Stop board

Abstract

The utility model discloses a stop board which comprises a base provided with an installation cavity, and a display area used for displaying contact information is arranged on the outer wall face of the base. The main control board is mounted in the mounting cavity; the communication module is installed on the main control board, and the communication module is used for being in communication connection with an automobile machine system of the automobile and a mobile terminal so that the mobile terminal can control the automobile to be locked or unlocked through the communication module; and the signal enhancement antenna is arranged on the main control board and is used for enhancing the signals transmitted and received by the communication module. According to the technical scheme of the utility model, the signal enhancement antenna can transmit and amplify the signal transmitted and received by the communication module, so that the communication signal is greatly enhanced, and the signal transmitted and / or received by the communication module can interact with an external vehicle or accessory, thereby ensuring that the stop board can correctly identify the vehicle signal, and improving the safety of the vehicle. Therefore, the control effect on the automobile is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of parking plate, especially a parking plate. BACKGROUND

[0002] In the related art, the communication element installed in the parking plate is used to receive and transmit the frequency signal of the vehicle system, so that the user can operate the key function of the vehicle system through the parking plate. However, the communication element of the existing parking plate is usually placed inside the parking plate, and the signal of the communication element is easily disturbed. Since the communication element is disturbed to a high degree, the receiving and transmitting signal performance of the communication element is reduced, so that the parking plate cannot accurately identify the vehicle signal, which easily causes the vehicle signal receiving failure, so that the normal key function requirement cannot be met. SUMMARY

[0003] The main purpose of the utility model is to provide a parking plate, which aims to solve the technical problem of how to improve the signal transmission effect between the parking plate and the automobile.

[0004] To achieve the above purpose, the utility model provides a parking plate, which comprises:

[0005] A base is provided with a mounting cavity, and an outer wall surface of the base is provided with a display area for displaying a contact method;

[0006] A main control board is installed in the mounting cavity;

[0007] A communication module is installed on the main control board, and the communication module is used to communicate with the vehicle system and the mobile terminal of the automobile, so that the mobile terminal can control the locking or unlocking of the automobile through the communication module;

[0008] A signal enhancement antenna is installed on the main control board to enhance the signal received and transmitted by the communication module.

[0009] Optionally, the display area is arranged on the top wall surface of the base, and the parking plate further comprises a movable cover plate rotatably connected to the base, the movable cover plate has a closed position and an open position on the rotation path, when the movable cover plate is in the closed position, the movable cover plate is close to the top surface of the base and covers the display area, and when the movable cover plate is in the open position, the movable cover plate opens the display area to expose the display area.

[0010] Optionally, the parking plate further comprises a driving device installed in the mounting cavity, and the output shaft of the driving device is connected with the movable cover plate to drive the rotation of the movable cover plate.

[0011] Optionally, the main control board is electrically connected with the driving device, and the main control board is configured to control the driving device to drive the movable cover plate to the open position when the communication module controls the car to be locked, and control the driving device to drive the movable cover plate to the closed position when the communication module controls the car to be unlocked.

[0012] Optionally, the parking plate further comprises a battery installed in the installation cavity, the driving device and the battery are electrically connected with the main control board, the main control board is electrically connected with the driving device, and the parking plate further comprises a Bluetooth module installed in the main control board, the main control board is configured to control the driving device to drive the movable cover plate to the closed position when the Bluetooth module is connected with an external Bluetooth device in pairing mode, and control the driving device to drive the movable cover plate to the open position when the Bluetooth module is disconnected with the external Bluetooth device.

[0013] Optionally, one side of the movable cover plate is provided with a connecting portion, and the connecting portion is provided with a connecting hole; a top wall of the base is provided with an installation groove, the connecting portion is rotatably installed in the installation groove, a groove wall of the installation groove is provided with a through hole communicating with the installation cavity, and an output shaft of the driving device extends into the installation cavity through the through hole and cooperates with the connecting hole.

[0014] Optionally, a stop rib is protruded from a peripheral wall of the connecting portion, a groove wall of the installation groove is provided with an avoiding groove, and the stop rib is movably located in the avoiding groove; when the movable cover plate is in the open position, the stop rib abuts against the groove wall of the avoiding groove to limit the movable cover plate from continuing to rotate in the direction of opening the display area.

