JP2015035692A - Communication mediation device, communication system, and communication method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for enhancing real-time property in control.SOLUTION: A USB controller 211 performs cable communication with a controller 20. A radio communication unit 212 performs radio communication with a radio communication terminal 3. A storage unit 213 stores a setting value of the radio communication terminal 3 received by the USB controller 211 from the controller 20. The controller 20 transmits a first setting request including the setting value of the radio communication terminal 3. The radio communication unit 212 transmits a second setting request including the setting value included in the first setting request received by the USB controller 211, to the radio communication terminal 3. The USB controller 211 transmits a response to the first setting request to the controller 20 before the radio communication unit 212 receives a response to the second setting request that is transmitted from the radio communication terminal 3.

Description

  The present invention relates to communication technology.

  As described in Patent Documents 1 to 3, various techniques have been proposed for communication techniques.

Japanese Patent No. 4683629 JP 2007-110343 A JP 2005-44094 A

  The protocol conversion device described in Patent Literature 1 and the wireless communication device described in Patent Literature 2 function as a communication mediation device that mediates communication between the devices. When a certain device controls another device through the communication mediating device, real-time control of the other device by the certain device may be required.

  Therefore, the present invention has been made in view of the above points, and an object thereof is to provide a technique capable of improving the real-time property of control.

  In order to solve the above-described problem, an aspect of the communication mediating apparatus according to the present invention is a communication mediating apparatus that performs wired communication with a first device and wirelessly communicates with a second device, the wired communication with the first device. A wired communication unit that performs wireless communication with the second device, and a storage unit that stores setting values of the second device received by the wired communication unit from the first device, The first apparatus transmits a first setting request including the setting value, and the wireless communication unit transmits a second setting request including the setting value included in the first setting request received by the wired communication unit. The wireless communication unit transmits a response to the first setting request before the response to the second setting request is received by the wireless communication unit. Send to one device.

  In one aspect of the communication mediating apparatus according to the present invention, the wired communication unit sends a response to the first setting request to the first device before the second setting request is transmitted from the wireless communication unit. Send.

  Moreover, in one aspect of the communication mediating apparatus according to the present invention, the wireless communication unit receives the first setting request at a certain timing in the wired communication unit, and then transmits the second setting request. When at least one new first setting request is received by the wired communication unit, the setting included in the first setting request received at the certain timing and the at least one new first setting request. Among the values, the second setting request including only the latest setting value is transmitted.

  Moreover, in one aspect of the communication mediating apparatus according to the present invention, the wireless communication unit receives the first setting request at a certain timing in the wired communication unit, and then transmits the second setting request. When at least one new first setting request is received by the wired communication unit, the setting included in the first setting request received at the certain timing and the at least one new first setting request. The second setting request including the value is transmitted.

  In the communication mediating apparatus according to the aspect of the invention, when the wired communication unit receives the setting value acquisition request from the first device, the wired communication unit transmits the setting value in the storage unit to the first device. .

  Further, in one aspect of the communication mediating apparatus according to the present invention, the wireless communication unit sends a third setting request including the setting value in the storage unit while the first setting request is not received by the wired communication unit. It repeatedly transmits to the second device.

  Further, in one aspect of the communication mediating apparatus according to the present invention, the wireless communication unit includes the set value in the storage unit when the wireless connection with the second device returns after being disconnected. A setting request is transmitted to the second device.

  Further, in one aspect of the communication mediating apparatus according to the present invention, the storage unit stores a latest value and a value before the latest value for the setting value, and the wireless communication unit When the wireless connection with the second device is disconnected and then restored, the fourth setting request including the latest value for the setting value and the value before the latest value in the storage unit Transmit to the second device.

  Further, in one aspect of the communication mediating apparatus according to the present invention, the second apparatus transmits the automatically updated setting value when transmitting a response to the second setting request, and the storage unit includes: The set value transmitted from the second device is stored.

  Further, in one aspect of the communication mediating apparatus according to the present invention, the second device includes a plurality of control target devices, and the first device includes a control target device for each of the plurality of control target devices. The first setting request including a setting value is transmitted, and the storage unit stores setting values for each of the plurality of control target devices received by the wired communication unit.

  In one aspect of the communication mediating apparatus according to the present invention, the plurality of control target devices include at least one of a camera and a microphone.

  An aspect of the communication system according to the present invention includes a first device, a second device, and a communication mediating device that performs wired communication with the first device and performs wireless communication with the second device, The first device transmits a first setting request including the setting value of the second device to the communication mediating device, and the communication mediating device receives the setting included in the first setting request received from the first device. A second setting request including a value is transmitted to the second device, and the second device transmits a response to the second setting request received from the communication mediating device to the communication mediating device, Before receiving a response to the second setting request from the second device, a response to the first setting request is transmitted to the first device.

  Further, one aspect of the communication method according to the present invention is a communication method in a communication mediating device that performs wired communication with the first device and wirelessly communicates with the second device, and (a) from the first device, Receiving a first setting request including a setting value of the second device; (b) a second setting request including the setting value included in the first setting request received in the step (a); Transmitting to the second device; (c) receiving a response to the second setting request from the second device; and (d) responding to the first setting request before step (c). Transmitting to the first device.

  According to the present invention, the real-time property of the control for the second device can be improved.

It is a figure which shows the structure of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows operation | movement of a communication system (information processing system). It is a figure which shows the structure of the modification (monitoring system) of a communication system.

  FIG. 1 is a diagram showing a configuration of a communication system 1 according to the embodiment. The communication system 1 according to the present embodiment is, for example, an information processing system that executes an application, and includes an information processing device 2 and a wireless communication terminal 3 that performs wireless communication with the information processing device 2. Hereinafter, the communication system 1 may be referred to as “information processing system 1”.

<About information processing equipment>
The information processing device 2 includes a controller 20 and a data processing device 21. The controller 20 manages the overall operation of the information processing system 1 in an integrated manner. The controller 20 is wired to the data processing device 21 and performs wired communication with the data processing device 21. The controller 20 is connected to the television receiver 100. The controller 20 transmits a video signal and an audio signal regarding the application to the television receiver 100. The television receiver 100 displays an image (still image and moving image) for the application based on the received video signal and audio signal, and outputs sound such as audio for the application.

  The data processing device 21 includes a data conversion unit 210, a wireless communication unit 212 that performs wireless communication with the wireless communication terminal 3, and a storage unit 213. The storage unit 213 includes, for example, a nonvolatile semiconductor memory.

  The data conversion unit 210 performs wired communication with the controller 20. For example, the controller 20 and the data conversion unit 210 perform communication conforming to USB (Universal Serial Bus) (hereinafter also referred to as “USB communication”). The wireless communication unit 212 performs wireless communication with the wireless communication terminal 3 in accordance with, for example, Wi-Fi (Wireless Fidelity).

