Metrology automated seal system put into operation

As of December 23, 2014, under the active debugging of the measurement staff of the State Grid Tianjin Electric Power Research Institute, the two-dimensional code laser engraving system (hereinafter referred to as the seal line) of the manual sampling area electric energy meter realized zero defects in the electric energy measurement and testing base. Operation indicates that the seal line has been officially put into operation.

The metering base seal line is designed for manual verification of single-phase, three-phase smart energy meters and acquisition terminals, and is designed by snap-type sealing and sealing, automatic laser engraving of two-dimensional codes and binding. It can carry out automatic laser engraved two-dimensional code binding on single three-phase smart electricity meters, concentrators, collection terminals (providing packing, group data), etc., which are qualified after inspection, and are used in packing groups. The automatic docking of the AGV transport system and the warehousing system enables the automatic warehousing of seals.

According to reports, the automated inspection line has an annual quantitative inspection of 9.6 million units, including 8 million single-phase smart meters, 800,000 three-phase smart meters, 600,000 low-voltage current transformers, and 200,000 collection terminals.

A total of 34 robots and 207 verification devices are equipped on the ultra-large-scale automated inspection line, and each robot serves 4 to 6 verification devices. The inspection line relies on standardized leading-level control, single-table modular design, three-dimensional real-time simulation and other domestic leading technologies to achieve unified control and intelligent scheduling of various types of devices. Taking the single-phase smart meter as an example, the length of the inspection period was shortened from 90 minutes to 75 minutes, and the efficiency was significantly improved compared to the manual inspection table mode.

Compared with the traditional automated pipeline verification system, in the new verification mode of robots, automated test benches, and self-guided trolleys, the robot is responsible for attaching or unloading the power meter to the automatic verification device and the unmanned person responsible for transporting the meter. The self-guided trolleys shuttle freely on the side, which not only increases the number of verifications per unit area, but also reduces the impact of faults on the quality and efficiency of inspections, and can better serve ultra-large-scale inspection and distribution. State Grid Tianjin Electric Power Company adopts a three-level monitoring method of "overall monitoring, regional inspection, and unit control" to ensure the safety of equipment operation. In the event of a failure, the dispatch system will automatically send information, greatly improving emergency response and troubleshooting efficiency. In addition, the company's first inspection line 3D inspection system has realized 3D real-time simulation of scenes and data on the inspection scene, making the production area inspection work more intuitive.

Faced with many challenges in the new field of industrial automation, the Tianjin Institute design team worked together, conducted extensive research, pioneered and innovated, and integrated the advanced technologies of logistics transportation, robotics, automatic control, sensing and detection, image recognition, and network communications to integrate intelligence. Treasury and single-phase three-phase energy meter ∕ current transformer verification, acquisition terminal detection system organic integration, to achieve the meter, transformers, acquisition terminals and other measuring instruments from the newly purchased warehouse, to be detected warehouse, loading verification, loading equipment The entire process of production operations such as boxes, box tables, storage and outbound delivery is intelligent, and the visual effects are specially designed. Each verification/inspection system uses robots to operate and connects to the warehouse through the AGV assembly line. The warehouse uses a high-speed stacker to achieve rapid access to the goods. RFID technology is used to ensure the entire process of asset tracking and management. Intelligent conveyor equipment is used for completion and verification.有机 Organic integration of the detection system.

The official operation of the sealing line provided powerful technical support for the successful commissioning of the manually-tested body of the measurement and inspection base of the Institute of Electrical Engineering, and also provided an effective supplement for the automated verification and maintenance of operations.