JPH01209825A - Signal transmission system in skyscraper - Google Patents

Abstract

PURPOSE:To send a signal without installation of a wired cable between different floors by providing a radio line along the wall face of a skyscraper between a 1st antenna and a 2nd antennas respectively. CONSTITUTION:A parabolic antenna 1 is installed at the outside of a wall face via a window of the uppermost window of the skyscraper and a radio communication equipment 2 is installed on the uppermost floor. Moreover, parabolic antennas 3-1-3-N are installed sequentially at the outside of the wall face via the window of each floor below the uppermost floor, and radio communication equipments 4-1-4-N are installed respectively to each floor. Then a base band switch matrix 23 demultiplexes a data signal for each terminal equipment at the uppermost floor in each data signal demultiplexed from a multiplexer/demultiplexer 22, rearranges each remaining data signal and outputs the result to the multiplexer/demultiplexer 22 together with the data signal from each terminal equipment at the uppermost floor to the other floors.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a signal transmission system within a high-rise building, and more particularly to a signal transmission system within a high-rise building that transmits signals between different floors.

[Conventional technology]

High-rise buildings (such as so-called intelligent buildings, large-scale hospital buildings, large-scale apartment buildings, and department store buildings)
In high-rise buildings (hereinafter referred to as high-rise buildings), a large number of terminal devices for inputting and outputting data signals, audio signals, video signals, etc. are installed on each floor. Transmission of these signals within each floor can be easily performed using wired cables such as conductive cables and optical cables. Conventional high-rise building signal transmission systems also use wired cables to transmit signals between different floors.

[Problem to be solved by the invention]

The conventional signal transmission system in a high-rise building described above has a large number of floors and the number of terminal devices on each floor, and the number of terminal devices interconnected between different floors or the number of terminal devices connected to the communication line input/output to the high-rise building is large. As the number of wired cables increases, the number of wired cables that go back and forth between floors also increases, and their length in the vertical direction is also long, making it difficult to install or expand the number of wired cables.

An object of the present invention is to provide a signal transmission system within a high-rise building that does not require laying wired cables for signal transmission between different floors.

[Means to solve the problem]

The in-high-rise building signal transmission system of the present invention includes a first antenna provided outside the wall surface of either the top floor or the bottom floor of the high-rise building, and a first antenna connected to the first antenna. A wireless communication device, a second antenna provided outside the wall surface of each required floor opposite to the first antenna, and a second wireless communication device connected to the second antenna. There is.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a front view of a high-rise building in which the embodiment shown in FIG. 1 is installed.

The embodiment shown in FIG. 1 connects a parabolic antenna l installed outside the wall through a window on the top floor of a high-rise building, a wireless communication device 2 installed on the top floor, and a wireless communication device 2 installed on the top floor through the windows on each floor below the top floor. Parabolic antennas 3-1 installed sequentially outside the wall
Wireless communication device 4 installed on each floor where 3-N and parabolic antennas 3-1 to 3-N are installed.
-1 to 4-N. however,(
N+1) is the number of floors of a high-rise building. Furthermore, all of the parabolic antennas 3-1 to 3-N are opposed to the parabolic antenna 1.

The wireless communication device 2 includes a wireless transmitter/receiver 21 connected to a parabolic antenna l, and a multiplexer/receiver connected to the wireless transmitter/receiver 21.
It is configured to include a demultiplexing device 22 and a baseband switch matrix 23 connected to the multiplexing/demultiplexing device 22. The baseband switch matrix 23 is also connected to each terminal device (not shown) on the top floor that exchanges data signals with other floors.

The radio transmitting/receiving devices 4-1 to 4-N are parabolic antennas 3
-1 to 3-N, and a multiplexing/demultiplexing device 42 connected to the wireless transmitter/receiver 41 and each terminal device (not shown) on each floor that exchanges data signals with other floors. It is configured with.

Each multiplexing and demultiplexing device 42 multiplexes and demultiplexes data signals input and output from each connected terminal device using the TDM method within the respective assigned time slots, and transmits data signals to the wireless transceiver 4.
1. Parabolic antennas 3-1 to 3-N, parabolic antenna 1. Multiplexing/demultiplexing device 22 via wireless transceiver 21
Multiple connections are made using the TDMA method.

