Portable goods limit measurement instrument

Abstract

The invention discloses a portable goods limit measurement instrument, which comprises a video camera, a mechanical support for supporting the video camera, and a handheld controller for adjusting the mobile position of the video camera; the mechanical support comprises a vertical sliding table and a horizontal sliding table, wherein the vertical sliding table is vertically arranged on the upper end of a main support, the horizontal sliding table can slide along the vertical sliding table, and the video camera can move along the horizontal sliding table; image information acquired by the video camera is transmitted to the handheld controller for displaying. A method of observing the edge contour of a train compartment projection through the video camera is adopted for measuring the space position of the camera in real time so as to measure the heights and widths of goods loaded in a compartment, and the scheme realization process is simple; the complexity of wired connection can be avoided in a wireless communication manner; a image of the video camera can be displayed in real time through the handheld controller, a reference datum line and real-time height and width information of observed goods can be marked on the display interface so as to realize the measurement purpose. The mechanical structure adopts a withdrawable structure, thus being convenient to carry.

Description

technical field [0001] The invention relates to a portable cargo limit measuring instrument, which belongs to the technical field of measurement. Background technique [0002] The static margin of railway rolling stock refers to the maximum dimension of each part of the vehicle from the rail surface and the widest dimension of the vertical plane of the centerline of the track line when the locomotive is stationary. It is a basic technical parameter for the design, manufacture and use of rolling stock. [0003] At present, contact static gauges are mainly used to measure the contours of railway rolling stock, but there are disadvantages such as many measurement steps, large cumulative error, low efficiency, and possible scratches on the vehicle body. Guo Yin of Tianjin University and others developed a non-contact automatic measurement system for the static boundary of rolling stock with laser ranging sensors as the main measurement method (non-contact automatic measurement ...

AI Technical Summary

Problems solved by technology

[0003] At present, the static gauge of the railway rolling stock is mainly used to measure the outline of the rolling stock, but there are many shortcomings in the measurement process, large cumulative error, low efficiency, and possible scratches on the car body.

Guo Yin of Tianjin University and others developed a non-contact automatic measurement system for the static boundary of rolling stock with laser ranging sensors as the main measurement method (non-contact automatic measurement system for static boundary of rolling stock, "China Railway Science", 2013, Volume 34, Issue 1), provides a new and effective solution for the static limit measurement of railway rolling stock, but this measurement method is a fixed measurement, and each measurement is a section of the vehicle profile, which cannot The maximum profile along the direction of train movement is measured. At the same time, 6 laser ranging sensors are used for fusion measurement. The measurement process is complicated and portable measurement cannot be realized.

Images