System for managing a tractor-trailer and method thereof

Abstract

A system for managing a tractor-trailer and a method thereof are provided. The system includes a control server managing a location of a trailer, identification information of the trailer, and identification information of a tractor matched with the trailer with respect to each hub; the trailer authenticating the tractor by comparing the identification information of the tractor received from the control server with identification information received from the tractor, and releasing an electronic parking brake (EPB) when the authentication result for the tractor is correct; and the tractor authenticating the trailer by comparing the identification information of the trailer received from the control server with identification information received from the trailer, and coupling to the trailer when the authentication result for the trailer is correct.

Description

[0001] Cross Reference to Related Applications

[0002] This application claims the benefit of priority of Korean Patent Application No. 10-2020-0135369, filed on October 19, 2020, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference. TECHNICAL FIELD

[0003] The present disclosure relates to a technology of managing coupling between a tractor and a trailer in a hub-to-hub logistics transportation environment. BACKGROUND

[0004] Recently, an automatic transportation system between logistics hubs has been proposed, which can be eco-friendly and can automatically perform or provide logistics transportation between logistics hubs by using an automatically guided vehicle. Accordingly, the system targets green logistics and reduction of a transportation share rate of a freight vehicle, so that a congestion rate of a road can be reduced and a problem related to accessibility of rail transportation can be supplemented.

[0005] Such an automatic transportation system between logistics hubs includes a dedicated road in which a plurality of sensors are buried underground, an automatically guided vehicle that transports a container while traveling on the dedicated road, a vehicle that travels between the logistics hubs, on which the container is transported and loaded by the automatically guided vehicle, and a control tower that controls travel of the automatically guided vehicle and the vehicle.

[0006] In this case, the vehicle includes a trailer to move and load the container transported by the automatically guided vehicle, and a tractor coupled to a front surface or a front end of the trailer to carry the container. In addition, the trailer includes a frame having a spaced portion formed therein to allow the automatically guided vehicle on which the container is loaded to enter. The trailer further includes a wheel coupled to a lower portion of the frame, a lifting device provided at an upper portion of the frame to fixedly support the container, and a coupler provided at opposite end portions of the frame.

[0007] The automatic transportation system between logistics hubs does not authenticate the tractor when the tractor is coupled to the trailer, and does not manage information of the trailer to be transported by the tractor.

[0008] In addition, the automatic transportation system between logistics hubs does not perform or provide communication with the tractor and the trailer, and does not participate in release of an electronic parking brake (EPB) provided on the trailer.

[0009] Specifically, in the automatic transportation system between logistics hubs, the tractor does not perform or provide communication with the trailer, and the tractor and the trailer do not authenticate their counterparts. Accordingly, the tractor can transport another trailer, instead of the trailer designated to the tractor.

[0010] The matters described in the background technology are provided to facilitate explanation and can include matters other than the related art known to those of ordinary skill in the art. SUMMARY

[0011] The present disclosure is to solve the above problems occurring in the related art while maintaining the advantages achieved by the related art.

[0012] One aspect of the present disclosure provides a system for controlling a tractor-trailer and a method thereof. The system and method can transmit information about the trailer to the tractor, which has been authenticated by a control server. The system and method can transmit information about the tractor to the trailer. The system and method can allow the trailer to release an electronic parking brake (EPB) when authenticating the tractor as correct. The system and method can allow the tractor to be coupled to the trailer when authenticating the trailer as correct. Accordingly, the system and method can substantially prevent incorrect coupling between the tractor and the trailer.

[0013] The technical problems to be solved by the present invention are not limited to the above problems. Any other technical problems not mentioned herein will be clearly understood by those of ordinary skill in the art from the following description. In addition, it will be readily understood that the objects and features of the present disclosure can be achieved by the means claimed in the appended claims and combinations of the means.

