Patent ID: 8280532

Claim:
A remote control system for remotely controlling a target object in a distant location via a network, the remote control system comprising: a host-side control unit to which operational information of the target object is input; and a client-side control unit which is connected to the host-side control unit via the network and feedback controls the state of the target object towards a target value received from the host-side control unit, wherein the client-side control unit includes: a target value memory unit to store the target value received from the host-side control unit, the target value memory unit to further store the target value sent by the host-side control unit at a latest time among the target values received by the client-side control unit as the latest target value of the target object; an area setting unit for setting at least two areas representative of a group of states of the target object each of which changes over time by the feedback control within a state space representative of the state of the target object; and a state-evaluation information sending unit for sending, to the host-side control unit, a state evaluation information which is obtained by evaluating the state of the target object based on the area set by the area setting unit, and the host-side control unit includes: a target value setting unit for setting the target value such that the state of the target object changes within the area set by the area setting unit based on the input operational information of the target object; a target value updating unit for updating the target value based on the state evaluation information received from the client-side control unit; and a target value sending unit for sending the target value to the client-side control unit; wherein the client-side control unit is adapted to detect delay, loss and distortion of data based on a sending time at which the host-side control unit sends the target value and a receiving time at which the client-side control unit receives the target value, and wherein, when data loss through delay, loss and distortion is detected, the target value stored in the target memory unit does not change.