阅读说明：本技术 一种动态称重装置 (Dynamic weighing device ) 是由 陈宝明 王艳景 李志荣 秦勇 于 2019-04-16 设计创作，主要内容包括：本发明公开一种动态称重装置,包括钢质载体、传感器、数据处理器、控制器、电平转换器、电源接口、数据接口及密封板,钢质载体正面有等高同轴圆形沉槽,圆形沉槽上下设有条形桥通孔,钢质载体背面具有与正面相同的圆形沉槽,数据处理器、控制器、电平转换器、电源接口、数据接口嵌入放置在钢质载体内,传感器包括应变片和压电陶瓷,数据处理器包括数据采集器、AD转换器、数据存储器、数据传输器,电源接口连接电平转换器,电平转换器连接控制器和数据处理器,数据处理器连接控制器、传感器、数据接口。本发明易于安装,数据读取方便,测量范围宽,能快速准确测量经过该装置物体的重量,适用于运动物体重量的快速测量。(The invention discloses a dynamic weighing device, which comprises a steel carrier, a sensor, a data processor, a controller, a level converter, a power interface, a data interface and a sealing plate, wherein the front surface of the steel carrier is provided with a coaxial circular sinking groove with equal height, strip-shaped bridge through holes are formed in the upper part and the lower part of the circular sinking groove, the back surface of the steel carrier is provided with a circular sinking groove which is the same as the front surface, the data processor, the controller, the level converter, the power interface and the data interface are embedded and placed in the steel carrier, the sensor comprises a strain gauge and piezoelectric ceramics, the data processor comprises a data collector, an AD converter, a data memory and a data transmitter, the power interface is connected with the level converter, the level converter is connected with the controller and the data processor, and the data processor is. The invention is easy to install, convenient to read data, wide in measurement range, capable of quickly and accurately measuring the weight of an object passing through the device and suitable for quickly measuring the weight of a moving object.)

1. A dynamic weighing device is characterized by comprising a steel carrier, a sensor, a data processor, a controller, a level converter, a power interface, a data interface and a sealing plate, wherein the front surface of the steel carrier is provided with a coaxial circular sinking groove with equal height, strip-shaped bridge through holes are formed in the upper part and the lower part of the circular sinking groove, the back surface of the steel carrier is provided with a circular sinking groove which is the same as the front surface of the steel carrier, and the data processor, the controller, the level converter, the power interface and the data interface are embedded in the steel carrier;

the sensor comprises a strain gauge and piezoelectric ceramics, the data processor comprises a data acquisition unit, an AD converter, a data storage unit, a data transmission unit, a power interface is connected with a level converter, the level converter is connected with a controller and the data processor, and the data processor is connected with the controller, the sensor and a data interface.

2. The dynamic weighing apparatus of claim 1, wherein said steel carrier base is provided with a plurality of elongated recesses extending parallel to the bottom of said circular recess.

3. The dynamic weighing apparatus of claim 1, wherein the sensor comprises a strain gauge fixed at the center of the bottom of the circular sinking groove and a piezoelectric ceramic fixed at the side of the bar-shaped sinking groove and coaxial with the strain gauge.

4. The dynamic weighing device of claim 1, wherein the side of the circular sinking groove is provided with a circular sinking groove through hole towards the bottom of the steel carrier, and a wire is inserted into the circular sinking groove through hole and connected with the strain gauge.

5. The dynamic weighing apparatus of claim 1, wherein the steel carrier has an interface hole formed in a front surface thereof.

6. The dynamic weighing apparatus of claim 1, wherein said two symmetrical sensors on the front and back sides of said steel carrier are a set of monitoring points, and each two adjacent sets of monitoring points are a pressure monitoring unit.

7. The dynamic weighing apparatus of claim 1, wherein said sealing plate is fixed to the bottom of the steel carrier.

Technical Field

The invention relates to the field of sensors, and particularly belongs to a dynamic weighing device.

Background

With the continuous development of sensor technology, a sensor is embedded into a weighing device, and is matched with an image acquisition technology, when a moving object passes through the surface of the weighing device, the weight of the moving object can be accurately and rapidly and dynamically measured by utilizing big data operation and an electronic instrument containing software, so that the method is applied to many fields, such as the management of the highway overspeed overload by a public security traffic police department, the rapid charging of a high-speed toll station according to the load capacity, the parcel flow weighing of the express delivery industry and the like. However, many problems occur in the practical application process, such as large influence of speed on measurement error and measurement precision in the dynamic measurement process; the influence on the weight accuracy caused by the fact that the object moves in a speed-changing mode when the object is slow; the use of a higher frequency brings about an increase in replacement cost, and the like. In order to solve the above problems, the present invention provides a dynamic weighing apparatus.

Disclosure of Invention

The invention aims to provide a dynamic weighing device which can quickly and accurately measure the weight of a moving object and solve the problems in the background technology.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a dynamic weighing device is characterized by comprising a steel carrier, a sensor, a data processor, a controller, a level converter, a power interface, a data interface and a sealing plate, wherein the front surface of the steel carrier is provided with a coaxial circular sinking groove with equal height, strip-shaped bridge through holes are formed in the upper part and the lower part of the circular sinking groove, the back surface of the steel carrier is provided with a circular sinking groove which is the same as the front surface of the steel carrier, and the data processor, the controller, the level converter, the power interface and the data interface are embedded in the steel carrier; the sensor comprises a strain gauge and piezoelectric ceramics, the data processor comprises a data acquisition unit, an AD converter, a data storage unit, a data transmission unit, a power interface is connected with a level converter, the level converter is connected with a controller and the data processor, and the data processor is connected with the controller, the sensor and a data interface.

