Apparatus system, program, and display method

Abstract

To cause a communication terminal to identify, a connection destination apparatus.SOLUTION: The present invention provides an apparatus system having: an apparatus having a radio communication unit that can communicate by radio with a communication terminal, and an address book management unit that manages an address book storing information on the addresses of one or more apparatuses; and a program for causing the communication terminal to function as an address book acquisition unit that acquires the address book from the apparatus, a radio wave strength detection unit that detects strength of radio waves transmitted from a radio communication apparatus, and a display control unit that displays the radio communication apparatus being a connection candidate identified on the basis of the radio wave strength detected by the radio wave strength detection unit and the address book acquired by the address book acquisition unit.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a device system, a program, and a display method. [Background technology]

[0002] There is a known technology for simply and wirelessly connecting devices such as electronic whiteboards to communication terminals such as smartphones. The communication terminal connected to the device can display the screen data of the communication terminal on the device and send files to the device.

[0003] An address book may be set in a device for data transmission and the like (see, for example, Patent Document 1). Patent Document 1 discloses a technique for storing an address book in a data server and synchronizing the address book in the data server with the device to keep the address book up to date. Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional technology, it is sometimes difficult for a communication terminal to identify a connected device. For example, Bluetooth Low Energy (registered trademark) may be used when a communication terminal wirelessly communicates with a device. A communication terminal can detect a nearby device based on radio wave strength (RSSI: Received Signal Strength Indicator). However, when a wireless communication device using Bluetooth Low Energy exists in addition to the device around the communication terminal, the communication terminal may detect this wireless communication device, making it difficult to identify the wireless communication device based on the radio wave strength.

[0005] The present invention provides a technique that enables a communication terminal to identify a device to which the communication terminal is to be connected. [Means for solving the problem]

[0006] In view of the above problems, the present invention provides a device having a wireless communication unit capable of wirelessly communicating with a communication terminal and an address book management unit that manages an address book in which address information of one or more devices is written; The communication terminal, An equipment system is provided having a program for functioning as an address book acquisition unit that acquires the address book from the equipment, a radio wave strength detection unit that detects the radio wave strength of wireless signals transmitted from a wireless communication equipment, and a display control unit that displays the wireless communication equipment as candidates for connection, identified based on the radio wave strength detected by the radio wave strength detection unit and the address book acquired by the address book acquisition unit. Effect of the Invention

[0007] The present invention allows a communication terminal to specify a connection destination device. [Brief description of the drawings]

[0008] [Figure 1] 11 is a diagram illustrating a method for identifying an electronic whiteboard with which a communication terminal communicates wirelessly when a plurality of wireless communication devices are present around the communication terminal. FIG. [Diagram 2] FIG. 1 is a schematic configuration diagram of an equipment system including an electronic whiteboard. [Diagram 3] FIG. 2 is a diagram illustrating an example of a hardware configuration of an electronic whiteboard, which is an example of a device. [Figure 4] FIG. 2 is a diagram illustrating an example of a hardware configuration of a communication terminal. [Diagram 5] FIG. 2 is an example of a functional block diagram illustrating functions of a communication terminal and an electronic whiteboard, divided into blocks. [Figure 6] FIG. 13 is a diagram illustrating that an address book is prepared according to user attributes. [Figure 7] 4 is a diagram showing an example of an address book stored in an address book storage unit; FIG. [Figure 8] 11 is an example of a sequence diagram illustrating a process of connecting a communication terminal to an electronic whiteboard for the first time; [Figure 9] FIG. 11 is a flowchart illustrating a process performed when the electronic whiteboard and the communication terminal are connected to each other; [Figure 10] 11 is a flowchart illustrating an example of a process in which a communication terminal displays an electronic whiteboard as a connection candidate. [Figure 11] FIG. 2 is a diagram illustrating an example of an address book held by the communication terminal. [Figure 12] 5 is a diagram illustrating an example of radio wave intensity detected by a radio wave intensity detection unit. FIG. [Figure 13] 13 is an example of a flowchart illustrating a process in which the communication terminal identifies a device based on the address book in FIG. 11 and the radio wave intensity in FIG. 12. [Figure 14] FIG. 13 is a diagram showing an example of a connection candidate list screen displayed by the communication terminal when the user is an employee. [Figure 15] FIG. 13 is a diagram showing an example of a connection candidate list screen displayed by the communication terminal when the user is a guest. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a device system and a display method performed by the device system will be described as an example of an embodiment of the present invention.

[0010] <Outline of identifying the electronic whiteboard to which the communication terminal is connected> An outline of the process of identifying the electronic whiteboard 2 to which the communication terminal 30 is connected in this embodiment will be described with reference to Fig. 1. Fig. 1 is a diagram for explaining a method of identifying the electronic whiteboard 2 with which the communication terminal 30 communicates wirelessly when multiple wireless communication devices are present around the communication terminal 30. Here, the wireless communication device refers to a device (including the electronic whiteboard 2 and others) capable of wireless communication such as Bluetooth Low Energy (registered trademark) or wireless LAN.

[0011] (1) When the communication terminal 30 communicates with the electronic whiteboard 2A, the address book A can be obtained from the electronic whiteboard 2A. In the address book A, the device name and address (for example, MAC address) of the electronic whiteboard 2 are registered.

[0012] (2) When the communication terminal 30 communicates with the electronic whiteboard 2B, the address book B can be obtained from the electronic whiteboard 2B. The structure of the address book B may be the same as that of the address book A.

[0013] (3) When the communication terminal 30 communicates with the headset 9, the headset 9 does not have an address book, so the address book is not acquired. In this way, when the wireless communication device with which the communication terminal 30 has communicated is the interactive whiteboard 2, the communication terminal 30 acquires the address book.

[0014] (4) Next, assume that the user wants to connect the communication terminal 30 to the electronic whiteboard 2 for a meeting or the like. The user performs a predetermined operation on an application executed on the communication terminal 30, causing the communication terminal 30 to detect surrounding wireless communication devices. In response to the user's operation, the communication terminal 30 detects the radio wave intensity from the surrounding wireless communication devices. When the radio wave intensity is detected, the communication terminal 30 acquires the radio wave intensity in association with the address.

