An unattended weighing scale system

Abstract

The present invention discloses an unattended weighbridge system, relating to the technical field of unattended weighbridges, and includes a weighbridge body and a weighbridge system for use when unattended. The weighbridge body includes a first mounting plate, a support plate, a weighing scale, and an extrusion plate. The weighbridge system includes an inlet infrared probe, an outlet infrared probe, a barrier, a controller located within a control box, a data transmission antenna, a controller, and a camera. The weighbridge system is communicatively connected to the controller, and the camera is an intelligent pan-tilt camera. The present invention, through the coordinated arrangement of a first drive mechanism, a retractable second mounting rod, and a second drive mechanism, enables the second mounting rod to rotate and also extend, thereby providing a more comprehensive view of the bottom and sides of a truck.

Description

Technical Field

[0001] The present invention relates to the technical field of unattended weighbridges, and more particularly to an unattended weighbridge system. Background Art

[0002] A floor scale, also known as a truck scale, is a large scale installed on the ground, usually used to weigh the tonnage of a truck. When a truck enters the weighing platform, the weight of the truck causes the elastic body of the weighing limit switch to deform elastically, causing the bridge impedance of the strain gauge attached to the elastic body to lose balance, and outputting an electrical signal proportional to the weight value. The output digital signal is processed by the amplifier, A / D converter, microprocessor and other electronic components inside the limit switch, and then enters the weighing display instrument through a repeater to directly display the weight and other data. If the display instrument is connected to a computer or printer, the instrument can also output the weight signal to the computer and other equipment at the same time, forming a complete weighing management system.

[0003] Chinese invention patent application number CN202010109700.X discloses an unmanned intelligent weighing system, comprising a mounting plate, support plates fixedly mounted on both the left and right sides of the mounting plate, an imported infrared probe fixedly mounted on the back of the top of the left support plate, a support rod fixedly mounted on the back of the top of the left support plate, and a camera fixedly mounted on the front of the support rod. Although this effectively achieves the goal of completing the load-bearing of port trucks without manual operation, saving human resources, the camera's observation angle in this unmanned intelligent weighing system is limited, and the bottom of the vehicle cannot be observed, making it impossible to detect whether the vehicle is tampered with during weighing.

[0004] Therefore, it is necessary to propose an unattended weighing system to solve the above problems. Summary of the Invention

[0005] (1) Technical problems solved

[0006] The purpose of the present invention is to solve the problem that in an unattended intelligent weighing system, the camera has a limited observation angle and cannot observe the bottom of the vehicle, and thus cannot detect whether there is any tampering at the bottom of the vehicle when it is weighed. The present invention provides an unattended weighing system.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0009] An unattended floor scale system includes a floor scale body and a floor scale system for use when unattended, the floor scale body including a first mounting plate, a support plate, a weighing scale and an extrusion plate, the floor scale system including an inlet infrared probe, an outlet infrared probe, a gate, a controller located inside a control box, a data transmission antenna, a controller and a camera, the floor scale system is communicatively connected to the controller, the camera is an intelligent pan-tilt camera, a mounting piece is rotatably provided on the ground near one side of the inlet infrared probe, the upper end of the mounting piece is rotatably connected to a first mounting rod, the first mounting rod is driven to rotate by a first driving mechanism, a second mounting rod for mounting the intelligent pan-tilt camera is telescopically provided on the first mounting rod, the intelligent pan-tilt camera is rotatably connected to the upper end of the second mounting rod, the intelligent pan-tilt camera is driven to rotate by a second driving mechanism, when the intelligent pan-tilt camera rotates to be perpendicular to the second mounting rod, the second driving mechanism will drive the intelligent pan-tilt camera to slide along the second mounting rod, when the intelligent pan-tilt camera rotates to be parallel to the second mounting rod, the second driving mechanism stops working, and the second driving mechanism and the first driving mechanism are both communicatively connected to the controller.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention can adjust the height of the intelligent pan-tilt camera by providing a retractable second mounting rod, thereby comprehensively observing the vehicle.

[0012] 2. The present invention can rotate the second mounting rod and extend it through the coordinated arrangement of the first driving mechanism, the retractable second mounting rod and the second driving mechanism, thereby taking more comprehensive photos of the bottom and sides of the truck.

[0013] 3. The present invention provides a rotatable mounting member, so that the angle of the mounting member can be adjusted, thereby preventing the vehicle from colliding with the second mounting rod when loading or unloading.

[0014] 4. The present invention can save human resources through the coordinated setting between the weighing scale body and the weighing scale system, making the weighing scale more mechanized, automated and intelligent during operation, and reducing the probability of accidents.

