| 摘要 |
The present invention is providing a method and an operating arrangement to effectively obtain protection detection of an object, especially a person, positioned close to a machine in motion or a moving part of a machine in the case of accidental collision or contact by the machine with the person without the use of any electric cabling arrangement between the person and the machine. This is accomplished by detecting an induced AC signal in the body of the person transferred to the machine at the moment of ohmic contact by utilization of an insulated conducting sensor surface covering the total surface of the machine. This sensor surface is connected to an electronic circuitry outputting signals to the power and controlling unit of the machine for stopping or reversing its motion in a case of dangerous contact between the machine and the object, i.e. a person. |
