JP2001224083A - Method for receiving program in wireless control system, control device and controlled device - Google Patents

Abstract

(57) Abstract: In a wireless control system in which a controlled device is wirelessly controlled by a control device, a control program for a plurality of controlled devices can be easily stored in one control device. thing. SOLUTION: The user-definable operation code of IrOBEX protocol in IrDA is defined as an operation code indicating a transmission request code of a control Java applet, and a transmission / reception circuit 10 of a control device 101 is defined.
6 to the operation device control Ja.
The va applet is transmitted to the home appliance 101 stored in the memory 105, and the transmission / reception circuit 1 of the home appliance 101 is transmitted.
03 causes the control device 102 to transmit the control Java applet. The control device 102 controls the control J
The home appliance 101 is controlled using the ava applet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio control system having a control device and a controlled device which is remotely controlled by the control device by radio, for automatically receiving a program such as a Java applet. The present invention relates to a program receiving method, a control device, and a controlled device.

[0002]

2. Description of the Related Art Conventionally, when various types of controlled devices such as home electric appliances are controlled by a control device, remote control using radio waves or infrared rays has been performed. For example, when the controlled device is a home electric appliance or the like, as the type of the controlled device increases, the number of control devices for controlling each controlled device increases with the increase of the types of the controlled device. It must be used separately for each control device, which is complicated. By applying a Java technology that is currently attracting attention, a control menu is set up for each controlled device by a program (for example, a Java applet), and if one control device can be used for each controlled device, A large number of controlled devices can be controlled by one control device. In order to realize this, the problem is how to incorporate a control program for each controlled device into the control device.

Conventionally, as a method of loading a program or data into an apparatus, Japanese Patent Application Laid-Open Nos. 11-65968 and
JP-A-1-120148, JP-A-11-219214, JP-T-11-512206, JP-A-11-112
There is a method described in JP-A-15761. Here, in the invention described in Japanese Patent Application Laid-Open No. 11-65968, when the management device needs to execute a Java applet, the management device requests the management program server to download the applet and execute the applet. That is. The invention described in Japanese Patent Application Laid-Open No. H11-120148 is that a computer downloads and executes a Java applet from another computer connected to a network. In the invention described in Japanese Patent Application Laid-Open No. H11-219214, a display terminal downloads and executes a Java applet from an industrial network computer. Tokiohei 11-512
In the invention described in Japanese Patent Publication No. 206, the device performs broadcast communication to notify its existence, the computer requests the device to transmit a Java applet, and the device stores the applet in the computer. The computer executes the stored applet to control the device. Also, the invention described in Japanese Patent Application Laid-Open No. H11-15661 is based on IrDA (Infra-red Data A).
The information processing apparatus searches for an external device by using an association (ssociation) method, establishes a link between the information processing apparatus and the external apparatus, and transmits an HTML (Hype) to the external apparatus from the information processing apparatus.
It downloads data such as rText Markup Language (File) files.

[0004]

As described above, as described above, JP-A-11-65968 and JP-A-11-120148.
JP, JP-A-11-219214 and JP-T-Hei 1
The inventions described in Japanese Patent Application Laid-Open No. 1-512206 are all download methods in a wired system. In remote control using radio, it is necessary to be able to cope with a case where the controlled device increases or decreases with time, for example, a case where the controlled device frequently enters and leaves a communication path. In the inventions described in the above publications, it is difficult to cope with this. On the other hand,
Japanese Patent Application Laid-Open No. 1-15761 discloses an invention in which data such as a file is downloaded by infrared wireless communication. However, the download target of the present invention is data. The control is not described. In addition, although the IrDA method is adopted, each protocol defined by IrDA is used as it is, and there is a problem that the system lacks expandability.

The present invention provides a wireless control system for controlling a controlled device wirelessly by a control device so that a control program for a plurality of controlled devices can be easily stored in one control device. It is an issue. Another object of the present invention is to provide a method which is suitable for the IrDA system and has a scalable method when a control program of a controlled device is stored in a control device.

