An ETC system integrating battery swap interaction and a battery swap interaction method

By setting up ETC devices at the vehicle end and battery swap station end in the ETC system, and using multiple communication protocols to establish an information interaction link between the vehicle and the battery swap station, the problem of high development costs of information interaction equipment and methods in the prior art is solved, and the problem of high development costs of information interaction equipment and methods is realized Stable information interaction and reduce production costs.

CN111862362BActive Publication Date: 2024-12-27ZHEJIANG GEELY HLDG GRP CO LTD +1
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Patent Information

Application Number
CN202010680060.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-07-15
Publication Date
2024-12-27
Estimated Expiration
2040-07-15

AI Technical Summary

Technical Problem

In the existing ETC system, there is an increase in development and production costs to realize information interaction between battery swap stations and vehicles, and there is a lack of effective communication equipment and methods.

Method used

By setting up ETC devices on the vehicle end and the battery swap station, communication connections are established with the vehicle gateway using Ethernet, CAN bus, in-vehicle Ethernet, and communication links are established through microwaves to realize information interaction between the vehicle and the battery swap station, including the main The control unit, the radio frequency unit, the information processing unit, the communication control unit and the storage unit are used to process and encrypt information, and maintain a point-to-point communication connection during the battery swap process.

Benefits of technology

It realizes stable information interaction between the vehicle and the battery swap station, reduces development and production costs, and is suitable for the needs of 24-hour unmanned duty and fully automatic vehicle battery swap.

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Abstract

The present invention relates to an ETC system with integrated battery swapping interaction and a battery swapping interaction method, wherein the ETC system comprises: a vehicle-side ETC device for sending and receiving information at the vehicle-side; an ETC device at the battery swapping station-side, for sending and receiving information at the battery swapping station-side; wherein the ETC device at the battery swapping station-side is connected to the control host of the battery swapping station via Ethernet; the vehicle-side ETC device is connected to the vehicle-mounted gateway via a CAN bus or an in-vehicle Ethernet; the vehicle-side ETC device and the ETC device at the battery swapping station-side establish a communication link via microwaves to realize information interaction between the vehicle and the battery swapping station. The present invention adds a communication link between the ETC system and the vehicle on the basis of the ETC system to realize information interaction between the vehicle and the battery swapping station, which can reduce the additional development of information interaction equipment and reduce development costs.
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Description

Technical Field

[0001] The present invention relates to the field of vehicle battery replacement, and in particular to an ETC system integrating battery replacement interaction and a battery replacement interaction method. Background Art

[0002] The Electronic Toll Collection (ETC) system uses a dedicated short-range communication between the on-board electronic tag (OBU) installed on the windshield of the vehicle and the microwave antenna on the ETC lane at the toll station, and uses computer networking technology to conduct back-end settlement processing with the bank, so that vehicles can pay highway or bridge fees without stopping at highway or bridge toll stations. Vehicles that use ETC lanes without an on-board device or an invalid on-board device are considered illegal vehicles, and image capture and recognition are implemented, and the traffic police department will handle the matter afterwards. In the application of highway tolls, ETC has become relatively mature.

[0003] At the vehicle entrance and exit of the battery swap station, especially for the battery swap station that can realize 24-hour unmanned operation and fully automatic vehicle battery swap, it is necessary to identify the vehicle when it enters to prepare for battery swap, write the battery swap data after the vehicle battery swap is completed, calculate the service fee, etc., that is, it is necessary to establish a communication connection between the battery swap station and the vehicle. Developing new communication equipment and methods will bring additional development and production costs. Considering the maturity and wide application of the existing ETC system, realizing information interaction between the battery swap station and the vehicle based on the existing ETC system is a preferred implementation method. Summary of the invention

[0004] The technical problem to be solved by the present invention is to realize information interaction between battery swap stations and vehicles based on the existing ETC system.