  The data conversion unit 210 includes a USB controller 211, and the USB controller 211 performs USB communication with the controller 20. That is, the USB controller 211 functions as a wired communication unit that performs wired communication with the controller 20. In the present embodiment, the controller 20 is a USB host, and the data conversion unit 210 is a USB device.

  The data conversion unit 210 converts USB-compliant data (packets) transmitted from the controller 20 into Wi-Fi-compliant data (packets), and the data (packets) obtained thereby is a wireless communication unit. It outputs to 212. Also, the data conversion unit 210 converts Wi-Fi compliant data (packets) received by the wireless communication unit 212 from the wireless communication terminal 3 into USB compliant data (packets), and is thus obtained. Data (packet) is transmitted to the controller 20.

  The wireless communication unit 212 generates a transmission signal including data output from the data conversion unit 210. Then, the wireless communication unit 212 wirelessly transmits the generated transmission signal. Further, the wireless communication unit 212 receives a transmission signal transmitted from the wireless communication terminal 3 by wireless communication, and acquires data included in the transmission signal. Then, the wireless communication unit 212 outputs the acquired data to the data conversion unit 210.

<About wireless communication terminals>
The wireless communication terminal 3 includes a terminal control unit 30, a display unit 31, a wireless communication unit 32, a camera 33, a microphone 34, an input unit 35, a storage unit 36, and a speaker 37. The storage unit 36 includes, for example, a nonvolatile semiconductor memory. The terminal control unit 30 comprehensively manages the operation of the entire wireless communication terminal 3.

  The wireless communication unit 32 performs wireless communication with the wireless communication unit 212 of the information processing apparatus 2 in accordance with, for example, Wi-Fi. The wireless communication unit 32 generates a transmission signal including data output from the terminal control unit 30 and transmits the transmission signal to the wireless communication unit 212. The wireless communication unit 32 receives a transmission signal transmitted from the wireless communication unit 212, acquires data included in the transmission signal, and outputs the data to the terminal control unit 30. Note that the wireless communication unit 32 and the wireless communication unit 212 may perform wireless communication in accordance with another wireless communication standard, for example, Bluetooth (registered trademark).

  The camera 33 can capture still images and moving images. The camera 33 outputs image data (still image data or moving image data) indicating the captured image to the terminal control unit 30.

  The microphone 34 converts sound such as voice input from the outside of the wireless communication terminal 3 into sound data, and outputs the sound data to the terminal control unit 30.

  The input unit 35 receives user input and outputs data corresponding to the input to the terminal control unit 30. The input unit 35 includes, for example, a touch panel, other sensors, and push-type operation buttons.

  The display unit 31 is, for example, a liquid crystal display, and displays an image indicated by the image data based on image data input from the terminal control unit 30. The display unit 31 displays still images and moving images.

  The speaker 37 converts sound data input from the terminal control unit 30 into sound and outputs the sound to the outside.

  Of the data output from the wireless communication unit 32, the terminal control unit 30 outputs sound data to the speaker 37 and outputs image data to the display unit 31. In addition, the terminal control unit 30 outputs data output from the camera 33, the microphone 34, and the input unit 35 to the wireless communication unit 32. Further, the terminal control unit 30 outputs the image data output from the camera 33 to the display unit 31.

  Note that image data output from the camera 33 may be input to the information processing apparatus 2 through the terminal control unit 30 and the wireless communication unit 32. In the information processing apparatus 2, the input image data is input to the controller 20 through the data processing apparatus 21. The controller 20 generates image data (video signal) according to the application using the input image data, and inputs the image data to the wireless communication terminal 3 through the data processing device 21. In the wireless communication terminal 3, the input image data is input to the display unit 31 through the wireless communication unit 32 and the terminal control unit 30.

  The storage unit 36 stores all setting values for the camera 33 and the microphone 34. The terminal control unit 30 controls the camera 33 and the microphone 34 based on the set value in the storage unit 36. Examples of the setting value of the camera 33 include a setting value indicating power on / off, a setting value indicating whether the imaging mode is the monochrome mode or the color mode, exposure time, resolution, white balance setting value, γ There are values. The set values of the microphone 34 include, for example, a set value indicating power on / off, a volume, and a set value indicating whether or not to mute.

  In the information processing system 1 having the above-described configuration, when the user enjoys an application, the display on the display unit 31 of the wireless communication terminal 3 or the television receiver 100 is held with the wireless communication terminal 3 in hand. Is input to the input unit 35 of the wireless communication terminal 3.

<Communication among controller, data processing device and wireless communication terminal>
In the information processing system 1 according to the present embodiment, the data processing device 21 mediates communication between the controller 20 that is a kind of control device and the wireless communication terminal 3 that is a kind of input device (input terminal). Functions as a device. The controller 20 controls the wireless communication terminal 3 through the data processing device 21.

  In the information processing system 1 according to the present embodiment, the camera 33, the microphone 34, and the input unit 35 of the wireless communication terminal 3 cannot actually perform USB communication, but the data processing device 21 can It is handled as a USB device. As a result, the controller 20 is conscious of the wireless communication between the wireless communication unit 212 and the wireless communication unit 32, as in the case where the camera 33, the microphone 34, and the input unit 35 are wired as USB devices. It is possible to communicate with the camera 33, the microphone 34, and the input unit 35.

  In the information processing system 1, as a device class in USB (sometimes simply referred to as “class”), CDC (communication device class), HID (human interface device), UAC (USB audio class), and UVC (USB video) class) is used. In the information processing system 1, an endpoint corresponding to the CDC (hereinafter referred to as “CDC endpoint”), an endpoint corresponding to the HID (hereinafter referred to as “HID endpoint”), and a UAC An end point (referred to as “UAC end point”) and an end point corresponding to UVC (referred to as “UVC end point”) are prepared. These endpoints are used between the controller 20 and the data processing device 21, specifically the data conversion unit 210, for data transfer. Hereinafter, this data transfer is referred to as “USB data transfer”.

<About USB data transfer>
Bulk transfer is used for data transfer using a CDC endpoint. Bulk transfer is a data-guaranteed asynchronous transfer method. In the present embodiment, control data from the controller 20 to the data conversion unit 210 of the data processing device 21, control data from the controller 20 to the terminal control unit 30 of the wireless communication terminal 3, and from the data conversion unit 210 to the controller 20. Control data directed to the controller 20 from the terminal control unit 30 is transferred using the CDC endpoint. Note that control data for controlling the camera 33 and the microphone 34, which are control target devices, is not transferred using the CDC end point, but is transferred by a class request described later.

  In data transfer using an HID endpoint, interrupt transfer is used. Interrupt transfer is a transfer method in which a small amount of data is transferred periodically. In the present embodiment, data output from the input unit 35 is transferred using the HID endpoint.

  In data transfer using a UAC endpoint, isochronous transfer is used. Isochronous transfer is a transfer method that emphasizes real-time performance. In the present embodiment, sound data output from the microphone 34 is transferred using a UAC end point.

