Access Point Installation Method
By determining the access point wall based on glass window area and installing antennas on rooftops and adjacent areas, the method addresses the challenges of wireless communication and radio wave interference in steel frame reinforced concrete or reinforced concrete buildings, enabling efficient indoor wireless communication without indoor wiring.
Patent Information
- Application Number
- JP2022095625
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-06-15
- Filing Date
- 2022-06-14
- Publication Date
- 2025-06-19
- Estimated Expiration
- 2042-06-14
AI Technical Summary
In existing buildings made of steel frame reinforced concrete or reinforced concrete, the metal infrastructure obstructs wireless communication, and changing to high-speed optical fiber lines requires difficult construction in shared and condominium areas, often resulting in radio wave interference due to overlapping WiFi channels.
The method involves determining the wall surface with the largest total glass window area as the access point wall, and installing antennas on the rooftop and adjacent to the building to facilitate wireless communication indoors without the need for indoor wiring. Additionally, door-specific antennas can be installed on balconies or glass surfaces to enhance coverage.
This approach enables wireless communication indoors in steel frame reinforced concrete or reinforced concrete buildings without the need for indoor wiring, reduces radio wave interference by sharing WiFi channels, and simplifies the process of upgrading to high-speed internet by avoiding complex construction in shared areas.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention relates to a method for installing an access point that enables wireless communication indoors in a building of steel frame reinforced concrete or reinforced concrete.
Background Art
[0002] In a building of steel frame reinforced concrete or reinforced concrete, an optical fiber line is wired and drawn to each household using an existing pipe for telephone lines. By the way, Patent Document 1 proposes providing an access point on the ground side in order to construct a network on a high floor of a building.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] When an optical fiber line is wired and drawn to each household, in an existing building, when changing to a high-speed line, it is necessary to perform construction in the shared part and the condominium part of the building. In particular, in an existing building in an apartment house such as a condominium, it is not easy to perform line change work in the condominium part. In addition, in an existing building of steel frame reinforced concrete or reinforced concrete, a metal mesh is embedded in the wall surface, and the steel frame, reinforcing bars, and metal mesh become a major obstacle to wireless communication between the outside and the inside. Therefore, currently, a wired line such as optical communication is drawn and used up to each household in the condominium part. In particular, in an apartment building such as a condominium, when each household uses a WiFi access point freely selected for each condominium unit, due to differences in radio wave channel strength in each household, the WiFi in use may be disconnected or interfered with by the influence of the same radio wave channel or adjacent radio wave channels with high intensity, resulting in a situation where it cannot be used properly. For example, in the 2.4 GHz band, there are only 14 radio wave channels. Even in a condominium with only 14 households, the probability that each household uses a different radio wave channel is extremely low. If there are 15 or more households, the same radio wave channel or adjacent radio wave channels will surely be used, and there is a risk of radio wave interference occurring in one of the households. In Patent Document 1, since it targets high-rise buildings under construction, ground-side access points can be installed on the ground side so as to surround the high-rise building. However, in existing buildings, there is not necessarily installation space around the entire building.
[0005] Therefore, an object of the present invention is to provide an access point installation method capable of performing wireless communication indoors in a building made of steel frame reinforced concrete or reinforced concrete by using the glass window of the building without pulling wiring into the condominium units indoors.
