WO2020217909A1

WO2020217909A1 - Communication device, communication control system, and communication control method and program

Info

Publication number: WO2020217909A1
Application number: PCT/JP2020/015085
Authority: WO
Inventors: 田中　実; 和人大和田; 克弘小野塚; 中嶋　健一
Original assignee: フェリカネットワークス株式会社
Priority date: 2019-04-23
Filing date: 2020-04-01
Publication date: 2020-10-29
Also published as: JPWO2020217909A1

Abstract

Provided are a communication device and method in which optimal communication parameters are set in accordance with the type of a communication partner device and then communication is carried out. A captured image from a camera is analyzed, the type of the communication partner device is identified from the captured image, an optimal communication mode is determined on the basis of the result of identifying the identified communication partner device, and near-field communication with the communication partner device is carried out in the determined communication mode. The communication device acquires the optimal parameters corresponding with the type of the communication partner device from a storage unit or an external server. For example, communication parameters such as a Q value for a communication signal, load modulation (amplitude/phase), an input magnetic field, a response threshold value, a resonant frequency, a reception filter characteristic, an optimal control setting for active load modulation (ALM), and an optimal strength for an output signal, etc., are acquired and applied to a communication process which is carried out.

Description

Communication devices, communication control systems, and communication control methods, and programs

The present disclosure relates to communication devices, communication control systems, communication control methods, and programs. More specifically, the present invention relates to a communication device, a communication control system, a communication control method, and a program that reduce communication errors in short-range wireless communication between devices and enable more reliable communication.

In recent years, the use of mobile terminals such as smartphones (smartphones) having an IC card function has been expanding.
By using a mobile terminal (communication device) having an IC card function, it is possible to easily make payments for shopping, eating and drinking, etc., or getting on a train or a bus without carrying cash.

The mobile terminal (communication device) can be brought close to the reader / writer (R / W) to execute short-range wireless communication to perform authentication, payment processing, and the like.
As conventional techniques disclosed for a system using short-range wireless communication, Patent Document 1 (Japanese Patent Laid-Open No. 2018-005711), Patent Document 2 (Japanese Patent Laid-Open No. 2018-001666), and Patent Document 3 (Patent No. 6291752). Issue) etc.

The mobile terminal and the reader / writer perform communication by so-called non-contact type short-range wireless communication. As a standard for this non-contact type short-range wireless communication, for example, there is NFC (Near Field Communication) and the like.
Communication devices such as mobile terminals and reader / writers are designed to perform communication in accordance with specific communication standards such as NFC.

However, each device has a difference in the position of the antenna, the spread of electromagnetic waves, the wireless communication strength, the degree of modulation, and the like. That is, each device has slightly different communication characteristics. Communication between each device may become difficult due to this difference in communication characteristics, and a solution to this problem is required.
In addition, when multiple reader / writers are placed close to each other, interference of communication signals output from the plurality of reader / writers occurs, and even if a mobile terminal such as a smartphone (smartphone) is brought close to each other, communication cannot be performed well. There is also.

JP-A-2018-005711 JP-A-2018-0016666 Japanese Patent No. 6291752

The present disclosure has been made in view of the above-mentioned problems, for example, and is a communication device, a communication control system, and a communication control system that reduce communication errors in short-range wireless communication between communication devices and enable more reliable communication. The purpose is to provide a communication control method and a program.

The first aspect of the disclosure is
With a camera that takes images
The captured image of the camera is analyzed, the communication partner device included in the captured image is identified, and the photographed image is identified.
It is in a communication device having a control unit that determines an optimum communication mode based on the identification result and executes communication processing with the communication partner device in the determined communication mode.

In addition, the second aspect of the disclosure is
Communication equipment and
A communication partner device that executes short-range wireless communication with the communication device,
A communication control system having a communication management server capable of communicating with the communication device.
The communication device is
With a camera that takes images
It has a control unit that transmits the captured image of the camera to the communication management server.
The communication management server
The image received from the communication device is analyzed, the communication partner device included in the received image is identified, and the communication partner device is identified.
Based on the identification result, the optimum communication parameter for the communication partner device is selected and transmitted to the communication device.
The control unit of the communication device
It is in a communication control system that executes communication with the communication partner device by applying communication parameters received from the communication management server.

Further, the third aspect of the present disclosure is
It is a communication control method executed in a communication device.
The control unit of the communication device
Analyze the captured image of the camera, identify the communication partner device included in the captured image, and
The present invention is a communication control method in which an optimum communication mode is determined based on an identification result, and communication processing with the communication partner device is executed in the determined communication mode.

Further, the fourth aspect of the present disclosure is
Communication equipment and
A communication partner device that executes short-range wireless communication with the communication device,
It is a communication control method executed in a communication control system having a communication management server capable of communicating with the communication device.
The communication device
The captured image of the camera is transmitted to the communication management server,
The communication management server
The image received from the communication device is analyzed, the communication partner device included in the received image is identified, and the communication partner device is identified.
Based on the identification result, the optimum communication parameter for the communication partner device is selected and transmitted to the communication device.
The communication device
The present invention is a communication control method for executing communication with the communication partner device by applying the communication parameters received from the communication management server.

Further, the fifth aspect of the present disclosure is
A program that executes communication control processing in a communication device.
In the control unit of the communication device,
Analyze the captured image of the camera, identify the communication partner device included in the captured image, and
It is a program that determines an optimum communication mode based on an identification result and executes a communication process with the communication partner device in the determined communication mode.

The program of the present disclosure is, for example, a program that can be provided by a storage medium or a communication medium that is provided in a computer-readable format to an information processing device or a computer system that can execute various program codes. By providing such a program in a computer-readable format, processing according to the program can be realized on an information processing device or a computer system.

Still other objectives, features and advantages of the present disclosure will be clarified by more detailed description based on the examples of the present disclosure and the accompanying drawings described below. In the present specification, the system is a logical set configuration of a plurality of devices, and the devices having each configuration are not limited to those in the same housing.

According to the configuration of one embodiment of the present disclosure, a communication device and communication optimization for performing communication by setting optimum communication parameters according to the type of the communication partner device are realized.
Specifically, for example, the captured image of the camera is analyzed, the type of the communication partner device is identified from the captured image, and the optimum communication mode is determined based on the identification result of the identified communication partner device, and the determined communication is performed. Short-range wireless communication with the communication partner device is executed in the mode. The communication device acquires the optimum communication parameters corresponding to the type of the communication partner device from the storage unit or an external server. For example, communication parameters such as Q value of communication signal, load modulation (amplitude / phase), input magnetic field, reply threshold, resonance frequency, reception filter characteristics, optimum control setting of active load modulation (ALM), optimum strength of output signal, etc. Is acquired and the applied communication process is executed.
With this configuration, it is possible to realize a communication device and communication optimization in which optimum communication parameters are set according to the type of communication partner device to perform communication.
It should be noted that the effects described in the present specification are merely exemplary and not limited, and may have additional effects.

It is a figure explaining an example of the communication control system which executes the process of this disclosure. It is a figure explaining the configuration example of a mobile terminal. It is a figure explaining the specific example of the process executed by the communication apparatus of this disclosure. It is a figure explaining the specific example of the process executed by the communication apparatus of this disclosure. It is a figure explaining the specific example of the process executed by the communication apparatus of this disclosure. It is a figure explaining the specific example of the process executed by the communication apparatus of this disclosure. It is a figure explaining the configuration example of the mobile terminal such as a smartphone which is an example of the communication device of this disclosure. It is a figure explaining an example of the data stored in the storage part of a mobile terminal, and the data stored in the storage part of a communication management server. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the specific communication control sequence executed by the communication apparatus of this disclosure. It is a figure explaining the hardware configuration example of a communication device, a reader / writer, and a server.

Hereinafter, the details of the communication device, the communication control system, the communication control method, and the program of the present disclosure will be described with reference to the drawings. The explanation will be given according to the following items.
1. 1. Outline of processing and configuration of the present disclosure 2. Specific examples of processing executed by the communication device of the present disclosure. Regarding the configuration example of the communication device of the present disclosure 4. Specific communication control sequence executed by the communication device of the present disclosure 4-1 (Processing example 1) Processing sequence when a mobile terminal detects one reader / writer and succeeds in identifying the type of the detected reader / writer. 4-2 (Processing Example 2) Processing sequence when a mobile terminal detects a plurality of reader / writers, then approaches one reader / writer, and succeeds in identifying the type of the reader / writer 4-3 (Processing example) 3) Processing sequence when a mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, receives communication parameters from the communication management server, and uses them 4-4 (Processing example 4) When the mobile terminal detects one reader / writer and the transmission signal from the detected reader / writer is successfully received, but the transmission signal from the mobile terminal is not accepted by the reader / writer, the communication parameter is set from the communication management server. Processing sequence when receiving and using 4-5 (Processing example 5) The mobile terminal detects one reader / writer, fails to identify the type of detected reader / writer, and receives communication parameters from the communication management server. Processing sequence when it cannot be performed 4-6 (Processing example 6) Processing sequence when the mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, and cannot connect to the communication management server 4 -7 (Processing example 7) The mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, first receives the communication parameter identifier from the communication management server, and then receives the communication parameter. Processing sequence when using the server 5. About hardware configuration examples of communication devices, reader / writers, and servers 6. Summary of the structure of this disclosure

[1. Outline of processing and configuration of this disclosure]
First, an outline of the processing and configuration of the present disclosure will be described.
The present disclosure ensures that a communication device that executes short-range wireless communication can execute communication with a communication partner device.
For example, when a mobile terminal such as a smartphone (smartphone) is brought close to a reader / writer (R / W), short-range wireless communication between the devices is executed, and authentication, payment processing, and the like are performed.
The mobile terminal and the reader / writer perform communication according to a wireless communication standard such as NFC (Near Field Communication), for example.

NFC is a communication standard that executes communication at a frequency of 13.56 MHz, and two communication devices that execute communication, such as a smartphone and a reader / writer, detect a communication signal with a frequency of 13.56 MHz and execute communication. To do.

However, in reality, there are differences in the antenna position of each communication device, the spread of electromagnetic waves, the wireless communication strength, the degree of modulation, etc., and problems such as communication failure between each device occur due to these differences in communication characteristics. There is.