[0006]

According to the present invention, a user-definable operation of an object exchange protocol is provided in a wireless control system comprising a control device and a controlled device remotely controlled by the control device wirelessly. The code is defined as an operation code indicating a transmission request code of the control program, the operation code is transmitted from the control device to the controlled device, and the controlled device responds to the operation code, Transmitting a self-device control program stored in a storage unit to the control device, wherein the control device stores the control program from the controlled device in a second storage unit. A method for receiving a program is provided. The control device transmits an operation code indicating a transmission request code of the control program and a defined user-definable operation code. In response to the operation code, the controlled device transmits its own device control program stored in the first storage unit to the control device. The control device stores the control program from the controlled device in a second storage unit. Here, the control program may be a Java applet. Further, the controlled device may be a home electric appliance.

Further, according to the present invention, a user-definable operation code of the object exchange protocol is defined as an operation code indicating a transmission request code of a control program, and an object code storing the self-device control program is stored. Transmitting means for transmitting the operation code to the control device to request transmission of the control program, receiving means for receiving the control program transmitted from the controlled device, and storing the received control program And a storage device for performing the control. The control device transmits an operation code indicating a transmission request code of the control program and a user-definable operation code defined by the transmission unit to the controlled device by the transmission unit, and transmits the control program transmitted from the controlled device. The control program is received by the receiving means and stored in the storage means.

Further, according to the present invention, a storage means for defining a user-definable operation code of the object exchange protocol as an operation code indicating a transmission request code of a control program, and storing a control program for the apparatus itself, Determining means for determining whether or not the operation code has been received from the device; and, when determining that the operation code has been received by the determining means, the control device stores the own device control program stored in the storage means in the control device. And a transmitting device for transmitting the data. When the controlled device determines that the user-defined operation code defined as the operation code indicating the transmission request code of the control program has been received by the determining device, the controlled device transmits the own device control program stored in the storage device to the transmitting device. To the control device.

Further, according to the present invention, in a wireless control system including a control device and a controlled device that is remotely controlled by the control device wirelessly, the control device is a first control device.
While constructing a communication path between the controlled device of the received control device discovery operation from the second controlled device, using a communication path that can be used from a plurality of applications,
A plurality of communication paths are constructed between the control device and the first and second controlled devices, and a request for transmission of a control program is sent from the control device to each of the first and second controlled devices. Transmitting a control program for controlling the first and second controlled devices from the first and second controlled devices to the control device. . When the control device is constructing a communication path with the first controlled device and receives a discovery operation of the control device from the second controlled device, the control device uses a communication path that can be used by a plurality of applications. Constructing a plurality of communication paths between the control device and the first and second controlled devices,
The control device transmits a transmission request for a control program from a transmission unit for each of the first and second controlled devices. The first and second controlled devices transmit the control programs of the first and second controlled devices stored in the respective storage units to the control device by the transmission unit.

[0010]

FIG. 1 is a block diagram of a system used for a program receiving method, a control device, and a controlled device in a wireless control system according to an embodiment of the present invention. In FIG. 1, reference numeral 101 denotes a home electric appliance (for example, a television, a video, or a stereo) as a controlled device;
Reference numeral 2 denotes a control device for remotely controlling the home electric appliance 101. The home appliance 101 and the control device 102 are configured to transmit and receive various signals, such as transmission and reception of control signals and transmission and reception of programs and data, wirelessly using the IrDA method.

The home electric appliance 101 includes a transmitting / receiving circuit 103 as a first transmitting / receiving means constituting a first transmitting / receiving means for transmitting / receiving an infrared signal, a first transmitting means, and a first receiving means. Means, a central processing unit (CPU) 104 as a first processing means constituting a first determination means,
A memory (for example, a non-volatile memory or a read-only memory (ROM)) 105 as the first storage unit and the home electric appliance 1
01 A circuit (for example, a receiving circuit, a demodulation circuit, a cathode ray tube, etc. (not shown) in the case of a television) for realizing the original functions, an operation button (not shown) as first operation means, etc. ing. The memory 104 includes a CPU 104
, A control program for controlling the home appliance 101 (for example, a Java applet), a user-definable code defined by IrDA as described later, and the like. The CPU 104 performs processing as described later by executing a processing program stored in the memory 105.