Means for Solving the Problems
[0006] The access point installation method of the present invention according to claim 1 is an access point installation method that enables wireless communication indoors in a building 10 of steel frame reinforced concrete or reinforced concrete, and includes an access point wall determination step of determining, as an access point wall 10s, the wall surface 10s having the largest total area of glass windows 13 among a plurality of wall surfaces 10s, 10n, 10e, 10w constituting the building 10; a first access point position determination step of determining, as a first access point position, a position extending from the access point wall 10s on the rooftop 12 of the building 10; a second access point position determination step of determining, as a second access point position, a position at a predetermined height from the ground adjacent to the building 10 on the side of the access point wall 10s; a first antenna installation step of installing a first antenna 21a serving as a first access point 21 at the first access point position; and a second antenna installation step of installing a second antenna 22a serving as a second access point 22 at the second access point position. In the first antenna installation step, the first antenna 21a is installed facing the upper floor of the access point wall 10s, and in the second antenna installation step, the second antenna 22a is installed facing the lower floor of the access point wall 10s. The present invention according to claim 2 is the access point installation method according to claim 1, and includes a third access point position determination step of determining, as a third access point position, a position at a predetermined height from the ground adjacent to the building 10 on the side of the shared space 11 of the building 10; and a third antenna installation step of installing a third antenna 23a serving as a third access point 23 at the third access point position. In the third antenna installation step, the third antenna 23a is installed facing the shared space 11 and the lower floor of the access point wall 10s. The present invention according to claim 3 is the access point installation method according to claim 2, characterized in that, in the building 10, a signal converter 33 connected to the external communication line 32, the signal converter 33, a repeater 31 connecting the first access point 21, the second access point 22, and the third access point 23, and a remote switch 35 for on / off control of the signal converter 33, the repeater 31, the controller 37, and the surveillance camera 36 using a communication line 34 different from the external communication line 32, and the surveillance camera 36 connected to any one of the first access point 21, the second access point 22, and the third access point 23 are installed. The present invention according to claim 4 is the access point installation method according to claim 3, characterized by having a wiring step of connecting the repeater 31 and the first access point 21 with a first LAN cable 41 and connecting the repeater 31 and the second access point 22 with a second LAN cable 42, wherein the first LAN cable 41 passes through a pipe space installed in the building 10, and the second LAN cable 42 passes through a pipe buried underground. The present invention according to claim 5 is the access point installation method according to any one of claims 1 to 4, characterized by having a step of installing a door-specific antenna 50 on the side of the access point wall surface 10s corresponding to the condominium unit of the building 10, and the door-specific antenna 50 is connected to a door-specific repeater 60 installed indoors. The present invention according to claim 6 is the access point installation method according to claim 5, characterized in that, in the step of installing the door-specific antenna, the door-specific antenna 51 is installed on a balcony 14 formed to extend outward from the glass window 13. The present invention according to claim 7 is the access point installation method according to claim 5, characterized in that, in the step of installing the door-specific antenna, the door-specific antenna 52 is installed on the outdoor glass surface of the glass window 13. The present invention according to claim 8 is characterized in that, in the method for installing an access point according to claim 5, in the step of installing the door-specific antenna, the door-specific antenna 52 is installed on the indoor glass surface of the glass window 13. The present invention according to claim 9 is characterized in that, in the method for installing an access point according to claim 2, the first access point 21, the second access point 22, and the third access point 23 are connected by mesh WiFi.
Effect of the Invention
[0007] According to the method for installing an access point of the present invention, a wall surface with the largest total glass window area among a plurality of wall surfaces constituting a building is determined as the access point wall surface. On the rooftop of the building, a position extending from the access point wall surface and a position on the ground adjacent to the building, at a predetermined height from the ground on the side of the access point wall surface, are determined as access points. By installing the first antenna on the rooftop of the building facing the upper floors and the second antenna installed on the ground adjacent to the building facing the lower floors, communication can be performed indoors in a building made of steel frame reinforced concrete or reinforced concrete without using indoor wiring. In addition, since each household can share and use the WiFi radio wave channel supplied from the antenna installed by the method for installing an access point of the present invention, each household uses the WiFi access point selected independently less frequently, and it is possible to prevent the occurrence of radio wave interference due to differences in radio wave channel strength.
Brief Description of the Drawings
[0008]
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Mode for Carrying Out the Invention
[0009] The access point installation method according to the first embodiment of the present invention includes an access point wall determination step of determining, as an access point wall, the wall surface with the largest total glass window area among a plurality of wall surfaces constituting a building, a first access point position determination step of determining, on the rooftop of the building, a position extended from the access point wall as the first access point position, a second access point position determination step of determining, on the ground adjacent to the building, a position at a predetermined height from the ground on the access point wall side as the second access point position, a first antenna installation step of installing a first antenna serving as the first access point at the first access point position, and a second antenna installation step of installing a second antenna serving as the second access point at the second access point position. In the first antenna installation step, the first antenna is installed facing the upper floor of the access point wall, and in the second antenna installation step, the second antenna is installed facing the lower floor of the access point wall. According to this embodiment, by determining the wall surface with the largest total glass window area among a plurality of wall surfaces constituting the building as the access point wall, and determining, as access points, a position extended from the access point wall on the rooftop of the building and a position at a predetermined height from the ground on the access point wall side on the ground adjacent to the building, and installing the first antenna installed on the rooftop of the building facing the upper floor and the second antenna installed on the ground adjacent to the building facing the lower floor, communication can be performed indoors in a building of steel frame reinforced concrete or reinforced concrete without using indoor wiring. Further, since each household can share the use of the WiFi radio channel supplied from the antenna installed by the access point installation method of the present invention, the use of the WiFi access point independently selected by each household is reduced, and the occurrence of radio wave interference due to differences in radio wave channel intensity can be prevented.
