Signal transmission method, device and equipment

Abstract

The present invention provides a signal transmission method, apparatus, and device. The method on a first communication device includes: broadcasting separate radio frequency identification (RFID) control signaling via a public protocol interface; and receiving a reflected signal fed back by a tag device. The reflected signal is a signal generated by the tag device reflecting an excitation signal sent by a second communication device within the coverage area of ​​the first communication device after receiving the RFID control signal. This technical solution enables the transmission of control signaling based on a public protocol, avoiding the development difficulties associated with proprietary protocols. It also integrates the functions of connected vehicle devices and RFID devices, improving device integration.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a signal transmission method, device and equipment. Background Art

[0002] The existing separate RFID architecture consists of a receiver, an exciter, and a tag, where the receiver and the exciter communicate using a proprietary protocol. This existing architecture has the following problems:

[0003] 1. Use of proprietary protocols, poor compatibility and scalability: To use this architecture, you must use a company's equipment and protocol authorization.

[0004] 2. Complex software and hardware structure and high cost: To achieve private protocol communication between the controller / receiver and the exciter, both devices need to support the protocol in both software and hardware, which greatly increases hardware cost, software development difficulty, and equipment complexity. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a signal transmission method, device and equipment to improve the integration of equipment, realize direct communication between devices, and reduce the deployment cost and operation and maintenance management cost of business applications.

[0006] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0007] An embodiment of the present invention provides a signal transmission method, applied to a first communication device, the method comprising:

[0008] Broadcasting separate radio frequency identification (RFID) control signaling via a public protocol interface;

[0009] Receive a reflection signal fed back by the tag device, where the reflection signal is a reflection signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage of the first communication device to the tag device after receiving an RFID control signal.

[0010] Optionally, after receiving the reflected signal fed back by the tag device, the method further includes:

[0011] broadcasting a confirmation message to the second communication device through a public protocol interface;

[0012] Receive the tag-related information fed back by the tag device; the tag-related information is sent by the tag device after receiving the confirmation message forwarded by the second communication device.

[0013] Optionally, after receiving the tag-related information fed back by the tag device, the method further includes:

[0014] broadcasting request sequence information to the second communication device via a public protocol interface;

[0015] receiving a first status request fed back by the tag device; the first status request is sent by the tag device after receiving the request sequence information forwarded by the second communication device;

[0016] A control command for controlling the tag device to enter the first state is broadcast to the second communication device through a public protocol interface, and the second communication device sends the control command to the tag device.

[0017] Optionally, the signal transmission method further includes:

[0018] Send a first vehicle-to-everything (V2X) message to a second communication device within coverage of the first communication device.

[0019] Optionally, the signal transmission method further includes:

[0020] A second vehicle-to-external information exchange (V2X) message is received, which is broadcasted by the second communication device through a public protocol interface. The second vehicle-to-external information exchange (V2X) message includes current status information of the second communication device.

[0021] Optionally, the signal transmission method further includes: sending the second vehicle's information exchange V2X message with the outside world and the reflected signal to the Internet of Things platform.

[0022] An embodiment of the present invention further provides a signal transmission method, applied to a second communication device, the method comprising:

[0023] receiving, via a public protocol interface, a separate radio frequency identification (RFID) control signaling broadcast by a first communication device;

[0024] An excitation signal is sent to the tag device according to the radio frequency identification (RFID) control signaling.

[0025] Optionally, after sending an excitation signal to the tag device according to the radio frequency identification RFID control signaling, the signal transmission method further includes:

[0026] receiving a confirmation message broadcasted by the first communication device through the public protocol interface, and sending the confirmation message to the tag device; the confirmation message is broadcasted by the first communication device after receiving a status reply signal fed back by the tag device according to the excitation signal;

[0027] receiving request sequence information broadcast by the first communication device through a public protocol interface;

[0028] According to the request sequence information, a control command for controlling the tag device to enter the first state is sent to the tag device through a public protocol interface; the request sequence is broadcast by the first communication device after receiving the tag-related information fed back by the tag device according to the confirmation message.

[0029] Optionally, the signal transmission method further includes:

[0030] Receiving a first vehicle-to-everything (V2X) message sent by the first communication device within the coverage area of ​​the first communication device; and / or

[0031] A second vehicle-to-everything (V2X) message is sent to the first communication device, where the second vehicle-to-everything (V2X) message includes current status information of the second communication device.

