Vehicle-mounted weighing device

Abstract

The utility model provides a vehicle-mounted weighing device which comprises a sensor, a spring assembly formed by connecting a length regulator and a spring, and an intelligent terminal master control, the sensor is fixed on a vehicle crossbeam, one end of the spring assembly is connected with the sensor, the other end of the spring assembly is connected with an axle, and the sensor is electrically connected with the intelligent terminal master control. The sensor outputs a corresponding voltage signal to the intelligent terminal master controller according to the stress condition transmitted by the spring assembly, and the intelligent terminal master controller processes the voltage signal and then outputs weight data. The size of the sensor is small, the sensor is not limited by narrow installation space of a freight vehicle, the measuring range can flexibly adjust the spring and the length adjuster according to the requirement of the bearing capacity required by vehicle-mounted weighing, the real-time, rapid and accurate measurement of the vehicle load condition can be realized, and the sensor has a good application prospect.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle load measurement, and particularly relates to a vehicle-mounted weighing device. Background Art

[0002] In recent years, overloading of vehicles has become increasingly serious. This problem not only damages the highway infrastructure, but also endangers the lives and property of the people, seriously affecting highway traffic safety in China. Accurately obtaining the vehicle load is of great importance to highway design, construction and management departments. Existing vehicle-mounted weighing sensors are generally divided into two categories: direct type and indirect type. The direct type generally uses pressure sensors, etc. to directly measure the vehicle load. In the application field of vehicle-mounted weighing systems, due to factors such as narrow installation space, frequent vibration and impact, and large pre-tightening force, conventional weighing pressure sensor products cannot be applied to this specific engineering application. Pressure sensors with a large measuring range are too large to be installed; sensors with a smaller size have too small a measuring range and do not meet the bearing capacity requirements of the vehicle-mounted weighing application field. The indirect type generally uses deformation displacement sensors to detect the micro-deformation or displacement of the vehicle frame or axle and converts it into weight through algorithms. Its disadvantage is that the vehicle models and structures are different, and the universality is not good. At the same time, to convert the collected micro-deformation or displacement into weight, that is, there is one more calculation and conversion process compared with the direct method, so the displacement method has low accuracy and large errors. Therefore, it is particularly important to design a weighing device that can accurately measure the vehicle load immediately. Summary of the Invention

[0003] Object of the Invention: Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a vehicle-mounted weighing device.

[0004] Technical Solution: A vehicle-mounted weighing device provided by the utility model includes a sensor, a spring assembly, and an intelligent terminal main control. The spring assembly is composed of a length adjuster and a spring connected together. The sensor is fixed on the vehicle girder. One end of the spring assembly is connected to the sensor, and the other end is connected to the axle. The sensor is electrically connected to the intelligent terminal main control. The sensor outputs a corresponding voltage signal to the intelligent terminal main control according to the force received by the spring assembly, and the intelligent terminal main control processes the voltage signal and outputs weight data.

[0005] Optionally, the length adjuster in the spring assembly is connected to the sensor, and the spring is connected to the axle; or the length adjuster is connected to the axle, and the spring is connected to the sensor.

[0006] Furthermore, the vehicle-mounted weighing device further includes a load display screen, which is electrically connected to the intelligent terminal main control and is used to display weight information, and can have the function of displaying tare weight and net weight.

[0007] Furthermore, an LED display screen is adopted and is arranged in the cab for on-site display.

[0008] Furthermore, the vehicle-mounted weighing device also includes a positioning system, which is used for vehicle positioning and can realize the command and dispatch function of transportation during cargo transportation.

[0009] Furthermore, the vehicle-mounted weighing device also includes the intelligent terminal main control and the user terminal monitoring device transmitting data through wireless communication to realize the remote monitoring function.

[0010] Furthermore, the wireless communication method includes GSM, GPRS, 3G, 4G or 5G.

[0011] Furthermore, the vehicle-mounted weighing device also includes a cargo door switch signal sensor.