[0005] In order to solve the above technical problems, the present invention discloses an ETC system integrating battery swap interaction and a battery swap interaction method. The specific technical solution is as follows:

[0006] In a first aspect, the present invention discloses an ETC system integrating battery swapping interaction, the ETC system comprising:

[0007] The vehicle-side ETC device is used to send and receive information on the vehicle side;

[0008] The ETC device at the battery swap station is used to send and receive information at the battery swap station;

[0009] in,

[0010] The ETC device at the battery swap station is connected to the control host of the battery swap station through the in-station Ethernet to realize information interaction between the ETC device at the battery swap station and the battery swap station;

[0011] The vehicle-side ETC device is connected to the vehicle gateway through the CAN bus or the in-vehicle Ethernet to realize information interaction between the vehicle-side ETC device and the vehicle;

[0012] The vehicle-side ETC device and the battery swap station-side ETC device establish a communication link via microwaves to enable information exchange between the vehicle and the battery swap station.

[0013] Furthermore, the vehicle-side ETC device is provided with a main control unit and a radio frequency unit, the main control unit is electrically connected to the radio frequency unit, and the main control unit is a microprocessor for processing interactive information between the vehicle and the battery swap station.

[0014] Furthermore, the vehicle-side ETC device is provided with a first storage unit, which stores a unique identity of the vehicle-mounted ETC device. The unique identity is used to establish a point-to-point communication connection between the vehicle and the battery swap station. The first storage unit is connected to the main control unit via a bus.

[0015] Furthermore, the vehicle-side ETC device is provided with an information processing unit, which is used to encrypt or decrypt the interactive information in a preset manner, and the information processing unit is connected to the main control unit via a bus.

[0016] Furthermore, the vehicle-side ETC device is provided with a communication control unit, which is connected to the main control unit via a bus. The communication control unit is used to maintain a point-to-point communication connection between the vehicle and the battery swap station during the vehicle battery swap process, and to disconnect the point-to-point communication connection after the vehicle battery swap is completed.

[0017] Furthermore, the vehicle-side ETC device is provided with a first antenna transmitting and receiving unit, which is electrically connected to the radio frequency unit; the battery swap station-side ETC device is provided with a second antenna transmitting and receiving unit; the first antenna transmitting and receiving unit and the second antenna transmitting and receiving unit establish a short-range communication link through microwaves.

[0018] Furthermore, the vehicle-side ETC device is provided with a second storage unit, which is connected to the main control unit via a bus, and stores vehicle static information, including vehicle identification number, license plate number and vehicle model information, and the vehicle static information is used for vehicle identity identification.

[0019] Furthermore, the vehicle-side ETC device is provided with an in-vehicle communication unit, and the in-vehicle communication unit is connected to the main control unit via a bus; the in-vehicle communication unit is also communicatively connected to the vehicle gateway via a CAN bus or in-vehicle Ethernet, and the vehicle gateway is communicatively connected to the vehicle controller via a bus or in-vehicle Ethernet to forward battery replacement information and vehicle dynamic information, and the vehicle dynamic information includes battery pack coding information and battery power information, and the vehicle dynamic information is used for vehicle battery replacement operations.

[0020] Furthermore, the ETC device at the battery swap station is provided with an intra-station communication unit, and the intra-station communication unit is connected to the control host of the battery swap station via Ethernet to forward the battery swap information, the vehicle static information and / or the vehicle dynamic information.

[0021] In a second aspect, the present invention discloses a battery swapping interaction method, the method being implemented by an ETC system integrated with battery swapping interaction as described in the first aspect, the method comprising:

[0022] When the vehicle drives to a designated area of ​​a battery swap station, a communication link between the vehicle and the battery swap station is established based on an ETC system integrated with battery swap interaction, wherein the ETC system integrated with battery swap interaction includes a vehicle-side ETC device and a battery swap station-side ETC device;

[0023] The ETC system sends an inquiry signal to the vehicle, reads the static vehicle information of the vehicle and forwards the static vehicle information to the control host of the battery swap station for vehicle identification;

[0024] The ETC system obtains the battery swap information of the battery swap station and forwards the battery swap information to the vehicle;

[0025] The ETC system acquires vehicle dynamic information of the vehicle and forwards the vehicle dynamic information to the control host of the battery swap station to perform vehicle battery swap operations;

[0026] After the battery replacement of the vehicle is completed, the communication link between the vehicle and the battery replacement station is released.

