A seat belt device for an autonomous vehicle and an autonomous vehicle

Abstract

The utility model discloses an embodiment of a kind of safety belt device and unmanned vehicle of unmanned vehicle, the safety belt device is used in unmanned vehicle, including safety belt, lock tongue, lock catch, display structure and auxiliary control structure. Auxiliary control structure is set in lock tongue and / or lock catch, with the control module of unmanned vehicle and the display unit in lock tongue, lock catch communication connection, can according to the signal control of control module two display units enter display state or extinguish state, when in display state, two display units belonging to the same safety belt device respectively display first indication shape and second indication shape with corresponding relationship respectively through corresponding light-transmitting window. The safety belt device displays indication shape with corresponding relationship through lock tongue and lock catch visualization, improves the guidance and interactivity in the use process of safety belt, so that passenger can correctly use safety belt, improves the good experience of passenger use.

Description

Technical Field

[0001] This utility model relates to the field of vehicle safety technology, specifically to a seat belt device for an unmanned vehicle and an unmanned vehicle. Background Technology

[0002] With the development of autonomous driving technology, driverless taxis are gradually entering the commercial application stage. In driverless scenarios, vehicles no longer have drivers, resulting in the loss of the traditional passenger guidance and safety reminder functions performed by drivers. In this context, passengers must rely entirely on their own experience to fasten their seat belts. Current seat belt devices mostly use a mechanical latch and buckle structure, achieving a locking function through insertion to restrain the passenger's body and ensure passenger safety. However, there is a lack of necessary guidance marks between the latch and buckle, and the two can obstruct the view during their operation, making it difficult for passengers to locate and operate the belt, affecting efficiency and resulting in a poor experience. Especially in the rear seat area where multiple seats are arranged side by side, if the buckles of two adjacent seats are placed close together, passengers may mistakenly insert the latch of one seat into the buckle of the adjacent seat, further affecting the passenger's riding experience. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a seat belt device and an unmanned vehicle, which improves the guidance and interactivity during the use of seat belts, enabling passengers to use seat belts correctly and improving the passenger's user experience.

[0004] In a first aspect, embodiments of the present invention provide a seatbelt device for an unmanned vehicle, the seatbelt device comprising:

[0005] seat belt;

[0006] A locking tongue is provided on the seat belt, and the locking tongue is provided with a first light-transmitting window;

[0007] The buckle is equipped with a second light-transmitting window, and the seat belt is locked to the buckle via the locking tongue;

[0008] The display structure includes a first display unit and a second display unit. The first display unit is disposed inside the latch, and when the first display unit emits light, it displays a first indicator shape through the first light-transmitting window. The second display unit is disposed inside the latch, and when the second display unit emits light, it displays a second indicator shape through the second light-transmitting window.

[0009] An auxiliary control structure is disposed within the latch and / or the buckle. The auxiliary control structure is communicatively connected to the control module of the autonomous vehicle, the first display unit, and the second display unit. The auxiliary control structure controls the first display unit and the second display unit to enter a display state or an off state according to the signal from the control module.

[0010] The first indicator shape and the second indicator shape belonging to the same seat belt device have a corresponding relationship, and the first indicator shape belonging to different seat belt devices and the second indicator shape are distinguished from each other.

[0011] Optionally, the first indicator shape and the second indicator shape belonging to the same seat belt device are the same; or, the first indicator shape has an indicator arrow, and the second indicator shape has a mating groove corresponding to the indicator arrow.

[0012] Optionally, the first display unit and the second display unit belonging to the same seat belt device display the same display color, while the first display unit and the second display unit belonging to different seat belt devices display different colors.

[0013] Optionally, the first display unit and the second display unit are RGB LEDs.

[0014] Optionally, the auxiliary control structure includes:

[0015] A first auxiliary control unit is disposed inside the lock tongue, and the first auxiliary control unit is communicatively connected to the control module and the first display unit.

[0016] A second auxiliary control unit is disposed within the latch, and the second auxiliary control unit is communicatively connected to the control module and the second display unit.