[0015] (5) The communication terminal 30 compares the address of the wireless communication device acquired when detecting the radio wave strength with the address set in the address book, and displays the wireless communication device with the strongest radio wave strength preferentially. In FIG. 1, the wireless communication device with the strongest radio wave strength, "xA-xx-xx-0A", does not exist in the address book of the communication terminal 30, so the communication terminal 30 determines that it is not the electronic whiteboard 2 and displays "unknown" in the third place. The wireless communication device with the second strongest radio wave strength, "xx-xx-xx-01", exists in the address book and is found to be the electronic whiteboard 2 in "Electronic Whiteboard Office A, 1F-A Meeting Room", so the communication terminal 30 displays "Electronic Whiteboard Office A, 1F-A Meeting Room" first. The wireless communication device with the third strongest radio wave strength, "xx-xx-xx-11", exists in the address book and is found to be the electronic whiteboard 2 in "Electronic Whiteboard Office B, 1F-B Meeting Room", so the communication terminal 30 displays "Electronic Whiteboard Office B, 1F-B Meeting Room" in the second place. In addition, the electronic whiteboard in "Electronic Whiteboard A Office 1F-A Conference Room" or "Electronic Whiteboard B Office 1F-B Conference Room" is likely to be electronic whiteboard 2A or 2B, but the electronic whiteboard 2 in the address book is not necessarily the electronic whiteboard 2A or 2B whose radio wave strength was detected.

[0016] In this way, the communication terminal 30 of the present embodiment can identify an electronic whiteboard 2 with a high priority based on the address book in which the electronic whiteboard 2 is described, received from the electronic whiteboard 2, and the radio wave strength when wirelessly communicating with the electronic whiteboard 2. Therefore, even if the radio wave strength of a wireless communication device is strong, the priority of a wireless communication device that is not set in the address book can be lowered, making it easy for the user to select the electronic whiteboard 2 to connect to.

[0017] <Terminology> Radio wave strength is the strength of radio waves received by the communication terminal 30 from a wireless communication device. One type of radio wave strength is RSSI. RSSI is "received signal strength" and is a value indicating the strength of a received signal input to the communication terminal 30. The communication terminal 30 generates a value approximately proportional to the logarithmic value (dBμV) of the received receiver input voltage, and outputs it as the RSSI value.

[0018] Address information is identification information that identifies a wireless communication device on a network, and can be used as a data destination or source. In this embodiment, the MAC address is mainly used as an example, but as will be described later, a product name or, in the case of a wireless LAN, an SSID (Service Set Identifier) ​​may also be used. An address book is a collection of one or more pieces of address information.

[0019] A wireless communication device is a device capable of wireless communication. Wireless communication devices include the electronic whiteboard 2 and devices other than the electronic whiteboard 2 that perform wireless communication. Also, a device is a wireless communication device with which the communication terminal 30 transmits and receives screen data and files. In this embodiment, the device corresponds to, for example, the electronic whiteboard 2. Wireless communication devices other than the electronic whiteboard 2 are diverse, such as headsets, earphones, smartphones, mice, keyboards, printers, speakers, microphones, and PCs.

[0020] <System Overview> Next, the system configuration will be described with reference to Fig. 2. Fig. 2 is a schematic configuration diagram of an equipment system 100 including an electronic whiteboard 2 according to this embodiment. In Fig. 2, two electronic whiteboards 2A and 2B are communicatively connected via a network. Hereinafter, any one of the two electronic whiteboards 2A and 2B will be referred to as "electronic whiteboard 2". Although two electronic whiteboards 2A and 2B are shown in Fig. 2, only one electronic whiteboard 2 is required in this embodiment.

[0021] The electronic whiteboard 2 is a device that uses a touch panel to display handwritten characters, figures, and the like on a display or the like in real time. If the electronic whiteboard 2 has a function for connecting to a network N, screen data including handwritten data displayed on the display can be synchronized with other electronic whiteboards 2. The touch panel of the electronic whiteboard 2 may be of any type, such as an infrared blocking type, a capacitance type, a resistive film type, or an electromagnetic induction type. The electronic whiteboard 2 may also be of a type that detects the position of a pen with a camera or ultrasonic waves and projects handwritten data with a projector. The electronic whiteboard 2 may be called an electronic whiteboard, an electronic information board, or the like.

[0022] The electronic whiteboard 2 has an address book of other electronic whiteboards 2 including the electronic whiteboard 2 itself. The administrator preinstalls in each electronic whiteboard 2 the address books of one or more electronic whiteboards 2 on the floor or building on which the electronic whiteboard 2 is installed. The administrator may also repurpose the address book for the electronic whiteboard 2 to communicate with other electronic whiteboards 2. The address book will be described in detail later.

[0023] The network N is a network such as the Internet or a LAN, etc. The network N may include a connection section via wireless communication such as mobile communication or a wireless LAN, for example.

[0024] The electronic whiteboard 2 is merely one example of a device that wirelessly communicates with the communication terminal 30. The device may be a device having an address book, such as an electronic whiteboard 2, a multifunction printer, a projector, a video conference terminal, a digital signage, a drone, a robot, a telephone, a television receiver, etc. The device may also be a game machine, a general-purpose PC terminal, a surveillance camera, or an industrial device with a communication function. The industrial device includes medical equipment, agricultural equipment such as a tiller, etc.

[0025] The electronic whiteboard 2 can communicate with the communication terminal 30 wirelessly via Bluetooth Low Energy or the like. The communication terminal 30 may be any device capable of wirelessly communicating with the electronic whiteboard 2. The communication terminal 30 is, for example, a smartphone, a tablet terminal, a desktop PC, a notebook PC, a PDA (Personal Digital Assistant), or the like.

[0026] The communication terminal 30 communicates wirelessly with the electronic whiteboard 2 and transmits screen data currently being displayed by the communication terminal 30 to the electronic whiteboard 2. The electronic whiteboard 2 can display the received screen data on a display. The communication terminal 30 can also transmit to the electronic whiteboard 2 files that it has stored in advance or files it has acquired from a network. The communication terminal 30 can also download files stored in the electronic whiteboard 2 from the electronic whiteboard 2. The files may be image data such as photographs, PDF files, or other files that are primarily displayed by the electronic whiteboard 2. In addition, setting files related to the operation of the electronic whiteboard 2, etc. may be transmitted.

[0027] A possible configuration is that communication between the communication terminal 30 and the electronic whiteboard 2 uses Bluetooth Low Energy, which has high power-saving performance, until they detect each other, and then uses wireless LAN, which is advantageous in terms of speed, when transmitting screen data or files.

[0028] The equipment system 100 may also include a server device. In this case, the server device enables the electronic whiteboards 2 at remote locations to start communicating with each other by establishing a communication session between the electronic whiteboards 2. For example, when the electronic whiteboards 2 at each location notify the server device that they are powered on, the electronic whiteboard 2 at one location displays the electronic whiteboards 2 at the other locations that are powered on based on an address book. When a user selects an electronic whiteboard 2 at another location, the server device calls the electronic whiteboard 2 at the other location, allowing the electronic whiteboard 2 at one location to start communicating with the electronic whiteboard 2 at the other location.