[0010] The second embodiment of the present invention is in the access point installation method according to the first embodiment. A third access point position determination step of determining, as a third access point position, a position at a predetermined height from the ground adjacent to the building and on the shared space side of the building, and a third antenna installation step of installing a third antenna that becomes the third access point at the third access point position. In the third antenna installation step, the third antenna is installed facing the shared space and the lower floor of the access point wall surface. According to this embodiment, by further installing the third antenna, communication indoors in the building can be surely performed.
[0011] The third embodiment of the present invention is in the access point installation method according to the second embodiment. In the building, a signal converter connected to an external communication line, a repeater connecting the signal converter, the first access point, the second access point, and the third access point, a remote remote switch for on-off control of the signal converter, the repeater, the controller, and the monitoring camera using a communication line different from the external communication line, and a monitoring camera connected to any one of the first access point, the second access point, and the third access point are installed. According to this embodiment, the connection status of the monitoring camera can be confirmed remotely, and it can be confirmed whether the signal converter, the first access point, the second access point, the third access point, and the repeater are operating normally according to the connection status of the monitoring camera. That is, if the monitoring camera is not connected, it can be estimated that at least one of the signal converter, the first access point, the second access point, the third access point, and the repeater is not operating normally, and communication can be restored by turning on and off the signal converter, the controller, the monitoring camera, and the repeater with the remote remote switch.
[0012] The fourth embodiment of the present invention is an access point installation method according to the third embodiment, which has a wiring step of connecting a repeater and a first access point with a first LAN cable and connecting the repeater and a second access point with a second LAN cable. The first LAN cable passes through the pipe space installed in the building, and the second LAN cable passes through the pipe buried underground. According to this embodiment, by wiring the first LAN cable connecting the repeater and the first access point using the pipe space and burying the second LAN cable connecting the repeater and the second access point underground, wiring can be performed without entering the condominium part of the building, so the burden of wiring work is small.
[0013] The fifth embodiment of the present invention is an access point installation method according to the first to fourth embodiments, which has a room-by-room antenna installation step of installing a room-by-room antenna on the wall surface side of the access point corresponding to the condominium part of the building. The room-by-room antenna is connected to a room-by-room repeater installed indoors. According to this embodiment, for example, when the number of floors of the building increases and communication indoors is not sufficient with only the first access point and the second access point, communication indoors can be ensured by installing a room-by-room antenna on the wall surface side of the access point.
[0014] The sixth embodiment of the present invention is an access point installation method according to the fifth embodiment, in which in the room-by-room antenna installation step, the room-by-room antenna is installed on a balcony formed to extend outward from the glass window. According to this embodiment, the installation of the room-by-room antenna can be easily performed.
[0015] The seventh embodiment of the present invention is an access point installation method according to the fifth embodiment, in which in the room-by-room antenna installation step, the room-by-room antenna is installed on the outdoor glass surface of the glass window. According to this embodiment, the installation of the room-by-room antenna can be easily performed.
[0016] The eighth embodiment of the present invention is the access point installation method according to the fifth embodiment. In the door-specific antenna installation step, the door-specific antenna is installed on the indoor glass surface of the glass window. According to this embodiment, the installation of the door-specific antenna can be easily performed.
[0017] The ninth embodiment of the present invention is the access point installation method according to the second embodiment, in which the first access point, the second access point, and the third access point are mesh WiFi-connected. According to this embodiment, even if the communication of any one of the first access point, the second access point, and the third access point is insufficient, communication indoors can be enabled.