[0017] The first auxiliary control unit and the second auxiliary control unit control the first display unit and the second display unit to enter the display state or the off state synchronously according to the signal of the control module.

[0018] Optionally, the display structure includes a first power supply and a second power supply. The first power supply is disposed within the latch and is electrically connected to the first display unit and the first auxiliary control unit. The second power supply is disposed within the latch and is electrically connected to the second display unit and the second auxiliary control unit.

[0019] Optionally, the latch includes a buckle end and an insertion end connected to each other. The buckle end includes a first receiving groove. The first display unit, the first auxiliary control unit, and the first power supply are integrated on the latch cover plate. The latch cover plate is connected to the buckle end and fastens to the first receiving groove to seal the first display unit, the first auxiliary control unit, and the first power supply in the first receiving groove.

[0020] Optionally, the latch includes:

[0021] A first outer shell and a second outer shell are fastened together to form a second receiving cavity with a top opening;

[0022] A latch receiver is disposed within the second receiving cavity, and the top end of the latch receiver covers the top opening. The top end of the latch receiver has a socket for inserting the latch and a release button.

[0023] A locking mechanism is provided in the second receiving cavity, which locks the bolt after the bolt is inserted into the socket.

[0024] The second display unit, the second auxiliary control unit, and the second power supply are disposed in the second receiving cavity, and the second light-transmitting window is disposed on the first outer shell.

[0025] Optionally, the seat belt device includes a sensing module disposed within the buckle. The sensing module is communicatively connected to the auxiliary control structure. When the auxiliary control structure receives a signal from the sensing module, it controls the first display unit and the second display unit to be turned off.

[0026] Secondly, this utility model embodiment also provides an unmanned vehicle, the unmanned vehicle including the seat belt device as described in the first aspect.

[0027] This utility model discloses a seatbelt device for use in autonomous vehicles, comprising a seatbelt, a latch, a buckle, a display structure, and an auxiliary control structure. The auxiliary control structure is disposed within the latch and / or buckle and is communicatively connected to the control module of the autonomous vehicle and the display units within the latch and buckle. It can control the two display units to enter a display state or an off state based on signals from the control module. In the display state, the two display units belonging to the same seatbelt device respectively display a first indicator shape and a second indicator shape with a corresponding relationship through corresponding light-transmitting windows. This seatbelt device enhances the guidance and interactivity during seatbelt use by visually displaying corresponding indicator shapes on the latch and buckle, enabling passengers to use the seatbelt correctly and improving the passenger experience. Attached Figure Description

[0028] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0029] Figure 1 This is an exploded structural diagram of the locking tongue in an embodiment of this utility model;

[0030] Figure 2 This is an exploded structural diagram of the latch in an embodiment of this utility model;

[0031] Figure 3 This is a schematic diagram of a first indicator shape and a second indicator shape belonging to the same seat belt device in an embodiment of this utility model;

[0032] Figure 4 This is a schematic diagram of another first indicator shape and second indicator shape belonging to the same seat belt device in an embodiment of this utility model;

[0033] Figure 5 This is a schematic diagram of a first indicator shape and a second indicator shape belonging to the same seat belt device in another embodiment of this utility model;

[0034] Figure 6 This is a structural schematic diagram of the seat belt device for the rear seat of an unmanned vehicle in an embodiment of this utility model.

[0035] Figure label:

[0036] 1-Lock tongue; 11-First light-transmitting window; 12-First display unit; 13-First indicator shape; 14-First auxiliary control unit; 15-First power supply; 16-Buckling end; 161-First receiving groove; 17-Insertion end; 18-Lock tongue cover plate; 2-Lock; 21-Second light-transmitting window; 22-Second display unit; 23-Second indicator shape; 24-Second auxiliary control unit; 25-Second power supply; 26-First housing; 27-Second housing; 28-Lock tongue receiver; 29-Fixing plate. Detailed Implementation

[0037] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0038] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0039] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0041] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0042] Figure 1 This is a schematic diagram of the locking tongue of the seat belt device in this embodiment. Figure 2 This is a schematic diagram of the buckle structure of the seat belt device in this embodiment. The seat belt device is used in autonomous vehicles to provide safety for passengers.