  In data transfer using the UVC end point, isochronous transfer is used. In the present embodiment, image data output from the camera 33 is transferred using a UVC end point.

  FIG. 2 is a diagram showing a state of USB data transfer. When the controller 20 transmits the control data for the data conversion unit 210 via USB, the controller 20 transmits the control data to the data conversion unit 210 using the CDC end point. In addition, when transmitting the control data for the terminal control unit 30 of the wireless communication terminal 3 by USB, the controller 20 transmits the control data to the data conversion unit 210 using the CDC end point. The data conversion unit 210 inputs the received control data for the terminal control unit 30 to the wireless communication unit 212. The wireless communication unit 212 transmits a transmission signal including the input control data to the wireless communication terminal 3 by wireless communication. In the wireless communication terminal 3, the wireless communication unit 32 receives the transmission signal from the wireless communication unit 212, and acquires control data included in the transmission signal. Then, the wireless communication unit 32 outputs the acquired control data to the terminal control unit 30.

  When control data is transferred from the wireless communication terminal 3 to the information processing apparatus 2, the terminal control unit 30 inputs the control data to the wireless communication unit 32. The wireless communication unit 32 transmits a transmission signal including the input control data by wireless communication. In the information processing device 2, the wireless communication unit 212 of the data processing device 21 receives a transmission signal from the wireless communication unit 32 and acquires control data included in the transmission signal. Then, the wireless communication unit 212 outputs the acquired control data to the data conversion unit 210. The data conversion unit 210 transmits the input control data to the controller 20 using the CDC end point.

  When the data output from the input unit 35 is transferred from the wireless communication terminal 3 to the information processing device 2, the terminal control unit 30 outputs the data output from the input unit 35 to the wireless communication unit 32. The wireless communication unit 32 transmits a transmission signal including data from the terminal control unit 30 by wireless communication. In the information processing device 2, the wireless communication unit 212 receives a transmission signal from the wireless communication unit 32 and acquires data included in the transmission signal. Then, the wireless communication unit 212 outputs the acquired data to the data conversion unit 210. The data conversion unit 210 transmits the input data to the controller 20 using the HID endpoint.

  When the sound data output from the microphone 34 is transferred from the wireless communication terminal 3 to the information processing apparatus 2, the terminal control unit 30 outputs the sound data output from the microphone 34 to the wireless communication unit 32. The wireless communication unit 32 transmits a transmission signal including sound data from the terminal control unit 30 by wireless communication. In the information processing apparatus 2, the wireless communication unit 212 receives a transmission signal from the wireless communication unit 32 and acquires sound data included in the transmission signal. Then, the wireless communication unit 212 outputs the acquired sound data to the data conversion unit 210. The data conversion unit 210 transmits the input sound data to the controller 20 using the UAC end point.

  When image data output from the camera 33 is transferred from the wireless communication terminal 3 to the information processing apparatus 2, the terminal control unit 30 outputs image data output from the camera 33 to the wireless communication unit 32. The wireless communication unit 32 transmits a transmission signal including image data from the terminal control unit 30 by wireless communication. In the information processing apparatus 2, the wireless communication unit 212 receives a transmission signal from the wireless communication unit 32, and acquires image data included in the transmission signal. Then, the wireless communication unit 212 outputs the acquired image data to the data conversion unit 210. The data conversion unit 210 transmits the input image data to the controller 20 using the UVC end point.

  As described above, by providing the data processing device 21 capable of performing USB communication with the controller 20 and performing wireless communication with the wireless communication terminal 3 between the controller 20 and the wireless communication terminal 3, the controller 20 is provided. Can perform data communication with the wireless communication terminal 3 that cannot perform USB communication.

<About class request>
In the information processing system 1, the controller 20 can individually control each of the camera 33 and the microphone 34 using a class request specific to a device class. The class request is implemented by control transfer using the endpoint 0.

  Class requests can be broadly classified into two types, Get class requests and Set class requests. A Get class request is an acquisition request for a setting value of a USB device. In the present embodiment, the controller 20 outputs a Get class request indicating a setting value acquisition request of the camera 33 when it wants to acquire a setting value of the camera 33 that is a virtual USB device. Further, when the controller 20 wants to acquire a setting value of the microphone 34 that is a virtual USB device, the controller 20 outputs a Get class request indicating a setting value acquisition request of the microphone 34.

  On the other hand, the Set class request is a USB device setting request. In the present embodiment, the controller 20 outputs a Set class request including the setting value of the camera 33 when it is desired to set the camera 33 that is a virtual USB device. Further, when the controller 20 wants to set the microphone 34 which is a virtual USB device, the controller 20 outputs a Set class request including the setting value of the microphone 34.

  The data conversion unit 210 of the data processing device 21 includes, as functional blocks, a request processing unit 210a that executes a request processing task and a synchronization processing unit 210b that executes a synchronization task. In the request processing task, a class request from the controller 20 is processed. In the synchronization task, the setting value included in the Set class request from the controller 20 is stored in the storage unit 213 and the setting value is transmitted to the wireless communication terminal 3. In the synchronous task, the setting value in the storage unit 213 is read in response to the Get class request from the controller 20.

<Get class request sequence>
FIG. 3 is a diagram for explaining the operation of the information processing system 1 when the controller 20 outputs a Get class request. In the present embodiment, all setting values for the camera 33 and the microphone 34 are stored not only in the storage unit 36 of the wireless communication terminal 3 but also in the storage unit 213 of the data processing device 21 of the information processing device 2. . When a Get system class request is output from the controller 20, the data processing device 21 outputs a setting value corresponding to the Get system class request that exists in the storage unit 213 to the controller 20. The Get class request sequence will be described in detail below with reference to FIG.

  As illustrated in FIG. 3, the controller 20 transmits a Get class request indicating a setting value acquisition request for a virtual USB device whose setting value is to be acquired, to the data conversion unit 210 of the data processing device 21 by USB communication. To do. In the data conversion unit 210, the USB controller 211 receives a Get class request from the controller 20. When the USB controller 211 receives a Get class request, the request processing unit 210a notifies the synchronization processing unit 210b that the Get class request has been received. The synchronization processing unit 210b reads the setting value corresponding to the received Get class request from the storage unit 213 and passes it to the request processing unit 210a. For example, if the received Get class request indicates a request for obtaining the γ value of the camera 33, the synchronization processing unit 210b reads the γ value of the camera 33 from the storage unit 213 and passes it to the request processing unit 210a. The request processing unit 210 a transmits the received setting value from the USB controller 211 to the controller 20.

  As described above, in the data processing device 21 according to the present embodiment, the setting value of the wireless communication terminal 3, specifically, the setting value of the virtual USB device such as the camera 33 of the wireless communication terminal 3 is stored in the storage unit 213. ing. Therefore, in the data processing device 21, when the USB controller 211 functioning as a wired communication unit receives a setting value acquisition request from the controller 20, it can transmit the setting value in the storage unit 213. Therefore, the controller 20 can acquire a desired set value immediately after transmitting an acquisition request.

