JP2007188394A - Equipment control communication system, equipment control communication method, controller, and equipment control communication program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain such a comfortable equipment control operation as intended by a user. <P>SOLUTION: A control state information updating part 101 updates control state information held in a control state information holding part 100, a control state information determination part 103 determines control to equipment 50 by the control state information held in the control state information holding part 100, an updated state holding part 102 holds the state information of expressing an update state, when the control state information is updated by the control state information updating part 101, and holds the state information of expressing a determination state when the control state information is determined by the control state information determination part 103, a periodical updating part 106 instructs acquired request information to be transmitted in every fixed time interval, when the updated state holding part 102 holds the state information of expressing the determination state, and does not instruct the acquired request information to be transmitted, when the updated state holding part 102 holds the state information of expressing the updating state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes at least one device, a main controller connected to the device and controlling the device, and at least one sub-device connected to the main controller and controlling the device via the main controller. The present invention relates to a device control communication system including a control device.

  Conventionally, when hypertext contains data that changes in real time, it is necessary for the web browser to frequently reload the hypertext in order to update the display content of the hypertext screen in the web browser in real time. . Further, since the target hypertext generally includes a display area on the web browser, screen flickering occurs when the web browser updates the display area, which may give the user a sense of discomfort. Further, when the amount of data increases, such as when the hypertext includes a large amount of image data, the amount of communication at the time of reloading increases, and the processing time for the web browser to update the display content on the screen also increases.

  For example, in Patent Document 1, an HTTP server that processes extended hypertext that can describe real-time data designation representing data in a real-time system in an arbitrary place in the hypertext and provides the hypertext, and hypertext There has been proposed a hypertext display system including a web client that provides a web browser for browsing. The HTTP server includes hypertext generation means for reading extended hypertext and outputting hypertext. The hypertext generation means specifies a real-time data management table for managing real-time data, and specifies real-time data from the extended hypertext. Real-time data specification specifying means for specifying and registering in the real-time data management table, real-time data management means for specifying a real-time data acquisition source from the real-time data specification, and acquiring real-time data from an external real-time data supply means, and real-time data Hypertext output means for outputting hypertext while referring to the real-time data management table in accordance with instructions from the management means. If it contains data to be changed in-time, the effect is shown that it is possible to efficiently update the display of hypertext screen.

For example, Patent Document 2 discloses a control system that allows a user to access an input / output device via a communication network using a web browser. According to this document, in the field of monitoring and controlling a plurality of input / output modules or devices, it is particularly possible to couple a plurality of input / output modules or devices to an HTTP server. It can be applied to a home network, and home devices are connected to an HTTP server, and the devices can be controlled via the HTTP server from the web browsers of a plurality of web clients connected to the HTTP server. .
JP 2004-78844 A JP 2002-204281 A

  A hypertext display system that efficiently updates display contents in hypertext including data that is changed in real time, and the user accesses the input / output device via a communication network using a web browser. The control system that enables this can be applied to a home network in the home. In a conventional device control technology using a web client that provides a web browser for receiving and browsing hypertext provided by an HTTP server, at least one device and a subnet connected to a main control device that controls the device are connected to the subnet. A configuration of a home network in which at least one sub control device is connected via the main control device is conceivable. The main control device has an HTTP server function, and the sub control device has a web client function.

  The general web client function of the sub-control device is to access the HTTP server and acquire the latest control status information of the device from the main control device at regular time intervals that are arbitrarily defined. In addition, the user can confirm the latest control state of the device by the refresh function for displaying the device state on the screen of the web browser that is browsed on the sub-control device. Also, in the web browser of the web client function of the sub-control device, the control status information of the device displayed on the screen is changed by key operation from the user, and the changed control status information is sent to the main control device. It is possible to control the device via the main control device.

  For example, an air conditioner or the like in a general home is configured with a plurality of control devices, such as an information home appliance having a communication function, and controls a device from a sub-control device having a web browser function via the main control device. There is a system that does not define an operator who can input each time. In such a system, in general, when the user changes the state of the device by operating the sub-control device having the web browser function, it is determined in advance assuming a situation in which the user continuously changes the state of the device. In addition, a configuration is adopted in which control state information of the last changed device is transmitted to the main control device after an arbitrary time has elapsed. Further, a configuration is conceivable in which the determination button is arranged on the screen, and the user changes the control state to be changed and then presses the determination button to transmit the changed control state information to the main control device. . Thereby, even if the user continuously changes the control state of the device, the control state information is not transmitted every time the device is changed, and the communication load is reduced and comfortable operability is realized.

