Signal transmission and reception system, installation method of the system, and plant applied with the system
First Claim
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1. A signal transmission and reception system comprising:
- a transmitter that transmits a signal by radio; and
receivers that wirelessly receive the signal from the transmitter and transmits the signal to a monitoring and control device of a plant through a transmission cable connecting the receivers to the monitoring and control device,wherein the transmitter and the receivers are installed in the plant, and wherein the receivers are attached to an annular cable tray for laying a cable other than the transmission cable provided in the plant and surrounding the transmitter from an entire periphery of the annular cable tray.
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Abstract
A signal transmission and reception system includes a transmitter adapted to transmit a signal by radio, and a receiver adapted to wirelessly receive the signal from the transmitter and transmit the signal to a monitoring and control device of a plant through a transmission cable connecting the receiver to the monitoring and control device, wherein the transmitter and the receiver are provided in the plant, and wherein the receiver is attached to a cable tray used to lay a cable other than the transmission cable.
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Citations
16 Claims
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1. A signal transmission and reception system comprising:
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a transmitter that transmits a signal by radio; and receivers that wirelessly receive the signal from the transmitter and transmits the signal to a monitoring and control device of a plant through a transmission cable connecting the receivers to the monitoring and control device, wherein the transmitter and the receivers are installed in the plant, and wherein the receivers are attached to an annular cable tray for laying a cable other than the transmission cable provided in the plant and surrounding the transmitter from an entire periphery of the annular cable tray. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A plant comprising:
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a device electrically-connected to a power source through a power supply cable laid on an annular cable tray for laying the power supply cable and driven by a power supply supplied from the power source; a transmitter that transmits a signal by radio; and receivers that wirelessly receiver the signal from the transmitter, transmits the signal to a monitoring and control device of the plant through a transmission cable connecting the receivers to the monitoring and control device, and is attached to the annular cable tray, wherein the receivers surround the transmitter from an entire periphery of the annular cable tray. - View Dependent Claims (15)
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16. An installation method of a signal transmission and reception system, comprising:
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installing, in a plant including a device driven by a power supply supplied from a power source through a power supply cable and an annular cable tray for laying the power supply cable, a transmitter that transmits a signal by radio; installing, on the annular cable tray, receivers that wirelessly receive the signal from the transmitter and transmits the signal to a monitoring and control device of the plant through a transmission cable connecting the receiver to the monitoring and control device, so as to surround the transmitter, by the receivers, from an entire periphery of the annular cable tray; and connecting the receivers to the monitoring and control device by the transmission cable and laying the transmission cable on the annular cable tray.
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Specification