License plate recognition barrier gate all-in-one machine and control method thereof

Abstract

The invention provides a license plate recognition barrier gate all-in-one machine and a control method thereof. The license plate recognition barrier gate all-in-one machine comprises a machine shell, a gate core assembly and a gate rod. The brake core assembly comprises a supporting frame, a motor, a main shaft, a driving arm and a buffering arm. The supporting frame comprises a supporting plate and two bearing seats, and the two bearing seats are both fixed to the upper surface of the supporting plate and located on the edges of the two sides of the supporting plate respectively. The main shaft is of a hollow circular tube structure, the structural strength can be improved, and the peripheral size of the main shaft is increased; the driving arm and the buffer arm are clamped on the periphery of the main shaft, so that the connecting area of the main shaft, the driving arm and the buffer arm can be increased, and the transmission stability and reliability are effectively improved. The driving arm and the buffering arm are both arranged between the two bearing seats, so that acting force of the motor and the spring mechanism is both applied to the portion, located between the two bearing seats, of the main shaft, the two bearing seats are stressed relatively in a balanced mode, and then the rotating stability of the main shaft is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of barrier gates, and particularly to a license plate recognition barrier gate integrated machine and its control method. Background Art

[0002] A barrier gate, also known as a vehicle stopper, is a device for managing the access of vehicle passages on roads, and is widely used in highway toll stations and parking lot systems to manage vehicle passages.

[0003] A main shaft is provided inside the barrier gate. The main shaft is connected to the gate rod, and the motor drives the main shaft to drive the gate rod to lift, so as to open or close the driving passage. In order to reduce the load of the motor, a spring mechanism is also connected to the main shaft. In order to connect the main shaft with the gate rod, the motor, and the spring mechanism, the length of the main shaft is generally large. After the barrier gate operates for a long time, the main shaft is prone to deformation, and the connection between the main shaft and the motor and the spring mechanism is prone to slipping, affecting the operation stability and reliability. Summary of the Invention

[0004] The present invention provides a license plate recognition barrier gate integrated machine and its control method, which can improve the operation stability and reliability.

[0005] On the one hand, the present invention provides a license plate recognition barrier gate integrated machine, including a machine shell, a gate core assembly, and a gate rod; the gate core assembly is arranged inside the machine shell and includes a support frame, a motor, a main shaft, a driving arm, and a buffer arm;

[0006] The support frame includes a support plate and two bearing seats. The two bearing seats are both fixed on the upper surface of the support plate and are respectively located at the two side edges of the support plate; the main shaft is a hollow circular tube structure and is rotatably connected to the two bearing seats around its own axis; one end of the main shaft extends outside the machine shell and is connected to the gate rod;

[0007] The driving arm and the buffer arm are arranged along the axial direction of the main shaft, and both are located between the two bearing seats; one end of the driving arm clamps the outer circumference of the main shaft, and the other end is connected to the motor through a link mechanism; one end of the buffer arm clamps the outer circumference of the main shaft, and the other end is connected to the spring mechanism.

[0008] Wherein, the two edges of the support plate adjacent to the bearing seats are the first edges, and two vertical plates are formed by bending the two first edges upward; the two opposite edges of the support plate located between the two bearing seats are the second edges, and the two second edges are fixedly connected to the machine shell.

[0009] Wherein, the spring mechanism is located below the buffer arm, and the included angle between the length direction of the buffer arm and the length direction of the gate rod is an acute angle; when the gate rod rotates, the buffer arm is always located on the same side of the main shaft in the horizontal direction.

[0010] Wherein, key grooves are provided at positions on the main shaft corresponding to the buffer arm and the brake rod, keys are provided in the key grooves, and the buffer arm and the brake rod are connected to the main shaft through the keys.

[0011] Wherein, the brake core assembly further includes a sensing module. In the axial direction of the main shaft, the sensing module is located between the buffer arm and the driving arm; the buffer arm and the driving arm are located on one side of the main shaft in the horizontal direction, and the sensing module is located on the other side of the main shaft in the horizontal direction;

[0012] The sensing module includes a positioning plate, two sensors and two induction sheets. The positioning plate is vertically fixed on the upper surface of the support plate. The two sensors are both fixed on the positioning plate and arranged along the axial direction of the main shaft; the two induction sheets are both arranged on the main shaft and respectively correspond to and cooperate with the two sensors for detecting two position states of the brake rod.

[0013] Wherein, the license plate recognition barrier gate integrated machine further includes a license plate recognition component and an electric control component;

[0014] The machine shell includes a housing and a door body. The license plate recognition component, the brake core component and the electric control component are sequentially arranged in the housing in the vertical direction; the door body is rotatably arranged on the housing, and its rotation axis is vertical; the top of the door body is higher than the license plate recognition component, and the bottom is lower than the electric control component.