[0015] Furthermore, a mounting platform is fixedly connected to the ground near one side of the imported infrared probe, and the bottom of one end of the mounting piece is rotatably connected to the mounting platform.

[0016] Furthermore, the mounting platform is fan-shaped, one end of the mounting piece is rotatably connected to the central angle of the mounting platform, an arc-shaped groove is provided at the end of the mounting platform close to the arc, the lower end of the mounting piece is fixedly connected to a connecting block, and the connecting block slides in the arc-shaped groove, and the side of the mounting platform away from the floor scale is rotatably connected to a second cylinder, the output end of the second cylinder is rotatably connected to the side of the connecting block, and the second cylinder is communicatively connected to the controller.

[0017] Furthermore, the first driving mechanism is arranged on the mounting member, and the first driving mechanism drives the first mounting rod to rotate toward one side of the central angle of the mounting platform. The mounting member is an L-shaped plate with the short plate on top, and the first mounting rod is rotatably connected to the upper end of the short plate of the L-shaped plate, and the first driving mechanism is arranged on the long plate of the L-shaped plate.

[0018] Furthermore, a plurality of mounting columns are fixedly connected to the upper corners of the first mounting rod, the second mounting rod is slidably connected to the mounting columns, the side of the first mounting rod is fixedly connected to the first cylinder, and the output end of the first cylinder is fixedly connected to the side of the second mounting rod.

[0019] Furthermore, the cross section of the second mounting rod is U-shaped, and a circular groove is formed on the side surface of one end of the second mounting rod away from the first mounting rod, a rotating shaft is rotatably connected in the circular groove, and an outer circumferential surface of the rotating shaft located in the second mounting rod is fixedly connected to a mounting block, the intelligent pan-tilt camera is fixedly connected to the upper end of the mounting block, and the second driving mechanism drives the mounting block to rotate;

[0020] A through slot is formed on the second mounting rod at the lower end of the circular slot, and the rotating shaft includes a mounting shaft and a matching block. The matching block is rotatably connected to the circular slot. When the second driving mechanism drives the mounting block to rotate perpendicular to the second mounting rod, the side surface of the matching block is parallel to the side surface of the through slot.

[0021] The two opposite surfaces of the mating block are parallel planes, and the distance between the planes is consistent with the width of the through slot. When the smart pan-tilt camera is parallel to the second mounting rod, the planes are perpendicular to the second mounting rod, and the other two surfaces of the mating block are arc-shaped surfaces consistent with the diameter of the circular slot.

[0022] When the lever, having one end in pinned connection to the other end of the link, has a bottom end connected to the lever, and the other end connected to the bottom end of the link, so that the lever, having one end in pinned connection to the other end, can be retracted relative to the lever by the spring.

[0023] Furthermore, a power assist component is connected to one end of the connecting plate close to the limiting plate. When the positional relationship between the mounting block and the second mounting rod changes from vertical to parallel, the power assist component is used to support the connection plate and the limiting plate to rise at the hinge.

[0024] Furthermore, the power assist assembly includes a round rod, a second mounting plate and a spring, the round rod is inserted into one end of the connecting plate close to the limit plate, and the two ends of the round rod are fixedly connected to the second mounting plate, the spring is sleeved on the round rod on the side of the connecting plate facing away from the second mounting rod, and the two ends of the spring are respectively fixedly connected to the connecting plate on the side facing away from the second mounting rod and the second mounting plate, and a matching hole slightly larger than the second mounting plate is opened on the connecting plate facing one end of the second mounting rod.

[0025] Furthermore, a travel switch is provided on the side of the upper end of the second mounting rod facing away from the first cylinder, and the travel switch is communicated with the controller. When the mounting block is in contact with the side surface of the upper end of the second mounting rod, the travel switch is touched to stop the operation of the drive assembly.

[0026] In short, the present invention can monitor the surroundings and bottom of the vehicle more comprehensively. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a planar schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a three-dimensional schematic diagram of the connection structure of the first driving mechanism, the second mounting rod and the second driving machine in the present invention;

[0029] Figure 3 For the present invention Figure 2 A three-dimensional cross-sectional schematic diagram of the connecting structure;

[0030] Figure 4 For the present invention Figure 3A three-dimensional bottom-up schematic diagram of the connecting structure;

[0031] Figure 5 For the present invention Figure 2 A magnified schematic diagram of point A in the middle;

[0032] Figure 6 For the present invention Figure 3 A magnified schematic diagram of point B in the middle;

[0033] Figure 7 For the present invention Figure 3 Enlarged schematic diagram of point C in the middle.

