Weighing platform state intelligent monitoring and early warning device of dynamic weighing equipment

Abstract

A weighing platform state intelligent monitoring and early warning device of dynamic weighing equipment comprises two foundations arranged in a foundation pit, a plurality of detected weighing sensors arranged between the two foundations and a weighing platform located above the two foundations, and the inner side edges of the two foundations are each provided with a disc type weighing sensor; one end of a first L-shaped baffle is fixedly connected to the side edge of one of the detected weighing sensors at intervals, and the other end of the first L-shaped baffle abuts against a displacement sensor; instruments of the disc type weighing sensor and the displacement sensor are arranged in a cabinet beside a road, and the instruments are in communication connection with a remote monitoring cloud platform. The invention provides an intelligent monitoring and early warning device for the state of a weighing platform of dynamic weighing equipment, which can provide hardware support for remote online real-time monitoring of the state of the weighing platform of the dynamic weighing equipment and prompts whether the weighing platform deviates or even is about to be stuck in time. The phenomenon that dynamic weighing equipment is seriously inaccurate in weighing and even breaks down is avoided as much as possible.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of monitoring devices of dynamic weighing equipment, and particularly relates to a scale table state intelligent monitoring and early warning device of dynamic weighing equipment. BACKGROUND

[0002] The device hardware of the dynamic weighing equipment (also referred to as a dynamic truck scale) comprises two foundations arranged in a foundation pit under a road, a plurality of detected weighing sensors arranged between the two foundations, and a scale table located above the two foundations. The instrument of the detected weighing sensor is arranged in a cabinet beside the road, and the instrument is connected to a remote monitoring cloud platform in communication. The measurement data of the dynamic weighing equipment is monitored through the remote monitoring cloud platform. The dynamic weighing equipment plays a crucial role in traffic management and logistics transportation, and the accuracy and stability thereof are directly related to the fairness of traffic law enforcement and the efficiency of logistics transportation. The accuracy of the weighing data is affected by factors such as the weighing sensor, the scale table surface, and the road surface condition. However, in actual application, the dynamic weighing equipment is often affected by various factors such as high-frequency impact of vehicles, foundation settlement, and temperature fluctuation, resulting in problems such as scale table jamming and un-compacted weighing sensor at a corner of the scale table, thereby affecting the accuracy of the weighing data. Weighing sensor failure is often easy to find, while scale table jamming is often discovered during metrological verification or manual maintenance by staff, and during the period from the occurrence of the problem to the discovery of the problem, a huge weighing risk is extremely likely to have been generated, thereby causing disputes. On the other hand, some trucks take driving behaviors such as sudden braking and dragging a pound in order to evade detection, which causes the vehicle weight to deviate seriously from the true weight, seriously disrupts the order of overload detection, and easily causes traffic accidents.

[0003] At present, there is a lack of an effective monitoring means in the market, which can reflect the state of the scale table of the dynamic weighing equipment in real time and accurately. When the scale table is subjected to abnormal horizontal lateral force, the scale table surface is offset, and the weighing result is abnormal and cannot be found in time. At the same time, the front and rear foundation surfaces of the scale table surface along the driving direction are subjected to horizontal lateral extrusion force, which causes the road surface to deform or break, the scale table surface is arched, the scale table surface is offset, and the weighing result is abnormal and cannot be found in time. Therefore, there is an urgent need for a scale table state intelligent monitoring and early warning device to solve the problems in the prior art. SUMMARY

[0004] The technical problem to be solved by the application is to provide a scale table state intelligent monitoring and early warning device of dynamic weighing equipment, which can provide hardware support for remotely monitoring the scale table state of the dynamic weighing equipment in real time, timely prompt whether the scale table is offset or even about to be jammed, and avoid the occurrence of serious weighing inaccuracy or even failure of the dynamic weighing equipment as much as possible.

