JP7203335B2 - Communication system and method of controlling communication system - Google Patents

Description

The present invention relates to a communication system and a control method for a communication system.

2. Description of the Related Art Conventionally, a wireless access device is known that is attached to a ceiling or the like that constitutes a part of a building. As an example of this type of wireless access device, Patent Literature 1 discloses a fire sensor that wirelessly communicates with a PDA terminal or the like using an antenna provided outside the sensor body. Also, this fire sensor is in wired communication with a communication server via a LAN cable and a hub.

JP 2009-147774 A

However, in the wireless access device disclosed in Patent Document 1, since the antenna protrudes from the main body of the sensor toward the floor, for example, if an external object touches the antenna, the communication section such as the antenna is deformed, causing a problem with the communication section. may occur.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a communication system and the like that can prevent troubles from occurring in a communication unit.

A communication system according to an aspect of the present invention is a communication system comprising a radio access apparatus, a communication device different from the radio access apparatus, and a first system other than the communication device, wherein the radio access apparatus comprises: A first communication unit attached to a structure that forms part of a building or a structure that is supported by the building and wirelessly communicates with the communication device in the building ; and a second communication unit that communicates with the first system. a housing for housing the first communication unit and the second communication unit; and a mounting unit for mounting the housing to the structure, wherein the first system is connected to the radio access device via the radio access device. The position of the communication device is obtained based on the radio wave intensity obtained by the method, and the brightness of lighting fixtures in the building included in the first system is controlled based on the position of the communication device.

A control method for a communication system according to an aspect of the present invention includes a radio access device attached to a structure forming part of a building or a structure supported by the building, and communicating with the radio access device. A method of controlling a communication system comprising: a communication device different from a radio access device; and a first system other than the communication device that communicates with the radio access device, wherein the communication device in the building is connected to the radio access device. a first step of obtaining the radio field strength of a signal transmitted to a second step of obtaining a position of the communication device based on the radio field strength; and a second step of obtaining the position of the communication device based on the position of the communication device obtained in the second step. and a third step of controlling the brightness of lighting fixtures in said building comprised by said first system .

Further, a radio access device included in a communication system according to an aspect of the present invention is a radio access device attached to a structure forming part of a building or a structure supported by the building, a first communication unit that wirelessly communicates with a communication device different from the access device; a second communication unit that communicates with a first system other than the communication device; and a housing that houses the first communication unit and the second communication unit. and a mounting portion for mounting the housing to the structure, the structure having an opening, the housing comprising a cylindrical housing body and one end side of the housing body. a bottom lid portion having an outer circumference longer than that of the housing body, wherein at least a portion of the housing body is positioned inside the opening; and at least a portion of the bottom lid portion. attached to the structure in contact with the bottom surface of the structure; and a support portion provided on the other end side of the housing body for supporting at least a portion of the communication cable, the support portion inserting the communication cable into the It has an insertion hole for support.
Further, a radio access device included in a communication system according to an aspect of the present invention is a radio access device attached to a structure forming part of a building or a structure supported by the building, a first communication unit that wirelessly communicates with a communication device different from the access device; a second communication unit that communicates with a first system other than the communication device; and a housing that houses the first communication unit and the second communication unit. and a mounting portion for mounting the housing to the structure, the structure having an opening, the housing comprising a cylindrical housing body and one end side of the housing body. a bottom lid portion having an outer circumference longer than that of the housing body, wherein at least a portion of the housing body is positioned inside the opening; and at least a portion of the bottom lid portion. a display unit attached to the structure in contact with the bottom surface of the structure and further provided on the bottom cover for displaying information about the state of the wireless access device; the bottom cover and the display a cover that covers the part, the cover being made of a resin material that allows radio waves to pass through.

According to the communication system and the like according to the present invention, it is possible to suppress the occurrence of troubles in the communication unit.