[0034] Reference numerals: 1. first mounting plate; 2. support plate; 3. imported infrared probe; 4. mounting platform; 5. mounting member; 6. first motor; 7. first lead screw; 8. nut slider; 9. support rod; 10. transmission rod; 11. first mounting rod; 12. mounting column; 13. second mounting rod; 14. through groove; 15. circular groove; 16. matching block; 17. mounting block; 18. intelligent PTZ camera; 19. limit plate; 20. connecting plate; 21 , matching hole; 22, round rod; 23, second mounting plate; 24, spring; 25, mounting groove; 26, pull plate; 27, second screw; 28, second motor; 29, angle iron; 30, first cylinder; 31, connecting block; 32, arc groove; 33, second cylinder; 34, limit switch; 35, mounting shaft; 36, exit infrared probe; 37, connecting rod; 38, gate; 39, extrusion plate; 40, control box; 41, data transmission antenna. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1-7, an unattended weighing scale system, including a weighing scale body and a weighing scale system for unattended operation, the weighing scale body includes a first mounting plate 1, a support plate 2, a weighing scale and an extrusion plate 39, the weighing scale system includes an inlet infrared probe 3, an outlet infrared probe 36, a gate 38, a control box 40, a data transmission antenna 41, a controller and a camera, the gate 38 is installed on the connecting rod 37, and the weighing scale system is communicatively connected to the controller, and the electrical components, connection methods and working principles involved in the weighing scale body and the weighing scale system are consistent with the unattended intelligent weighing scale system disclosed in application number 202010109700.X. The camera is an intelligent pan-tilt camera 18, and a mounting part 5 is rotatably provided on the ground near the side of the inlet infrared probe 3, and the mounting part 5 The upper end is rotatably connected to a first mounting rod 11, and the first mounting rod 11 is driven to rotate by a first driving mechanism. A second mounting rod 13 for installing an intelligent pan-tilt camera 18 is retractably provided on the first mounting rod 11. The intelligent pan-tilt camera 18 is rotatably connected to the upper end of the second mounting rod 13, and the intelligent pan-tilt camera 18 is driven to rotate by the second driving mechanism. When the intelligent pan-tilt camera 18 rotates to be perpendicular to the second mounting rod 13, the second driving mechanism will drive the intelligent pan-tilt camera 18 to slide along the second mounting rod 13. The second driving mechanism drives the intelligent pan-tilt camera 18 to slide along the second mounting rod 13. When the installed intelligent pan-tilt camera 18 is rotated to be parallel to the second mounting rod 13, the second driving mechanism stops working, and the second driving mechanism and the first driving mechanism are both communicatively connected to the controller.

[0037] In this embodiment, during use, when the vehicle is bearing weight, the vehicle will first drive in from the left side to the top of the left support plate 2. At this time, the imported infrared probe 3 will sense that a vehicle has passed. At this time, the imported infrared probe 3 will send the information that a vehicle has passed to the controller. When the controller receives the vehicle information, it will start the power switch of the gate 38, and the gate 38 will open, so that the vehicle can drive in to the top of the first mounting plate 1. When the vehicle has completely entered the weighing scale, the receiving end of the imported infrared probe 3 can receive the signal from the transmitting end of the imported infrared probe, and the imported infrared probe 3 will send the signal to the controller. The controller controls the intelligent pan-tilt camera 18 to capture the appearance, height and bottom of the vehicle. First, the controller controls the first driving mechanism to start, so that the first mounting rod 11 rotates to a horizontal state along the hinge point with the mounting part 5. Secondly, the controller controls the start of the second driving mechanism to adjust the overall angle of the intelligent pan-tilt camera 18 so that the intelligent pan-tilt camera 18 After the platform camera 18 rotates to be perpendicular to the second mounting rod 13, the second driving mechanism can drive the intelligent pan-tilt camera 18 to slide, so that the intelligent pan-tilt camera 18 can observe the bottom and the periphery of the vehicle more comprehensively. When the second driving mechanism drives the intelligent pan-tilt camera 18 to return to being parallel to the second mounting rod 13, the second driving mechanism stops working. At this time, the controller controls the first driving mechanism to reset the second mounting rod 13. At the same time, the weighing scale will weigh the weight of the vehicle and send this weight information to the controller. When the controller receives the weight information of the vehicle, it will transmit it to the host computer through the data transmission antenna 41. The host computer is a mobile phone. When the mobile phone receives the weight information of the vehicle, the driver can drive the vehicle out of the scale, and when passing the exit infrared probe 36, the receiving end and the transmitting end of the exit infrared probe 36 will interrupt communication. At this time, the exit infrared probe 36 sends a signal to the controller, and the controller will issue a control command to control the reset of the barrier 38.

