JP2792300B2 - Information transmission method in buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transmitting information between upper and lower floors of a building, and more particularly to a method of transmitting information in a building which performs wireless communication in a vertical communication space of the building.

[0002]

2. Description of the Related Art In general, in a building, a wired transmission line is often constituted by a coaxial cable for information transmission. That is, a coaxial cable is appropriately laid on the ceiling, an electric shaft, or the like to form a network for information transmission by wire, and this network is formed for the entire area of the building.

[0003]

However, in a wired transmission line constituted by laying a coaxial cable, a large number of coaxial cables must be provided all over the building to form a network. There is a disadvantage that it is troublesome, and the work is not easy due to its complexity, resulting in poor workability and disadvantageous cost. Further, even if it is a local fire, if the coaxial cable constituting the main transmission line is thermally damaged, it is disadvantageous in that it has a great effect on the entire network.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a highly reliable building in which installation work can be performed easily and easily, which is advantageous for labor saving and advantageous in cost. An object of the present invention is to provide an information transmission method.

[0005]

In order to achieve the above object, according to the present invention, when information is transmitted between the upper and lower floors of a building, a space communicating between the upper and lower floors of the building is used as a transmission line for wireless communication,
A transmission antenna is arranged at one end of the transmission line to transmit directional radio waves toward the other end, and a radio wave absorbing means is arranged at the other end to prevent reflection and scattering of radio waves, and a reception antenna is provided between upper and lower floors. Is disposed on a transmission line to receive radio waves.

Further, the present invention is characterized in that the transmission path is an elevator shaft, a duct shaft, or a space along upper and lower outer walls of the building.

[0007]

According to the operation of the present invention, the space communicating between the upper and lower floors of a building is a transmission path for wireless communication, and a transmission antenna is arranged at one end of the transmission path to direct directional radio waves to the other end. In the transmission path, it is possible to receive radio waves on any floor between the upper and lower floors, and the wireless communication is performed between the desired antenna and the receiving antenna arranged toward the transmission path. Communication takes place. Therefore, information to be transmitted can be transmitted to a desired floor between the upper and lower floors. Further, since the radio wave absorbing means is disposed at the other end of the transmission path, the directional radio wave reaching the end is not reflected or scattered, and thus interference can be prevented.

[0008] As the transmission path, an elevator shaft, a duct shaft, and a space along the upper and lower outer walls of the building can be used.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a sectional view of a main part of a membrane dome showing a preferred embodiment of the present invention, and FIG. 1 schematically shows a peripheral wall portion of the membrane dome.

This membrane structure dome 1 surrounds a field 2 with a substantially cylindrical structure 3 and a roof 4 having a membrane structure.
, And can be used for multiple purposes because the roof 4 does not affect the weather.

The structure 3 is a so-called building having a number of floors in a layered structure. In this embodiment, the structure 3 is constructed on a five-story structure with one floor underground and four floors above ground. In this structure 3, a plurality of elevator shafts 5 extend to communicate with all floors, and duct shafts 6 also extend to communicate with all floors.

In the present invention, a transmitter 7 for transmitting information is installed on the rooftop 30 of the structure 3, and information transmission is performed by wireless communication with a receiver 8 installed on a desired floor. It is supposed to do it.

That is, when information is transmitted between the upper and lower floors of the structure 3, a space communicating between the upper and lower floors of the structure 3 is used as a transmission path for wireless communication. The space along the top and bottom of the outer wall 3 is a transmission path S. Then, the transmission antenna 70 is disposed at one end of the transmission path S, and the directional radio wave W is transmitted toward the other end. In the present embodiment, the transmitting antenna 70 is disposed on the rooftop 30, and the directional radio wave W is transmitted toward the ground. A radio wave absorbing member 9 is arranged at the other end of the transmission path S, that is, on the ground side, to prevent reflection and scattering of the directional radio wave W. The reception antenna 80 is moved from a desired floor to the transmission path S. Arranged to receive the directional radio wave W.

The transmission path of the wireless communication may be any space that communicates between the upper and lower floors of the structure 3, and is not limited to the transmission path S that is a space along the upper and lower outer walls of the structure 3. The shaft 5 or the duct shaft 6 may be used.

As described above, the space communicating between the upper and lower floors of the structure 3 as a building is defined as the transmission path S for wireless communication.
As shown in the schematic diagram, the transmission antenna 70 is disposed at one end of the transmission path S and emits the directional radio wave W toward the other end. The radio wave W can be received at any floor, and wireless communication is performed with the transmission antenna 80 arranged from the desired floor toward the transmission line S. In addition, the transmission path S
Since the radio wave absorbing member 9 as the radio wave absorbing means is disposed on the other end side of the directional wave, the directional radio wave W arriving at the end is not reflected or scattered, so that interference can be prevented.

Therefore, according to such an information transmission method, information to be transmitted can be transmitted to a desired floor between the upper and lower floors, and a transmission line such as a coaxial cable is laid because of wireless communication. Since the transmitting antenna 70 and the receiving antenna 80 need only be arranged at the upper and lower ends of the building, the installation work can be performed easily and easily. Further, since the work is easy, it is preferable for labor saving, and it is also advantageous in terms of cost. Further, in this embodiment, the trunk of the transmission path is merely a communication space, and wireless communication is performed in this space. Therefore, the possibility of damage to the transmission system due to a local fire is small, and the reliability of the network is reduced. Can be improved.

[0017]

As described above in detail, according to the method for transmitting information in a building according to the present invention, the space communicating between the upper and lower floors of the building is used as a transmission path for wireless communication, and the radio wave transmitted from the transmitting antenna is transmitted. Can be received between the upper and lower floors, and wireless communication can be performed with a receiving antenna arranged on the transmission path. Therefore, the information to be transmitted can be transmitted to the desired floor, and the transmission line is not required because of the wireless communication, and the transmission and reception antennas are simply arranged, so that the installation work can be performed easily and easily. Can be.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of a film-structured dome showing one embodiment of the present invention.

FIG. 2 is a schematic diagram showing a wireless communication system according to the present invention.

[Explanation of symbols]

 3 Structure 5 Elevator Shaft 6 Duct Shaft 9 Radio Wave Absorbing Member 70 Transmitting Antenna 80 Receiving Antenna S Transmission Path W Directional Radio Wave

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04B 7/24-7/26 H04Q 7/00-7/38

Claims (4)

(57) [Claims] When transmitting information between the upper and lower floors of a building, a space communicating between the upper and lower floors of the building is used as a transmission path for wireless communication, and a transmission antenna is arranged at one end of the transmission path and connected to the other end. Directional radio waves are transmitted toward the other side, radio wave absorbing means is arranged at the other end to prevent reflection and scattering of radio waves, and a receiving antenna is arranged on the transmission line between the upper and lower floors to receive radio waves Information transmission method in a building. 2. The method according to claim 1, wherein said transmission path is an elevator shaft. 3. The method for transmitting information in a building according to claim 1, wherein said transmission path is a duct shaft. 4. The method for transmitting information in a building according to claim 1, wherein the transmission path is a space along upper and lower outer walls of the building.