1 is a schematic diagram showing a communication system and a radio access device according to an embodiment; FIG. 1 is a block configuration diagram showing a communication system and a radio access device according to an embodiment; FIG. 1 is a perspective view showing a radio access device according to an embodiment; FIG. FIG. 4 is a perspective view showing a state in which a cover is separated from the radio access device shown in FIG. 3; 6A and 6B are six views showing a radio access device according to an embodiment; FIG. 1 is a top view of a radio access device according to an embodiment; FIG. 1 is a side view of a radio access device according to an embodiment; FIG. 6 is a cross-sectional view of the radio access device according to the embodiment when viewed from the same direction as (a) of FIG. 5; FIG. FIG. 4 is a diagram showing a supporting section that supports a communication cable connected to the radio access device according to the embodiment; 1 is a perspective view of a state in which a wireless access device according to an embodiment is attached to a building structure, viewed diagonally from below; FIG. FIG. 11 is a diagram showing a state in which a cover is separated from the radio access device shown in FIG. 10; FIG. 10 is a schematic diagram showing a state in which the radio access device according to Modification 1 of the embodiment is attached to a structure supported by a building; FIG. 10 is a perspective view schematically showing a radio access device and a structure according to modification 1 of the embodiment; FIG. 10 is a cross-sectional view schematically showing a radio access device and a structure according to Modification 1 of the embodiment;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that each of the embodiments described below is a preferred specific example of the present invention. The shapes, components, arrangement positions of components, connection forms, and the like shown in the following embodiments are examples and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest level concept of the present invention will be described as arbitrary constituent elements constituting more preferred embodiments. Each figure is a schematic diagram and is not necessarily strictly illustrated.

(Embodiment)
[1. Configuration of communication system]
First, the configuration of a communication system 1 according to an embodiment will be described with reference to FIG. FIG. 1 is a schematic diagram showing a communication system 1 and radio access devices 10a, 10b, and 10c according to an embodiment.

The communication system 1 is used, for example, as an LPS (Local Positioning System) for detecting the positions of people in a building. As shown in FIG. 1 , the communication system 1 includes multiple radio access apparatuses 10 a , 10 b , 10 c , a first system 40 , and multiple communication devices 30 .

Each wireless access device 10a to 10c is installed on a structure 91 such as a ceiling forming part of a building, for example. The radio access devices 10a to 10c are arranged in a matrix on the lower surface 91a of the structure 91 at regular intervals (for example, at intervals of 4 m). Although three radio access devices 10a to 10c are shown in FIG. 1, the number of radio access devices installed in the structure 91 may be one, two, four or more. good too.

The communication device 30 is a device different from the radio access devices 10a-10c. Specifically, the communication device 30 is a portable authentication device for authenticating a person, and is possessed by each of a plurality of persons.

The first system 40 is a system other than the communication device 30, and includes, for example, a management device 41 and a plurality of electrical devices 42 installed in a room. The first system 40 may be a single device or may include a collection of multiple devices (a group of multiple devices having different or the same functionality).

The communication system 1 of this embodiment detects the positions of people in a building and manages and controls a plurality of electrical devices 42 . For example, if the electrical device 42 is a lighting fixture having an LED (Light Emitting Diode), the communication system 1 detects the position of a person and controls the light characteristics of the lighting fixture. Note that the electric device 42 is not limited to a lighting fixture and may be an air conditioner. The number of electric devices 42 is not limited to two, and may be three or more.

[2. Radio Access Device, Communication Device, Configuration of First System]
Next, respective configurations of the radio access devices 10a to 10c, the communication device 30 and the first system 40 will be described with reference to FIG. FIG. 2 is a block configuration diagram showing the communication system 1 and radio access devices 10a to 10c. In the following, among the radio access devices 10a to 10c, the radio access device 10a will be described as a representative example.

The wireless access device 10a of this embodiment is a ceiling-mounted gateway. The wireless access device 10a is used as a wireless access point that wirelessly communicates with the communication device 30, as described above.

The radio access device 10a includes a control unit 15, a first communication unit 11, a second communication unit 12, and a display unit 13, as shown in FIG. Each of the first communication unit 11 , the second communication unit 12 and the display unit 13 is connected to the control unit 15 . The control unit 15, the first communication unit 11 and the second communication unit 12 are provided inside the housing of the radio access device 10a. The structure of the radio access device 10a including the housing will be described later.

The first communication unit 11 includes an antenna and a wireless module that perform wireless communication r1 with the communication device 30 . The first communication unit 11 receives a beacon signal transmission instruction from the control unit 15 and transmits the beacon signal to the communication device 30 . Also, the first communication unit 11 receives a signal transmitted from the communication device 30 in response to the beacon signal.