[0029] Furthermore, the server device may manage address books of multiple electronic whiteboards 2. Each electronic whiteboard 2 receives the address book from the server device and provides it to the communication terminal 30.

[0030] 2 is an example. For example, the number of electronic whiteboards 2 shown in the figure is two, but the number of electronic whiteboards 2 may be any number.

[0031] <Hardware configuration> <<Electronic whiteboard>> Fig. 3 is a hardware configuration diagram of an example of a device, an electronic whiteboard 2. As shown in Fig. 3, the electronic whiteboard 2 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, an SSD (Solid State Drive) 204, a network I / F 205, and an external device connection I / F (Interface) 206.

[0032] Of these, the CPU 201 controls the overall operation of the electronic whiteboard 2. The ROM 202 stores programs used to drive the CPU 201, such as the CPU 201 and an IPL (Initial Program Loader). The RAM 203 is used as a work area for the CPU 201. The SSD 204 stores various data, such as programs for the electronic whiteboard 2. The network I / F 205 controls communication with a communication network. The external device connection I / F 206 is an interface for connecting various external devices. In this case, the external devices are, for example, a USB (Universal Serial Bus) memory 230 and external devices (a microphone 240, a speaker 250, and a camera 260).

[0033] The electronic whiteboard 2 also includes a capture device 211, a GPU 212, a display controller 213, a contact sensor 214, a sensor controller 215, an electronic pen controller 216, a short-range communication circuit 219, an antenna 219a of the short-range communication circuit 219, a power switch 222, and selection switches 223.

[0034] Of these, the capture device 211 displays video information as still images or moving images on the display of an external PC (Personal Computer) 270. The GPU (Graphics Processing Unit) 212 is a semiconductor chip that specializes in graphics. The display controller 213 controls and manages the screen display to output an output image from the GPU 212 to a display 280 or the like. The contact sensor 214 detects that an electronic pen 290, a user's hand H, or the like has contacted the display 280. The sensor controller 215 controls the processing of the contact sensor 214. The contact sensor 214 inputs and detects coordinates by an infrared blocking method. The method of inputting and detecting the coordinates is a method in which two light receiving and emitting devices installed at both ends of the upper side of the display 280 emit a plurality of infrared rays in parallel to the display 280, and receive the light that is reflected by a reflecting member installed around the display 280 and returns along the same optical path as the optical path of the light emitted by the light receiving element. The contact sensor 214 outputs the ID of the infrared light radiated by the two light receiving and emitting devices that is blocked by the object to the sensor controller 215, and the sensor controller 215 identifies the coordinate position that is the contact position of the object. The electronic pen controller 216 determines whether the pen tip or the pen tail touches the display 280 by communicating with the electronic pen 290. The short-range communication circuit 219 is a communication circuit such as NFC (Near Field Communication) or Bluetooth (registered trademark). The power switch 222 is a switch for switching the power of the electronic whiteboard 2 between ON and OFF. The selection switches 223 are, for example, a group of switches for adjusting the brightness and shade, color, etc. of the display 280.

[0035] Furthermore, the electronic whiteboard 2 includes a bus line 210. The bus line 210 is an address bus, a data bus, or the like for electrically connecting the components such as the CPU 201 shown in FIG.

[0036] The contact sensor 214 is not limited to an infrared blocking type, and may use various detection means such as a capacitive touch panel that identifies the contact position by detecting a change in capacitance, a resistive film touch panel that identifies the contact position by a voltage change between two opposing resistive films, or an electromagnetic induction touch panel that identifies the contact position by detecting electromagnetic induction caused by a contacting object touching the display unit. The electronic pen controller 216 may determine whether or not a touch has been made not only on the tip and bottom of the electronic pen 290, but also on the part of the electronic pen 290 that the user holds or on other parts of the electronic pen.

[0037] <<Communication terminal>> Fig. 4 is a hardware configuration diagram of an example of the communication terminal 30. It is assumed that the communication terminal 30 in Fig. 4 is a smartphone. As shown in Fig. 4, the communication terminal 30 includes a CPU 701, a ROM 702, a RAM 703, an EEPROM 704, a CMOS sensor 705, an image sensor I / F 706, an acceleration / direction sensor 707, a media I / F 709, and a GPS receiver 711.

[0038] Among these, the CPU 701 controls the operation of the entire communication terminal 30. The ROM 702 stores programs used to drive the CPU 701, such as the CPU 701 and the IPL. The RAM 703 is used as a work area for the CPU 701. The EEPROM 704 reads or writes various data such as applications under the control of the CPU 701. The CMOS sensor 705 (Complementary Metal Oxide Semiconductor) is a type of built-in imaging means that captures an image of a subject (mainly a self-portrait) under the control of the CPU 701 to obtain image data. The CMOS sensor 705 may be an imaging means such as a CCD (Charge Coupled Device) sensor. The imaging element I / F 706 is a circuit that controls the driving of the CMOS sensor 705. The acceleration / direction sensor 707 is various sensors such as an electronic magnetic compass or gyrocompass that detects geomagnetism, and an acceleration sensor. The media I / F 709 controls the reading or writing (storing) of data from or to a recording medium 708 such as a flash memory. The GPS receiver 711 receives GPS signals from GPS satellites.

[0039] The communication terminal 30 also has a long-distance communication circuit 712, a CMOS sensor 713, an image sensor I / F 714, a microphone 715, a speaker 716, an audio input / output I / F 717, a display 718, an external device connection I / F 719, a short-distance communication circuit 720, an antenna 720a of the short-distance communication circuit 720, and a touch panel 721.

[0040] Among these, the long-distance communication circuit 712 is a circuit that communicates with devices via a communication network. The CMOS sensor 713 is a type of built-in imaging means that captures an image of a subject and obtains image data under the control of the CPU 701. The imaging element I / F 714 is a circuit that controls the driving of the CMOS sensor 713. The microphone 715 is a built-in circuit that converts sound into an electric signal. The speaker 716 is a built-in circuit that converts an electric signal into physical vibration to generate sound such as music or voice. The sound input / output I / F 717 is a circuit that processes input and output of sound signals between the microphone 715 and the speaker 716 under the control of the CPU 701. The display 718 is a type of display means such as a liquid crystal or organic EL (Electro Luminescence) that displays an image of a subject, various icons, etc. The external device connection I / F 719 is an interface for connecting various external devices. The short-distance communication circuit 720 is a communication circuit such as NFC (Near Field Communication) or Bluetooth (registered trademark). The touch panel 721 is a type of input means that allows the user to operate the communication terminal 30 by pressing the display 718 .

[0041] The communication terminal 30 also includes a bus line 710. The bus line 710 is an address bus, a data bus, or the like for electrically connecting the components such as the CPU 701 shown in FIG.