  However, as described above, the device can be controlled from a plurality of locations such as a main control device, another sub-control device, an infrared remote controller attached to the device, or the device main body. For this reason, a trigger from a sub-control device that mainly uses a web browser makes a request to acquire the control status of the device connected to the main control device at regular intervals to the main control device including the HTTP server. The sub-control device is provided with a refresh function that allows the latest control state of the device to be confirmed by displaying the control state on the screen. In this sub control device, while the sub control device is operated by the user and the control state of the device is changed, that is, after the user operates, the refresh function is performed before a predetermined time elapses. It operated and had the subject that the control state of an apparatus will be changed into another control state contrary to a user's intention.

  On the other hand, when control is generally performed from a plurality of control devices, it is natural that the subsequent control is effective. As described above, when the user changes the state of the device by operating the sub-control device having the web browser function, it is assumed that the user continuously changes the state of the device. When a configuration is adopted in which the control state information of the last changed device is transmitted to the main control device after the elapse of time, the time when the user actually changed the control state of the device and the control state information are transmitted. The time received by the main controller is different. It is conceivable that after the user changes the state of the device in the sub-control device, the device state is changed in the main control device, and then the control state information of the device is transmitted from the sub-control device. In this case, control from the main control unit is performed first, control from the sub control unit is performed later, and control from the sub control unit is actually performed even though control from the main control unit is later. Had the problem of becoming effective.

  The present invention has been made to solve the above-described problem, and can provide a device control communication system, a device control communication method, a control device, and a device control communication capable of realizing a comfortable device control operation as intended by a user. The purpose is to provide a program.

  The device control communication system according to the present invention includes at least one device, a main control device connected to the device and controlling the device, and connected to the main control device, and the device is connected via the main control device. A device control communication system comprising at least one sub-control device for controlling, wherein the sub-control device holds at least one control state information indicating a control state of the device, and the control Control state information display means for displaying control state information held by the state information holding means, control state information changing means for changing control state information held by the control state information holding means, an address of the device, and an address of the device Control request information including at least one control state information indicating a control state and a control request code indicating that the device is controlled; or Request information transmitting means for transmitting acquisition request information including at least an acquisition address code indicating that an address of the device and a control state of the device are requested, and to the device by the control state information held by the control state information holding means Control state information confirmation means for instructing the request information transmission means to transmit control request information, and when the control state information is changed by the control state information change means State information holding means for holding state information and holding state information indicating that the control state information is confirmed when the control state information is confirmed by the control state information confirmation means, and the state information holding means is in the confirmed state When the status information indicating the status information is held, the request information transmission means is instructed to transmit the acquisition request information at regular time intervals, and the status information holding means changes. When holding state information indicating a middle state, periodic update means that does not instruct transmission of the acquisition request information, and control state information of the device as a response to the acquisition request information transmitted by the request information transmission means Acquisition response information including at least acquisition control information, and acquisition control reception means for changing the control state information held by the control state information holding unit to control state information included in the acquisition response information, and the main control device comprises: Request information receiving means for receiving any one of the control request information and the acquisition request information, and the control request information received by the request information receiving means when the request information receiving means receives the control request information. Control information holding means for holding control information including at least control state information included in the control information, and control state information held by the control information holding means Accordingly, the device control means for controlling the device and the acquisition response transmission means for transmitting the acquisition response information including at least the control status information held by the control information holding means when the request information receiving means receives the acquisition request information. With.