For wireless communication r1 between the first communication unit 11 and the communication device 30, Bluetooth (registered trademark), specified low-power radio using a frequency of 920 MHz band, Zigbee (registered trademark), or WiFi (registered trademark) A communication method is used. As a beacon signal to be transmitted to the communication device 30, a Bluetooth (registered trademark) beacon using a frequency of 2.4 GHz band or 5 GHz band is used.

The first communication unit 11 transmits, as a beacon signal, a signal instructing to return the identification information of the person who owns the communication device 30 or the identification information of the communication device 30 . The first communication unit 11 also receives a signal including identification information of the person who owns the communication device 30 or identification information of the communication device 30 as a signal transmitted from the communication device 30 . The identification information received by the first communication unit 11 is output to the control unit 15 or the first system 40 .

The control unit 15 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like. The control unit 15 converts the wireless signal acquired via the first communication unit 11 into a wired signal, and transmits the wired signal to the first system 40 via the second communication unit 12 .

The control unit 15 also has a radio wave intensity acquisition unit 16 that acquires the radio wave intensity of the signal transmitted from the communication device 30 . Note that the radio wave intensity acquisition unit 16 may be provided in the first communication unit 11 or the first system 40 instead of the control unit 15 .

The second communication unit 12 is a communication module that performs wired communication with the first system 40 . The second communication unit 12 communicates with the first system 40 using a communication method different from that of the first communication unit 11 and the communication device 30 .

The second communication section 12 transmits management input information to the first system 40 based on information included in the signal received by the first communication section 11 . The management input information is information necessary for the first system 40 to manage and control the electrical equipment 42 and the like. The management input information includes identification information acquired via the first communication unit 11, information on radio wave intensity, and the like.

The display unit 13 is an LED lamp, for example, and displays information about the status of the wireless access device 10a. The information about the state of the radio access device 10a is, for example, whether the radio access device 10a is powered on, whether the second communication unit 12 and the first system 40 are in communication, whether the communication with the first communication unit 11 This is information indicating whether or not the device 30 is in a communication state. Such information can be notified to the outside depending on whether or not the display unit 13 is lit. The wireless access device 10a may further include a sound output unit such as a buzzer or a speaker, and use this sound output unit to report the above information. For example, when a large number of wireless access devices are attached to the building structure 91, each wireless access device may be configured to emit different sounds. This allows the user to recognize which radio access device is emitting sound.

Next, the configuration of the communication device 30 will be described. The communication device 30 is a portable authentication device that is hung around the neck with a neck strap or attached to clothing with a clip. The communication device 30 may be an authentication card or a mobile terminal such as a smart phone or a tablet terminal. The communication device 30 may be attached to or built into equipment, equipment, or the like.

As shown in FIG. 2, the communication device 30 includes a communication section 31, a control section 35, and a battery . The communication unit 31 , the control unit 35 and the battery 38 are provided inside the housing of the communication device 30 .

Battery 38 is, for example, a primary battery or a secondary battery. The battery 38 stores electric power required to drive the communication unit 31 and the control unit 35 .

The communication unit 31 is a wireless module that performs wireless communication r1 with the wireless access device 10a. The communication unit 31 communicates with a plurality of wireless access devices 10a to 10c from one place in a room, for example. The communication unit 31 receives beacon signals transmitted from the radio access devices 10a to 10c. Further, the communication unit 31 receives an instruction from the control unit 35 to transmit the identification information, and transmits the identification information to the radio access devices 10a to 10c.

The control unit 35 is composed of a CPU, a RAM, a ROM, and the like. The identification information of the person who owns the communication device 30 or the identification information of the communication device 30 is stored in the control unit 35 . For example, the identification information of the person who owns the communication device 30 is the employee number of the company to which the person belongs, and the identification information of the communication device 30 is the management number or MAC (Media Access Control) address of the communication device 30. .

Next, the first system 40 will be explained. The first system 40 is a system that manages the operation of the electrical equipment 42 using a management device 41 or the like. The first system 40 can communicate with the second communication unit 12 described above. The identification information is registered in advance in the first system 40 .

The first system 40 receives management input information output from the radio access devices 10a to 10c. The first system 40 can derive which radio access device 10a-10c the communication device 30 is located near based on each radio field strength obtained via the radio access devices 10a-10c. This allows the first system 40 to acquire the location of the person carrying the communication device 30 . Also, the first system 40 controls each electrical device 42 based on the acquired management input information. For example, if the electrical device 42 is a lighting fixture, the first system 40 may control the lighting fixtures located near the area where the person is present to turn on. Also, the first system 40 may control the brightness of the lighting equipment based on the identification information acquired via the wireless access device 10a.

