基于无线电缆的电梯智能故障诊断系统研究

Intelligent fault diagnosis system for elevator based on wireless cable

为了解决随行电缆中存在的故障排查困难、线缆易疲劳断裂,以及在电梯控制系统运行中发生故障时及时发现和排除系统故障等问题,对电梯控制系统进行了研究,将无线通讯技术应用到电梯主控制板与轿厢控制板通讯中,实现了电梯无随行电缆化;在无线电梯安全回路的设计上采用了4个继电器将机房安全回路与轿厢安全回路串联在一起,在硬件电路设计上采用了以STM32W108芯片为核心的Zig Bee无线模块作为通讯模块;在无线电梯控制系统中还集成了一套基于专家系统的智能故障诊断系统;通过搭建实验平台进行了实验测试。实验结果表明:该故障诊断系统无线通讯正常,安全回路故障诊断无误。

In order to solve the problem of the difficult in travelling cable troubleshooting,cable fatigue fracture and faults in the elevator control system timely detect and troubleshoot,the elevator control system was studied,the wireless communication was applied in car communication between the host controller of elevator and the car controller. The no traveling cable in the elevator was a chieved. In the design of wireless elevator safety loop,four relays were used to connect the computer room safety loop to the car safety loop. In the hardware circuit design,the Zig Bee wireless module with STM32W108 chip as the core was used as the communication module. In the wireless elevator control system,a set of intelligent fault diagnosis system based on expert system was also integrated. The experimental test was carried out by building an experimental platform. The experimental results show that the wireless communication of the system is normal and the fault diagnosis of the security loop is unmistakable.