[0015] Wherein, an inner groove is provided on the door body. The inner groove is correspondingly arranged with the license plate recognition component and is recessed towards the inside of the machine shell; a light-transmitting plate is provided in the inner groove. The light-transmitting plate is oppositely arranged with the notch of the inner groove. The top of the inner groove has a groove top wall, and the bottom has a groove bottom wall. Both the groove top wall and the groove bottom wall are inclined and gradually rise in the direction from the notch of the inner groove to the light-transmitting plate; a fan is provided on the upper surface of the groove top wall, and the air outlet direction of the fan faces the light-transmitting plate.

[0016] Wherein, the brake rod includes a rotating rod, a telescopic rod and a telescopic driving mechanism; the rotating rod is a hollow structure and is connected to the main shaft. The parts of the rotating rod on both sides of the main shaft are respectively a first rod and a second rod;

[0017] The telescopic rod is sleeved in the rotating rod, and the telescopic driving mechanism is connected to the telescopic rod to drive the telescopic rod to move along the rotating rod; when the gate rod rotates to the horizontal position, the telescopic rod can move along the rotating rod under the drive of the telescopic driving mechanism so that the gate rod is switched between the extended state and the retracted state; when the gate rod is in the extended state, the outer end of the telescopic rod moves outside the rotating rod, and the inner end of the telescopic rod is located at the first rod; when the gate rod is in the retracted state, the inner end of the telescopic rod moves to the second rod, and the gate rod can rotate under the drive of the gate core assembly.

[0018] Wherein, at least part of the structure of the telescopic driving mechanism is arranged in the main shaft.

[0019] On the other hand, the present invention provides a control method for a license plate recognition gate integrated machine, using the aforementioned license plate recognition gate integrated machine, and the control method includes:

[0020] In the initial state, the gate rod is in the horizontal position and in the unfolded state;

[0021] Detect whether a vehicle is approaching; if it is detected that a vehicle is approaching, proceed to the next step;

[0022] Control the inner end of the telescopic rod to move to the second rod so that the gate rod is in the retracted state, and at the same time identify the license plate information of the vehicle;

[0023] After obtaining the license plate information, control the main shaft to drive the gate rod to rotate to the vertical position;

[0024] After the vehicle passes through the license plate recognition gate integrated machine, control the main shaft to drive the gate rod to rotate to the horizontal position;

[0025] Control the telescopic rod to extend so that the gate rod is in the extended state.

[0026] For the license plate recognition gate integrated machine and its control method provided by the present invention, the main shaft is a hollow circular tube structure, which can improve its structural strength and increase the outer peripheral dimension of the main shaft; the active arm and the buffer arm are both clamped on the outer periphery of the main shaft, which can increase the connection area between the main shaft and the active arm and the buffer arm, improve the connection reliability, thereby effectively improving the transmission stability and reliability, and facilitating the active arm and the buffer arm to apply force to the main shaft. The active arm and the buffer arm are both arranged between two bearing seats, so that the acting forces of the motor and the spring mechanism are both applied to the part of the main shaft between the two bearing seats, making the forces on the two bearing seats relatively balanced, and further ensuring the stability of the rotation of the main shaft. Description of the Drawings

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings in the following description are only the corresponding drawings of some embodiments of the present invention.

[0028] Figure 1 It is a schematic structural diagram of a license plate recognition gate integrated machine provided by the first preferred embodiment of the present invention;

[0029] Figure 2 is Figure 1 A schematic diagram of another angle of the license plate recognition gate integrated machine in

[0030] Figure 3 is Figure 1 A schematic structural diagram of the license plate recognition gate integrated machine in the state where the door body is opened;

[0031] Figure 4 is Figure 3 A schematic structural diagram of the core component of the license plate recognition gate integrated machine in the state where the gate rod is horizontal in

[0032] Figure 5 is Figure 4 A schematic diagram of another angle of the core component in

[0033] Figure 6 is Figure 5 A schematic structural diagram of the core component in the state where the gate rod is vertical in

[0034] Figure 7 is Figure 5 A schematic structural diagram of the main shaft of the core component in

[0035] Figure 8 is Figure 3 A schematic structural diagram of the door body of the license plate recognition gate integrated machine in

[0036] Figure 9 is Figure 8 The sectional view taken along line A-A in

[0037] Figure 10 is Figure 9 The enlarged view at B in

[0038] Figure 11 is Figure 3 A schematic structural diagram of the adjustable bracket of the license plate recognition gate integrated machine in

[0039] Figure 12 is Figure 11 A schematic diagram of another angle of the adjustable bracket in

[0040] Figure 13 It is a schematic structural diagram of the gate rod and the main shaft of the license plate recognition gate integrated machine in the second embodiment of the present invention;

[0041] Figure 14 is Figure 13 Exploded view of the middle brake rod and the main shaft;

[0042] Figure 15 It is a schematic structural diagram of another implementation manner of the brake rod and the main shaft in the second embodiment of the present invention. Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] In the terms of the present invention, words such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance, nor as limiting the sequence.