According to this communication system 1, it is possible to control the first system 40 according to information on the position of a person, the position of an object (instrument or equipment), the attribute of the person, and the attribute of the object.

In the above description, the form of deriving the position of the communication device 30 triggered by the beacon signal transmitted by the radio access apparatus 10a has been described, but the form of deriving the position of the communication device 30 is not limited to this. For example, the position of the communication device 30 may be derived by having the communication device 30 periodically broadcast a radio signal and the radio access apparatus 10a scanning the radio signal. More specifically, communication device 30 transmits an ADV (advertise) packet using wireless communication r1, and wireless access device 10a obtains the ID (identification information) of communication device 30 and radio wave intensity from the received ADV packet. It may be extracted and transmitted to the first system 40 , and the position of the communication device 30 may be measured by the first system 40 .

[3. Structure of Radio Access Device]
Next, the structure of the radio access device 10a will be described with reference to FIGS. 3 to 11. FIG. In this embodiment, the direction connecting the ceiling and floor of the building is defined as the vertical direction (Z-axis direction), and the direction perpendicular to the vertical direction is defined as the horizontal direction (X-axis direction or Y-axis direction). Also, with the wireless access device 10a attached to the ceiling of the building, the case where the wireless access device 10a is viewed from the floor side is referred to as "bottom view", and the case where the wireless access device 10a is viewed from behind the ceiling is referred to as "top view". ”.

FIG. 3 is a perspective view showing the radio access device 10a. FIG. 4 is a perspective view showing a state in which the cover 69 is separated from the radio access device 10a shown in FIG. FIG. 5 is a six-sided view showing the radio access device 10a. FIG. 6 is a top view of the radio access device 10a. FIG. 7 is a side view of the radio access device 10a. FIG. 8 is a cross-sectional view of the radio access device 10a viewed from the same direction as (a) of FIG.

The radio access device 10 a includes a housing 60 and a plurality of mounting portions 71 for mounting the housing 60 to the structure 91 . The building structure 91 has an opening 92 that penetrates the structure 91 in the thickness direction (see FIG. 8). The opening 92 is circular in bottom view and has a predetermined diameter. The diameter of the opening 92 is appropriately selected from a range of, for example, 70 mm or more and 100 mm or less.

The housing 60 of the radio access device 10a is made of a resin material that transmits radio waves. As shown in FIGS. 3 to 6, the housing 60 includes a housing main body 61 having a cylindrical shape extending in the vertical direction, and a bottom cover portion covering an opening on one end 61a side (lower side) of the housing main body 61. 62.

The housing body 61 has a cylindrically extending side surface portion 68 and a top surface portion 65 located on the side of the other end 61 b of the housing body 61 . The height dimension of the housing body 61 is greater than the thickness dimension of the structure 91 .

The bottom lid portion 62 has a circular shape when viewed from below. The bottom lid portion 62 has a brim-shaped outer peripheral portion 62 a that protrudes outward from the side portion 68 of the housing body 61 . The outer peripheral length of the bottom lid portion 62 is longer than the outer peripheral length of the housing body 61 .

The housing body 61 is inserted into the opening 92 of the structure 91 . Specifically, as shown in FIGS. 7 and 8, the housing 60 has a state in which at least a portion of the housing main body 61 is positioned inside the opening 92 and at least a portion of the bottom lid portion 62 is a structure. It is attached to the structure 91 in contact with the lower surface 91 a of the 91 . In this state, the upper contact surface 62b of the outer peripheral portion 62a of the bottom lid portion 62 is in contact with the lower surface 91a of the structure 91, and the mounting portion 71 is in contact with the upper surface 91b of the structure 91. As shown in FIG. That is, the housing 60 is fixed to the structure 91 by sandwiching the outer region 92 a of the opening 92 of the structure 91 between the bottom lid portion 62 and the mounting portion 71 . The volume of the portion of the housing body 61 positioned inside the opening 92 varies depending on the thickness of the structure 91, but the portion of the housing body 61 that is 1/4 or more and 3/4 or less is inside the opening 92. and the remaining portion is positioned above the upper surface 91 b of the structure 91 .