  The device control communication method according to the present invention includes at least one device, a main control device that is connected to the device and controls the device, and is connected to the main control device, and the device is connected via the main control device. A device control communication method for controlling the device from the sub-control device, wherein the sub-control device includes control state information holding means, control state information display means, A control state information changing unit, a request information transmitting unit, a control state information determining unit, a state information holding unit, a periodic updating unit, and an acquisition response receiving unit, wherein the main control unit includes a request information receiving unit, a control information holding unit, and a device. A control state information holding step, comprising control means and acquisition response transmission means, wherein the control state information holding means holds at least one control state information indicating a control state of the device; A control state information display step in which the control state information display means displays control state information held in the control state information holding means; and a control state in which the control state information change means holds in the control state information holding means A control state information changing step for changing information, and at least one control state information indicating the address of the device, the control state of the device, and a control request code indicating that the device is to be controlled by the request information transmitting means. A request information transmission step for transmitting acquisition request information including at least control request information including at least the address of the device and an acquisition request code indicating requesting a control state of the device; The control status information held by the control status information holding means confirms the control to the device and transmits the request information Control state information confirmation step for instructing transmission of control request information to the stage, and state information indicating that the state information holding means is in a changing state when the control state information is changed by the control state information changing means. A state information holding step for holding state information indicating that the control state information is determined when the control state information is determined by the control state information determining unit, and the periodic update unit is configured to If the status information indicating that the status information is being held is instructed to transmit the acquisition request information to the request information transmission means at regular time intervals, the status information indicating that the status information holding means is being changed is held. The periodic update step that does not instruct the transmission of the acquisition request information, and the acquisition response reception means is the acquisition transmitted by the request information transmission means. An acquisition response for receiving acquisition response information including at least the control state information of the device as a response to the request information, and changing the control state information held by the control state information holding unit to the control state information included in the acquisition response information A receiving step, a request information receiving step in which the request information receiving means receives any one of the control request information and the acquisition request information, a control information holding means, and the request information receiving means in the control request A control information holding step for holding control information including at least control state information included in the control request information received by the request information receiving means; and the device control means is held by the control information holding means when the information is received. A device control step for controlling the device according to the control status information, and the acquisition response transmitting means includes the request information receiver If There receiving the acquisition request information, including the acquisition response transmission step of transmitting the acquisition response information including at least a control state information and the control information holding means for holding.

  According to these configurations, in the sub control device, at least one control state information indicating the control state of the device is held in the control state information holding unit, and the control state information held in the control state information holding unit is displayed. . Control state information held in the control state information holding unit is changed, and control request information including at least one control state information indicating an address of the device, a control state of the device, and a control request code indicating controlling the device Alternatively, acquisition request information including at least an acquisition address code indicating that a device address and a control state of the device are requested is transmitted by the request information transmission unit. Thereafter, control to the device based on the control state information held in the control state information holding unit is confirmed, and the request information transmission unit is instructed to transmit the control request information. In addition, the state information holding means holds state information indicating that the control state information is being changed when the control state information is changed, and state information indicating that the control state information is determined when the control state information is determined. Retained. At this time, when the state information holding unit holds the state information indicating that it is in the confirmed state, the request information transmitting unit is instructed to transmit the acquisition request information at regular time intervals, and the state information holding unit is in the changing state. When the status information indicating that there is, the acquisition request information is not instructed to be transmitted. Then, the acquisition response information including at least the control state information of the device is received as a response to the acquisition request information transmitted by the request information transmitting unit, and the control state information held by the control state information holding unit is included in the acquisition response information Changed to control status information. In the main control device, when any one of the control request information and the acquisition request information is received and the control request information is received, the control information including at least the control state information included in the received control request information is the control information. It is held by the holding means. Then, the device is controlled according to the control state information held in the control information holding means. When the acquisition request information is received, acquisition response information including at least control state information held by the control information holding unit is transmitted.

  Therefore, when the control state information of the device is being changed in the sub control device, the acquisition request information is not transmitted, and until the changed device control state information is transmitted to the main control device, the sub control device Since the display of the control state of the device displayed on the screen of the device is not changed to the control state information received from the main control device, it is intended by the user who has changed the control state of the device in the sub control device. On the other hand, it is possible to prevent the display content from being automatically changed and to realize a comfortable device control operation as intended by the user.

  In the device control communication system, the acquisition response receiving unit receives hypertext including at least the acquisition response information, and the control state information display unit processes the hypertext and enables browsing. Preferably it includes browser means.

  According to this configuration, the hypertext including at least the acquisition response information is received, and the control state information included in the acquisition response information can be displayed by the web browser means that processes the hypertext and enables browsing.