[0038] Specifically, refer to the attached manual Figure 1-4 As shown, a mounting platform 4 is fixedly connected to the ground near one side of the imported infrared probe 3, and the bottom of one end of the mounting member 5 is rotatably connected to the mounting platform 4. The mounting platform 4 is fan-shaped, and one end of the mounting member 5 is rotatably connected to the central angle of the mounting platform 4. An arc groove 32 is provided at one end of the mounting platform 4 near the arc, and the lower end of the mounting member 5 is fixedly connected to a connecting block 31. The connecting block 31 slides in the arc groove 32, and the end of the mounting platform 4 near the central angle is rotatably connected to a second cylinder 33. The output end of the second cylinder 33 is rotatably connected to the side of the connecting block 31, and the second cylinder 33 is communicatively connected to the controller. When the intelligent pan-tilt camera 18 detects that a vehicle enters the weighing scale, the controller controls the second cylinder 33 to retract. When the vehicle enters the weighing scale, the weighing scale sends a signal to the controller, and the controller controls the second cylinder 33 to extend.

[0039] In this embodiment, a rotatable mounting part 5 is provided. When the intelligent pan-tilt camera 18 detects that a vehicle has entered the weighing scale, the controller controls the second cylinder 33 to contract, so that the connecting block 31 at the lower end of the mounting part 5 slides in the arc groove 32, and then the mounting part 5 rotates along the central angle of the mounting platform 4, thereby increasing the angle between the mounting part 5 and the weighing scale. When the imported infrared probe 3 senses that the vehicle has completely entered the weighing scale, the controller controls the second cylinder 33 to extend, so that the mounting part 5 returns to its original position.

[0040] Specifically, refer to the attached manual Figure 1-4 As shown, the first driving mechanism is provided on the mounting member 5, and the first driving mechanism drives the first mounting rod 11 to rotate toward one side of the central angle of the mounting platform 4. The mounting member 5 is an L-shaped plate with the short plate on the upper side, and the first mounting rod 11 is rotatably connected to the upper end of the short plate of the L-shaped plate. The first driving mechanism is provided on the long plate of the L-shaped plate.

[0041] The first driving mechanism includes a first motor 6, a first lead screw 7, a nut slider 8 and a transmission rod 10. The first motor 6 is communicatively connected to the controller. A rectangular groove is provided on the long plate of the mounting member 5. The first lead screw 7 is rotatably connected to the long plate of the mounting member 5 on both sides of the rectangular groove. The first motor 6 is fixedly connected to the end of the long plate of the mounting member 5, and one end of the first lead screw 7 is fixedly connected to the output shaft of the first motor 6. The nut slider 8 is threadedly connected to the outer circumferential surface of the first lead screw 7, and the outer side surface of the nut slider 8 is fitted with the rectangular groove. The transmission rod 10 is rotatably connected to the middle part of the upper end surface of the nut slider 8, and the other end of the transmission rod 10 is rotatably connected to the outer side surface of the first mounting rod 11;

[0042] In this embodiment, the controller controls the forward rotation of the first motor 6, so that the first motor 6 drives the first screw 7 to rotate, and then drives the nut slider 8 to move toward one end of the first mounting rod 11. During the movement, the other end of the transmission rod 10 will support the first mounting rod 11 to rotate, so that the first mounting rod 11 gradually becomes parallel to the short plate of the mounting member 5. When the controller controls the reverse rotation of the first motor 6, the nut slider 8 moves in a direction away from the first mounting rod 11, and then the upper end of the first mounting rod 11 rotates toward one end of the first motor 6, thereby changing the position of the intelligent pan-tilt camera 18, so that the intelligent pan-tilt camera 18 can observe the bottom of the vehicle.

[0043] Specifically, refer to the attached manual Figure 1-4 As shown, the upper end of the nut slider 8 facing away from the short plate of the mounting member 5 is fixedly connected to a support rod 9. The height of the support rod 9 and the upper end of the horizontal plate of the mounting member 5 are both higher than the height of the upper end surface of the floor scale. When the first driving mechanism drives the first mounting rod 11 to rotate to a horizontal state, the second mounting rod 13 just falls on the upper end of the support rod 9.

[0044] In this embodiment, by setting the support rod 9, the inclination angle of the first mounting rod 11 can be limited, so that when the first mounting rod 11 is rotated to a horizontal state, the second mounting rod 13 is parallel to the floor scale, and the moving trajectory of the intelligent pan-tilt camera 18 is parallel to the floor scale, ensuring that the bottom of the vehicle on the floor scale can be observed.

