Remote engine starting and stopping device for construction machine

A remote engine starting and stopping device for a construction machine, which is capable of starting an engine incorporated in the construction machine from a remote location and stopping an operation of the engine after a prescribed time has elapsed, the device comprising:

• transmitting means separate from the construction machine, for transmitting a start signal for starting the engine to the construction machine;
• wherein the construction machine comprises:
• receiving means for receiving the start signal transmitted from the transmission means;
• safety condition detecting means for detecting that a safety condition for unmanned operation of the construction machine is satisfied;
• engine starting means for driving a starting device of the engine when the start signal is received by the receiving means and when the safety condition detecting means detects that the safety condition for unmanned operation of the construction machine is satisfied;
• engine stopping means for driving a stopping device of the engine;
• operating condition detecting means for detecting a plurality of conditions are satisfied which indicate that the engine is rotating;
• timer means for causing the engine stopping means to drive the engine stopping device at a time point where a prescribed time has elapsed after driving of the engine starting device by the engine starting means;
• and
• alarm signal output means for outputting an alarm signal indicating that the engine has not stopped when, after the engine stopping device has been driven by the engine stopping means, the operating condition detecting means detects that the engine is operating.

A remote engine starting and stopping device for a construction machine, which is capable of starting an engine incorporated in the construction machine from a remote location and stopping an operation of the engine after a prescribed time has elapsed, the device comprising:

• transmitting means separate from the construction machine, for transmitting a start signal for starting the engine to the construction machine;
• wherein the construction machine comprises:
• receiving means for receiving the start signal transmitted from the transmission means;
• safety condition detecting means for detecting that a safety condition for unmanned operation of the construction machine is satisfied;
• engine starting means for driving a starting device of the engine when the start signal is received by the receiving means and when the safety condition detecting means detects that the safety condition for unmanned operation of the construction machine is satisfied;
• unmanned state detecting means for detecting a state in which the engine is rotating in accordance with an engine start signal transmitted from the transmitting means;
• unmanned condition detecting means for detecting that the construction machine is in an unmanned condition;
• and
• engine stopping means for driving a stopping device of the engine under a condition that the unmanned condition detecting means has detected the unmanned condition, when the stopping signal has been received by the receiving means.

A remote engine starting and stopping device for a construction machine, which is capable of starting an engine incorporated in the construction machine from a remote location and stopping an operation of the engine after a prescribed time has elapsed, the device comprising:

• transmitting means separate from the construction machine, for transmitting a start signal for starting the engine to the construction machine;
• wherein the construction machine comprises:
• receiving means for receiving the start signal transmitted from the transmission means;
• safety condition detecting means for detecting that a safety condition for unmanned operation of the construction machine is satisfied;
• engine starting means for driving a starting device of the engine when the start signal is received by the receiving means and when the safety condition detecting means detects that the safety condition for unmanned operation of the construction machine is satisfied;
• unmanned condition detecting means for detecting that the construction machine is in an unmanned condition;
• operation condition detecting means for detecting a plurality of conditions are satisfied which indicate that the engine is rotating;
• and
• answer back signal outputting means for outputting an answer back signal indicating that the engine is in the rotating condition, under a condition that, when said answer back signal has been received by the receiving means, the unmanned condition detecting means has detected the unmanned condition and the operating condition detecting means has detected that the engine is in the rotating condition.

A remote engine starting and stopping device for a construction machine, which is capable of starting an engine incorporated in the construction machine from a remote location and stopping an operation of the engine after a prescribed time has elapsed, the device comprising:

• transmitting means separate from the construction machine, for transmitting a start signal for starting the engine to the construction machine;
• wherein the construction machine comprises:
• receiving means for receiving the start signal transmitted from the transmission means;
• safety condition detecting means for detecting that a safety condition for unmanned operation of the construction machine is satisfied;
• engine starting means for driving a starting device of the engine when the start signal is received by the receiving means and when the safety condition detecting means detects that the safety condition for unmanned operation of the construction machine is satisfied;
• operation condition detecting means for detecting a plurality of conditions are satisfied which indicate that a plurality of conditions are satisfied indicating that the engine is rotating normally;
• timer means for causing the engine to operate, when the operation condition detecting means detects that the engine has been operated after the engine starting device has been driven by the engine starting means, from the time point of the detection until a redetermined time has elapsed;
• and
• engine stopping means for driving a stopping device of the engine when, after the engine starting device has been driven by the engine starting means, the operating condition detecting means ceases to detect that the engine is in a rotating condition.