[0005] The application is implemented as follows:

[0006] A scale platform state intelligent monitoring and early warning device of a dynamic weighing device, comprising: two foundations arranged in a foundation pit, a plurality of detected load sensors arranged between the two foundations, and a scale platform located above the two foundations,

[0007] The inner side of each of the two foundations is provided with a disc type load sensor, and each disc type load sensor is mounted on a first ground fixed plate through a first fixed support;

[0008] One end of a first L-shaped baffle is fixedly connected to the side of one of the detected load sensors, and the other end of the first L-shaped baffle abuts against a displacement sensor, and the displacement sensor is mounted on the first ground fixed plate through a second fixed support;

[0009] The instruments of the disc type load sensor and the displacement sensor are arranged in a cabinet beside the road, and the instruments are communicatively connected to a remote monitoring cloud platform.

[0010] Further, a second L-shaped baffle is further arranged on the side of the detected load sensor provided with the first L-shaped baffle; a scale platform lateral load sensor is arranged between the first L-shaped baffle and the second L-shaped baffle, and the scale platform lateral load sensor is mounted on a second ground fixed plate through a third fixed support; a connecting rod is arranged at the middle of the scale platform lateral load sensor, and two bearing rods are respectively rotatably connected to the two ends of the connecting rod, and the two bearing rods abut against the first L-shaped baffle and the second L-shaped baffle, respectively.

[0011] The instrument of the scale platform lateral load sensor is arranged in a cabinet beside the road, and the instrument is communicatively connected to a remote monitoring cloud platform.

[0012] Further, the model of the scale platform lateral load sensor is T702B-1T.

[0013] Further, the model of the disc type load sensor is R215-1T.

[0014] Further, the model of the displacement sensor is CW-341.

[0015] The application has the following advantages:

[0016] 1. Real-time monitoring of dynamic weighing equipment is realized: when the front and rear base surfaces of the platform are deformed or broken, the disc-type weighing sensor can be monitored in real time. The early warning load of the disc-type weighing sensor can be preset on the remote monitoring cloud platform, and when the early warning force changes, the dynamic weighing equipment remote monitoring cloud platform can timely and remotely monitor the change of the bearing load online, thereby realizing omnibearing real-time monitoring and early warning of the platform state (base deformation, displacement, horizontal force) and intelligent early warning of the equipment state. The platform state of the dynamic weighing equipment can be monitored in real time, and the risk of the platform being about to be stuck is prompted in time to avoid the occurrence of serious weighing inaccuracy or even failure of the dynamic weighing equipment.

[0017] 2. Unreasonable driving behaviors such as dragging a weight can be judged to provide a basis for traffic management and law enforcement: when the platform shakes front and back, the platform lateral weighing sensor or displacement sensor can monitor in real time, and through intelligent algorithm analysis of the data processing module, the influence of the abnormal horizontal lateral force on the weighing result is evaluated, and whether the fluctuation range of the weighing result exceeds the rationality is judged. BRIEF DESCRIPTION OF DRAWINGS

[0018] The application will be further described below with reference to the accompanying drawings and embodiments.

[0019] Fig. 1 is a structural schematic diagram of the appearance of the application.

[0020] Fig. 2 is a schematic diagram of the separation structure of the application.

[0021] Fig. 3 is a structural schematic diagram of the application (partially truncated with the platform and one base).

[0022] Fig. 4 is a top view of the application (without the platform).

[0023] REFERENCE NUMERALS:

[0024] 1-base, 2-inspected weighing sensor, 3-platform, 4-disc-type weighing sensor, 41-first fixed support, 51-first ground fixed plate, 52-second ground fixed plate, 61-first L-shaped baffle, 62-second L-shaped baffle, 7-platform lateral weighing sensor, 71-third fixed support, 72-connection rod, 73-bearing rod, 8-displacement sensor, 81-second fixed support. DETAILED DESCRIPTION

[0025] As Figs. 1 to 4As shown, a kind of dynamic weighing equipment platform state wisdom monitoring early warning device, it include: two foundations 1 in foundation (figure not shown) inside, multiple detected weighing sensors 2 between two foundations 1 and located above two foundations 1 platform 3, the inner side of two foundations 1 is equipped with a disc type weighing sensor 4 (model is R215-1T), each disc type weighing sensor 4 is installed on a first ground fixed plate 51 by a first fixed support 41;