Example
[0018] Hereinafter, an access point installation method according to an embodiment of the present invention will be described. FIG. 1 is a conceptual diagram showing the access point installation method according to this embodiment. FIG. 1(a) is a front conceptual diagram of the building, FIG. 1(b) is a top conceptual diagram of the same building, and FIG. 1(c) is a side conceptual diagram of the same building. The access point installation method according to this embodiment targets a building 10 in which a metal material such as a steel frame reinforced concrete, a reinforced concrete, or a metal mesh is used, and enables wireless communication indoors in the building 10. The building 10 shown in FIG. 1 is a four-story condominium composed of four wall surfaces: a south wall surface 10s, a north wall surface 10n, an east wall surface 10e, and a west wall surface 10w. In the application of the present invention, the building 10 is preferably two stories or more and ten stories or less, and more preferably four stories or more and six stories or less. The building 10 has a shared space 11 composed of an entrance and a manager's room. The shared space 11 is equipped with a repeater 31. On the rooftop 12 of the building 10, a first antenna 21a serving as a first access point 21 is installed, and on the ground adjacent to the building 10, a second antenna 22a serving as a second access point 22 is installed. As shown in the figure, it is preferable to further install a third antenna 23a serving as a third access point 23 at a position at a predetermined height from the ground on the side of the shared space 11 of the building 10, which is the ground adjacent to the building 10.
[0019] The first LAN cable 41 connects the repeater 31 and the first access point 21, the second LAN cable 42 connects the repeater 31 and the second access point 22, and the third LAN cable 43 connects the repeater 31 and the third access point 23. The first LAN cable 41 passes through the pipe space or the wall surface installed in the building 10, and the second LAN cable 42 and the third LAN cable 43 pass through the pipe buried in the ground or the ground. Here, the pipe space is a space where pipes such as main water supply pipes, drainage pipes, and gas pipes are arranged, and is a space provided vertically from the first floor to the top floor. The branched pipe spaces branched to each room are not included in the pipe space in this embodiment.
[0020] Figure 2 is a flowchart showing the access point installation method according to this embodiment. In S1, the south wall surface 10s with the largest total area of the glass windows 13 (see FIG. 1) is determined as the access point wall surface 10s from among the plurality of wall surfaces 10s, 10n, 10e, 10w constituting the building 10 (access point wall surface determination step). Here, the south wall surface 10s with the largest total area of the glass windows 13 is usually the wall surface where the balcony 14 (see FIG. 1) is installed, and it faces southward in many cases, but the orientation varies depending on the location conditions of the building 10.
[0021] In S2, at the rooftop 12 of the building 10, the position extended from the access point wall surface 10s is determined as the first access point position (first access point position determination step). In S3, a position at a predetermined height from the ground adjacent to the building 10 and on the side of the access point wall surface 10s is determined as the second access point position (second access point position determination step). In S4, a position at a predetermined height from the ground adjacent to the building 10 and on the side of the shared space 11 of the building 10 is determined as the third access point position (third access point position determination step).
[0022] In S5, a first antenna 21a that becomes the first access point 21 is installed at the first access point position (first antenna installation step). In the first antenna installation step in S5, the first antenna 21a is installed facing the upper floors of the access point wall surface 10s. In the case of a four-story building, the third and fourth floors are the upper floors, and in the case of a six-story building, the fourth to sixth floors are the upper floors. In S6, a second antenna 22a that becomes the second access point 22 is installed at the second access point position (second antenna installation step). In the second antenna installation step in S6, the second antenna 22a is installed facing the lower floors of the access point wall surface 10s. In the case of a four-story building, the first and second floors are the lower floors, and in the case of a six-story building, the first to third floors are the lower floors. In S7, a third antenna 23a that becomes the third access point 23 is installed at the third access point position (third antenna installation step). In the third antenna installation step in S7, the third antenna 23a is installed facing the lower floors of the shared space 11 and the access point wall surface 10s.