[0032] An embodiment of the present invention further provides a signal transmission apparatus, applied to a first communication device, the apparatus comprising:

[0033] A transceiver module, used for broadcasting split radio frequency identification RFID control signaling through a public protocol interface;

[0034] Receive a reflection signal fed back by the tag device, where the reflection signal is a reflection signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage of the first communication device to the tag device after receiving an RFID control signal.

[0035] An embodiment of the present invention further provides a signal transmission apparatus, applied to a second communication device, the apparatus comprising:

[0036] The transceiver module is configured to receive a separate radio frequency identification (RFID) control signaling broadcast by the first communication device through a public protocol interface; and send an excitation signal to the tag device according to the radio frequency identification (RFID) control signaling.

[0037] An embodiment of the present invention further provides a first communication device, comprising: a first processor, and a first radio frequency unit electrically connected to the first processor;

[0038] The first radio frequency unit includes: a first transceiver module, which is used to broadcast separate radio frequency identification RFID control signaling through a public protocol interface; and receive a reflected signal fed back by a tag device. The reflected signal is a reflected signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage range of the first communication device to the tag device after receiving the RFID control signaling.

[0039] Optionally, the first radio frequency unit further includes: a second transceiver module, configured to send a first vehicle-to-external information exchange V2X message to a second communication device within the coverage of the first communication device.

[0040] An embodiment of the present invention further provides a second communication device, comprising: a second processor, and a second radio frequency unit electrically connected to the second processor;

[0041] The second radio frequency unit includes: a first transceiver module, configured to receive a separate radio frequency identification (RFID) control signaling broadcast by a first communication device through a public protocol interface; and send an excitation signal to a tag device according to the RFID control signaling.

[0042] Optionally, the second radio frequency unit also includes: a second transceiver module, used to receive a first vehicle-to-external information exchange V2X message sent by the first communication device within the coverage range of the first communication device; and / or send a second vehicle-to-external information exchange V2X message to the first communication device, the second vehicle-to-external information exchange V2X message including: current status information of the second communication device.

[0043] An embodiment of the present invention further provides a communication device, comprising: a processor and a memory storing a computer program, wherein the computer program executes the method described above when executed by the processor.

[0044] An embodiment of the present invention further provides a computer-readable storage medium storing instructions, which, when executed on a computer, causes the computer to execute the method described above.

[0045] The above-mentioned scheme of the present invention includes at least the following beneficial effects: broadcasting separate radio frequency identification RFID control signaling through a public protocol interface, and receiving a second communication device within the coverage range of the first communication device. After receiving the RFID control signaling, the second communication device sends an excitation signal to the tag device, and the tag device reflects the excitation signal to obtain a reflected signal; by directly communicating with the public protocol interface, the development difficulty brought by the private protocol is avoided, and at the same time, the low latency and high reliability characteristics of the direct communication provide better communication capabilities for reading radio frequency identification tag devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a flow chart of a signal transmission method according to an embodiment of the present invention;

[0047] Figure 2 This is a flow chart of a signal transmission method according to an optional embodiment of the present invention;

[0048] Figure 31 is a hardware architecture diagram of a first communication device in a signal transmission method according to an embodiment of the present invention;

[0049] Figure 4 1 is a hardware architecture diagram of a second communication device in a signal transmission method according to an embodiment of the present invention;

[0050] Figure 5 It is a module block diagram of a signal transmission device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0051] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0052] like Figure 1 As shown, an embodiment of the present invention provides a signal transmission method, applied to a first communication device, the method comprising:

[0053] Step 11: broadcasting a separate radio frequency identification (RFID) control signaling via a public protocol interface;

[0054] Step 12: Receive a reflection signal fed back by the tag device. The reflection signal is a reflection signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage of the first communication device to the tag device after receiving the RFID control signal.

[0055] In this embodiment, the first communication device may be a device formed by integrating a receiver with a roadside unit (RSU), and the second communication device may be a device formed by integrating an exciter with an on-board unit (OBU). Through device integration, multi-functional integration and RFID service integration are achieved, reducing the deployment cost and operation and maintenance management cost of service applications. The public protocol interface may be a PC5 interface or a Uu interface. The first communication device is deployed at the corresponding location as needed, and the second communication device is deployed on the vehicle and needs to be deployed within the signal reception and transmission coverage of the first communication device. The RFID control signaling may include signaling such as Query / Adjust / Request.