[0014] According to one aspect of the present disclosure, a system for managing a tractor-trailer can include a control server for managing, with respect to each hub, a location of a trailer, identification information of the trailer, and identification information of a tractor matched with the trailer. The trailer can authenticate the tractor by comparing the identification information of the tractor received from the control server with identification information received from the tractor, and can release a parking brake when the authentication result of the tractor is correct. The tractor can authenticate the trailer by comparing the identification information of the trailer received from the control server with identification information received from the trailer. The tractor can be coupled to the trailer when the authentication result of the trailer is correct.

[0015] According to an embodiment of the present disclosure, the control server can transmit information of a trailer matched with the tractor to the tractor and transmit identification information of the tractor to the trailer when the tractor is a correctly registered vehicle.

[0016] According to an embodiment of the present disclosure, the tractor can be authenticated by transmitting identification information of the tractor to the control server.

[0017] According to an embodiment of the present disclosure, the tractor can tow the trailer upon receiving a release parking brake signal from the trailer.

[0018] According to an embodiment of the disclosure, the set state of the parking brake can be maintained when the trailer is not coupled to the tractor within a reference time after authenticating the tractor.

[0019] According to an embodiment of the disclosure, the tractor can include a coupling device coupled to the trailer. The tractor can further include a first communication device for transmitting identification information of the tractor to a control server and receiving identification information of the trailer from the control server. The tractor can further include a second communication device for transmitting the identification information of the tractor to the trailer, receiving the identification information of the trailer from the trailer, and receiving a parking brake release signal from the trailer. The tractor can further include a controller for transmitting the identification information of the tractor to the control server to authenticate the tractor. The controller can further authenticate the trailer by comparing the identification information of the trailer received from the control server with the identification information received from the trailer. The controller can further control the coupling device to be coupled to the trailer when the authentication result of the trailer is correct.

[0020] According to an embodiment of the disclosure, the trailer can include a parking brake to set or release a locked state of the trailer. The trailer can further include a first communication device for receiving identification information of the trailer from a control server. The trailer can further include a second communication device for transmitting the identification information of the trailer to a tractor and receiving identification information of the tractor from the tractor. The trailer can further include a controller for authenticating the tractor by comparing the identification information of the tractor received from the control server with the identification information received from the tractor. The controller can further release the parking brake when the authentication result of the tractor is correct.

[0021] According to an embodiment of the disclosure, the controller can maintain the set state of the parking brake when the trailer is not coupled to the tractor within a reference time after authenticating the tractor.

[0022] According to an embodiment of the disclosure, the tractor can be an autonomous vehicle.

[0023] According to another aspect of the disclosure, a method for controlling a tractor-trailer can include authenticating, by a tractor, a trailer by comparing identification information of the trailer received from a control server with identification information received from the trailer. The method can further include allowing the tractor to be coupled to the trailer. The method can further include authenticating, by the trailer, the tractor by comparing identification information of the tractor received from the control server with identification information received from the tractor. The method can further include releasing, by the trailer, a parking brake.

[0024] According to an embodiment of the disclosure, the method can include transmitting, by the tractor, identification information of the tractor to the control server and receiving, by the tractor, identification information of the trailer from the control server.

[0025] According to an embodiment of the disclosure, the method can include releasing, by the trailer, the parking brake when the authentication of the tractor is correct.

[0026] According to an embodiment of the disclosure, the method can further include maintaining, by the trailer, a set state of the parking brake when the trailer is not coupled to the tractor within a reference time after the authentication of the tractor.

