Accidental-shutdown-proof switch control apparatus and method for robot-assisted surgical device

A method for controlling an on/off control device, the on/off control device comprising an on/off key configured to trigger a start action or a shutdown action, an on/off control module configured to detect the shutdown action of the on/off key and obtain a shutdown intention through man-machine interaction, and an on/off hardware circuit configured to send a signal for cutting off power supply based on a hardware shutdown signal triggered by the on/off key and a shutdown control signal sent by the on/oft control module, the method comprising:

• detecting, by the on/off hardware circuit, the shutdown action of the on/off key;
• obtaining, by the on/off control module, the shutdown action of the on/off key;
• obtaining, by the on/off control module, shutdown intention through man-machine interaction;
• and
• sending, by the on/off hardware circuit, based on the hardware shutdown signal triggered by the shutdown action and the shutdown control signal sent by the on/off control module, the signal for cutting off the power supply,
• wherein:
• the on/off hardware circuit comprises a first relay, a second relay, a third relay, and a fourth relay;
• a control coil of the first relay, a closed contact of the second relay, a parallel connection of an open contact of the first relay and a closed contact of the third relay are connected in series with the on/off key;
• a control coil of the second relay, a closed contact of the first relay, an open contact of the fourth relay, a parallel connection of an open contact of the second relay and an open contact of the third relay are connected in series with the on/off key;
• and
• a control coil of the third relay, the closed contact of the second relay, the parallel connection of the open contact of the first relay, and the open contact of the third relay are connected in series.

A robot-assisted surgical device, comprising:

• at least one functional module;
• a man-machine interaction module configured to receive a shutdown intention from an operator;
• and
• an on/off control device configured to control power supply of the at least one functional module, the on/off control device comprising:
• an on/off key configured to trigger a start action or a shutdown action;
• an on/off control module configured to detect the shutdown action of the on/off key and obtain the shutdown intention through the man-machine interaction module;
• and
• an on/off hardware circuit configured to send a signal for cutting off power supply based on a hardware shutdown signal triggered by the on/off key and a shutdown control signal sent by the on/off control module,
• wherein:
• the on/off hardware circuit comprises a first relay, a second relay, a third relay, and a fourth relay;
• a control coil of the first relay, a closed contact of the second relay, and a parallel connection of an open contact of the first relay and a closed contact of the third relay are connected in series with the on/off key;
• a control coil of the second relay, a closed contact of the first relay, an open contact of the fourth relay, and a parallel connection of an open contact of the second relay, and an open contact of the third relay are connected in series with the on/off key;
• and
• a control coil of the third relay, the closed contact of the second relay, and the parallel connection of the open contact of the first relay, and the open contact of the third relay are connected in series.