Abstract: A wireless communication system includes a plurality of base stations that can switch to either first or second communication method and that communicates wirelessly with terminals by the switched communication method and a control apparatus that manages the plurality of base stations. The control apparatus includes: an acquisition unit that acquires, from each base station, throughput of the base station and RSSI of each terminal that communicates wirelessly with the base station; and a switch instruction unit that instructs to each base station switch the current communication method when there is, among the plurality of base stations, a base station in which throughput has decreased within fixed interval, and instructs to re-switch to the communication method before switching to base stations in which throughput before and after switching of communication method is same but a specific standard, based on RSSI after switching of communication method, is not satisfied.

Abstract: A wireless communication system includes a plurality of base stations that are capable of switching to either a first communication method or a second communication method and that carry out wireless communication with terminals by the switched communication method and a control apparatus that manages the plurality of base stations. The control apparatus includes an acquisition unit that acquires information of throughput of each of the plurality of base stations and a switching instruction unit that instructs switching of the current communication method to each of the plurality of base stations when there is a base station in which throughput drops within a fixed interval among the plurality of base stations, and that further instructs re-switching to the communication method that preceded switching to base stations in which throughput dropped from before to after switching communication method among the plurality of base stations.

Abstract: A wireless communication system includes a first communication apparatus that uses first frequency band to communicate wirelessly by time division method, a second communication apparatus that uses second frequency band adjacent to the first frequency band to communicate wirelessly by time division method, and a router apparatus that relays data communicated wirelessly in the first and second communication apparatus.

Abstract: A wireless communication system includes a plurality of base stations that can switch to either first or second communication method and that communicates wirelessly with terminals by the switched communication method and a control apparatus that manages the plurality of base stations. The control apparatus includes: an acquisition unit that acquires, from each base station, throughput of the base station and RSSI of each terminal that communicates wirelessly with the base station; and a switch instruction unit that instructs to each base station switch the current communication method when there is, among the plurality of base stations, a base station in which throughput has decreased within fixed interval, and instructs to re-switch to the communication method before switching to base stations in which throughput before and after switching of communication method is same but a specific standard, based on RSSI after switching of communication method, is not satisfied.

Abstract: A wireless communication system includes a first communication apparatus that uses first frequency band to communicate wirelessly by time division method, a second communication apparatus that uses second frequency band adjacent to the first frequency band to communicate wirelessly by time division method, and a router apparatus that relays data communicated wirelessly in the first and second communication apparatus.

Abstract: A wireless communication system includes a plurality of base stations that are capable of switching to either a first communication method or a second communication method and that carry out wireless communication with terminals by the switched communication method and a control apparatus that manages the plurality of base stations. The control apparatus includes an acquisition unit that acquires information of throughput of each of the plurality of base stations and a switching instruction unit that instructs switching of the current communication method to each of the plurality of base stations when there is a base station in which throughput drops within a fixed interval among the plurality of base stations, and that further instructs re-switching to the communication method that preceded switching to base stations in which throughput dropped from before to after switching communication method among the plurality of base stations.

Abstract: A fully hydraulic power steering apparatus provided with a hydraulic power cylinder driven by turning a steering wheel to provide rear wheels of an industrial vehicle with a pivoting motion, to thereby steer the vehicle, and an error correcting unit for mechanically correcting an error between an angle of turn of the steering wheel and a corresponding stroke motion of the hydraulic power cylinder. The error correcting unit mechanically derives respective linear movements from the angle of turn of the steering wheel and the corresponding stroke of the power cylinder, and utilizes a difference between both mechanical linear movements for operating a directional control valve for controlling a flow of a pressurized oil supplied from a power steering valve unit toward the power cylinder to correct the amount of the stroke of the power cylinder with respect to the amount of angle by which the steering wheel is turned.