  On the other hand, unlike the present embodiment, when the set value of the virtual USB device is not stored in the storage unit 213, when a Get class request is transmitted from the controller 20, the wireless communication terminal 3 The set value in the storage unit 36 needs to be transmitted to the controller 20. In this case, it becomes difficult for the controller 20 to acquire a desired set value immediately. FIG. 4 is a diagram for explaining the operation of the information processing system 1 in this case.

  In the example shown in FIG. 4, when the controller 20 transmits a Get class request indicating a setting value acquisition request for a virtual device whose setting value is to be acquired, in the data processing device 21, the request processing unit 210 a The processing unit 210b is notified that the Get class request has been received. When notified that the Get class request has been received, the synchronization processing unit 210b transmits a setting value acquisition request corresponding to the Get class request to the wireless communication terminal 3 by wireless communication. In the wireless communication terminal 3 that has received the setting value acquisition request corresponding to the Get class request by the wireless communication unit 32, the terminal control unit 30 reads the setting value from the storage unit 36 and outputs the setting value to the wireless communication unit 32. The wireless communication unit 32 transmits the input set value to the data processing device 21 by wireless communication. In the data processing device 21, the synchronization processing unit 210b passes the setting value transmitted from the wireless communication terminal 3 to the request processing unit 210a. Upon receiving the setting value from the synchronization processing unit 210b, the request processing unit 210a transmits the setting value from the USB controller 211. Thereby, the controller 20 can acquire the setting value according to the transmitted Get class request.

  As described above, when the setting value is not stored in the data processing device 21, when the Get class request is transmitted from the controller 20, the setting value in the storage unit 36 of the wireless communication terminal 3 is read out. The data is transmitted to the data processing device 21 by wireless communication. Then, the data processing device 21 transmits the received setting value to the controller 20 by USB communication. Therefore, as compared with the present embodiment in which the data processing device 21 stores the setting value, the time required from when the controller 20 transmits the setting value acquisition request until the setting value is acquired becomes longer. Therefore, it becomes difficult for the controller 20 to acquire a desired set value immediately. Furthermore, since transmission of setting values from the wireless communication terminal 3 to the data processing device 21 uses wireless communication that is more unstable than wired communication, data is compared with the case where wired communication is used. The possibility that the processing device 21 can appropriately receive the setting value from the wireless communication terminal 3 is reduced. As a result, there is a low possibility that the controller 20 that has transmitted the acquisition request can appropriately acquire a desired set value.

  On the other hand, in the present embodiment, since the setting value is stored in the storage unit 213 of the data processing device 21, when a setting value acquisition request is transmitted from the controller 20, the wireless communication terminal 3. There is no need to read the set value in the storage unit 36. Therefore, the controller 20 can acquire a desired set value immediately. Furthermore, since wired communication is used to transmit the setting value from the data processing device 21 to the controller 20, the controller 20 is highly likely to be able to appropriately receive the setting value from the data processing device 21. Therefore, the controller 20 can reliably acquire a desired set value.

<Set class request sequence>
FIG. 5 is a diagram for explaining the operation of the information processing system 1 when the controller 20 outputs a Set class request. As illustrated in FIG. 5, the controller 20 transmits a Set class request (setting request) including the setting value of the virtual USB device to be set to the data conversion unit 210 of the data processing device 21 by USB communication. In the data conversion unit 210, the USB controller 211 receives a Set class request from the controller 20. When the USB controller 211 receives a Set class request, the request processing unit 210a notifies the synchronization processing unit 210b that the setting value included in the Set class request is stored in the storage unit 213. The synchronization processing unit 210b stores the setting value included in the received Set class request in the storage unit 213. At this time, if an old setting value of the same type exists in the storage unit 213, the synchronization processing unit 210b stores the new setting value included in the received Set class request instead of the old setting value. To do. Thereby, the set value in the storage unit 213 is updated.

  After storing the setting value in the storage unit 213, the synchronization processing unit 210b returns a response to the request processing unit 210a. When receiving a response from the synchronization processing unit 210b, the request processing unit 210a sets an event flag for instructing the synchronization processing unit 210b to transmit a setting request to the wireless communication terminal 3. Thereafter, the request processing unit 210 a transmits a response to the received Set class request from the USB controller 211 to the controller 20. Upon receiving a response to the transmitted Set class request, the controller 20 can transmit the next Set class request.

  When the request processing unit 210a transmits a response to the Set class request, the synchronization processing unit 210b requests the wireless communication terminal 3 to include a setting value included in the Set class request according to the event flag setting. Is transmitted from the wireless communication unit 212.

  In the wireless communication terminal 3, the wireless communication unit 32 receives the setting request transmitted from the wireless communication unit 212 and outputs it to the terminal control unit 30. The terminal control unit 30 stores the setting value included in the input setting request in the storage unit 36. At this time, if an old setting value of the same type exists in the storage unit 36, the terminal control unit 30 stores a new setting value included in the input setting request instead of the old setting value. Thereby, the set value in the storage unit 36 is updated.

  In this way, the setting value included in the Set class request is stored in the storage unit 213 of the data processing device 21 and is also stored in the storage unit 36 of the wireless communication terminal 3, thereby setting the setting value in the storage unit 213, The set value in the storage unit 36 is synchronized.

  In the wireless communication terminal 3, the terminal control unit 30 sets a virtual USB device corresponding to the setting value based on the setting value stored in the storage unit 36. If the Set class request transmitted from the controller 20 is, for example, a Set class request including the setting value of the volume of the microphone 34, the setting value of the volume of the microphone 34 is stored in the storage unit 36 of the wireless communication terminal 3. Remembered. The terminal control unit 30 sets the volume of the microphone 34 so that the volume of the microphone 34 becomes the setting value stored in the storage unit 36.

  When the terminal control unit 30 sets a virtual USB device based on the setting value stored in the storage unit 36, the terminal control unit 30 causes the wireless communication unit 32 to transmit a positive response to the setting request from the data processing device 21. In addition, if the virtual USB device cannot be set based on the setting value for some reason, such as the setting value stored in the storage unit 36 is abnormal, the terminal control unit 30 receives a setting request from the data processing device 21. To the wireless communication unit 32. The response (positive response or negative response) transmitted from the wireless communication unit 32 is received by the wireless communication unit 212 of the data processing device 21. Thereby, the synchronization processing unit 210b can grasp whether or not the virtual USB device is set based on the setting value included in the setting request transmitted by itself.

  When the controller 20 receives the response to the transmitted Set class request and then transmits the next Set class request, the information processing system 1 thereafter operates in the same manner as described above.

