一、绪言安装起重机无线电操縱装置时,首先考虑的问题是:起重机在运载状态下是以高速运行的,无人操縱的超重机万一出现不可控制的情况,就有造成重大事故的可能性。另外从使用者的观点还考虑了如下几项要求。(1) 保证绝对安全,万一发生故障时起 I. INTRODUCTION The first consideration when installing a crane radio operator is that the crane is operating at high speed in the loaded state. Unmanned super-heavy machines have the potential to cause major accidents in the event of uncontrollable conditions. In addition from the user’s point of view also considered the following requirements. (1) To ensure absolute safety, in case of malfunction