[0043] Specifically, the seat belt device includes a seat belt, a locking tongue 1, and a buckle 2. The locking tongue 1 is disposed on the seat belt, and the seat belt is locked to the buckle 2 via the locking tongue 1. The seat belt device also includes a display structure and an auxiliary control structure, such as... Figure 1 and Figure 2 As shown in the diagram, the display structure includes a first display unit 12 and a second display unit 22. The first display unit 12 is disposed within the latch 1, and the second display unit 22 is disposed within the latch 2. An auxiliary control structure is disposed within the latch 1 and / or the latch 2, and the auxiliary control structure is communicatively connected to the control module of the autonomous vehicle, the first display unit 12, and the second display unit 22. After the control module of the autonomous vehicle sends a signal, the auxiliary control structure controls the first display unit 12 and the second display unit 22 to enter the display state according to the signal, so as to prompt the passenger to use the seat belt device. At the same time, it can correctly guide the passenger to insert the latch 1 into the corresponding latch 2, thereby improving the convenience of using the seat belt device and the user experience.

[0044] In this embodiment, the latch 1 is provided with a first light-transmitting window 11, and the latch 2 is provided with a second light-transmitting window 21, such as... Figure 1 and Figure 2As shown. When the first display unit 12 emits light, it displays a first indicator shape 13 through the first light-transmitting window 11. When the second display unit 22 emits light, it displays a second indicator shape 23 through the second light-transmitting window 21. Preferably, the first light-transmitting window 11 is disposed on the outer surface of the latch 1 (i.e., the exposed side), and the second light-transmitting window 21 can be disposed on the side or top surface of the latch 2, thereby allowing passengers to quickly see the indicator shape with a specific color.

[0045] The first indicator shape 13 on the latch 1 and the second indicator shape 23 on the buckle 2, which belong to the same seat belt device, have a corresponding relationship. The corresponding relationship means that the pairing relationship can be clearly identified by the naked eye through common sense. When the passenger sees the first indicator shape 13 and the second indicator shape 23, he can quickly identify that the latch 1 and the buckle 2 belong to the same seat belt device and lock the latch 1 and the buckle 2 in sequence and correctly.

[0046] Furthermore, the first indicator shape 13 and the second indicator shape 23 belonging to different seat belt devices are distinguished. That is, there is no corresponding relationship between the first indicator shape 13 and the second indicator shape 23 belonging to different seat belt devices, which allows passengers to quickly distinguish the pairing relationship between the latch 1 and the buckle 2, so as to correctly fasten the seat belt device.

[0047] Figure 3 , Figure 4 , Figure 5 These are schematic diagrams of the first and second indicator shapes, respectively, belonging to the same seatbelt device. (Example) Figure 3 and Figure 4 As shown, the first indicator shape 13 has an indicator arrow, and the second indicator shape 23 has a mating groove that matches the shape of the indicator arrow. This allows the first indicator shape 13 and the second indicator shape 23 to indicate both the pairing relationship and the direction of engagement, enabling passengers to use the seatbelt device quickly and correctly, providing them with convenience and a good experience. Figure 3 As shown, the indicator arrow is a triangular arrowhead, and the mating groove is a triangular groove. The size and shape of the triangular arrowhead and the triangular groove are basically the same, thus providing a user-friendly indication of the pairing relationship between the latch 1 and the latch 2. For example... Figure 4 As shown, the indicator arrow is a square protrusion, and the mating groove is a square recess. The size and shape of the square protrusion and recess are basically the same, thus providing a user-friendly indication of the pairing relationship between the latch 1 and the buckle 2. The first indicator shape 13 and the second indicator shape 23, belonging to the same seatbelt device, are identical. For example... Figure 5 As shown, the first indicator shape 13 and the second indicator shape 23 are conventional arrow structures. The first indicator shape 13 and the second indicator shape 23 belonging to the same seatbelt device in this embodiment include, but are not limited to, those shown below. Figures 3-5 The shape of the indicator can be customized according to requirements. The first indicator shape 13 and the second indicator shape 23 belonging to the same seat belt device can clearly identify the matching relationship between the latch 1 and the corresponding buckle 2. They can be used to indicate the pairing relationship and the direction of engagement, enabling passengers to use the seat belt device quickly and correctly, providing them with convenience and a good experience.