  As described above, in the data processing device 21 according to the present embodiment, the USB controller 211 receives the response to the setting request from the data processing device 21 transmitted from the wireless communication terminal 3 by the wireless communication unit 212. Before that, a response to the Set class request (setting request) from the controller 20 is transmitted to the controller 20. Therefore, the controller 20 can immediately receive a response to the transmitted setting request of the wireless communication terminal 3. Therefore, the controller 20 can immediately transmit the next setting request for the wireless communication terminal 3. That is, the controller 20 can perform the next setting immediately after setting the wireless communication terminal 3. As a result, the real-time property of control for the wireless communication terminal 3 is improved.

  In contrast, as shown in FIG. 6, after the USB controller 211 receives a response to the setting request from the data processing device 21 transmitted from the wireless communication terminal 3, the controller 20 When the controller 20 transmits a response to the Set class request from the controller 20, it is difficult for the controller 20 to immediately receive the response to the transmitted setting request. Therefore, it becomes difficult for the controller 20 to immediately transmit the next setting request. As a result, it is difficult to improve the real-time control of the wireless communication terminal 3.

  Furthermore, since the response from the wireless communication terminal 3 is transmitted to the data processing device 21 by wireless communication, which is more unstable than wired communication, the data processing device 21 may not receive a response from the wireless communication terminal 3 There is sex. Therefore, when the USB controller 211 transmits a response to the Set class request from the controller 20 to the controller 20 after the wireless communication unit 212 receives the response transmitted from the wireless communication terminal 3, the controller 20 There is a possibility that a response to the transmitted Set class request cannot be received. When the controller 20 cannot receive a response to the Set class request until the predetermined time has elapsed since the transmission of the Set class request (time over), the controller 20 does not wait until the next Set system has passed. Since the class request can be transmitted, it becomes difficult for the controller 20 to immediately transmit the next setting request for the wireless communication terminal 3.

  In the present embodiment, the USB controller 211 receives a Set class request from the controller 20 before the wireless communication unit 212 receives a response to the setting request transmitted from the wireless communication terminal 3 from the data processing device 21. Is transmitted to the controller 20, the controller 20 can receive a response to the Set class request even if the data processing device 21 does not receive a response from the wireless communication terminal 3. . Furthermore, since the response from the data processing device 21 is transmitted to the controller 20 by wired communication that is more stable than wireless communication, the controller 20 can reliably receive the response. Therefore, the controller 20 can perform the next setting immediately after setting the wireless communication terminal 3, and as a result, the real-time property of the control for the wireless communication terminal 3 is improved.

<Various modifications>
<First Modification>
The virtual USB device does not update the setting value in the storage unit 36 in response to a setting request from the controller 20, but automatically updates the setting value in the storage unit 36 and automatically sets its own setting. May be updated. For example, the camera 33 may automatically adjust the exposure time or automatically adjust the white balance setting value. In such a case, when the wireless communication terminal 3 transmits a response to the setting request from the data processing device 21, it automatically updates the setting value in the storage unit 36 (the automatically adjusted setting value). Are all transmitted to the data processing device 21. Then, the data processing device 21 stores each setting value received from the wireless communication terminal 3 in the storage unit 213 instead of the old setting value of the same type. Thereby, even when the wireless communication terminal 3 automatically changes the setting value in the storage unit 36, the setting value in the storage unit 36 of the wireless communication terminal 3 and the storage unit 213 of the data processing device 21 are stored. Can be synchronized with the set value. Whether or not the virtual USB device automatically updates the setting value in the storage unit 36 is determined by the setting value included in the Set class request transmitted from the controller 20.

<Second Modification>
In the data processing device 21, the wireless communication unit 212 may repeatedly transmit a setting request including the setting value in the storage unit 213 to the wireless communication terminal 3 while the USB controller 211 does not receive a Set class request. FIG. 7 shows the state.

  As shown in FIG. 7, in the data processing device 21 according to the present modification, when a response to the setting request transmitted to the wireless communication terminal 3 is received by the wireless communication unit 212, the event occurs after T seconds from the reception timing. A flag is set. T is set to 1 second, for example. When the event flag is set, the synchronization processing unit 210b transmits a setting request including all setting values in the storage unit 213 from the wireless communication unit 212.

  The setting request transmitted from the wireless communication unit 212 is received by the wireless communication unit 32. The wireless communication unit 32 outputs the received setting request to the terminal control unit 30. The terminal control unit 30 stores each setting value included in the input setting request in the storage unit 36. Then, the terminal control unit 30 sets the wireless communication terminal 3, specifically the virtual USB device, based on each setting value stored in the storage unit 36.

  When the terminal control unit 30 sets the virtual USB device based on each setting value stored in the storage unit 36, the terminal control unit 30 causes the wireless communication unit 32 to transmit a positive response to the setting request from the data processing device 21. In addition, when the terminal control unit 30 cannot set the virtual USB device based on the setting value stored in the storage unit 36, the terminal control unit 30 responds to the setting request from the data processing device 21 together with the specifying information for specifying the setting value. A negative response is transmitted to the wireless communication unit 32. The response and the specific information transmitted from the wireless communication unit 32 are received by the wireless communication unit 212 of the data processing device 21.

  In the data processing device 21, when a response to the setting request transmitted to the wireless communication terminal 3 is received by the wireless communication unit 212, an event flag is set T seconds after the reception timing. When the event flag is set, the synchronization processing unit 210b transmits a setting request including all setting values in the storage unit 213 from the wireless communication unit 212. Thereafter, while the Set class request is not transmitted from the controller 20, the information processing system 1 operates in the same manner.

  As described above, the wireless communication unit 212 repeatedly transmits the setting request including the setting value in the storage unit 213 to the wireless communication terminal 3 while the USB controller 211 does not receive the Set class request, thereby the data processing device 21. Even when the setting value is transmitted to the wireless communication terminal 3 by wireless communication with unstable communication, the setting value transmitted from the controller 20 can be reliably delivered to the wireless communication terminal 3. Therefore, setting according to the instruction from the controller 20 can be reliably performed on the wireless communication terminal 3.

<Third Modification>
In the data processing device 21, when the wireless communication unit 212 returns after the wireless connection with the wireless communication terminal 3 is disconnected, the wireless communication unit 212 transmits a setting request including the setting value in the storage unit 213 to the wireless communication terminal 3. May be. FIG. 8 shows the state.

  For example, when the wireless communication terminal 3 is carried away from the information processing device 2 by the user, the wireless connection between the wireless communication unit 212 of the data processing device 21 and the wireless communication unit 32 of the wireless communication terminal 3 is established. Disconnected. Further, when the power of the wireless communication terminal 3 is turned off, the wireless connection between the wireless communication unit 212 of the data processing device 21 and the wireless communication unit 32 of the wireless communication terminal 3 is disconnected.

