JPH0699971B2 - Electromagnetic shield type entrance of intelligent building - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electromagnetic shield type doorway of an intelligent building suitable for adopting an information network system using radio waves, with the entire building having an electromagnetic shield structure. Is.

[Prior Art] Generally, in intelligent buildings, information communication facilities such as complex electronic exchanges and computers are shared to perform information communication with the inside and outside of the building, but the value of information increases, and the needs for information diversify. In addition to individualization, providing swift and accurate information is one of the major issues in large-scale buildings. In the intelligent building, optical fiber
An information network based on a data highway method using a cable or a coaxial cable has been studied and proposed.

[Problems to be solved by the invention]

However, in the data highway method that uses optical fiber cables and coaxial cables, it is necessary to stretch the optical fiber cables and coaxial cables all over the interior of the intelligent building, which requires extra work time and labor for cable laying. This will be the case.

Also, if radio waves are used for information communication inside the building, it is practically possible to support up to 50 GHz and there is no need to lay cables, but in this case, on the other hand, noise radio waves are emitted to the outside, so 3T
Up to (tera) Hz will be regulated by the Radio Law.
On the other hand, there arises a problem that the system malfunctions due to external radio waves, internal TV intermediate frequency, radio microphone radio waves, and the like.

Therefore, the applicant of the present application separately constructed an intelligent building that uses electromagnetic shielding members to construct the building and openings such as windows and entrances and exits, and made the entire building an electromagnetic shielding structure to enable communication inside the building by radio waves. is suggesting. In this case, the windows and doors that will be the openings of the building are also shielded by using windowpanes and doors with mesh.

By the way, if the door itself at the entrance / exit is made to have an electromagnetic shield structure, it will be opened each time there is an entrance / exit, so it is not possible to ensure perfect electromagnetic shielding performance, and the radio wave will not be emitted every time there is an entrance / exit from the door. Leakage will occur, which will interfere with communication inside the building using radio waves. Therefore, in an intelligent building in which the entire building has an electromagnetic shield structure, it is essential to always ensure the electromagnetic shield performance even when the building is in and out.

The present invention solves the above problems, and prevents electromagnetic waves from leaking even when the door of an entrance / exit is opened, and can always ensure a sufficient electromagnetic shield performance. It is intended to provide.

[Means for solving problems]

Therefore, the present invention is an electromagnetic shield type entrance / exit of an intelligent building in which openings such as a frame and windows and entrances / exits are formed using an electromagnetic shield member, and the entire building has an electromagnetic shield structure. A door and a passage through the first door are arranged, a second door is arranged at an end of the passage in a different direction with respect to the first door, and the passage through the first door and the second door is arranged. The present invention is characterized in that a passage is formed so that the flow line of movement is bent, and further, an electromagnetic wave absorber is used for the wall, floor and ceiling of the passage.

[Action]

In the electromagnetic shield type entrance / exit of the intelligent building of the present invention, the first door and the passage that goes in and out of the first door are arranged on the wall surface, and the second door is provided at the end of the passage in a different direction with respect to the first door. And the passage is formed so that the flow line passing through the first door and the second door can bend, so that the electric wave entering through one of the door openings can be blocked by bending the passage. Thus, it is possible to prevent radio waves from directly entering the inside or leaking outside from the one door opening through the other door opening. Further, by using a radio wave absorber for the wall, floor, and ceiling, it is possible to attenuate the radio wave leaking out from the door opening and the radio wave entering into the inside from the wall, floor, and ceiling of the passage. Therefore, the electromagnetic shield performance can be sufficiently enhanced in the passage extending from one door to the other door.

〔Example〕

 Hereinafter, embodiments will be described with reference to the drawings.

FIG. 1 is a view for explaining an embodiment of an electromagnetic shield type entrance / exit of an intelligent building according to the present invention. In the figure, 1 is a passage, 2 and 3 are doors, 4 and 5 are walls, and 6 and 7 are radio wave absorbers.