[0027] According to another aspect of the disclosure, a method for managing a tractor-trailer can include receiving, by a trailer, identification information about a tractor from a control server. The method can further include receiving, by the trailer, the identification information about the tractor from the tractor. The method can further include authenticating, by the trailer, the tractor by comparing the identification information about the tractor received from the control server with the identification information received from the tractor. The method can further include releasing, by the trailer, a parking brake when the authentication of the tractor is correct, and notifying, by the trailer, the tractor that the parking brake is released. BRIEF DESCRIPTION OF DRAWINGS

[0028] The above and other objects, features and advantages of the disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0029] Figure 1 FIG. 1 is a block diagram illustrating a configuration of a system for managing a tractor-trailer according to an embodiment of the disclosure;

[0030] Figure 2 FIG. 2 is a view illustrating a configuration of a tractor set in the system for managing a tractor-trailer according to an embodiment of the disclosure;

[0031] Figure 3 FIG. 3 is a view illustrating a configuration of a trailer set in the system for managing a tractor-trailer according to an embodiment of the disclosure; and

[0032] Figure 4 FIG. 4 is a flowchart illustrating a method for managing a tractor-trailer according to an embodiment of the disclosure. DETAILED DESCRIPTION

[0033] Hereinafter, some embodiments of the disclosure will be described in detail with reference to the accompanying drawings. In adding reference numerals to parts of each drawing, it should be noted that the same or equivalent parts are denoted by the same reference numerals even though they are shown on different drawings. Also, in describing embodiments of the disclosure, a detailed description of known features or functions incorporated herein has been omitted for the sake of clarity.

[0034] Also, in the following description of components according to embodiments of the disclosure, the terms "first", "second", "A", "B", "(a)" and "(b)" can be used. These terms are used only to distinguish one component from another component, and the terms do not limit the nature, order or sequence of the components. Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosure relates. Terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art. Unless specifically defined otherwise in the application, these terms should not be interpreted to have ideal or overly formal meanings. When components, devices, elements, etc. of the disclosure are described as having a purpose or performing an operation, function, etc., it should be considered that the components, devices, or elements are "configured to" fulfill the purpose or perform the operation or function in this document.

[0035] Figure 1 is a block diagram illustrating a configuration of a system for managing a tractor-trailer according to an embodiment of the disclosure.

[0036] As Figure 1 shown, according to an embodiment of the disclosure, a system for managing a tractor-trailer can include a control server 100, a tractor 200, and a trailer 300.

[0037] Regarding the above components, the control server 100 is a device that mediates coupling between the tractor 200 and the trailer 300, and can communicate with or provide communication with the tractor 200 and the trailer 300 through various communication schemes.

[0038] The control server 100 can manage location with respect to each of a plurality of hubs and identification (ID) information about the trailer, and can manage identification information of the tractor matched with the trailer. In this case, the hub can refer to a place where a plurality of trailers are positioned.

[0039] The control server 100 can manage the trailer matched with the tractor through a database (DB) 110.

[0040] When receiving identification information of the tractor 200, the control server 100 can perform a process of determining whether the tractor 200 is a previously registered vehicle. In this case, when the tractor 200 is a registered vehicle, the control server 100 can transmit information (for example, location information or identification information of the trailer 300 in the hub) of the trailer 300 matched with the tractor 200 to the tractor 200, and can transmit identification information about the tractor 200 to the trailer 300.

[0041] The tractor 200 can be implemented with an autonomous driving vehicle, and can transport the trailer between hubs.

[0042] The tractor 200 can be authenticated by transmitting identification information thereon to the control server 100, and the tractor 200 can authenticate the trailer 300 based on information about the trailer 300 received from the control server 100 and identification information received from the trailer 300.

[0043] When the authentication result of the trailer 300 is correct, the tractor 200 can be coupled to the trailer 300. In this case, the tractor 200 can transmit the authentication result to the control server 100.

[0044] The trailer 300 is a vehicle towed by the tractor 200, and can load various cargos thereon through a container.

[0045] The trailer 300 can authenticate the tractor 200 based on identification information about the tractor 200 received from the control server 100 and identification information received from the tractor 200.