[0045] Specifically, in conjunction with the accompanying drawings of the specification Figure 1-5 As shown, a plurality of mounting posts 12 are fixedly connected to the upper corners of the first mounting rod 11, and a second mounting rod 13 is slidably connected to the mounting posts 12. A first cylinder 30 is fixedly connected to the side of the first mounting rod 11 by bolts, and the output end of the first cylinder 30 is fixedly connected to the side of the second mounting rod 13;

[0046] In this embodiment, when the vehicle has completely entered the weighing scale, the receiving end of the imported infrared probe 3 can receive the signal, and the imported infrared probe 3 sends the signal to the controller. The controller first controls the extension of the first cylinder 30, and can control the first cylinder 30 separately, so that when the second mounting rod 13 is vertical to the ground, it drives the intelligent pan-tilt camera 18 to slide upward, first observing the top of the vehicle, and then the controller controls the first drive mechanism to start, and then controls the second drive mechanism to start, and then controls the first cylinder 30 to contract. After the contraction is completed, the controller controls the first drive mechanism to start, resets the intelligent pan-tilt camera 18, and controls the first cylinder 30 to contract at the same time, so that the intelligent pan-tilt camera 18 can shoot a wider range.

[0047] Specifically, refer to the attached manual Figure 1-4 As shown, the side of the first mounting rod 11 facing away from the transmission rod 10 is fixedly connected to an angle iron 29 by bolts, the lower end of the first cylinder 30 is fixedly connected to the upper end of the angle iron 29, and the middle part of the side of the second mounting rod 13 facing away from the transmission rod 10 is fixedly connected to a polygonal plate, and the output end of the first cylinder 30 is fixedly connected to the polygonal plate;

[0048] In this embodiment, by arranging the first cylinder 30 on the side facing away from the transmission rod 10 , interference with the second driving mechanism can be avoided, and interference with the first driving mechanism can also be avoided.

[0049] Specifically, refer to the attached manual Figure 1-5 As shown, the cross section of the second mounting rod 13 is U-shaped. A circular groove 15 is formed on the side surface of the end of the second mounting rod 13 away from the first mounting rod 11. A rotating shaft is rotatably connected to the circular groove 15. The outer circumferential surface of the rotating shaft located in the second mounting rod 13 is fixedly connected to a mounting block 17. The smart pan-tilt camera 18 is fixedly connected to the upper end of the mounting block 17. The second driving mechanism drives the mounting block 17 to rotate.

[0050] A through slot 14 is formed on the second mounting rod 13 at the lower end of the circular groove 15 and extends through the circular groove 15. The width of the through slot 14 is smaller than the diameter of the circular groove 15. The rotating shaft includes a mounting shaft 35 and a matching block 16. The matching block 16 is rotatably connected to the circular groove 15. When the second driving mechanism drives the mounting block 17 to rotate perpendicular to the second mounting rod 13, the side surface of the matching block 16 is parallel to the side surface of the through slot 14.

[0051] The two opposing surfaces of the mating block 16 are parallel planes, and the distance between the planes is consistent with the width of the through slot 14. When the smart pan-tilt camera 18 is parallel to the second mounting rod 13, the planes are perpendicular to the second mounting rod 13. The other two surfaces of the mating block 16 are arc-shaped surfaces with the same diameter as the circular slot 15.

[0052] In this embodiment, when the controller controls the second driving mechanism to drive the mounting block 17 to rotate, it will first drive the rotating shaft to rotate in the circular groove 15, so that the mounting block 17 is rotated until the second mounting rod 13 is vertical. At this time, the plane of the matching block 16 is just parallel to the side of the through groove 14, and then through further driving of the second driving mechanism, the matching block 16 can slide into the through groove 14. When the second driving mechanism drives the mounting block 17 to slide in the opposite direction, it first makes the matching block 16 slide from the through groove 14 into the circular groove 15, and then through the continuous driving of the second driving mechanism, the mounting block 17 is made parallel to the inner side surface of the second mounting rod 13.

[0053] Specifically, refer to the attached manual Figure 2-4 And attached Figure 6 and attached Figure 7 As shown, the second driving mechanism includes a connecting plate 20, a mounting slot 25, a pulling plate 26 and a driving assembly, the pulling plate 26 is in contact with the inner side surface of the second mounting rod 13, and the pulling plate 26 is driven to slide by the driving assembly, one end of the connecting plate 20 is rotatably connected to the pulling plate 26 toward one end of the mounting block 17, and the other end of the connecting plate 20 is rotatably connected to the limiting plate 19, and the limiting plate 19 is fixedly connected to the lower end of the mounting block 17. When the driving assembly drives the pulling plate 26 to slide toward the end facing away from the mounting block 17, the limiting plate 19 and the connecting plate 20 tend to be parallel, and finally the limiting plate 19 and the connecting plate 20 both fit the inner side surface of the second mounting rod 13. When the driving assembly drives the pulling plate 26 to slide toward one end of the mounting block 17, the limiting plate 19 and the inner side surface of the second mounting rod 13 tend to be perpendicular. When the mounting block 17 fits the upper end side surface of the second mounting rod 13, the limiting plate 19 and the second mounting rod 13 are in a perpendicular position.

