在汽车装配自动化生产系统中，随着消费者对汽车质量的要求越来越高，生产人

在汽车装配自动化生产系统中，随着消费者对汽车质量的要求越来越高，生产人员对生产环境的要求越来越高，传统链式输送系统的噪音以及润滑油污染问题更加突现出来。近年来,随着科技发展,摩擦输送技术开始崭露头脚，摩擦输送系统具有结构简单、运行稳定、生产效率高、节约能源、低噪音和无油污等特点。在某汽车制造企业最近的产能提升项目中，已将汽车装配流水线原传统链式输送方式更新为摩擦输送方式。由于汽车装配线上摩擦输送系统的驱动单元分布较为分散，分别布置在各流水线体工艺段的入口、出口、上坡、下坡，自行段的拐弯处，直行段的每一个占位点，升降机出、入口、板链地坑内，空中输送轨道上。而且摩擦输送技术采用单元组合形式及摩擦驱动原理，每个驱动单元都需要动力电源电缆及电气控制电缆，所以摩擦输送系统要求驱动单元和电缆线多，相比其它传统的输送技术，这是摩擦输送技术最大的弱点。根据可靠性工程理论, 系统的结构越复杂, 组成系统的各类部件数量越多, 系统发生故障的可能性便越大。如等到突然发生故障, 才被迫停机修理, 会影响整个生产系统的正常进行, 严重降低生产效率，给企业带来损失。因此如何对摩擦输送系统的运行状态进行实时监测，将成为该汽车装配线后续的重点研究内容。

在汽车装配自动化生产系统中，随着消费者对汽车质量的要求越来越高，生产人员对生产环境的要求越来越高，传统链式输送系统的噪音以及润滑油污染问题更加突现出来。 近年来,随着科技发展,摩擦输送技术开始崭露头脚，摩擦输送系统具有结构简单、运行稳定、生产效率高、节约能源、低噪音和无油污等特点。 在某汽车制造企业最近的产能提升项目中，已将汽车装配流水线原传统链式输送方式更新为摩擦输送方式。 由于汽车装配线上摩擦输送系统的驱动单元分布较为分散，分别布置在各流水线体工艺段的入口、出口、上坡、下坡，自行段的拐弯处，直行段的每一个占位点，升降机出、入口、板链地坑内，空中输送轨道上。 而且摩擦输送技术采用单元组合形式及摩擦驱动原理，每个驱动单元都需要动力电源电缆及电气控制电缆，所以摩擦输送系统要求驱动单元和电缆线多，相比其它传统的输送技术，这是摩擦输送技术最大的弱点。 根据可靠性工程理论, 系统的结构越复杂, 组成系统的各类部件数量越多, 系统发生故障的可能性便越大。 如等到突然发生故障, 才被迫停机修理, 会影响整个生产系统的正常进行, 严重降低生产效率，给企业带来损失。 因此如何对摩擦输送系统的运行状态进行实时监测，将成为该汽车装配线后续的重点研究内容。

In the automatic production system of automobile assembly, with the increasing demands of consumers for automobile quality and production personnel for production environment, the problems of noise and lubricating oil pollution of traditional chain conveyor system are more and more prominent. In recent years, with the development of science and technology, friction conveying technology began to emerge. Friction conveying system has the characteristics of simple structure, stable operation, high production efficiency, energy saving, low noise and no oil pollution. In the recent production capacity improvement project of an automobile manufacturing enterprise, the original traditional chain transportation mode of automobile assembly line has been replaced by friction transportation mode. As the driving units of the friction conveying system on the automobile assembly line are relatively scattered, they are respectively arranged at the entrance, exit, uphill, downhill of each process section of the assembly line, the turning of the self-propelled section, each occupying point of the straight section, the elevator entrance, the plate chain pit, and the air conveying track. Moreover, the friction conveying technology adopts the unit combination form and the friction driving principle. Each driving unit needs power supply cable and electrical control cable, so the friction conveying system requires more driving units and cables. Compared with other traditional conveying technologies, this is the biggest weakness of the friction conveying technology. According to reliability engineering theory, the more complex the structure of the system, the more various components of the system, the more likely the system will fail. If we are forced to shut down the machine for repair when there is a sudden failure, it will affect the normal operation of the whole production system, seriously reduce the production efficiency and bring losses to the enterprise. Therefore, how to monitor the running state of the friction conveying system in real time will become the key research content of the automobile assembly line.<br>