[0015] Optionally, the groove wall of the installation groove is provided with an axle hole opposite to the through hole, the axle hole is coaxially arranged with the through hole, and the connecting portion is further provided with a connecting shaft at an end away from the connecting hole, and the connecting shaft is rotatably cooperated with the axle hole.

[0016] Optionally, the top wall surface of the base and the bottom wall surface of the base form an included angle, so that the display area is inclined upward.

[0017] Optionally, the display area has a first side and a second side arranged oppositely, the first side is higher than the second side, and when the movable cover plate is in the open position, the movable cover plate is located at a side of the first side away from the second side.

[0018] The utility model discloses a technical scheme, signal enhancement antenna can pass communication module transceiver's signal transmission and amplify, make communication signal be enhanced greatly, to make communication module emission and / or receiving signal can interact with external vehicle or accessory, guarantee that parking license plate can correctly identify vehicle signal, to improve the control effect to car. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to the structure shown in these drawings.

[0020] Figure 1 It is structural schematic drawing of one embodiment of the utility model parking license plate;

[0021] Figure 2 It is structural schematic drawing of another embodiment of the utility model parking license plate;

[0022] Figure 3 It is structural section view of one embodiment of the utility model parking license plate;

[0023] Figure 4 It is structural section view of another embodiment of the utility model parking license plate;

[0024] Figure 5 It is structural section view of still another embodiment of the utility model parking license plate;

[0025] Figure 6 It is structural exploded view of one embodiment of the utility model parking license plate;

[0026] Figure 7 It is structural exploded view of another embodiment of the utility model parking license plate;

[0027] Figure 8 It is structural side view of one embodiment of the utility model parking license plate.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] Reference Name Reference Name Reference Name 10 Base 11 Display area 20 Movable cover plate 12 Mounting cavity 30 Driving device 40 Main control board 50 Battery 60 Display card 13 Sunk groove 70 Non-slip pad 21 Connecting part 31 Output shaft 14 Mounting groove 211 Stop rib 141 Avoidance groove 212 Connecting shaft 80 Signal enhancement antenna

[0030] The realization of the utility model, functional characteristics and advantages will be further explained by combining with the embodiment, and referring to the drawings. DETAILED DESCRIPTION

[0031] Clearly and completely describe the technical solutions in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0032] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications also change accordingly.

[0033] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0034] The utility model provides a parking license plate, aim at solving how improve the signal transmission effect between parking license plate and car technical problem, in the embodiment of the utility model, such as Figures 1 to 3 As shown in the drawing, the parking license plate comprises a base 10, the base 10 is equipped with installation cavity 12, the outer wall surface of base 10 is equipped with display area 11, and the display area 11 is used to display contact information, a main control board 40 is installed in the installation cavity 12, a communication module is installed in the main control board 40, the communication module is used to be connected with the car machine system and mobile terminal of car, so that the mobile terminal controls the locking or unlocking of car through the communication module, a signal enhancement antenna 80 is installed in the main control board 40, and the signal enhancement antenna 80 is used to enhance the signal of the communication module transceiver.

[0035] In the embodiment, the base 10 is used to form the overall appearance structure of the parking license plate, and the base 10 can be placed at the center console of the car and close to the front windshield. The display area 11 is arranged on the top wall surface of the base 10, and the display area 11 is used to display the contact information, which can be a telephone number or a mobile phone number, or a two-dimensional code of a communication software, for example, a WeChat two-dimensional code of the car owner.

[0036] The communication module can be paired with the car machine system and the user's mobile terminal for communication. The mobile terminal is a smart terminal, for example, a mobile phone, a smart watch or a smart bracelet, and the like, which can be carried by the user. The communication module is used for the user to realize wireless communication with the car machine system through the mobile terminal, so as to achieve the effect of controlling the car to lock or unlock. The communication form of the communication module with the mobile terminal and the car machine system is various, for example, the wireless communication can be realized through Bluetooth, 3G network, 4G network or 5G network, and the like, which is not limited here.

[0037] For example, the communication module can be part of a smart key system (PASSIVE KEYLESS ENTER, PKE for short), which adopts RFID wireless radio frequency technology and vehicle identity coding identification system, applies a development scheme of small-sized and low-power radio frequency antenna, and combines remote control system and keyless system, and follows the traditional whole vehicle circuit protection, realizes double radio frequency system and double anti-theft protection. In the PKE system, the car is used as a base station, and the parking license plate is used as a transponder to realize two-way communication. The communication module includes a receiving antenna, a microcontroller, a high-frequency transmitting circuit, a low-frequency receiving circuit and a control switch and the like.

