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要防止无线电干扰,防止机器人和数控机床的误动作,就要严格限制许可发射的电波强度,目前广泛使用窄频带FM无线电机,可通信的距离十分短。针对这一问题,日本东北大学通信研究所最近研制成功利用微弱电波进行长距离通信的无线电收发两用机,该机应用了通信频率扩散方式,使通信距离比原有的机器提高了10倍。它特别适用于自动化机器和无人运输车的控制,无线电情报
In order to prevent radio interference and prevent the robot and CNC machine tool from malfunctioning, it is necessary to strictly limit the radio wave intensity allowed to be transmitted. At present, the narrow frequency band FM radio is widely used, and the communication distance is very short. In response to this problem, the Institute of Communication, Tohoku University has recently developed a radio transceiver that uses weak radio waves for long-distance communications. This machine uses a communication frequency diffusion method to increase the communication distance by a factor of 10 over the original one. It is particularly suitable for the control of automated machines and unmanned vehicles, radio intelligence