Intelligent wagon balance system based on Internet of Things technology

Abstract

The invention discloses an intelligent wagon balance system based on the Internet of Things technology, and the system comprises a wagon balance main body which is sequentially provided with a water injection cavity and a movable cavity from the top surface downwards, the size of the water injection cavity is larger than that of the movable cavity, and a water injection opening in the side surface of the water injection cavity is communicated with a water pump; the weighing sensor and the auxiliary lifting mechanism are uniformly distributed at the bottom of the water injection cavity; the weighing platform is slidably arranged at the top of the water injection cavity and in the movable cavity, and the side wall of the weighing platform tightly abuts against the side face of the movable cavity; the vehicle sensing mechanism, the water pump, the weighing sensor, the auxiliary lifting mechanism and the vehicle sensing mechanism are wirelessly associated with the wagon balance central control system through the Internet; during use, water is pumped into the water injection cavity or pumped out of the water injection cavity, so that the weighing platform floats in the water injection cavity and the movable cavity or naturally sinks to be in butt joint with the weighing sensor. The problems that when an existing wagon balance is used, a weighing platform and a weighing sensor are prone to being damaged, the weighing behavior which is not standard and inconvenient to perceive exists, and the weighing efficiency and the weighing precision are reduced can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet of Things operating systems, and in particular to an intelligent weighing scale system based on Internet of Things technology. Background Art

[0002] With the development of wireless and remote control technologies, the Internet of Things technology has been applied to various fields and systems, but it is rarely used in the weighbridge systems used to measure the load of transport vehicles. Weighbridges, also known as truck scales, are large scales installed on the ground, usually used to weigh the tonnage of cargo on transport vehicles. There are two installation methods for weighbridges: shallow pit installation and pitless installation. Shallow pit installation means the weighbridge is buried underground, while pitless installation means the weighbridge is laid out on the ground, and slopes are generally laid out at both ends. The main principle of the weighbridge is to install weighing sensors such as pressure sensors between the base and the weighing platform. When the vehicle moves to and stops on the weighing platform, the vehicle can be weighed.

[0003] Currently, most weighing scales require operators to operate them according to procedures, which is not intelligent enough and has low weighing efficiency. Conventional weighing scales directly fix the pressure sensor on the base, and the top of the pressure sensor is directly connected to the scale platform. When a vehicle drives onto the scale platform for weighing, the front wheels of the vehicle move onto the scale platform first, which will instantly put pressure on the edge of the scale platform, damaging its own structure and the connection with the pressure sensor. After repeated weighing at different ambient temperatures, the pressure sensor is subjected to multiple cycles of sudden changes in force and is affected by the external temperature, which can easily damage its own structure, reducing its service life and measurement accuracy. In addition, during actual use of the weighing scale, there are irregular behaviors such as drivers not driving the vehicle to be weighed onto the scale platform, resulting in underweight, affecting the normal use of the weighing scale. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent floor scale system based on Internet of Things technology in order to solve the problem that the weighing platform and weighing sensors are easily damaged when using existing floor scales, and there are irregular and difficult-to-detect weighing behaviors, which reduce weighing efficiency and weighing accuracy.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: an intelligent weighing scale system based on Internet of Things technology, comprising:

[0006] The scale body has slopes on both sides, and a water injection cavity is provided therein. The top of the water injection cavity extends to the top surface of the scale body through the movable cavity. The size of the water injection cavity is larger than that of the movable cavity. The scale body is provided with a plurality of water injection ports on the side of the water injection cavity. The water injection ports are connected to the water pump through the outer water injection tank.

[0007] A weighing sensor is arranged at the bottom of the water injection chamber;

[0008] A weighing platform is slidably arranged on the top of the water injection cavity and in the movable cavity, and its side wall is tightly abutted against the side of the movable cavity;

[0009] an auxiliary lifting mechanism, which is arranged at the bottom of the water injection chamber and is used to drive the weighing platform to rise;

[0010] A vehicle sensing mechanism, which is used to sense various parameters of the vehicle to be weighed, and is wirelessly connected to the water pump, weighing sensor, auxiliary lifting mechanism, and vehicle sensing mechanism via the Internet to the scale central control system;

[0011] The water pump pumps water into the water injection cavity or draws water out from the water injection cavity, so that the weighing platform floats in the water injection cavity, the movable cavity or sinks naturally and docks with the weighing sensor.