[0027] By adopting the above technical solution, the ETC system with integrated battery swap interaction and the battery swap interaction method described in the present invention have the following beneficial effects: the present invention establishes a communication link between the vehicle-side ETC device and the vehicle-mounted gateway and adds a station-side ETC device to the battery swap station, thereby finally establishing a communication link between the vehicle and the battery swap station, and realizing stable information interaction during the battery swap process. The ETC system with integrated battery swap interaction and the battery swap interaction method provided by the present invention avoid the additional development of battery swap information interaction equipment and methods, and reduce the development and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of an ETC system integrating battery swapping interaction provided by an embodiment of the present invention;

[0030] Figure 2 It is a structural schematic diagram of a vehicle-side ETC device in an ETC system with integrated battery swapping interaction provided by an embodiment of the present invention;

[0031] Figure 3 It is a structural schematic diagram of another vehicle-side ETC device in an ETC system with integrated battery swapping interaction provided by an embodiment of the present invention;

[0032] Figure 4 It is a structural schematic diagram of another ETC system integrating battery swapping interaction provided by an embodiment of the present invention;

[0033] Figure 5 It is a flowchart of a battery swapping interaction method provided by an embodiment of the present invention;

[0034] In the figure, 110 is the vehicle-side ETC device, 120 is the battery swap station-side ETC device, 130 is the control host of the battery swap station, 140 is the vehicle-mounted gateway, 150 is the vehicle controller, 111 is the main control unit, 112 is the radio frequency unit, 113 is the first storage unit, 114 is the information processing unit, 115 is the communication control unit, 116 is the first antenna receiving and transmitting unit, 117 is the second storage unit, 118 is the in-vehicle communication unit, 121 is the second antenna receiving and transmitting unit, 122 is the station-side radio frequency unit, and 123 is the in-station communication unit. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0036] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0037] Figure 1 : is a schematic diagram of the structure of an ETC system integrating battery swapping interaction provided by an embodiment of the present invention, such as Figure 1 As shown, the ETC system may include:

[0038] The vehicle-side ETC device 110 is used to send and receive information on the vehicle side;

[0039] The ETC device 120 at the battery swap station is used to send and receive information at the battery swap station;

[0040] in,

[0041] The ETC device 120 at the battery swap station is installed at the battery swap station. The ETC device at the battery swap station is connected to the control host 130 of the battery swap station through the in-station Ethernet to realize the information interaction between the ETC device 120 at the battery swap station and the battery swap station. The ETC device at the battery swap station serves as an information sending and receiving device at the battery swap station during the information interaction between the vehicle and the battery swap station.

[0042] The vehicle-side ETC device 110 is installed on the vehicle side. The vehicle-side ETC device is connected to the vehicle gateway 140 through the CAN bus or the in-vehicle Ethernet to realize the information interaction between the vehicle-side ETC device 110 and the vehicle. The vehicle-side ETC device serves as an information sending and receiving device on the vehicle side during the information interaction between the vehicle and the battery swap station.

[0043] The vehicle-side ETC device 110 and the battery swap station-side ETC device 120 establish a communication link via microwaves to enable information exchange between the vehicle and the battery swap station.

[0044] In some possible implementations, such as Figure 2 As shown, the vehicle-side ETC device 110 in the ETC system with integrated battery swap interaction may be provided with:

[0045] A main control unit 111 and a radio frequency unit 112 , wherein the main control unit 111 is electrically connected to the radio frequency unit 112 , and the main control unit 111 is a microprocessor for processing interactive information between the vehicle and the battery swap station.

[0046] The first storage unit 113 stores the unique identity of the vehicle-mounted ETC device 110, wherein the unique identity is used to establish a point-to-point communication connection between the vehicle and the battery swap station. The first storage unit 113 is connected to the main control unit 111 via a bus.

[0047] The information processing unit 114 is used to modulate or demodulate, encrypt or decrypt the interactive information in a preset manner. The information processing unit 114 is connected to the main control unit 111 via a bus.

[0048] The communication control unit 115 is connected to the main control unit 111 via a bus. The communication control unit 115 may include a communication link establishing subunit, a communication link maintaining subunit and a communication link releasing subunit, which are used to maintain the point-to-point communication connection between the vehicle and the battery swap station during the vehicle battery swapping process, and disconnect the point-to-point communication connection after the vehicle battery swapping is completed.