[0045] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0046] Please refer to Figure 1 、 Figure 2 and Figure 3 , a license plate recognition boom barrier integrated machine provided by a preferred embodiment of the present invention includes a machine shell 1, a license plate recognition component 2, an electric control component 3, a brake core component 4 and a brake rod 5. The license plate recognition component 2, the electric control component 3 and the brake core component 4 are all arranged in the machine shell 1. The license plate recognition component 2 is used to recognize license plates. The brake core component 4 is connected to the brake rod 5 to enable the brake rod 5 to be switched between horizontal and vertical positions. When the brake rod 5 is in the horizontal position, vehicle passage is prohibited; when the brake rod 5 is in the vertical position, vehicle passage is allowed. The electric control component 3 is electrically connected to the license plate recognition component 2 and the brake core component 4, and is used to record license plates and control the operation of the brake core component 4.

[0047] By arranging the license plate recognition component 2 in the machine shell 1, after the angle of the license plate recognition component 2 is adjusted, its position will not be affected by external factors, ensuring effective license plate recognition.

[0048] Such as Figure 4 、 Figure 5 andFigure 6 As shown, the brake core assembly 4 includes a support frame 41, a motor 42, a main shaft 43, a driving arm 44 and a buffer arm 45. The support frame 41 includes a support plate 411 and two bearing seats 412. The two bearing seats 412 are both fixed on the upper surface of the support plate 411 and are respectively located at the two side edges of the support plate 411, so as to make full use of the structure of the support plate 411 to increase the space between the two bearing seats 412.

[0049] The main shaft 43 is a hollow circular tube structure and is rotatably connected to the two bearing seats 412 around its own axis. Since the bearing seats 412 are respectively located at the two side edges of the support plate 411, the structure of the support plate 411 can be fully utilized to increase the size of the main shaft 43 between the two bearing seats 412 and improve the rotational stability.

[0050] The driving arm 44 and the buffer arm 45 are arranged along the axis of the main shaft 43, and both are located between the two bearing seats 412. One end of the driving arm 44 is clamped around the outer periphery of the main shaft 43, and the other end is connected to the motor 42 through a link mechanism 46; one end of the buffer arm 45 is clamped around the outer periphery of the main shaft 43, and the other end is connected to a spring mechanism 47.

[0051] The main shaft 43 is a hollow circular tube structure, which can improve its structural strength and increase the outer peripheral dimension of the main shaft 43; both the driving arm 44 and the buffer arm 45 are clamped around the outer periphery of the main shaft 43, which can increase the connection area between the main shaft 43 and the driving arm 44 and the buffer arm 45, improve the connection reliability, thus effectively improving the transmission stability and reliability, and facilitating the driving arm 44 and the buffer arm 45 to apply forces to the main shaft 43.

[0052] One end of the main shaft 43 extends outside the housing 1 and is connected to the brake rod 5. The motor 42 is fixed on the support plate 411 and is connected to the main shaft 43 through a link mechanism 46 to drive the main shaft 43 to rotate, and then drive the brake rod 5 to rotate, so that the brake rod 5 rotates between the vertical position and the horizontal position, and then opens or closes the driving lane.

[0053] Both the driving arm 44 and the buffer arm 45 are arranged between the two bearing seats 412, so that the driving force of the motor 42 acts on the part of the main shaft 43 between the two bearing seats 412, making the forces on the two bearing seats 412 relatively balanced, and then ensuring the rotational stability of the main shaft 43.

[0054] The two edges of the support plate 411 adjacent to the bearing seat 412 are first edges 411a, and the two first edges 411a are bent upward to form a vertical plate 413; the two opposite edges of the support plate 411 located between the two bearing seats 412 are second edges 411b, and the two second edges 411b are fixedly connected to the shell of the housing 1. The vertical plate 413 can improve the structural strength at the first edge 411a, and after the second edge 411b is fixedly connected to the housing 1, the housing 1 can improve the structural strength at the second edge 411b, so that the structural strength of the entire support plate 411 is relatively large, thereby ensuring the stability of the operation of the gate core assembly 4.

[0055] The gate rod 5 is parallel to the active arm 44 to facilitate the positioning and assembly connection of the two on the main shaft 43. The active arm 44 can switch between the horizontal position and the vertical position together with the gate rod 5.