In the process of the present disclosure, an image of a communication partner device, for example, a reader / writer (R / W) is captured by using a camera provided in a mobile terminal such as a smartphone (smartphone), and the communication partner device is based on the captured image. Identify the type and number.
For example, from the image of the reader / writer (R / W), the feature information such as the shape, color, mark, arrangement of the display unit, logo, etc. of the communication partner device is analyzed to determine the type and number of the reader / writer (R / W). ..

Further, the optimum communication control mode information registered in the storage unit in association with the type and number of the determined reader / writer (R / W), for example, the communication parameter is acquired, and the acquired optimum communication control mode is followed. Execute communication processing.

For example, the storage unit stores the optimum communication parameters corresponding to the type of reader / writer (R / W). The mobile terminal acquires this communication parameter, sets it as a communication parameter of its own device, and executes communication processing. That is, the communication process in which the optimum communication parameters are set according to the communication characteristics of the remote device is executed. Further, various communication control processes such as communication stop, output restriction, and communication mode change are executed according to the type and number of reader / writers (R / W).
Such communication control makes it possible to reliably communicate with various communication partners having different communication characteristics.

The communication parameters to be controlled are, for example, the Q value of the communication signal, load modulation (amplitude / phase), input magnetic field, reply threshold, resonance frequency, reception filter characteristics, and the like.
Optimal communication parameters according to the type of communication partner device are stored in advance in a mobile terminal such as a smartphone (smartphone). Or get it from an external server.

In this way, the communication partner device is identified by the image taken by the camera, the optimum communication parameter corresponding to the identified communication partner device is acquired, and communication is executed using the acquired communication parameter, so that the characteristics are different. It is possible to perform reliable communication without causing an error when communicating with various communication partner devices.

For example, if it is determined that the reader / writer has a characteristic of performing communication with a higher resonance frequency based on an image of a reader / writer which is a communication partner device, the smartphone should perform communication according to this characteristic. Change the communication settings.

Further, a mobile terminal such as a smartphone determines that interference or interference occurs when a plurality of reader / writers are photographed in an image captured by a camera, and temporarily stops communication, limits output, or has an active load. Controls such as stop (OFF) processing of modulation (ALM: Active Load Modulation).

After that, when the user brings the smartphone closer to one reader / writer and determines that it is sufficiently close to one reader / writer, such as when only one reader / writer is photographed in the image captured by the camera. Changes the reception sensitivity of the smartphone to a state in which communication with one reader / writer can be executed by a process such as turning on active load modulation (ALM).
With such control, it is possible to prevent communication errors and reliably execute communication with one reader / writer without errors.

FIG. 1 is a diagram showing an example of a communication control system that executes the process of the present disclosure.
FIG. 1 shows a mobile terminal 10 which is an example of the communication device of the present disclosure, and a reader / writer 20 as a communication partner device that executes short-range wireless communication with the mobile terminal 10. Short-range wireless communication according to a wireless communication standard such as NFC is executed between the mobile terminal 10 and the reader / writer 20.
Note that FIG. 1 illustrates a state in which an image of the reader / writer 20 taken by the camera of the mobile terminal 10 is displayed on the display unit of the mobile terminal 10.

The mobile terminal 10 and the reader / writer 20 are set to be able to communicate with an external server via Wi-Fi, the Internet, or the like.
There are a large number of external servers that execute various processes, and FIG. 1 shows a payment processing server 40 and a communication management server 50 as a part thereof.

The payment processing server 40 is a server that executes payment processing based on communication between the mobile terminal 10 and the reader / writer 20.
Further, the communication management server 50 is data for communication control in short-range wireless communication executed between the mobile terminal 10 and the reader / writer 20, specifically, optimum communication parameters corresponding to the type of the reader / writer 20. Is a server that provides the mobile terminal 10 and the like.
A specific processing example will be described later.

FIG. 2 is a diagram showing a configuration example of the mobile terminal 10.
FIG. 2 shows the front surface and the back surface of the mobile terminal 10 as an external configuration.
A display unit 11 is provided on the surface of the mobile terminal 10. On the back surface, a short-range wireless communication unit 12 as a communication unit including an antenna for performing short-range wireless communication and a camera 13 are configured.

The short-range wireless communication unit 12 is a communication unit that performs short-range wireless communication with the reader / writer 20. For example, it is a communication unit that executes short-range wireless communication according to a standard such as NFC (Near Field Communication).
The communicable range of short-range wireless communication such as NFC is about several cm.

A camera 13 is further configured on the back surface of the mobile terminal 10, and an image taken through the camera 13 is displayed on the display unit 11 on the front surface of the mobile terminal 10.

The reader / writer 20 outputs a polling signal, which is a signal for detecting a mobile terminal or the like as a communication partner, at any time. When the mobile terminal 10 of the present disclosure detects an RF signal from the reader / writer 20, for example, a carrier wave of 13.56 MHz, the mobile terminal 10 activates the camera function and starts image capture. The camera activation process may be performed by the user. That is, the user may perform the camera activation process regardless of the presence or absence of RF signal detection, capture an image of the reader / writer, and start the reader / writer type discrimination process based on the captured image.

The control unit of the mobile terminal 10 determines the type and number of reader / writers, which are communication partner devices included in the captured image.
Furthermore, as a result of determining the type and number, communication control is executed according to the type and number of reader / writers analyzed. For example, the optimum communication parameters are set, and communication with the communication partner, that is, the reader / writer photographed by the camera 13 is executed.
This specific process will be described later.

[2. Specific examples of processing executed by the communication device of the present disclosure]
Next, a specific example of the process executed by the communication device of the present disclosure will be described with reference to FIGS. 3 and below.
In the following examples, a processing example using a smartphone (smartphone) which is a mobile terminal will be described as an example of the communication device of the present disclosure.
However, the communication device of the present disclosure is not limited to a smartphone, and includes various devices such as a tablet terminal and a PC.

First, with reference to FIGS. 3 to 6, an example of an image taken by the camera 13 of the mobile terminal 10 and displayed on the display unit 11 when the mobile terminal 10 is brought close to the reader / writer 20, and according to each state. The outline of the process executed by the control unit of the mobile terminal 10 will be described.
The detailed sequence of each of these processes will be described later.

FIG. 3 is an example in which one mobile terminal 10 is brought close to a place where two reader / writers A and 20a and reader / writers B and 20b are arranged close to each other. In this case, the mobile terminal 10 first receives the RF signal (polling signal) from any of the two reader / writers at the short-range wireless communication unit 12 of the mobile terminal 10. The mobile terminal 10 activates the camera 13 in response to the reception of the RF signal. The camera activation process may be performed by the user.

When the camera 13 is activated, the camera 13 of the mobile terminal 10 photographs two reader / writers A and B in front of the mobile terminal 10, and displays the captured images on the display unit 11.

The control unit of the mobile terminal 10 detects the presence of a plurality of different types of reader / writers in the image captured by the camera 13.
The control unit of the mobile terminal 10 executes a communication control process for changing the communication mode of the mobile terminal 10 according to the detection result. For example, it executes various communication control processes such as changing communication parameter settings, stopping communication, limiting output, and changing communication mode.

A "communication control mode when a plurality of different types of reader / writers are detected" is defined in advance in the storage unit of the mobile terminal 10, and the control unit of the mobile terminal 10 executes communication control processing in accordance with this regulation. To do.
Specifically, for example, processing such as stopping (OFF) of active load modulation (ALM: Active Load Modulation) and stopping the response to polling is performed.

FIG. 4 shows an example in which one mobile terminal 10 is brought close to a place where two reader / writers A and 20a and reader / writers B and 20b are arranged close to each other as in FIG. This is an example in which the terminal 10 is moved near the reader / writer A, 20a.

In this case, the captured image of the mobile terminal 10 is an image of only the reader / writers A and 20a.
The control unit of the mobile terminal 10 detects that one reader / writer A, 20a is present in the image captured by the camera 13.
The control unit of the mobile terminal 10 executes a communication control process according to the detection result.

"Optimal communication control mode information such as optimum communication parameters adapted to various types of reader / writers" is predetermined in the storage unit of the mobile terminal 10, and the control unit of the mobile terminal 10 complies with this regulation. Execute communication control processing.
Specifically, for example, processing such as execution (ON) of active load modulation (ALM: Active Load Modulation), output execution of RF (Radio Frequency) signal (response execution to polling), and the like are performed.

FIG. 5 shows an example in which one mobile terminal 10 is brought close to a place where two reader / writers A1, 20a1 and reader / writers A2, 20a2 of the same type are arranged close to each other.

In this case, the captured image of the mobile terminal 10 is an image of two reader / writers A1 and A2 of the same type.
The control unit of the mobile terminal 10 detects that two reader / writers A1 and A2 of the same type are present in the image captured by the camera 13.
The control unit of the mobile terminal 10 executes a communication control process according to the detection result.

Also in this case, communication control is executed according to the information stored in the storage unit of the mobile terminal 10.
Specifically, for example, processing such as stopping (OFF) of active load modulation (ALM: Active Load Modulation) and stopping the response to polling is performed.

FIG. 6 shows an example in which one mobile terminal 10 is brought close to a place where two reader / writer A1, 20a1 and reader / writer A2, 20a2 of the same type are arranged close to each other, as in FIG. is there. FIG. 6 is an example in which the mobile terminal 10 is further brought closer to the reader / writer A1, 20a1 side.

In this case, the captured image of the mobile terminal 10 is an image of one reader / writer A1.
The control unit of the mobile terminal 10 detects that one reader / writer A1 of the same type is present in the image captured by the camera 13.
The control unit of the mobile terminal 10 executes a communication control process according to the detection result.
Specifically, for example, processing such as execution (ON) of active load modulation (ALM) and execution of a response to polling is performed.

In this way, the communication device of the present disclosure, for example, the mobile terminal 10, executes communication control according to the image of the communication partner device, that is, the reader / writer, included in the image taken by the camera of the mobile terminal 10.
The specific sequence of these processes will be described later.

[3. About the configuration example of the communication device of the present disclosure]
Next, a configuration example of the communication device of the present disclosure will be described.
FIG. 7 is a block diagram showing a configuration example of a mobile terminal 10 such as a smartphone, which is an example of the communication device of the present disclosure.

As shown in FIG. 7, a mobile terminal 10 such as a smartphone has a device control unit 101, a camera 102, a communication control unit 103, an input unit 104, an output unit 105, a storage unit 106, and a communication unit 120. The communication unit 120 includes a short-range wireless communication unit 121 and other communication units 122.