[0023] In S8, the repeater 31 and the first access point 21 are connected by a first LAN cable 41, the repeater 31 and the second access point 22 are connected by a second LAN cable 42, and the repeater 31 and the third access point 23 are connected by a third LAN cable 43 (LAN cable wiring step). The first LAN cable 41 passes through the pipe space or wall surface installed in the building 10, and the second LAN cable 42 and the third LAN cable 43 pass through the pipes buried underground or the ground. In S9, on the access point wall surface 10s side corresponding to the condominium unit of the building 10, a door-specific antenna 50 (see FIGS. 3, 4, and 5) and a door-specific repeater 60 installed indoors are installed (door-specific antenna installation step). In S10, as shown in FIG. 6, a signal converter 33, a repeater 31, a controller 37, and a surveillance camera 36 are connected to a remote remote switch 35 that performs on / off control using a communication line 34 different from the external communication line 32, and any one of a first access point 21, a second access point 22, and a third access point 23, and a surveillance camera 36, and a controller 37 for checking the operation of the repeater 31 are installed in the shared space 11 of the building 10 (installation step of control and monitoring devices).
[0024] FIG. 3 is a conceptual diagram showing the installation state of the door-specific antenna on the balcony side according to this embodiment. For example, when the number of floors of the building 10 increases and communication indoors is not sufficient with only the first access point 21 and the second access point 22, by installing the door-specific antenna 50 on the access point wall surface 10s side, communication indoors can be ensured. FIG. 3(a) shows a door-specific antenna 51 installed on a balcony 14 formed by extending outward from a glass window 13. Since the balcony 14 is formed by extending outward from the glass window 13, communication can be ensured. Also, by installing it on the balcony 14, the door-specific antenna 51 can be easily installed. FIG. 3(b) shows a door-specific antenna 52 installed on the outdoor glass surface of the glass window 13. A seal antenna is suitable for the door-specific antenna 52 installed on the glass window 13. By installing the door-specific antenna 52 on the outdoor glass surface of the glass window 13, the installation of the door-specific antenna 52 can be easily performed. Note that the door-specific antenna 52 may be installed on the window frame of the glass window 13 or the wall surface on the balcony 14 side. When installed on the wall surface, it is preferably installed around a ventilation opening or an opening for the duct of an air conditioner.
[0025] In this way, when the door - specific antenna 51 is installed on the balcony 14 or the door - specific antenna 52 is installed on the outdoor glass surface of the glass window 13, the cable 70 can be drawn into the room using the ventilation opening or the duct opening of the air - conditioning device. Further, as shown in Fig. 3(b), when the door - specific antenna 52 is installed on the outdoor glass surface of the glass window 13, a connector 71 is provided on the cable 70 arranged outdoors. The connector 71 is preferably detachable by opening and closing the glass window 13.
[0026] Fig. 4 is a conceptual diagram showing the installation state on the indoor side of the door - specific antenna according to this embodiment. The door - specific antenna 50 installed on the balcony 14 or the glass window 13 is connected to the door - specific repeater 60 installed indoors. The door - specific antenna 50 and the door - specific repeater 60 are connected by a coaxial cable or the like.
[0027] Fig. 5 is a conceptual diagram showing another installation state on the indoor side of the door - specific antenna according to this embodiment. In Fig. 5, the door - specific antenna 52 is installed on the indoor glass surface of the glass window 13. A seal antenna is suitable for the door - specific antenna 52 installed on the glass window 13. By installing the door - specific antenna 52 on the indoor glass surface of the glass window 13, the installation of the door - specific antenna 52 can be easily performed. When the door - specific antenna 52 is installed on the indoor glass surface of the glass window 13, a connector 71 is provided on the cable 70. The connector 71 is preferably detachable by opening and closing the glass window 13. Note that the door - specific antenna 52 may be installed on the window frame of the glass window 13 or the indoor wall surface. When installed on the wall surface, it is preferably installed near the glass window 13.
[0028] Fig. 6 is a conceptual diagram showing the configuration of the control and monitoring device according to this embodiment. In the shared space 11 of the building 10, a signal converter 33 connected to the external communication line 32, a repeater 31, a controller 37, and a monitoring camera 36 are installed. The repeater 31 connects the signal converter 33 to the first access point 21, connects the signal converter 33 to the second access point 22, and connects the signal converter 33 to the third access point 23. The surveillance camera 36 is connected to any one of the first access point 21, the second access point 22, and the third access point 23. The controller 37 checks the operating status such as communication speed, traffic volume, and number of connected devices in the repeater 31, and the on / off operations of each access point 21, 22, 23, and performs the on / off operations of the access points 21, 22, 23. The remote switch 35 controls the signal converter 33, the repeater 31, the surveillance camera 36, and the controller 37 to turn on and off using a communication line 34 different from the external communication line 32. By turning on and off the repeater 31 by the remote switch 35, each access point 21, 22, 23 connected to the repeater 31 is turned on and off. The remote switch 35 is connected to the communication line 34 by using a WiFi router 38.
