message with the same content to the key terminal again, but the frequency specified in the retransmitted low-frequency message is changed to the second high-frequency frequency, and the vehicle adjusts its own receptive frequency to the second high-frequency frequency, and continues to wait for the high-frequency response message sent by the key terminal at the second high-frequency frequency.

[0073] S203: If the vehicle terminal does not receive a high-frequency reply message sent by the key terminal at the second high-frequency point within the calibrated time period, the function represented by the low-frequency message data and the high-frequency message data fails to execute.

[0074] If the vehicle does not receive a high-frequency response message from the key terminal at the second high-frequency point within the specified time, the function execution will fail.

[0075] In this radio frequency data transmission method, when the vehicle actively sends low-frequency message data to the key terminal, the vehicle terminal specifies the transmission frequency point for the key terminal to send a high-frequency reply message based on the actual situation of the numerous signals it receives. This transmission frequency point is a usable frequency point with less interference at present. Furthermore, if no high-frequency reply message is received, the specified frequency point is changed to continue sending once, thereby improving the anti-interference capability of the radio frequency transmission process of both the key terminal and the vehicle terminal, and thus improving the success rate of radio frequency transmission.

[0076] Reference Figure 4 This diagram illustrates a functional block diagram of a radio frequency data transmission device provided in this embodiment. The device is applied to a key terminal and includes:

[0077] The first sending module 101 is used to respond to the user's selection operation by sending multiple message data packets corresponding to the selection operation to the vehicle terminal at intervals according to a preset sending frequency sequence; wherein, the multiple message data packets represent the same information, and each message packet includes multiple frames of data, the sending frequency points corresponding to two adjacent message data packets are different, and the sending frequency points corresponding to two adjacent message data packets have a difference at the megahertz level.

[0078] The first receiving module 102 is used to receive a reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency points, wherein the receivable frequency points of the vehicle terminal are each frequency point in the preset transmission frequency point sequence.

[0079] Optionally, the device further includes:

[0080] The parsing module is used to parse the reply message and obtain the priority frequency point specified by the vehicle end for sending the next message data packet;

[0081] The first sending module is used to respond to the user's next selection operation by sending multiple message data packets corresponding to the selection operation to the vehicle terminal based on the priority frequency point.

[0082] Reference Figure 5 This diagram illustrates a functional block diagram of a radio frequency data transmission device provided in this embodiment. The device is applied to a vehicle and includes:

[0083] The second sending module 201 is used to send low-frequency message data to the key terminal, wherein the low-frequency message data includes a first high-frequency point that is available to the key terminal when responding;

[0084] The second receiving module 202 is used to receive the high-frequency reply message returned by the key terminal;

[0085] Processing module 203 is used to control the second sending module to send the low-frequency message data to the key terminal again when no high-frequency reply message sent by the key terminal at the first high-frequency point is received within the calibrated time period, and the low-frequency message data contains a second high-frequency point, the second high-frequency point being different from the first high-frequency point;

[0086] The processing module 203 is further configured to determine that the function represented by the low-frequency message data and the high-frequency message data has failed when the vehicle does not receive a high-frequency reply message sent by the key terminal at the second high-frequency point within a calibrated time period.

[0087] This application embodiment also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the radio frequency data transmission method described in steps S101-S102 or S101-S104 of the embodiment, or the radio frequency data transmission method described in steps S201-S203.

[0088] This application embodiment also provides a key, which is provided with a radio frequency data transmission device applied to the key end, the device performing the radio frequency data transmission method as described in steps S101-S102 or S101-S104 of the embodiment.

[0089] This application embodiment also provides a vehicle, which has a radio frequency data transmission device for use on the vehicle end, and the device performs the radio frequency data transmission method described in steps S201-S203.

[0090] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0091] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0092] This application describes embodiments with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0093] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0094] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0095] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0096] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0097] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A radio frequency data transmission method, characterized by, Applied to the end of a key, the method includes: In response to the user's selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle at intervals according to a preset transmission frequency sequence; The multiple message data packets represent the same information, and each message data packet includes multiple frames of data. The transmission frequency points of two adjacent message data packets are different, and the transmission frequency points of two adjacent message data packets have a difference at the megahertz level. The system receives a reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency points, wherein the receivable frequency points of the vehicle terminal are each frequency point in the preset transmission frequency point sequence. After receiving the reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency, the method further includes: Parse the reply message to obtain the priority frequency point specified by the vehicle for sending the next message data packet; the priority frequency point is the frequency point with the least interference among the multiple receivable frequencies of the vehicle. In response to the user's next selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle based on the priority frequency point.

2. The method of claim 1, wherein, The interval at which the key terminal sends the message data packet is greater than the interval at which the vehicle terminal switches between receivable frequencies.

3. The method according to claim 1, characterized in that, Each frame of the message data packet contains the frequency point for the next transmission of the message data packet.