[0056] The spring mechanism 47 is used to provide elastic force to the buffer arm 45, so that the buffer arm 45 drives the main shaft 43 and the gate rod 5 to move toward the vertical state, so as to reduce the load of the motor when lifting the gate rod 5. In this embodiment, the spring mechanism 47 is a plurality of parallel tension springs, each of which is arranged vertically. When the gate rod 5 is in a horizontal state, the spring mechanism 47 is stretched to provide elastic force to the buffer arm 45.

[0057] The spring mechanism 47 is located below the buffer arm 45, and the angle α between the length direction of the buffer arm 45 and the length direction of the gate rod 5 is an acute angle. When the gate rod 5 rotates, the buffer arm 45 is always located on the same side of the main shaft 43 in the horizontal direction, so that when the buffer arm 45 rotates, the other end of the buffer arm 45 has a larger vertical displacement and a smaller horizontal displacement, so that the vertical displacement of the buffer arm 45 is basically consistent with the deformation direction of the spring mechanism 47, which is beneficial to the deformation of the spring mechanism 47 and reduces the shaking of the spring mechanism 47, thereby ensuring the stability and reliability of the gate core assembly 4 during rotation. Preferably, the angle α between the length direction of the buffer arm 45 and the length direction of the gate rod 5 is 35°-45°.

[0058] like Figure 7 As shown, key slots 430 are provided at positions corresponding to the buffer arm 45 and the gate rod 5 on the main shaft 43, and keys 431 are provided in the key slots 430. The buffer arm 45 and the gate rod 5 are connected to the main shaft 43 through the keys 431. The key slots 430 and the keys 431 can facilitate the positioning and assembly of the buffer arm 45 and the gate rod 5, so that the length directions of the two maintain a preset angle.

[0059] The brake core assembly 4 further includes a sensing module. Axially along the main shaft 43, the sensing module is located between the buffer arm 45 and the active arm 44. The buffer arm 45 and the active arm 44 are located on one side of the main shaft 43 in the horizontal direction, and the sensing module is located on the other side of the main shaft 43 in the horizontal direction to make full use of the space and make the structure more compact. As Figure 5 、 Figure 6 shown, the sensing module includes a positioning plate 481, two sensors 482 and two induction sheets 483. The positioning plate 481 is vertically fixed on the upper surface of the support plate 411. The two sensors 482 are both fixed on the positioning plate 481 and arranged axially along the main shaft 43. The two induction sheets 483 are both arranged on the main shaft 43 and respectively correspond to and cooperate with the two sensors 482 for detecting two position states of the brake rod 5. Through the cooperation of the two induction sheets 483 and the two sensors 482, the two positions of the brake rod 5 can be effectively monitored to ensure the reliability of detection.

[0060] As Figure 3 shown, the housing 1 includes a shell 11 and a door body 12. The license plate recognition assembly 2, the brake core assembly 4 and the electric control assembly 3 are sequentially arranged vertically in the shell 11. The door body 12 is rotatably arranged on the shell 11, and its rotation axis is vertical. The top of the door body 12 is higher than the license plate recognition assembly 2 and the bottom is lower than the electric control assembly 3, so that the door body 12 can shield the license plate recognition assembly 2, the brake core assembly 4 and the electric control assembly 3. By rotating the door body 12, the housing 1 can be opened, and the license plate recognition assembly 2, the brake core assembly 4 and the electric control assembly 3 can be exposed for maintenance. A display screen 18 is arranged at the position corresponding to the brake core assembly 4 on the door body 12. By arranging the display screen 18 on the door body 12, after the door body 12 is opened, the back of the display screen 18 can be exposed for easy maintenance of the display screen 18.

[0061] Combined with Figure 1 and Figure 2 shown, an inner groove 121 is arranged at the position corresponding to the license plate recognition assembly 2 on the door body 12. The inner groove 121 is recessed towards the inside of the housing 1; a light-transmitting plate 13 is arranged in the inner groove 121, and the light-transmitting plate 13 is arranged opposite to the notch of the inner groove 121. The top of the inner groove 121 has a groove top wall 122 and the bottom has a groove bottom wall 123. Both the groove top wall 122 and the groove bottom wall 123 are inclined and gradually rise in the direction from the notch of the inner groove 121 to the light-transmitting plate 13 to prevent rainwater from flowing towards the light-transmitting plate 13, so that rainwater will not enter the light-transmitting plate 13, avoiding affecting the light-transmitting performance of the light-transmitting plate 13, improving the waterproof performance and ensuring the operation reliability of the license plate recognition gate integrated machine.