[0046] When the authentication result of the tractor 200 is correct, the trailer 300 can release an electronic parking brake (EPB), and can transmit an EPB release signal indicating that the EPB is released to the tractor 200. In this case, the trailer 300 can release the EPB after further determining a coupling state with the tractor 200. For example, when the trailer 300 is not coupled to the tractor 200 within a reference time (e.g., five minutes) after authenticating the tractor 200, the trailer 300 can maintain a set state of the EPB. To this end, the trailer 300 can further include a coupling detection sensor (not shown).

[0047] In this case, the trailer 300 can transmit the authentication result to the control server 100. As a reference, the release state of the EPB can refer to a state in which the trailer 300 is movable, and the set state of the EPB can refer to a state in which the trailer 300 is fixed.

[0048] Figure 2 FIG. 1 is a view illustrating a configuration of a tractor according to an embodiment of the disclosure.

[0049] As Figure 2As illustrated, according to an embodiment of the disclosure, the tractor 200 provided in the system for managing a tractor-trailer can include a memory 210, a coupling device 220, a first communication device 230, a second communication device 240, and a controller 250. In this case, according to an embodiment of the disclosure, according to a manufacturing method of the tractor 200 provided in the system for managing a tractor-trailer, the components can be combined together or with each other to be implemented in one form, or some components can be omitted.

[0050] As for the above components, the memory 210 can store various logics, various algorithms, and various programs required in the following processes. The tractor 200 can be allowed to be authenticated by transmitting identification information of the tractor 200 to the control server 100. The tractor 200 can be allowed to authenticate the trailer 300 based on information about the trailer 300 received from the control server 100 and identification information received from the trailer 300. When the authentication result of the trailer 300 is correct, the tractor 200 can be allowed to be coupled to the trailer 300.

[0051] The memory 210 can include at least one storage medium of a flash memory type, a hard disk type, a micro type, a card type (for example, a secure digital (SD) card or an extreme digital card), a random access memory (RAM), a static RAM (SRAM), a read-only memory (ROM), a programmable ROM (PROM), an electrically erasable and programmable ROM (EEPROM), a magnetic RAM (MRAM), a magnetic disk type memory, or an optical disk type memory.

[0052] The coupling device 220 can be coupled to the trailer 300 under the control of the controller 250.

[0053] The first communication device 230 can transmit identification information about the tractor 200 to the control server 100, and can receive information about the trailer 300 from the control server 100. In addition, the first communication device 230 can transmit an authentication result of the trailer 300 to the control server 100.

[0054] The first communication device 230 is a module that provides a communication interface with the control server 100, and can include a mobile communication module and a wireless Internet module.

[0055] The mobile communication module can communicate with the control server 100 through a mobile communication network constructed according to a communication scheme (e.g., Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), Code Division Multiple Access 2000 (CDMA2000), Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (EV-DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), or Long Term Evolution Advanced (LTE-A)).

[0056] The wireless Internet module is a module for wireless Internet access, and can communicate with or provide communication with the control server 100 through Wireless LAN (WLAN), Wireless Fidelity (Wi-Fi), Wireless Fidelity Direct (Wi-Fi Direct), Digital Living Network Alliance (DLNA), Wireless Broadband (WiBro), World Interoperability for Microwave Access (WiMAX), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), or Long Term Evolution Advanced (LTE-A).

[0057] The second communication device 240 can transmit identification information about the tractor 200 to the trailer 300, and can receive identification information about the trailer 300 from the trailer 300. In addition, the second communication device 240 receives an EPB release signal from the trailer 300.

[0058] The second communication device 240 is a module that provides a communication interface with the trailer 300, and can include a short-range communication module.

[0059] The short-range communication module can communicate with or provide communication with the trailer 300 through at least one or more of a plurality of technologies such as Bluetooth TM , Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), or Wireless Universal Serial Bus (USB).

[0060] The controller 250 can perform overall control so that the components normally perform the respective functions. In addition, the controller 250 can be implemented in the form of hardware or software, and can be implemented in the form of a combination of hardware and software. In one embodiment, the controller 250 can be implemented with a microprocessor, but the present disclosure is not limited thereto.

