Distributed wireless weighing system

Abstract

A distributed wireless weighing system comprises a wireless display terminal and a plurality of wireless weighing units. The wireless display terminal comprises an information processing unit, a first wireless transmission unit and a man-machine interaction unit, the information processing unit is connected with the first wireless transmission unit and the man-machine interaction unit, and the wireless weighing unit is provided with a second wireless transmission unit. The wireless display terminal performs data interaction with the wireless weighing unit through the first wireless transmission unit and the second wireless transmission unit; the wireless weighing unit comprises a loading platform, a force sensor and a force detection module are arranged in the loading platform, inclined guide slopes are installed at the left end and the right end of the loading platform, and a handle and auxiliary wheels are further installed on the loading platform. The wireless weighing unit is used for weighing at a wheel tire landing point, the infrastructure construction and installation cost of a ground scale is saved, meanwhile, the wireless weighing unit is provided with a portable handle and an auxiliary wheel, the wireless weighing unit can be flexibly combined and adjusted according to actual needs, and the wireless weighing unit is convenient to carry and move and accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle weighing, in particular to a distributed wireless weighing system. Background Art

[0002] The traditional weighbridge wired weighing system is a device used to weigh the weight of an object. It is usually used to measure the weight of a loaded vehicle or any other object that needs to be accurately weighed. Its working principle is to measure the mass of an object based on the deformation of the weighbridge structure caused by the weight of the object. The weighbridge weighing system consists of a weighing platform, sensors, display screen and data processing system. The weighing platform, as the core component, is supported by a set of force sensors and can withstand the weight of the vehicle. When the vehicle enters the weighing platform, the weight of the vehicle is transmitted to the data processing system through the weighing sensor. The sensor usually uses a strain gauge or a pressure sensor. When the vehicle passes, the sensor is subjected to pressure, generates a corresponding electrical signal, and transmits the signal to the data processing system for processing. The data processing system receives the signal from the sensor and converts it into a readable digital display. After the vehicle is weighed, the display screen will display the measurement results in real time, which is convenient for users to observe and record.

[0003] However, the traditional wired weighing system also has some limitations. Since the weighing platform needs to be fixed in the corresponding position, the layout and flexibility of the weighing system are greatly restricted. Not only does it require the installation of the infrastructure of the weighing system, which takes up a lot of ground space, but it also requires the assistance of external instruments, which is relatively costly and cannot be applied to some special occasions. In addition, when repairing and maintaining the weighing system, the weighing system needs to be disassembled, which consumes a lot of manpower.

[0004] Therefore, a distributed wireless weighing system is needed to solve this problem. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a distributed wireless weighing system, which effectively solves the above problems.

[0006] The technical solution is that the utility model includes a wireless display terminal and a plurality of wireless weighing units;

[0007] The wireless display terminal includes an information processing unit, a first wireless transmission unit and a human-computer interaction unit. The information processing unit is connected to the first wireless transmission unit and the human-computer interaction unit respectively. The wireless weighing unit is provided with a second wireless transmission unit. The wireless display terminal exchanges data with the wireless weighing unit through the first wireless transmission unit and the second wireless transmission unit.

[0008] The wireless weighing unit includes a loading platform, which is equipped with a force sensor and a force detection module. The force detection module is connected to the second wireless transmission unit module. Inclined ramps are installed at the left and right ends of the loading platform. The loading platform is also equipped with handles and auxiliary wheels.

[0009] Furthermore, the wireless display terminal also includes a data storage unit for storing data transmitted by the wireless weighing unit and data generated by the information processing unit.

[0010] Furthermore, the plurality of wireless weighing systems are placed according to the tire distribution of the target weighing vehicle.

[0011] Furthermore, a lithium battery is provided in the loading platform, and a power switch and a charging port connected to the lithium battery are also provided on the loading platform.

[0012] Furthermore, a mounting groove is provided on the side of the inclined guide ramp, and mounting protrusions slidably connected to the mounting groove are provided on both sides of the loading platform.

