JP2018182572A - Mobile terminal, communication system, communication method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile terminal, communication system, communication method, and program that can efficiently perform a process to cause an apparatus to connect with an AP when there are a plurality of APs.SOLUTION: A mobile terminal of the present invention includes storage means, communication means, and communication control means. The storage means stores connection information on each of a plurality of access points. The communication means obtains apparatus type information and installation information from an apparatus. The communication control means maintains control to perform either a first communication process to transmit all the connection information stored in the storage means to the apparatus on the basis of the apparatus type information or a second communication process to transmit the connection information on an access point with the highest radio wave intensity to the apparatus on the basis of the installation information.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a mobile terminal, a communication system, a communication method, and a program.

  An access point (hereinafter sometimes referred to as "AP") for connecting a terminal or device to a network and a station indicating a device to be connected to the access point (hereinafter sometimes referred to as "STA") Device Provisioning Protocol (hereinafter referred to as “DPP”) for connecting an STA to an AP using a smart device (portable terminal) such as a tablet or a smartphone that has become widespread in recent years with regard to Wi-Fi technology for connecting The specification of the technology is being formulated by the Wi-Fi Alliance.

  In DPP, the smart device obtains AP connection information from the AP, passes the information to the STA, and causes the STA to connect to the AP. However, when there are multiple APs and the smart device has multiple connection information, it is necessary to control the timing of passing the connection information and which connection information to pass depending on the nature and installation status of the STA, but DPP So you can not control them. Therefore, there is a problem that the process of connecting the STA (device) to the AP can not be efficiently performed when there are a plurality of APs.

  The present invention has been made in view of the above, and provides a mobile terminal, a communication system, a communication method, and a program capable of efficiently executing a process of connecting a device to an AP when there are a plurality of APs. The purpose is

  In order to solve the problems described above and to achieve the object, the present invention is a portable terminal for connecting an apparatus to an access point, the connection showing information for connecting to the access point for each of the plurality of access points. Communication means for acquiring, from the device, device type information indicating the type of the device, and installation information indicating whether the device is installed at a predetermined position, from storage means for storing information; First communication processing for transmitting all the connection information stored in the storage unit to the device based on the device type information, and the connection information of the access point having the highest signal strength based on the installation information Communication control means for performing control to execute any one of the second communication processes for transmitting to the device.

  According to the present invention, the process of connecting a device to an AP can be efficiently performed when there are a plurality of APs.

FIG. 1 is a diagram showing an example of a conventional communication system. FIG. 2 is a diagram for explaining a conventional problem. FIG. 3 is a diagram showing an example of the configuration of the communication system of the embodiment. FIG. 4 is a diagram illustrating an example of a hardware configuration of the smart device according to the embodiment. FIG. 5 is a diagram illustrating an example of functions of the smart device according to the embodiment. FIG. 6 is a diagram showing an example of the UI screen. FIG. 7 is a diagram showing an example of the RSSI list. FIG. 8 is a flowchart illustrating an operation example of the smart device according to the embodiment. Drawing 9 is a figure showing an example of the function which the heater of an embodiment has. FIG. 10 is a sequence diagram showing an example of an operation procedure of the communication system of the embodiment.

  Hereinafter, embodiments of a portable terminal, a communication system, a communication method, and a program according to the present invention will be described in detail with reference to the attached drawings.

  Before describing the specific contents of the embodiment, the premised DPP will be described. FIG. 1 is a diagram illustrating an example of a communication system to which DPP is applied. The communication system illustrated in FIG. 1 includes an AP, a smart device (mobile terminal), and a heater (an example of a STA) that is a DPP compatible device.

  DPP is a standard that causes a STA (a heater in the example of FIG. 1) to join a network using a smart device. The DPP compatible device can communicate with an external device by public key encryption. The DPP-compliant device possesses a private key and a public key to be paired, passes the public key to the communication partner, holds the private key so as not to leak outside, and performs authentication processing and encrypted communication. .

  The DPP compatible device has predetermined code information (in this example, a QR code (registered trademark)) including a public key. The smart device can obtain the public key of the DPP compatible device by scanning the QR code (registered trademark) of the DPP compatible device. The smart device performs an authentication process and generates an encryption key for communication using the public key acquired from the DPP compatible device.