[0042] <About the function> Next, functions of the communication terminal 30 and the electronic whiteboard 2 will be described with reference to Fig. 5. Fig. 5 is an example of a functional block diagram in which functions of the communication terminal 30 and the electronic whiteboard 2 are explained by dividing them into blocks.

[0043] <<Communication terminal>> The communication terminal 30 has a wireless communication unit 31, a display control unit 32, an operation reception unit 33, an address book acquisition unit, a radio wave intensity detection unit 35, a device identification unit 36, a determination unit 37, and an address book storage unit 3001. Each of these units of the communication terminal 30 is a function or means realized by the CPU 701 shown in FIG. 4 executing instructions included in one or more programs installed in the communication terminal 30. This program is, for example, an application for communication with the electronic whiteboard 2 installed in the communication terminal 30. The address book storage unit 3001 is formed in the EEPROM 704 or the RAM 703 shown in FIG. 4. The address book stored in the address book storage unit 3001 is the same as the address book stored in the address book storage unit 2001, so the address book will be described together with the electronic whiteboard 2. Note that the functions shown in FIG. 5 are those for the communication terminal 30 to perform processing and control for identifying the electronic whiteboard 2, and the main functions are mainly shown in this embodiment.

[0044] The wireless communication unit 31 wirelessly communicates with the electronic whiteboard 2 and transmits and receives various information. In communication by Bluetooth Low Energy, pairing may or may not be required. In this embodiment, the user may pair the communication terminal 30 with the electronic whiteboard 2 as necessary, or pairing is not required. In the case of wireless LAN, it is assumed that the SSID and network key of the wireless LAN router (access point) have been set in the communication terminal 30. In the case of wireless LAN, the electronic whiteboard 2 may have an access point. Wi-Fi Direct (registered trademark) is available as a one-to-one (peer to peer) communication between the communication terminal 30 and the electronic whiteboard 2.

[0045] The display control unit 32 displays a screen generated by an application on the display 718. For example, this application is an application that transmits screen data being displayed on the display 718 to the electronic whiteboard 2 or transmits a file. The display control unit 32 also displays on the display 718 a list of wireless communication devices in order of priority based on the address book acquired by the address book acquisition unit 34 and the radio wave intensity detected by the radio wave intensity detection unit 35.

[0046] The operation reception unit 33 receives various operations for the communication terminal 30. In this embodiment, the operation reception unit 33 receives a selection of the electronic whiteboard 2 as a communication destination from a list of wireless communication devices.

[0047] The address book acquisition unit 34 acquires the address book from the electronic whiteboard 2 via the wireless communication unit 31.

[0048] The radio wave intensity detection unit 35 detects the radio wave intensity when the wireless communication unit 31 communicates with a wireless communication device. Although RSSI is known as an example of radio wave intensity, it is not limited to RSSI as long as the radio wave intensity is known.

[0049] The device identifying unit 36 ​​identifies the electronic whiteboard 2 present in the address book by searching the address book acquired by the address book acquiring unit 34 for the address of the wireless communication device acquired in association with the radio wave strength of the wireless communication device detected by the radio wave strength detecting unit 35. The device identifying unit 36 ​​also identifies the wireless communication device in descending order of radio wave strength. That is, the device identifying unit 36 ​​preferentially identifies devices with the strongest radio wave strength among devices having an address book.

[0050] <<Electronic whiteboard>> The electronic whiteboard 2 has a wireless communication unit 21, an address book management unit 22, an authentication unit 23, and an address book storage unit 2001. Each of these units of the electronic whiteboard 2 is a function or means realized by the CPU 201 shown in Fig. 3 executing instructions contained in one or more programs installed in the electronic whiteboard 2. The address book storage unit 2001 is formed in the SSD 204 or RAM 203 shown in Fig. 3. The functions shown in Fig. 5 perform processing and control related to the transmission of the address book, and mainly show the main functions in this embodiment.

[0051] The wireless communication unit 21 wirelessly communicates with the communication terminal 30 in accordance with a communication procedure such as Bluetooth Low Energy or wireless LAN. In this embodiment, the wireless communication unit 21 transmits an address book to the communication terminal 30 in response to a request from the communication terminal 30.

[0052] The address book management unit 22 manages the address book in the address book storage unit 2001. The address book management unit 22 reads the file of the address book distributed via a network or stored in a USB memory or the like, and stores it in the address book storage unit 2001. The address book management unit 22 acquires the address book from the address book storage unit 2001. The administrator can edit the address book.

[0053] The authentication unit 23 authenticates a user who uses the communication terminal 30. For example, when the wireless communication unit 31 of the communication terminal 30 starts communication with the electronic whiteboard 2, the authentication unit 23 requests a user ID and a password from the communication terminal 30. If a pair of a user ID and a password that matches the pair of the user ID and the password transmitted from the communication terminal 30 is registered in advance, the authentication unit 23 determines that the authentication of the user has been successful. If the authentication is successful, the user is identified. For example, if the user is an employee, the name, etc. are identified, and if the user is a guest (a visitor who is not an employee), the user is identified as a guest. The user ID and the password of the guest may be displayed by the electronic whiteboard 2 or may be attached to a wall or the like. In addition, with regard to employees, the authentication unit 23 may authenticate using biometric authentication information such as an IC card or a fingerprint. In addition, the authentication may be performed by an external authentication server instead of the electronic whiteboard 2.

[0054] <<About the address book>> Next, the address book will be described with reference to Fig. 6 and Fig. 7. Fig. 6 is a diagram explaining that the address book is prepared according to the attributes of the user. The electronic whiteboard 2 of this embodiment holds an address book for employees and an address book for guests. The authentication unit 23 judges whether the user is an employee or a guest at the time of authentication.

[0055] The employee address book contains, for example, the address of the electronic whiteboard 2 on the floor where the electronic whiteboard 2 is installed. Since the employee selects an electronic whiteboard 2 contained in the address book, it is possible to prevent connection to an electronic whiteboard 2 on another floor (another company) in the same building. In addition, the guest address book contains the addresses of electronic whiteboards 2 that can be used by guests. In this way, it is possible to prevent connection between an electronic whiteboard 2 that cannot be used by guests and the guest's communication terminal 30, even within the same company.

[0056] FIG. 7 shows an example of an address book stored in the address book storage unit 2001. FIG. 7(a) shows, for example, an address book for employees. The addresses of one or more electronic whiteboards 2 are registered in the address book. This address book has the addresses of electronic whiteboards 2 owned by the business establishment where this electronic whiteboard 2 is used. The electronic whiteboards 2 owned by the business establishment are electronic whiteboards 2 with which the electronic whiteboard 2 communicates for meetings, etc., and the address book may include electronic whiteboards 2 other than those owned by the business establishment. The electronic whiteboards 2 set in the address book also include the user's own electronic whiteboard 2.

