双光控定时器刘志平王秋君（华南理工大学广州市５１０６４１）１特点双光控定时器内设主副两机。主机工作时，副机处于守候状态。主机一旦失灵，副机即投入运行，转换过程瞬间完成，不掉电，不灭灯。此后主机自行锁定，副机取代其工作。两机均设有故障显示，灯管人员可在... Double light control timer Liu Zhiping Wang Qiujun (South China University of Technology, Guangzhou 510641) 1 Features Double light control timer equipped with two primary and secondary. When the host is working, the slave is waiting. Once the host fails, the auxiliary machine is put into operation, the conversion process is completed instantly, do not power down, do not turn off the lights. Since then the host lock, vice machine to replace their work. Two machines are equipped with fault display, lamp staff in ...