  Also, the AP has predetermined code information (in this example, a QR code (registered trademark)) including connection information for connecting to the AP. The smart device can obtain connection information of the AP by scanning a QR code (registered trademark) of the AP, and can connect to the AP using the connection information. Also, the smart device can connect the heater to the AP by passing the connection information acquired from the AP to the heater. The connection information here is information required for connection to the AP, which is defined by DPP. For example, the connection information includes an SSID for identifying the AP, a passphrase (security key), a type of encryption, a MAC address, and the like.

  Hereinafter, an example of the flow of connection processing by DPP will be described. (1) First, the smart device scans the QR code (registered trademark) of the AP to acquire connection information, and connects to the AP using the acquired connection information.

  (2) Next, the smart device scans the heater's QR code (registered trademark) to obtain a public key. (3) Next, the smart device performs an authentication process with the heater to establish communication. (4) Next, the smart device passes the connection information of the AP to the heater (communication is performed encrypted).

  (5) The heater connects to the AP using the connection information received from the smart device. In this way, by using a UI rich smart device, devices with poor UI (poor) devices (such as IoT devices) can be easily joined to the network.

  Here, as shown in FIG. 2, it is assumed that the communication system includes a plurality of APs (AP1, AP2, AP3) and a plurality of STAs (STA1, STA2, STA3, STA4, STA5, STA5, STA6). When it is desired to connect six STAs to a network through three APs, for example, it is conceivable to connect STA1 / STA2 to AP1, STA3 / STA4 to AP2, and STA5 / STA6 to AP3. If such connection is desired, the existing DPP specification requires the following process.

  First, processing in the case of connecting STA1 / STA2 to AP1 will be described. The smart device scans the QR code (registered trademark) of AP1, acquires connection information, and connects to AP1. Next, the smart device scans the QR code (registered trademark) of STA1 to obtain a public key, performs authentication processing with STA1, and establishes communication. Then, the smart device passes the connection information acquired from the AP1 to the STA1, and connects the STA1 to the AP1. Similarly, the smart device scans the QR code (registered trademark) of STA2 to obtain a public key, performs authentication processing with STA2, and establishes communication. Then, the smart device passes the connection information acquired from the AP1 to the STA2, and connects the STA2 to the AP1.

  Next, processing in the case of connecting STA3 / STA4 to AP2 will be described. The smart device scans the QR code (registered trademark) of AP2 to obtain connection information, and connects with AP2. Next, the smart device scans the QR code (registered trademark) of STA3 to obtain a public key, performs authentication processing with STA3, and establishes communication. Then, the smart device passes the connection information acquired from the AP 2 to the STA 3 and connects the STA 3 to the AP 2. Similarly, the smart device scans the QR code (registered trademark) of the STA 4 to obtain a public key, performs authentication processing with the STA 4, and establishes communication. Then, the smart device passes the connection information acquired from the AP 2 to the STA 4 and connects the STA 4 to the AP 2.

  Next, processing in the case of connecting STA5 / STA6 to AP3 will be described. The smart device scans the QR code (registered trademark) of AP3 to obtain connection information, and connects with AP3. Next, the smart device scans the QR code (registered trademark) of the STA 5 to obtain a public key, performs authentication processing with the STA 5, and establishes communication. Then, the smart device passes the connection information acquired from the AP 3 to the STA 5 and connects the STA 5 to the AP 3. Similarly, the smart device scans the QR code (registered trademark) of the STA 6 to obtain a public key, performs authentication processing with the STA 6, and establishes communication. Then, the smart device passes the connection information acquired from the AP 3 to the STA 6 to connect the STA 6 to the AP 3.

  As described above, the smart device has to repeat the operation of scanning for an AP to which the STA is to be connected and then scanning the STA. The operation of changing the AP to be scanned is complicated depending on which AP wants to connect the STA to be operated. In addition, the user must be aware of which AP is connected to which STA, which may cause an operation error. In addition, in the office etc., there is often a usage scene that it is sufficient to which AP to connect the STA to a certain extent, and in that case, it is a waste of time and effort that the user consciously operates the connection destination AP. turn into. This is the same as in the case of the R-wan connection, and there is no problem as long as it can be connected to the R-wan no matter which AP it is connected to.