[0061] Specifically, the controller 250 can perform various control operations in the following processes. By transmitting identification information about the tractor 200 to the control server 100, it can be possible to allow authentication of the tractor 200. It can be possible for the tractor 200 to authenticate the trailer 300 based on information about the trailer 300 received from the control server 100 and identification information received from the trailer 300. When the authentication result of the trailer 300 is correct, it can be possible for the tractor 200 to be coupled to the trailer 300.

[0062] When the trailer 300 is authenticated as correct, the controller 250 can control the coupling device 220 to be coupled to the trailer 300.

[0063] Figure 3 is a view illustrating a configuration of a trailer provided in a system for managing tractor-trailers according to an embodiment of the disclosure.

[0064] As Figure 3 indicated, according to an embodiment of the disclosure, the trailer 300 provided in the system for managing tractor-trailers can include a memory 310, an EPB 320, a first communication device 330, a second communication device 340, and a controller 350. In this case, according to an embodiment of the disclosure, depending on the manufacturing method of the trailer 300 provided in the system for managing tractor-trailers, the components can be combined together or with each other to be implemented in one form, or some components can be omitted.

[0065] As for the components, the memory 310 can store various logics, various algorithms, and various programs required in the following processes. The tractor 200 is authenticated based on identification information about the tractor 200 received from the control server 100 and identification information received from the tractor 200. When the authentication result of the tractor 200 is correct, the EPB 320 is released. An EPB release signal indicating that the EPB 320 is released is transmitted to the tractor 200. When the tractor 200 is not coupled within a reference time after the tractor 200 is authenticated, the set state of the EPB 320 is maintained.

[0066] The memory 310 can include various types of storage media identical to those of the memory 210 as Figure 2 indicated.

[0067] The EPB 320 can set or release the lock state of the trailer 300 under the control of the controller 250.

[0068] The first communication device 330 can receive identification information about the tractor 200 from the control server 100, and can transmit an authentication result for the tractor 200 to the control server 100.

[0069] The first communication device 330 is a module that provides a communication interface with the control server 100, and can include a mobile communication module and a wireless Internet module. The first communication device 330 is the same as the first communication device 230 illustrated in FIG. 2. Figure 2 The second communication device 340 is the same as the second communication device 240 illustrated in FIG. 2.

[0070] The second communication device 340 can transmit identification information about the trailer 300 to the tractor 200, and can receive identification information about the tractor 200 from the tractor 200.

[0071] The second communication device 340 is a module that provides a communication interface with the tractor 200, and can include a short-range communication module. The second communication device 340 is the same as the second communication device 240 illustrated in FIG. 2. Figure 2 The second communication device 340 is the same as the second communication device 240 illustrated in FIG. 2.

[0072] The controller 350 can perform overall control so that the respective components normally perform the corresponding functions. In addition, the controller 350 can be implemented in the form of hardware or software, and can be implemented in the form of a combination of hardware and software. In one embodiment, the controller 350 can be implemented with a microprocessor, but the present disclosure is not limited thereto.

[0073] Specifically, the controller 350 can perform various control operations required in the following processes. The tractor 200 can be authenticated based on the identification information about the tractor 200 received from the control server 100 and the identification information received from the tractor 200. When the authentication result of the tractor 200 is correct, the EPB 320 can be released. An EPB release signal indicating that the EPB 320 is released can be transmitted to the tractor 200. When the tractor 200 is not coupled within a reference time after the tractor 200 is authenticated, the set state of the EPB 320 can be maintained.

[0074] When the tractor 200 is authenticated as correct, the controller 350 can control the EPB 320 to release the locked state.

[0075] Figure 4 is a flowchart illustrating a method for managing a tractor-trailer according to an embodiment of the present disclosure, in which the tractor 200 can be referred to as "the controller 250" and the trailer 300 can be referred to as "the controller 350."