[0056] The first communication device broadcasts RFID control signaling through a public protocol interface. Within the signal reception and transmission coverage of the first communication device, after the RFID control signaling is received by the second communication device, the second communication device sends an excitation signal to the tag device. After receiving the excitation signal, the tag device can process the excitation signal according to a preset processing method, and after processing, send a reflected signal to the first communication device; the first communication device, the second communication device and the tag device can all send and receive information through the public protocol interface, avoiding the problems of poor compatibility and scalability when using private protocols. The first communication device and the second communication device use a public protocol interface for direct communication, without the need to establish a connection, and at the same time have the advantages of low latency and high reliability.

[0057] In an optional embodiment of the present invention, based on the above step 12, the following further comprises:

[0058] Step 13: broadcast a confirmation message to the second communication device through a public protocol interface;

[0059] Step 14: Receive the tag-related information fed back by the tag device; the tag-related information is sent by the tag device after receiving the confirmation message forwarded by the second communication device.

[0060] In this embodiment, after receiving the reflected signal fed back by the tag device, the first communication device broadcasts a confirmation message and monitors tag-related information through a public protocol interface. The tag information may include: PC / EPC / CRC-16 and other information; the confirmation message is received by the second communication device and forwarded to the tag device. After the tag device receives the confirmation information, the tag enters the corresponding state and feeds back tag-related information to the first communication device.

[0061] In an optional embodiment of the present invention, based on the above step 14, the following further comprises:

[0062] Step 15: broadcasting the request sequence information to the second communication device via the public protocol interface;

[0063] Step 16: Receive a first status request fed back by the tag device; the first status request is sent by the tag device after receiving the request sequence information forwarded by the second communication device;

[0064] Step 17: broadcast a control command for controlling the tag device to enter the first state to the second communication device through the public protocol interface, and the second communication device sends the control command to the tag device.

[0065] In this embodiment, after the first communication device receives the tag-related information, it sends request sequence information to the second communication device, which is forwarded to the tag device by the second communication device. After receiving the request sequence information forwarded by the second communication device, the tag device enters the first state and sends a first state request to the first communication device. The first state may include: open, secured, killed, etc.; after receiving the first state request, the first communication device sends a control command to control the tag device to enter the first state to the second communication device, and the control command is forwarded to the tag device by the second communication device. After receiving the control command, the tag device enters the first state.

[0066] In an optional embodiment of the present invention, the signal transmission method further includes: sending a first vehicle-to-external information exchange V2X message to a second communication device within the coverage area of ​​the first communication device.

[0067] Optionally, the signal transmission method further includes: receiving a second vehicle-to-external information exchange V2X message broadcast by the second communication device through a public protocol interface, where the second vehicle-to-external information exchange V2X message includes: current status information of the second communication device.

[0068] Furthermore, the first communication device sends the second vehicle-to-the-outside information exchange V2X message and the reflected signal to the Internet of Things platform.

[0069] In this embodiment, while the first communication device broadcasts the separated radio frequency identification RFID control signaling through the public protocol interface, it also broadcasts the first vehicle-to-the-outside information exchange V2X message to the second communication device through the public protocol interface; within the signal coverage range of the first device, the first communication device can also receive the second vehicle-to-the-outside information exchange V2X message broadcast by the second communication device to the first communication device through the public protocol interface through the shared protocol interface. The second vehicle-to-the-outside information exchange V2X message includes the current status information of the second communication device, such as: the position and heading of the second communication device; it should be known that there is no necessary order between the broadcasting and receiving of V2X messages by the first communication device through the shared protocol interface, and they can be carried out simultaneously or separately. Broadcasting and receiving V2X messages through the public protocol interface not only realizes the information interaction between the first communication device and the second communication device, but also realizes the combination of the functions of the Internet of Vehicles device and the RFID device, thereby improving the integration of the device;

[0070] Furthermore, the first communication device sends the V2X message of information exchange between the second vehicle and the outside world and the reflected signal sent by the tag to the Internet of Things platform, and accurately judges the current status of the tag device based on the V2X message of information exchange between the second vehicle and the outside world and the reflected signal, which not only improves the ability of business integration application, but also simplifies the judgment mechanism.

[0071] Another embodiment of the present invention provides a signal transmission method, applied to a second communication device, the method comprising:

[0072] Step 21: receiving a separate radio frequency identification (RFID) control signaling broadcast by the first communication device through a public protocol interface;

[0073] Step 22: Send an excitation signal to the tag device according to the RFID control signaling.