[0026] The side of one of the detected weighing sensors 2 is fixedly connected with a first L-shaped baffle 61, the other end of the first L-shaped baffle 61 abuts against a displacement sensor 8 (model is CW-341), and the displacement sensor 8 is installed on a first ground fixed plate 51 by a second fixed support 81;

[0027] A second L-shaped baffle 62 is also provided on the side of the detected weighing sensor 2 provided with the first L-shaped baffle 61; a platform lateral weighing sensor 7 (model is T702B-1T) is also arranged between the first L-shaped baffle 61 and the second L-shaped baffle 62, and the platform lateral weighing sensor 7 is installed on a second ground fixed plate 52 by a third fixed support 71; a connecting rod 72 is arranged at the middle portion of the platform lateral weighing sensor 7, and the two ends of the connecting rod 72 are respectively rotatably connected to a bearing rod 73, and the two bearing rods 73 abut against the first L-shaped baffle 61 and the second L-shaped baffle 62, respectively;

[0028] The instruments of the two disc type weighing sensors 4, the platform lateral weighing sensor 7 and the displacement sensor 8 are arranged in a cabinet beside the road, the instruments are communicatively connected to a remote monitoring cloud platform, the platform offset early warning is realized by correlating analysis of load change and displacement amount, the data of the disc type weighing sensors 4 and the displacement sensor 8 are transmitted to the remote monitoring cloud platform via the instruments, the remote monitoring cloud platform realizes real-time early warning of platform jamming risk based on preset threshold and dynamic algorithm, and the influence of foundation settlement on weighing accuracy is evaluated.

[0029] By the symmetrically arranged first L-shaped baffle 61 and second L-shaped baffle 62 and platform lateral weighing sensor 7, abnormal horizontal lateral force received by the platform 1 is captured in real time; in combination with the lever type force transmission mechanism of the bearing rod 73 and the connecting rod 72, the horizontal impact force intensity is quantified.

[0030] The data of the disc type weighing sensors 4, the platform lateral weighing sensor 7 and the displacement sensor 8 are transmitted to the remote monitoring cloud platform via the instruments, the horizontal force data and the displacement monitoring module and the foundation deformation monitoring module are cooperatively input into the remote monitoring cloud platform, the remote monitoring cloud platform judges the improper driving behavior (such as sudden braking and dragging pound) of the vehicle by mode recognition algorithm (such as load change rate and peak value analysis), and outputs an influence evaluation report.

[0031] It should be noted that the two-disk weighing sensor 4, the scale side weighing sensor 7 and the displacement sensor 8 can be self-instrumented or compatible to the instrument of the detected weighing sensor 2.

[0032] In specific practice, the side weighing sensor 7 can not be provided, and only the displacement sensor 8 and the two-disk weighing sensor 4 can be provided.

[0033] The two-disk weighing sensor 4 is used for monitoring the deformation or fracture of the front and rear foundations.

[0034] The scale side weighing sensor 7 and the displacement sensor 8 are used for monitoring whether the scale shakes forward and backward.

[0035] Normal weighing process: the vehicle drives onto the dynamic weighing device, the scale is stressed and transmits the weight information to the weighing system, and it is ensured that the scale moves within the allowable range.

[0036] Abnormal force monitoring of the scale surface: under the long-term impact of vehicle driving, the scale 3 can be displaced, the side weighing sensor 7 monitors the change of the bearing load in real time, the displacement sensor 8 monitors the change of displacement in real time, the roadbed and the scale surface are affected by temperature or settlement, and the scale is also subjected to abnormal horizontal force, the two-disk weighing sensor 4 monitors the change of the bearing load and sends a signal to the signal processing unit.

[0037] Driving behavior judgment: during the vehicle weighing process, if braking, dragging pound and other driving behaviors occur, the scale will be subjected to a horizontal impact force. When the impact force is too large, the two-disk weighing sensor 4 monitors the change of the bearing load in real time and sends a signal to the signal processing unit. The signal processing unit judges whether there is improper driving behavior according to the characteristics and mode of the change of the bearing load, such as the load change rate, peak value, duration, etc.

[0038] The two-disk weighing sensor 4, the scale side weighing sensor 7 and the displacement sensor 8 in the application are responsible for converting the sensed load into an electrical signal, and the signal is amplified, filtered and linearized by the signal processing unit, so that the subsequent equipment can accurately receive and analyze. The analog electrical signal is converted into a digital signal by a signal converter, so as to be transmitted remotely and online.