The attachment portion 71 has a pressing piece 71 a that contacts the upper surface 91 b of the structure 91 . The mounting portion 71 can be moved up and down by rotating the tightening screw 72 . Each of the mounting portion 71 and the tightening screw 72 is made of a metal material.

Here, a method of mounting the radio access device 10a using the mounting portion 71 will be described.

First, the housing body 61 is inserted into the opening 92 of the structure 91 and the contact surface 62b of the bottom cover 62 is brought into contact with the lower surface 91a of the structure 91 . Next, when the tightening screw 72 is rotated clockwise (in the case of a bottom view) with a tool such as a screwdriver, the mounting portion 71 rotates clockwise accordingly, and the pressing piece 71a of the mounting portion 71 is pushed into the housing. It abuts the sidewall 73 of the body 61 . The pressing piece 71a is restricted from clockwise rotational movement by the side wall 73, and is arranged at a position overlapping the outer region 92a of the opening 92 of the structure 91 when viewed from below. Further, when the tightening screw 72 is rotated clockwise, the mounting portion 71 moves downward along the axial direction of the tightening screw 72, and the pressing piece 71a contacts the upper surface 91b of the structure 91 (see FIG. 7). (see dashed line). As a result, the outer region 92a of the structure 91 is sandwiched between the mounting portion 71 and the outer peripheral portion 62a of the bottom lid portion 62, and the housing 60 is fixed to the ceiling.

Next, the control unit 15, the first communication unit 11 and the second communication unit 12 included in the radio access device 10a will be explained. The control unit 15, the first communication unit 11 and the second communication unit 12 are enclosed by the side surface part 68, the top surface part 65 and the bottom cover part 62 of the housing body 61 and housed inside the housing 60. .

As shown in FIG. A first substrate 63 and a second substrate 64 are provided inside the housing body 61 . A first substrate 63 is provided on the bottom cover portion 62 . The second substrate 64 is provided on the first substrate 63 with spacers 75 interposed therebetween. In other words, the first substrate 63 is arranged closer to the bottom lid portion 62 (lower side) than the second substrate 64 when viewed from the housing body 61 .

The controller 15 is mounted on the first substrate 63 . The first communication unit 11 is mounted on the main surface 63 a of the two main surfaces 63 a and 63 b of the first substrate 63 , which is located on the bottom lid portion 62 side when viewed from the housing body 61 . The second communication unit 12 is mounted on the main surface 64b of the two main surfaces 64a and 64b of the second substrate 64, which is located on the side of the other end 61b of the housing body 61 (the side of the top surface 65).

The first communication section 11 is connected to the control section 15 via wiring provided on the first substrate 63 . The second communication section 12 is connected to the control section 15 via a connector that connects the first board 63 and the second board 64 . Also, the second communication section 12 is connected to a terminal section 66 to be described later via wiring provided on the second substrate 64 .

Note that the first communication unit 11 may be provided at a position lower than the upper surface 91 b of the structure 91 when the radio access device 10 a is attached to the structure 91 . Further, the first communication section 11 may be provided at a central position between the plurality of mounting sections 71 when viewed from below.

Next, the fixing structure of the communication cable 93 connecting the radio access device 10a and the first system 40 will be described. FIG. 9 is a diagram showing the support section 67 that supports the communication cable 93 connected to the radio access device 10a.

As shown in FIG. 9, the radio access device 10a includes a terminal section 66 and a support section 67. As shown in FIG. The communication cable 93 is arranged on the housing 60 in a looped state and supported by the support portion 67 . One end of the communication cable 93 is connected to the terminal portion 66 .

The terminal section 66 is a connector that connects the communication cable 93 between the second communication section 12 and the first system 40 . Specifically, the terminal portion 66 is a housing connector for connecting a plug connector provided at the end of the communication cable 93 . The terminal portion 66 is provided on the side of the other end 61b of the housing body 61 (the side of the top surface portion 65). In addition, the terminal portion 66 is arranged inside the outer circumference of the housing body 61 when viewed from above.