The short-range wireless communication unit 121 executes communication according to, for example, an NFC standard. For example, short-range wireless communication with the reader / writer 20 is executed.
The other communication unit 122 executes, for example, Wi-Fi communication, Internet communication, and the like, and executes communication with an external device such as the management server 50.

The device control unit 101 executes overall control of the device, that is, the mobile terminal 10. For example, processing such as activation processing of the camera 102, analysis processing of captured images, determination of communication mode, change of communication parameters, and determination is executed.

The camera 102 executes an image capturing process. For example, an image of a reader / writer that is a short-range wireless communication partner is taken.
When the device control unit 101 detects the reception of the polling signal of the reader / writer by the short-range wireless communication unit 121 of the communication unit 120, the device control unit 101 activates the camera 102 to start image shooting.
However, it is also possible to activate the camera 102 by an operation by the user via the input unit 104.

The communication control unit 103 controls the communication processing of the short-range wireless communication unit 121 of the communication unit 120 and other communication units 122.
For example, the communication control of the short-range wireless communication executed by the short-range wireless communication unit 121 is executed.
The device control unit 101 executes communication control or the like for executing communication processing in which communication parameters determined based on the image captured by the camera are set.

The input unit 104 is a user operation unit such as a switch or a button. The touch panel of the display unit also functions as an input unit. The camera activation process can also be executed by user input via the input unit 104.
The output unit 105 is composed of a display unit, an audio output unit, and the like. The image captured by the camera is displayed on the display unit.
The storage unit 106 records a control program executed by the device control unit 101 and the communication control unit 103, an optimum communication parameter according to a communication partner device, for example, a reader / writer type, and the like.

The device control unit 101 of the mobile terminal 10 determines the optimum communication mode based on the captured image of the camera 102 according to the number and type of communication partner devices (reader / writer, etc.) included in the captured image. Communication control is executed according to the determination mode.

The device control unit 101 analyzes the communication partner status such as the number and type of communication partner devices (reader / writer, etc.) included in the captured image, and stores the optimum communication setting information according to the analyzed communication partner status 106. Get from.
The storage unit 106 records information on the optimum communication mode (communication parameters, etc.) according to various communication partner situations (number and type).

Note that there is a limit to the recorded data of the storage unit 106 of the mobile terminal 10, and it is not possible to store the optimum communication mode (communication parameters, etc.) information according to all communication partner situations (number and type). Optimal communication mode (communication parameters, etc.) information according to the communication partner status (number and type) that is not stored in the storage unit 106 can be acquired from the communication management server 50.

An example of the data stored in the storage unit 106 of the mobile terminal 10 and the data stored in the storage unit of the communication management server 50 will be described with reference to FIG.

First, the data stored in the storage unit 106 of the mobile terminal 10 will be described.
As shown in FIG. 8, the storage unit 106 of the mobile terminal 10 stores the following three types of data.
(A) Reader / writer (R / W) type identification parameter & reader / writer (R / W) type-corresponding communication parameter (b) Communication parameter difference data (difference data between RF0 communication parameters and RF1 to RF0)
(C) Communication parameters supported when multiple reader / writers (R / W) are detected

"(A) Reader / Writer (R / W) Type Identification Parameter & Reader / Writer (R / W) Type Corresponding Communication Parameter"
This data includes reader / writer (R / W) type identification parameters (a1, a2, a3 ...) for identifying the reader / writer (R / W) type (A1, A2, A3 ...). , A data area that stores an optimum set of communication parameters (RF1, RF2, RF3 ...) Corresponding to each of various reader / writer types (A1, A2, A3 ...).

The reader / writer (R / W) type identification parameters (a1, a2, a3 ...) Are identification parameters according to the reader / writer type (A1, A2, A3 ...). Each of the reader / writer (R / W) type identification parameters (a1, a2, a3 ...) includes, for example, the color and shape of the reader / writer, the arrangement of the display unit, the arrangement of switches, buttons, etc. Includes feature information that can be used to identify the type of R / W).

The device control unit 101 of the mobile terminal 10 has an image of the reader / writer (R / W) included in the captured image of the camera 102 and parameters (a1, a2, a3 ...) For identifying the type of the reader / writer (R / W). ) Are compared to determine which of the parameters (a1, a2, a3 ...) Matching the characteristics of the captured image.

When the parameter that most closely matches the characteristics of the captured image is (a1), it is determined that the type of reader / writer (R / W) of the captured image is (A1).
Further, the optimum communication parameter for the reader / writer (R / W) type (A1) is (RF2), and this data corresponds to the identification parameter (a1) for the reader / writer (R / W) type (A1). It is attached and recorded.
The device control unit 101 of the mobile terminal 10 sets the communication parameters according to the communication parameters (RF2), and executes the communication process with the reader / writer (R / W) (type = (A1)) of the captured image.
This communication control enables communication with the optimum communication setting for the reader / writer (R / W) type = (A1).

Each of RF1, RF2, RF3 ... Is a set data of optimum communication parameters corresponding to each type of reader / writer A1, A2, A3 ...
For each of RF1, RF2, RF3 ..., A set of optimum communication parameters corresponding to each reader / writer type A1, A2, A3 ..., For example, Q value of communication signal, load modulation (amplitude / phase). ), Input magnetic field, reply threshold, resonance frequency, reception filter characteristics, and other optimum values, active load modulation (ALM) optimum control settings, output signal intensity optimum values, and various other communication mode control values (parameters) are included. ..

"(B) Communication parameter difference data (difference data between RF0 communication parameters and RF1 to RF0)"
This data is the difference data (ΔRF1, ΔRF2, ΔRF3 ...) between each parameter setting value of the default communication parameter (RF0) and the default parameter (RF0) of each communication parameter (RF1, RF2, RF3 ...). ) Is stored in the data area.

When the type of communication partner is not specified, the mobile terminal 10 sets the default communication parameter (RF0) as an initial setting and executes communication. After that, when the type of communication partner (A1, A2, A3 ...) Is specified, it is changed to the optimum communication parameter (RF1, etc.) according to the type of communication partner (A1, A2, A3 ...). To communicate.

When changing the communication mode at this time, it is necessary to change the initial default communication parameter (RF0) to RF1 or the like. In this change process
"(B) Communication parameter difference data (difference data between RF0 communication parameters and RF1 to RF0 (ΔRF1, ΔRF2, ΔRF3 ...))"
By acquiring this difference data (ΔRF1, ΔRF2, ΔRF3 ...) And changing the difference with respect to the default communication parameter, it is possible to immediately shift to the communication processing of different communication parameters (RF1, RF2, etc.). Can be done.

"(C) Communication parameters for multiple reader / writer (R / W) detection"
This data is a data area in which communication parameters set when the mobile terminal 10 detects a plurality of reader / writers (R / W) are stored.
For example, α is a setting parameter when detecting a plurality of reader / writers (R / W) of the same type, and β is a setting parameter when detecting a plurality of reader / writers (R / W) of different types.

Specifically, these are communication control processes that control, for example, temporarily stop communication, limit communication output, or stop (OFF) or limit active load modulation (ALM). Corresponds to.

Next, the data stored in the management server 50 will be described.
As shown in FIG. 8, the management server 50 stores the following three types of data.
(S1) Reader / writer (R / W) type identification parameter (s2) Communication parameter (s3) Reader / writer (R / W) type-compatible communication parameter for each mobile terminal type

"(S1) Reader / Writer (R / W) Type Identification Parameter"
This data is data for identifying the type of reader / writer (A1, A2, A3 ...) Based on the captured image of the mobile terminal 10.

This data (s1) is the configuration data of "(a) reader / writer (R / W) type identification parameter & reader / writer (R / W) type-corresponding communication parameter" in the data stored in the mobile terminal described above. The data is the same as the reader / writer (R / W) type identification parameters (a1, a2, a3 ...).
That is, it is an identification parameter for identifying the reader / writer (R / W) type (A1, A2, A3 ...).

Each of the reader / writer (R / W) type identification parameters (a1, a2, a3 ...) includes, for example, a leader / writer color, shape, a mark indicating a communication method and its position, a display position, a switch, and the like. It contains feature information that can be used to identify the type of reader / writer (R / W), such as the placement of buttons and the like.

The feature of the image taken by the camera of the mobile terminal 10 is "(a) Reader / writer (R / W) type identification parameter & reader / writer (R / W) type compatible communication parameter" stored in the storage unit of the mobile terminal 10. If none of the reader / writer (R / W) type identification parameters (a1, a2, a3 ...), Which is the configuration data of the mobile terminal, is matched, the mobile terminal 10 transmits the image data taken by the camera to the communication management server 50. Send.

The communication management server 50 sets the image of the reader / writer (R / W) included in the image data received from the mobile terminal 10 and the reader / writer (R / W) type identification parameters (a1, a2, a3 ...). The type of reader / writer (R / W) is determined by comparison.
Further, based on the determined identification result such as the type of reader / writer, the optimum communication parameter for the type of reader / writer is selected and transmitted to the mobile terminal 10.

The mobile terminal 10 applies the communication parameters received from the communication management server 50 to execute communication with the reader / writer.
This communication control enables communication with the optimum communication settings according to the type of reader / writer (R / W).

"(S2) Communication parameters"
This data area is a storage area for a set of various communication parameters.
Each of RF1, RF2, RF3 ... Is a set data of optimum communication parameters corresponding to various reader / writer types.
For each of RF1, RF2, RF3, ..., Optimal communication parameter set, for example, communication signal Q value, load modulation (amplitude / phase), input magnetic field, reply threshold, resonance frequency, reception filter characteristics, etc. Various communication mode control values (parameters) such as an optimum value, an optimum control setting for active load modulation (ALM), and an optimum value for the intensity of an output signal are included.

"(S3) Communication parameters corresponding to reader / writer (R / W) type for each mobile terminal type"
This data area is an area for storing communication parameters corresponding to the reader / writer (R / W) type for each type of mobile terminal.

There are various types of terminals used by users, and the communication characteristics differ depending on the type.
Even if the reader / writer of the communication partner is the same type (A1), if the type of the mobile terminal is different, the communication parameters to be set for each mobile terminal may be different.

The communication management server 50 holds the optimum parameters corresponding to each reader / writer (R / W) in various communication terminal units.
For example, the communication parameter (s3a) corresponding to the mobile terminal A shown in FIG. 8 is an optimum parameter corresponding to each type of reader / writer (A1, A2, A3 ...) When the type of the mobile terminal is (A). (RF2, RF1, RF2 ...) Are stored.