[0012] As a further description of the above technical solution:

[0013] Several water-isolating structures are arranged in the water injection cavity, and the water-isolating structures include a lower tube and an upper tube. The lower tube is positioned on the bottom surface of the water injection cavity, and the upper tube is positioned on the bottom surface of the weighing platform. The upper tube can be vertically slidably sleeved or plugged into the lower tube. The weighing sensor and the auxiliary lifting mechanism are both arranged in the lower tube. The top of the weighing sensor extends to the outside of the lower tube, and a waterproof cover is arranged between the lower tube and the upper tube.

[0014] As a further description of the above technical solution:

[0015] The auxiliary lifting mechanism includes a lifting drive device and a top plate connected to the output end of the lifting drive device.

[0016] As a further description of the above technical solution:

[0017] A water level sensor is provided at the bottom of the weighing platform, and the water level sensor is associated with the central control system of the weighing scale.

[0018] As a further description of the above technical solution:

[0019] A speed bump is provided on the top of the scale body on the outer side of the scale platform.

[0020] As a further description of the above technical solution:

[0021] The speed bump is driven to slide on the top of the scale body by a guide mechanism, a wedge-shaped surface is provided on the side facing the scale entrance, and a first curved surface is provided on the other side that gradually retracts inward from top to bottom. The top edge of the weighing platform is provided with a second curved surface that gradually retracts inward from bottom to top, and the guide mechanism is associated with the central control system of the scale.

[0022] As a further description of the above technical solution:

[0023] The guide mechanism includes a telescopic component, a connecting plate and a driving component. The telescopic component is connected to the end of the speed bump, and is connected to the driving component in the installation groove on the side of the floor scale body through the connecting plate.

[0024] As a further description of the above technical solution:

[0025] The telescopic assembly includes a rod body and a sleeve. The rod body is positioned on the connecting plate, and the top of the rod body is inserted into the inner cavity of the sleeve. An elastic member is arranged between the rod body and the sleeve.

[0026] As a further description of the above technical solution:

[0027] The outer inner wall of the mounting groove is provided with a plurality of convex ribs extending parallel to the sliding direction of the connecting plate and having an arc-shaped or wavy surface, and the convex ribs abut against the surface of the connecting plate.

[0028] As a further description of the above technical solution:

[0029] The drive assembly includes a sprocket seat, a chain, and a rotary drive device. At least two sprocket seat axes are horizontally positioned on the inner side of the mounting groove, and sprockets are rotatably arranged thereon. The sprockets are engaged with the links of the chain. The output end of the rotary drive device is connected to the sprockets. Several sprockets are integrally arranged along their axial directions. Several groups of chains are arranged in parallel, and the corresponding links on adjacent chains are connected and connected through connecting blocks.

[0030] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0031] 1. The intelligent weighing scale system of the present invention is based on the Internet of Things operating system, which wirelessly connects each device and weighing scale module with the weighing scale central control system through the Internet. When in use, the vehicle-mounted system of the vehicle to be weighed is connected with the weighing scale system through the controller next to the weighing scale body or the mobile phone or through Bluetooth, so as to realize the self-service operation of the above-mentioned weighing process, realize fully controllable automatic weighing, improve weighing efficiency, standardize the use of weighing scales, and extend the service life of the equipment. Before weighing, water is poured into the water filling chamber so that the scale platform floats up due to buoyancy, and its top surface is exposed from the main body of the scale; the vehicle drives from the slope on one side to the top surface of the main body of the scale, and the exposed scale platform can slow it down. When the wheels press over the edge of the scale platform and the vehicle moves onto it as a whole, the scale platform is pressed down. At this time, the scale platform is not connected to the weighing sensor; after that, the water in the water filling chamber is pumped out, so that the scale platform and the vehicle to be weighed move down together with the liquid level drop until the scale platform connects to the weighing sensor. Thus, by laying the scale platform on the water body and lowering the liquid level after the vehicle is docked, the scale platform and the weighing sensor are gradually connected and the vehicle is weighed, avoiding the structure of the scale platform and the weighing sensor on the conventional scale being directly connected, which causes the edge of the scale platform to be pressed when the vehicle enters and exits. The sudden change in pressure on the weighing sensor may cause damage to both of them, and the above-mentioned equipment is arranged in the water body, which can realize the heat preservation function, so that the equipment can operate at a suitable temperature, ensure the normal operation of the equipment, and increase its service life. At this time, the scale platform as a whole is lower than the top surface of the scale body. If the vehicle is not completely stopped in the scale platform, the vehicle will be tilted as a whole, thereby avoiding irregular weighing behavior to ensure that the weighing value is reasonable; finally, water is pumped into the water injection chamber, and the lifting drive equipment lifts the scale platform to make it float, and its top surface is flush with the top surface of the scale body again. At this time, the vehicle can leave the scale. During this period, the reasonable driving or parking process of the vehicle is informed to the driver through the vehicle sensing mechanism to ensure the reasonable and orderly use of the scale.