[0054] In this embodiment, when the driving assembly drives the pull plate 26 to slide toward the end carrying the mounting block 17, the pull plate 26 will first be driven to pull the connecting plate 20, so that the connecting plate 20 tends to be parallel to the inner side of the second mounting rod 13, and at the same time, the limit plate 19 will be driven to be parallel to the inner side of the second mounting rod 13, and finally the limit plate 19 will be parallel to the connecting plate 20. At this time, the side of the matching block 16 is parallel to the side of the through groove 14. As the driving assembly continues to drive, the matching block 16 is driven to slide into the through groove 14. When the driving assembly drives the pull plate 26 to slide toward one end of the mounting block 17, the pull plate 26 first pushes the connecting plate 20 and the limit plate 19 to slide along the inner surface of the second mounting rod 13. When the mating block 16 slides into the circular groove 15, the connecting plate 20 will push the limit plate 19, causing the hinge between the connecting plate 20 and the limit plate 19 to rise, and then the connecting plate 20 pushes the mounting block 17 to rotate until the side of the mating block 16 is parallel to the through groove 14, that is, the mounting block 17 is parallel to the second mounting rod 13.

[0055] Specifically, refer to the attached manual Figure 2-4 And attached Figure 7 As shown, the drive assembly includes a second lead screw 27 and a second motor 28. A mounting groove 25 is opened on the side of the second mounting rod 13 facing away from the first cylinder 30. The mounting groove 25 is divided into a rectangular groove and a square groove. The second motor 28 is fixedly connected to the second mounting rod 13 at the lower end of the square groove by bolts. One end of the second lead screw 27 is fixedly connected to the output shaft of the second motor 28, and the other end of the second lead screw 27 is rotatably connected to the second mounting rod 13 at the upper end of the rectangular groove. The pull plate 26 is threadedly connected to the outer peripheral surface of the second lead screw 27, and the side surface of the pull plate 26 fits the mounting groove 25. The second motor 28 is communicatively connected to the controller;

[0056] In this embodiment, the controller controls the second motor 28 to rotate forward, thereby causing the second lead screw 27 to drive the pull plate 26 away from the mounting block 17 and slide along the mounting groove 25, so that the pull plate 26 pulls the connecting plate 20. When the controller controls the second motor 28 to rotate in the reverse direction, the second lead screw 27 drives the pull plate 26 toward the mounting block 17 and slides along the mounting groove 25, so that the pull plate 26 pushes the connecting plate 20.

[0057] Specifically, refer to the attached manual Figure 6 As shown, a power assist assembly is connected to one end of the connecting plate 20 near the limiting plate 19. When the positional relationship between the mounting block 17 and the second mounting rod 13 changes from vertical to parallel, the power assist assembly is used to support the connection plate 20 and the limiting plate 19 at the hinge to rise.

[0058] The power assist assembly includes a round rod 22, a second mounting plate 23 and a spring 24. The round rod 22 is inserted into the end of the connecting plate 20 close to the limit plate 19. The two ends of the round rod 22 are fixedly connected to the second mounting plate 23 by threads. The spring 24 is sleeved on the round rod 22 on the side of the connecting plate 20 facing away from the second mounting rod 13, and the two ends of the spring 24 are respectively fixedly connected to the connecting plate 20 and the second mounting plate 23 on the side facing away from the second mounting rod 13. Figure 6 The spring 24 is shown in a normal state. The connecting plate 20 facing the end of the second mounting rod 13 is provided with a mating hole 21 that is slightly larger than the second mounting plate 23. The depth of the mating hole 21 is greater than the thickness of the second mounting plate 23.

[0059] In this embodiment, when the controller controls the second motor 28 to rotate forward, as the connecting plate 20 gradually becomes parallel to the inner side surface of the second mounting rod 13, the connecting plate 20 will press the second mounting plate 23 facing the inner side surface of the second mounting rod 13 into the matching hole 21. At the same time, the second mounting plate 23 facing away from the inner side surface of the second mounting rod 13 will stretch the spring 24 until the connecting plate 20 is parallel to the limit plate 19. When the controller controls the second motor 28 to rotate in the opposite direction, when the pulling plate 26 pushes the connecting plate 20 to make the matching block 16 enter the circular groove 15, since the matching block 16 can rotate in the circular groove 15, the limit plate 19 can rotate at this time. At this time, the spring 24 will contract and reset, so that the second mounting plate 23 facing the inner side surface of the second mounting rod 13 supports the second mounting rod 13, supporting the hinge between the connecting plate 20 and the limit plate 19.