  The above usage scene is a case where there are a plurality of APs of the same SSID and passphrase, and the STA may be connected to any of them. In the existing Wi-Fi, if the SSID, the passphrase, and the wireless authentication encryption method match, it is automatically connected to an AP with a strong field strength and distributed in a well-balanced manner. However, in DPP, even with the same SSID, passphrase, and wireless authentication encryption method, IDs are assigned to each AP and they are distinguished from each other, so it is necessary to have connection information of each AP (in AP1 In order to make a connection, it is necessary to have connection information of AP1.) It can not be distributed by radio wave strength like existing Wi-Fi.

  In view of the above problems, it is convenient if it is possible to take a method in which the smart device first acquires connection information of AP 1 to 3 first and then distributes to STAs. However, according to the existing DPP specifications, when the smart device collectively has connection information of a plurality of APs, it can not determine which connection information should be passed to the STA, and such a case can not be coped with.

  Therefore, in the present embodiment, the smart device acquires, from the STA, device type information indicating the type of device and installation information indicating whether the device is installed at a predetermined position. Then, when the acquired device type information indicates that the acquired device type information is a portable terminal (mobile device), the smart device executes a first communication process for transmitting connection information of all the APs on hand to the STA, and acquires the communication information. If the device type information indicates that the device is not a mobile device, and if the acquired installation information indicates that the device is installed at a predetermined position (indicating that it has been installed), the connection of the AP with the highest radio wave strength is used. A second communication process is performed to transmit information to the STA.

  Hereinafter, specific contents of the present embodiment will be described.

  FIG. 3 is a diagram showing an example of the configuration of the communication system 1 of the present embodiment. As shown in FIG. 3, the communication system 1 includes two APs 10 (10-a, 10-b), a smart device 20, and four heaters 30 (30-a, 30-b, 30-c, 30- d) and.

  In this example, although a heater is mentioned as an example of STA, it is not restricted to this. In the following description, AP10-a and AP10-b are simply referred to as "AP10" when they are not distinguished from one another, and simply when they are not distinguished from one another between heaters 30-a, 30-b, 30-c and 30-d. It is called "heater 30".

  FIG. 4 is a diagram illustrating an example of a hardware configuration of the smart device 20 which is an example of the “mobile terminal”. As shown in FIG. 4, the smart device 20 includes a central processing unit (CPU) 21, a read only memory (ROM) 22, a random access memory (RAM) 23, a hard disc drive (HDD) 24, and an input unit. 25, a display unit 26, and a communication I / F (interface) 27. The hardware configuration of the AP 10 and STA (in this example, the heater 30) is also the same as that shown in FIG. Further, for example, in the case of the smart device 20, the form may further include an imaging unit (camera) or the like.

  The CPU 21 controls the operation of the smart device 20 in a centralized manner by executing a program to realize various functions of the smart device 20. Various functions of the smart device 20 will be described later.

  The ROM 22 is a non-volatile memory, and stores various data (information written at the manufacturing stage of the smart device 20) including a program for activating the smart device 20. The RAM 23 is a volatile memory having a work area of the CPU 21. The HDD is an example of an auxiliary storage device, and stores various data such as a program executed by the CPU 21.

  The input unit 25 is a device for the user using the smart device 20 to perform various operations. The display unit 26 is a device that displays various types of information. The display unit 26 is configured of, for example, a liquid crystal display, an organic EL (Electro Luminescence) display, or the like. The input unit 25 and the display unit 26 may be integrally configured, for example, in the form of a touch panel.

  The communication I / F 27 is an interface for communicating with an external device (such as the AP 10 or the heater 30).

  FIG. 5 is a diagram illustrating an example of the function of the smart device 20. As shown in FIG. 5, the smart device 20 includes a wireless communication unit 201, a connection information acquisition unit 202, a connection information storage unit 203, a communication control unit 204, a public key acquisition unit 205, and a UI unit 206.