[0039] The current freight vehicle over-limit and overload control system front-end technology monitoring can collect vehicle license plate, weight, vehicle type and other information, and is implemented in units of county, city or province to realize regional data networking, which lays a solid foundation for implementing online calibration. The remote monitoring cloud platform publicly obtains and records vehicle data and weighing data of freight vehicles passing through dynamic weighing equipment, and analyzes the weighing data of multiple dynamic weighing equipment passed by the same freight vehicle within a preset time period based on the weighing data and vehicle data, and evaluates the influence of abnormal force on the weighing result. To achieve the following functions:

[0040] Time synchronization: synchronize vehicle data, weighing data and scale state monitoring data according to timestamp to ensure the timeliness of the data.

[0041] Data association: associate the weighing data of the same freight vehicle at different dynamic weighing equipment through the unique identification of license plate number.

[0042] Weighing data analysis: compare and analyze the weighing data of the same freight vehicle at multiple dynamic weighing equipment to detect whether there is abnormal fluctuation.

[0043] Scale state analysis: analyze whether the scale is affected by abnormal force such as excessive horizontal impact force by combining scale state monitoring data.

[0044] Influence evaluation: evaluate the influence degree of abnormal force on the weighing result according to the abnormal fluctuation of weighing data and scale state monitoring data.

[0045] The present application provides hardware support for real-time monitoring and early warning of scale state, and innovatively realizes real-time monitoring of scale displacement of dynamic weighing equipment and judgment of driving behavior. It can timely monitor the change of bearing load, thereby realizing real-time monitoring and early warning of scale state. It can monitor the scale state of dynamic weighing equipment in real time, timely prompt the risk of scale being stuck, and reduce the phenomenon of dynamic weighing equipment losing weight.

[0046] The above examples and drawings do not limit the product form and style of the present application, and any appropriate changes or modifications made by those skilled in the art shall be considered as not departing from the scope of the present application.

Claims

1. A kind of dynamic weighing equipment platform state wisdom monitoring early warning device, comprising: Two foundations arranged in a foundation pit, a plurality of detected load sensors arranged between the two foundations, and a weighing platform located above the two foundations, Characterized in that: the inner side of each of the two foundations is provided with a disc type load sensor, and each disc type load sensor is installed on a first ground fixed plate through a first fixed support; One end of a first L-shaped baffle is fixedly connected to the side of one of the detected load sensors, and the other end of the first L-shaped baffle abuts against a displacement sensor, and the displacement sensor is installed on the first ground fixed plate through a second fixed support; The instruments of the disc type load sensor and the displacement sensor are placed in a cabinet beside the road, and the instruments are communicatively connected to a remote monitoring cloud platform.

2. The scale platform state intelligent monitoring and early warning device of a dynamic weighing apparatus according to claim 1, characterized in that: Further comprising: A second L-shaped baffle is arranged on the side of the detected load sensor provided with the first L-shaped baffle; a weighing platform lateral load sensor is arranged between the first L-shaped baffle and the second L-shaped baffle, and the weighing platform lateral load sensor is installed on a second ground fixed plate through a third fixed support; a connecting rod is arranged in the middle of the weighing platform lateral load sensor, and two bearing rods are respectively rotatably connected to the two ends of the connecting rod, and the two bearing rods abut against the first L-shaped baffle and the second L-shaped baffle, respectively; The instrument of the weighing platform lateral load sensor is placed in a cabinet beside the road, and the instrument is communicatively connected to a remote monitoring cloud platform.

3. The scale platform state intelligent monitoring and early warning device of a dynamic weighing apparatus according to claim 2, characterized in that: The model of the weighing platform lateral load sensor is T702B-1T.

4. The scale platform state intelligent monitoring and early warning device of a dynamic weighing apparatus according to claim 1, characterized in that: The model of the disc type load sensor is R215-1T.

5. The scale platform state intelligent monitoring and early warning device of a dynamic weighing apparatus according to claim 1, characterized in that: The model of the displacement sensor is CW-341.

Images