The support portion 67 is a member that supports at least part of the communication cable 93 . The support portion 67 is provided on the side of the other end 61 b of the housing body 61 . The support portion 67 is arranged inside the outer circumference of the housing body 61 when viewed from above, and is arranged away from the terminal portion 66 . The support portion 67 is provided with an insertion hole 67a for inserting and supporting the communication cable 93 . In the present embodiment, since the communication cable 93 is supported by the support portion 67, even if water droplets adhere to the outer skin of the communication cable 93 due to dew condensation or the like, the water droplets run along the outer skin of the communication cable 93. It has a structure in which it falls near the support portion 67 . This makes it difficult for water droplets to reach the terminal portion 66 .

Next, the cover 69 and the like of the radio access device 10a will be described. FIG. 10 is a perspective view of the state in which the radio access device 10a is attached to the building structure 91, as viewed obliquely from below. FIG. 11 is a diagram showing a state where the cover 69 is separated from the radio access device 10a shown in FIG.

Three LED lamps are provided as the display section 13 on the bottom cover section 62 of the housing 60 (see FIG. 11). The radio access device 10 a also includes a cover 69 that covers the bottom lid portion 62 and the display portion 13 . Further, the cover 69 covers the first communication section 11 and the second communication section 12 when viewed from below. With this structure, the cover 69 protects the first communication section 11 , the second communication section and the display section 13 . Also, the cover 69 is made of a resin material that transmits radio waves. This allows the radio access device 10a to perform radio communication r1 with the communication device 30 with the cover 69 attached.

[4. effects, etc.]
A radio access device 10a according to the present embodiment is attached to a structure 91 forming part of a building. The radio access device 10a includes a first communication unit 11 that performs radio communication r1 with a communication device 30 different from the radio access device 10a, a second communication unit 12 that communicates with a first system 40 other than the communication device 30, and a first communication unit. 11 and the second communication unit 12 , and a mounting portion 71 for mounting the housing 60 to the structure 91 .

In this manner, the first communication unit 11 and the second communication unit 12 are housed in the housing 60, and the housing 60 is attached to the structure 91, so that, for example, an external object can It is possible to prevent troubles occurring in the communication unit by touching the communication unit such as the unit 12 .

Also, the second communication unit 12 may communicate with the first system 40 by wire.

According to this, in the wireless access device 10a that converts a wireless signal into a wired signal and transmits the wired signal to the first system 40, it is possible to prevent the communication unit from malfunctioning.

The structure 91 has an opening 92, and the housing 60 includes a cylindrical housing body 61 and a bottom provided on one end 61a side of the housing body 61 and having a longer outer circumference than the housing body 61. and a lid portion 62 . The housing 60 is attached to the structure 91 with at least a portion of the housing main body 61 positioned inside the opening 92 and with at least a portion of the bottom cover 62 in contact with the lower surface 91a of the structure 91. may be attached.

By attaching the housing 60 to the structure 91 in such a state that the bottom cover portion 62 is in contact with the lower surface 91 a of the structure 91 , the first communication section 11 and the second communication section 12 in the housing 60 can be connected to the outside. objects can be prevented from touching. Thereby, it is possible to suppress the occurrence of troubles in the communication unit.

Further, the housing 60 may be attached to the structure 91 by sandwiching the outer region 92 a of the opening 92 of the structure 91 between the bottom lid portion 62 and the attachment portion 71 .

According to this, the housing 60 can be reliably fixed to the structure 91, and the first communication section 11 and the second communication section 12 in the housing 60 can be stably held. Thereby, it is possible to suppress the occurrence of troubles in the communication unit.

A first substrate 63 on which the first communication unit 11 is mounted and a second substrate 64 on which the second communication unit 12 is mounted are provided in the housing 60. The first substrate 63 is , may be arranged closer to the bottom lid portion 62 than the second substrate 64 when viewed from the housing body 61 .

In this way, by forming the first communication unit 11 and the second communication unit 12 into a laminated structure, the area of the housing 60 can be reduced and the size of the radio access device 10a can be reduced.

Further, the first communication unit 11 may be mounted on the main surface 63 a of the two main surfaces 63 a and 63 b of the first substrate 63 , the main surface 63 a positioned on the bottom lid portion 62 side when viewed from the housing body 61 .

According to this, the first communication section 11 can be arranged close to the communication device 30 located on the bottom cover section 62 side, that is, on the floor side, and the communication between the first communication section 11 and the communication device 30 can be performed. It is possible to suppress the occurrence of defects.