  When the controller 20 transmits a Set class request including the setting value of the virtual USB device to be set to the data processing device 21 while the wireless connection between the wireless communication unit 212 and the wireless communication unit 32 is disconnected. In the data processing device 21, as described above, the request processing unit 210a notifies the synchronization processing unit 210b that the setting value included in the Set class request is stored in the storage unit 213. The synchronization processing unit 210b stores (updates) the setting value included in the received Set class request in the storage unit 213. After storing the setting value in the storage unit 213, the synchronization processing unit 210b returns a response to the request processing unit 210a. When receiving a response from the synchronization processing unit 210b, the request processing unit 210a sets an event flag. Thereafter, the request processing unit 210 a transmits a response to the received Set class request from the USB controller 211 to the controller 20.

  When the request processing unit 210a transmits a response to the Set class request, the synchronization processing unit 210b confirms that the event flag is set, but the wireless connection between the wireless communication unit 212 and the wireless communication unit 32 is performed. Is disconnected, the setting request including the setting value included in the received Set class request is not transmitted from the wireless communication unit 212.

  Thereafter, when the wireless communication terminal 3 that has been separated from the information processing device 2 approaches the information processing device 2 and the wireless connection between the wireless communication unit 212 and the wireless communication unit 32 is restored, an event flag is set, The synchronization processing unit 210b transmits a setting request including all setting values in the storage unit 213 from the wireless communication unit 212.

  The setting request transmitted from the wireless communication unit 212 is received by the wireless communication unit 32. The wireless communication unit 32 outputs the received setting request to the terminal control unit 30. The terminal control unit 30 stores each setting value included in the input setting request in the storage unit 36. Then, the terminal control unit 30 sets the wireless communication terminal 3, specifically the virtual USB device, based on each setting value stored in the storage unit 36.

  When the terminal control unit 30 sets the virtual USB device based on each setting value stored in the storage unit 36, the terminal control unit 30 causes the wireless communication unit 32 to transmit a positive response to the setting request from the data processing device 21. In addition, when the terminal control unit 30 cannot set the virtual USB device based on the setting value stored in the storage unit 36, the terminal control unit 30 responds to the setting request from the data processing device 21 together with the specifying information for specifying the setting value. A negative response is transmitted to the wireless communication unit 32. The response and the specific information transmitted from the wireless communication unit 32 are received by the wireless communication unit 212 of the data processing device 21.

  As described above, in this modification, when the wireless communication unit 212 returns after the wireless connection with the wireless communication terminal 3 is disconnected, the wireless communication terminal 3 issues a setting request including the setting value in the storage unit 213. Is sending to. Accordingly, even when the setting value in the storage unit 213 is updated while the wireless connection between the wireless communication unit 212 and the wireless communication terminal 3 is disconnected, the wireless connection is restored. The latest set value can be transmitted to the wireless communication terminal 3. Therefore, it is possible to appropriately set the wireless communication terminal 3 according to the instruction from the controller 20.

  When the wireless connection between the wireless communication unit 212 and the wireless communication terminal 3 is restored, the data processing device 21 transmits a setting request including the setting value in the storage unit 213, and then sends a Set class request. While not received, the setting request including the setting value in the storage unit 213 may be repeatedly transmitted to the wireless communication terminal 3 as in the second modified example.

<Fourth Modification>
In the above example, the data processing device 21 has sent a response to the Set class request to the controller 20 before sending the setting request to the wireless communication terminal 3, but as shown in FIG. A response to the Set class request may be transmitted to the controller 20 after the setting request is transmitted to the communication terminal 3 and before the response from the wireless communication terminal 3 is received. Even in this case, as shown in FIG. 6 described above, the data processing device 21 receives a response from the wireless communication terminal 3 and then transmits a response to the Set class request to the controller 20. Then, the controller 20 can immediately receive a response to the transmitted Set class request. Therefore, the next setting can be performed immediately after setting the wireless communication terminal 3. As a result, the real-time property of control for the wireless communication terminal 3 is improved.

  Note that it is more likely that the data processing device 21 transmits a response to the Set class request before transmitting the setting request to the wireless communication terminal 3 after transmitting the setting request to the wireless communication terminal 3. The controller 20 can immediately receive a response to the transmitted Set class request rather than transmitting a response to the class request. Accordingly, the former can improve the real-time control of the wireless communication terminal 3 than the latter.

<Fifth Modification>
When the controller 20 transmits the next Set class request immediately after receiving a response to the Set class request, as shown in FIG. 10, the data processing device 21 sets the Set class request at a certain timing. In some cases, at least one new Set class request may be received before a setting request is transmitted to the wireless communication terminal 3. In the example of FIG. 10, after receiving the Set class request RQ1 at a certain timing, the data processing device 21 sends two new Set class requests RQ2 and RQ3 until a setting request is transmitted to the wireless communication terminal 3. Receiving. Here, the Set type class requests RQ1 to RQ3 include the same type of setting values. For example, the Set system class requests RQ1 to RQ3 include white balance setting values for the camera 33. Alternatively, the Set system class requests RQ1 to RQ3 include, for example, a γ value for the camera 33. In such a case, the data processing device 21 sends a setting request including only the setting value included in the latest Set request RQ3 among the setting values included in the received Set related class requests RQ1 to RQ3 to the wireless communication terminal. 3 may be transmitted. Hereinafter, the example of FIG. 10 will be described in detail.

  When the controller 20 transmits the Set class request RQ1 to the data processing device 21, in the data processing device 21, the request processing unit 210a stores the setting value included in the Set type class request RQ1 in the synchronization processing unit 210b. Notification of storage in the unit 213. The synchronization processing unit 210b stores the setting value included in the received Set class request RQ1 in the storage unit 213. At this time, if an old setting value of the same type as the setting value included in the received Set class request RQ1 exists in the storage unit 213, the synchronization processing unit 210b receives the received setting value instead of the old setting value. The new set value included in the set system class request RQ1 is stored.

  After storing the setting value in the storage unit 213, the synchronization processing unit 210b returns a response to the request processing unit 210a. When receiving a response from the synchronization processing unit 210b, the request processing unit 210a sets an event flag. Thereafter, the request processing unit 210a transmits a response to the received Set class request RQ1 from the USB controller 211 to the controller 20.

  After the request processing unit 210a transmits a response to the Set class request RQ1, before the synchronization processing unit 210b transmits a setting request from the wireless communication unit 212 according to the event flag setting, the data processing device 21 sets the next Set class. When receiving the request RQ2 from the controller 20, the request processing unit 210a notifies the synchronization processing unit 210b that the setting value included in the Set class request RQ2 is stored in the storage unit 213. The synchronization processing unit 210b stores the setting value included in the received Set class request RQ2 in the storage unit 213. At this time, the synchronization processing unit 210b stores the setting value included in the received Set class request RQ2 in the storage unit 213 instead of the setting value included in the Set class request RQ1 in the storage unit 213. That is, the synchronization processing unit 210b updates the setting value of the same type in the storage unit 213 using the setting value included in the received Set class request RQ2. When the setting value in the storage unit 213 is updated, the synchronization processing unit 210b returns a response to the request processing unit 210a. When receiving a response from the synchronization processing unit 210b, the request processing unit 210a sets an event flag. Thereafter, the request processing unit 210a transmits a response to the Set class request RQ2 from the USB controller 211 to the controller 20.