4. The method according to claim 1, characterized in that, In response to the user's next selection operation, based on the priority frequency point, multiple message data packets corresponding to the selection operation are sent to the vehicle terminal, including: In response to the user's next selection operation, the first of the multiple message data packets corresponding to the selection operation is sent to the vehicle at the priority frequency. The remaining message data packets corresponding to the selection operation are sent to the vehicle terminal at a preset transmission frequency sequence.

5. The method according to any one of claims 2-4, characterized in that, The key terminal sends the message data packets at intervals of less than 10ms.

6. The method according to claim 5, characterized in that, The interval between switching the receivable frequency on the vehicle side is less than 8ms.

7. The method according to claim 1, characterized in that, The key end sends a high-frequency signal.

8. A method for transmitting radio frequency data, characterized in that, Applied to the vehicle end, the method includes: Send low-frequency message data to the key terminal, wherein the low-frequency message data contains a first high-frequency point that is available to the key terminal when responding; If no high-frequency response message is received from the key terminal at the first high-frequency point within the specified time period, the low-frequency message data is sent to the key terminal again, and the low-frequency message data contains a second high-frequency point, which is different from the first high-frequency point. If the vehicle terminal does not receive a high-frequency response message sent by the key terminal at the second high-frequency point within the specified time period, the function represented by the low-frequency message data and the high-frequency response message data fails to execute. The key end is used for: In response to the user's selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle at intervals according to a preset transmission frequency sequence; The multiple message data packets represent the same information, and each message data packet includes multiple frames of data. The transmission frequency points of two adjacent message data packets are different, and the transmission frequency points of two adjacent message data packets have a difference at the megahertz level. The system receives a reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency points, wherein the receivable frequency points of the vehicle terminal are each frequency point in the preset transmission frequency point sequence. After receiving the reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency, the method further includes: Parse the reply message to obtain the priority frequency point specified by the vehicle for sending the next message data packet; the priority frequency point is the frequency point with the least interference among the multiple receivable frequencies of the vehicle. In response to the user's next selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle based on the priority frequency point.

9. A radio frequency data transmission device, characterized in that, Applied to the end of a key, the device includes: The first sending module is used to respond to the user's selection operation by sending multiple message data packets corresponding to the selection operation to the vehicle terminal at intervals according to a preset sending frequency sequence; wherein, the multiple message data packets represent the same information, and each message data packet includes multiple frames of data, the sending frequency points corresponding to two adjacent message data packets are different, and the sending frequency points corresponding to two adjacent message data packets have a difference at the megahertz level. The first receiving module is used to receive a reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency points, wherein the receivable frequency points of the vehicle terminal are each frequency point in the preset transmission frequency point sequence; The device further includes: The parsing module is used to parse the reply message and obtain the priority frequency point specified by the vehicle end for sending the message data packet next; the priority frequency point is the frequency point with the least interference among the multiple receivable frequencies of the vehicle end. The first sending module is used to respond to the user's next selection operation by sending multiple message data packets corresponding to the selection operation to the vehicle terminal based on the priority frequency point.

10. A radio frequency data transmission device, characterized in that, Applied to the vehicle end, the device includes: The second sending module is used to send low-frequency message data to the key terminal, wherein the low-frequency message data contains a first high-frequency point that is available to the key terminal when it responds; The second receiving module is used to receive the high-frequency reply message returned by the key terminal; The processing module is used to control the second sending module to send the low-frequency message data to the key terminal again when no high-frequency reply message sent by the key terminal at the first high-frequency point is received within the calibrated time period. The low-frequency message data contains a second high-frequency point, which is different from the first high-frequency point. The processing module is further configured to determine, when the vehicle does not receive a high-frequency response message sent by the key terminal at the second high-frequency point within a specified time period, that the function represented by the low-frequency message data and the high-frequency response message data has failed to execute. The key end is used for: In response to the user's selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle at intervals according to a preset transmission frequency sequence; The multiple message data packets represent the same information, and each message data packet includes multiple frames of data. The transmission frequency points of two adjacent message data packets are different, and the transmission frequency points of two adjacent message data packets have a difference at the megahertz level. The system receives a reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency points, wherein the receivable frequency points of the vehicle terminal are each frequency point in the preset transmission frequency point sequence. After receiving the reply message returned by the vehicle terminal after receiving any of the message data packets by switching the receivable frequency, the method further includes: Parse the reply message to obtain the priority frequency point specified by the vehicle for sending the next message data packet; the priority frequency point is the frequency point with the least interference among the multiple receivable frequencies of the vehicle. In response to the user's next selection operation, multiple message data packets corresponding to the selection operation are sent to the vehicle based on the priority frequency point.

11. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the radio frequency data transmission method as described in any one of claims 1 to 7, or the radio frequency data transmission method as described in claim 8.

12. A key, characterized in that, The key is provided with a radio frequency data transmission device as described in claim 9, and the device performs the radio frequency data transmission method as described in any one of claims 1 to 7.

13. A vehicle, characterized in that, The vehicle has a radio frequency data transmission device as described in claim 10, and the device performs the radio frequency data transmission method as described in claim 8.

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