The control device 102 includes a transmitting / receiving circuit 106 as a second transmitting / receiving means constituting a second transmitting / receiving means for transmitting / receiving an infrared signal, a second transmitting means, and a second receiving means. Means, a central processing unit (CPU) 107 as a second processing means constituting a second determination means,
A memory (for example, a non-volatile memory, ROM) 108 as a second storage means and an operation button (not shown) as a second operation means are provided. The memory 108 has a CP
A processing program for the U107, a program for remotely controlling the home appliance 101 using the control program for the home appliance 101, a user-definable code defined by IrDA as described later, and the like are stored. C
The PU 107 performs processing as described below by executing a processing program stored in the memory 108.
Although FIG. 1 shows only one home appliance 101, a plurality of home appliances are controlled by the control device 10 by infrared rays.
2 can be controlled.

FIG. 7 shows an IrDA used in the present embodiment.
3 is a diagram showing a protocol layer model of FIG. As shown in FIG. 7, the Infrared Data Asso
"Infrared Dat" issued by ciation on June 16, 1996.
a Association Serial Infrared Link Access Protocol
(IrLAP) Version 1.1 ”is provided with an IrLAP protocol layer for constructing an infrared communication path according to the method specified in“ Version 1.1 ”. IrLAP is basically based on HDLC (High Level
Although it employs Data Link Control, it has a procedure for finding an unspecified device equipped with IrDA, and negotiates with a partner device to be connected to determine the transmission speed and data size. In addition, on the IrLAP layer, a plurality of logical service access points are prepared on the communication path viewed from the application to simultaneously provide a data link to a plurality of service users and identify an upper service user. Providing a database called the Information Access Service (IAS), which is the main purpose, from the Infrared Data Association in 1996.
Infrared Data Association Link issued on March 23
Management Protocol (IrLMP) Version 1.1 ". The IAS provides a function for managing data such as what kind of devices and applications are connected on the logical data bus of the access point.

Further, on the IrLMP layer, IrDA
Since the physical connection speed of the application differs from that of the application, TinyTP controls the data flow for each access point and controls the data transfer size.
A layer is provided. On these layers, an Infrared Data Association for transmitting and receiving, as an object file, a program (in this embodiment, a Java applet) for controlling the home appliance 101 as a controlled device.
n Infrared Data Asso issued on January 22, 1997
ciation Object Exchange Protocol (IrOBEX) Version
An IrOBEX layer defined by “1.0” is provided.
IrOBEX is based on HTTP (Hyper Text Transfer Protocol).
ocol) is a general purpose object exchange protocol using a subset of On the control device 102 side, an application that realizes a control function using a program for controlling the controlled device, which is a received object file, is provided on these protocol layers.

First, an outline of an embodiment according to the present invention will be described. In the present embodiment, a control device 102 dedicated to a Java applet for remotely controlling a home appliance 101 using an infrared communication system (IrDA). The infrared communication procedure when automatically receiving and using the control Java applet for each home appliance 101 from each home appliance 101 is defined, and the home appliance 101 transmits to the Java applet dedicated control device 102, Home appliances 101
It also stipulates a processing procedure for transmitting a control Java applet for controlling itself. The infrared communication procedure specified in the present embodiment is described in
Infrared Data Association Obje published on March 22
ct Exchange Protocol (IrOBEX) Version 1.0 "by using the infrared communication IrOBEX communication system developed and used, the home appliance 101 stored in the home appliance 101 is used.
It is characterized in that the control device 102 receives a home appliance control Java applet for controlling itself from the home appliance 101.

As shown in the flowchart of FIG. 2, the infrared communication processing when transmitting and exchanging the Java applet for controlling the home appliance stored in the home appliance 101 to the Java applet dedicated control device 102 is performed as shown in the flowchart of FIG.
`` Infrared Data Association Serial Infrared Link '' issued by the frared Data Association on June 16, 1996
Access Protocol (IrLAP) Version1.1 ”is followed by the construction of an infrared communication path (step S201).
`` Infrared Data Association Link Management Protoc published by the ed Data Association on January 23, 1996.
ol (IrLMP) Version 1.1 ”on a communication channel provided with application-oriented multiplexing and a database (IAS) attached thereto (step S20).
2), IrOBE specified by IrOBEX protocol
Communication is performed by the X communication method (step S203).