[0049] The first antenna transmitting and receiving unit 116 is electrically connected to the radio frequency unit 112; the ETC device 120 at the battery swap station is provided with a second antenna transmitting and receiving unit 121; the first antenna transmitting and receiving unit 116 and the second antenna transmitting and receiving unit 121 establish a short-range communication link via microwaves.

[0050] The second storage unit 117 is connected to the main control unit 111 via a bus. The second storage unit 117 stores vehicle static information, including a vehicle identification number, a license plate number and vehicle model information. The vehicle static information is used for vehicle identification.

[0051] The in-vehicle communication unit 118 is connected to the main control unit 111 via a bus; the in-vehicle communication unit 118 is also connected to the vehicle gateway 140 via a CAN bus or an in-vehicle Ethernet, and the vehicle gateway is connected to the vehicle controller 150 via a CAN bus or an in-vehicle Ethernet to forward battery replacement information and vehicle dynamic information, wherein the vehicle dynamic information includes battery pack coding information and battery power information, and the vehicle dynamic information is used for vehicle battery replacement operations.

[0052] In some possible implementations, such as Figure 3 As shown, the connection mode of some units in the vehicle-side ETC device 110 in the ETC system with integrated battery swap interaction can be: the information processing unit 114 and the communication control unit 115 are integrated in the main control unit 111. The internal units of the vehicle-side ETC device 110 provided in the embodiment of the present invention may include but are not limited to the above units, the internal units may be integrated or merged, and the connection structure of the internal units is not limited to Figure 2 and Figure 3 As shown in , I will not repeat them here.

[0053] Preferably, the ETC device 120 at the battery swap station in the ETC system with integrated battery swap interaction may be provided with:

[0054] The second antenna transmitting and receiving unit 121, the first antenna transmitting and receiving unit 116 and the second antenna transmitting and receiving unit 121 establish a short-range communication connection through microwaves.

[0055] The station-end RF unit 122 is used to modulate the battery replacement information, the vehicle static information and / or the vehicle dynamic information. The station-end RF unit 122 is electrically connected to the second antenna transmitting and receiving unit 121.

[0056] The intra-station communication unit 123 is connected to the control host 130 of the battery swap station via Ethernet to forward the battery swap information, the vehicle static information and / or the vehicle dynamic information.

[0057] In some other possible implementations, such as Figure 4As shown, the ETC device 120 at the battery swap station is simplified as a microwave antenna, and is connected to the control host 130 of the battery swap station through an Ethernet interface. The vehicle-mounted gateway 140 is connected to the vehicle controller 150 such as the body control module (BCM), vehicle control unit (VCU), and electronic stability control system (ESC) of the vehicle through a bus. The BCM collects the status information of each functional module of the vehicle, the VCU collects the motor and battery status, the accelerator pedal signal, the brake pedal signal, the actuator and the sensor signal, and the ESC collects the vehicle's lateral swing information and longitudinal driving information, etc. On the one hand, in response to the collection instruction forwarded by the vehicle-mounted gateway 140, the status information of the corresponding controller is collected, and on the other hand, the status information of the corresponding controller is sent to the vehicle-mounted gateway 140, and sent to the battery swap station via the vehicle-end ETC device 110. Thus, information interaction between the vehicle and the battery swap station is realized.

[0058] Figure 5 It is a flowchart of a battery swapping interaction method provided by an embodiment of the present invention. This specification provides method operation steps as described in the embodiment or flowchart, but may include more or fewer operation steps based on conventional or non-creative labor. The order of steps listed in the embodiment is only one way of executing the steps among many orders, and does not represent the only order of execution. When the actual system or server product is executed, it can be executed in sequence or in parallel according to the method shown in the embodiment or the accompanying drawings (for example, a parallel processor or a multi-threaded processing environment). Specifically, Figure 5 As shown, the battery swapping interaction method is implemented by an ETC system integrated with battery swapping interaction, and the method may include:

[0059] S510: When the vehicle travels to the designated area of ​​the battery swap station, a communication link is established between the vehicle and the battery swap station based on the ETC system integrated with battery swap interaction, wherein the ETC system integrated with battery swap interaction includes a vehicle-side ETC device and a battery swap station-side ETC device.