  The wireless communication unit 201 performs Wi-Fi connection processing and wireless communication. In this example, the wireless communication unit 201 is an example of the “communication means”, and from the heater 30 (an example of the device), device type information indicating the type of the device and whether the device is installed at a predetermined position And setting information indicating. When communication between the smart device 20 and the heater 30 is established, the heater 30 transmits an information packet including the above-described device identification information and the above-described installation information to the smart device 20, and the wireless communication unit 201 Receive a packet. Here, the function of the wireless communication unit 201 is realized by the CPU 21 executing a program to control the communication I / F 27.

  The connection information acquisition unit 202 is an example of “connection information acquisition means”, and acquires connection information (information for connecting to the AP 10) from the AP 10. More specifically, the connection information acquisition unit 202 acquires connection information by reading predetermined code information (QR code (registered trademark) in this example) provided in the AP 10. In the present embodiment, the connection information acquisition unit 202 is at a stage before communication between the smart device 20 and the heater 30 is established (at a stage before reading a QR code (registered trademark) of the heater 30 described later), The connection information of the AP 10-a and the connection information of the AP 10-b are acquired in advance. Here, the function of the connection information acquisition unit 202 is realized by the CPU 21 executing a program. Further, for example, the smart device 20 is provided with a reading device for reading the QR code (registered trademark) of the AP 10, and the CPU 21 executes a program to control the reading device for the function of the connection information acquisition unit 202. May be realized.

  The connection information storage unit 203 is an example of a “storage unit”, and stores connection information indicating information for connecting to each of the plurality of APs 10 for connecting to the APs. In this example, the connection information storage unit 203 stores the connection information of the AP 10-a acquired by the connection information acquisition unit 202 and the connection information of the AP 10-b.

  The communication control unit 204 executes control of connection information and processing regarding DPP. Here, the communication control unit 204 is an example of the “communication control unit”, and transmits all the connection information stored in the connection information storage unit 203 to the heater 30 based on the device type information acquired from the heater 30. Control for executing any one of the second communication process of transmitting to the heater 30 the connection information of the AP 10 having the highest radio wave intensity based on the communication process of 1 and the installation information acquired from the heater 30 Do.

  In this example, the device type information is information indicating whether the device is a portable terminal (mobile device), and the communication control unit 204 indicates that the device type information indicates that the device is a mobile device. Control to execute 1 communication processing is performed. When the device (STA) is a mobile device, the position of the STA changes even after connection to the AP 10, and there is a high possibility that the connected AP 10 also changes. Therefore, connection of one AP 10 to the STA Passing only information is not enough. Therefore, control is performed to pass all connection information possessed by the smart device 20 to the STA.

  Further, when the communication control unit 204 indicates that the device type information is not a mobile device and indicates that the installation information is installed at a predetermined position (in a case where the installation information is installed), the above-described second communication Control to execute processing. Whether or not the device (STA) is installed at a predetermined position means that the STA is already installed at this point and whether the position is fixed from now on. If the current position has already been installed at a predetermined position, the STA may measure the RSSI (radio wave intensity) of the AP 10 and then perform the post-processing process of selecting the connection destination AP 10 based on that intensity. it can. On the other hand, if it is not installed at a predetermined position and there is a possibility that the position may move in the future, even if the RSSI of the current AP10 is measured, the positional relationship with the AP10 changes when installed in the future. , RSSI also changes, so measurement is not performed.

  Here, how the value of the installation information is determined on the STA side will be described. For example, after the installation of the STA, the value of the installation information included in the information packet transmitted by the STA may be "set by the user pressing the button of the STA or setting that installation is done from some UI of the STA". It can be set to a value indicating "installed". If the STA side does not have a UI function, the installation information included in the information packet transmitted by the STA is "null". In this case, the UI unit 206 of the smart device 20 prompts the user to input whether the target STA (the STA that has transmitted the information packet) has been installed or not installed, as shown in FIG. Display When the UI unit 206 receives an input already installed, the UI unit 206 notifies the communication control unit 204 to that effect. The communication control unit 204 that has received this notification performs control to execute the second communication process described above.