[0013] Furthermore, the loading platform is provided with an inner cavity, the inner cavity is connected to the outside through a sliding interface, the bracket of the auxiliary wheel is slidably arranged in the sliding interface, one end of the bracket extending into the inner cavity is rotatably installed with a limit plate, the limit plate is slidably connected to the side wall of the inner cavity, the bracket is also provided with a first screw rod in the same sliding direction as the bracket, and a threaded ring threadedly connected to the first screw rod is provided in the inner cavity, so that the bracket rotates when sliding in the sliding interface;

[0014] A limit block is provided on the bracket, and one or more card plates corresponding to the position of the limit block are movably provided in the inner cavity. A sliding cavity is also provided in the loading platform, and one end of the card plate is slidably set in the sliding cavity. A second screw is also provided in the sliding cavity, and the second screw is threadedly connected to the card plate. A dial wheel is rotatably installed on one end of the second screw rod, and part of the dial wheel extends to the outside.

[0015] A method for using a distributed wireless weighing system comprises the following steps:

[0016] S1. Through the wireless display terminal, the wireless weighing unit can be calibrated and the parameters of the wireless channel can be set. 4G network communication and RS485 communication can be expanded, and historical records can be viewed and exported.

[0017] S2. Calculate the contact area between the target object or vehicle to be weighed and the wireless weighing unit according to its size, and make a fixed mark on the ground;

[0018] S3. Place the wireless weighing unit flat and place the ramp, and stop each tire of the driving vehicle to be weighed on each wireless weighing unit;

[0019] S4. After the vehicle is stable, the wireless display terminal will display the weight borne by each wireless weighing unit and the total weight of the vehicle;

[0020] S5. Loading and unloading operations are performed on the vehicle. After loading and unloading are completed, the total weight of the vehicle and the cargo will be displayed on the wireless display terminal. The information can be stored or printed according to the weight information of the wireless display terminal, and the vehicle drives away.

[0021] The beneficial effects of the utility model are as follows: the utility model adopts a wireless weighing unit to carry out weighing at the point where the wheel and tire touch down, thus eliminating the infrastructure construction and installation costs of a large scale, and at the same time has a portable handle and auxiliary wheels, and the unlimited load-bearing unit can be flexibly combined and adjusted according to actual needs. The wireless weighing unit is easy to carry, move, and be accurate, and the difficulty of operation is greatly reduced when weighing a target vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a system structure diagram of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the wireless weighing unit of the utility model.

[0024] Figure 3 It is a bottom view of the wireless weighing unit of the utility model.

[0025] Figure 4 This utility model Figure 3 Cross-sectional view along the AA direction.

[0026] Figure 5 This utility model Figure 4 Enlarged view of B. DETAILED DESCRIPTION

[0027] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0028] Embodiment 1:

[0029] Depend on Figures 1 to 3 It is given that the utility model comprises a wireless display terminal and a plurality of wireless weighing units 1;

[0030] The wireless display terminal includes an information processing unit, a first wireless transmission unit and a human-computer interaction unit. The information processing unit can adopt an ARM single-chip microcomputer. The human-computer interaction unit is a control touch screen. The information processing unit is connected to the first wireless transmission unit and the human-computer interaction unit respectively. The wireless weighing unit 1 is provided with a second wireless transmission unit. The wireless display terminal exchanges data with the wireless weighing unit 1 through the first wireless transmission unit and the second wireless transmission unit. The first wireless transmission unit and the second wireless transmission unit can adopt LORA modules. The wireless display terminal can receive weight data of the wireless weighing unit 1, store and calculate the received data, and display the weight, battery power, wireless signal quality and other information of each wireless weighing unit 1 on the display. In addition, it displays the tare weight, gross weight, vehicle unit, operator, time, license plate number and vehicle loading and unloading and other information of the target vehicle, and can print relevant weighing documents as needed. In addition, a single wireless weighing unit 1 can be used to independently weigh the weight of the target object;

[0031] The wireless weighing unit 1 includes a loading platform 2, in which a force sensor and a force detection module are arranged. The force detector module is connected to the second wireless transmission unit module. Inclined ramps 3 are installed at the left and right ends of the loading platform 2. The loading platform 2 is also equipped with a handle 4 and auxiliary wheels 5.

