JPS58108839A - Optical space propagating system - Google Patents

Abstract

PURPOSE:To realize office automation which is controlled by a small output and very economical, and has high safety with regard to an optical space propagation system which transmits beams of light through the space,by scattering beam light from a master station satellite at a subrodinate satellite and then sending it to a terminal device. CONSTITUTION:A master station satellite 6 is installed at a prescribed position of a ceiling 1 and plural subordinate station satellites 8 are fitted to the ceiling corresponding to centralized terminal devices 5; and a beam 7 transmitted from the master station satellite 6 is photodetected by the subordinate station satellites 8, which scatter the photodetected beams 7 to send scattered beams 4, thus controlling the terminal devices 5 corresponding to the subordinate station satellites 8. Therefore, the control is performed by the small output of the beams 4 because the distance of the subordinate station satellite 8 and terminal device is relatively short, so the output of the master station satellite 6 may be small.

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to an optical space propagation method for transmitting light M to a terminal device through space, and particularly relates to an optical space propagation system that transmits light M to a terminal device through space, and particularly relates to an optical space propagation system that transmits light M to a terminal device through space, and particularly relates to an optical space propagation method that uses a master station satellite and a slave station satellite. It is related to the spatial propagation method.

(2) Background of the technology In recent years, as part of office automation, there has been a trend to control each terminal device using a spatial propagation method using satellites. However, when trying to control multiple terminal devices in an office with a single satellite station, a high-output light emitting element is required, and such a high-output light emitting element is expensive, short-lived, and poses safety problems. Therefore, safe and long-life satellites are highly desired.

(8) Prior art and problems Figure 1 is a schematic configuration diagram for explaining the conventional optical sky 115trX system, in which 1 is the ceiling, 2 is the floor, 8 is a satellite station installed on the ceiling l, 4 is a light beam scattered from the satellite station 8, and 5 is a terminal device controlled by the light beam 4.

Each terminal device 5 is controlled by scattered light @ 4 from a light emitting element (not shown) of a satellite station 8 installed on the ceiling l, but the scattered light 4 of the light emitting element is transmitted to each terminal device 51 - It is well known that the ray 4 subtracts depending on the distance to 54. Therefore, the satellite station 8
The output required is sufficient to control the farthest terminal device @54. Therefore, the light emitting element needs to have a large output corresponding to this output. Therefore, the satellite station 8 is expensive and has a short lifespan, making it uneconomical.
had the problem of causing physical damage due to its large output.

(4) Purpose of the Invention In view of the above-mentioned conventional problems, the present invention consists of a satellite consisting of a master station satellite and a plurality of slave station satellites, and the core slave station satellite is arranged on the ceiling l corresponding to where each terminal device 5 is installed. A directional beam light is transmitted between the master station satellite and the slave station satellite, and the terminal bag t! is transmitted by the scattered light beam of the slave station satellite. The purpose of the present invention is to provide a novel spatial light propagation method that controls the transmission speed.

(5) Structure of the Invention In order to achieve the above-mentioned object, the present invention provides an optical space propagation method in which a light beam from a satellite is transmitted to a terminal device through space, and the satellite is connected to a master station satellite and a slave station satellite. This is achieved by an optical space propagation method characterized in that the beam light from the master station satellite is converted into scattered light by the nuclear slave station satellite and sent to the terminal device.

(6) Embodiments of the Invention Hereinafter, embodiments of the optical space propagation system according to the present invention will be described in detail with reference to the drawings.

FIG. 2 is a schematic configuration diagram for explaining one embodiment of the present invention, and parts equivalent to those in FIG. 61 are designated with the same reference numerals. 6 is the master station satellite, 7 is the master station satellite 6
This is a directional beam that is transmitted to the slave station satellite 8.

A master station satellite 6 is installed at a predetermined position on a ceiling 10, and a plurality of slave station satellites 8 are connected to a centrally installed terminal device 5.
It transmits the beam 7 from the master station satellite 6, the slave station satellite 8 receives the beam 7, and the slave station satellite 8 converts the received beam 7 into scattered light. 4, said 4. Child station satellite 8
control the terminal device i5 corresponding to the terminal device i5. Therefore, since the distance between the slave station satellite 8 and the terminal device is relatively short, the output of the light beam 4 can be controlled at a low level, so that the output of the master station satellite 6 may also be small.

Although the present embodiment has been described with reference to two slave station satellites 8, the number may correspond to the number of installed groups of terminal devices 5. Furthermore, although the slave station satellite 8 is designed to control two terminal devices, it is also possible to control one terminal device or a plurality of terminal devices as long as they are installed close to each other. Furthermore, regarding the child station prite, change the light No. 11 from the master station satellite to lIf[and change it again to the light No. 1
It may also be possible to send it out instead of No. 8.

(7) Effect of @Ming As is clear from the above explanation, the optical space propagation method according to the present invention can be controlled with a smaller output than the conventional optical space propagation method, making it more economical and safer. We can look forward to the realization of highly functional office automation.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram for explaining a conventional optical space propagation method, and FIG. 2 is a schematic configuration diagram for explaining an embodiment of the optical space propagation method according to the present invention. In the figure, 1 is the ceiling, 2 is the floor, 8Fi satellite station,
4 is a scattered light beam, 5 and 51 to 54 are terminal devices, 6 is a master station satellite, 7 is a beam beam, 8 is a slave station satellite,
shows.

Claims (1)

[Claims] In an optical space propagation method that sends light from a satellite to a terminal device through space, the satellite is equipped with a master station satellite and a slave station satellite, and the beam source from the master station satellite is converted into scattered light by an internucleon satellite. , an optical space propagation method characterized by transmitting data to a terminal device.