  When the data processing device 21 further receives the next Set class request RQ3 from the controller 20 after transmitting a response to the Set class request RQ2 and before transmitting a setting request to the wireless communication terminal 3, the request processing unit 210a Notifies the synchronization processing unit 210b that the setting value included in the Set class request RQ3 is stored in the storage unit 213. The synchronization processing unit 210b stores the setting value included in the received Set class request RQ3 in the storage unit 213. At this time, the synchronization processing unit 210b updates the same type of setting values in the storage unit 213 using the setting values included in the received Set class request RQ3. When the setting value in the storage unit 213 is updated, the synchronization processing unit 210b returns a response to the request processing unit 210a. When receiving a response from the synchronization processing unit 210b, the request processing unit 210a sets an event flag, and then transmits a response to the Set class request RQ3 from the USB controller 211.

  After the data processing device 21 transmits a response to the Set system class request RQ3, if the next Set system class request is not received from the controller 20, the synchronization processing unit 210b sets the wireless communication terminal according to the event flag setting. 3, the setting request including the setting value included in the Set class request RQ 3 in the storage unit 213 is transmitted from the wireless communication unit 212. Thereafter, the information processing system 1 operates in the same manner.

  As described above, when the data processing device 21 receives a Set class request at a certain timing and transmits a setting request to the wireless communication terminal 3, it receives at least one new Set class request. By transmitting a setting request including only the latest setting value among the setting values included in the Set class request received at the certain timing and the at least one new Set class request, to the wireless communication terminal 3 On the other hand, the latest setting value can be passed. Therefore, the wireless communication terminal 3 can be set based on the latest set value from the controller 20.

  In the case where the data processing device 21 receives at least one new Set system class request after receiving the Set system class request at a certain timing and before transmitting a setting request to the wireless communication terminal 3, In contrast, a setting request including all of the setting values included in the Set class request received at the certain timing and the at least one new Set class request may be transmitted to the wireless communication terminal 3. In the example of FIG. 10, the data processing device 21 may transmit a setting request including all setting values included in the Set class requests RQ1 to RQ3 to the wireless communication terminal 3. In this case, the storage unit 213 stores all set values included in the Set class request received at the certain timing and the at least one new Set class request. In the example of FIG. 10, the setting values included in the Set class requests RQ1 to RQ3 are stored in the storage unit 213 independently.

  As described above, the data processing device 21 transmits the setting request including all the setting values included in the Set class requests RQ1 to RQ3 to the wireless communication terminal 3, so that the wireless communication terminal 3 receives the Set class request RQ1. Based on each of the setting values included in RQ3, virtual USB devices can be set in order. Therefore, the wireless communication terminal 3 can gradually change the settings of the virtual USB device based on the setting values included in the Set class requests RQ1 to RQ3. For example, when the γ value of the camera 33 is included in the Set class requests RQ1 to RQ3 and the γ value included in the Set class requests RQ1 to RQ3 is gradually changing, the Set class requests RQ1 to RQ3 By setting the camera 33 based on the included γ value, it is possible to execute fade-in or fade-out in the imaging of the camera 33. In this case, each of the setting values included in the Set class requests RQ1 to RQ3 is also stored independently in the storage unit 36 of the wireless communication terminal 3.

<Sixth Modification>
While the wireless connection between the wireless communication unit 212 and the wireless communication terminal 3 is disconnected, as shown in FIG. 11, the data processing device 21 may receive a plurality of Set class requests. . In the example of FIG. 11, the data processing device 21 has received three Set class requests RQ1 to RQ3. In such a case, when the wireless connection between the wireless communication unit 212 and the wireless communication terminal 3 is restored, the data processing device 21 selects one of the set values included in the plurality of Set class requests. A setting request including only the latest setting value may be transmitted to the wireless communication terminal. In the example of FIG. 11, the data processing device 21 transmits a setting request including only the setting value included in the Set class request RQ3 among the setting values included in the Set class request RQ1 to RQ3 to the wireless communication terminal. Also good. Hereinafter, the example of FIG. 11 will be described in detail.

  While the wireless connection between the wireless communication unit 212 of the data processing device 21 and the wireless communication unit 32 of the wireless communication terminal 3 is disconnected, the controller 20 transmits a Set class request RQ1 to the data processing device 21. Then, the data processing device 21 operates in the same manner as in the example of FIG.

  After the request processing unit 210a transmits a response to the Set type class request RQ1, when the data processing device 21 receives the next Set type class request RQ2 from the controller 20, the data processing device 21 is the same as the above example of FIG. To work. After the request processing unit 210a transmits a response to the Set class request RQ2, when the data processing device 21 receives the next Set class request RQ3 from the controller 20, the data processing device 21 is the same as the example in FIG. To work.

  When the wireless connection between the wireless communication unit 212 and the wireless communication unit 32 is restored after the request processing unit 210a transmits a response to the Set class request RQ3, the event flag is set, and the synchronization processing unit 210b stores A setting request including all setting values in the unit 213 is transmitted from the wireless communication unit 212. At this time, only the latest setting value, that is, the setting value included in the last received Set class request RQ3 among the setting values included in the Set class requests RQ1 to RQ3 is stored in the storage unit 213. Therefore, a setting request including only the setting value included in the Set class request RQ3 among the setting values included in the Set class request RQ1 to RQ3 is transmitted to the wireless communication terminal 3.

  As described above, the data processing device 21 is the latest of the setting values included in the plurality of Set class requests received while the wireless connection between the wireless communication unit 212 and the wireless communication unit 32 is disconnected. By transmitting a setting request including only the setting value, the latest setting value can be passed to the wireless communication terminal 3. Therefore, the wireless communication terminal 3 can be set based on the latest set value from the controller 20.

  When the data processing device 21 receives a plurality of Set class requests while the wireless connection between the wireless communication unit 212 and the wireless communication unit 32 is disconnected, the data processing device 21 receives the plurality of Set class classes. Each of the setting values included in the request may be stored in the storage unit 213 independently. In the example of FIG. 11, the data processing device 21 may store the setting values included in the Set class requests RQ <b> 1 to RQ <b> 3 independently in the storage unit 213. In this case, when the wireless connection between the wireless communication unit 212 and the wireless communication unit 32 is restored, a setting request including all of the setting values in the storage unit 213 is transmitted to the wireless communication terminal 3, Unlike the above, the setting request including all the setting values included in the plurality of Set class requests received while the wireless connection between the wireless communication unit 212 and the wireless communication unit 32 is disconnected is a wireless communication terminal. 3 is transmitted. In the example of FIG. 11, a setting request including all setting values included in the Set class requests RQ <b> 1 to RQ <b> 3 is transmitted to the wireless communication terminal 3.