[0060] Preferably, the ETC device at the battery swap station is connected to the control host of the battery swap station via the in-station Ethernet to realize information interaction between the ETC device at the battery swap station and the battery swap station;

[0061] The vehicle-side ETC device is connected to the vehicle gateway through the CAN bus or the in-vehicle Ethernet to realize information interaction between the vehicle-side ETC device and the vehicle;

[0062] The vehicle-side ETC device and the battery swap station-side ETC device establish a communication link via microwaves to enable information exchange between the vehicle and the battery swap station.

[0063] S520: The ETC system sends an inquiry signal to the vehicle, reads the vehicle static information of the vehicle and forwards the vehicle static information to the control host of the battery swap station for vehicle identity recognition.

[0064] It can be understood that, referring to the process and principle of the highway non-stop toll collection system, when a vehicle enters the lane of the battery swap station, the induction antenna activates the ground coil, which in turn activates the microwave antenna of the ETC device at the battery swap station, reads the information on the identification card, and transmits it to the control host of the battery swap station for identification and verification.

[0065] Preferably, the first storage unit of the vehicle-side ETC device stores a unique identity identifier of the vehicle-mounted ETC device, and a point-to-point communication connection is established between the vehicle and the battery swap station based on the unique identity identifier.

[0066] Preferably, the second storage unit of the vehicle-side ETC device stores vehicle static information, which includes vehicle identification number, license plate number and vehicle model information. The vehicle static information can be used by the control host of the battery swap station to identify and verify the vehicle identity.

[0067] Preferably, the information processing unit of the vehicle-side ETC device encrypts or decrypts the interactive information in a preset manner to improve communication security.

[0068] S530: The ETC system obtains the battery swap information of the battery swap station and forwards the battery swap information to the vehicle.

[0069] It is understandable that after the identity of the vehicle is verified at the battery swap station, it is necessary to obtain the vehicle battery pack coding information, battery power information, etc., so as to perform battery swap operations on the vehicle. The existing ETC system has no communication connection with the vehicle controller and cannot obtain the dynamic data of the vehicle. The ETC system with integrated battery swap interaction provided by the present invention increases the communication connection between the vehicle-side ETC device and the vehicle, and connects the vehicle-side ETC device to the vehicle gateway through the in-vehicle Ethernet or CAN bus, etc. The on-board gateway is connected to the vehicle's body control module (Body Control Module, BCM), new energy vehicle whole vehicle controller (Vehicle Control Unit, VCU), body electronic stability control system (Electronic Stability Controller, ESC) and other controllers through the bus or in-vehicle Ethernet, so that the vehicle controller can collect dynamic data information after receiving the battery swap command from the battery swap station.

[0070] S540: The ETC system obtains vehicle dynamic information of the vehicle, and forwards the vehicle dynamic information to the control host of the battery swap station to perform vehicle battery swap operations.

[0071] It can be understood that the dynamic data information collected by the vehicle controller after receiving the battery replacement command from the battery replacement station is forwarded to the control host of the battery replacement station through the on-board gateway, the vehicle-side ETC device, and the battery replacement station-side ETC device, so that the battery replacement station can select a suitable battery pack, use a robotic arm to control the vehicle, etc., and then perform battery replacement operations on the vehicle. The more information collected, the more comprehensive and accurate it is, and the more suitable it is for battery replacement stations that can realize fully automatic vehicle battery replacement and 24-hour unmanned operation.

[0072] S550: After the battery replacement of the vehicle is completed, releasing the communication link between the vehicle and the battery replacement station.

[0073] Preferably, before releasing the communication link, the battery replacement operation data such as the replaced battery pack coding data and battery power are written into the vehicle-side ETC device so that it can be read by the battery replacement station the next time the vehicle replaces the battery.

[0074] Preferably, before releasing the communication link, the service fee settled in the background is deducted, and the deduction information is sent to the vehicle terminal or the user's mobile terminal.