[0048] The first display unit 12 and the second display unit 22 can each display a variety of distinctive colors, such as red, green, blue, and white. In this embodiment, when the first display unit 12 and the second display unit 22 of the same seatbelt device enter the display state, they simultaneously display the same color; however, the display colors differ between the first display unit 12 and the second display unit 22 belonging to different seatbelt devices. Therefore, passengers can not only identify the latch 1 and the corresponding buckle 2 by the correspondence of the indicated shapes, but also by the same display color, further improving the convenience and user experience of using the seatbelt device. In one embodiment, the first display unit 12 and the second display unit 22 are RGB LEDs, electrically connected to the auxiliary control structure.

[0049] In this embodiment, the auxiliary control structure includes a first auxiliary control unit 14 and a second auxiliary control unit 24. The first auxiliary control unit 14 is disposed within the latch 1, and the second auxiliary control unit 24 is disposed within the latch 2. Figure 1 and Figure 2 As shown. The first auxiliary control unit 14 is communicatively connected to the control module and the first display unit 12 of the autonomous vehicle, thereby allowing the control module to control the first display unit 12 to enter a display state or a non-display state via the first auxiliary control unit 14. The second auxiliary control unit 24 is communicatively connected to the control module and the second display unit 22 of the autonomous vehicle, thereby allowing the control module to control the second display unit 22 to enter a display state or a non-display state via the second auxiliary control unit 24. The first and second auxiliary control units 14, belonging to the same seatbelt device, respectively control the first and second display units 12 to synchronously enter a display state or a non-display state based on signals from the control module.

[0050] In this embodiment, the first auxiliary control unit 14 and the second auxiliary control unit 24 are connected to the control module of the autonomous vehicle via wireless communication. The first auxiliary control unit 14 and the first display unit 12 can be integrated together and installed in the latch 1, and the second auxiliary control unit 24 and the second display unit 22 can be integrated together and installed in the latch 2. The first display unit 12 and the second display unit 22 are controlled by the first auxiliary control unit 14 and the second auxiliary control unit 24 respectively, resulting in more precise control and lower power consumption.

[0051] Furthermore, the display structure also includes a first power supply 15 and a second power supply 25. The first power supply 15 is disposed within the latch 1, and the second power supply 25 is disposed within the latch 2. The first power supply 15 is electrically connected to the first display unit 12 and the first auxiliary control unit 14, and is used to supply power to the first display unit 12 and the first auxiliary control unit 14; the second power supply 25 is electrically connected to the second display unit 22 and the second auxiliary control unit 24, and is used to supply power to the second display unit 22 and the second auxiliary control unit 24.

[0052] like Figure 1 As shown, the latch 1 includes a buckle end 16 and an insertion end 17 connected to each other. The buckle end 16 connects to the seatbelt, specifically by having a through hole through which the seatbelt passes. The insertion end 17 is used to engage with the latch 2 for locking. A first light-transmitting window 11 is located on the outer surface of the buckle end 16. The buckle end 16 includes a first receiving groove, and a first display unit 12, a first auxiliary control unit 14, and a first power supply 15 are located in the first receiving groove 161. Preferably, the opening of the first receiving groove 161 is located on the inner side of the buckle end 16. Figure 1 The dashed line in the diagram illustrates the first receiving groove 161, which allows the outer surface of the buckle end 16 to be a single unit, improving the aesthetics of the seatbelt device. The latch 1 also includes a latch cover 18, which can be fastened to the first receiving groove via a snap and / or bolts. Optionally, the first auxiliary control unit 14, the first display unit 12, and the first power supply 15 can be initially fixed to the latch cover 18. When the latch cover 18 is fastened to the first receiving groove 161, the first display unit 12, the first auxiliary control unit 14, and the first power supply 15 are located within the first receiving groove 161. The position of the first display unit 12 corresponds to the position of the first light-transmitting window 11, allowing light emitted from the first display unit 12 to pass through the first light-transmitting window 11.