[0012] Technical principle: Under the action of heavy objects on the vehicle, since it is static load weighing, the automobile spring steel plate is equivalent to a large-rigidity spring and the damping of the small-rigidity tension / compression spring in the weighing device does not work. The downward deformation of the automobile spring steel plate is equal to the deformation of the small-rigidity tension / compression spring. The vehicle weight is proportional to the deformation of the tension / compression spring, and the deformation of the spring is proportional to the force of the tension and compression sensor. Finally, the vehicle weight is in corresponding relationship with the voltage signal output by the sensor.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following advantages: the sensor of the utility model is small in size and can be flexibly installed; the measuring range can flexibly adjust the spring and length adjuster according to the load-bearing capacity required for vehicle-mounted weighing, and can realize real-time, fast and accurate measurement of vehicle load conditions, and output it to the vehicle management platform of the remote monitoring center through the wireless network, so as to realize the effective management of the running vehicles by the fleet managers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of the vehicle-mounted weighing device provided by the utility model;

[0015] Figure 2 A schematic diagram of the mechanical model of the vehicle-mounted weighing device provided by the utility model;

[0016] Figure 3 This is a system diagram of the vehicle-mounted weighing device provided by the utility model. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figures 1 - 3As shown in the figure, the utility model provides a vehicle-mounted weighing device, which includes a sensor 1, a spring assembly composed of a length adjuster 2 and a spring 3, an intelligent terminal main control 4, a load display screen 5, a positioning system 6 and a cargo door switch signal sensor 7.

[0019] The sensor 1 is fixed on the vehicle frame. The length adjuster 2 is connected to the sensor 1. One end of the spring 3 is connected to the axle, and the other end is connected to the length adjuster 2. The sensor 1 is electrically connected to the intelligent terminal main control 4. The sensor 1 outputs a corresponding voltage signal to the intelligent terminal main control 4 according to the force received through the spring 3. The intelligent terminal main control 4 processes the voltage signal and outputs weight data.

[0020] The load display screen 5 is an LED display screen, which is set in the cab and electrically connected to the intelligent terminal main control, and is used to display weight information on site, and can specifically display the functions of tare weight and net weight.

[0021] The positioning system 6 is set outside the cab and is communicatively connected to the intelligent terminal main control 4, and is used for vehicle positioning, and can realize the command and dispatching function during cargo transportation.

[0022] The intelligent terminal main control 4 transmits data to the user terminal monitoring device through a wireless communication network to realize the remote monitoring function and realize the effective management of the fleet manager for the running vehicles.

[0023] The wireless communication methods include GSM, GPRS, 3G, 4G or 5G, etc.

[0024] The cargo door switch signal sensor 7 can timely transmit the cargo door switch situation to the intelligent terminal main control for convenient further data processing.

[0025] The sensor of the utility model is small in size and is not restricted by the narrow installation space of freight vehicles. The measurement range can be flexibly adjusted according to the required bearing capacity of vehicle-mounted weighing by adjusting the spring and the length adjuster, and can realize the real-time, rapid and accurate measurement of the vehicle load condition, and output it to the vehicle management platform of the remote monitoring center through the wireless network to realize the effective management of the fleet manager for the running vehicles. It has good application prospects.

Claims

1. A vehicle-mounted weighing device, characterized in that: The invention comprises a sensor (1), a spring assembly, and an intelligent terminal main control (4); the spring assembly is composed of a length adjuster (2) connected to a spring (3); the sensor (1) is fixed on a vehicle beam; one end of the spring assembly is connected to the sensor (1) and the other end is connected to the axle; the sensor (1) is electrically connected to the intelligent terminal main control (4); the sensor (1) outputs a corresponding voltage signal to the intelligent terminal main control (4) according to the force transmitted by the spring assembly; the intelligent terminal main control (4) processes the voltage signal and outputs weight data.

2. The vehicle-mounted weighing device according to claim 1, characterized in that: The vehicle-mounted weighing device also includes a load display screen (5) which is electrically connected to the intelligent terminal main control (4) and is used to display weight information.

3. The vehicle-mounted weighing device according to claim 2, characterized in that: The load display screen (5) is an LED display screen and is arranged in the cab.

4. The vehicle-mounted weighing device according to claim 1, characterized in that: The vehicle-mounted weighing device also includes a positioning system (6) which is communicatively connected to the intelligent terminal main control (4).

5. The vehicle-mounted weighing device according to claim 1, characterized in that: The intelligent terminal main control (4) and the user terminal monitoring device transmit data via wireless communication to realize a remote monitoring function.

6. The vehicle-mounted weighing device according to claim 5, characterized in that: The wireless communication method includes GSM, GPRS, 3G, 4G or 5G.

7. The vehicle-mounted weighing device according to claim 1, characterized in that: The vehicle-mounted weighing device also includes a cargo box door switch signal sensor (7) which is communicatively connected to the intelligent terminal main control (4).

8. The vehicle-mounted weighing device according to claim 1, characterized in that: The length adjuster (2) in the spring assembly is connected to the sensor (1), and the spring (3) is connected to the axle.

9. The vehicle-mounted weighing device according to claim 1, characterized in that: The length adjuster (2) in the spring assembly is connected to the axle, and the spring (3) is connected to the sensor (1).

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