[0057] In the address book, device names and addresses are set in association with each other. The device name field is set to a name that is easily recognizable by a human being and is given to the electronic whiteboard 2. The device name can be given arbitrarily by the user and can be edited from the electronic whiteboard 2 or the communication terminal 30. In the address field, an address on the network is set to identify the electronic whiteboard 2 during communication. The address is, for example, a MAC address, but it may also be a product name that can be obtained when detecting radio wave strength. In addition, in the case of a wireless LAN, the address may be an SSID. The "Available functions" item sets functions that users of the communication terminal 30 can use on the electronic whiteboard 2. Available functions include screen sharing and file sending and receiving. This makes it easier to maintain the security of the electronic whiteboard 2. For example, it is possible to restrict the electronic whiteboard 2 used by employees to allow screen sharing and file sending and receiving, but to allow only screen sharing on an electronic whiteboard 2 used by a guest.

[0058] The electronic whiteboard 2 can have multiple address books. The same electronic whiteboard 2 may be registered in multiple address books. A case in which one electronic whiteboard 2 has multiple address books may be, for example, an address book that lists electronic whiteboards 2 owned by a certain company and an address book that lists electronic whiteboards 2 owned by business office A of the company.

[0059] FIG. 7(b) shows an address book for guests. The address books in FIG. 7(a) and FIG. 7(b) are address books that the same electronic whiteboard 2 sends to the communication terminal 30, but the guest address book contains fewer electronic whiteboards 2 than the employee address book. This makes it easy to restrict the electronic whiteboards 2 that guests can connect to. Also, the only function available in the guest address book is "screen data transmission." Therefore, it is possible to restrict the functions that guests can use with the electronic whiteboard 2. In this way, the functions that the communication terminal 30 can use with the electronic whiteboard 2 differ depending on the user attributes.

[0060] <Communication between the electronic whiteboard and communication terminal> Next, the communication process between the communication terminal 30 and the electronic whiteboard 2 will be described with reference to Fig. 8. Fig. 8 is a sequence diagram for explaining the process of the first connection between the communication terminal 30 and the electronic whiteboard 2. The "first connection" is used because, in this embodiment, it is described that the address book is sent at the first connection, and the connection is also performed from the second time onwards.

[0061] The wireless communication unit 21 of the electronic whiteboard 2 periodically transmits advertisements defined by the Bluetooth Low Energy standard to the surroundings. Advertising refers to notifying the surrounding communication terminals 30 of its existence (informing them of the type of service it provides by UUID) at regular intervals using broadcast communication.

[0062] S1: The wireless communication unit 31 of the communication terminal 30 is scanning. Scanning refers to a reception state in which an advertisement frame is received. When the wireless communication unit 31 receives an advertisement and the UUID is a UUID corresponding to itself, a connection request is made to the electronic whiteboard 2.

[0063] S2: The wireless communication unit 21 of the interactive whiteboard 2 makes a connection response to the connection request. The connection response is a response indicating that the connection request has been normally received and therefore permits continuation of the connection process.

[0064] S3: The wireless communication unit 31 of the communication terminal 30 and the wireless communication unit 21 of the electronic whiteboard 2 authenticate each other. If necessary, the user inputs the PIN code displayed by the electronic whiteboard 2 into the communication terminal 30. The PIN code is sent to the electronic whiteboard 2, and if it matches the PIN code displayed by the electronic whiteboard 2, pairing is completed. When pairing is completed, a link key is generated, and transmitted information is encrypted using the link key during communication. This exchange of the link key is called bonding.

[0065] S4: When the authentication is successful, if it is the first connection, the address book acquisition unit 34 of the communication terminal 30 requests the address book from the electronic whiteboard 2 via the wireless communication unit 31. A method of determining whether it is the first connection or not will be described later.

[0066] S 5 : The wireless communication unit 21 of the interactive whiteboard 2 receives the request, and the address book management unit 22 transmits the address book acquired from the address book storage unit 2001 to the communication terminal 30 .

[0067] S6: When the sending and receiving of the address book is completed, the connection process between the communication terminal 30 and the electronic whiteboard 2 is completed. After this, the communication terminal 30 can send screen data to the electronic whiteboard 2 or send files.

[0068] The electronic whiteboard 2 may transmit a different address book to each communication terminal 30 based on the authentication result. For example, a method is considered in which the communication terminals 30 are divided into those for employees and those for guests. Details will be described later.

[0069] Fig. 9 is a flow chart for explaining the process when connecting the interactive whiteboard 2 and the communication terminal 30. Fig. 9 explains in detail the processes of steps S4 and S5 in Fig. 8.

[0070] First, the wireless communication unit 31 of the communication terminal 30 transmits an authentication request to the information processing system (S10). The authentication request includes authentication information such as a user ID and a password, and the authentication unit 23 of the interactive whiteboard 2 authenticates the user. Here, it is assumed that the authentication of the user is successful and the attribute (employee, guest) is identified.

[0071] The determination unit 37 of the communication terminal 30 determines whether or not the connection to the electronic whiteboard 2 to be connected this time is the first connection (S11). Whether or not the connection is the first connection is determined, for example, as follows. Whether or not pairing has already been performed (since the OS stores the product name of a wireless communication device with which it has been paired in the past, the determination unit 37 can determine whether or not this is the first connection by inquiring of the OS). Whether or not the address book obtained from the currently connected electronic whiteboard 2 is being held. Even if an address book obtained from the currently connected electronic whiteboard 2 is held, whether or not the address of the currently connected electronic whiteboard 2 is set in the address book. In other words, if the address of the currently connected electronic whiteboard 2 is not listed in the address book, it is determined that this is the first connection.

[0072] Since the communication terminal 30 receives the address book from the electronic whiteboard 2 only at the first connection, the user's waiting time can be shortened from the second connection onwards.

[0073] In the case of the first connection (Yes in S11), the determination unit 37 determines whether or not an address book corresponding to the connected electronic whiteboard 2 is already held (S12). By this determination, for example, even if it is the first connection, if the currently connected electronic whiteboard 2 is listed in the address book acquired from another electronic whiteboard 2, the address book acquisition step can be skipped. This is because, regardless of which electronic whiteboard 2 the address book was acquired from, if the electronic whiteboard 2 is listed in the address book held by the communication terminal 30, this electronic whiteboard 2 can be displayed with priority. In this way, it is possible to prevent an increase in the number of address books stored in the address book storage unit 3001. However, even if the currently connected electronic whiteboard 2 is listed in the address book acquired from another electronic whiteboard 2, the address book may be acquired from the currently connected electronic whiteboard 2.