[0060] Specifically, refer to the attached manual Figure 5 As shown, a limit switch 34 is provided on the side of the upper end of the second mounting rod 13 facing away from the first cylinder 30, and the limit switch 34 is communicated with the controller. When the mounting block 17 is in contact with the side surface of the upper end of the second mounting rod 13, the limit switch 34 is touched to stop the operation of the drive assembly.

[0061] The working process of the technical solution provided by the present invention is as follows: when a vehicle enters from the left side of the weighing system to the top of the left support plate 2, the intelligent pan-tilt camera 18 captures the vehicle entering, and the controller receives the signal captured by the intelligent pan-tilt camera 18. It first controls the contraction of the second cylinder 33 to drive the mounting part 5 to rotate. When the vehicle passes the imported infrared probe 3 (at this time, the receiving end of the imported infrared probe 3 will not be able to receive the signal emitted by the transmitting end, and the controller will receive the information that the receiving end cannot receive the signal emitted by the transmitting end), the controller receives the signal fed back by the imported infrared probe 3. , the controller first controls the extension of the second cylinder 33 to drive the mounting member 5 to reset, and then controls the extension of the first cylinder 30 to drive the intelligent pan-tilt camera 18 to rise. After the intelligent pan-tilt camera 18 rises to the highest point, it takes a picture of the top of the vehicle; after the vehicle has completely entered the weighing system, the infrared probe 3 detects that the vehicle has completely entered (at this time, the receiving end of the infrared probe 3 will receive the signal emitted by the transmitting end again). After the controller receives the information fed back by the infrared probe 3 again, the controller controls the first motor 6 to rotate and drive the first mounting rod 11 to rotate at its hinge point with the mounting member 5. When the first After the mounting rod 11 and the second mounting rod 13 are level, the first motor 6 stops running, and then the controller controls the second motor 28 to start, first adjusting the smart pan-tilt camera 18 to be perpendicular to the second mounting rod 13. During the continued operation of the second motor 28, the smart pan-tilt camera 18 will move along the second mounting rod 13 toward the direction of the first mounting rod 11. When the second motor 28 drives the pull plate to move to the connection between the second lead screw 27 and the second motor 28, the second motor 28 stops running, and then the controller controls the first cylinder 30 to contract, and together drive the smart pan-tilt camera 18 toward the first mounting rod 11 moves to take a picture of the bottom of the vehicle at the end of the first mounting rod 11. At this time, the image capture of the bottom of the vehicle is completed. When the first cylinder 30 is fully retracted and the second motor 28 stops running, the controller controls the first motor 6 and the second motor 28 to rotate in opposite directions, driving the second mounting rod 13 and the first mounting rod 11 to a state perpendicular to the ground. At the same time, the second motor 28 drives the pan-tilt camera 18 to move toward the end of the second mounting rod 13. After the matching block 16 slides to the circular groove 15, the intelligent pan-tilt camera 18 returns to its initial state during the rotation of the second drive motor 28.

[0062] The components in the floor scale system mentioned in this embodiment, as well as the first motor 6, the second motor 28, the first cylinder 30, the second cylinder 33, and the limit switch 34, all use electrical components in the existing technology. The first motor 6 and the second motor 28 use stepper motors, and the specific models are selected based on the actual installation environment.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or apparatus that includes the elements.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention should also be included in the scope of protection of the present invention.