[0062] As Figure 8 、 Figure 9 and Figure 10As shown, a fan 14 is provided on the top wall 122 of the groove. The air outlet direction of the fan 14 faces the light-transmitting plate 13. The fan 14 can blow air on the light-transmitting plate 13 to eliminate the water mist on the surface of the light-transmitting plate 13, ensuring that the license plate recognition component 2 can correctly collect images and improving the license plate recognition success rate. Both the fan 14 and the license plate recognition component 2 are electrically connected to the electronic control component 3. When the license plate recognition component 2 fails to take pictures normally, the electronic control component 3 starts the fan 14 to remove the fog on the light-transmitting plate 13, which is beneficial to license plate recognition.

[0063] The fan 14 is fixed on the upper surface of the top wall 122 of the groove. The inclined top wall 122 of the groove can prevent the external rain from wetting the fan 14. The central axis of the fan 14 is perpendicular to the top wall 122 of the groove. Since the top wall 122 of the groove is inclined, the central axis of the fan 14 is perpendicular to the fixed top wall 122 of the groove, which can make the central axis of the fan 14 also inclined and face the light-transmitting plate 13, so as to blow air on the light-transmitting plate 13, which is beneficial to the installation of the fan 14.

[0064] A heating module is provided inside the fan 14 to provide hot air and accelerate the defogging efficiency.

[0065] An integrated audio module 15 is also provided on the top wall 122 of the groove. The speaker and microphone included in the integrated audio module 15 can facilitate the communication between the management personnel and the passing personnel, and the license plate information can be manually registered. The integrated audio module 15 is also provided on the upper surface of the top wall 122 of the groove to prevent the external rain from wetting the integrated audio module 15. The integrated audio module 15 is relatively closer to the notch of the inner groove 121 than the fan 14, so as to make it closer to the driver and facilitate the sound transmission.

[0066] The horizontal depression depth of the inner groove 121 is greater than the vertical height of the light-transmitting plate 13, so that the light-transmitting plate 13 is far from the notch position of the inner groove 121, preventing rainwater from entering the position of the light-transmitting plate 13.

[0067] The light-transmitting plate 13 is adjacent to the top wall 122 of the groove and is spaced from the bottom wall 123 of the groove, further effectively preventing rain from getting in.

[0068] As Figure 3 shown, the housing 11 includes a top plate 111. When the door body 12 is in the closed state, the top plate 111 is located above the top wall 122 of the groove. When the door body 12 is in the open state, the upper surface of the top wall 122 of the groove is exposed, so that the integrated audio module 15 and the fan 14 are exposed, facilitating the installation of the integrated audio module 15 and the fan 14 on the inner surface of the top wall 122 of the groove and also facilitating the maintenance of the integrated audio module 15 and the fan 14.

[0069] As Figure 10As shown in the figure, a baffle 16 is fixed to the lower surface of the groove top wall 122. The baffle 16 is parallel to and in contact with the groove top wall 122. The baffle 16 extends outside the notch of the inner groove 121. The baffle 16 can be used to block the rainwater on the outer surface of the door body 12 outside the inner groove 121, further effectively preventing the rainwater from entering the groove top wall 122.

[0070] As Figure 3 , Figure 11 and Figure 12 As shown in the figure, the license plate recognition component 2 includes an adjustable bracket 21 and a camera (not shown in the figure). The adjustable bracket 21 includes a mounting plate 210, a first angle adjustment plate 211, and a second angle adjustment plate 212. One end of the mounting plate 210 is fixed to the housing 11, and the camera is mounted on the second angle adjustment plate 212. The first angle adjustment plate 211 is arranged at the other end of the mounting plate 210 through a first adjustment bolt 221 and rotates around the vertical direction to adjust the angle of the camera; the second angle adjustment plate 212 is mounted on the first angle adjustment plate through a second adjustment bolt 222 and rotates around the horizontal direction to adjust the angle of the camera. Through the first angle adjustment plate 211 and the second angle adjustment plate 212, the angles in the horizontal direction and the vertical direction can be adjusted, which is convenient for aligning the camera with the license plate position of the vehicle to facilitate recognition.

[0071] As Figure 8 , Figure 9 As shown in the figure, a supplementary light 19 is further arranged inside the door body 12. A light-transmitting baffle is arranged at the position corresponding to the supplementary light 19 on the door body 12 to protect the supplementary light 19 by the door body 12 and avoid external interference. The supplementary light 19 is located below the display screen 18 to irradiate the license plate position of the vehicle.

[0072] The main difference between the license plate recognition barrier gate integrated machine provided in the second embodiment of the present invention and the first embodiment lies in the gate rod 5. The structure of the gate rod 5 will be described in detail below.

[0073] As Figure 13 and Figure 14 As shown in the figure, the gate rod 5 includes a rotating rod 51, a telescopic rod 52, and a telescopic driving mechanism 53. The rotating rod 51 is a hollow structure, which is connected to the main shaft 43. The parts of the rotating rod 51 on both sides of the main shaft 43 are respectively a first rod 511 and a second rod 512.