  When the second communication process described above is performed, the communication control unit 204 determines, for each AP 10 acquired from the heater 30 (STA), based on the radio wave intensity information indicating the intensity of the radio wave received from the AP 10 by the heater 30. , Select the AP10 with the highest radio wave strength. The radio wave intensity information is information in which an SSID for identifying the AP 10, an RSSI indicating the radio wave intensity of the AP 10, and a MAC address indicating a unique physical address linked to the AP 10 are associated for each AP 10. In the following description, this radio wave intensity information may be referred to as "RSSI list". FIG. 7 is a diagram showing an example of the RSSI list.

  Hereinafter, an example of a method in which the smart device 20 acquires the RSSI list will be described. In this example, the communication control unit 204 transmits a packet requesting acquisition of the RSSI list (referred to as an “RSSI list request packet” in the following description) to the heater 30 as the communication partner. The heater 30 receiving the RSSI list request packet transmits a packet for searching the surrounding AP 10 (hereinafter referred to as “AP search packet”), and the AP 10 receiving the AP search packet receives a response packet Is returned to the heater 30. As a result, the heater 30 can detect the APs 10 present around it and also detect the intensity of radio waves received from the APs 10, so that the aforementioned RSSI list can be created. Then, the heater 30 returns the RSSI list to the smart device 20 as a response to the RSSI list request packet. Thereby, the smart device 20 can acquire the RSSI list from the heater 30.

  Here, the functions of the communication control unit 204 described above are realized by the CPU 21 executing a program.

  The description of FIG. 5 is continued. The public key acquisition unit 205 acquires the public key from the heater 30. Here, as described above, the heater 30, which is a DPP compatible device, can communicate with an external device by the public key encryption method. The heater 30 has a private key and a public key to be paired, passes the public key to the smart device 20 as a communication partner, holds the private key so as not to leak to the outside, and performs authentication processing or encryption. Communicate. In this example, the public key acquisition unit 205 acquires a public key by reading predetermined code information (QR code (registered trademark) in this example) provided in the heater 30, and the communication control unit 204 acquires the public key. The authentication process is performed with the heater 30 that has acquired the to establish communication. Here, the function of the public key acquisition unit 205 is realized by the CPU 21 executing a program. For example, the smart device 20 is provided with a reading device for reading the QR code (registered trademark) of the heater 30, and the function of the public key acquisition unit 205 is such that the CPU 21 executes a program to control the reading device It may be realized by

  The UI unit 206 performs control to display various information (a UI screen or the like shown in FIG. 6) while receiving an input from the user. Here, the function of the UI unit 206 is realized by the CPU 21 executing a program to control the display unit 26.

  FIG. 8 is a flowchart showing an operation example of the smart device 20 of the present embodiment. Here, it is assumed that communication between the smart device 20 and any one heater 30 has been established. As shown in FIG. 8, first, the smart device 20 (wireless communication unit 201) receives an information packet from the heater 30 (step S1).

  Next, the communication control unit 204 confirms whether the device type information included in the information packet received in step S1 indicates that the device is a mobile device (step S2). When the result of step S2 is affirmative (step S2: Yes), the communication control unit 204 transmits all the connection information stored in the connection information storage unit 203 to the heater 30 (step S3).

  When the result of step S2 is negative (step S2: No), the communication control unit 204 confirms whether or not the information packet received in step S1 includes the installation information (step S4). When the result of step S4 is negative (step S4: No), the communication control unit 204 requests the UI unit 206 to display the above-mentioned UI screen (for example, the UI screen shown in FIG. 6). The UI unit 206 having received this request displays the above-mentioned UI screen, and receives an input from the user (step S5). And when the input of installation completed is received (step S6: Yes), a process transfers to below-mentioned step S8.

  When the result of the above-mentioned step S4 is affirmation (step S4: Yes), the communication control part 204 confirms whether the installation information included in the information packet shows installation completed (step S7). When the result of step S7 is affirmative (step S7: Yes), the process proceeds to step S8. That is, the process proceeds to step S8 only when the device type information indicates that the device is not a smart device and the installation information indicates that the device information is installed at a predetermined position.