[0074] In this embodiment, after the second communication device receives the RFID control signaling and processes it according to a preset method, it can send an excitation signal to the tag device via the frequency band 920-925 MHZ to achieve information interaction between the first communication device and the tag device.

[0075] In another optional embodiment of the present invention, based on the above step 22, the following further comprises:

[0076] Step 23: receiving a confirmation message broadcasted by the first communication device through the public protocol interface, and sending the confirmation message to the tag device;

[0077] Step 24: receiving request sequence information broadcast by the first communication device through the public protocol interface;

[0078] Step 25: Send a control command for controlling the tag device to enter the first state to the tag device through the public protocol interface according to the request sequence information.

[0079] Furthermore, the confirmation message is broadcasted by the first communication device after receiving a status reply signal fed back by the tag device according to the excitation signal.

[0080] Furthermore, the request sequence is broadcasted by the first communication device after receiving the tag-related information fed back by the tag device according to the confirmation message.

[0081] In this embodiment, after the second communication device receives the confirmation message, it forwards it to the label device. The label device feeds back label-related messages to the first communication device based on the confirmation message. After the first communication device receives the fed-back label-related messages, it sends request sequence information to the second communication device. The second communication device forwards the request sequence information to the label device. After the label device receives the request sequence information, it feeds back request information for entering the first state to the first communication device. After the first communication device receives the information, it sends a control command to control the label device to enter the first state to the second communication device through the public protocol interface. The second communication device then sends the control command to the label device.

[0082] In another optional embodiment of the present invention, the signal transmission method further includes:

[0083] receiving a first vehicle-to-everything (V2X) information exchange message sent by the first communication device within the coverage area of ​​the first communication device; and / or sending a second vehicle-to-everything (V2X) information exchange message to the first communication device.

[0084] In this embodiment, the second communication device can monitor and receive the first vehicle-to-external information exchange V2X message sent by the first communication device through the public protocol interface, and can also send the second vehicle-to-external information exchange V2X message to the first communication device through the public protocol interface. It should be noted that there is no necessary order between the second communication device receiving and broadcasting V2X messages, and they can be carried out simultaneously or in steps; the information transmission between the first communication device and the second communication device is directly connected through the public protocol interface, without the need to establish a new communication connection, with the characteristics of low latency and high reliability, ensuring the latency requirements required for data transmission.

[0085] Taking the problem of inventory counting of goods in and out of the warehouse as an example, the method described in the above embodiment is specifically explained: wherein, the first communication device is: roadside equipment RSU-receiver, the second communication device is: on-board unit OBU-exciter, such as Figure 2 As shown, the workflow is:

[0086] In step S11, the RSU receiver broadcasts V2X messages and RFID control signals (such as Query / Adjust / Request) through the public protocol interface PC5, and monitors the V2X messages broadcast by vehicles within the range through the OBU PC5.

[0087] In step S12, the OBU exciter enters the coverage area of ​​the RSU receiver's PC5 and monitors the V2X messages and RFID control signaling it broadcasts. On the one hand, it broadcasts its own BSM (Business Service Management) messages (basic vehicle information, including location, speed, heading, etc.) through PC5 at a frequency of 10Hz. On the other hand, the tag device sends excitation signals (such as Query / Adjust / Request) through the frequency band 920-925MHZ.

[0088] Step S13: After the tag device receives the excitation signal, when the slot counter value is 0000h, it enters the Reply state and returns the reflection signal RN16.

[0089] Step S14: The RSU-receiver receives RN16 and broadcasts ACK information to the outside through PC5.

[0090] Step S15: The OBU-activator monitors the ACK confirmation information and sends the ACK confirmation information to the tag device. The tag device enters the acknowledged confirmation state and returns the stored tag-related information, such as PC / EPC / CRC-16 information.

[0091] Step S16: The RSU-receiver receives the PC / EPC / CRC-16 information and broadcasts the timing request Req_RN information externally through PC5.

[0092] In step S17, the OBU-activator monitors the Req_RN information and sends the Req_RN information to the tag device. The tag device enters the first state, such as the open / secured security open state, and sends a handle processing request.

[0093] In step S18, the RSU-receiver receives the handle request sent by the tag and broadcasts the Command (handle) information externally through PC5.

[0094] In step S19, the OBU-activator monitors the Command (handle) information and sends the Command (handle) information to the tag device. The tag device receives the Command (handle) information and enters the killed state.