[0074] If the determination in step S12 is Yes, the address book acquisition unit 34 acquires an address book for employees or guests from the currently connected electronic whiteboard 2 via the wireless communication unit 31 (S13). The address book management unit 22 of the electronic whiteboard 2 transmits the address book for employees or guests associated with the attributes of the user to the communication terminal 30 via the wireless communication unit 21 based on the authentication result by the authentication unit 23. That is, the address book management unit 22 transmits a different address book according to the attributes of the user to the communication terminal 30 via the wireless communication unit 31. The address book acquisition unit 34 of the communication terminal 30 stores the address book in the address book storage unit 3001 together with a notice that the address book was acquired from the electronic whiteboard 2 (associated with the address of the electronic whiteboard 2).

[0075] When the address book acquisition unit 34 acquires the address book, the wireless communication unit 31 completes the connection with the electronic whiteboard 2 (S14). In this way, by the communication terminal 30 acquiring the address book at the time of the first connection, it becomes easier for the user to select the electronic whiteboard 2 from the second time onwards.

[0076] However, the communication terminal 30 may obtain the address book from the electronic whiteboard 2 each time it is connected, not just the first time. In this case, the communication terminal 30 can always update the address book to the latest one when it is connected.

[0077] In addition, the address book acquired by the communication terminal 30 does not have to be held by the electronic whiteboard 2; the electronic whiteboard 2 may acquire an address book held on a data server or the like via a network, and then transfer it to the communication terminal 30.

[0078] <Display of wireless communication devices using radio wave strength> Next, a process in which the communication terminal 30 displays a list of wireless communication devices when the communication terminal 30 holds an address book will be described.

[0079] Fig. 10 is a flow chart illustrating the process in which the communication terminal 30 displays a connection candidate electronic whiteboard 2. Suppose that the user wishes to connect the communication terminal 30 to the electronic whiteboard 2 for a meeting or the like. The process in Fig. 10 is started when the user performs a predetermined operation on an application executed on the communication terminal 30 to cause the communication terminal 30 to detect surrounding wireless communication devices.

[0080] First, the wireless communication unit 31 of the communication terminal 30 detects a surrounding wireless communication device having a radio wave intensity equal to or greater than a certain value (S31). Whether the radio wave intensity is equal to or greater than a certain value is determined by the radio wave intensity detection unit 35. The timing for detecting a wireless communication device may be at a certain time interval, or may be obtained when the user performs some operation.

[0081] The device identification unit 36 ​​determines whether or not the communication terminal 30 holds an address book for the electronic whiteboard in the address book storage unit 3001 (S32). The address book for the electronic whiteboard is an address book acquired from the electronic whiteboard 2. After the initial connection, the address book storage unit 3001 stores the address book together with a message indicating that the address book was acquired from the electronic whiteboard 2.

[0082] If the determination in step S32 is Yes, the device identification unit 36 ​​identifies the electronic whiteboards 2 registered in the address book in order of radio wave strength, and the display control unit 32 displays the electronic whiteboards 2 in order of radio wave strength (S33). The device identification unit 36 ​​also displays wireless communication devices not registered in the address book in order of radio wave strength following the electronic whiteboard 2. Even if a new electronic whiteboard 2 not in the address book is installed, the communication terminal 30 displays it as an unknown device, so the user can select this electronic whiteboard 2 and start communication.

[0083] If the determination in step S32 is No, the display control unit 32 displays the wireless communication devices in order of radio wave strength (S34). Even in this case, the display control unit 32 may determine whether the wireless communication device is the electronic whiteboard 2 from the vendor address of the MAC address or the like, by utilizing the fact that the general-purpose Bluetooth Low Energy transmits a MAC address.

[0084] <Display list of wireless communication devices> The address book held by the communication terminal 30 and the list of wireless communication devices displayed according to the radio wave intensity will be described.

[0085] Fig. 11 shows an address book held by the communication terminal 30 as an example. Note that available functions are omitted in Fig. 11. The address book in Fig. 11(a) lists, for example, the address of an electronic whiteboard 2 held at business establishment A. The address book in Fig. 11(b) lists the address of an electronic whiteboard 2 held at business establishment B.

[0086] Fig. 12 is an example of radio wave intensity detected by the radio wave intensity detection unit 35. As shown in Fig. 12, the radio wave intensity detection unit 35 can acquire radio wave intensity and a MAC address. Note that, since the communication terminal 30 can receive the product name in Bluetooth Low Energy, the MAC address may be the product name. In this case, the MAC address in the address book is also the product name.

[0087] Furthermore, when the communication terminal 30 communicates via a wireless LAN, the MAC address may be the SSID. In this case, the MAC address in the address book is also the SSID.

[0088] Fig. 13 is a flow chart for explaining the process in which the communication terminal 30 specifies a device based on the address book in Fig. 11 and the radio wave intensity in Fig. 12. Fig. 13 shows more detailed process of step S33 in Fig. 10.

[0089] The device identification unit 36 ​​searches all of the address books stored therein for MAC addresses associated with radio wave strength (S41).

[0090] The device identification unit 36 ​​sorts the interactive whiteboards 2 that match the search in descending order of radio wave strength (S42).

[0091] Next, the device identifying unit 36 ​​sorts the wireless communication devices that did not match the search in descending order of radio wave strength (S43).

[0092] Next, the display control unit 32 determines whether the user of the communication terminal 30 is an employee or a guest (S44). At the stage of the process of step S44, the communication terminal 30 is not communicating with the electronic whiteboard 2, so the display control unit 32 may communicate with the electronic whiteboard 2 when the communication terminal 30 connects for the first time and use the authentication result transmitted from the electronic whiteboard 2.

[0093] If the user is an employee (Yes in S44), the display control unit 32 displays a connection candidate list screen in which the wireless communication devices sorted in step S43 are displayed consecutively on the electronic whiteboard 2 sorted in step S42 (S45).

[0094] If the user is a guest (No in S44), the display control unit 32 displays a connection candidate list screen including only the interactive whiteboards 2 sorted in step S42 (S46).

[0095] <<Connection candidate list screen>> FIG. 14 shows a connection candidate list screen 300 displayed by the communication terminal 30 when the user is an employee. As shown in FIG. 14, the priority, device name, radio wave strength, and MAC address are displayed for each wireless communication device. The priority indicates the display order. The device name is written in the address book. The radio wave strength is a value detected by the radio wave strength detection unit 35. The MAC address may be obtained from the address book, or may be obtained by the radio wave strength detection unit 35 when detecting the radio wave strength. The radio wave strength and MAC address are shown for the purpose of explanation, and do not have to be on the connection candidate list screen 300 for the user to select the electronic whiteboard 2.