[0032] 2. A water level sensor is installed at the bottom of the weighing platform. The water level sensor is used to measure and obtain the mass of the vehicle, enabling multiple weighing methods. The results obtained are cross-checked to ensure the weighing accuracy of the weighing sensor and the weighing accuracy of the scale. It also displays the use of inaccurate weighing sensors so that the scale can be adjusted and maintained in a timely manner.

[0033] 3. The speed bump, combined with the floating scale platform, achieves a two-stage vehicle deceleration effect. The wedge-shaped surface and the second curved surface block and guide the wheels of passing vehicles upward to achieve the appropriate deceleration effect. The movable design of the speed bump allows for the removal of impurities from the scale body and the top of the scale platform, improving the cleanliness and stability of the scale. The two curved surfaces guide the structure as the speed bump moves onto the scale platform or off its edge, improving the stability of the docking structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a side view of a smart weighing system based on Internet of Things technology.

[0036] Figure 2 This is a structural diagram of a weighing sensor in an intelligent floor scale system based on Internet of Things technology.

[0037] Figure 3 This is a structural diagram of the auxiliary lifting mechanism in an intelligent floor scale system based on Internet of Things technology.

[0038] Figure 4 This is a structural diagram of an intelligent weighing scale system based on Internet of Things technology in use status one.

[0039] Figure 5 This is a structural diagram of an intelligent weighing scale system based on Internet of Things technology in use state two.

[0040] Figure 6 This is a structural diagram of an intelligent weighing scale system based on Internet of Things technology in use state three.

[0041] Figure 7 This is a structural diagram of an intelligent weighing scale system based on Internet of Things technology in the fourth use state.

[0042] Figure 8 The main image of an intelligent weighing system based on Internet of Things technology Figure 1 .

[0043] Figure 9 The main image of an intelligent weighing system based on Internet of Things technology Figure 2 .

[0044] Figure 10 A cross-sectional view of a telescopic component in an intelligent floor scale system based on Internet of Things technology.

[0045] Figure 11 for Figure 1 Enlarged view of point A in the middle.

[0046] Legend:

[0047] 1. Scale body; 2. Slope; 3. Water filling chamber; 4. Movable chamber; 5. Water filling port; 6. Water filling tank; 7. Weighing sensor; 8. Weighing platform; 9. Auxiliary lifting mechanism; 10. Vehicle sensing mechanism; 11. Waterproof structure; 12. Lower tube; 13. Upper tube; 14. Waterproof cover; 15. Top plate; 16. Speed ​​bump; 17. Guide mechanism; 18. Wedge surface; 19. First curved surface; 20. Second curved surface; 21. Telescopic assembly; 22. Connecting plate; 23. Mounting groove; 24. Rod body; 25. Sleeve; 26. Elastic member; 27. Rib; 28. Sprocket seat; 29. ​​Chain; 30. Rotating drive device; 31. Connecting block; 100. Vehicle to be weighed. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in the subsequent drawings.