[0038] Of course, the communication module can also be an element in the ultra-wideband wireless carrier communication technology. Ultra-wideband (Ultra WideBand, UWB for short) adopts a new ultra-wideband wireless technology which is greatly different from traditional communication technology. The transmission and reception have extremely narrow pulses of nanoseconds or below, and the vehicle transmits data with a bandwidth of 3.1-10.6 GHz, which is not easy to be disturbed by other signals. Through the interaction of the UWB of the parking license plate and the UWB of the vehicle, the positioning algorithm feature can be used to identify the centimeter-level distance from the vehicle, and the fast response can be easily realized, so that the user can automatically control the car through the parking license plate.

[0039] The communication module is installed in the parking card, so that the communication module can be connected with the vehicle system in proximity, so that the mobile terminal such as a mobile phone or a smart watch can realize communication control of the vehicle through the communication module from outside the vehicle. Therefore, when using the parking card, the communication module needs to be paired with the vehicle system and the mobile terminal, without the need to modify the vehicle system circuit and the hardware of the mobile terminal, thereby improving the convenience of vehicle control. Since the position of the parking card in the vehicle is relatively stable, the distance between the communication module and the vehicle system is relatively stable, thereby ensuring the communication signal strength between the communication module and the vehicle system, and improving the effect of vehicle control.

[0040] The signal enhancement antenna 80 can transmit and amplify the signals received and transmitted by the communication module, so that the communication signals are greatly enhanced, thereby enabling the signals transmitted and / or received by the communication module to interact with external vehicles or accessories, ensuring that the parking card can correctly identify vehicle signals, and improving the control effect of the vehicle.

[0041] Specifically, as shown in Figure 1 and Figure 2 The display area 11 is arranged on the top wall of the base 10. The parking card further comprises a movable cover plate 20 rotatably connected to the base 10. The movable cover plate 20 has a closed position and an open position on the rotation path. When the movable cover plate 20 is in the closed position, the movable cover plate 20 is close to the top surface of the base 10 and covers the display area 11. When the movable cover plate 20 is in the open position, the movable cover plate 20 opens the display area 11 so that the display area 11 can be exposed.

[0042] The movable cover plate 20 can cover or open the display area 11 by rotation. For example, before the user gets off the vehicle after parking, the user can operate the movable cover plate 20 to open the display area 11, so that the display area 11 can be exposed towards the front windshield. When the user gets on the vehicle to prepare for driving, the user can operate the movable cover plate 20 to cover the display area 11. At this time, the movable cover plate 20 is close to the top wall of the base 10 as a whole, thereby avoiding interference of the movable cover plate 20 with the user's line of sight, to ensure driving safety.

[0043] The movable cover plate 20 is arranged to cover or open the display area 11 of the base 10, so that the user can operate the movable cover plate 20 to cover the display area 11, thereby facilitating the user to hide the contact information on the parking card according to actual needs, to improve the use convenience of the parking card.

[0044] Exemplarily, as shown in Figure 4As shown, the parking plate further comprises a driving device 30 installed in the installation cavity 12, an output shaft 31 of the driving device 30 is connected with the movable cover plate 20 to drive the movable cover plate 20 to rotate. The driving device 30 can drive the movable cover plate 20 to rotate, so that each time the movable cover plate 20 needs to be driven to cover or expose the display area 11, the user does not need to manually operate, thereby improving the use convenience of the parking plate.

[0045] Specifically, the main control board 40 is electrically connected with the driving device 30, the main control board 40 is configured to control the driving device 30 to drive the movable cover plate 20 to the open position when the communication module controls the car to be locked, and control the driving device 30 to drive the movable cover plate 20 to the closed position when the communication module controls the car to be unlocked.

[0046] The main control board 40 controls the driving device 30 to drive the movable cover plate 20 to rotate to the corresponding position through the operation of the communication module. The main control board 40 is provided with a main control circuit, a lock triggering circuit and an unlocking triggering circuit, the main control circuit is electrically connected with the driving device 30, the lock triggering circuit and the unlocking triggering circuit are both electrically connected with the main control circuit, and the lock triggering circuit and the unlocking triggering circuit are also electrically connected with the communication module. The lock triggering circuit can be triggered when the communication module controls the car to be locked, the lock triggering circuit sends a first electric signal to the main control circuit, and the main control circuit controls the driving device 30 to drive the movable cover plate 20 to rotate to the open position according to the first electric signal. In this way, the user can trigger the movable cover plate 20 to expose the display area 11 at the same time when locking the car, without the need for additional operation steps, thereby preventing the user from forgetting to open the movable cover plate 20 before getting off the car, and improving the use convenience of the parking plate.