  In this way, by storing all the setting values included in the Set class requests RQ1 to RQ3 in the storage unit 213, in other words, the latest values for the same type of setting values (in the Set class request RQ3). Wireless communication between the wireless communication unit 212 and the wireless communication unit 32 by storing the setting value included) and the value before the latest value (the set value included in the Set class request RQ1, RQ2). When the connection is restored, the latest value and the previous value can be transmitted to the wireless communication terminal 3. Therefore, the wireless communication terminal 3 can set virtual USB devices in order based on the previous value and the latest value of the setting value. Therefore, similarly to the above, the wireless communication terminal 3 can gradually change the setting of the virtual USB device.

  In the above example, the storage unit 36 is provided in the wireless communication terminal 3, but the storage unit 36 is not necessary when each of the camera 33 and the microphone 34 can hold a setting value related to itself.

  The present invention can also be applied to communication systems other than the information processing system 1 described above, such as a monitoring system and a videophone system. FIG. 12 is a block diagram showing a monitoring system 1A to which the present invention is applied.

  The monitoring system 1A shown in FIG. 12 includes a personal computer 300, a communication device 310, and a camera device 320. The camera device 320 includes a camera 321 and a wireless device 322. The personal computer 300 and the communication device 310 perform wired communication based on, for example, USB. The personal computer 300 functions as a USB host, and the communication device 310 functions as a USB device. The communication device 310 and the camera device 320 perform wireless communication based on, for example, Wi-Fi. In the monitoring system 1A, the communication device 310 functions as a communication mediating device that mediates communication between the personal computer 300 and the camera device 320. The personal computer 300 controls the camera device 320 through the communication device 310.

  The camera 321 captures an image and outputs image data indicating the image. The wireless device 322 wirelessly transmits the image data output from the camera 321 to the communication device 310. The communication device 310 transmits the image data received from the wireless device 322 to the personal computer 300 by USB communication. The personal computer 300 is connected to the monitoring device through a network such as the Internet. The personal computer 300 transmits the received image data to the monitoring device. The monitoring device displays the received image data.

  In the monitoring system 1A, the personal computer 300 corresponds to the controller 20, the communication device 310 corresponds to the data processing device 21, and the camera device 320 corresponds to the wireless communication terminal 3. In the monitoring system 1A, the camera 321 is controlled by the personal computer 300 as a virtual USB device in the same manner as described above.

  As mentioned above, although the communication system 1 was demonstrated in detail, above-described description is an illustration in all the phases, Comprising: This invention is not limited to it. The various modifications described above can be applied in combination as long as they do not contradict each other. And it is understood that the countless modification which is not illustrated can be assumed without deviating from the scope of the present invention.

1 Communication system (information processing system)
1A Monitoring System 3 Wireless Communication Terminal 20 Controller 21 Data Processing Device 33 Camera 34 Microphone 35 Input Unit 211 USB Controller 212 Wireless Communication Unit 213 Storage Unit 300 Personal Computer 310 Communication Device 320 Camera Device

Claims (13)

A communication mediating device that performs wired communication with a first device and wirelessly communicates with a second device,
A wired communication unit for performing wired communication with the first device;
A wireless communication unit that performs wireless communication with the second device; and a storage unit that stores a setting value of the second device received by the wired communication unit from the first device;
The first device transmits a first setting request including the setting value;
The wireless communication unit transmits a second setting request including the setting value included in the first setting request received by the wired communication unit to the second device;
The wired communication unit transmits a response to the first setting request to the first device before a response to the second setting request transmitted from the second device is received by the wireless communication unit. Communication mediation device. The communication mediating apparatus according to claim 1,
The wired communication unit is a communication mediating device that transmits a response to the first setting request to the first device before the second setting request is transmitted from the wireless communication unit. The communication mediation apparatus according to claim 2, wherein
The wireless communication unit receives at least one new first setting request from the wired communication unit until the second setting request is transmitted after the first setting request is received at a certain timing. The first setting request received at the certain timing and the setting value included in the at least one new first setting request includes only the latest setting value. 2. A communication mediating apparatus that transmits a setting request. The communication mediation apparatus according to claim 2, wherein
The wireless communication unit receives at least one new first setting request from the wired communication unit until the second setting request is transmitted after the first setting request is received at a certain timing. The second setting request including the setting value included in the first setting request received at the certain timing and the at least one new first setting request. apparatus. The communication mediating apparatus according to any one of claims 1 to 4, wherein
When the wired communication unit receives the setting value acquisition request from the first device, the wired communication unit transmits the setting value in the storage unit to the first device. The communication mediating apparatus according to any one of claims 1 to 5, wherein
The wireless communication unit is a communication mediating device that repeatedly transmits a third setting request including the setting value in the storage unit to the second device while the wired communication unit does not receive the first setting request. The communication mediating apparatus according to any one of claims 1 to 6,
The wireless communication unit transmits a fourth setting request including the setting value in the storage unit to the second device when the wireless communication unit returns after the wireless connection with the second device is disconnected. . The communication mediating apparatus according to claim 7, wherein
The storage unit stores a latest value and a value before the latest value for the set value,
The wireless communication unit includes a latest value for the set value and a value before the latest value in the storage unit when the wireless connection with the second device is restored after being disconnected. A communication mediating apparatus that transmits the fourth setting request to the second apparatus. The communication mediating apparatus according to any one of claims 1 to 8,
When the second device transmits a response to the second setting request, the second device transmits the automatically updated setting value;
The storage unit is a communication mediation device that stores the setting value transmitted from the second device. The communication mediating apparatus according to any one of claims 1 to 9, wherein
The second device has a plurality of control target devices,
The first device transmits, for each of the plurality of control target devices, the first setting request including a setting value of the control target device,
The said storage part is a communication mediation apparatus which memorize | stores the setting value about each of these control object apparatus which the said wire communication part receives. The communication mediating apparatus according to claim 10, wherein
The plurality of control target devices are communication mediating devices including at least one of a camera and a microphone. A first device;
A second device;
A communication mediating device that performs wired communication with the first device and wirelessly communicates with the second device;
The first device transmits a first setting request including a setting value of the second device to the communication mediating device;
The communication mediating apparatus transmits a second setting request including the setting value included in the first setting request received from the first apparatus to the second apparatus;
The second device transmits a response to the second setting request received from the communication mediation device to the communication mediation device;
The communication mediating device transmits a response to the first setting request to the first device before receiving a response to the second setting request from the second device. A communication method in a communication mediating apparatus that performs wired communication with a first device and performs wireless communication with a second device,
(A) receiving a first setting request including a setting value of the second device from the first device;
(B) transmitting a second setting request including the setting value included in the first setting request received in the step (a) to the second device;
(C) receiving a response to the second setting request from the second device;
(D) A step of transmitting a response to the first setting request to the first device before the step (c).

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