  Moreover, in said apparatus control communication system, it is preferable that the said acquisition response transmission means transmits the said hypertext based on a hypertext transfer protocol.

  According to this configuration, since the hypertext is transmitted based on the hypertext transfer protocol, it is possible to reliably transmit the hypertext based on the prescribed protocol.

  In the device control communication system, the web browser means has a refresh function for instructing the request information transmission means to transmit the acquisition request information at regular time intervals, and the periodic update means When the information holding unit holds state information indicating that the information is being changed, it is preferable to disable the refresh function.

  According to this configuration, the web browser means has a refresh function for instructing the request information transmitting means to transmit the acquisition request information at regular time intervals, indicating that the state information holding means is in a changing state. When the status information is retained, the refresh function is invalidated, so that the display of the control status of the device displayed on the screen of the sub-control device can be prevented from being changed against the user's intention. .

  Further, in the device control communication system, when the acquisition response receiving unit holds the state information indicating that the state information holding unit is in a changing state when the acquisition response information is received, the control state It is preferable that the control state information held by the information holding unit is not changed to the control state information included in the received acquisition response information.

  According to this configuration, when the acquisition information is received, when the state information holding unit holds the state information indicating that the state is changing, the control state information held by the control state information holding unit is received. The control status information included in the acquisition response information is not changed. Therefore, even if the acquisition response information is received from the main control device, the control status information is not changed if the control status information is being changed in the sub control device, so that the device displayed on the screen of the sub control device is not changed. It is possible to prevent the display of the control state from being changed against the user's intention.

  In the device control communication system, the periodic update unit instructs the request information transmission unit to transmit the acquisition request information at regular time intervals regardless of the content of the state information held by the state information holding unit. It is preferable to do.

  According to this configuration, since the request information transmission unit is instructed to transmit the acquisition request information at regular time intervals regardless of the state information held by the state information holding unit, the control state information is Even during the change, the acquisition request information that is periodically transmitted can be transmitted.

  In the device control communication system, the sub-control device starts measuring time when the control state information held by the control state information holding unit is changed by the control state information changing unit, and arbitrarily Further, a confirmation timer means for ending the measurement when a predetermined time has elapsed, and the control state information confirmation means is based on the control state information held by the control state information holding means when the confirmation timer means finishes the measurement. It is preferable to establish control of the device.

  According to this configuration, when the control state information held by the control state information holding unit is changed, measurement of the time of the confirmation timer unit is started, and when an arbitrarily determined time has elapsed, the measurement is ended, and the confirmation timer When the means finishes the measurement, the control of the device based on the control state information held by the control state information holding means is confirmed. Therefore, since the control state information is confirmed as the change content after a predetermined time has elapsed since the change, it is possible to save time and labor for confirming the control state information changed by the user.

  Further, in the device control communication system, the confirmation timer unit ends the measurement when the control state information determination unit determines control of the device based on the control state information held by the control state information holding unit. Is preferred.

  According to this configuration, when the control of the device based on the control state information held by the control state information holding unit is confirmed, the measurement of the confirmation timer unit is terminated, so that it is automatically performed when the control state information is confirmed by the user. Thus, the time measurement can be stopped.

  Further, in the device control communication system, when the request information transmission unit transmits the control request information, the request information transmission unit confirms the control request information from the start of the determination timer unit to the end of the measurement. It is preferable to include a delay time.

  According to this configuration, since the definite delay time from when the deterministic timer means starts the measurement until the measurement is completed is transmitted in the control request information, the device is controlled in consideration of this definite delay time. be able to.

  In the device control communication system, when the request information receiving unit receives the control request information, the request information receiving unit subtracts the fixed delay time included in the control request information from the time when the control request information is received. The main control device includes a time as a change time in the control information, and the main control device, when the request information receiving means receives the control request information, when the control information holding means already holds the control information, A change time comparing means for comparing the change time included in the information with the change time already held by the control information holding means, the control information holding means, as a result of the comparison by the change time comparing means, If the change time included in the control information is later than the change time already held by the control information holding means, it is preferable to hold the control information. Arbitrariness.