[0051] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are orientations or positional relationships in which the inventive product is usually placed when in use. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0052] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0053] Example 1:

[0054] See also Figure 1-11 The present invention provides a technical solution: an intelligent weighing scale system based on Internet of Things technology, comprising:

[0055] The scale body 1 has slopes 2 on both sides, in which a water injection chamber 3 is provided. The top of the water injection chamber 3 extends to the top surface of the scale body 1 through an active chamber 4. The size of the water injection chamber 3 is larger than that of the active chamber 4. The scale body 1 is provided with a plurality of water injection ports 5 on the side of the water injection chamber 3. The water injection ports 5 are connected to the water pump through an external water injection tank 6.

[0056] A weighing sensor 7 is arranged at the bottom of the water injection chamber 3; wherein the weighing sensor 7 is a device used for docking a weighing platform on a conventional floor scale to achieve weighing of vehicles, etc.;

[0057] The weighing platform 8 is slidably arranged at the top of the water injection chamber 3 and in the movable chamber 4, with its side walls tightly abutting against the side surfaces of the movable chamber 4. When in use, the weighing platform 8 is guided by the movable chamber 4 and can only move vertically, and the upper and lower dead points of its moving range are docked with the movable chamber 4 to prevent the weighing platform 8 from shaking or even tipping over.

[0058] an auxiliary lifting mechanism 9, which is provided at the bottom of the water injection chamber 3 and is used to drive the weighing platform 8 to rise;

[0059] The vehicle sensing mechanism 10 is used to sense various parameters of the vehicle 100 to be weighed. The vehicle sensing mechanism 10 is wirelessly connected to the water pump, the weighing sensor 7, the auxiliary lifting mechanism 9, and the vehicle sensing mechanism 10 via the Internet to the scale central control system. The mechanism is used to sense the speed and other parameters of the vehicle 100 to be weighed when it is traveling within the scale range, so as to automatically remind the driver to drive in a normal manner and park at an appropriate position on the scale platform 8;

[0060] The water pump pumps water into the water injection chamber 3 or draws water out of the water injection chamber 3 , so that the weighing platform 8 floats in the water injection chamber 3 and the movable chamber 4 or sinks naturally and docks with the weighing sensor 7 .

[0061] Several water-proof structures 11 are arranged in the water injection chamber 3. The water-proof structures 11 include a lower tube 12 and an upper tube 13. The lower tube 12 is positioned on the bottom surface of the water injection chamber 3, and the upper tube 13 is positioned on the bottom surface of the weighing platform 8. The upper tube 13 can be vertically slidably sleeved or plugged into the lower tube 12. The weighing sensor 7 and the auxiliary lifting mechanism 9 are both arranged in the lower tube 12. The top of the weighing sensor 7 extends to the outside of the lower tube 12. A waterproof cover 14 is provided between the lower tube 12 and the upper tube 13. This realizes the waterproof arrangement of the weighing sensor 7 and the auxiliary lifting mechanism 9, and facilitates their docking with the weighing platform 8 to realize the functions of weighing and lifting. In addition, the lower tube 12 and the upper tube 13 can cooperate with the movable chamber 4 to guide the vertical movement of the weighing platform 8 to prevent the weighing platform 8 from shaking or even tipping over when the vehicle is parked or moved on it. The waterproof cover 14 is arranged in the gap between the outer side of the lower tube 12 and the inner side of the upper tube 13 to isolate the structure from the internal and external environments and prevent water from penetrating and contaminating the internal equipment.

[0062] The auxiliary lifting mechanism 9 includes a lifting drive device and a top plate 15 connected to the output end of the lifting drive device to ensure stable connection with the scale platform 8 and achieve efficient lifting. The lifting drive device can be a hydraulic cylinder, an electric cylinder, a pneumatic cylinder or other lifting drive mechanisms or equipment.