[0047] The unlocking triggering circuit can be triggered when the communication module controls the car to be unlocked, the unlocking triggering circuit sends a second electric signal to the main control circuit, and the main control circuit controls the driving device 30 to drive the movable cover plate 20 to rotate to the closed position according to the second electric signal. In this way, the user can trigger the movable cover plate 20 to cover the display area 11 at the same time when unlocking the car, without the need for additional operation steps, thereby improving the use convenience of the parking plate.

[0048] The main control board 40, the communication module and the driving device 30 can be powered by the car, for example, the parking plate is provided with a power connection interface, the power connection interface can be electrically connected with the interface of the car through an electric connection line, so that the car can supply power to the parking plate.

[0049] Specifically, as shown in FIG. 6, the main control board 40 is provided with a main control circuit, a lock triggering circuit and an unlocking triggering circuit, the main control circuit is electrically connected with the driving device 30, the lock triggering circuit and the unlocking triggering circuit are both electrically connected with the main control circuit, and the lock triggering circuit and the unlocking triggering circuit are also electrically connected with the communication module. Figure 5As shown, the parking plate further comprises a battery 50 installed in the installation cavity 12, the driving device 30 and the battery 50 are electrically connected with the main control board 40, the main control board 40 is electrically connected with the driving device 30, the parking plate further comprises a Bluetooth module installed in the main control board 40, the main control board 40 is configured to control the driving device 30 to drive the movable cover plate 20 to the closed position when the Bluetooth module is connected with an external Bluetooth device in pairing mode; and control the driving device 30 to drive the movable cover plate 20 to the open position when the Bluetooth module is disconnected with the external Bluetooth device.

[0050] The Bluetooth module can be a Bluetooth antenna, and the Bluetooth module can be connected with an external Bluetooth device in pairing mode, for example, connected with a vehicle Bluetooth in pairing mode, or connected with a vehicle owner's mobile phone Bluetooth in pairing mode.

[0051] The main control board 40 is provided with a main control circuit, a Bluetooth connection trigger circuit and a Bluetooth disconnection trigger circuit, the main control circuit is electrically connected with the driving device 30, the Bluetooth connection trigger circuit and the Bluetooth disconnection trigger circuit are electrically connected with the main control circuit, and the Bluetooth connection trigger circuit and the Bluetooth disconnection trigger circuit are further electrically connected with the Bluetooth module. The Bluetooth connection trigger circuit can be triggered when the Bluetooth module is connected with an external Bluetooth device in pairing mode, the Bluetooth connection trigger circuit sends a first electric signal to the main control circuit, and the main control circuit controls the driving device 30 to drive the movable cover plate 20 to rotate to the closed position according to the first electric signal. The Bluetooth disconnection trigger circuit can be triggered when the Bluetooth module is disconnected with the external Bluetooth device, the Bluetooth disconnection trigger circuit sends a second electric signal to the main control circuit, and the main control circuit controls the driving device 30 to drive the movable cover plate 20 to rotate to the open position according to the second electric signal.

[0052] When the Bluetooth module is connected with a vehicle Bluetooth or a vehicle owner's portable device Bluetooth in pairing mode, it indicates that the vehicle has started or the vehicle owner has got in the vehicle at this time, and the main control board 40 can control the driving device 30 to drive the movable cover plate 20 to the closed position; when the Bluetooth module is disconnected with the vehicle Bluetooth or the vehicle owner's portable device Bluetooth in pairing mode, it indicates that the vehicle has been turned off or the vehicle owner has got off the vehicle at this time, and the main control board 40 can control the driving device 30 to drive the movable cover plate 20 to the open position; in this way, the vehicle owner can trigger the movable cover plate 20 to display the display area 11 at the same time when the vehicle is turned off or the vehicle owner gets off the vehicle, without the need for additional operation steps, thereby preventing the vehicle owner from forgetting to open the movable cover plate 20 before getting off the vehicle, and improving the use effect of the parking plate.