  According to this configuration, when the control request information is received in the main control device, the control information is obtained by subtracting the fixed delay time included in the control request information from the time when the control request information is received. Include in When the control information is already held in the control information holding unit when the control request information is received, the change time included in the control information is compared with the change time already held in the control information holding unit. As a result of the comparison, when the change time included in the control information is later than the change time already held in the control information holding means, the control information is held.

  Therefore, even when control is concentrated from a plurality of control devices in a short time, the time when the control state of the device is actually changed can be compared, and later control in time can be validated. On the other hand, the latest control state can be reflected.

  Further, in the device control communication system, the acquisition response transmission unit may change the change time included in the control information as a result of the comparison by the change time comparison unit to the change time already held by the control information holding unit. If it is before, it is preferable that the control status information included in the control information held by the control information holding means is included in the acquisition response information and transmitted to the sub-control device.

  According to this configuration, the change time included in the control information is compared with the change time already held by the control information holding unit. As a result of the comparison, the change time included in the control information is already determined by the control information holding unit. If it is before the held change time, the control state information included in the control information held by the control information holding means is included in the acquisition response information and transmitted to the sub-control device. Therefore, when the control of another control device becomes valid and the control performed by itself becomes invalid, the sub-control device may receive a notification of the latest control status of the device from the main control device and reflect it in the display. it can. As a result, the user can recognize that the control state of the device has been changed by another control device, and in the control of the device by the plurality of control devices and the state synchronization of the device, a natural operability without a sense of incongruity is achieved. Can be realized.

  A control device according to the present invention is a control device that is connected to another control device that controls at least one device and controls the device via the other control device, and represents a control state of the device. Control state information holding means for holding at least one state information; control state information display means for displaying control state information held by the control state information holding means; and control state information held by the control state information holding means. Control state information changing means for changing, control request information including at least one control state information indicating an address of the device, a control state of the device, and a control request code indicating controlling the device, or Request information transmission means for transmitting acquisition request information including at least an apparatus address and an acquisition request code indicating that the control state of the apparatus is requested. A control state information determining unit that determines control to the device based on the control state information held by the control state information holding unit, and instructs the request information transmitting unit to transmit control request information; and the control state information changing unit When the control state information is changed, the state information indicating that the state is being changed is held, and when the control state information is determined by the control state information determination unit, the state information indicating the determined state is stored. When holding the status information indicating that the status information holding means and the status information holding means are in a confirmed state, the request information transmitting means is instructed to transmit the acquisition request information at regular time intervals, and the status information holding is performed. When the state information indicating that the means is in a changing state is held, the periodic update means that does not instruct the transmission of the acquisition request information and the request information transmission means Control status information included in the acquisition response information includes control response information that is received by the control status information storage unit and that receives control response information including at least the control status information of the device as a response to the acquired acquisition request information. Acquisition response receiving means for changing to

  A device control communication program according to the present invention is a device control communication program connected to another control device that controls at least one device, and for controlling the device via the other control device. Control state information holding means for holding at least one control state information representing the control state, control state information display means for displaying the control state information held by the control state information holding means, and the control state information holding means Control including at least control state information changing means for changing control state information to be held, at least one control state information indicating the address of the device, a control state of the device, and a control request code indicating controlling the device Acquisition including at least request information or an acquisition request code indicating that the device address and the control state of the device are requested Control state information for confirming control to the device by request information transmission means for transmitting request information and control state information held by the control state information holding means and instructing the request information transmission means to transmit control request information When the control state information is changed by the determining means and the control state information changing means, state information indicating that the state is being changed is held, and when the control state information is determined by the control state information determining means, the determined state State information holding means for holding the state information indicating that the acquisition request information is sent to the request information transmission means at regular time intervals when the state information holding means holds the state information indicating that the state information holding means is in a definite state. Periodic update that does not instruct transmission of the acquisition request information when the state information holding means holds state information indicating that it is in a changing state. And receiving the acquisition response information including at least the control state information of the device as a response to the acquisition request information transmitted by the request information transmission unit, the control state information held by the control state information holding unit, The computer is caused to function as an acquisition response receiving means for changing to the control state information included in the acquisition response information.

