JP2018129647A - Remote control device and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to establish a network connection between a target projector and a wireless terminal only by a user bringing a wireless terminal which the user wishes to establish a network connection with a projector close to a remote controller corresponding to the projector.SOLUTION: A system includes a first device, a second device, and a third device. When the first device and the second device communicate with each other, the first device and the third device communicate with each other and the second device and the third device establish communication connection.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a remote control device or system capable of remotely operating an electronic device.

  Electronic devices that are installed and used such as projectors are now equipped with a so-called WiFi communication function. Also, wireless terminals compatible with WiFi represented by smartphones have become familiar. Such a wireless terminal can implement various functions by introducing various applications. Also, applications that remotely control target electronic devices from wireless terminals have come to be found.

  Using this wireless communication, it has become possible to establish wireless communication with a nearby wireless terminal and remotely control a projector or the like, or to send an image from a wireless terminal and project it. Currently, when connecting a wireless terminal and a projector, in order to distinguish the target projector from a plurality of projectors, an ID or passcode for connecting to the projector is input to each projector in advance. A method has been devised in which a user recognizes an ID or passcode projected from each projector, and inputs and sets the ID or passcode to an application running on a wireless terminal.

JP 06-253370 A

  However, the procedure until the first wireless communication is established is not so easy. In particular, in the case of a projector, the apparatus main body may be installed in a high place such as a ceiling, and it may not be easy to change the setting. In addition, when the projector ID or passcode is displayed during operation, there are problems such as being recognized by many people.

  The present invention is a system including a first device, a second device, and a third device, and the first device and the third device are connected by the communication between the first device and the second device. Communicating to establish a communication connection between the second device and the third device.

  According to the present invention, a user can establish a network connection between a target projector and a wireless terminal only by bringing a wireless terminal that wants to establish a network connection with the projector close to a remote control corresponding to the projector.

Block diagram showing the configuration of the first system Sequence diagram of the first system Block diagram showing the configuration of the second system Sequence diagram of the second system

[Example 1]
A first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a block diagram showing the configuration of the first system. In FIG. 1, 110 is an infrared remote controller, 111 is a remote control operation unit, 112 is a remote control signal transmission unit, 113 is an infrared LED, 115 is an NFC communication unit, and 116 is a connection information storage unit.

  The remote control signal transmission unit 112 monitors the operation of the remote control operation unit 111. When the operation is detected, the remote control signal transmission unit 112 generates a remote control signal corresponding to the operation, and drives the infrared LED 113 based on the generated signal. The NFC communication unit 115 is a side that receives power, and communicates with the device by using power from a nearby device. The connection information storage unit 116 is a small-capacity nonvolatile memory and stores connection information necessary for connection in advance. Here, the connection information includes at least information for generating identification information (SSID) and a passcode.

  In FIG. 1, 120 is a projector, 121 is a remote control receiving unit, 122 is a connection information extracting unit, and 123 is a wireless transmitting / receiving unit.

  In the present description, the part related to the projection from the input of the video is omitted because it is not related to the present invention. The remote control receiver 121 receives an infrared remote control signal sent from the infrared remote controller 110. The connection information extraction unit 122 extracts a signal necessary for wireless network connection from the received infrared remote control signal. The wireless transmission / reception unit 123 is a part that communicates with a wireless terminal described later.

  In FIG. 1, 130 is a wireless terminal, 131 is an NFC communication unit, 132 is a connection information extraction unit, and 133 is a wireless transmission / reception unit. The NFC communication unit 131 is a side that supplies power, and performs near field communication with the infrared remote controller 110. The connection information extraction unit 132 extracts a signal necessary for wireless network connection from the received proximity communication signal. The wireless transmission / reception unit 133 is a part that communicates with the wireless transmission / reception unit 123 of the projector 120 based on a signal necessary for connection extracted by the connection information extraction unit 132.

  FIG. 2 is a sequence diagram of the first system. In FIG. 2, 210 indicates the operation of the infrared remote controller 110, 220 indicates the operation of the projector 120, and 230 indicates the operation of the wireless terminal 130. The operation 210 of the infrared remote controller, the operation 220 of the projector, and the operation 230 of the wireless terminal until wireless communication between the projector 120 and the wireless terminal 130 is established will be described with reference to FIG.