[0029] With such a configuration, the remote monitoring device 39 can grasp the video of the monitoring camera 36 via the external communication line 32. If the video of the monitoring camera 36 is in a stopped state, it can be determined that there is a problem with the communication status of the first access point 21, the second access point 22, and the third access point 23. Also, the remote monitoring device 39 can grasp the operation or stop of each access point 21, 22, 23 by the controller 37 via the external communication line 32. Therefore, the connection status of the monitoring camera 36 and the operation or stop of each access point 21, 22, 23 can be confirmed by the remote monitoring device 39 at a remote location. By giving an instruction from the remote monitoring device 39, the remote remote switch 35 can turn on and off the signal converter 33, the repeater 31, and the controller 37 to restore communication. Note that since the first access point 21, the second access point 22, and the third access point 23 can be turned on and off by turning the repeater 31 on and off, the problems of the first access point 21, the second access point 22, and the third access point 23 can also be restored. Also, the monitoring camera 36 can be turned on and off by the remote remote switch 35.
[0030] In this way, the south wall surface 10S, which has the largest total area of the glass window 13 among the plurality of wall surfaces 10s, 10n, 10e, 10w constituting the building 10, is determined as the access point wall surface 10s. On the roof 12 of the building 10, the position extended from the access point wall surface 10s and on the ground adjacent to the building 10, the position at a predetermined height from the ground on the access point wall surface 10s side are determined as access points. By installing the first antenna 21a installed on the roof 12 of the building 10 facing the upper floors and the second antenna 22a installed on the ground adjacent to the building 10 facing the lower floors, communication can be performed indoors in a building 10 of steel frame reinforced concrete or reinforced concrete without using indoor wiring. In addition, since each household can share the WiFi radio wave channels supplied from the antennas installed by the access point installation method of the present invention, the use of the WiFi access points independently selected by each household is reduced, and the occurrence of radio wave interference due to differences in radio wave channel strength can be prevented. Also, according to the present embodiment, by further installing the third antenna 23a, communication indoors in the building 10 can be ensured. Also, according to the present embodiment, the first LAN cable 41 is wired using the pipe space or wall surface of the building 10, and the second LAN cable 42 and the third LAN cable 43 are buried underground or passed through the ground, so that wiring can be performed without entering the condominium portion of the building 10, and the burden of wiring work is small. In the above embodiment, the first access point 21, the second access point 22, and the third access point 23 are preferably in mesh WiFi connection. By using mesh WiFi connection, even if the communication of any one of the first access point 21, the second access point 22, and the third access point 23 is insufficient, communication indoors can be enabled.
[0031] FIG. 7 is a conceptual diagram showing an access point installation method according to another embodiment of the present invention. FIG. 7(a) is a front conceptual diagram of a building, and FIG. 7(b) is a top conceptual diagram of the same building. Note that the same reference numerals are given to the same functions as in the above embodiment, and the description thereof is omitted. The south wall surface 10s with the most glass windows 13 among the plurality of wall surfaces 10s, 10n, 10e, 10w constituting the building 10 is determined as the access point wall surface 10s. Then, on the rooftop 12 of the building 10, on the side of the access point wall surface 10s, a plurality of antennas 21w, 21x, 21y, 21z are installed, and the antennas 21w, 21x, 21y, 21z are installed facing the ground. Each of the antennas 21w, 21x, 21y, 21z is preferably arranged between adjacent balconies 14 and between adjacent condominium portions. The antennas 21w, 21x, 21y, 21z may be arranged at positions extending from the access point wall surface 10s.