  According to these configurations, at least one piece of control state information representing the control state of the device is held in the control state information holding unit, and the control state information held in the control state information holding unit is displayed. Control state information held in the control state information holding unit is changed, and control request information including at least one control state information indicating an address of the device, a control state of the device, and a control request code indicating controlling the device Alternatively, acquisition request information including at least an acquisition address code indicating that a device address and a control state of the device are requested is transmitted by the request information transmission unit. Thereafter, control to the device based on the control state information held in the control state information holding unit is confirmed, and the request information transmission unit is instructed to transmit the control request information. In addition, the state information holding means holds state information indicating that the control state information is being changed when the control state information is changed, and state information indicating that the control state information is determined when the control state information is determined. Retained. At this time, when the state information holding unit holds the state information indicating that it is in the confirmed state, the request information transmitting unit is instructed to transmit the acquisition request information at regular time intervals, and the state information holding unit is in the changing state. When the status information indicating that there is, the acquisition request information is not instructed to be transmitted. Then, the acquisition response information including at least the control state information of the device is received as a response to the acquisition request information transmitted by the request information transmitting unit, and the control state information held by the control state information holding unit is included in the acquisition response information Changed to control status information.

  Therefore, when the control state information of the device is being changed in the control device, the acquisition request information is not transmitted, and until the control state information of the changed device is transmitted to another control device, Since the display of the control status of the device displayed on the screen is not changed to the control status information received from another control device, it is contrary to the intention of the user who is changing the control status of the device in the control device. Thus, it is possible to prevent the display contents from being automatically changed and to realize a comfortable device control operation as intended by the user.

  A control device according to the present invention is a control device that controls the device, and is connected to at least one device and at least one other control device that controls the device via the control device. Requesting control request information including at least an address, at least one control state information indicating a control state of the device, and a control request code indicating control of the device, and an address of the device and a control state of the device Request information receiving means for receiving any one of the acquisition request information including at least an acquisition request code indicating the request information from the other control device, and when the request information receiving means receives the control request information, the request information Control information holding means for holding control information including at least control state information included in the control request information received by the receiving means, and the control information holding Acquisition response information including at least control state information held by the control information holding unit when the request information receiving unit receives the acquisition request information, and a device control unit that controls the device according to the control state information held by the stage Acquisition response transmission means for transmitting.

  The device control communication program according to the present invention is a device control communication program for controlling the device connected to at least one device and at least one other control device that controls the device via the control device. Control request information including at least one control state information indicating an address of the device, a control state of the device, and a control request code indicating control of the device, and an address of the device and the device Request information receiving means for receiving any one of acquisition request information including at least an acquisition request code indicating that a control state is requested from the other control device; and the request information receiving means receives the control request information In this case, the control information holding at least the control information including the control state information included in the control request information received by the request information receiving means. Information holding means, device control means for controlling the equipment according to control status information held by the control information holding means, and the control information holding means when the request information receiving means receives the acquisition request information The computer is caused to function as acquisition response transmission means for transmitting acquisition response information including at least control state information.

  According to these configurations, in the control device, when any one of the control request information and the acquisition request information is received and the control request information is received, the control including at least the control state information included in the received control request information Information is held in the control information holding means. Then, the device is controlled according to the control state information held in the control information holding means. When the acquisition request information is received, acquisition response information including at least control state information held by the control information holding unit is transmitted.

  Therefore, when the control status information of the device is being changed in another control device, the acquisition request information is not received and the control status information of the changed device is transmitted from the other control device. Since the display of the control status of the device displayed on the screen of the control device is not changed, the display content is automatically contrary to the intention of the user who is changing the control status of the device in another control device. Can be prevented, and a comfortable device control operation as intended by the user can be realized.

  According to the present invention, when the control state information of the device is being changed in the sub control device, the acquisition request information is not transmitted, and until the changed device control state information is transmitted to the main control device. Since the display of the control state of the device displayed on the screen of the sub control device is not changed to the control state information received from the main control device, the control state of the device is changed in the sub control device It is possible to prevent the display content from being automatically changed against the user's intention, and to realize a comfortable device control operation as intended by the user.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a device control communication system according to Embodiment 1 of the present invention. In FIG. 1, the device control communication system includes a first control device 10a, a second control device 10b, a main control device 20, and a device 50. The first control device 10a and the main control device 20 are connected to be communicable with each other via a communication path 30, and the second control device 10b and the main control device 20 are connected to be communicable with each other via a communication path 40. And the device 50 are communicably connected to each other via a communication path 60.