Claims

1. An unattended weighbridge system, comprising a weighbridge body and a weighbridge system for use when unattended, wherein the weighbridge body comprises a first mounting plate, a support plate, a weighing scale, and an extrusion plate; the weighbridge system comprises an inlet infrared probe, an outlet infrared probe, a barrier, a controller located within a control box, a data transmission antenna, and a camera; the weighbridge system is communicatively connected to the controller, and is characterized in that: The camera is an intelligent pan-tilt camera, and a mounting piece is rotatably provided on the ground near one side of the imported infrared probe, the upper end of the mounting piece is rotatably connected to a first mounting rod, the first mounting rod is driven to rotate by a first driving mechanism, and a second mounting rod for mounting the intelligent pan-tilt camera is telescopically provided on the first mounting rod, the intelligent pan-tilt camera is rotatably connected to the upper end of the second mounting rod, and the intelligent pan-tilt camera is driven to rotate by a second driving mechanism, when the intelligent pan-tilt camera is rotated to be perpendicular to the second mounting rod, the second driving mechanism will drive the intelligent pan-tilt camera to slide along the second mounting rod, and when the intelligent pan-tilt camera is rotated to be parallel to the second mounting rod, the second driving mechanism stops working, and the second driving mechanism and the first driving mechanism are both communicatively connected to the controller; A mounting platform is fixedly connected to the ground near one side of the imported infrared probe, and the bottom of one end of the mounting piece is rotatably connected to the mounting platform; The mounting platform is fan-shaped, one end of the mounting member is rotatably connected to the central angle of the mounting platform, an arc-shaped groove is provided at one end of the mounting platform close to the arc, a connecting block is fixedly connected to the lower end of the mounting member, and the connecting block slides in the arc-shaped groove, a second cylinder is rotatably connected to the side of the mounting platform away from the floor scale, an output end of the second cylinder is rotatably connected to the side of the connecting block, and the second cylinder is communicatively connected to the controller; The upper corner of the first mounting rod is fixedly connected to a plurality of mounting columns, the second mounting rod is slidably connected to the mounting columns, the side of the first mounting rod is fixedly connected to a first cylinder, and the output end of the first cylinder is fixedly connected to the side of the second mounting rod.

2. The unattended weighing system according to claim 1, characterized in that: The first driving mechanism is arranged on the mounting member, and the first driving mechanism drives the first mounting rod to rotate toward one side of the central angle of the mounting platform. The mounting member is an L-shaped plate with the short plate on top, and the first mounting rod is rotatably connected to the upper end of the short plate of the L-shaped plate. The first driving mechanism is arranged on the long plate of the L-shaped plate.

3. The unattended weighing system according to claim 2, characterized in that: The cross section of the second mounting rod is U-shaped, and a circular groove is formed on the side surface of one end of the second mounting rod away from the first mounting rod. A rotating shaft is rotatably connected to the circular groove, and a mounting block is fixedly connected to the outer circumference of the rotating shaft located in the second mounting rod. The smart pan-tilt camera is fixedly connected to the upper end of the mounting block, and the second driving mechanism drives the mounting block to rotate; A through slot is formed on the second mounting rod at the lower end of the circular slot, and the rotating shaft includes a mounting shaft and a matching block. The matching block is rotatably connected to the circular slot. When the second driving mechanism drives the mounting block to rotate perpendicular to the second mounting rod, the side surface of the matching block is parallel to the side surface of the through slot. The two opposite surfaces of the mating block are parallel planes, and the distance between the planes is consistent with the width of the through slot. When the smart pan-tilt camera is parallel to the second mounting rod, the planes are perpendicular to the second mounting rod, and the other two surfaces of the mating block are arc-shaped surfaces consistent with the diameter of the circular slot.

4. The unattended weighing system according to claim 3, characterized in that: When the driving assembly drives the pull plate to slide toward one end of the mounting block, the limit plate and the connecting plate tend to be parallel, and finally the limit plate and the connecting plate both tend to fit the inner side surface of the second mounting rod. When the driving assembly drives the pull plate to slide toward one end of the mounting block, the limit plate and the inner side surface of the second mounting rod tend to be perpendicular, and when the mounting block fits the side surface of the upper end of the second mounting rod, the limit plate and the second mounting rod are perpendicular.

5. The unattended weighing system according to claim 4, characterized in that: The end of the connecting plate close to the limiting plate is connected with a power assist component. When the positional relationship between the mounting block and the second mounting rod changes from vertical to parallel, the power assist component is used to support the connection plate and the limiting plate to rise at the hinge.

6. The unattended weighing system according to claim 5, characterized in that: The power assist assembly includes a round rod, a second mounting plate and a spring, the round rod is inserted into one end of the connecting plate close to the limit plate, and the two ends of the round rod are fixedly connected to the second mounting plate, the spring is sleeved on the round rod on the side of the connecting plate facing away from the second mounting rod, and the two ends of the spring are respectively fixedly connected to the connecting plate on the side facing away from the second mounting rod and the second mounting plate, and a matching hole slightly larger than the second mounting plate is opened on the connecting plate facing one end of the second mounting rod.

7. The unattended weighing system according to claim 6, characterized in that: A travel switch connected to the controller is provided on the side of the upper end of the second mounting rod facing away from the first cylinder. The travel switch is connected to the controller, and when the mounting block is in contact with the side surface of the upper end of the second mounting rod, the travel switch is touched to stop the driving assembly.

Images