[0074] The telescopic rod 52 is sleeved in the rotating rod 51, and the telescopic driving mechanism 53 is connected to the telescopic rod 52 to drive the telescopic rod 52 to move along the rotating rod 51. When the gate rod 5 rotates to the horizontal position, the telescopic rod 52 can move along the rotating rod 51 under the drive of the telescopic driving mechanism 53, so that the gate rod 5 can be switched between the extended state and the retracted state. When the gate rod 5 is in the extended state, the outer end of the telescopic rod 52 moves outside the rotating rod 51, and the inner end of the telescopic rod 52 is located at the first rod 511, so that the gate rod 5 is unfolded; when the gate rod 5 is in the retracted state, the inner end of the telescopic rod 52 moves to the second rod 512, and the gate rod 5 can rotate under the drive of the gate core assembly 4.

[0075] By using the movement of the telescopic rod 52 on the rotating rod 51, the overall length of the gate rod 5 can be changed. When the gate rod 5 is in the extended state, the outer end of the telescopic rod 52 moves outside the rotating rod 51, so that the gate rod 5 is in a state of larger length, so as to play a role in closing the driving lane.

[0076] When the gate rod 5 is in the retracted state, the inner end of the telescopic rod 52 is located at the second rod 512, so that part of the weight of the telescopic rod 52 is located at the second rod 512, reducing the weight of the telescopic rod 52 at the first rod 511, thereby reducing the torque exerted by the telescopic rod 52 on the main shaft 43, reducing the force required for the main shaft 43 to rotate, facilitating the rotation of the main shaft 43, and reducing the burden on the motor 42. This gate rod 5 is particularly suitable for situations with a larger length, such as a length of more than 5 meters.

[0077] The telescopic rod 52 is a hollow tubular structure, and the wall thickness at the inner end of the telescopic rod 52 is greater than the wall thickness at the outer end of the telescopic rod 52, so as to shift the center of gravity position of the telescopic rod 52 towards the inner end, thereby reducing the torque exerted by the telescopic rod 52 on the main pipe. The wall at the inner end of the telescopic rod 52 is thicker, which can improve the connection strength between the inner end of the telescopic rod 52 and the second rod 512 when the gate rod 5 is in the extended state.

[0078] The length of the telescopic rod 52 is 0.8 - 1 times the length of the rotating rod 51, so that the telescopic rod 52 is relatively shorter than the rotating rod 51, so that the length of the gate rod 5 in the retracted state is not less than half of its length in the unfolded state, so as to still be able to block the passage of vehicles in the retracted state.

[0079] The telescopic drive mechanism 53 is electrically connected to the electronic control component 3 to drive the telescopic rod 52 to move under the control of the electronic control component 3. The telescopic drive mechanism 53 may include a telescopic motor 531, a transmission rope 532, and two rollers 533. The two rollers 533 are respectively arranged on the first rod 511 and the second rod 512. The transmission rope 532 is annular and sleeved on the two rollers 533. The inner end of the telescopic rod 52 is connected to the transmission rope 532, and the telescopic motor 531 is connected to the transmission rope 532 for driving the transmission rope 532 to move, thereby driving the telescopic rod 52 to move.

[0080] Furthermore, the telescopic motor 531 may be arranged inside the main shaft 43. By using the hollow structure of the main shaft 43 to accommodate the telescopic motor 531, the space can be fully utilized, which is convenient for arranging the circuit connection between the telescopic motor 531 and the electronic control component 3.

[0081] The transmission rope 532 can be clamped to the telescopic rod 52 through a clamping block 534 for easy assembly. The transmission rope and the output shaft of the telescopic motor can be connected through a transmission pulley group 535 to facilitate the telescopic motor to drive the transmission rope to move.

[0082] The rotating rod 51 includes two butt-jointed half-tubes. The two half-tubes are arranged along the axial direction of the main shaft, and the two are butt-jointed to form a rotating tube, which is convenient for assembling the telescopic rod 52 to the rotating rod 51. The transmission rope 532 and the two rollers 533 can be arranged on one of the half-tubes, which is convenient for the assembly connection with the rotating rod 51 and at the same time convenient for the connection between the telescopic rod 52 and the transmission rope 532.

[0083] Here, in other embodiments, the telescopic motor 531 may be arranged at one end of the second rod 512 far from the first rod 511, so as to utilize the gravity of the telescopic motor 531 acting on the second rod 512, reducing the force difference on both sides of the main shaft 43, which can reduce the elastic force required by the spring mechanism 47 and reduce the number of tension springs used.