  An operator (user) operates the first control device 10 a to control the device 50 connected through the communication path 60 via the main control device 20 connected through the communication path 30. Further, the operator operates the second control device 10b to control the device 50 connected through the communication path 60 via the main control device 20 connected through the communication path 40. In addition, the operator operates the main controller 20 to control the device 50 connected through the communication path 60. Note that the communication path 30, the communication path 40, and the communication path 60 are, for example, Ethernet (registered trademark) standard, IEEE 1394 standard, Bluetooth (registered trademark), specific low power wireless communication, power line communication, DECT (Digital Enhanced Cordless Telecommunications). , ZigBee, UWB (Ultra Wide Band), telephone line, JEM-A, USB (Universal Serial Bus), and other media. Further, the communication path 30, the communication path 40, and the communication path 60 may use the same medium or may form one subnet.

  The second control device 10b includes a control state information holding unit 100, a control state information changing unit 101, a changed state holding unit 102, a control state information determining unit 103, a request information transmitting unit 104, an acquisition response receiving unit 105, and a periodic updating unit 106. And a control state information display unit 107. Note that the first control device 10a has the same configuration as the second control device 10b, and thus the description thereof is omitted.

  The control state information holding unit 100 combines the address of the main control device 20, the function identification information for specifying the function and setting of the device 50, and the control state information indicating the control state and setting state of the function identification information. Holding at least one control request information data.

  The control state information changing unit 101 changes the control state information held by the control state information holding unit 100 by an operator's operation. The control state information determination unit 103 determines to control the device 50 with the control state information held by the control state information holding unit 100 by an operator's operation.

  When the control state information change unit 101 changes the control state information held in the control state information holding unit 100 by the operator's operation, the change state holding unit 102 is a value indicating that the control state information is being changed ( Status information) "1" (= changing status) is held. Further, when the change state holding unit 102 determines that the device is controlled by the control state information held by the control state information holding unit 100 in the control state information determination unit 103 by the operation of the operator, the control state information Holds a value (state information) “0” (= determined state) indicating that is in a definite state.

  When the change state holding unit 102 holds the value “0” (= confirmed state), the periodic update unit 106 repeats at an arbitrarily determined time interval and acquires the current control state of the device 50 from the main control device 20. Decide that.

  When the control state information determination unit 103 determines the control of the device 50 by the operator's operation, the request information transmission unit 104 has an address of the main control device 20 and at least one control state information indicating the control state of the device 50. Then, control request information including at least one control request code indicating that the device 50 is to be controlled is transmitted as a request type indicating the type of request to the main control device 20. In addition, when the periodic update unit 106 determines acquisition of the control state of the device 50, the request information transmission unit 104 acquires the address of the main control device 20 and the current control state of the device 50 as request type information. Acquisition request information including at least one acquisition request code is transmitted.

  The acquisition response receiving unit 105 receives acquisition response information including at least one control state information of the device 50 as a response to the acquisition request information, and receives the control state information held by the control state information holding unit 100. Change to the control status information included in. The control state information display unit 107 displays the control state of the device 50 on the screen according to the control state information held by the control state information holding unit 100.

  The main control device 20 includes a request information receiving unit 200, an acquisition response transmitting unit 201, a control information holding unit 202, and a device control unit 203. The request information receiving unit 200 receives control request information and acquisition request information from the first control device 10a and the second control device 10b.

  The control information holding unit 202 holds current control state information of the device 50. Further, when the request information receiving unit 200 receives the control request information, the control information holding unit 202 changes the control state information held by itself to the control state information included in the control request information. The device control unit 203 controls the device 50 according to the control state information held by the control information holding unit 202. When the request information receiving unit 200 receives the acquisition request information, the acquisition response transmission unit 201 transmits the control state information held by the control information holding unit 202 to the control source address included in the acquisition request information.

