Laser 3D Inspection First Used for Smart Meters

Jiangsu Electric Power Research Institute of Electric Power recently successfully developed a smart meter type three-dimensional laser detection system, and applied to the national grid system. In the next step, Jiangsu Electric Power Research Institute will focus on how to apply the scale of electric meter type three-dimensional laser detection technology to automated inspection lines.

More than six months later, the Jiangsu Electric Power Research Institute of Electric Power successfully developed a smart meter type three-dimensional laser inspection system on August 26, and applied the laser three-dimensional inspection technology to the smart meters for the first time in the system of the State Grid Corporation of China.

Electricity meters are used as the basis for the trade settlement of electricity, electricity, and electricity, and their measurement accuracy and reliability are directly related to the people's livelihood. At present, there are many smart meter manufacturers in Jiangsu, and the manufacturers' manufacturing levels are uneven. The lack of an effective type size detection method has brought inconvenience to the current management, installation, rotation, training, use, and other operational management of the electric energy meter and the centralized automatic detection of electric energy meters, which has increased the operating costs. In order to ensure that the size and the tolerance of the smart meters produced by various suppliers meet the technical standards and ensure the efficient and reliable operation of the smart meters' automatic detection lines, the Jiangsu Academy of Sciences conducted a research on the three-dimensional laser detection technology for the size of smart meters and tried to make The smart meter's size can be quickly and accurately detected.

Jiangsu University of Science and Technology cooperated with Nanjing University of Aeronautics and Astronautics, Yangzhou University and other universities to determine the algorithm and scheme according to the type structure and detection requirements of the smart meter, and successfully developed a smart meter type three-dimensional laser detection system. The detection system is based on the principle of optical triangulation. It includes the hardware and software systems for smart meter type detection, mechanical platform, and electromechanical control system. It can perform automatic measurement and display of results. At the same time, super-accuracy is based on the dimensional tolerances of the State Grid meter type requirements standards. Poor alarm. The system is used together with the existing smart meter automatic verification system, and uses a laser scanning image center extraction algorithm to extract the contour center of the scan line stably and detect all the sizes of the smart energy meter within 10 seconds, within a range of 100 millimeters. The detection error is less than 0.05mm, and the automatic inspection accuracy is accurate from 0.2% to 0.05%.

After the system is put into use, it will greatly improve the quality and efficiency of the State Grid Jiangsu Electric Power Company in smart meter type detection, and improve the testing capabilities of the Jiangsu Metrology Laboratory. In the next step, Jiangsu Academy of Science and Technology will focus on how to apply the scale of the three-dimensional laser detection technology of the meter type to the automated inspection line as the pre-stage of the automated detection line on the smart meter to realize the automatic detection of the type size of the batch smart meter and further improve automation. Detection line detection reliability, detection efficiency, reduce manual operating costs.