The Pace Budsui and Chimatrix 23 separates and outputs the data signals destined for each terminal device on the top floor among the data signals separated and output by the multiplexing/separating device 22, rearranges the remaining data signals, and outputs the data signals for each terminal device on the top floor. By outputting data signals from each terminal device to the multiplexing/demultiplexing device 22 together with data signals to other floors, data signals exchanged by each terminal device between different floors are relayed and exchanged.

With reference to Figure 2, parabolic antennas 1 and 3-1~
The arrangement of 3-N will be explained.

A parabolic antenna 1 is arranged outside a window on the top floor so that the center of its antenna pattern A faces directly below. The parabolic antennas 3-1 to 3-N are placed outside the window on each floor at a position that almost matches the shape of the antenna pattern A of the parabolic antenna L, with the center direction of each antenna pattern facing the direction of the parabolic antenna 1. Place it in By arranging each parabolic antenna in this way and using the same parabolic antennas 3-1 to 3-N, the transmission loss of each radio signal between the radio transceiver 21 and each radio transceiver 41 can be reduced. They can be made almost equal.

When each terminal device communicates with the outside of the high-rise building via a satellite communication earth station installed on the roof of a high-rise building, the data signal input/output terminal of the satellite communication earth station is also connected to the baseband switch matrix 23. In addition, when each terminal device communicates with the outside of the high-rise building via a multi-core cable drawn into the lowest floor of a high-rise building, antenna 1 and wireless communication device 2 are placed on the lowest floor, and antenna 3 is placed on the other floors. -1 to 3-N and wireless communication devices 4-1 to 4-N are installed, and multicore cables are connected to the baseband switch matrix 23.

The embodiment shown in FIG. 1 and its modifications have been described above.

Note that although the above-described embodiment uses both the TDM method and the TDMA method, it is also possible to use the FDM method instead of the TDM method, and it is also possible to use the FDMA method instead of the TDMA method. When using the FDM system or FDMA system, a carrier band switch matrix can be provided between the radio section and the modulation/demodulation section of the radio transceiver 21 to perform relay exchange in the carrier band. It is also possible to use relay exchange and relay exchange in the baseband band together.

The high-rise building self-communication system of the present invention can also be used to distribute satellite broadcast reception signals received by a satellite broadcast receiver installed on the roof of a high-rise building to each floor. In this case, the second
Arrange the antennas as shown in the diagram, connect the wireless transmitter that retransmits the satellite broadcast reception signal to the antenna on the top floor, and connect the wireless transmitter and receiving line receiver to the antennas on each other floor. Then, the demodulated output signal of each radio receiver is branched for each floor and supplied to each image receiving device on that floor.

〔Effect of the invention〕

As explained above, the present invention eliminates the need to lay wired cables between different floors by providing a wireless line along the wall of a high-rise building between a first antenna and each second antenna. It has the effect of transmitting signals, and
Since the direction of propagation of the radio waves of each radio line along the wall can be made closer to the vertical direction, there is an effect that interference between each of these radio lines and other terrestrial radio lines or satellite communication lines can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a front view of a high-rise building in which the first embodiment is installed. 1... Parabolic antenna, 2... Wireless communication device, 3-1 to 3-N... Parabolic antenna % 4-1 to 4-N... Wireless communication device. Agent Patent Attorney Oto Uchihara

Claims (2)

[Claims] (1) A first antenna provided outside the wall of either the top floor or the bottom floor of a high-rise building, a first wireless communication device connected to the first antenna, and the first antenna. A high-rise building signal comprising: a second antenna provided outside the wall of each required floor, facing each other; and a second wireless communication device connected to the second antenna. Transmission method. (2) The first wireless communication device has a relay exchange function that separates the received multiplexed signal, rearranges each separated signal, multiplexes and transmits the rearranged signals, and The in-high-rise building signal transmission system according to claim 1, wherein the wireless communication device is a multiplex wireless transmitter/receiver device.