  First, the user brings the infrared remote controller 110 and the wireless terminal 130 close to each other (S250). When the NFC communication unit 131 of the wireless terminal 130 detects the approach of the NFC communication unit 115 of the infrared remote controller 110, the NFC communication unit 131 supplies power to the NFC communication unit 115. Then, the NFC communication unit 131 of the wireless terminal 130 requests connection information from the NFC communication unit 115 of the infrared remote controller 110 (S251).

  The NFC communication unit 115 of the infrared remote controller 110 starts operation by receiving power from the outside, acquires connection information from the connection information storage unit 116, and transmits the connection information to the outside (S252). Also, the NFC communication unit 115 sends a connection information transmission command for transmitting connection information to the remote control signal transmission unit 112 (S253). When receiving the connection information transmission command, the remote control signal transmission unit 112 acquires connection information from the connection information storage unit 116, generates a remote control signal based on the connection information, and generates an infrared ray based on the generated signal. The LED 113 is driven (S254).

  Then, the remote control reception unit 121 of the projector 120 receives a remote control signal based on connection information emitted from the infrared LED 113. The connection information extraction unit 122 extracts connection information from the remote control signal received by the remote control reception unit 121 (S260). Then, the wireless transmission / reception unit 123 sets up wireless communication based on the connection information extracted by the connection information extraction unit 132 (S261).

  On the other hand, the NFC communication unit 131 of the wireless terminal 130 outputs the reception information received from the NFC communication unit 115 of the infrared remote controller 110. The connection information extraction unit 132 extracts connection information from the reception information output by the NFC communication unit 131 (S271). Then, the wireless transmission / reception unit 133 attempts to establish wireless communication based on the connection information extracted by the connection information extraction unit 132 (S272). Then, since the wireless transmission / reception unit 123 of the projector 120 and the wireless transmission / reception unit 133 of the wireless terminal 130 perform initialization and connection operation based on the same connection information, a connection can be established without being confused (S299).

  Incidentally, the connection information stored in the connection information storage unit 116 is not necessarily fixed. For example, by including the remote control ID given to the infrared remote controller 110 in the connection information, collision of nearby identification information (SSID) can be prevented. In addition, every time communication is performed by the NFC communication unit 115 of the infrared remote controller 110, the pass code of the connection information can be changed to improve security.

[Example 2]
A second embodiment of the present invention will be described in detail with reference to FIGS. FIG. 3 is a block diagram showing the configuration of the second system. In FIG. 3, 310 is an infrared remote controller, 311 is a remote control operation unit, 312 is a remote control signal transmission unit, 313 is an infrared LED, and 315 is an NFC communication unit. The remote control signal transmission unit 312 monitors the operation of the remote control operation unit 311. When the operation is detected, the remote control signal transmission unit 312 generates a remote control signal corresponding to the operation, and drives the infrared LED 313 based on the generated signal. The NFC communication unit 315 is a side that receives power, and communicates with the device by using power from a nearby device.

  In FIG. 3, reference numeral 320 denotes a projector, 321 denotes a remote control reception unit, 322 denotes a connection information extraction unit, and 323 denotes a wireless transmission / reception unit.

  In the present description, the part related to the projection from the input of the video is omitted because it is not related to the present invention. The remote control receiving unit 321 receives an infrared remote control signal sent from the infrared remote control 310. The connection information extraction unit 322 extracts a signal necessary for wireless network connection from the received infrared remote control signal. The wireless transmission / reception unit 323 is a part that communicates with a wireless terminal described later.

  In FIG. 3, 330 is a wireless terminal, 331 is a connection information storage unit, 332 is an NFC communication unit, and 333 is a wireless transmission / reception unit. The connection information storage unit 331 stores connection information necessary for connection in advance. Here, the connection information includes at least information for generating identification information (SSID) and a passcode. The NFC communication unit 332 is a power supply side, and performs proximity communication with the infrared remote controller 110. The wireless transmission / reception unit 333 is a part that communicates with the wireless transmission / reception unit 323 of the projector 320 based on information necessary for connection held in the connection information storage unit 331.

  FIG. 4 is a sequence diagram of the second system. In FIG. 4, 410 indicates the operation of the infrared remote controller 310, 420 indicates the operation of the projector 320, and 430 indicates the operation of the wireless terminal 330. An infrared remote controller operation 410, a projector operation 420, and a wireless terminal operation 430 until wireless communication between the projector 320 and the wireless terminal 330 is established will be described with reference to FIG. First, the user brings the infrared remote controller 310 and the wireless terminal 330 close to each other (S450).