(S3b) The communication parameters corresponding to the mobile terminal B are the optimum parameters (RF1, RF2, ...) Corresponding to the types (A1, A2, A3 ...) Of each reader / writer when the type of the mobile terminal is (B). RF5 ...) is stored.

When the communication management server 50 receives an inquiry for communication parameters and a transmission request from the mobile terminal 10, this data area (R / W) according to the type of the mobile terminal 10 and the type of reader / writer (R / W) to be the communication partner thereof. From s3), an entry matching the mobile terminal type and the reader / writer type is selected, the communication parameters (RF1, RF2, etc.) recorded in the entry are acquired and transmitted to the mobile terminal.

[4. Specific communication control sequence executed by the communication device of the present disclosure]
Next, a specific communication control sequence executed by the communication device of the present disclosure will be described with reference to the sequence diagram shown in FIG.

FIG. 9 The sequence of each of the following processing examples will be described with reference to the sequence diagram below.
(Processing Example 1) Processing sequence when the mobile terminal detects one reader / writer and succeeds in identifying the type of the detected reader / writer (Processing example 2) The mobile terminal detects a plurality of readers / writers, and then Processing sequence when approaching one reader / writer and succeeding in identifying the type of the reader / writer (Processing example 3) The mobile terminal detects one reader / writer and fails to identify the type of the detected reader / writer. However, the processing sequence when the communication parameter is received from the communication management server and used (Processing example 4) The mobile terminal detects one reader / writer, and the transmission signal from the detected reader / writer is successfully received. Processing sequence when receiving and using communication parameters from the communication management server when the transmission signal from the mobile terminal is not accepted by the reader / writer

(Processing Example 5) Processing sequence when a mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, and cannot receive communication parameters from the communication management server (Processing example 6) Mobile terminal Detects one reader / writer, fails to identify the type of detected reader / writer, and cannot connect to the communication management server (Processing example 7) The mobile terminal detects one reader / writer. , The processing sequence when the detection of the detected reader / writer type fails, the communication parameter identifier is first received from the communication management server, and then the communication parameter is received and used.

(4-1 (Processing Example 1) Processing sequence when a mobile terminal detects one reader / writer and succeeds in identifying the type of the detected reader / writer)
First, with reference to the sequence diagram shown in FIG. 9, (processing example 1) a processing sequence when a mobile terminal detects one reader / writer and succeeds in identifying the type of the detected reader / writer will be described.

The sequence shown in FIG. 9 is a communication sequence when the mobile terminal 10 succeeds in communicating with the reader / writer 20 by the communication to which the default communication parameter (RF0) which is the initial setting is applied.
From the left, the sequence diagram of FIG. 9 shows the communication management server 50, the device control unit 101 of the mobile terminal 10, the communication control unit 103 of the mobile terminal 10, and the reader / writer 20.
The process proceeds in chronological order from step S10 to step S21.
The processing of each step will be described below.

(Step S10)
It is assumed that the mobile terminal is set to execute communication (near field communication) processing to which the communication parameter (RF0) is applied as an initial setting (default setting).

(Step S11)
In step S11, the reader / writer 20 continuously transmits a polling signal for confirming the mobile terminal.

However, the polling signal output by the reader / writer 20 is not the optimum communication setting for communication to which the communication parameter (RF0) of the mobile terminal 10 is applied, and if nothing is done, an error will occur between the mobile terminal 10 and the reader / writer 20. No communication is a difficult situation.
However, the mobile terminal 10 is in a state where it can detect at least a part of the polling signal output by the reader / writer 20.

(Step S12)
When the communication control unit 103 of the mobile terminal 10 detects the polling signal output by the reader / writer 20, it notifies the device control unit 101 that the RF signal (polling signal) has been detected in step S12.

(Step S13)
When the device control unit 101 of the mobile terminal 10 inputs the RF signal (polling signal) detection information from the communication control unit 103, in step S13, the device control unit 101 of the mobile terminal 10 activates the camera of the mobile terminal 10 and starts image shooting by the camera.

The user may perform the camera activation process. In this case, the process of step S13 or lower is executed regardless of whether or not the polling signals of steps S11 to S12 are received.

(Step S14)
Next, in step S14, the device control unit 101 of the mobile terminal 10 executes an identification process of the type of reader / writer (R / W) based on the image captured by the camera.

The reader / writer (R / W) type identification process is described in "(a) Reader / Writer (R / W) Type Identification Parameter & Reader / Writer (R / W) Type Corresponding Communication" described above with reference to FIG. Parameters "
Refer to this data and execute.

As described above, the reader / writer (R / W) type identification parameters (a1, a2, a3 ...) Are identification parameters according to the reader / writer type (A1, A2, A3 ...). is there. Each of the reader / writer (R / W) type identification parameters (a1, a2, a3 ...) includes, for example, the color and shape of the reader / writer, the arrangement of the display unit, the arrangement of switches, buttons, etc. Includes feature information that can be used to identify the type of R / W).

The device control unit 101 of the mobile terminal 10 transmits an image of the reader / writer (R / W) included in the image captured by the camera and parameters (a1, a2, a3 ...) For identifying the type of the reader / writer (R / W). By comparison, it is determined which of the parameters (a1, a2, a3 ...) Matching the characteristics of the captured image is.

If the identification process of the reader / writer (R / W) type based on the image captured by the camera is successful in step S14, the process proceeds to step S15.

(Step S15)
Next, in step S15, the device control unit 101 of the mobile terminal 10 acquires the optimum communication parameter (RF1) for the identified type of reader / writer (R / W) from the storage unit 106, and causes the communication control unit 103. Communication to which this parameter (RF1) is applied is started.

As explained earlier with reference to FIG.
"(A) Reader / Writer (R / W) Type Identification Parameter & Reader / Writer (R / W) Type Corresponding Communication Parameter"
In this data, the optimum communication parameters according to the type of reader / writer (R / W) are recorded in association with the identification parameters of the type of reader / writer (R / W).

The device control unit 101 of the mobile terminal 10 acquires this communication parameter and causes the communication control unit 103 to start communication to which this parameter (RF1) is applied.

(Steps S16 to S17)
The communication control unit 103 of the mobile terminal 10 executes communication processing to which the communication parameter (RF1) notified from the device control unit 101 is applied, receives the poll from the reader / writer 20 in step S16, and polls in step S17. The confirmation response to is transmitted to the reader / writer 20.

The communication process in step S17 is the communication based on the communication parameter (RF1) (= setting parameter) optimum for the type of reader / writer (R / W) in step S15. It is executed and can be executed as a reliable communication process without errors.

(Steps S18 to S19)
After that, in steps S18 to S19, the communication control unit 103 and the device control unit 101 of the mobile terminal 10 execute the communication process to which the reader / writer 20 and the communication parameter (RF1) notified from the device control unit 101 are applied. Performs predetermined processing, for example, communication processing and data processing required for payment processing.

(Steps S20 to S21)
When a series of communication processing data processing is completed in steps S18 to S19, the device control unit 101 of the mobile terminal 10 transmits a communication log to the communication management server 50 in step S20.

The communication log contains the execution date and time of the communication process, the type information of the reader / writer targeted for communication, and the corresponding data of the communication parameter (RF1) applied to the communication.

The communication management server 50 stores the communication log received from the mobile terminal 10 in the storage unit in step S21.

In the sequence shown in FIG. 9, one reader / writer was detected in the image captured by the camera of the mobile terminal 10, and the type of the detected reader / writer could be identified based on the data stored in the storage unit 106 of the mobile terminal 10. This is the processing sequence of the case.

(4-2 (Processing Example 2) Processing sequence when a mobile terminal detects a plurality of reader / writers, then approaches one reader / writer, and succeeds in identifying the type of the reader / writer)
Next, referring to the sequence diagram shown in FIG. 10, the processing sequence when the mobile terminal detects a plurality of reader / writers, then approaches one reader / writer, and succeeds in identifying the type of the reader / writer. Will be described.

From the left, the sequence diagram of FIG. 10 shows the communication management server 50, the device control unit 101 of the mobile terminal 10, the communication control unit 103 of the mobile terminal 10, the reader / writer A1, 20a1, and the reader / writer A2, 20a2.
Processing proceeds in chronological order from step S25 to step S38.
The processing of each step will be described below.

(Step S25)
It is assumed that the mobile terminal is set to execute communication (near field communication) processing to which the communication parameter (RF0) is applied as an initial setting.

(Step S26)
Each of the reader / writer A1, 20a1 and the reader / writer A2, 20a2 continuously transmits a polling signal for confirming the mobile terminal in step S26.

However, the polling signals output by the reader / writer A1, 20a1 and the reader / writer A2, 20a2 are not the optimum communication settings for the communication to which the communication parameter (RF0) of the mobile terminal 10 is applied, and the mobile terminal 10 is left as it is. It is difficult to communicate without errors between the reader and the writer.
However, the mobile terminal 10 is in a state where it can detect at least a part of the polling signal output by the reader / writer.

(Step S27)
When the communication control unit 103 of the mobile terminal 10 detects the polling signal output by the reader / writer A1, 20a1 in step S27, the communication control unit 103 notifies the device control unit 101 that the RF signal (polling signal) has been detected.

(Step S28)
When the device control unit 101 of the mobile terminal 10 inputs the RF signal (polling signal) detection information from the communication control unit 103, in step S28, the device control unit 101 of the mobile terminal 10 activates the camera of the mobile terminal 10 and starts image shooting by the camera.

The user may perform the camera activation process. In this case, the process of step S28 or lower is executed regardless of whether or not the polling signals of steps S26 to S27 are received.

(Steps S29 to S30)
Next, in step S29, the device control unit 101 of the mobile terminal 10 executes an identification process of the type of reader / writer (R / W) based on the image captured by the camera.

However, at the time of this step S29, the image captured by the camera includes two reader / writers, that is, reader / writers A1 and 20a1 and reader / writers A2 and 20a2.

The device control unit 101 of the mobile terminal 10 determines that there are a plurality of detected reader / writers, and in step S30, sets the communication control unit 103 for communication when a plurality of reader / writers are detected.

That is, it is stored in the storage unit 106 of the mobile terminal 10 described above with reference to FIG.
"(C) Communication parameters for multiple reader / writer (R / W) detection"
Make communication settings using.

Specifically, in order to prevent interference and communication errors, communication control that temporarily stops communication, limits output, or controls active load modulation (ALM) stop (OFF), etc. Execute the process.