[0053] In one embodiment, the first light-transmitting window 11 can be partially light-transmitting, with the shape of the light-transmitting portion set as the first indicator shape 13, and the other portion set as a frosted surface or other opaque surface, thereby allowing the first display unit 12 to display the first indicator shape 13 through the first light-transmitting window 11 when it emits light. In another embodiment, the first light-transmitting window 11 can be entirely light-transmitting, thus requiring the first light-transmitting window 11 to have the same shape as the first indicator shape 13.

[0054] like Figure 2 As shown, the latch 2 includes a first housing 26, a second housing 27, a latch receiving member 28, and a locking mechanism. The first housing 26 and the second housing 27 are fastened together to form a second receiving cavity with a top opening. The latch receiving member 28 and the locking mechanism are disposed within the second receiving cavity. The second display unit 22, the second auxiliary control unit 24, and the second power supply 25 are disposed within the second receiving cavity and located between the latch receiving member 28 and the first housing 26. The top end of the latch receiving member 28 covers the top opening of the second receiving cavity, and the top end of the latch receiving member 28 has a socket for inserting the latch 1 and a release button. When the latch 1 is inserted into the latch 2, the locking mechanism locks the latch 1 to the latch 2; when the passenger presses the release button, the locking mechanism releases the latch 1, thereby causing the latch 1 to be pulled out of the latch 2.

[0055] The second auxiliary control unit 24 and the second display unit 22 can be integrated onto the fixing plate 29, and then the fixing plate 29 is fixed in the second receiving cavity by snap-fit ​​and / or bolts. After the second display unit 22 is fixed in the second receiving cavity, it corresponds to the position of the second light-transmitting window 21, thereby allowing the light emitted by the second display unit 22 to pass through the second light-transmitting window 21. Figure 2 The dashed line indicates the projected position of the fixing plate 29 corresponding to the first housing 26.

[0056] In one embodiment, the second light-transmitting window 21 can be partially light-transmitting, with the shape of the light-transmitting portion set as the second indicator shape 23, and the other portion set as a frosted surface or other opaque surface, thereby allowing the second display unit 22 to display the second indicator shape 23 through the second light-transmitting window 21 when it emits light. In another embodiment, the second light-transmitting window 21 can be entirely light-transmitting, thus requiring the second light-transmitting window 21 to have the same shape as the second indicator shape 23.

[0057] Preferably, the second light-transmitting window 21 is disposed on the first housing 26, and its area is relatively large, which can provide a more obvious prompt to the user. In addition, the second light-transmitting window 21 can also be disposed in other positions of the latch 2, such as the top surface of the latch 2 (the top of the latch tongue receiver 28).

[0058] Furthermore, the seatbelt device includes a sensing module housed within the buckle 2. The sensing module is communicatively connected to the auxiliary control structure. Upon receiving a signal from the sensing module, the auxiliary control structure controls the first display unit 12 and the second display unit 22 to be turned off. In this embodiment, the sensing module is communicatively connected to the second auxiliary control unit 24. The second auxiliary control unit 24 feeds back the collected signals to the control module, which then determines the state of the first display unit 12 and the second display unit 22. The sensing module can be a contact sensor, position sensor, infrared sensor, etc. In this embodiment, when the first display unit 12 and the second display unit 22 enter the display state, they can flash at different frequencies depending on the current state of the autonomous vehicle and other conditions. When the autonomous vehicle is in the passenger pick-up phase, the control module can control the first display unit 12 and the second display unit 22 to flash with a specified color and frequency. After the passenger fastens their seatbelt, the control module controls the first display unit 12 and the second display unit 22 to be turned off or to flash at a low frequency and low brightness. In the event of a collision or other special circumstances during passenger transport, the control module can control the first display unit 12 and the second display unit 22 to flash with a specified display color and another specified frequency until the passengers disembark and the flashing stops.