Preferably, the bottom of the steel carrier is provided with a strip-shaped sinking groove along the parallel direction of the bottom of the round sinking groove.

Preferably, the sensor comprises a strain gauge and piezoelectric ceramics, wherein the strain gauge is fixed at the center of the bottom of the circular sinking groove, and the piezoelectric ceramics are fixed on the side surface of the strip-shaped sinking groove and are coaxial with the strain gauge in height.

Preferably, a circular sinking groove through hole is formed in the side face of the circular sinking groove towards the bottom of the steel carrier, and a lead wire penetrates through the circular sinking groove through hole to be connected with the strain gauge.

Preferably, the front surface of the steel carrier is provided with an interface hole.

Preferably, the two symmetrical sensors on the front side and the back side of the steel carrier are a group of monitoring points, and each two adjacent groups of monitoring points are a pressure monitoring unit.

Preferably, the sealing plate is fixed to the bottom of the steel carrier.

Compared with the prior art, the invention has the beneficial effects that:

the method utilizes the good elastic deformation characteristic of the steel carrier, measures the micro deformation of the steel carrier by combining the strain gauge and the optimized design of the piezoelectric ceramic, well solves the problems mentioned in the background technology, can quickly and accurately measure the weight of a moving object, and has the following characteristics compared with the prior art: firstly, the measuring range is large, and the method is suitable for the parcel weighing from a lorry on a road to the express delivery industry; secondly, the weight of the object can be quickly and accurately measured without being influenced by the movement speed of the object; thirdly, the speed of the movement of the object is not influenced; fourthly, the measurement key component sensor is convenient to replace, and the equipment replacement cost is saved under the condition of high-frequency use.

Drawings

FIG. 1 is a schematic structural view of a dynamic weighing apparatus;

FIG. 2 is a bottom view of the dynamic weighing apparatus;

FIG. 3 is a longitudinal cross-sectional view of a dynamic weighing apparatus A-A;

FIG. 4 is a transverse cross-sectional view of a dynamic weighing apparatus B-B;

FIG. 5 dynamic weighing apparatus seal plate;

corresponding numerical designations in the drawings for the corresponding parts: the device comprises a steel carrier (1), an interface hole (2), a circular sinking groove (3), a circular sinking groove through hole (4), a strip-shaped bridge through hole (5), a sensor (6), a strain gauge (6-1), piezoelectric ceramics (6-2), a data processor (7), a controller (8), a level converter (9), a power interface (10), a data interface (11), a strip-shaped sinking groove (12) and a sealing plate (13).

Detailed Description

The technical scheme of the invention is clearly described below with reference to the attached drawings, and the specific implementation manner of the invention is as follows with reference to the attached drawings:

referring to the attached drawings 1-5, the dynamic weighing device is characterized by comprising a steel carrier (1), a sensor (6), a data processor (7), a controller (8), a level converter (9), a power interface (10), a data interface (11) and a sealing plate (14), wherein the front surface of the steel carrier (1) is provided with a coaxial circular sinking groove (3) with equal height, strip-shaped bridge through holes (5) are formed in the upper part and the lower part of the circular sinking groove (3), the back surface of the steel carrier (1) is provided with the circular sinking groove (3) which is the same as the front surface, and the data processor (7), the controller (8), the level converter (9), the power interface (10) and the data interface (11) are embedded in the steel carrier (1); the sensor (6) comprises a strain gauge (6-1) and piezoelectric ceramics (6-2), the data processor (7) comprises a data acquisition unit, an AD converter, a data storage unit and a data transmission unit, a power interface (10) is connected with a level converter (9), the level converter (9) is connected with a controller (8) and the data processor (7), and the data processor (7) is connected with the controller (8), the sensor (6) and a data interface (11).

Preferably, the bottom of the steel carrier (1) is provided with a strip-shaped sinking groove (12) along the parallel direction of the bottom of the circular sinking groove (3).

Preferably, the sensor (6) comprises a strain gauge (6-1) and piezoelectric ceramics (6-2), wherein the strain gauge (6-1) is fixed at the bottom center of the circular sinking groove (3), and the piezoelectric ceramics (6-2) are fixed on the side surface of the strip-shaped sinking groove (12) and are coaxial with the strain gauge (6-1) in height.

Preferably, a circular sinking groove through hole (4) is formed in the side face of the circular sinking groove (3) towards the bottom direction of the steel carrier (1), and a lead wire penetrates through the circular sinking groove through hole (4) to be connected with the strain gauge (6-1).

Preferably, the front surface of the steel carrier (1) is provided with an interface hole (2).

Preferably, the two symmetrical sensors (6) on the front side and the back side of the steel carrier (1) form a group of monitoring points, and each two adjacent groups of monitoring points form a pressure monitoring unit.

Preferably, the sealing plate (13) is fixed at the bottom of the steel carrier (1).