  In step S8, the communication control unit 204 performs control to transmit the above-mentioned RSSI list request packet to the heater 30 which is the communication partner, and acquires the RSSI list as a response. Then, the communication control unit 204 refers to the RSSI list to select the AP 10 having the highest radio wave strength (step S9). Then, the communication control unit 204 performs control to transmit the connection information of the AP 10 selected in step S9 to the heater 30 (step S10).

  FIG. 9 is a view showing an example of the function of the heater 30. As shown in FIG. In this example, although one heater 30 is described as an example, the same applies to the other heaters 30. As shown in FIG. 9, the heater 30 has a wireless communication unit 301, a communication control unit 302, and a UI unit 303. The wireless communication unit 301 performs Wi-Fi connection processing and wireless communication. The communication control unit 304 executes control of connection information and processing regarding DPP. The UI unit 303 performs control to display various types of information as well as accepting input from the user.

  FIG. 10 shows an operation when the smart device 20 performs the above-mentioned second communication process to connect the heater 30 to the AP 10 when communication between the smart device 20 and one heater 30 is established. It is a sequence diagram which shows an example of a procedure.

  First, the wireless communication unit 301 of the heater 30 transmits the aforementioned information packet to the smart device 20 (step S101). The wireless communication unit 201 of the smart device 20 passes the information packet received from the heater 30 to the communication control unit 204 (step S102). The communication control unit 204 confirms whether the information packet includes the installation information (step S103). Hereinafter, the case where the result of step S103 is negative will be described. In this case, the communication control unit 204 requests the UI unit 206 to display the aforementioned UI screen (step S104). The UI unit 206 having received this request displays a UI screen, and receives an input from the user (step S105). When the UI unit 206 receives an input already installed, the UI unit 206 notifies the communication control unit 204 to that effect (step S106).

  If the result of the above-described step S103 is affirmative, or if the notification of the above-mentioned step S106 is received, the communication control unit 204 performs control to execute the above-mentioned second communication process. Specifically, it is as follows. First, the communication control unit 204 requests the wireless communication unit 201 to transmit the aforementioned RSSI list request packet (step S107). The wireless communication unit 201 having received this request transmits the RSSI list request packet to the heater 30 (step S108).

  The wireless communication unit 301 of the heater 30 passes the RSSI list request packet received from the smart device 20 to the communication control unit 302 (step S109). Next, the communication control unit 302 requests the wireless communication unit 301 to transmit the above-described AP search packet (step S110). Upon receiving the request, the wireless communication unit 301 transmits an AP search packet (step S111). Then, the result (a response packet to the AP search packet, etc.) is notified to the communication control unit 302 (step S112). The communication control unit 302 creates an RSSI list based on the result (step S113). Then, the communication control unit 302 requests the wireless communication unit 301 to transmit the RSSI list (step S114), and the wireless communication unit 301 having received the request transmits the RSSI list as a response to the RSSI list request packet. It transmits to the smart device 20 (step S115).

  The wireless communication unit 201 of the smart device 20 passes the RSSI list received from the heater 30 to the communication control unit 204 (step S116). The communication control unit 204 refers to the RSSI list to select the AP 10 having the highest radio wave strength (step S117). Then, the communication control unit 204 requests the wireless communication unit 201 to transmit the connection information of the AP 10 selected in step S117 (step S118). The wireless communication unit 201 having received this request transmits the connection information of the AP 10 selected in step S117 to the heater 30 (step S119).

  The wireless communication unit 301 of the heater 30 passes the connection information received from the smart device 20 to the communication control unit 302 (step S120). Then, the communication control unit 302 requests the wireless communication unit 301 to connect to the AP 10 using the connection information (step S121). The wireless communication unit 301 having received this request performs processing for connecting to the AP 10 using the connection information (step S122).

  As described above, the smart device 20 according to the present embodiment obtains connection information of each of the plurality of APs 10 in advance, and from the heater 30 with which communication has been established, device type information indicating the type of the device and the device Acquires installation information indicating whether or not is installed at a predetermined position. Then, when the acquired device type information indicates that the acquired device type information is a mobile device, the smart device 20 executes a first communication process of transmitting connection information of all the APs 10 in hand to the heater 30, and acquires the first communication process. If the device type information indicates that the device type information is not a mobile device and the acquired installation information indicates that the device is installed, a second communication process is performed to transmit connection information of the AP 10 having the highest radio wave intensity to the heater 30. Thereby, in the case where there are a plurality of APs 10, the process of connecting the device (in this example, the heater 30) to the APs 10 can be efficiently performed.