[0096] When the addresses associated with the radio wave strengths in FIG. 12 are searched in the address book in FIG. 11(a)(b), "xx-xx-xx-01", "xx-xx-xx-03", and "xx-xx-xx-07" are listed in the address book among the addresses associated with the radio wave strengths in FIG. 12. Therefore, the connection candidate list screen 300 in FIG. 14 displays the device names having the addresses "xx-xx-xx-01", "xx-xx-xx-03", and "xx-xx-xx-07". In addition, "xA-xx-xx-0A" and "xC-xx-xx-0C" are not listed in the address book among the addresses associated with the radio wave strengths in FIG. 12. Therefore, the device names of the wireless communication devices having the addresses "xA-xx-xx-0A" and "xC-xx-xx-0C" are unknown in the connection candidate list screen 300 in FIG. 14.

[0097] 14, the electronic whiteboards 2 are displayed in order of radio wave strength, making it easier for the user to select the electronic whiteboard 2 closest to him / her. Also, wireless communication devices other than the electronic whiteboard 2 are displayed in order of radio wave strength, so even if a new electronic whiteboard 2 is installed, the user can select this new electronic whiteboard 2.

[0098] The operation reception unit 33 receives the electronic whiteboard 2 selected by the user on the connection candidate list screen 300, and the wireless communication unit 31 specifies the MAC address, etc., and connects by performing the process of FIG. 8, for example (as this is not the first connection, the communication terminal 30 does not need to obtain an address book). After connection, the communication terminal 30 can send screen data or files to the electronic whiteboard 2 according to the user's operation within the scope of the available functions. In addition, the communication terminal 30 can download files from the electronic whiteboard 2.

[0099] FIG. 15 shows a connection candidate list screen 310 displayed by the communication terminal 30 when the user is a guest. It is assumed that the radio wave strength is as shown in FIG. 12, and the address book held by the communication terminal 30 is as shown in FIG. 7(b). Of the addresses associated with the radio wave strength in FIG. 12, "xA-xx-xx-0A" and "xC-xx-xx-0C" are listed in the address book. Therefore, the connection candidate list screen 310 in FIG. 15 displays device names having the addresses "xA-xx-xx-0A" and "xC-xx-xx-0C". In addition, the electronic whiteboards 2 having the addresses "xx-xx-xx-01", "xx-xx-xx-03", and "xx-xx-xx-07", which are not listed in the address book, are not displayed on the connection candidate list screen 310.

[0100] Only the electronic whiteboards 2 listed in the address book are displayed on the guest's communication terminal 30, so the guest, who is a user, can select only the electronic whiteboards 2 for the guest. Therefore, it is possible to prevent the guest from selecting the electronic whiteboards 2 for employees from the connection candidate list screen 300 as shown in FIG.

[0101] When the user is a guest, the communication terminal 30 displays the connection candidate list screen 300. However, when the user selects an unknown wireless communication device (i.e., a device not in the address book), the communication terminal 30 may display a message indicating that connection is not possible.

[0102] <Major Effects> The communication terminal 30 of the present embodiment can identify an electronic whiteboard 2 with a high priority based on an address book containing a list of electronic whiteboards received from the electronic whiteboard 2 and on the radio wave strength when wirelessly communicating with the electronic whiteboard 2. Therefore, even if the radio wave strength of a wireless communication device is strong, the priority of a wireless communication device that is not set in the address book can be lowered, making it easy for the user to select an electronic whiteboard 2 to connect to.

[0103] <Other application examples> The above describes the best mode for carrying out the present invention using examples, but the present invention is not limited to these examples in any way, and various modifications and substitutions can be made within the scope that does not deviate from the gist of the present invention.

[0104] For example, the communication terminal 30 may change the display order of the electronic whiteboards 2 depending on the usable functions. For example, when the radio wave strength is above a certain level, the communication terminal 30 displays the electronic whiteboards 2 in order of the number of usable functions (priority) rather than in order of radio wave strength. The user may be able to search for electronic whiteboards 2 having functions that they can use. The communication terminal 30 may display electronic whiteboards 2 in order of radio wave strength and electronic whiteboards 2 in order of the number of functions on the same screen.

[0105] The communication terminal 30 may display the product name that can be acquired through Bluetooth Low Energy communication together with the device name on the connection candidate list screen 300 or the connection candidate list screen 310. For example, if the electronic whiteboard 2 is newly installed and is not listed in the address book, the user can select the electronic whiteboard 2 by its product name.

[0106] When only one electronic whiteboard 2 is displayed on the connection candidate list screen 300 or the connection candidate list screen 310, the communication terminal 30 may automatically connect to the electronic whiteboard 2 (without the user selecting it).

[0107] Furthermore, the present embodiment can be suitably applied to any information processing device having a touch panel, not limited to the electronic whiteboard 2. Examples of information processing devices equipped with a touch panel include PCs, tablet terminals, and smartphones that have touch panels. These are usually general-purpose information processing devices, but when an application that functions as a display device is executed, the user can operate them as a display device.

[0108] In addition, the configuration example in Fig. 4 and the like is divided according to main functions in order to facilitate understanding of the processing by the electronic whiteboard 2 and the communication terminal 30. The present invention is not limited by the manner in which the processing units are divided or the names of the processing units. The processing by the electronic whiteboard 2 and the communication terminal 30 can be divided into more processing units according to the processing contents. Also, it can be divided so that one processing unit includes more processes.

[0109] Each function of the above-described embodiments can be realized by one or more processing circuits. Here, the term "processing circuit" in this specification includes a processor programmed to execute each function by software, such as a processor implemented by an electronic circuit, and a device such as an ASIC (Application Specific Integrated Circuit), a DSP (digital signal processor), an FPGA (field programmable gate array), or a conventional circuit module designed to execute each function described above.

[0110] Embodiments of the present invention provide significant improvements in computer power and functionality. These improvements allow users to utilize computers that provide more efficient and robust interaction with tables, which are ways of storing and presenting information in information processing devices. Furthermore, embodiments of the present invention provide a better user experience through the use of more efficient, powerful and robust user interfaces. Such user interfaces provide better interaction between humans and machines.