[0032] The wireless display terminal also includes a data storage unit for storing data transmitted by the wireless weighing unit 1 and data generated by the information processing unit.

[0033] The multiple wireless weighing units are placed according to the tire distribution of the target weighing vehicle.

[0034] The loading platform 2 is also provided with a lithium battery, and the loading platform 2 is also provided with a power switch and a charging port connected to the lithium battery.

[0035] A method for using a distributed wireless weighing system comprises the following steps:

[0036] S1. Through the wireless display terminal, the wireless weighing unit 1 can be calibrated and the parameters of the wireless channel can be set. 4G network communication and RS485 communication can be expanded, and historical records can be viewed and exported.

[0037] S2. According to the size of the wireless weighing unit 1 and the calculation of the target object or vehicle to be weighed and its contact area, and make a fixed mark on the ground;

[0038] S3. Place the wireless weighing unit 1 flat and place the inclined slope 3, and stop each tire of the driving vehicle to be weighed on each wireless weighing unit 1;

[0039] S4. After the vehicle is stable, the wireless display terminal will display the weight borne by each wireless weighing unit 1 and the total weight of the vehicle;

[0040] S5. Loading and unloading operations are performed on the vehicle. After loading and unloading are completed, the total weight of the vehicle and the cargo will be displayed on the wireless display terminal. The information can be stored or printed according to the weight information of the wireless display terminal, and the vehicle drives away.

[0041] Embodiment 2:

[0042] Depend on Figures 4 to 5 It is given that, in order to facilitate the installation and disassembly of the inclined guide ramp 3, a mounting groove 6 is provided on the side of the inclined guide ramp 3, and mounting protrusions 7 slidably connected to the mounting groove 6 are provided on both sides of the loading platform 2.

[0043] The loading platform 2 is provided with an inner cavity 8, and the inner cavity 8 is connected to the outside through a sliding interface 9. The bracket 10 of the auxiliary wheel 5 is slidably arranged in the sliding interface 9. One end of the bracket 10 extending into the inner cavity 8 is rotatably installed with a limit plate 11, and the limit plate 11 is slidably connected to the side wall of the inner cavity 8. The bracket 10 is also provided with a first screw 12 in the same sliding direction as the bracket 10. A threaded ring 13 threadedly connected to the first screw 12 is provided in the inner cavity 8, so that the bracket 10 rotates when sliding in the sliding interface 9;

[0044] A limit block 14 is provided on the bracket 10, and one or more card plates 15 corresponding to the position of the limit block 14 are movably provided in the inner cavity 8. A sliding cavity is also provided in the loading platform 2, and one end of the card plate 15 is slidably set in the sliding cavity. A second screw rod 16 is also provided in the sliding cavity, and the second screw rod 16 is threadedly connected to the card plate 15. A dial wheel 17 is rotatably installed at one end of the second screw rod 16, and a part of the dial wheel 17 extends to the outside.

[0045] When this embodiment is in use, the bracket 10 is pulled outward so that the limit block 14 on the bracket 10 is fixed at the end of the inner cavity 8, so that the rotating wheel on the bracket 10 rotates through the first screw 12 and the threaded ring 13 during the continuous sliding process after extending out of the inner cavity 8 and the sliding interface 9, so that the rotating wheel and the rotation direction are perpendicular to the direction of the loading platform 2, and then the dial wheel 17 is rotated so that the rotation of the second screw 16 drives the clamping plate 15 to move in the direction of the bracket 10 and engage the limit block 14, thereby limiting the bracket 10 and ensuring the stability of the auxiliary wheel 5.