[0063] The working principle of the intelligent weighing system based on Internet of Things technology of this embodiment includes: when a vehicle needs to enter the weighing system for weighing, the water pump injects water into the water injection cavity 3 through the water injection tank 6 and the water injection port 5, so that the weighing platform 8 floats up under the action of buoyancy, and its top surface is exposed to the weighing body 1, as shown in the figure. Figure 4 As shown in the system usage status 1 given in the figure; the vehicle 100 to be weighed travels from the slope 2 on one side to the top surface of the scale body 1, and the exposed weighing platform 8 can slow it down. When the wheel presses over the edge of the weighing platform 8 and the vehicle moves onto it as a whole, the weighing platform 8 is pressed down, and the lower tube 12 and the upper tube 13 cooperate with the active cavity 4 to guide the vertical movement of the weighing platform 8 to prevent it from tipping over. At this time, the weighing platform 8 is not connected to the weighing sensor 7, as shown in the figure. Figure 5After the vehicle has stopped, the water level is lowered to 0.01mm, and the vehicle is weighed. The vehicle is then weighed. The vehicle is then weighed. Figure 6 Finally, the water pump pumps water into the water injection chamber 3, and the lifting drive device drives the top plate 15 (a jack can also be used) to lift the weighing platform 8, so that it floats up, and its top surface is flush with the top surface of the floor scale body 1 again. At this time, the vehicle can leave the floor scale, as shown in the following figure. Figure 7 As shown in the system usage status 4 given in the figure, during this period, the reasonable driving or parking process of the vehicle is notified to the driver through the vehicle sensing mechanism 10, ensuring the reasonable and orderly use of the scale. This intelligent scale system is based on the Internet of Things operating system, which wirelessly connects each device and scale module with the scale central control system through the Internet. When in use, the on-board system of the vehicle to be weighed 100 is connected to the scale system through the controller next to the scale body 1 or the mobile phone or through Bluetooth, so as to realize the self-service operation of the above-mentioned weighing process, realize fully controllable automatic weighing, improve weighing efficiency, standardize the use of the scale, and increase the service life of the equipment.

[0064] Example 2:

[0065] See also Figure 1 、 4-7. Based on the above embodiment 1, preferably, a water level sensor is provided at the bottom of the weighing platform 8, and the water level sensor is associated with the central control system of the scale. The water level sensor can sense the hydraulic pressure of the weighing platform 8 when it is immersed in water to different degrees, that is, it is reflected as the height change from the bottom of the weighing platform 8 to the liquid surface, and based on the model of the weighing platform 8, it calculates the volume change of the weighing platform 8 immersed in the water before and after the vehicle moves onto the weighing platform 8, that is, it is reflected as the volume of water displaced in two time periods, and then the buoyancy change of the weighing platform 8 can be calculated, thereby converting the mass of the vehicle to achieve multiple weighing methods, and the results obtained are mutually verified to ensure the weighing accuracy of the weighing sensor 7, ensure the weighing accuracy of the scale, and display the use of the weighing sensor 7 inaccurate measurement, so as to adjust and maintain the scale in time. In order to ensure the accuracy of the liquid level measurement in this embodiment, the liquid level can be monitored by a scanning device to correct the liquid level result when the liquid level is unstable to a reasonable value. The measurement of the vehicle mass can also be achieved based on other types of water level sensors. The numerical value obtained by this method has low accuracy. Generally, it is only used to monitor the operation of the weighing sensor 7. When the difference between the values ​​measured by the two is large, it is determined that the weighing sensor 7 is operating abnormally, and the administrator of the floor scale system is informed.

[0066] Example 3:

[0067] See also Figure 1 、 8 -11, based on the above embodiment 1, preferably, a speed bump 16 is provided on the top of the scale body 1 outside the scale platform 8. Thus, a two-stage vehicle deceleration effect is achieved in conjunction with the floating scale platform 8.

[0068] The speed bump 16 is driven to slide on the top of the scale body 1 by a guide mechanism 17. A wedge-shaped surface 18 is provided on the side facing the scale entrance, and a first curved surface 19 that gradually retracts inward from top to bottom is provided on the other side. A second curved surface 20 that gradually retracts inward from bottom to top is provided on the top edge of the scale platform 8. The guide mechanism 17 is associated with the scale central control system. The setting of the wedge-shaped surface 18 and the second curved surface 20 can block and guide the wheels of passing vehicles to a certain extent, so as to achieve a suitable deceleration effect. In addition, cleaning components such as cleaning cotton cloth, brushes, etc. can be detachably provided on the bottom surface and the first curved surface 19 of the speed bump 16, so as to cooperate with the movable design of the speed bump 16 to realize the cleaning of impurities on the top surface of the scale body 1 and the scale platform 8, thereby improving the neatness and stability of the scale. The two curved surfaces are used to guide the structure when the speed bump 16 moves onto the scale platform 8 or moves out from its edge, thereby improving the stability of the structural docking.

