Bridge Crane Gauge Detection Device Design

If the bridge crane have operated under the environment of a heavy load for along time, ground subsidence and other factors may cause the track horizontally orvertically deformed, which will leads to an unstable driving operation, even will leadto industrial accidents in some severe cases. Therefore, regular safety inspection isnecessary for the bridge crane. Among them, the gauge deviation detection is one ofthe important test items. Currently, bridge crane gauge measurement method is alwaysusing manual measurements, not only time-consuming, and inefficient, high-risk.Based on the national test standard on bridge cranes, developing automatic devices ofbridge cranes gauge deviation detection, achieving gauge deviation detectionautomatically on line, the development of automatic detection is the inevitable trend.This paper presents an automated overhead crane gauge deviation detectionscheme, and designed a site measuring devices according to the program. The deviceis based on Kenties60series of ARM chips and embedded real-time operating systemof μC/OS-II development, to ensure the stability and the real-time nature of thesystem. This paper focuses on the detection scheme of gauge deviation test device, thefunctions, design and implementation. In the respect of hardware circuit, the using ofMK60DN512ZVLL microprocessor （32-bit and Cortex-M4core）as the controlcenter, combining laser displacement sensor, display, input, storage and otherequipment to achieve the design of the hardware device. Mainly to complete thecircuit schematic and PCB design version, the smallest microprocessor system design,power module design, and communication circuit design. On the software side, tosatisfied the function needs for the device, the introduction of μC/OS-II embeddedoperating system to complete the multi-task scheduling, and the μC/GUI interfaceachieved human-computer interaction and FatFs file system achieved to store files ofSD card, and implements the corresponding software function code. After building aprototype system，the field test results show that the precision of the system is already meet the national standard gauge measurements for bridge cranes, the device isreliable and has good stability, which satisfied the needs of field testing. In addition,proposed improvement suggestions for the system to further optimizations andcomplements.