Safety remote control device for e.g. mechanical lift, has portable electronic case and automatic electronic control circuit, each with two processors that utilize same carrier and implement respective digital and analog modulation modes

摘要

The device has a portable electronic case and an automatic electronic control circuit. The case and circuit communicate with each other using radio waves. Each of the case and the circuit has two processors (300, 305). The processors utilize the same carrier and same antenna of transmission/reception. The processors implement a digital modulation mode and an analog modulation mode, respectively.