[0032] According to this embodiment, a communication environment that is less affected by the floors of the building 10 can be realized. In this embodiment, as shown in FIGS. 3, 4, and 5, it is preferable to install the room-specific antenna 50 on the side of the access point wall surface 10s corresponding to the condominium unit of the building 10. The room-specific antenna 50 is connected to the room-specific repeater 60 installed indoors. Although not shown, each of the antennas 21w, 21x, 21y, and 21z is connected to the access point and has the device configuration shown in FIG. 6. In this embodiment, the antennas 21w, 21x, 21y, and 21z are provided only on the access point wall surface 10s. However, in addition to the access point wall surface 10s, by installing the antennas 21w, 21x, 21y, and 21z facing the ground on the wall surfaces 10w, 10e, and 10n having the glass windows 13 other than the access point wall surface 10s, wireless communication can be performed for the condominium units that do not have the glass window 13 on the access point wall surface 10s. Also, depending on the condominium unit, the radio wave may be weak, and when it is necessary to perform wireless communication even in a living room far from the glass window, a room-specific repeater 60 may be further installed indoors.
Industrial Applicability
[0033] According to the access point installation method of the present invention, by using the glass window of the building, wireless communication can be performed indoors in a steel frame reinforced concrete or reinforced concrete building without running wiring into the condominium units indoors.
Explanation of Signs
[0034] 10 Building 10s South wall surface (access point wall surface) 10n North wall surface 10e East wall surface 10w West wall surface 11 Shared space 12 Roof 13 Glass window 14 Balcony 21 First access point 21a First antenna 21w, 21x, 21y, 21z Antennas 22 Second access point 22a Second antenna 23 Third access point 23a Third antenna 31 Repeater 32 External communication line 33 Signal converter 34 Communication line 35 Remote switch 36 Surveillance camera 37 Controller 38 WiFi router 39 Remote monitoring device 41 First LAN cable 42 Second LAN cable 43 Third LAN cable 50, 51, 52 Apartment antennas 60 Apartment repeater 70 Cable 71 Connector
Claims
1. An access point installation method for enabling wireless communication indoors in a building of steel frame reinforced concrete or reinforced concrete, comprising: An access point wall determination step of determining, as an access point wall, the wall surface among a plurality of wall surfaces constituting the building that has the largest total area of glass windows; A first access point position determination step of determining, on the rooftop of the building, a position extended from the access point wall surface as a first access point position; A second access point position determination step of determining, on the ground adjacent to the building, a position at a predetermined height from the ground on the access point wall surface side as a second access point position; A first antenna installation step of installing a first antenna serving as a first access point at the first access point position; A second antenna installation step of installing a second antenna serving as a second access point at the second access point position and having: In the first antenna installation step, the first antenna is installed facing the upper floors of the access point wall surface; In the second antenna installation step, the second antenna is installed facing the lower floors of the access point wall surface. An access point installation method characterized by the above.
2. A third access point position determination step of determining, on the ground adjacent to the building, a position at a predetermined height from the ground on the shared space side of the building as a third access point position; A third antenna installation step of installing a third antenna serving as a third access point at the third access point position and having: In the third antenna installation step, the third antenna is installed facing the shared space and the lower floors of the access point wall surface. The access point installation method according to Claim 1, characterized by the above.
3. In the building, a signal converter connected to an external communication line, a repeater connecting the signal converter, the first access point, the second access point, and the third access point, a remote switch for on / off control of the signal converter, the repeater, the controller, and the monitoring camera using a communication line different from the external communication line, and the monitoring camera connected to any one of the first access point, the second access point, and the third access point are installed. The method for installing an access point according to claim 2, characterized in that.
4. It has a wiring process of connecting the repeater and the first access point with a first LAN cable and connecting the repeater and the second access point with a second LAN cable, The first LAN cable passes through the pipe space installed in the building, and the second LAN cable passes through the pipe buried underground. The method for installing an access point according to claim 3, characterized in that.
5. It has a process of installing a door-specific antenna on the wall surface side of the access point corresponding to the condominium unit of the building, The door-specific antenna is connected to a door-specific repeater installed indoors. The method for installing an access point according to any one of claims 1 to 4, characterized in that.
6. In the process of installing the door-specific antenna, the door-specific antenna is installed on a balcony formed by extending outward from the glass window. The method for installing an access point according to claim 5, characterized in that.
7. In the process of installing the door-specific antenna, the door-specific antenna is installed on the outdoor glass surface of the glass window. The access point installation method according to claim 5, characterized in that...
8. In the door-specific antenna installation step, the door-specific antenna is installed on the indoor glass surface of the glass window. The access point installation method according to claim 5, characterized in that...
9. The first access point, the second access point, and the third access point are connected by mesh WiFi. The access point installation method according to claim 2, characterized in that...
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