In the above processing procedure, an infrared communication path is constructed according to a procedure according to the IrLAP protocol, and the IrLMP
After the application-oriented multiplexing and the link of the communication path provided with the database attached thereto are performed as specified by the protocol, the Java applet dedicated control device 102 controls the home appliance for controlling the home appliance itself. A control Java applet transmission request code is transmitted to the home electric appliance 101 storing the control Java applet to request transmission of the control Java applet. The home electric appliance 101, which has received the control Java applet transmission request code from the Java applet dedicated control device 102, analyzes the received code by a determination unit, reads the control Java applet from the memory 105 in the own device, and reads the control Java applet. Data is transmitted to the applet-dedicated control device 102 using the IrOBEX communication method defined by the IrOBEX protocol. The control device 102 that has received the program remotely controls the home electric appliance 101 using the program.

FIG. 3 is a flowchart showing processing according to the embodiment of the present invention, showing processing by the CPUs 104 and 107. The processing in the present embodiment will be described in detail with reference to FIG. The device to be connected to the infrared communication device is not determined. To connect and perform communication, it is necessary to first find the connection device. Therefore, as shown in step S301 in FIG. 3, first, the control device 102
`` Infrared Data Association Serial issued on the 16th
Infrared Link Access Protocol (IrLAP) Version1.
Perform the device discovery procedure (Discovery operation) as described in “1”. That is, as shown in FIG. 4, the Java applet-dedicated control device 102 uses the station identification mutual exchange request (XID) indicating that there are n slots in the discovery procedure.
The command frame is broadcast from the transmission means. The home appliance 101 sends the station identification mutual exchange request (XID)
The determination unit determines whether or not the command has been received by the receiving unit, and if it is determined that the station identification mutual exchange request (XID) command has been received, the home appliance 101 becomes a response station,
The transmitting means returns a station identification mutual exchange response (XID) response frame (XID resp.) To one of the slots up to (n-1). FIG. 4 shows an example in which a station identification mutual exchange response (XID) response frame is returned in the fourth slot. The device discovery procedure (Discover
In (y operation), the device address and device information to be notified to the upper service user layer are exchanged.

A dedicated control unit 102 for Java applets
Determines whether or not the receiving unit has received a station identification mutual exchange response (XID) response frame from the home appliance 101. If it is determined that the frame has been received, the connection procedure is performed as shown in step S302 of FIG. I do. That is, as shown in FIG. 5, the control device 102, which has determined in the previous discovery procedure that the station identification mutual exchange response (XID) response frame has been received by the receiving means, sends the home appliance 101 a normal response mode setting (SNRM) command. Is transmitted from the transmitting means. The home appliance 101 determines whether or not the normal response mode setting (SNRM) command has been received by the receiving unit. If it is determined that the normal response mode setting (SNRM) command has been received, the transmission unit transmits a non-numbered response (UA) command to the control device 102. return it. In this connection procedure, negotiation parameters between the two devices are exchanged, and a communication procedure is performed. At this stage, the infrared communication path is connected, and the infrared communication path is established.

Next, as shown in step S303 of FIG.
The Infrared Data Association Link Management Pr issued by Infrared Data Association on January 23, 1996.
otocol (IrLMP) Version1.1 ”
The link management of the infrared communication path is performed in the LMP layer. After the link management is normally performed, the control unit 102 for exclusive use of the Java applet requests the home appliance 101 storing the Java applet for controlling the home appliance to transmit the control program, as shown in step S304 of FIG. In order to transmit a Java applet transmission request code, which is a code, an IrOBEX frame including an operation code of the IrOBEX protocol is created. At this time, the operation code of the IrOBEX protocol indicating the Java applet transmission request code to the home electric device 101 is as follows:
Defined with user-definable operation codes. In other words, from the Infrared Data Association, January 22, 1997
"Infrared Data Association Object E
`` OBEX Opera of xchange Protocol IrOBEX Version1.0 ''
In FIG. 6 showing the operation codes described in the section “Options and Opcode definitions”, the Java to the home appliance 101 is performed using one of the user-definable codes 0x10 to 0x1F.
a Defined as an operation code of the IrOBEX protocol indicating an applet transmission request code. The definition is stored in the memories 105 and 108 in advance.