In FIG. 1, the passage 1 is arranged parallel to the wall 4 of the frame, the door 3 is arranged on the side of the wall 4 of the frame in the passage 1 as an entrance / exit to the building, and the door 2 is relative to the door 3. It is arranged at the end of the passage 1, that is, at the outer end of the building and in a different orientation. Therefore, the passage 1 is a path of movement from one door through the other door so that the door 1 is bent at a right angle to enter the building from the door 3 and is bent at a right angle from the door 3 to exit the building from the door 2. Form a curved passage. Although not shown, the door may be similarly arranged at a position symmetrical to the door 2 (right end of the illustrated passage 1). As described above, the electromagnetic shield type entrance / exit of the intelligent building according to the present invention includes the outer door 2 and the inner door 3.
A passage 1 having a curved flow line for entering and exiting is arranged between and, and electromagnetic wave absorbers 6 and 7 are used for the walls 4 and 5 of the passage 1 and the floor and ceiling. Therefore, when the outside door 2 is opened, the radio wave entering from outside the building collides with the wall 5 of the passage 1, the floor, and the ceiling, and is attenuated by the radio wave absorber 7. Similarly, the electric wave leaking from the inside of the building when the inner door 3 is opened collides with the wall 5 of the passage 1, the floor and the ceiling, and is attenuated by the electric wave absorber 7.

As shown in FIG. 1, when the passage 1 is arranged in parallel with the surface of the wall 4 of the skeleton, the protrusion as a building is only the width of the passage 1,
Further, it becomes easy to secure the passage 1 having an arbitrary length. If one can secure a sufficient length of the passage 1 for closing one door from the other door to the other door when entering and exiting, the two doors will not be opened at the same time. Is made of concrete with mesh or ferrite, and the door is made with an electromagnetic shield structure made of mesh, glass with conductive film attached, etc. to secure electromagnetic shielding performance without using an electromagnetic wave absorber. be able to.

The present invention can be modified in various ways and is not limited to the above-mentioned embodiments. For example, the door may be a revolving door or a sliding door, and the combination thereof is arbitrary. Further, the door 2 shown in FIG. 1 may be arranged on the wall 5 side, or the passage portion from the door 2 to the door 3 may be formed in an L shape.

[Effects of the Invention] As is clear from the above description, according to the present invention, both leakage radio waves from inside the building and radio waves entering from outside the building are blocked in the passage between the two doors. Performance can be improved. Moreover, by arranging the passages in parallel with each other outside the wall of the body and bending the door at the right side of the passage through the door on the wall side of the body to enter and exit, the protruding portion of the doorway can be minimized. Therefore, the space can be effectively used without waste.

[Brief description of drawings]

FIG. 1 is a view for explaining an embodiment of an electromagnetic shield type entrance / exit of an intelligent building according to the present invention. 1 ... passage, 2 and 3 ... door, 4 and 5 ... wall, 6 and 7 ... electromagnetic wave absorber.

Claims (3)

[Claims] 1. An electromagnetic shield type entrance / exit for an intelligent building in which an electromagnetic shield member is used to form an opening such as a skeleton and windows and entrances / exits, and the entire building has an electromagnetic shield structure. And a passage that goes in and out of the first door, and a second door is placed at the end of the passage in a different direction with respect to the first door, and goes in and out of the first door and the second door. An electromagnetic shield type entrance / exit of an intelligent building characterized by forming a passage so that the flow line bends. 2. The electromagnetic shield type entrance / exit of an intelligent building according to claim 1, wherein a passage is arranged in contact with the outside of the wall of the skeleton and parallel to the wall surface. 3. An electromagnetic shield type entrance / exit of an intelligent building in which an electromagnetic shield member is used to form an opening such as a skeleton and windows and an entrance / exit, and the entire building has an electromagnetic shield structure, and a first door is provided on a wall surface. And a passage that goes in and out of the first door, and a second door is placed at the end of the passage in a different direction with respect to the first door, and goes in and out of the first door and the second door. An electromagnetic shield type entrance / exit of an intelligent building characterized by forming a passage so that the flow line bends, and using electromagnetic wave absorbers on the walls, floor, and ceiling of the passage.