[0076] First, the tractor 200 transmits identification information thereon to the control server 100 (401).

[0077] Then, the control server 100 authenticates the tractor 200 based on the identification information of each tractor registered in the DB 110 (402). In this case, when the authentication of the tractor 200 fails, the control server 100 terminates communication with the tractor 200.

[0078] When the result of the authentication of the tractor 200 in 402 is correct, the control server 100 transmits information of the trailer 300 matched with the tractor 200 recorded in the DB 110 to the tractor 200 (403).

[0079] Further, the control server 100 transmits the identification information about the tractor 200 to the trailer 300 (404).

[0080] Thereafter, the tractor 200 transmits the identification information thereon to the trailer 300 (405).

[0081] Then, the trailer 300 can authenticate the tractor 200 by comparing the identification information of the tractor 200 received from the control server 100 with the identification information received from the tractor 200 (406). In this case, when the authentication of the tractor 200 fails, the trailer 300 terminates the subsequent processing.

[0082] When the result of the authentication of the tractor 200 in 406 is correct, the trailer 300 transmits the identification information thereon to the tractor 200 (407). In this case, the trailer 300 can transmit the identification information thereon to the tractor 200 before authenticating the tractor 200.

[0083] Then, the tractor 200 can authenticate the trailer 300 by comparing the identification information about the trailer 300 received from the control server 100 with the identification information received from the trailer 300 (408). In this case, when the authentication of the trailer 300 fails, the tractor 200 terminates the following processing.

[0084] When the result of the authentication of the trailer 300 in 408 is correct, the tractor 200 can perform coupling to the trailer 300 (409).

[0085] When the coupling is completed as described above, the trailer 300 releases the EPB 320 (410). When the coupling is not completed, the trailer 300 maintains the set state of the EPB 320. In this case, the trailer 300 can recognize the completion of the coupling through the coupling completion signal received from the tractor 200, or can recognize the completion of the coupling by sensing the coupling state through a sensor.

[0086] When the EPB 320 is completely released in 410, the trailer 300 transmits an EPB release signal to the tractor 200 (411). Then, the tractor 200 can tow the trailer 300.

[0087] As described above, according to embodiments of the disclosure, in a system for controlling a tractor-trailer and a method thereof, information about the trailer can be transmitted to the tractor authenticated as correct by the control server, information about the tractor can be transmitted to the trailer, the trailer can release the EPB when the tractor is authenticated as correct, and the tractor can be coupled to the trailer when the trailer is determined to be correct. Accordingly, the system and method can substantially prevent incorrect coupling between the tractor and the trailer.

[0088] As described above, according to embodiments of the disclosure, in a system for controlling a tractor-trailer and a method thereof, since information is exchanged based on encrypted communication between the control server, the tractor, and the trailer, it is very difficult to counterfeit information.

[0089] In the foregoing, although the disclosure has been described with reference to specific embodiments and drawings, the disclosure is not limited thereto. The disclosure can be variously modified and changed by those of ordinary skill in the art to which the disclosure pertains without departing from the spirit and scope of the disclosure as claimed in the appended claims. The controllers of the tractor and the trailer and the first communication device and the second communication device can be respectively identified as "first" and "second", "tractor" and "trailer", etc., to distinguish separate tractor and trailer components, which are otherwise given the same or similar names in this document.

[0090] Accordingly, embodiments of the disclosure are not intended to limit the technical spirit of the disclosure, but to provide embodiments of the disclosure only for illustrative purposes. The scope of protection of the disclosure should be interpreted by the appended claims, and all equivalents thereof should be interpreted as included in the scope of the disclosure.