[0084] In another implementation manner of the telescopic drive mechanism, as Figure 15 shown, the telescopic drive mechanism includes an air pump 539 and an air pipe 536. The inner end of the telescopic rod 52 is in sealed cooperation with the inner wall of the rotating rod 51. One end of the second rod 512 far from the first rod 511 is communicated with the air pump 539 through the air pipe 536 to push the telescopic rod 52 to move by changing the air pressure between the inner end of the telescopic rod 52 and the rotating rod 51.

[0085] The air pump 539 delivers air into the second rod 512, which can push the telescopic rod 52 to extend; the air pump 539 compresses the air in the second rod 512, which can cause the telescopic rod 52 to move towards the second rod 512 and thus retract. The telescopic rod 52 is moved by using the air pressure change generated by the air pump 539. The air pipe 536 can be various types of flexible hoses, which are arranged inside the main shaft 43, or the inner cavity of the main shaft 43 is used as part of the air pipe, so as to utilize the hollow structure of the main shaft 43 to arrange the structure of the telescopic driving mechanism. The air pipe 536 can rotate together with the main shaft 43. The air pump 539 is arranged inside the machine shell 1, so that a relatively high-power air pump 539 can be arranged inside the machine shell 1.

[0086] It can be seen from the above two specific embodiments of the telescopic driving mechanism that at least part of the structure of the telescopic driving mechanism is arranged inside the main shaft 43 to make full use of the space inside the main shaft 43.

[0087] Combined with the license plate recognition barrier integrated machine provided in the second embodiment of the present invention, the present invention also correspondingly provides a control method for a license plate recognition barrier integrated machine, which includes the following steps.

[0088] Step S100, in the initial state, the gate rod 5 is in a horizontal position and in an unfolded state to close the driving lane.

[0089] Step S200, detect whether a vehicle is coming. If no vehicle is detected coming, the gate rod 5 remains in the same state. If a vehicle is detected coming, proceed to the next step.

[0090] Step S300, control the inner end of the telescopic rod 52 to move to the second rod 512, so that the gate rod 5 is in a retracted state, and at the same time, identify the license plate information of the vehicle.

[0091] In this step, a radar, a sensor, etc. can be set to detect whether a vehicle is coming, or the camera of the license plate recognition component 2 is used to detect the image screen to detect whether a vehicle is coming.

[0092] When a vehicle comes, the electronic control component 3 controls the telescopic driving mechanism to act, so that the inner end of the telescopic rod 52 moves to the second rod 512, so as to reduce the acting force of the gate rod 5 on the main shaft 43, thereby facilitating the rotation of the main shaft 43.

[0093] Step S400, after obtaining the license plate information, control the main shaft 43 to drive the gate rod 5 to rotate to a vertical position, and then open the driving lane.

[0094] After analyzing the vehicle image information, the license plate recognition component 2 extracts the license plate information. The license plate information is transmitted to the electronic control component 3 for vehicle registration or parking fee settlement. The electronic control component 3 controls the motor 42 to operate, and the main shaft 43 drives the gate rod 5 to rotate.

[0095] Step S500: After the vehicle passes through the license plate recognition barrier gate integrated machine, control the main shaft 43 to drive the barrier rod 5 to rotate to the horizontal position.

[0096] Step S600: Control the telescopic rod 52 to extend, so that the barrier rod 5 is in the extended state.

[0097] After the vehicle passes through the driving lane, the electric control component 3 is used to execute the operation of closing the driving lane. First, rotate the barrier rod 5 to the horizontal position, and then move the telescopic rod 52 to extend the barrier rod 5 to completely close the driving lane.

[0098] For the license plate recognition barrier gate integrated machine and its control method provided by the present invention, after the telescopic rod 52 retracts, the overall rotation of the barrier rod 5 is carried out, which can reduce the torque exerted by the barrier rod 5 on the main shaft 43, reduce the force of the motor 42, facilitate the rotation of the barrier rod 5, and further reduce the elastic force of the required spring mechanism 47 to reduce costs. The telescopic movement of the telescopic rod 52 is carried out under the horizontal position of the barrier rod 5, which can ensure the smoothness of the telescopic movement and improve the overall operation stability and reliability. The retraction action of the telescopic rod 52 is carried out simultaneously with the license plate information recognition, which can improve the passing efficiency.

[0099] In summary, although the present invention has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A license plate recognition barrier integrated machine, characterized in that: It includes a housing, a gate core assembly and a gate rod; the gate core assembly is arranged in the housing, and includes a support frame, a motor, a main shaft, an active arm and a buffer arm; The support frame includes a support plate and two bearing seats, the two bearing seats are fixed to the upper surface of the support plate and are respectively located at the two side edges of the support plate; the main shaft is a hollow circular tube structure and is connected to the two bearing seats by rotating around its own axis; one end of the main shaft extends outside the housing and is connected to the gate rod; The active arm and the buffer arm are arranged along the axial direction of the main shaft, and both are located between the two bearing seats; one end of the active arm is clamped on the outer periphery of the main shaft, and the other end is connected to the motor through a connecting rod mechanism; one end of the buffer arm is clamped on the outer periphery of the main shaft, and the other end is connected to a spring mechanism.