  When the NFC communication unit 332 of the wireless terminal 330 detects the approach of the NFC communication unit 315 of the infrared remote controller 310, the NFC communication unit 332 supplies power to the NFC communication unit 315. Then, the NFC communication unit 332 of the wireless terminal 330 transmits the connection information held in the connection information storage unit 331 to the NFC communication unit 315 of the infrared remote controller 310 (S451).

  The NFC communication unit 315 of the infrared remote controller 310 starts operation by receiving power from the outside, and receives connection information transmitted from the NFC communication unit 332 of the wireless terminal 330. Further, the NFC communication unit 315 sends a connection information transmission command for transmitting connection information to the remote control signal transmission unit 312 (S453). When receiving the connection information transmission command, the remote control signal transmission unit 312 generates a remote control signal based on the connection information acquired from the NFC communication unit 315, and drives the infrared LED 313 based on the generated signal (S454). .

  Then, remote control receiving unit 321 of projector 320 receives a remote control signal based on connection information emitted from infrared LED 313. The connection information extraction unit 322 extracts connection information from the remote control signal received by the remote control reception unit 321 (S460). Then, the wireless transmission / reception unit 323 sets up wireless communication based on the connection information extracted by the connection information extraction unit 322 (S461).

  On the other hand, the wireless transmission / reception unit 333 of the wireless terminal 330 attempts to establish wireless communication based on the connection information held in the connection information storage unit 331 (S472). Then, since the wireless transmission / reception unit 323 of the projector 320 and the wireless transmission / reception unit 333 of the wireless terminal 330 perform initialization and connection operation based on the same connection information, the connection can be established without confusion (S499). Incidentally, the connection information stored in the connection information storage unit 331 is not necessarily fixed.

  For example, by including information unique to the wireless terminal in the connection information, collision of nearby identification information (SSID) can be prevented. In addition, each time the NFC communication unit 332 performs communication, the pass code of the connection information can be changed to improve security. As yet another embodiment, a wireless terminal holding connection information can provide connection information to another communication terminal via each NFC communication unit.

110 Infrared remote control 111 Remote control operation unit 112 Remote control signal transmission unit 113 Infrared LED
115 NFC communication unit 116 connection information storage unit

Claims (12)

A system comprising a first device, a second device, and a third device,
By the first device and the second device communicating,
The first device and the third device communicate,
A system characterized by establishing a communication connection between a second device and a third device. The system according to claim 1, wherein the first device holds connection information for establishing a communication connection between the second device and the third device. The system according to claim 1, wherein the second device holds connection information for establishing a connection for communication between the second device and the third device. The system according to any one of claims 1 to 3, wherein the connection information is updated when the first device and the second device communicate with each other. The system according to any one of claims 1 to 4, wherein the communication means of the first device and the second device is proximity wireless communication. The system according to any one of claims 1 to 5, wherein the communication means of the first device and the third device is infrared communication. The system according to any one of claims 1 to 6, wherein the communication means of the second device and the third device is wireless LAN communication. The system according to any one of claims 1 to 7, wherein the connection information includes information necessary for generating identification information (SSID). The system according to claim 1, wherein the connection information includes a passcode necessary for authentication. Proximity wireless communication means for performing proximity wireless communication;
Infrared signal generation means for generating an infrared signal;
An infrared communication transmitting means for transmitting an infrared signal;
A connection information storage means for holding connection information for communication different from these is provided,
When the nearby wireless communication means performs communication,
The infrared signal generation means generates an infrared signal based on the connection information held in the connection information storage means,
An electronic device configured to transmit the infrared signal by the infrared communication transmitting means. Proximity wireless communication means for performing proximity wireless communication;
Infrared signal generation means for generating an infrared signal;
An infrared communication transmitting means for transmitting an infrared signal;
When the nearby wireless communication means performs communication,
The infrared signal generation means generates an infrared signal based on the connection information received by the proximity wireless communication means,
An electronic device configured to transmit the infrared signal by the infrared communication transmitting means. An infrared communication receiving means for receiving an infrared signal;
Connection information extracting means for extracting connection information;
Provided with wireless communication means for wireless communication with the outside,
When the infrared communication receiving means receives an infrared signal,
The connection information is extracted from the infrared signal received by the connection information extraction means,
An electronic apparatus configured to initialize wireless communication means based on the extracted connection information.