(Step S31)
Next, when the user holding the mobile terminal 10 brings the mobile terminal 10 closer to the reader / writer A1, 20a1, the camera-captured image of the mobile terminal 10 becomes an image captured only by the reader / writer A1, 20a1.

In step S31, the device control unit 101 of the mobile terminal 10 executes an identification process of the type of reader / writer (R / W) based on the image captured by the camera.

The device control unit 101 of the mobile terminal 10 has an image of the reader / writer A1, 20a1 included in the image captured by the camera, and a reader / writer (R / W) type identification parameter (a1, a2, a3, stored in the storage unit 106. (・・) Are compared to determine which of the parameters (a1, a2, a3 ...) Matching the characteristics of the captured image.

In step S31, if the identification processing that the type of the reader / writer A1, 20a1 is (A1) is successful based on the image captured by the camera, the process proceeds to step S32.

(Step S32)
Next, in step S32, the device control unit 101 of the mobile terminal 10 sets the optimum communication parameter (RF1) for the type (A1) of the identified reader / writer A1, 20a1.

Here, "(b) communication parameter difference data (difference data between RF0 communication parameters and RF0 to RF0 (ΔRF1, ΔRF2, ΔRF3 ...))" Explained with reference to FIG. 8 above.
Using this difference data (ΔRF1), the optimum communication parameter (RF1) for the type (A1) of the reader / writer A1, 20a1 is calculated.

That is,
RF1 = RF0 + ΔRF1
According to the above formula, the optimum communication parameter (RF1) for the type (A1) of the reader / writer A1, 20a1 is calculated.
The device control unit 101 of the mobile terminal 10 notifies the communication control unit 103 of the calculated parameter (RF1), and causes the communication control unit 103 to start communication to which this parameter (RF1) is applied.

(Steps S33 to S34)
The communication control unit 103 of the mobile terminal 10 executes communication processing to which the communication parameter (RF1) notified from the device control unit 101 is applied, receives polling from the reader / writer A1, 20a1 in step S33, and receives polling from step S34. The confirmation response to the polling is transmitted to the reader / writer A1, 20a1.

This communication process is executed as communication based on the setting of the optimum communication parameter for the type of reader / writer A1, 20a1, and can be executed as reliable communication process without error.

(Steps S35 to S36)
After that, in steps S35 to S36, the communication control unit 103 and the device control unit 101 of the mobile terminal 10 execute the communication process to which the reader / writer A1 and 20a1 and the communication parameter (RF1) notified from the device control unit 101 are applied. Then, predetermined processing, for example, communication processing and data processing required for payment processing is executed.

(Steps S37 to S38)
When a series of communication processing data processing is completed in steps S35 to S36, the device control unit 101 of the mobile terminal 10 transmits a communication log to the communication management server 50 in step S37.

The communication log includes the execution date and time of the communication process, the type information of the reader / writer A1, 20a1 to be communicated, and the corresponding data of the communication parameter (RF1) applied to the communication.

The communication management server 50 stores the communication log received from the mobile terminal 10 in the storage unit in step S38.

(4-3 (Processing Example 3) Processing sequence when a mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, and receives and uses communication parameters from the communication management server)
Next, referring to FIGS. 11 to 12, as a processing example 3, the mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, and receives a communication parameter from the communication management server. The processing sequence when using it will be described.

From the left, the sequence diagrams of FIGS. 11 to 12 show the communication management server 50, the device control unit 101 of the mobile terminal 10, the communication control unit 103 of the mobile terminal 10, and the reader / writers A3 and 20a3.
Processing proceeds in chronological order from step S40 to step S55.
The processing of each step will be described below.

(Step S40)
It is assumed that the mobile terminal is set to execute communication (near field communication) processing to which the communication parameter (RF0) is applied as an initial setting.

(Step S41)
In step S41, the reader / writer A3 and 20a3 continuously transmit the polling signal for confirming the mobile terminal.
However, the polling signal output by the reader / writer A3, 20a3 is not the optimum communication setting for the communication to which the communication parameter (RF0) of the mobile terminal 10 is applied, and the mobile terminal 10 and the reader / writer A3, 20a3 are left as they are. It is difficult to communicate without errors between them.
However, the mobile terminal 10 is in a state where it can detect at least a part of the polling signal output by the reader / writer A3, 20a3.

(Step S42)
When the communication control unit 103 of the mobile terminal 10 detects the polling signal output by the reader / writer A3, 20a3, the communication control unit 103 notifies the device control unit 101 that the RF signal (polling signal) is detected in step S42.

(Step S43)
When the device control unit 101 of the mobile terminal 10 inputs the RF signal (polling signal) detection information from the communication control unit 103, in step S43, the device control unit 101 of the mobile terminal 10 activates the camera of the mobile terminal 10 and starts image shooting by the camera.

The user may perform the camera activation process. In this case, the process of step S43 or lower is executed regardless of whether or not the polling signals of steps S41 to S42 are received.

(Step S44)
Next, in step S44, the device control unit 101 of the mobile terminal 10 executes an identification process of the type of reader / writer (R / W) based on the image captured by the camera.

In this processing example, it is assumed that the device control unit 101 of the mobile terminal 10 fails in the identification processing of the type of reader / writer (R / W) based on the image captured by the camera in step S44.
That is, the data having the characteristics matching the characteristics of the image of the reader / writer (R / W) included in the image captured by the camera is stored in the storage unit 106 of the mobile terminal 10 as a parameter for identifying the type of the reader / writer (R / W). It is assumed that the detection cannot be performed from (a1, a2, a3 ...).

(Step S45)
When the device control unit 101 of the mobile terminal 10 fails in the identification process of the type of reader / writer (R / W) based on the image captured by the camera in step S44, the device control unit 101 causes the communication management server 50 to read / write (R / W) in step S45. ) Perform types of query processing.

This inquiry processing is executed by sending the image of the reader / writer (R / W) taken by the mobile terminal 10 and the identifier of the own device to the communication management server 50. The identifier of the own device includes information indicating the device type of the own device.

(Step S46)
The communication management server 50 that has received the reader / writer (R / W) type inquiry from the mobile terminal 10 has "(s1)" in the data held by the server, that is, the data stored in the communication management server shown in FIG. 8 described above. The reader / writer (R / W) type is identified with reference to "Leader / Writer (R / W) type identification parameter".

By this process, the communication management server 50 succeeds in identifying the reader / writer (R / W) type, and determines that the reader / writer type = A3.

(Step S47)
Next, the communication management server 50 determines the type of mobile terminal and the type of mobile terminal based on the identification result such as the reader / writer type = A3 as the identification result and the type of mobile terminal determined based on the identifier of the mobile terminal of the inquiry source. The optimum communication parameter for the combination of reader / writer types is selected and transmitted to the mobile terminal 10.

As described above with reference to FIG. 8, in the data stored in the communication management server,
"(S3) Communication parameters corresponding to reader / writer (R / W) type for each mobile terminal type"
This data is an area in which communication parameters corresponding to reader / writer (R / W) types are stored for each type of mobile terminal.
As described above, the communication management server 50 holds the optimum parameters corresponding to each reader / writer (R / W) in various communication terminal units.

In step S47, the optimum communication parameter (RF3) for the combination of the mobile terminal type and the reader / writer type is selected from the “(s3) Reader / Writer (R / W) type corresponding communication parameter for each mobile terminal type” storage area. Is selected and transmitted to the mobile terminal 10.

(Step S48)
Next, in step S48, the device control unit 101 of the mobile terminal 10 transfers the communication parameter (RF3) received from the communication management server 50 to the communication control unit 103, and transfers this parameter (RF3) to the communication control unit 103. Start the applied communication.

(Steps S49 to S50)
The communication control unit 103 of the mobile terminal 10 executes communication processing to which the communication parameter (RF3) notified from the device control unit 101 is applied, receives polling from the reader / writer A3, 20a3 in step S49, and receives polling from the reader / writer A3, 20a3 in step S49. The confirmation response to the polling is transmitted to the reader / writers A3 and 20a3.

This communication process is executed as communication based on the setting of the optimum communication parameter for the types of reader / writer A3 and 20a3, and can be executed as reliable communication process without error.

(Steps S51 to S52)
After that, in steps S51 to S52, the communication control unit 103 and the device control unit 101 of the mobile terminal 10 execute the communication process to which the reader / writer A3, 20a3 and the communication parameter (RF3) notified from the device control unit 101 are applied. Then, predetermined processing, for example, communication processing and data processing required for payment processing is executed.

(Step S53)
When the series of communication processing data processing is completed, the communication control unit of the mobile terminal 10 stores the R / W type information (A3) and the communication parameter (RF3) in the storage unit in step S53. The R / W type information (A3) is recorded in association with the R / W type identification parameter (a3). The R / W type identification parameter (a3) is data acquired from the image captured by the camera.

After that, when communication with the same type of reader / writer (R / W) becomes necessary by this processing, the type identification of the reader / writer (R / W) and the optimum communication are performed without making an inquiry to the communication management server 50. It is possible to select parameters.

(Steps S54 to S55)
After that, the device control unit 101 of the mobile terminal 10 transmits the communication log to the communication management server 50 in step S54.
The communication log includes the execution date and time of the communication process, the type information of the reader / writer targeted for communication, and the corresponding data of the communication parameter (RF3) applied to the communication.

The communication management server 50 stores the communication log received from the mobile terminal 10 in the storage unit in step S55.

(4-4 (Processing Example 4) When the mobile terminal detects one reader / writer and the transmission signal from the detected reader / writer is successfully received, but the transmission signal from the mobile terminal is not accepted by the reader / writer. Processing sequence when receiving and using communication parameters from the communication management server)

Next, with reference to FIGS. 13 to 14, as a processing example 4, the mobile terminal detects one reader / writer, and the transmission signal from the detected reader / writer is successfully received, but is transmitted from the mobile terminal. The processing sequence when the communication parameter is received from the communication management server and used when the signal is not accepted by the reader / writer will be described.

In this example, since the transmission signal from the reader / writer is successfully received, it is not necessary to change the reception parameter in the short-range wireless communication, and the process is to change the transmission parameter of the mobile terminal 10.
In addition, also in the above-mentioned processing examples 1 to 3, the mobile terminal 10 can change only the reception parameter or only the transmission parameter.