[0095] In step S20, the RSU-receiver reports the monitored BSM message of the OBU-exciter and the received tag device information to the platform. The platform determines whether the vehicle is entering or leaving the warehouse based on the location, heading and other information contained in the BSM message of the OBU-exciter, thereby completing the inventory management of inbound and outbound goods.

[0096] In this embodiment, PC5 direct communication is adopted between the RSU-receiver and the OBU-exciter, without establishing a connection, ensuring the reading delay requirements of the tag data while avoiding the development difficulties brought by the private protocol; the integration of RFID functions with RSU and OBU functions realizes the sharing of equipment; the Internet of Vehicles business and RFID business are combined to realize the integrated application of business and the integration of platform management functions, which simplifies the cost and resources of management and deployment.

[0097] like Figure 5 As shown, an embodiment of the present invention further provides a signal transmission device 50, which is applied to a first communication device, and includes:

[0098] The transceiver module 51 is used to broadcast separate radio frequency identification RFID control signaling through a public protocol interface; receive a reflected signal fed back by a tag device, wherein the reflected signal is a reflection signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage range of the first communication device to the tag device after receiving the RFID control signaling.

[0099] Optionally, after the transceiver module receives the reflected signal fed back by the tag device, it further includes:

[0100] broadcasting a confirmation message to the second communication device through a public protocol interface;

[0101] Receive the tag-related information fed back by the tag device; the tag-related information is sent by the tag device after receiving the confirmation message forwarded by the second communication device.

[0102] Optionally, after the transceiver module receives the tag-related information fed back by the tag device, it further includes:

[0103] broadcasting request sequence information to the second communication device via a public protocol interface;

[0104] receiving a first status request fed back by the tag device; the first status request is sent by the tag device after receiving the request sequence information forwarded by the second communication device;

[0105] A control command for controlling the tag device to enter the first state is broadcast to the second communication device through a public protocol interface, and the second communication device sends the control command to the tag device.

[0106] Optionally, the transceiver module is further used to send a first vehicle-to-the-world information exchange V2X message to a second communication device within the coverage area of ​​the first communication device.

[0107] Optionally, the transceiver module is further used to receive a second vehicle-to-external information exchange V2X message broadcast by the second communication device through a public protocol interface, where the second vehicle-to-external information exchange V2X message includes: current status information of the second communication device.

[0108] Optionally, the transceiver module is further used to send the V2X message of the second vehicle's information exchange with the outside world and the reflected signal to the Internet of Things platform.

[0109] It should be noted that the device is a device corresponding to the above-mentioned method for indicating access to the network applied to the network side device. All implementation methods of the above-mentioned method are applicable to the embodiments of the device and can achieve the same technical effect. The device also includes a processing module 52 for processing the information sent and received by the transceiver module 51.

[0110] An embodiment of the present invention further provides a signal transmission device, which is applied to a second communication device and includes:

[0111] The transceiver module is configured to receive a separate radio frequency identification (RFID) control signaling broadcast by the first communication device through a public protocol interface; and send an excitation signal to the tag device according to the RFID control signaling.

[0112] Optionally, after the transceiver module is configured to send an excitation signal to the tag device according to the RFID control signaling, it further includes: receiving a confirmation message broadcast by the first communication device through the public protocol interface, and sending the confirmation message to the tag device; the confirmation message is broadcast by the first communication device after receiving a status reply signal fed back by the tag device according to the excitation signal;

[0113] receiving request sequence information broadcast by the first communication device through a public protocol interface;

[0114] According to the request sequence information, a control command for controlling the tag device to enter the first state is sent to the tag device through a public protocol interface; the request sequence is broadcast by the first communication device after receiving the tag-related information fed back by the tag device according to the confirmation message.

[0115] Optionally, the transceiver module is also used to receive a first vehicle-to-external information exchange V2X message sent by the first communication device within the coverage range of the first communication device; and / or send a second vehicle-to-external information exchange V2X message to the first communication device; the second vehicle-to-external information exchange V2X message includes: current status information of the second communication device.

[0116] It should be noted that this device is a device corresponding to the method on the second communication device side mentioned above, and all implementation methods of the above method are applicable to the embodiments of this device and can achieve the same technical effects.