2. The license plate recognition barrier integrated machine according to claim 1, characterized in that: The two edges on the support plate adjacent to the bearing seat are first edges, and the two first edges are bent upward to form vertical plates; the two opposite edges on the support plate located between the two bearing seats are second edges, and the two second edges are fixedly connected to the casing.

3. The license plate recognition barrier integrated machine according to claim 1, characterized in that: The spring mechanism is located below the buffer arm, and the length direction of the buffer arm forms an acute angle with the length direction of the gate rod; when the gate rod rotates, the buffer arm is always located on the same side of the main shaft in the horizontal direction.

4. The license plate recognition barrier integrated machine according to claim 3, characterized in that: The main shaft is provided with keyways at positions corresponding to the buffer arm and the gate rod, and keys are provided in the keyways. The buffer arm and the gate rod are connected to the main shaft through the keys.

5. The license plate recognition barrier integrated machine according to claim 1, characterized in that: The gate core assembly further includes a sensor module, which is located between the buffer arm and the active arm in the axial direction of the main shaft; the buffer arm and the active arm are located on one side of the main shaft in the horizontal direction, and the sensor module is located on the other side of the main shaft in the horizontal direction; The sensing module includes a positioning plate, two sensors and two sensing sheets. The positioning plate is vertically fixed on the upper surface of the support plate. The two sensors are fixed on the positioning plate and arranged along the axial direction of the main shaft. The two sensing sheets are both arranged on the main shaft and respectively cooperate with the two sensors to detect the two position states of the gate rod.

6. The license plate recognition barrier integrated machine according to claim 1, characterized in that: The license plate recognition barrier integrated machine also includes a license plate recognition component and an electronic control component; The casing includes a shell and a door body, and the license plate recognition component, the gate core component and the electronic control component are arranged in the shell in sequence along the vertical direction; the door body is rotatably arranged in the shell, and its rotation axis is vertical; the top of the door body is higher than the license plate recognition component, and the bottom is lower than the electronic control component.

7. The license plate recognition barrier integrated machine according to claim 6, characterized in that: The door body is provided with an inner groove, which is arranged corresponding to the license plate recognition component and is recessed toward the inside of the casing; a light-transmitting plate is arranged in the inner groove, and the light-transmitting plate is arranged opposite to the notch of the inner groove, the top of the inner groove has a groove top wall, and the bottom has a groove bottom wall, and both the groove top wall and the groove bottom wall are inclined so as to gradually rise along the direction from the notch of the inner groove to the light-transmitting plate; a fan is arranged on the upper surface of the groove top wall, and the air outlet direction of the fan is toward the light-transmitting plate.

8. The vehicle license plate recognition barrier integrated machine according to any one of claims 1 to 7, characterized in that: The gate rod comprises a rotating rod, a telescopic rod and a telescopic driving mechanism; the rotating rod is a hollow structure, which is connected to the main shaft, and the parts of the rotating rod located on both sides of the main shaft are respectively a first rod and a second rod; The telescopic rod is sleeved in the rotating rod, and the telescopic driving mechanism is connected to the telescopic rod to drive the telescopic rod to move along the rotating rod; When the gate rod is rotated to a horizontal position, the telescopic rod can move along the rotating rod under the drive of the telescopic driving mechanism, so that the gate rod is switched between an extended state and a retracted state; When the gate rod is in an extended state, the outer end of the telescopic rod moves to the outside of the rotating rod, and the inner end of the telescopic rod is located at the first rod; when the gate rod is in a retracted state, the inner end of the telescopic rod moves to the second rod, and the gate rod can rotate under the drive of the gate core assembly.

9. The license plate recognition barrier integrated machine according to claim 8, characterized in that: At least part of the structure of the telescopic drive mechanism is arranged in the main shaft.

10. A control method for a license plate recognition barrier integrated machine, characterized in that: Using the license plate recognition barrier integrated machine according to claim 8 or 9, the control method comprises: In the initial state, the gate rod is in a horizontal position and in an unfolded state; Detect whether there is a vehicle approaching; if a vehicle is detected approaching, proceed to the next step; Controlling the inner end of the telescopic rod to move to the second rod, so that the gate rod is in a retracted state, and identifying the vehicle license plate information at the same time; After obtaining the license plate information, the main shaft is controlled to drive the gate lever to rotate to a vertical position; After the vehicle passes through the license plate recognition barrier integrated machine, the main shaft is controlled to drive the barrier rod to rotate to a horizontal position; The telescopic rod is controlled to extend so that the gate rod is in an extended state.

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