From the left, the sequence diagrams of FIGS. 13 to 14 show the communication management server 50, the device control unit 101 of the mobile terminal 10, the communication control unit 103 of the mobile terminal 10, and the reader / writers A4 and 20a4.
Processing proceeds in chronological order from step S60 to step S78.
The processing of each step will be described below.

(Step S60)
It is assumed that the mobile terminal is set to execute communication (near field communication) processing to which the communication parameter (RF0) is applied as an initial setting.

(Step S61)
The reader / writer A4, 20a4 continuously transmits the polling signal for confirming the mobile terminal in step S61.

In this example, it is possible to receive the polling signal output by the reader / writer A4, 20a4, but at the time of step S61, the distance between the mobile terminal 10 and the reader / writer A4, 20a4 is large, and the mobile terminal is portable. The terminal 10 is set in a situation where it is difficult to receive the polling signals of the reader / writers A4 and 20a4.
However, the mobile terminal 10 is in a state where it can detect at least a part of the polling signals output by the reader / writers A4 and 20a4.

(Step S62)
When the communication control unit 103 of the mobile terminal 10 detects the polling signal output by the reader / writer A4, 20a4, it notifies the device control unit 101 that the RF signal (polling signal) is detected in step S62.

(Step S63)
When the device control unit 101 of the mobile terminal 10 inputs the RF signal (polling signal) detection information from the communication control unit 103, in step S63, the device control unit 101 of the mobile terminal 10 activates the camera of the mobile terminal 10 and starts image shooting by the camera.

The user may perform the camera activation process. In this case, the process of step S63 or lower is executed regardless of whether or not the polling signals of steps S61 to S62 are received.

(Step S64)
Next, in step S44, the device control unit 101 of the mobile terminal 10 executes an identification process of the type of reader / writer (R / W) based on the image captured by the camera.

In this processing example, it is assumed that the device control unit 101 of the mobile terminal 10 fails in the identification processing of the type of reader / writer (R / W) based on the image captured by the camera in step S64.
That is, the data having the characteristics matching the characteristics of the image of the reader / writer (R / W) included in the image captured by the camera is stored in the storage unit 106 of the mobile terminal 10 as a parameter for identifying the type of the reader / writer (R / W). It is assumed that the detection cannot be performed from (a1, a2, a3 ...).

(Steps S65 to S68)
Next, in step S65, the distance between the mobile terminal 10 and the reader / writer A4, 20a4 becomes closer, and the mobile terminal 10 succeeds in receiving the polling signal of the reader / writer A4, 20a4 in step S66.

In response to the reception of the polling signal, the communication control unit 103 of the mobile terminal 10 transmits a response to the polling to the reader / writer A4, 20a4 in step S67, and thereafter, data other than the polling signal is received from the reader / writer A4, 20a4. Can not. Based on this state, the communication control unit 103 of the mobile terminal 10 determines that the response signal of the mobile terminal 10 has not been normally received by the reader / writer A4, 20a4, and in step S68, the response transmission error is sent to the device control unit 101. Notify that is occurring.

(Step S69)
In step S69, the device control unit 101 that has received the notification of the occurrence of the response transmission error executes a reader / writer (R / W) type inquiry process on the communication management server 50.
This inquiry processing is executed by sending the image of the reader / writer (R / W) taken by the mobile terminal 10 and the identifier of the own device to the communication management server 50. The identifier of the own device includes information indicating the device type of the own device.

(Step S70)
The communication management server 50 that has received the reader / writer (R / W) type inquiry from the mobile terminal 10 has "(s1)" in the data held by the server, that is, the data stored in the communication management server shown in FIG. 8 described above. The reader / writer (R / W) type is identified with reference to "Leader / Writer (R / W) type identification parameter".

By this process, the communication management server 50 succeeds in identifying the reader / writer (R / W) type, and determines that the reader / writer type = A4.

(Step S71)
Next, the communication management server 50 determines the type of mobile terminal and the type of mobile terminal based on the identification result such as the reader / writer type = A4 as the identification result and the type of mobile terminal determined based on the identifier of the mobile terminal of the inquiry source. The optimum communication parameter for the combination of reader / writer types is selected and transmitted to the mobile terminal 10.

In step S71, the optimum communication parameter (RF4) for the combination of the mobile terminal type and the reader / writer type is selected from the “(s3) Reader / Writer (R / W) type corresponding communication parameter for each mobile terminal type” storage area. Is selected and transmitted to the mobile terminal 10.

(Step S72)
Next, in step S72, the device control unit 101 of the mobile terminal 10 transfers the communication parameter (RF4) received from the communication management server 50 to the communication control unit 103, and sends this parameter (RF4) to the communication control unit 103. Start the applied communication.

In this processing example, the reception processing of the transmission data of the reader / writer A4 and 20a4 can be executed normally, so that the reception parameter does not need to be changed. That is, the communication control unit 103 may perform a process of changing only the parameters in the transmission process from the mobile terminal 10. However, the parameters applied to the transmission / reception processing may also be changed.

(Steps S73 to S74)
The communication control unit 103 of the mobile terminal 10 executes a response transmission process in which the communication parameter (RF4) notified from the device control unit 101 is applied to the polling from the reader / writer A4, 20a4 in step S73 in step S74. To do.
This response transmission process is executed as communication based on the setting of the optimum communication parameter for the type of reader / writer A4, 20a4, and reliable reception by the reader / writer A4, 20a4 becomes possible.

(Steps S75 to S76)
After that, in steps S75 to S76, the communication control unit 103 and the device control unit 101 of the mobile terminal 10 execute the communication process to which the reader / writer A4, 20a4 and the communication parameter (RF4) notified from the device control unit 101 are applied. Then, predetermined processing, for example, communication processing and data processing required for payment processing is executed.

(Step S77)
When the series of communication processing data processing is completed, the communication control unit of the mobile terminal 10 stores the R / W type information (A4) and the communication parameter (RF4) in the storage unit in step S77. The R / W type information (A4) is recorded in association with the R / W type identification parameter (a4). The R / W type identification parameter (a4) is data acquired from the image captured by the camera.

(Steps S78 to S79)
After that, the device control unit 101 of the mobile terminal 10 transmits the communication log to the communication management server 50 in step S78.
The communication log includes the execution date and time of the communication process, the type information of the reader / writer targeted for communication, and the corresponding data of the communication parameter (RF4) applied to the communication.

The communication management server 50 stores the communication log received from the mobile terminal 10 in the storage unit in step S79.

(4-5 (Processing example 5) Processing sequence when a mobile terminal detects one reader / writer, fails to identify the detected reader / writer type, and cannot receive communication parameters from the communication management server)

Next, referring to FIGS. 15 to 16, as a processing example 5, the mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, and also sets the communication parameter from the communication management server. The processing sequence when reception is not possible will be described.

From the left, the sequence diagrams of FIGS. 15 to 16 show the communication management server 50, the device control unit 101 of the mobile terminal 10, the communication control unit 103 of the mobile terminal 10, and the reader / writers A5 and 20a5.
Processing proceeds in chronological order from step S80 to step S95.
The processing of each step will be described below.

(Steps S80 to S85)
Since the processes of steps S80 to S85 are the same as the processes of steps S40 to S45 of (Processing Example 3) described above with reference to FIG. 11, the description thereof will be omitted.

In this processing example, similarly to the above-described (processing example 3), the device control unit 101 of the mobile terminal 10 fails in the identification processing of the type of reader / writer (R / W) based on the image captured by the camera in step S84. Then, in step S85, the communication management server 50 is executed with a reader / writer (R / W) type inquiry process.

(Steps S86 to S87)
The communication management server 50 that has received the reader / writer (R / W) type inquiry from the mobile terminal 10 has "(s1)" in the data held by the server, that is, the data stored in the communication management server shown in FIG. 8 described above. The leader / writer (R / W) type identification process is executed with reference to the "reader / writer (R / W) type identification parameter".

However, in the present processing example 5, the communication management server 50 fails to identify the reader / writer (R / W) type, and the mobile terminal 10 cannot identify the reader / writer (R / W) type in step S87. Notify.

(Step S88)
Next, when the device control unit 101 of the mobile terminal 10 receives the reader / writer (R / W) type unidentifiable notification from the communication management server 50 in step S87, the device control unit 101 randomly selects from the communication parameters stored in the storage unit 106. Select one communication parameter, eg, communication parameter (RF3). The selected communication parameter (RF3) is transferred to the communication control unit 103, and the communication control unit 103 starts communication to which this parameter (RF3) is applied.

(Steps S89 to S90)
The communication control unit 103 of the mobile terminal 10 executes communication processing to which the communication parameter (RF3) notified from the device control unit 101 is applied, receives polling from the reader / writers A5 and 20a5 in step S89, and receives polling from the reader / writer A5 and 20a5 in step S89. The acknowledgment for polling is transmitted to the reader / writers A5 and 20a5.

This communication process is communication to which a communication parameter (RF3) randomly selected by the device control unit 101 of the mobile terminal 10 is applied. In this processing example, this communication parameter (RF3) is with the reader / writer A5, 20a5. It is a parameter suitable for communication, and communication is successful.

If a communication error occurs here, the communication control unit 103 notifies the device control unit 101 of a communication error message, and the device control unit 101 selects a different communication parameter and provides it to the communication control unit 103.
These processes are repeated and executed.

In this processing example, the communication parameter (RF3) is a parameter suitable for communication with the reader / writer A5, 20a5, and the communication is successful.

(Steps S91 to S92)
After that, in steps S91 to S92, the communication control unit 103 and the device control unit 101 of the mobile terminal 10 execute the communication process to which the reader / writer A5, 20a5 and the communication parameter (RF3) notified from the device control unit 101 are applied. Then, predetermined processing, for example, communication processing and data processing required for payment processing is executed.

(Step S93)
When the series of communication processing data processing is completed, the communication control unit of the mobile terminal 10 stores the R / W type information (A5) and the communication parameter (RF3) in the storage unit in step S93. The R / W type information (A5) is recorded in association with the R / W type identification parameter (a5). The R / W type identification parameter (a5) is data acquired from the image captured by the camera.

(Steps S94 to S95)
After that, the device control unit 101 of the mobile terminal 10 transmits the communication log to the communication management server 50 in step S94.
The communication log includes the execution date and time of the communication process, the type information of the reader / writer targeted for communication, and the corresponding data of the communication parameter (RF3) applied to the communication.