[0117] like Figure 3 As shown, an embodiment of the present invention further provides a first communication device, comprising: a first processor, and a first radio frequency unit electrically connected to the first processor; the first radio frequency unit comprises: a first transceiver module, configured to broadcast a separate radio frequency identification RFID control signaling through a public protocol interface; and receive a reflected signal fed back by a tag device, wherein the reflected signal is a reflection signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage area of ​​the first communication device to the tag device after receiving the RFID control signaling.

[0118] Furthermore, the first radio frequency unit also includes: a second transceiver module, used to send a first vehicle-to-the-world information exchange V2X message to a second communication device within the coverage area of ​​the first communication device.

[0119] In this embodiment, the first communication device supports dual-mode communication, such as communicating through a PC5 public protocol interface or a Uu interface, and has an integrated 920-950 MHz radio frequency identification receiving function.

[0120] like Figure 4 As shown, an embodiment of the present invention further provides a second communication device, comprising: a second processor, a second processor, and a second radio frequency unit electrically connected to the second processor; the second radio frequency unit comprises: a first transceiver module, configured to receive a separate radio frequency identification (RFID) control signaling broadcast by the first communication device through a public protocol interface; and send an excitation signal to a tag device according to the radio frequency identification (RFID) control signaling.

[0121] Furthermore, the second radio frequency unit also includes: a second transceiver module, used to receive a first vehicle-to-external information exchange V2X message sent by the first communication device within the coverage range of the first communication device; and / or send a second vehicle-to-external information exchange V2X message to the first communication device, and the second vehicle-to-external information exchange V2X message includes: current status information of the second communication device.

[0122] In this embodiment, the second communication device supports V2X vehicle-to-external information exchange and communication, and has an integrated 920-950 MHz radio frequency identification transmission function.

[0123] An embodiment of the present invention further provides a communication device comprising: a processor and a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0124] An embodiment of the present invention further provides a computer-readable storage medium comprising instructions, which, when executed on a computer, cause the computer to execute the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0125] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0126] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0127] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0128] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0129] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0130] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard drive, ROM, RAM, a magnetic disk, or an optical disk.

[0131] In addition, it should be noted that, in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it will be understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0132] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general-purpose device. Therefore, the purpose of the present invention can also be achieved simply by providing a program product containing program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but do not necessarily need to be performed in chronological order. Certain steps can be performed in parallel or independently of each other.

[0133] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A signal transmission method, characterized in that: Applied to a first communication device, the method includes: Broadcasting separate radio frequency identification (RFID) control signaling via a public protocol interface; Receive a reflection signal fed back by a tag device, where the reflection signal is a reflection signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage area of ​​the first communication device to the tag device after receiving an RFID control signal; After receiving the reflected signal fed back by the tag device, it also includes: broadcasting a confirmation message to the second communication device through a public protocol interface; receiving the tag-related information fed back by the tag device; the tag-related information is sent by the tag device after receiving the confirmation message forwarded by the second communication device; Send a first vehicle-to-everything (V2X) message to a second communication device within coverage of the first communication device.

2. The signal transmission method according to claim 1, wherein: After receiving the tag-related information fed back by the tag device, the method further includes: broadcasting request sequence information to the second communication device via a public protocol interface; receiving a first status request fed back by the tag device; the first status request is sent by the tag device after receiving the request sequence information forwarded by the second communication device; A control command for controlling the tag device to enter the first state is broadcast to the second communication device through a public protocol interface, and the second communication device sends the control command to the tag device.

3. The signal transmission method according to claim 1, wherein: Also includes: A second vehicle-to-external information exchange (V2X) message is received, which is broadcasted by the second communication device through a public protocol interface. The second vehicle-to-external information exchange (V2X) message includes current status information of the second communication device.

4. The signal transmission method according to claim 3, wherein: Also includes: The second vehicle sends a V2X message to the outside world and the reflected signal to the Internet of Things platform.

5. A signal transmission method, characterized in that: Applied to a second communication device, the method includes: receiving, via a public protocol interface, a separate radio frequency identification (RFID) control signaling broadcast by a first communication device; Sending an excitation signal to the tag device according to the radio frequency identification RFID control signaling; After sending an excitation signal to the tag device according to the radio frequency identification RFID control signaling, the method further includes: receiving a confirmation message broadcasted by the first communication device through the public protocol interface, and sending the confirmation message to the tag device; the confirmation message is broadcasted by the first communication device after receiving a status reply signal fed back by the tag device according to the excitation signal; A first vehicle-to-external information exchange (V2X) message sent by the first communication device is received within the coverage range of the first communication device.