[0046] When the two loading platforms 2 need to be spliced ​​for use, the dial wheel 17 is turned in the opposite direction to make the card plate 15 leave the limit block 14, and the bracket 10 is pushed into the inner cavity 8. Under the action of the first screw 12 and the threaded ring 13, the bracket 10 is rotated until the rotation direction of the rotating wheel is parallel to the end face of the loading platform 2, and the bracket 10 is continued to be pushed. At this time, the first screw 12 and the threaded ring 13 are disengaged, and the continuous movement of the rotating wheel will no longer cause the bracket 10 to rotate, so the auxiliary wheel 5 can be hidden. At this time, the two loading platforms 2 can be docked.

[0047] The beneficial effects of the utility model are as follows: the utility model adopts a wireless weighing unit 1 to carry out weighing at the point where the wheel and tire touch down, thus eliminating the cost of infrastructure installation of a large scale, and at the same time, it is provided with a portable handle 4 and auxiliary wheels 5, and the unlimited load-bearing unit can be flexibly combined and adjusted according to actual needs. The wireless weighing unit 1 is easy to carry, move and be accurate, and the difficulty of operation is greatly reduced when weighing a target vehicle.

[0048] The above-mentioned specific implementation modes / embodiments are specific implementation modes of the utility model, which are used to illustrate the concept of the utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation modes of the utility model and the scope of the utility model. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application. These technical solutions include technical solutions that make any obvious replacements and modifications to the embodiments described herein, which are within the scope of protection of the utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A distributed wireless weighing system, characterized in that: It includes a wireless display terminal and a plurality of wireless weighing units (1); The wireless display terminal comprises an information processing unit, a first wireless transmission unit and a human-computer interaction unit, the information processing unit is connected to the first wireless transmission unit and the human-computer interaction unit respectively, the wireless weighing unit (1) is provided with a second wireless transmission unit, and the wireless display terminal exchanges data with the wireless weighing unit (1) via the first wireless transmission unit and the second wireless transmission unit; The wireless weighing unit (1) comprises a loading platform (2), wherein a force sensor and a force detection module are arranged inside the loading platform (2), the force detection module is connected to a second wireless transmission unit module, and inclined ramps (3) are installed at the left and right ends of the loading platform (2). A handle (4) and auxiliary wheels (5) are also installed on the loading platform (2).

2. A distributed wireless weighing system according to claim 1, characterized in that: The wireless display terminal also includes a data storage unit for storing data transmitted by the wireless weighing unit (1) and data generated by the information processing unit.

3. A distributed wireless weighing system according to claim 1, characterized in that: The plurality of wireless weighing units (1) are arranged according to the tire distribution of the target weighing vehicle.

4. A distributed wireless weighing system according to any one of claims 1 to 3, characterized in that: A lithium battery is also provided in the loading platform (2), and a power switch and a charging port connected to the lithium battery are also provided on the loading platform (2).

5. A distributed wireless weighing system according to claim 1, characterized in that: The side surface of the inclined guide ramp (3) is provided with a mounting groove (6), and both sides of the loading platform (2) are provided with mounting protrusions (7) which are slidably connected to the mounting groove (6).

6. A distributed wireless weighing system according to claim 1, characterized in that: The loading platform (2) is provided with an inner cavity (8), the inner cavity (8) is connected to the outside through a sliding interface (9), the bracket (10) of the auxiliary wheel (5) is slidably arranged in the sliding interface (9), one end of the bracket (10) extending into the inner cavity (8) is rotatably installed with a limit plate (11), the limit plate (11) is slidably connected to the side wall of the inner cavity (8), the bracket (10) is also provided with a first screw (12) in the same sliding direction as the bracket (10), and a threaded ring (13) threadedly connected to the first screw (12) is provided in the inner cavity (8), so that the bracket (10) rotates when sliding in the sliding interface (9); A limit block (14) is provided on the bracket (10), one or more card plates (15) corresponding to the position of the limit block (14) are movably provided in the inner cavity (8), a sliding cavity is also provided in the loading platform (2), one end of the card plate (15) is slidably arranged in the sliding cavity, a second screw rod (16) is also provided in the sliding cavity, the second screw rod (16) is threadedly connected to the card plate (15), one end of the second screw rod (16) is rotatably mounted with a dial wheel (17), and a part of the dial wheel (17) extends to the outside.

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