In step S95, the communication management server 50 stores the communication log received from the mobile terminal 10 in the storage unit.
Further, the R / W type information (A5) and the communication parameter (RF3) are stored in the storage unit in the server. The R / W type information (A5) is recorded in association with the R / W type identification parameter (a5). The R / W type identification parameter (a5) is data acquired from a camera-captured image received from the mobile terminal 10.

By this processing, when a request for communication parameters with the same type of reader / writer (R / W) is subsequently generated from another mobile terminal, it becomes possible to provide the optimum parameters to the mobile terminal.

(4-6 (Processing example 6) Processing sequence when the mobile terminal detects one reader / writer, fails to identify the detected reader / writer type, and cannot connect to the communication management server)

Next, referring to FIGS. 17 to 18, as a processing example 6, the mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, and cannot connect to the communication management server. The processing sequence of the case will be described.

From the left, the sequence diagrams of FIGS. 17 to 18 show the communication management server 50, the device control unit 101 of the mobile terminal 10, the communication control unit 103 of the mobile terminal 10, and the reader / writer (new), 20a8.
Processing proceeds in chronological order from step S100 to step S112.
The processing of each step will be described below.

(Steps S100 to S104)
Since the processes of steps S100 to S104 are the same as the processes of steps S40 to S44 of (Processing Example 3) described above with reference to FIG. 11, the description thereof will be omitted.

In this processing example, as in the case of (processing example 3) described above, the device control unit 101 of the mobile terminal 10 fails in the identification process of the type of reader / writer (R / W) based on the image captured by the camera in step S104. To do.

(Step S105)
In step S105, the mobile terminal 10 tries to execute a reader / writer (R / W) type inquiry process on the communication management server 50, but cannot connect to the communication management server 50.

(Steps S106 to S107)
The device control unit 101 of the mobile terminal 10 that has detected that it cannot connect to the communication management server 50 sequentially selects different communication parameters from the communication parameters stored in the storage unit 106 in steps S106 to S107. , The selected communication parameter is transferred to the communication control unit 103, and the communication control unit 103 starts communication to which the selected parameter is applied.

In this processing example, it is assumed that communication is sequentially executed for each parameter of the communication parameters (RF3 to RF7).

(Steps S108 to S109)
At the timing when the mobile terminal 10 performs communication to which the communication parameter (RF7) selected in step S107 is applied, the polling reception from the reader / writer (new), 20a8 in step S108 succeeds.
In step S109, the mobile terminal 10 transmits a response to polling. The parameter applied to this transmission process is also a communication parameter (RF7).
This communication parameter (RF7) is a parameter suitable for communication with the reader / writer (new), 20a8, and the communication is successful.

(Steps S110 to S111)
After that, in steps S110 to S111, the communication control unit 103 and the device control unit 101 of the mobile terminal 10 apply the reader / writer (new), 20a8 and the communication parameter (RF7) notified from the device control unit 101 to the communication process. Is executed, and predetermined processing, for example, communication processing and data processing required for payment processing is executed.

(Step S112)
When the series of communication processing data processing is completed, the communication control unit of the mobile terminal 10 stores the R / W type information ((new)) and the communication parameter (RF7) in the storage unit in step S112. The R / W type information ((new)) is recorded in association with the R / W type identification parameter ((new)). The R / W type identification parameter ((new)) is data acquired from the image captured by the camera.

(4-7 (Processing Example 7) The mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, first receives the communication parameter identifier from the communication management server, and then the communication parameter. Processing sequence when receiving and using)

Next, referring to FIGS. 19 to 20, as a processing example 7, the mobile terminal detects one reader / writer, fails to identify the type of the detected reader / writer, and first, from the communication management server, the communication parameter. The processing sequence when the identifier is received and then the communication parameter is received and used will be described.

From the left, the sequence diagrams of FIGS. 19 to 20 show the communication management server 50, the device control unit 101 of the mobile terminal 10, the communication control unit 103 of the mobile terminal 10, and the reader / writers A8 and 20a8.
Processing proceeds in chronological order from step S120 to step S138.
The processing of each step will be described below.

(Steps S120 to S125)
Since the processes of steps S120 to S125 are the same as the processes of steps S40 to S45 described above with reference to FIG. 11 (process example 3), the description thereof will be omitted.

In this processing example, similarly to the above-described (processing example 3), the device control unit 101 of the mobile terminal 10 fails in the identification processing of the type of reader / writer (R / W) based on the camera captured image in step S124. Then, in step S85, the communication management server 50 is executed with a reader / writer (R / W) type inquiry process.

(Steps S126 to S127)
The communication management server 50 that has received the reader / writer (R / W) type inquiry from the mobile terminal 10 has "(s1)" in the data held by the server, that is, the data stored in the communication management server shown in FIG. 8 described above. The leader / writer (R / W) type identification process is executed with reference to the "reader / writer (R / W) type identification parameter".

In this processing example 6, it is assumed that the communication management server 50 has succeeded in identifying the reader / writer (R / W) type and can identify that the reader / writer (R / W) type = (A8).

In step S127, the communication management server 50 notifies the mobile terminal 10 of the identifier of the communication parameter (RF8) most suitable for the reader / writer (R / W) type = (A8).
This is because if the mobile terminal 10 holds the communication parameter (RF8), it is not necessary to transmit the parameter itself.

(Step S128)
Upon receiving the notification of the identifier of the communication parameter (RF8) from the communication management server 50, the device control unit 101 of the mobile terminal 10 searches in step S128 whether the communication parameter (RF8) is stored in the storage unit 106.
However, it is assumed that the communication parameter (RF8) is not stored.

(Steps S129 to S130)
In step S128, the device control unit 101 of the mobile terminal 10 that confirms that the communication parameter (RF8) is not stored in the storage unit 106 requests the communication management server 50 to transmit the communication parameter (RF8) in step S129. ..

In step S130, the communication management server 50 transmits the communication parameter (RF8) to the mobile terminal 10 in response to the communication parameter transmission request from the mobile terminal 10.

(Step S131)
Next, in step S131, the device control unit 101 of the mobile terminal 10 transfers the communication parameter (RF8) received from the communication management server 50 to the communication control unit 103, and sends this parameter (RF8) to the communication control unit 103. Start the applied communication.

(Steps S132 to S133)
The communication control unit 103 of the mobile terminal 10 executes communication processing to which the communication parameter (RF8) notified from the device control unit 101 is applied, receives polling from the reader / writers A8 and 20a8 in step S132, and receives polling from step S133. The acknowledgment to the polling is transmitted to the reader / writers A8 and 20a8.

This communication process is communication to which the communication parameter (RF8) suitable for the communication with the reader / writer A8, 20a8 is applied, and the communication is successful.

(Steps S134 to S135)
After that, in steps S134 to S135, the communication control unit 103 and the device control unit 101 of the mobile terminal 10 execute the communication process to which the reader / writer A8, 20a8 and the communication parameter (RF8) notified from the device control unit 101 are applied. Then, predetermined processing, for example, communication processing and data processing required for payment processing is executed.

(Step S136)
When the series of communication processing data processing is completed, the communication control unit of the mobile terminal 10 stores the R / W type information (A8) and the communication parameter (RF8) in the storage unit in step S136. The R / W type information (A8) is recorded in association with the R / W type identification parameter (a8). The R / W type identification parameter (a8) is data acquired from the image captured by the camera.

(Steps S137 to S138)
After that, the device control unit 101 of the mobile terminal 10 transmits the communication log to the communication management server 50 in step S137.
The communication log includes the execution date and time of the communication process, the type information of the reader / writer targeted for communication, and the corresponding data of the communication parameter (RF8) applied to the communication.

The communication management server 50 stores the communication log received from the mobile terminal 10 in the storage unit in step S138.

[5. About hardware configuration examples of communication devices, reader / writers, and servers]
Next, a hardware configuration example of the communication device and the server of the present disclosure will be described.
FIG. 21 is a diagram showing an example of a hardware configuration constituting each device such as a mobile terminal, a reader / writer, and a communication management server.

The hardware configuration shown in FIG. 21 will be described.
The CPU (Central Processing Unit) 301 functions as a control unit or a data processing unit that executes various processes according to a program stored in the ROM (Read Only Memory) 302 or the storage unit 308. For example, the process according to the sequence described in the above-described embodiment is executed. The RAM (Random Access Memory) 303 stores programs and data executed by the CPU 301. These CPU 301, ROM 302, and RAM 303 are connected to each other by a bus 304.

The CPU 301 is connected to the input / output interface 305 via the bus 304, and the input / output interface 305 is connected to an input unit 306 including various switches, a keyboard, a mouse, a microphone, and an output unit 307 including a display and a speaker. There is. The CPU 301 executes various processes in response to a command input from the input unit 306, and outputs the process results to, for example, the output unit 307.

The storage unit 308 connected to the input / output interface 305 is composed of, for example, a flash memory, a hard disk, etc., and stores a program executed by the CPU 301 and various data. The communication unit 309 functions as a transmission / reception unit for short-range wireless communication, Wi-Fi communication, Bluetooth (registered trademark) (BT) communication, and other data communication via a network such as the Internet or a local area network, and communicates with an external device. connect.

The drive 310 connected to the input / output interface 305 drives a removable medium 311 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory such as a memory card, and records or reads data.

[6. Summary of the structure of this disclosure]
As described above, the examples of the present disclosure have been described in detail with reference to the specific examples. However, it is self-evident that a person skilled in the art may modify or substitute the examples without departing from the gist of the present disclosure. That is, the present invention has been disclosed in the form of an example, and should not be construed in a limited manner. In order to judge the gist of this disclosure, the column of claims should be taken into consideration.

The technology disclosed in the present specification can have the following configuration.
(1) A camera that takes images and
The captured image of the camera is analyzed, the communication partner device included in the captured image is identified, and the photographed image is identified.
A communication device having a control unit that determines an optimum communication mode based on the identification result and executes communication processing with the communication partner device in the determined communication mode.

(2) The communication device is
It has a communication unit that executes short-range wireless communication,
The control unit
The communication device according to (1), which executes short-range wireless communication with the communication partner device in a communication mode determined based on the identification result of the communication partner device.

(3) The control unit
At least one of the mode of receiving the received signal from the communication partner device and the mode of transmitting the transmission signal from the own device to the communication partner device is executed in the communication mode determined based on the identification result of the communication partner device. The communication device according to (1) or (2).