[0053] For example, Figure 5 and Figure 6As shown, one side of the movable cover plate 20 is provided with a connecting portion 21, and the connecting portion 21 is provided with a connecting hole; the top wall of the base 10 is provided with a mounting groove 14, and the connecting portion 21 is rotatably mounted in the mounting groove 14; the groove wall of the mounting groove 14 is provided with a through hole communicating with the mounting cavity 12, and the output shaft 31 of the driving device 30 extends into the mounting cavity 12 through the through hole and cooperates with the connecting hole. The structural strength of the connecting portion 21 is greater than that of the movable cover plate 20, and the output shaft 31 of the driving device 30 is connected with the connecting portion 21, so that the connection stability can be improved. The connecting portion 21 is arranged in the mounting groove 14, which can hide the connecting portion 21 and reduce the appearance volume of the license plate.

[0054] Specifically, as shown in Figure 5 and Figure 6 , the peripheral wall of the connecting portion 21 is provided with a stop rib 211, and the groove wall of the mounting groove 14 is provided with a avoiding groove 141, and the stop rib 211 is movably located in the avoiding groove 141, and when the movable cover plate 20 is in the open position, the stop rib 211 abuts against the groove wall of the avoiding groove 141 to limit the movable cover plate 20 from continuing to rotate in the direction of opening the display area 11. The stop rib 211 abuts against the groove wall of the avoiding groove 141, which can make the movable cover plate 20 stably stay in the open position, prevent the movable cover plate 20 from continuing to rotate, and also avoid the movable cover plate 20 from being deformed or damaged due to direct blocking force.

[0055] In actual application, as shown in Figure 5 and Figure 6 , the groove wall of the mounting groove 14 is provided with an axis hole opposite to the through hole, and the axis hole is coaxially arranged with the through hole, and the end of the connecting portion 21 away from the connecting hole is further provided with a connecting shaft 212, and the connecting shaft 212 is rotatably cooperated with the axis hole. The connecting hole and the connecting shaft 212 are respectively arranged on the two opposite sides of the connecting portion 21, and the connecting shaft 212 is rotatably cooperated with the axis hole. In this way, the base 10 can support the rotating process of the movable cover plate 20 through the connecting shaft 212, avoid the output shaft 31 of the driving device 30 from being concentratedly stressed, so that the rotating stability of the movable cover plate 20 can be improved.

[0056] Exemplarily, as shown in Figure 7 and Figure 8 , the top wall surface of the base 10 forms an angle with the bottom wall surface of the base 10, so that the display area 11 is inclined upward. The distance between the top wall surface and the bottom wall surface gradually increases from the side of the license plate close to the front windshield to the side away from the front windshield, so that the display area 11 can be inclined toward the front windshield, so that the person outside the car can more easily see the contact information on the display area 11 through the front windshield, so as to improve the display effect.

[0057] Specifically, as shown inFigure 7 and Figure 8 As shown in the figure, the display area 11 has a first side and a second side arranged oppositely, the first side is higher than the second side, and the movable cover plate 20 is located on the side of the first side away from the second side when the movable cover plate 20 is in the open position. With reference to the positional relationship between the display area 11 and the front windshield, the second side is closer to the front windshield than the first side, and is also lower. When the movable cover plate 20 is in the open position, it is located on the side of the first side away from the second side, that is, when the movable cover plate 20 is in the open position, the display area 11 is located between the front windshield and the movable cover plate 20, so that the movable cover plate 20 can play a certain light-blocking role to prevent people outside the vehicle from being unable to see the contact information on the display area 11 due to reflection, thereby further improving the display effect.

[0058] In actual application, the angle between the movable cover plate 20 and the display area 11 is set to 90° to 120° when the movable cover plate 20 is in the open position. In this way, it can be ensured that the movable cover plate 20 can completely open the display area 11 to prevent the movable cover plate 20 from blocking the line of sight of people outside the vehicle looking at the display area 11, and it can also be ensured that the movable cover plate 20 plays a light-blocking role to enable people outside the vehicle to clearly see the contact information on the display area 11.

[0059] The parking plate further comprises a display card 60, which is detachably arranged in the display area 11, and is used to record the contact information. When the user needs to change the contact information displayed on the display area 11, the display card 60 can be taken down, modified and then put back into the display area 11, or a new display card 60 can be directly replaced. In this way, it is convenient for the user to change the contact information to be displayed, and the use convenience of the parking plate is further improved.