Further, the wireless access device 10a further includes a terminal section 66 provided on the other end 61b side of the housing body 61 for connecting the communication cable 93 between the second communication section 12 and the first system 40; A support portion 67 provided on the other end 61 b side of the cable 61 and supporting at least a portion of the communication cable 93 may be provided.

According to this, the communication cable 93 can be supported using the support portion 67 , and the occurrence of communication problems between the second communication portion 12 and the first system 40 can be suppressed.

Moreover, the radio access device 10a further includes a display unit 13 for notifying information about the state of the radio access device 10a, and the display unit 13 may be provided in the bottom cover portion 62. FIG.

According to this, a maintenance company or the like of the radio access device 10a can confirm the power on/off state or the communication state of the radio access device 10a, for example.

Moreover, the radio access device 10 a may further include a cover 69 that covers the bottom lid portion 62 and the display portion 13 .

By covering the bottom lid portion 62 and the display portion 13 with the cover 69 in this manner, the first communication portion 11 , the second communication portion 12 and the display portion 13 in the housing 60 can be protected.

A communication system 1 according to the present embodiment includes the radio access apparatus 10a and a communication device 30 described above.

In this way, by including the radio access device 10a in the communication system 1, it is possible to prevent communication failures from occurring in the communication system 1. FIG.

A communication system 1 according to the present embodiment includes the radio access apparatus 10a, a communication device 30, and a first system 40 other than the communication device 30. FIG.

In this way, by including the radio access device 10a in the communication system 1, it is possible to prevent communication failures from occurring in the communication system 1. FIG.

[5. Modification 1 of Embodiment]
A radio access device 10a according to Modification 1 of the embodiment will be described with reference to FIGS. 12 to 14. FIG. Modification 1 describes an example in which the radio access device 10a is attached to a structure 95 supported by a building.

FIG. 12 is a schematic diagram showing a state in which the radio access device 10a according to Modification 1 is attached to a structure 95 supported by a building. FIG. 13 is a perspective view schematically showing the radio access device 10a and the structure 95 according to Modification 1. As shown in FIG. FIG. 14 is a cross-sectional view schematically showing the radio access device 10a and the structure 95 according to Modification 1. As shown in FIG.

As shown in Figure 12, the structure 95 is supported on the ceiling of the building. The structure 95 is made of a material that allows the inside of the structure 95 to be seen through. Note that the structure 95 may be subjected to diffusion treatment.

As shown in FIGS. 13 and 14, the structure 95 is cylindrical and has an opening 92 at one end 95a and a top surface 96 at the other end 95b. The top surface portion 96 is fixed to the ceiling by a fastening member 98 or the like.

As shown in FIG. 14, one end portion 95a of the structure 95 is provided with a hook portion 97 protruding inward from the inner wall surface of the structure 95. As shown in FIG. This hook portion 97 corresponds to the outer region 92a of the opening 92 shown in the above embodiment.

The housing body 61 of the wireless access device 10a is inserted into the opening 92 of the structure 95. As shown in FIG. The housing 60 is configured such that at least a portion of the housing main body 61 is positioned inside the opening 92 and at least a portion of the bottom lid portion 62 is in contact with the lower surface of the structure 95 (the lower surface 97a of the hook portion 97). It is attached to the structure 95 in this state. In this state, the upper contact surface 62b of the outer peripheral portion 62a of the bottom lid portion 62 is in contact with the lower surface 97a of the hook portion 97, and the mounting portion 71 is in contact with the upper surface 97b of the hook portion 97. That is, the housing 60 is fixed to the structure 95 by sandwiching the outer region 92 a that is part of the structure 95 between the bottom cover portion 62 and the mounting portion 71 .

A radio access device 10a according to this modification is attached to a structure 95 supported by a building. The radio access device 10a includes a first communication unit 11 that performs radio communication r1 with a communication device 30 different from the radio access device 10a, a second communication unit 12 that communicates with a first system 40 other than the communication device 30, and a first communication unit. 11 and the second communication unit 12, and a mounting portion 71 for mounting the housing 60 to the structure 95.

In this manner, the first communication unit 11 and the second communication unit 12 are housed in the housing 60, and the housing 60 is attached to the structure 95, so that, for example, an external object can It is possible to prevent troubles occurring in the communication unit by touching the communication unit such as the unit 12 .

(Other embodiments)
Although the radio access devices 10a to 10c and the communication system 1 according to the embodiments have been described above, the present invention is not limited to the above embodiments.