[0075] It should be noted that the sequence of the embodiments of the present invention described above is for description only and does not represent the advantages and disadvantages of the embodiments. The above describes specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0076] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, system and server embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0077] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ETC system integrating battery swapping interaction, characterized in that: The ETC system includes: The vehicle-side ETC device is used to send and receive information on the vehicle side; The ETC device at the battery swap station is used to send and receive information at the battery swap station; in, The ETC device at the battery swap station is connected to the control host of the battery swap station through the in-station Ethernet to realize information interaction between the ETC device at the battery swap station and the battery swap station; The vehicle-side ETC device is provided with a second storage unit, the second storage unit stores vehicle static information, the vehicle static information includes vehicle identification number, license plate number and vehicle model information, and the vehicle static information is used for vehicle identification; The vehicle-side ETC device is provided with an in-vehicle communication unit, which is connected to the vehicle-side gateway through a CAN bus or in-vehicle Ethernet to realize information interaction between the vehicle-side ETC device and the vehicle; the in-vehicle gateway is connected to the vehicle controller through a bus or in-vehicle Ethernet to forward battery replacement information and vehicle dynamic information, the vehicle dynamic information includes battery pack coding information and battery power information, and the vehicle dynamic information is used for vehicle battery replacement operations; The vehicle-side ETC device and the battery swap station-side ETC device establish a communication link via microwaves to enable information exchange between the vehicle and the battery swap station.

2. The ETC system integrated with battery swap interaction according to claim 1, characterized in that: The vehicle-side ETC device is provided with a main control unit and a radio frequency unit. The main control unit is electrically connected to the radio frequency unit. The main control unit is a microprocessor for processing interactive information between the vehicle and the battery swap station.

3. The ETC system integrated with battery swap interaction according to claim 2, characterized in that: The vehicle-side ETC device is provided with a first storage unit, which stores a unique identity of the vehicle-mounted ETC device. The unique identity is used to establish a point-to-point communication connection between the vehicle and the battery swap station. The first storage unit is connected to the main control unit via a bus.

4. The ETC system integrated with battery swap interaction according to claim 2, characterized in that: The vehicle-side ETC device is provided with an information processing unit, which is used to encrypt or decrypt the interactive information in a preset manner, and the information processing unit is connected to the main control unit via a bus.

5. The ETC system integrated with battery swap interaction according to claim 3, characterized in that: The vehicle-side ETC device is provided with a communication control unit, which is connected to the main control unit via a bus. The communication control unit is used to maintain a point-to-point communication connection between the vehicle and the battery swap station during the vehicle battery swap process, and to disconnect the point-to-point communication connection after the vehicle battery swap is completed.

6. The ETC system integrated with battery swap interaction according to claim 2, characterized in that: The vehicle-side ETC device is provided with a first antenna transmitting and receiving unit, which is electrically connected to the radio frequency unit; the battery swap station-side ETC device is provided with a second antenna transmitting and receiving unit; the first antenna transmitting and receiving unit and the second antenna transmitting and receiving unit establish a short-range communication link via microwaves.

7. The ETC system integrated with battery swap interaction according to claim 2, characterized in that: The second storage unit is connected to the main control unit via a bus.

8. The ETC system integrated with battery swap interaction according to claim 2, characterized in that: The in-vehicle communication unit is connected to the main control unit via a bus.

9. The ETC system integrated with battery swap interaction according to claim 1, characterized in that: The ETC device at the battery swap station is provided with an intra-station communication unit, and the intra-station communication unit is connected to the control host of the battery swap station via Ethernet to forward the battery swap information, the vehicle static information and / or the vehicle dynamic information.

10. A battery swapping interaction method, characterized in that: The method is implemented by an ETC system integrated with battery swapping interaction according to claim 1, and the method comprises: When the vehicle drives to a designated area of ​​a battery swap station, a communication link between the vehicle and the battery swap station is established based on an ETC system integrated with battery swap interaction, wherein the ETC system integrated with battery swap interaction includes a vehicle-side ETC device and a battery swap station-side ETC device; The ETC system sends an inquiry signal to the vehicle, reads the vehicle static information of the vehicle and forwards the vehicle static information to the control host of the battery swap station for vehicle identification; the vehicle static information includes vehicle identification number, license plate number and vehicle model information; The ETC system obtains the battery swap information of the battery swap station and forwards the battery swap information to the vehicle; The ETC system acquires vehicle dynamic information of the vehicle and forwards the vehicle dynamic information to the control host of the battery swap station to perform vehicle battery swap operations; the vehicle dynamic information includes battery pack coding information and battery power information; After the battery replacement of the vehicle is completed, the communication link between the vehicle and the battery replacement station is released.

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