6. The signal transmission method according to claim 5, wherein: After sending an excitation signal to the tag device according to the radio frequency identification RFID control signaling, the method further includes: receiving request sequence information broadcast by the first communication device through a public protocol interface; According to the request sequence information, a control command for controlling the tag device to enter the first state is sent to the tag device through a public protocol interface; the request sequence is broadcast by the first communication device after receiving the tag-related information fed back by the tag device according to the confirmation message.

7. The signal transmission method according to claim 5, wherein: Also includes: A second vehicle-to-everything (V2X) message is sent to the first communication device, where the second vehicle-to-everything (V2X) message includes current status information of the second communication device.

8. A signal transmission device, characterized in that: Applied to a first communication device, the apparatus includes: A transceiver module, used for broadcasting split radio frequency identification RFID control signaling through a public protocol interface; Receive a reflection signal fed back by a tag device, where the reflection signal is a reflection signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage area of ​​the first communication device to the tag device after receiving an RFID control signal; The transceiver module is also used for: broadcasting a confirmation message to the second communication device through a public protocol interface; receiving the tag-related information fed back by the tag device; the tag-related information is sent by the tag device after receiving the confirmation message forwarded by the second communication device; The transceiver module is further configured to send a first vehicle-to-the-world information exchange (V2X) message to a second communication device within the coverage area of ​​the first communication device.

9. A signal transmission device, characterized in that: Applied to a second communication device, the apparatus includes: A transceiver module, configured to receive a separate radio frequency identification (RFID) control signaling broadcast by a first communication device through a public protocol interface; and send an excitation signal to a tag device according to the radio frequency identification (RFID) control signaling; After sending an excitation signal to the tag device according to the radio frequency identification RFID control signaling, the method further includes: receiving a confirmation message broadcasted by the first communication device through the public protocol interface, and sending the confirmation message to the tag device; the confirmation message is broadcasted by the first communication device after receiving a status reply signal fed back by the tag device according to the excitation signal; The transceiver module is further configured to receive a first vehicle-to-external information exchange V2X message sent by the first communication device within the coverage area of ​​the first communication device.

10. A first communication device, characterized in that: include: a first processor, and a first radio frequency unit electrically connected to the first processor; The first radio frequency unit includes: a first transceiver module, configured to broadcast a separate radio frequency identification (RFID) control signaling via a public protocol interface; and receive a reflected signal fed back by a tag device, wherein the reflected signal is a reflection signal obtained by the tag device reflecting an excitation signal sent by a second communication device within the coverage area of ​​the first communication device to the tag device after receiving the RFID control signaling. The first transceiver module is further configured to: broadcasting a confirmation message to the second communication device through a public protocol interface; receiving the tag-related information fed back by the tag device; the tag-related information is sent by the tag device after receiving the confirmation message forwarded by the second communication device; The first radio frequency unit also includes: a second transceiver module, configured to send a first vehicle-to-the-world information exchange V2X message to a second communication device within the coverage of the first communication device.

11. A second communication device, characterized in that: include: a second processor, and a second radio frequency unit electrically connected to the second processor; The second radio frequency unit includes: a first transceiver module, configured to receive a separate radio frequency identification (RFID) control signaling broadcast by the first communication device through a public protocol interface; and send an excitation signal to the tag device according to the radio frequency identification (RFID) control signaling; After sending an excitation signal to the tag device according to the radio frequency identification RFID control signaling, the method further includes: receiving a confirmation message broadcasted by the first communication device through the public protocol interface, and sending the confirmation message to the tag device; the confirmation message is broadcasted by the first communication device after receiving a status reply signal fed back by the tag device according to the excitation signal; The second radio frequency unit also includes: a second transceiver module, used to receive a first vehicle-to-external information exchange V2X message sent by the first communication device within the coverage range of the first communication device.

12. The second communication device according to claim 11, characterized in that The second transceiver module is further configured to send a second vehicle-to-external information exchange V2X message to the first communication device, where the second vehicle-to-external information exchange V2X message includes current status information of the second communication device.

13. A communication device, characterized in that: include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 1 to 4 or the method according to any one of claims 5 to 7 is performed.

14. A computer-readable storage medium, characterized in that The invention further comprises storing instructions, which, when the instructions are executed on a computer, cause the computer to perform the method according to any one of claims 1 to 4 or the method according to any one of claims 5 to 7.

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