Claims

1. A system for managing a tractor-trailer, the system comprising: a control server configured to manage, with respect to each hub, a position of a trailer, identification information of the trailer, and identification information of a tractor matching the trailer; the trailer configured to authenticate the tractor by comparing the identification information of the tractor received from the control server with identification information received from the tractor, and configured to release a parking brake when an authentication result of the tractor is correct and the tractor is completed coupling with the trailer; and the tractor configured to authenticate the trailer by comparing the identification information of the trailer received from the control server with identification information received from the trailer, and configured to couple to the trailer when an authentication result of the trailer is correct. the control server is configured to:

2. The system of claim 1, wherein, send information of a trailer matching the tractor to the tractor when the tractor is a correctly registered vehicle, and send identification information of the tractor to the trailer. authenticate the tractor by sending the identification information of the tractor to the control server.

3. The system of claim 1, wherein, the tractor to tow the trailer upon receiving a parking brake release signal from the trailer.

4. The system of claim 1, wherein, the trailer to maintain a set state of the parking brake when the trailer is not coupled to the tractor within a reference time after authenticating the tractor.

5. The system of claim 1, wherein, the tractor comprises:

6. The system of claim 1, wherein, a coupling device coupled to the trailer; a first communication device configured to send identification information of the tractor to the control server, and to receive identification information of the trailer from the control server; a second communication device configured to send the identification information of the tractor to the trailer, configured to receive the identification information of the trailer from the trailer, and configured to receive a parking brake release signal from the trailer; and a controller configured to send the identification information of the tractor to the control server to authenticate the tractor, configured to authenticate the trailer by comparing the identification information of the trailer received from the control server with the identification information received from the trailer, and configured to control the coupling device to couple to the trailer when an authentication result of the trailer is correct. the trailer comprises:

7. The system of claim 1, wherein, the parking brake configured to set or release a locking state of the trailer; a first communication device configured to receive identification information of the tractor from the control server; a second communication device configured to send identification information of the trailer to the tractor, and configured to receive identification information of the tractor from the tractor; and a controller configured to authenticate the tractor by comparing the identification information of the tractor received from the control server with the identification information received from the tractor, and configured to release the parking brake when the authentication result of the tractor is correct. ​ 8. The system of claim 7, wherein, The controller is configured to maintain a set state of the parking brake when the trailer is not coupled to the tractor within a reference time after authentication of the tractor.

9. The system of claim 1, wherein, The tractor is an autonomous vehicle.

10. A method for controlling a tractor-trailer, the method comprising: authenticating, by the tractor, the trailer by comparing identification information of the trailer received from a control server with identification information received from the trailer; coupling, by the tractor, to the trailer when the result of the authentication of the trailer is correct; authenticating, by the trailer, the tractor by comparing identification information of the tractor received from the control server with identification information received from the tractor; and releasing, by the trailer, a parking brake when the result of the authentication of the tractor is correct and the tractor is coupled to the trailer.

11. The method of claim 10, wherein, The authenticating the trailer comprises: sending, by the tractor, identification information of the tractor to the control server; and receiving, by the tractor, identification information of the trailer from the control server.

12. The method of claim 10, wherein, The releasing, by the trailer, the parking brake comprises: notifying, by the trailer, the tractor that the parking brake is released.

13. The method of claim 10, further comprising: maintaining, by the trailer, a set state of the parking brake when the trailer is not coupled to the tractor within a reference time after authentication of the tractor.

14. A method for managing a tractor-trailer, the method comprising: receiving, by a trailer, identification information of a tractor from a control server; receiving, by the trailer, identification information of the tractor from the tractor; authenticating, by the trailer, the tractor by comparing the identification information of the tractor received from the control server with the identification information received from the tractor; releasing, by the trailer, a parking brake when the result of the authentication of the tractor is correct and the tractor is coupled to the trailer; and notifying, by the trailer, the tractor that the parking brake is released; wherein the tractor is coupled to the trailer when the result of the authentication of the trailer is correct.

15. The method of claim 14, further comprising: maintaining, by the trailer, a set state of the parking brake when the trailer is not coupled to the tractor within a reference time after authentication of the tractor.

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