[0060] The top wall surface of the base 10 is provided with a sunken groove 13, the display area 11 is arranged on the groove bottom of the sunken groove 13, the display card 60 is arranged in the sunken groove 13, and the movable cover plate 20 is located in the sunken groove 13 when the movable cover plate 20 is in the closed position. The sunken groove 13 can play a positioning role on the display card 60, so that the display card 60 can be stably positioned in the display area 11 to improve the placement stability of the display card 60. The movable cover plate 20 is located in the sunken groove 13 when the movable cover plate 20 is in the closed position, and the surface of the movable cover plate 20 is flush with the groove opening of the sunken groove 13.

[0061] The parking plate further comprises an anti-skid pad 70, which is arranged on the bottom wall surface of the base 10. When the parking plate is placed on the center console, the anti-skid pad 70 is in contact with the center console. The anti-skid pad 70 has a higher friction coefficient, which can improve the friction between the parking plate and the center console, thereby improving the placement stability of the parking plate on the center console and preventing the parking plate from easily deviating from the original position.

[0062] The above only describes optional embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A parking placard, comprising: The parking plate comprises: a base provided with a mounting cavity, an outer wall surface of the base is provided with a display area for displaying contact information; a main control board installed in the mounting cavity; a communication module installed on the main control board, the communication module is used to communicate with the car machine system and the mobile terminal, so that the mobile terminal controls the car to lock or unlock through the communication module; a signal enhancement antenna installed on the main control board, used to enhance the signal transmitted and received by the communication module.

2. The parking placard of claim 1, wherein, The display area is arranged on the top wall surface of the base, and the parking plate further comprises a movable cover plate rotatably connected to the base, the movable cover plate has a closed position and an open position on the rotating path, when the movable cover plate is in the closed position, the movable cover plate is close to the top surface of the base and covers the display area; When the movable cover plate is in the open position, the movable cover plate opens the display area to expose the display area.

3. The parking placard of claim 2, wherein, The parking plate further comprises a driving device installed in the mounting cavity, an output shaft of the driving device is connected with the movable cover plate to drive the movable cover plate to rotate.

4. The parking placard of claim 3, wherein, The main control board is electrically connected with the driving device, the main control board is configured to control the driving device to drive the movable cover plate to the open position when the communication module controls the car to lock, and control the driving device to drive the movable cover plate to the closed position when the communication module controls the car to unlock.

5. The parking placard of claim 3, wherein, The parking plate further comprises a battery installed in the mounting cavity, the driving device and the battery are electrically connected with the main control board, the parking plate further comprises a Bluetooth module installed on the main control board, the main control board is configured to control the driving device to drive the movable cover plate to the closed position when the Bluetooth module is connected with the external Bluetooth device, and control the driving device to drive the movable cover plate to the open position when the Bluetooth module is disconnected with the external Bluetooth device.

6. A parking ticket according to any one of claims 3 to 5, wherein One side of the movable cover plate is provided with a connecting part, the connecting part is provided with a connecting hole; the top wall of the base is provided with a mounting groove, the connecting part is rotatably installed in the mounting groove, the groove wall of the mounting groove is provided with a through hole communicating with the mounting cavity, the output shaft of the driving device extends into the mounting cavity through the through hole and cooperates with the connecting hole.

7. The parking placard of claim 6, wherein, The connecting part is provided with a stop rib on the peripheral wall, the groove wall of the mounting groove is provided with a avoiding groove, the stop rib is movably located in the avoiding groove, when the movable cover plate is in the open position, the stop rib abuts against the groove wall of the avoiding groove to limit the movable cover plate to continue rotating in the direction of opening the display area.

8. The parking placard of claim 6, wherein, The groove wall of the mounting groove is provided with an axis hole opposite to the through hole, the axis hole is coaxially arranged with the through hole, the connecting part is further provided with a connecting shaft at one end away from the connecting hole, the connecting shaft is rotatably cooperated with the axis hole.

9. A parking ticket according to any one of claims 2 to 4, wherein The top wall surface of the base and the bottom wall surface of the base form an included angle, so that the display area is inclined upward.

10. The parking placard of claim 9, wherein, The display area has a first side and a second side disposed opposite each other, the first side is higher than the second side, and the movable cover plate is located on a side of the first side away from the second side when the movable cover plate is in the open position.

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