An IrOBEX protocol operation code, which is a Java applet transmission request code to the home appliance 101, is transmitted to the home appliance 101.
The BEX frame is referred to as “Infrared Data Association Obje
ct Exchange Protocol IrOBEX Version1.0 ''
"Request Format" in the chapter "n Protocol"
In accordance with the above, the data is created by the processing means with “operation code (1 byte)” + “packet length (2 bytes)”. For example, if the operation code of the IrOBEX protocol, which is a Java applet transmission request code to the home electric appliance 101, is defined as 0x10,
rOBEX frame is "0x10" + "0x0003"
3 bytes. As described above, the Java applet-dedicated control device 102 provides the IrOEX protocol operation code to the IrO
Creates a BEX frame and provides IrOB to home appliance 101
The EX frame is transmitted from the transmitting means.

On the other hand, in the memory 105 of the home appliance 101, the defined operation code is an I code indicating a Java applet transmission request code to the home appliance 101.
A definition that the operation code is an operation code of the rOBEX protocol is stored. The home appliance 101 has the Ir
When the OBEX frame is received by the receiving means, the frame is analyzed by the determining means using the IrOBEX protocol, and it is determined whether or not the Java applet transmission request code of the operation code has been received. When it is determined that the Java applet transmission request code of the operation code has been received by the determining means, the IrOBEX response code 0xA0 is transmitted in the IrOBEX frame by the Java.
The data is transmitted from the transmission unit to the va applet dedicated control device 102. IrOBE including this response code 0xA0
The X frame is composed of “0xA0 (representing OK)” + “packet length (2 bytes)”.

Next, as shown in step S305 of FIG. 3, the home appliance 101 stores the memory 10 in the home appliance 101.
5 to read the Java applet for controlling the own device stored in the device 5 and transmit the read applet to the dedicated applet control device 102, the “Infrared Data Association Object E
xchange Protocol IrOBEX Version1.0 '' SessionPro
tocol section, OBEX Operations and Opcode definiti
The operation code 0x80, which is a connection request of the link connection of the IrOBEX protocol described in the section “ons”, is transmitted to the Java applet-dedicated control device 102 by the transmission unit in an IrOBEX frame.
The IrOBEX frame containing the operation code 0x80, which is the connection request, is “0x80 (connection request)”.
+ "Packet length (2 bytes)" + "OBEX version (1 byte)" + "Flag (1 byte)" + "Maximum OBEX packet receivable size (2 bytes)" +
It consists of an "optional header". Upon receiving the frame, the Java-dedicated control device 102 analyzes the frame using the IrOBEX protocol by the determination unit,
If it is determined that the connection request has been received, the transmission unit transmits a response code 0xA0 to the home electric device 101 in an IrOBEX frame. The IrOBEX frame including the response code 0xA0 indicating the connection acceptance is “0x
A0 (represents OK) + "Packet length (2 bytes)" + "OBEX version (1 byte)" + "Flag (1 byte)" + "Maximum OBEX packet receivable size (2 bytes)" + "Optional header" It consists of.

Next, as shown in step S306 in FIG. 3, the home electric appliance 101 sets “Infrared Data Association Ob
ject Exchange Protocol IrOBEX Version1.0 ''
`` OBEX Operations and Opcode defi '' in the chapter `` ionProtocol ''
In accordance with the object transmission (PUT) sequence described in section “4.3.3 Put” described in the section “nitions”, the transmission unit transmits a Java applet for controlling the own device. The control device 102 controls the control Java from the home appliance 101.
The applet is received by the receiving means and stored in the memory 108. After the transmission of the Java applet for controlling the home appliance 101 is completed, the home appliance 101 executes step S307 in FIG.
As shown in (1), the connected IrOBEX link is disconnected. In order to perform the disconnection process, select "Infrared Data
Association Object Exchange Protocol IrOBEX Versio
n1.0 "," OBEX Operation "in the" Session Protocol "chapter
Ir described in the section "s and Opcode definitions"
An operation code 0x81, which is a request for disconnecting a link connection of the OBEX protocol, is transmitted from the transmission unit to the control device 102 in an IrOBEX frame. Ir including the operation code 0x81 which is the disconnection request
The OBEX frame is composed of “0x81 (disconnection request)” + “packet length (2 bytes)” + “optional header”.