[0111] <Additional Notes> [Appendix 1] A wireless communication unit capable of wirelessly communicating with a communication terminal; an address book management unit that manages an address book in which address information of one or more devices is described; and The communication terminal, an address book acquisition unit that acquires the address book from the device; a radio wave intensity detection unit for detecting the intensity of a radio wave transmitted from a wireless communication device; a display control unit that displays the wireless communication devices to be connected as candidates, which are specified based on the radio wave intensity detected by the radio wave intensity detection unit and the address book acquired by the address book acquisition unit; and a program to function as a An equipment system having the above configuration. [Appendix 2] 2. The equipment system according to claim 1, wherein the address book acquisition unit acquires the address book from the currently connected equipment when the equipment has not been connected to the currently connected equipment in the past. [Appendix 3] 2. The equipment system according to claim 1, wherein the address book acquisition unit acquires the address book from the currently connected equipment when the address book acquired from the equipment is not held. [Appendix 4] The equipment system described in Appendix 1, wherein the address book acquisition unit acquires the address book from the currently connected equipment when the address book holds an address book acquired from the currently connected equipment but the currently connected equipment is not listed in the address book. [Appendix 5] the radio wave intensity detection unit detects the radio wave intensity in association with identification information of the wireless communication device; The address book has identification information of the device set therein, The program causes the communication terminal to a wireless communication device that is not set in the address book and that has the same identification information as the identification information of the wireless communication device set in the address book; The equipment system according to any one of appendices 1 to 4, wherein the display control unit displays the devices set in the address book in priority over the wireless communication devices that are not set in the address book. [Appendix 6] The equipment system according to claim 5, wherein the display control unit displays the devices set in the address book and the wireless communication devices not set in the address book in order of highest radio wave strength. [Appendix 7] The device has an authentication unit that authenticates a user, The equipment system according to claim 5 or 6, wherein the address book management unit transmits the address book, which differs depending on the attributes of the user authenticated by the authentication unit, to the communication terminal via the wireless communication unit. [Appendix 8] In the address book, functions that the communication terminal can use with respect to the device are set in association with identification information of the device, The equipment system according to claim 7, wherein the functions that the communication terminal can use with respect to the equipment differ depending on the attributes of the user. [Appendix 9] If the user's attribute is an employee, The device system according to claim 7, wherein the display control unit displays the devices set in the address book and the wireless communication devices not set in the address book. [Appendix 10] If the user's attribute is guest, The device system according to claim 7, wherein the display control unit displays only the devices set in the address book. [Appendix 11] 8. The device system according to claim 7, wherein the display control unit displays the devices set in the address book in descending order of the number of functions. [Appendix 12] The device is an electronic whiteboard; 11. The equipment system according to any one of claims 1 to 10, wherein the communication terminal and the electronic whiteboard communicate with each other using Bluetooth Low Energy. [Explanation of symbols]

[0112] 2. Electronic whiteboard 30 Communication terminals 100 Equipment Systems [Prior art documents] [Patent documents]

[0113] [Patent Document 1] JP 2016-165099 A

Claims

1. A wireless communication unit capable of wirelessly communicating with a communication terminal; an address book management unit that manages an address book in which address information of one or more devices is described; and The communication terminal, an address book acquisition unit that acquires the address book from the device; a radio wave intensity detection unit for detecting the intensity of a radio wave transmitted from a wireless communication device; a display control unit that displays the wireless communication devices to be connected as candidates, which are specified based on the radio wave intensity detected by the radio wave intensity detection unit and the address book acquired by the address book acquisition unit; and a program to function as a An equipment system having the above configuration.

2. The device system according to claim 1 , wherein the address book acquisition unit acquires the address book from the currently connected device when the currently connected device has not been connected to the device in the past.

3. The device system according to claim 1 , wherein the address book acquisition unit acquires the address book from the currently connected device when the address book acquired from the currently connected device is not held.

4. The equipment system according to claim 1 , wherein the address book acquisition unit acquires the address book from the currently connected equipment when the currently connected equipment is not listed in the address book, although the address book is acquired from the currently connected equipment.

5. the radio wave intensity detection unit detects the radio wave intensity in association with identification information of the wireless communication device; The address book has identification information of the device set therein, The program causes the communication terminal to a wireless communication device that is not set in the address book and that has the same identification information as the identification information of the wireless communication device set in the address book; An equipment system according to any one of claims 1 to 4, wherein the display control unit displays the devices set in the address book in priority to the wireless communication devices that are not set in the address book.

6. The device system according to claim 5 , wherein the display control unit displays the devices set in the address book and the wireless communication devices not set in the address book in order of decreasing radio wave strength.

7. The device has an authentication unit that authenticates a user, The device system according to claim 5 , wherein the address book management unit transmits the address book, which differs depending on an attribute of the user authenticated by the authentication unit, to the communication terminal via the wireless communication unit.

8. In the address book, functions that the communication terminal can use with respect to the device are set in association with identification information of the device, 8. The equipment system according to claim 7, wherein functions that the communication terminal can use with respect to the equipment differ depending on the attribute of the user.

9. If the user's attribute is an employee, The device system according to claim 7 , wherein the display control unit displays the device set in the address book and the wireless communication device not set in the address book.

10. If the user's attribute is guest, The device system according to claim 7 , wherein the display control unit displays only the device set in the address book.

11. The device system according to claim 7 , wherein the display control unit displays the devices set in the address book in descending order of the number of functions.

12. The device is an electronic whiteboard; The equipment system according to claim 1 , wherein the communication terminal and the electronic whiteboard communicate with each other using Bluetooth Low Energy.

13. A device that manages an address book that contains the address information of one or more devices and a communication terminal that can wirelessly communicate with the device. an address book acquisition unit that acquires the address book from the device; a radio wave intensity detection unit for detecting the intensity of a radio wave transmitted from a wireless communication device; a display control unit that displays the wireless communication devices to be connected as candidates, which are specified based on the radio wave intensity detected by the radio wave intensity detection unit and the address book acquired by the address book acquisition unit; A program to function as a

14. A wireless communication unit capable of wirelessly communicating with a communication terminal; an address book management unit that manages an address book in which address information of one or more devices is described; and an address book acquisition unit that acquires the address book from the device; a radio wave intensity detection unit for detecting the intensity of a radio wave transmitted from a wireless communication device; a display control unit that displays the wireless communication devices as candidates for connection, which are specified based on the radio wave intensity detected by the radio wave intensity detection unit and the address book acquired by the address book acquisition unit; and an equipment system having the communication terminal.

15. A display method performed by a device system in which a device and a communication terminal communicate wirelessly, comprising: The device comprises: A process of transmitting an address book containing address information of one or more devices to the communication terminal is performed; The communication terminal includes: A process of acquiring the address book from the device; A process of detecting radio wave intensity transmitted from a wireless communication device; A process of displaying the wireless communication device as a candidate for connection, which is specified based on the detected radio wave intensity and the acquired address book; How to display.

16. A display method performed by a device that manages an address book in which address information of one or more devices is described and a communication terminal that can wirelessly communicate with the device, comprising: A process of acquiring the address book from the device; A process of detecting radio wave intensity transmitted from a wireless communication device; A process of displaying the wireless communication device as a candidate for connection, which is specified based on the detected radio wave intensity and the acquired address book; How to display.

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