  As mentioned above, although embodiment concerning this invention was described, this invention is not limited to the above-mentioned embodiment as it is, At an execution phase, a component is changed and actualized in the range which does not deviate from the summary. In addition, various inventions can be formed by appropriate combinations of a plurality of components disclosed in the above-described embodiments. For example, some components may be deleted from all the components shown in the above-described embodiment.

  Further, the program executed by the communication system 1 of the embodiment described above is a file of an installable format or an executable format, and is a CD-ROM, a flexible disk (FD), a CD-R, a DVD (Digital Versatile Disk), It may be configured to be recorded and provided in a computer readable recording medium such as USB (Universal Serial Bus) or may be configured to be provided or distributed via a network such as the Internet. In addition, various programs may be configured to be provided by being incorporated in a ROM or the like in advance.

1 Communication system 10 AP
Reference Signs List 20 smart device 30 heater 201 wireless communication unit 202 connection information acquisition unit 203 connection information storage unit 204 communication control unit 205 public key acquisition unit 206 UI unit 301 wireless communication unit 302 communication control unit 303 UI unit

Wi-Fi Device Provisioning Protocol (DPP) Technical Specification Version 0.0.16

Claims (9)

A mobile terminal that connects the device to the access point,
Storage means for storing connection information indicating information for connecting to each of the plurality of access points;
Communication means for acquiring, from the device, device type information indicating the type of the device, and installation information indicating whether the device is installed at a predetermined position;
First communication processing for transmitting all the connection information stored in the storage unit to the device based on the device type information, and the access point of the access point having the highest radio wave intensity based on the installation information Communication control means for performing control to execute any one of second communication processes for transmitting connection information to the device;
Mobile terminal. The device type information is information indicating whether the device is a portable terminal,
The communication control means
When the device type information indicates that the device is a portable terminal, control to execute the first communication process is performed.
The portable terminal according to claim 1. The communication control means
When the device type information indicates that the device is not a portable terminal, and the installation information indicates that the device is installed at a predetermined position, control to execute the second communication process is performed. ,
The portable terminal according to claim 2. The communication control means
The access point having the highest radio wave strength is selected based on radio wave strength information indicating the radio wave strength received by the device from the access point, for each of the access points acquired from the device.
The portable terminal according to any one of claims 1 to 3. It further comprises connection information acquisition means for acquiring the connection information from the access point,
The portable terminal according to any one of claims 1 to 4. The connection information acquisition unit
The connection information is acquired by reading predetermined code information provided in the access point.
The portable terminal according to claim 5. A communication system comprising: a device; an access point; and a portable terminal for connecting the device to the access point,
Storage means for storing connection information indicating information for connecting to each of the plurality of access points;
Communication means for acquiring, from the device, device type information indicating the type of the device, and installation information indicating whether the device is installed at a predetermined position;
First communication processing for transmitting all the connection information stored in the storage unit to the device based on the device type information, and the access point of the access point having the highest radio wave intensity based on the installation information Communication control means for performing control to execute any one of second communication processes for transmitting connection information to the device;
Communications system. A communication method by a portable terminal for connecting a device to an access point,
A communication step of acquiring, from the device, device type information indicating the type of the device, and installation information indicating whether the device is installed at a predetermined position;
First, transmitting all the connection information stored in the storage unit storing connection information indicating information for connecting to the access point for each of the plurality of access points based on the device type information to the device Control step of performing any one of the second communication process of transmitting to the device the connection information of the access point having the highest radio wave strength based on the installation information and And have,
Communication method. The portable terminal that connects the device to the access point
A communication step of acquiring, from the device, device type information indicating the type of the device, and installation information indicating whether the device is installed at a predetermined position;
First, transmitting all the connection information stored in the storage unit storing connection information indicating information for connecting to the access point for each of the plurality of access points based on the device type information to the device Control step of performing any one of the second communication process of transmitting to the device the connection information of the access point having the highest radio wave strength based on the installation information and And programs to run.