When the IrOBEX frame is received by the receiving unit, the control unit 102 determines that the IrOBEX frame is IrOEX.
When the frame is analyzed by the BEX protocol and it is determined that the disconnection request has been received, the response code 0xA0
Is transmitted from the transmitting means to the home electric appliance 101 in an IrOBEX frame. Response code 0x indicating this disconnection acceptance
The IrOBEX frame including A0 is “0xA0 (OK
)) + “Packet length (2 bytes)”. According to the above-described processing, a Java applet for controlling the home appliance 101 can be automatically downloaded to the control device 102 when the infrared communication path is constructed. By operating the operation button of the control device 102, the home appliance 10 can be controlled using the control Java applet.
For example, when the home appliance is a television, control such as channel switching and volume adjustment can be performed.

As described above, according to the present embodiment,
In a wireless control system including a control device 102 and a home appliance 101 as a controlled device that is remotely controlled by the control device 102 wirelessly, a user-definable operation code of IrOBEX, which is an object exchange protocol, is stored in a control program. Is defined as an operation code indicating the transmission request code of the home appliance 10 in advance.
1 is stored in the memory 105 of the control device 102 and the memory 108 of the control device 102.
1 responds to the operation code,
5 is transmitted from the transmission means to the control device 102, and the control device 102
A method for receiving a program in a wireless control system is provided, wherein the control program from No. 01 is received by a receiving means and stored in a memory. Here, a Java applet can be used as the control program.

According to the present embodiment, a user-definable operation code of IrOBEX, which is an object exchange protocol, is defined as an operation code indicating a transmission request code of a control program. Transmitting means for transmitting the operation code to the stored home appliance 101 to request transmission of the control program; receiving means for receiving the control program transmitted from the home appliance 101; And a control device including a memory 108 for storing an application program. Further, according to the present embodiment, the object exchange protocol IrOBEX
A memory 105 for defining the user-definable operation code as an operation code indicating a transmission request code of the control program and storing the operation code together with the own device control program, and receiving the operation code from the control device 102 and storing the operation code in the memory 105 Determining means for determining whether or not the operation code has been received, based on the stored operation code; and, if the determination means determines that the operation code has been received, a program for controlling the own device stored in the memory 105 And a transmission means for transmitting the control information to the control device 102.

This makes it possible for the control device 102 to automatically import the own device control program stored in the home electric device 101 and to control a plurality of home electric devices 101 with one control device 101. Each controller 10
2 and re-link the communication, it becomes possible to automatically take in the control program of the other home appliance 101, and a single control device 102 allows a plurality of home appliances 10
1 can be controlled. Further, when a Java applet is used as the control program, the control applet dedicated to the Java applet can automatically receive the own device control Java applet stored in each home appliance 101. In addition, by using various user-definable operation codes, it becomes possible to automatically receive a control program or the like of another program. In addition, by directing the control unit 102 dedicated to the Java applet to each home appliance 1011 and performing an infrared link again, the Java applet of another home appliance can be automatically received, and the control unit 102 dedicated to one Java applet can be received.
Thus, many devices can be controlled.

In the above-described embodiment, the automatic transmission method of the Java applet to the Java applet dedicated control device 102 which receives and operates the control Java applet of one household appliance 101 has been described.
Infrared Data Association Link ManagementPro issued on January 23, 1996 by Infrared Data Association
Tocol (IrLMP) Version 1.1 ", it is defined that infrared communication paths can be used by multiple applications, and one home appliance and a dedicated control unit for Java applet establish infrared communication. At the same time, from other home appliances, Infrared Data Association
Infrared DataAssociation Seria issued on March 16
l Infrared Link Access Protocol (IrLAP) Version 1.
When a plurality of communication paths are constructed by receiving a discovery operation as defined in “1”, a control Java applet transmission request as defined in the above-described embodiment is sent for each household appliance that is constructing the communication path. The method is also applied to a method for automatically receiving a Java applet to a Java applet-dedicated control device that can simultaneously activate each control Java applet.