[0059] In this embodiment, the working logic of the seat belt device is as follows:

[0060] (1) When the driverless vehicle is picking up passengers, after receiving the signal after the door is opened, the control module of the driverless vehicle controls the display structure of the seat belt device of multiple passenger seats to display in different display colors and flash at frequency a; after receiving the signal after the door is closed and the signal after the seat belt device latch 1 and buckle 2 are engaged, the control module of the driverless vehicle controls the display structure to stop displaying and enter the off state or low power consumption state.

[0061] (2) When the driverless vehicle arrives at the passenger's destination and the passenger is disembarking, the driverless vehicle's control module determines that the vehicle has arrived at the station and prompts the passenger to get off. At the same time, it controls the display structure of the passenger seat's seat belt device to be constantly lit with different display colors and simultaneously prompts the passenger to unlock the seat belt. After receiving the signal that the door is closed, it controls the display structure to stop displaying and enter the off state or low power consumption state.

[0062] (3) After a high-speed (airbag ignition level collision) collision, the control module of the autonomous vehicle controls the display structure of the seat belt device to flash at frequency b in different colors until all passengers unfasten the buckle 2, detach from the seat, and exit the vehicle, at which point the display stops. The autonomous vehicle can determine the current situation based on its own system.

[0063] In addition, the seatbelt display can also be illuminated in conjunction with ambient lighting under special circumstances. For example, during special holidays, the control module can control the display to illuminate with different brightness and colors; based on passenger preferences, the control module can control the display to illuminate with different brightness and colors; or based on weather conditions, the control module can control the display to illuminate with different brightness and colors. It should be noted that the above personalized ambient lighting method is clearly different from the display method that prompts passengers to fasten or unfasten their seatbelts, in terms of brightness, color variety, and flashing frequency.

[0064] Figure 6 This is a schematic diagram illustrating the structure of a seatbelt device for the rear seats of an autonomous vehicle, as provided in this embodiment. Rear seats refer to seats in an autonomous vehicle located other than the driver's and front passenger seats, i.e., the second row, third row, or possibly more rows of seats. Figure 6 As shown, the rear seats are arranged with three passenger seats side by side, and each passenger seat is equipped with a seat belt. It should be noted that... Figure 6 This is just an illustration; the rear seats may have only two, four, or other passenger seats, with each passenger seat equipped with a set of seat belts.

[0065] The following description uses a rear row with three seats as an example: the indicator colors and shapes of the three seatbelt devices are differentiated. Furthermore, the indicator colors of the three seatbelt devices are set to blue, red, and yellow, respectively.

[0066] The seatbelt device of this embodiment is used in an autonomous vehicle and includes a seatbelt, a latch 1, a buckle 2, a display structure, and an auxiliary control structure. The auxiliary control structure is disposed within the latch 1 and / or the buckle 2 and is communicatively connected to the control module of the autonomous vehicle and the display units within the latch 1 and buckle 2. It can control the two display units to enter a display state or an off state according to signals from the control module of the autonomous vehicle. In the display state, the two display units belonging to the same seatbelt device respectively display a first indicator shape 13 and a second indicator shape 23 with corresponding relationships through corresponding light-transmitting windows. This seatbelt device improves the guidance and interactivity during seatbelt use by visually displaying corresponding indicator shapes on the latch 1 and buckle 2, enabling passengers to use the seatbelt correctly and improving the passenger's user experience.