Although the radio access device used for LPS has been described as an example in this embodiment, the present invention is not limited to this. The wireless access device may be used as a wireless access point that transmits and receives data to and from the communication device 30 using a communication method such as WiFi (registered trademark).

The wireless access device may also include a human sensor (eg, camera, infrared sensor, or heat sensor) for detecting people.

Also, in the communication system 1 of the embodiment, an example in which the radio access device 10a and the first system 40 are directly connected has been shown, but the present invention is not limited to this. For example, a device different from the first system 40 may be provided between the radio access device 10a and the first system 40, and the management device 41 may be connected to that device. The first system 40 may be a cloud.

Also, in the communication system 1 of the embodiment, an example in which the first system 40 includes the management device 41 and the electric device 42 is shown, but the present invention is not limited to this. For example, the first system 40 may include an external system such as a disaster prevention system, a security system, a power monitoring system, or an air conditioning control system.

In addition, a form obtained by applying various modifications to the embodiment that a person skilled in the art can think of, and a form realized by arbitrarily combining the constituent elements and functions of each embodiment within the scope of the present invention. is also included in the present invention.

1 communication system 10a, 10b, 10c wireless access device 11 first communication unit 12 second communication unit 13 display unit 30 communication device 40 first system 60 housing 61 housing main body 61a one end 61b other end 62 bottom cover 63 first Substrates 63a, 63b main surface 64 second substrate 64a, 64b main surface 65 top surface portion 66 terminal portion 67 support portion 69 cover 71 mounting portion 91 structure 91a lower surface 92 opening 92a outer region 93 communication cable 95 structure 97a lower surface r1 wireless communication

Claims (10)

a radio access device;
a communication device different from the radio access device;
a first system other than the communication device;
A communication system comprising:
The radio access device,
attached to a structure forming part of a building or a structure supported by said building;
a first communication unit that wirelessly communicates with the communication device in the building ;
a second communication unit that communicates with the first system;
a housing that houses the first communication unit and the second communication unit;
a mounting portion for mounting the housing to the structure,
The first system obtains the position of the communication device based on the radio wave intensity obtained via the wireless access device, and the illumination in the building provided by the first system based on the position of the communication device. control the brightness of the fixture
Communications system. The communication system according to claim 1, wherein the second communication unit performs wired communication with the first system. The structure has an opening,
The housing has a cylindrical housing body and a bottom lid portion provided on one end side of the housing body and having a longer outer peripheral length than the housing body, and at least a part of the housing body is The communication system according to claim 1 or 2, wherein the communication system is attached to the structure while being located inside the opening and at least a part of the bottom cover is in contact with the lower surface of the structure. The communication system according to claim 3, wherein the housing is attached to the structure by sandwiching the outer region of the opening of the structure between the bottom lid portion and the attachment portion. A first substrate on which the first communication unit is mounted and a second substrate on which the second communication unit is mounted are provided in the housing,
The communication system according to claim 3 or 4, wherein the first substrate is arranged closer to the bottom cover portion when viewed from the housing body than the second substrate. 6. The communication system according to claim 5, wherein the first communication unit is mounted on one of both main surfaces of the first substrate, the main surface located on the side of the bottom cover when viewed from the housing body. Furthermore, the radio access device
a terminal section provided on the other end side of the housing body for connecting a communication cable between the second communication section and the first system;
The communication system according to any one of claims 3 to 6, further comprising: a support portion provided on the other end side of the housing body and supporting at least part of the communication cable. Furthermore, the radio access device comprises a display unit that displays information about the state of the radio access device,
The communication system according to any one of claims 3 to 7, wherein the display section is provided on the bottom cover section. 9. The communication system according to claim 8, wherein said radio access device further comprises a cover that covers said bottom cover and said display. a radio access device attached to a structure forming part of a building or a structure supported by said building;
a communication device different from the radio access device, communicating with the radio access device;
a first system other than the communication device, which communicates with the radio access apparatus;
A control method for a communication system comprising
a first step of obtaining radio field strength of a signal transmitted from the communication device in the building to the wireless access apparatus;
a second step of obtaining a location of the communication device based on the radio field strength;
a third step of controlling the brightness of lighting fixtures in the building included in the first system based on the position of the communication device obtained in the second step;
A control method for a communication system including

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