(4) The communication device is
It has a storage unit that stores the optimum communication parameters corresponding to the type of communication partner device.
The control unit
The communication device according to any one of (1) to (3), wherein an optimum communication parameter corresponding to the type of the communication partner device is acquired from the storage unit, and a communication process to which the acquired communication parameter is applied is executed.

(5) The communication parameters include Q value of communication signal, load modulation (amplitude / phase), input magnetic field, reply threshold, resonance frequency, reception filter characteristics, optimum control setting of active load modulation (ALM), and output signal strength. The communication device according to (4), which includes at least one of the optimum values.

(6) The control unit
The communication device according to any one of (1) to (5), which acquires an optimum communication parameter corresponding to the type of the communication partner device from an external server and executes a communication process to which the acquired communication parameter is applied.

(7) The control unit
Identify the number of communication partner devices included in the captured image and
The communication device according to any one of (1) to (6), which executes the optimum communication control process for the communication partner device based on the number of the identified communication partner devices.

(8) The control unit
When the number of communication partner devices included in the captured image is more than one,
The communication device according to (7), which controls at least one of stopping communication, limiting communication output, stopping (OFF) or limiting active load modulation (ALM).

(9) The communication device is
It has a storage unit that stores identification parameters for identifying the type of communication partner device.
The control unit
Described in any of (1) to (8) for identifying the type of the communication partner device by analyzing the captured image of the camera and comparing the characteristics of the communication partner device included in the captured image with the identification parameter. Communication device.

(10) The identification parameter is
The communication device according to (9), which includes information on at least one of a color, a shape, a mark indicating a communication method, a position thereof, and a position of a display unit of the communication partner device.

(11) The communication device is a mobile terminal that executes short-range wireless communication.
The communication device according to any one of (1) to (10), wherein the communication partner device is a reader / writer.

(12) Communication equipment and
A communication partner device that executes short-range wireless communication with the communication device,
A communication control system having a communication management server capable of communicating with the communication device.
The communication device is
With a camera that takes images
It has a control unit that transmits the captured image of the camera to the communication management server.
The communication management server
The image received from the communication device is analyzed, the communication partner device included in the received image is identified, and the communication partner device is identified.
Based on the identification result, the optimum communication parameter for the communication partner device is selected and transmitted to the communication device.
The control unit of the communication device
A communication control system that applies communication parameters received from the communication management server to execute communication with the communication partner device.

(13) The communication management server is
It has a storage unit that stores the optimum communication parameters corresponding to various types of communication partners.
The communication control system according to (12), wherein the optimum communication parameters corresponding to the type of the communication partner device are acquired from the storage unit, and the acquired communication parameters are transmitted to the communication device.

(14) The communication management server is
It has a storage unit that stores identification parameters for identifying the types of various communication partners.
The communication control system according to (12) or (13), which identifies the type of communication partner device by comparing the received image with the identification parameter.

(15) A communication control method executed in a communication device.
The control unit of the communication device
Analyze the captured image of the camera, identify the communication partner device included in the captured image, and
A communication control method in which an optimum communication mode is determined based on an identification result, and communication processing with the communication partner device is executed in the determined communication mode.

(16) Communication equipment and
A communication partner device that executes short-range wireless communication with the communication device,
It is a communication control method executed in a communication control system having a communication management server capable of communicating with the communication device.
The communication device
The captured image of the camera is transmitted to the communication management server,
The communication management server
The image received from the communication device is analyzed, the communication partner device included in the received image is identified, and the communication partner device is identified.
Based on the identification result, the optimum communication parameter for the communication partner device is selected and transmitted to the communication device.
The communication device
A communication control method for executing communication with the communication partner device by applying communication parameters received from the communication management server.

(17) A program that executes communication control processing in a communication device.
In the control unit of the communication device,
Analyze the captured image of the camera, identify the communication partner device included in the captured image, and
A program that determines the optimum communication mode based on the identification result and executes communication processing with the communication partner device in the determined communication mode.

In addition, the series of processes described in the specification can be executed by hardware, software, or a composite configuration of both. When executing processing by software, install the program that records the processing sequence in the memory in the computer built in the dedicated hardware and execute it, or execute the program on a general-purpose computer that can execute various processing. It can be installed and run. For example, the program can be pre-recorded on a recording medium. In addition to installing on a computer from a recording medium, it is possible to receive a program via a network such as LAN (Local Area Network) or the Internet and install it on a recording medium such as a built-in hard disk.

The various processes described in the specification are not only executed in chronological order according to the description, but may also be executed in parallel or individually as required by the processing capacity of the device that executes the processes. Further, in the present specification, the system is a logical set configuration of a plurality of devices, and the devices having each configuration are not limited to those in the same housing.

As described above, according to the configuration of one embodiment of the present disclosure, a communication device and communication optimization for performing communication by setting optimum communication parameters according to the type of the communication partner device are realized.
Specifically, for example, the captured image of the camera is analyzed, the type of the communication partner device is identified from the captured image, and the optimum communication mode is determined based on the identification result of the identified communication partner device, and the determined communication is performed. Short-range wireless communication with the communication partner device is executed in the mode. The communication device acquires the optimum communication parameters corresponding to the type of the communication partner device from the storage unit or an external server. For example, communication parameters such as Q value of communication signal, load modulation (amplitude / phase), input magnetic field, reply threshold, resonance frequency, reception filter characteristics, optimum control setting of active load modulation (ALM), optimum strength of output signal, etc. Is acquired and the applied communication process is executed.
With this configuration, it is possible to realize a communication device and communication optimization in which optimum communication parameters are set according to the type of communication partner device to perform communication.

10 Mobile terminal 11 Display unit 12 Short-range wireless communication unit 13 Camera 20 Reader / writer (R / W)
40 Payment processing server 50 Communication management server 101 Device control unit 102 Camera 103 Communication control unit 104 Input unit 105 Output unit 106 Storage unit 120 Communication unit 121 Short-range wireless communication unit 122 Other communication unit 301 CPU
302 ROM
303 RAM
304 Bus 305 Input / output interface 306 Input unit 307 Output unit 308 Storage unit 309 Communication unit 310 Drive 311 Removable media

Claims

With a camera that takes images
The captured image of the camera is analyzed, the communication partner device included in the captured image is identified, and the photographed image is identified.
A communication device having a control unit that determines an optimum communication mode based on the identification result and executes communication processing with the communication partner device in the determined communication mode.
The communication device is
It has a communication unit that executes short-range wireless communication,
The control unit
The communication device according to claim 1, wherein short-range wireless communication with the communication partner device is executed in a communication mode determined based on the identification result of the communication partner device.
The control unit
At least one of the mode of receiving the received signal from the communication partner device and the mode of transmitting the transmission signal from the own device to the communication partner device is executed in the communication mode determined based on the identification result of the communication partner device. The communication device according to claim 1.
The communication device is
It has a storage unit that stores the optimum communication parameters corresponding to the type of communication partner device.
The control unit
The communication device according to claim 1, wherein an optimum communication parameter corresponding to the type of the communication partner device is acquired from the storage unit, and a communication process to which the acquired communication parameter is applied is executed.
The communication parameters include Q value of communication signal, load modulation (amplitude / phase), input magnetic field, reply threshold, resonance frequency, reception filter characteristics, optimum control setting of active load modulation (ALM), and optimum strength of output signal. The communication device according to claim 4, which includes at least one of them.
The control unit
The communication device according to claim 1, wherein an optimum communication parameter corresponding to the type of the communication partner device is acquired from an external server, and a communication process to which the acquired communication parameter is applied is executed.
The control unit
Identify the number of communication partner devices included in the captured image and
The communication device according to claim 1, wherein the communication control process optimal for the communication partner device is executed based on the number of the identified communication partner devices.
The control unit
When the number of communication partner devices included in the captured image is more than one,
The communication device according to claim 7, wherein at least one of control of stopping communication, limiting communication output, stopping (OFF) or limiting active load modulation (ALM) is performed.
The communication device is
It has a storage unit that stores identification parameters for identifying the type of communication partner device.
The control unit
The communication device according to claim 1, wherein an image captured by the camera is analyzed, and the characteristics of the communication partner device included in the captured image are compared with the identification parameter to identify the type of the communication partner device.
The identification parameter is
The communication device according to claim 9, further comprising information on at least one of a color, a shape, a mark indicating a communication method, a position thereof, and a position of a display unit of the communication partner device.
The communication device is a mobile terminal that executes short-range wireless communication.
The communication device according to claim 1, wherein the communication partner device is a reader / writer.
Communication equipment and
A communication partner device that executes short-range wireless communication with the communication device,
A communication control system having a communication management server capable of communicating with the communication device.
The communication device is
With a camera that takes images
It has a control unit that transmits the captured image of the camera to the communication management server.
The communication management server
The image received from the communication device is analyzed, the communication partner device included in the received image is identified, and the communication partner device is identified.
Based on the identification result, the optimum communication parameter for the communication partner device is selected and transmitted to the communication device.
The control unit of the communication device
A communication control system that applies communication parameters received from the communication management server to execute communication with the communication partner device.
The communication management server
It has a storage unit that stores the optimum communication parameters corresponding to various types of communication partners.
The communication control system according to claim 12, wherein the optimum communication parameters corresponding to the type of the communication partner device are acquired from the storage unit, and the acquired communication parameters are transmitted to the communication device.
The communication management server
It has a storage unit that stores identification parameters for identifying the types of various communication partners.
The communication control system according to claim 12, wherein the received image is compared with the identification parameter to identify the type of the communication partner device.
It is a communication control method executed in a communication device.
The control unit of the communication device
Analyze the captured image of the camera, identify the communication partner device included in the captured image, and
A communication control method in which an optimum communication mode is determined based on an identification result, and communication processing with the communication partner device is executed in the determined communication mode.
Communication equipment and
A communication partner device that executes short-range wireless communication with the communication device,
It is a communication control method executed in a communication control system having a communication management server capable of communicating with the communication device.
The communication device
The captured image of the camera is transmitted to the communication management server,
The communication management server
The image received from the communication device is analyzed, the communication partner device included in the received image is identified, and the communication partner device is identified.
Based on the identification result, the optimum communication parameter for the communication partner device is selected and transmitted to the communication device.
The communication device
A communication control method for executing communication with the communication partner device by applying communication parameters received from the communication management server.
A program that executes communication control processing in a communication device.
In the control unit of the communication device,
Analyze the captured image of the camera, identify the communication partner device included in the captured image, and
A program that determines the optimum communication mode based on the identification result and executes communication processing with the communication partner device in the determined communication mode.