[0069] The guide mechanism 17 includes a telescopic component 21, a connecting plate 22 and a driving component. The telescopic component 21 is connected to the end of the speed bump 16, and is connected to the driving component in the mounting groove 23 on the side of the floor scale body 1 through the connecting plate 22.

[0070] The telescopic assembly 21 includes a rod 24 and a sleeve 25 . The rod 24 is positioned on the connecting plate 22 , with its top inserted into the inner cavity of the sleeve 25 . An elastic member 26 is provided between the rod 24 and the sleeve 25 .

[0071] The outer inner wall of the mounting groove 23 is provided with a plurality of curved or wavy ribs 27 extending parallel to the sliding direction of the connecting plate 22. The ribs 27 abut against the surface of the connecting plate 22. This reduces the sliding resistance of the connecting plate 22 and improves the stability of the system operation.

[0072] The drive assembly includes a sprocket seat 28, a chain 29, and a rotary drive device 30. At least two sprocket seats 28 are positioned horizontally within the mounting slot 23, with sprockets rotatably mounted thereon. The sprockets mesh with the links of the chain 29. The output end of the rotary drive device 30 docks with the sprockets. Several sprockets are integrally arranged along their axes, and several groups of chains 29 are arranged in parallel. Corresponding links on adjacent chains 29 are connected and docked via connecting blocks 31. The transmission of multiple sprockets and chains 29 improves the stability of the speed reduction belt 16's movement drive. The rotary drive device 30 employs a motor or other conventional rotary drive mechanism or device.

[0073] The working principle of an intelligent floor scale system based on Internet of Things technology in this embodiment includes the following: when cleaning the floor scale body 1 and the top surface of the weighing platform 8, the rotary drive device 30 drives the sprocket to rotate, and through the synchronous operation of the chain 29, drives the connecting plate 22 to slide along the installation groove 23, and the telescopic component 21 synchronously drives the speed reducer 16 to move. When the speed reducer 16 moves to one side of the weighing platform 8, it is guided by the two curved surfaces and is pushed upward and moved onto the weighing platform 8. The elastic member 26 applies elastic tension to the sleeve 25, so that the speed reducer 16 fits tightly with the weighing platform 8 to ensure cleaning efficiency; when the speed reducer 16 moves to the other side of the weighing platform 8, it is guided by the two curved surfaces and the elastic tension of the elastic member 26 and moves to the outside of the weighing platform 8. During the movement of the above-mentioned speed reducer 16, the cleaning component on the speed reducer 16 is used to clean the floor scale.

[0074] Example 4:

[0075] Based on the above embodiment, LED fill-light modules are preferably integrated into the edge of the scale platform 8 and speed bump 16. Ambient light sensors sense the ambient brightness of the scale's surroundings. Based on this observed data, the controller, using IoT technology, automatically adjusts the brightness of the light emitted by the LED fill-light modules to ensure visibility at night or in low-light conditions. This improves the all-weather availability of the scale system and reduces the risk of human intervention. These modules, when linked to the IoT central control system, can dynamically optimize lighting strategies based on vehicle traffic flow.

[0076] Embodiment 5:

[0077] Based on the above embodiment, it is preferable to integrate the weighbridge system with the enterprise's logistics management system (such as ERP) to automatically record vehicle weighing data and generate electronic receipts, reducing manual intervention. This will achieve a "paperless" weighing process and improve the enterprise's digital level.

[0078] Example 6:

[0079] Based on the above embodiment, it is preferable to embed solar panels or kinetic energy generation devices (such as mechanical energy recovery from passing vehicles) in the scale body to ensure continued operation during power outages. A backup power supply and wireless charging module are also designed. This improves the system's reliability in extreme environments and conforms to the "green technology" trend.