[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A seatbelt device for an unmanned vehicle, characterized in that, The seat belt device includes: seat belt; A locking tongue (1) is provided on the seat belt, and the locking tongue (1) is provided with a first light-transmitting window (11); The buckle (2) is provided with a second light-transmitting window (21), and the safety belt is locked to the buckle (2) through the locking tongue (1); The display structure includes a first display unit (12) and a second display unit (22). The first display unit (12) is disposed inside the latch (1). When the first display unit (12) emits light, it displays a first indicator shape (13) through the first light-transmitting window (11). The second display unit (22) is disposed inside the latch (2). When the second display unit (22) emits light, it displays a second indicator shape (23) through the second light-transmitting window (21). An auxiliary control structure is provided in the latch (1) and / or the latch (2). The auxiliary control structure is communicatively connected to the control module of the unmanned vehicle, the first display unit (12) and the second display unit (22). The auxiliary control structure controls the first display unit (12) and the second display unit (22) to enter the display state or the off state according to the signal of the control module. The first indicator shape (13) and the second indicator shape (23) belonging to the same seat belt device have a corresponding relationship, and the first indicator shape (13) belonging to different seat belt devices are distinguished from each other and the second indicator shape (23) are distinguished from each other.

2. The seat belt device according to claim 1, characterized in that, The first indicator shape (13) and the second indicator shape (23) belonging to the same seat belt device are the same; or, the first indicator shape (13) has an indicator arrow and the second indicator shape (23) has a mating groove corresponding to the indicator arrow.

3. The seat belt device according to claim 1, characterized in that, The first display unit (12) and the second display unit (22) belonging to the same seat belt device display the same display color, while the first display unit (12) belonging to different seat belt devices and the second display unit (22) display different colors.

4. The seat belt device according to claim 1, characterized in that, The first display unit (12) and the second display unit (22) are RGB LED beads.

5. The seatbelt device according to any one of claims 1-4, characterized in that, The auxiliary control structure includes: A first auxiliary control unit (14) is disposed inside the latch (1), and the first auxiliary control unit (14) is communicatively connected to the control module and the first display unit (12); A second auxiliary control unit (24) is disposed inside the latch (2), and the second auxiliary control unit (24) is communicatively connected to the control module and the second display unit (22); The first auxiliary control unit (14) and the second auxiliary control unit (24) control the first display unit (12) and the second display unit (22) to enter the display state or the off state simultaneously according to the signal of the control module.

6. The seatbelt device according to claim 5, characterized in that, The display structure includes a first power supply (15) and a second power supply (25). The first power supply (15) is disposed in the latch (1) and is electrically connected to the first display unit (12) and the first auxiliary control unit (14). The second power supply (25) is disposed in the latch (2) and is electrically connected to the second display unit (22) and the second auxiliary control unit (24).

7. The seat belt device according to claim 6, characterized in that, The latch (1) includes a buckle end (16) and an insertion end (17) connected to each other. The buckle end (16) includes a first receiving groove (161). The first display unit (12), the first auxiliary control unit (14) and the first power supply (15) are integrated on the latch cover plate (18). The latch cover plate (18) is connected to the buckle end (16) and fastened to the first receiving groove (161) to seal the first display unit (12), the first auxiliary control unit (14) and the first power supply (15) in the first receiving groove (161).

8. The seat belt device according to claim 6, characterized in that, The latch (2) includes: A first outer shell (26) and a second outer shell (27) are fastened together to form a second receiving cavity with a top opening; A latch receiver (28) is disposed in the second receiving cavity, and the top end of the latch receiver (28) covers the top opening. The top end of the latch receiver (28) has a socket for the latch (1) to be inserted and a release button. A locking mechanism is provided in the second receiving cavity. After the locking tongue (1) is inserted into the socket, the locking mechanism locks the locking tongue (1). The second display unit (22), the second auxiliary control unit (24) and the second power supply (25) are disposed in the second receiving cavity, and the second light-transmitting window (21) is disposed on the first outer shell (26).

9. The seat belt device according to claim 1, characterized in that, The seat belt device includes a sensing module disposed in the buckle (2). The sensing module is communicatively connected to the auxiliary control structure. When the auxiliary control structure receives a signal from the sensing module, it controls the first display unit (12) and the second display unit (22) to be turned off.

10. An unmanned vehicle, characterized in that, The driverless vehicle includes a seatbelt device as described in any one of claims 1-9.

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