That is, the control device 102 and the control device 102
In a wireless control system including a home appliance 101 that is remotely controlled wirelessly by the control device 102, the control device 102 can operate in the IrDA mode when a communication path is established with the first home appliance 101. The second home appliance 101 different from the first home appliance 101 receives the discovery operation of the control device 102 by IrLAP from Ir home appliances 101, and uses IrLMP to use a communication path that can be used by a plurality of applications.
A plurality of communication paths are established between the control device 102 and the first and second home electric appliances 101, and a transmission unit of the control device 102 transmits a control program transmission request using IrOBEX to the first and second home electric appliances. The control unit 102 transmits the control program stored in the memory 105 of each of the first and second home appliances to the control device 102 from the first and second home appliances 101 by the transmission unit. First, the control program can be received from the second home appliance 101 by a receiving unit and stored in the memory 108.

The present invention is not limited to the above-described embodiment.
BlueTooth or USB that can communicate
(Universal Serial Bus) and other protocols
The present invention can also be applied to an ava applet automatic reception method. Furthermore, in the above-described embodiment, an example of a home electric appliance has been described as a controlled device, but another device may be used as a controlled device.

[0032]

According to the present invention, it becomes possible to automatically load the control program of the own device stored in the controlled device into the control device. In addition, by directing the control device to each controlled device and performing a communication link again, it becomes possible to automatically import a control program of another controlled device,
There is an effect that a large number of controlled devices can be controlled by one control device.

[Brief description of the drawings]

FIG. 1 is a block diagram of a system used in an embodiment of the present invention.

FIG. 2 is a flowchart for explaining processing according to the embodiment of the present invention.

FIG. 3 is a flowchart for explaining processing according to the embodiment of the present invention.

FIG. 4 is a timing chart for explaining processing according to the embodiment of the present invention.

FIG. 5 is a timing chart for explaining processing according to the embodiment of the present invention.

FIG. 6 is a diagram showing operation codes used in the present embodiment.

FIG. 7 is a diagram showing a protocol hierarchy model of IrDA used in the present embodiment.

[Explanation of symbols]

101: Home electric appliance as controlled device 102: Control device 103: Transmission / reception circuit as first transmission / reception means constituting first transmission means, first reception means 104: First CPU 105 as first processing means constituting first transmitting means, first receiving means, and first determining means.... Memory 106 as first storing means 106... Second transmitting means, second A transmission / reception circuit 107 as a second transmission / reception means constituting the reception means of the present invention; a CPU as a second processing means constituting the second transmission means, the second reception means, and the second judgment means; .Memory as second storage means

Claims (6)

[Claims] In a wireless control system comprising a control device and a controlled device wirelessly controlled by the control device, a user-definable operation code of an object exchange protocol is transmitted to a transmission request code of a control program. And the control device transmits the operation code to the controlled device. The controlled device responds to the operation code and stores the control program stored in the first storage unit. To the control device, wherein the control device stores the control program from the controlled device in a second storage unit. 2. The method according to claim 1, wherein the control program is a Java applet. 3. The method according to claim 1, wherein the controlled device is a household electrical appliance. 4. A user-definable operation code of the object exchange protocol is defined as an operation code indicating a transmission request code of a control program, and the operation code is stored in a controlled device storing a control program of the device itself. Transmitting means for transmitting a request for transmission of the control program, receiving means for receiving the control program transmitted from the controlled device, and storage means for storing the received control program. A control device characterized by comprising: 5. An operation code which can be defined by a user of an object exchange protocol is defined as an operation code indicating a transmission request code of a control program, and a storage means for storing a control program of the own device, and the operation code is transmitted from a control device. Determining means for determining whether the operation code has been received, and transmitting means for transmitting the own device control program stored in the storage means to the control device when determining that the operation code has been received by the determining means. A controlled device, comprising: 6. A wireless control system comprising a control device and a controlled device that is remotely controlled by the control device wirelessly, wherein the control device establishes a communication path with a first controlled device. Receiving a discovery operation of the control device from a second controlled device, and using a communication path that can be used by a plurality of applications, the communication between the control device and the first and second controlled devices. A plurality of communication paths are constructed, a transmission request for a control program is transmitted from the control device to each of the first and second controlled devices, and the first and second controlled devices are transmitted from the first and second controlled devices to the control device. A program receiving method, wherein a control program for the first and second controlled devices is transmitted.