[0080] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An intelligent weighing scale system based on Internet of Things technology, characterized in that: include: The scale body has slopes on both sides, and a water injection cavity is provided therein. The top of the water injection cavity extends to the top surface of the scale body through the movable cavity. The size of the water injection cavity is larger than that of the movable cavity. The scale body is provided with a plurality of water injection ports on the side of the water injection cavity. The water injection ports are connected to the water pump through the outer water injection tank. A weighing sensor is arranged at the bottom of the water injection chamber; A weighing platform is slidably arranged on the top of the water injection cavity and in the movable cavity, and its side wall is tightly abutted against the side of the movable cavity; an auxiliary lifting mechanism, which is arranged at the bottom of the water injection chamber and is used to drive the weighing platform to rise; A vehicle sensing mechanism, which is used to sense various parameters of the vehicle to be weighed, and is wirelessly connected to the water pump, weighing sensor, auxiliary lifting mechanism, and vehicle sensing mechanism via the Internet to the scale central control system; The water pump pumps water into the water injection cavity or draws water out from the water injection cavity, so that the weighing platform floats in the water injection cavity, the movable cavity or sinks naturally and docks with the weighing sensor.

2. The intelligent weighing system based on Internet of Things technology according to claim 1, characterized in that: Several water-isolating structures are arranged in the water injection cavity, and the water-isolating structures include a lower tube and an upper tube. The lower tube is positioned on the bottom surface of the water injection cavity, and the upper tube is positioned on the bottom surface of the weighing platform. The upper tube can be vertically slidably sleeved or plugged into the lower tube. The weighing sensor and the auxiliary lifting mechanism are both arranged in the lower tube. The top of the weighing sensor extends to the outside of the lower tube, and a waterproof cover is arranged between the lower tube and the upper tube.

3. The intelligent weighing system based on Internet of Things technology according to claim 1, characterized in that: The auxiliary lifting mechanism includes a lifting drive device and a top plate connected to the output end of the lifting drive device.

4. The intelligent weighing system based on Internet of Things technology according to claim 1, characterized in that: A water level sensor is provided at the bottom of the weighing platform, and the water level sensor is associated with the central control system of the weighing scale.

5. The intelligent weighing system based on Internet of Things technology according to claim 1, characterized in that: A speed bump is provided on the top of the scale body on the outer side of the scale platform.

6. The intelligent weighing system based on Internet of Things technology according to claim 5, characterized in that: The speed bump is driven to slide on the top of the scale body by a guide mechanism, a wedge-shaped surface is provided on the side facing the scale entrance, and a first curved surface is provided on the other side that gradually retracts inward from top to bottom. The top edge of the weighing platform is provided with a second curved surface that gradually retracts inward from bottom to top, and the guide mechanism is associated with the central control system of the scale.

7. The intelligent weighing system based on Internet of Things technology according to claim 6, characterized in that: The guide mechanism includes a telescopic component, a connecting plate and a driving component. The telescopic component is connected to the end of the speed bump, and is connected to the driving component in the installation groove on the side of the floor scale body through the connecting plate.

8. The intelligent weighing system based on Internet of Things technology according to claim 7, characterized in that: The telescopic assembly includes a rod body and a sleeve. The rod body is positioned on the connecting plate, and the top of the rod body is inserted into the inner cavity of the sleeve. An elastic member is arranged between the rod body and the sleeve.

9. The intelligent weighing system based on Internet of Things technology according to claim 7, characterized in that: The outer inner wall of the mounting groove is provided with a plurality of convex ribs extending parallel to the sliding direction of the connecting plate and having an arc-shaped or wavy surface, and the convex ribs abut against the surface of the connecting plate.

10. The intelligent weighing system based on Internet of Things technology according to claim 7, characterized in that: The drive assembly includes a sprocket seat, a chain, and a rotary drive device. At least two sprocket seat axes are horizontally positioned on the inner side of the mounting groove, and sprockets are rotatably arranged thereon. The sprockets are engaged with the links of the chain. The output end of the rotary drive device is connected to the sprockets. Several sprockets are integrally arranged along their axial directions. Several groups of chains are arranged in parallel, and the corresponding links on adjacent chains are connected and connected through connecting blocks.

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