  In the present embodiment, the first control device 10a and the second control device 10b correspond to an example of a sub-control device, the control state information holding unit 100 corresponds to an example of a control state information holding unit, and the control state information The display unit 107 corresponds to an example of a control state information display unit, the control state information change unit 101 corresponds to an example of a control state information change unit, and the request information transmission unit 104 corresponds to an example of a request information transmission unit. The state information determination unit 103 corresponds to an example of a control state information determination unit, the changed state holding unit 102 corresponds to an example of a state information holding unit, the periodic update unit 106 corresponds to an example of a periodic update unit, and an acquisition response is received. The unit 105 corresponds to an example of an acquisition response receiving unit. Further, the request information receiving unit 200 corresponds to an example of a request information receiving unit, the control information holding unit 202 corresponds to an example of a control information holding unit, the device control unit 203 corresponds to an example of a device control unit, and an acquisition response The transmission unit 201 corresponds to an example of an acquisition response transmission unit.

  2 and 3 are flowcharts showing processing of the first control device 10a and the second control device 10b according to Embodiment 1 of the present invention. FIG. 4 is a flowchart showing processing of main controller 20 in Embodiment 1 of the present invention. FIG. 5 is a diagram showing a format of data transmitted and received between the first control device 10a and the main control device 20 and between the second control device 10b and the main control device 20 in the first embodiment of the present invention. is there. FIG. 6 is a diagram illustrating a configuration of a control state information table held by the control state information holding unit 100 of the first control device 10a and the second control device 10b according to Embodiment 1 of the present invention. FIG. 7 is a diagram illustrating a data format of the control state information table held by the control state information holding unit 100 of the first control device 10a and the second control device 10b according to Embodiment 1 of the present invention. FIG. 8 is a diagram for explaining the types of air conditioner function types, the range of values that can be taken by the control state, and the meanings of the values of the control state according to Embodiment 1 of the present invention. FIG. 9 is a diagram showing a configuration of a control state information table held by the control information holding unit 202 of the main controller 20 according to the first embodiment of the present invention. FIG. 10 is a diagram showing a data format of the control state information table held by the control information holding unit 202 of the main control device 20 according to the first embodiment of the present invention.

  First, the first control device 10a, the second control device 10b, and the main control device 20 are activated, and the first control device 10a and the second control device 10b are updated from the main control device 20 by the refresh function by the periodic update unit 106. Processing until the control state of the device 50 is acquired and displayed on the screens of the first control device 10a and the second control device 10b will be described with reference to FIG. 2, FIG. 3, and FIG.

  After the first control device 10a and the second control device 10b are activated, the changed state holding unit 102 holds the value “0” (= determined state) as an initial value (step S101). The regular update unit 106 starts time measurement for regular update (step S102).

  In the first control device 10a, the periodic update unit 106 determines whether or not the measurement time has arbitrarily passed (step S110). The arbitrarily set time in the first embodiment is 15 seconds. When the measurement time in the periodic update unit 106 has arbitrarily determined time (YES in step S110), the periodic update unit 106 stops measuring the time for the periodic update and restarts (step S111).

  Next, the request information transmission unit 104 checks the value held by the change state holding unit 102 and determines whether or not the value is “0” (= confirmed state) (step S112). Here, since the value held by the change state holding unit 102 is “0” (= determined state) (YES in step S112), the request information transmission unit 104 uses the address “20” of the main control device 20 as the transmission destination address. ”, The address“ 00 ”of the first control device 10a as the transmission source address, the acquisition request code“ 01 ”indicating that the control state of the main control device 20 is acquired as the request type information, and the device address of the device 50 Acquisition request information including the address “50”, the air conditioner “00” as the device type information, and “00” indicating the temperature setting of the main control device 20 as the function identification information is transmitted to the main control device 20 (step S113). ). The acquisition request information transmission data at this time is shown in FIG. In FIG. 11, since the value does not have to be stored in the control state information of the final field, it is an indefinite value.

  In FIG. 4, after the main control device 20 is activated, when the request information receiving unit 200 receives the acquisition request information transmitted by the second control device 10b (YES in step S204), the acquisition response transmitting unit 201 displays the transmission destination address. Source address “00” (= first control device 10a) included in the acquisition request information, the address “20” of the main control device 20 as the source address, and the acquisition response code “02” as the request type information. , The address “50” of the device 50 as the device address, the air conditioner “00” as the device type information, the value “00” (= temperature setting) of the function type information included in the acquisition request information as the function type information, and the control information Among the control state information held by the holding unit 202, the control state information corresponding to the function type information “00” (= temperature setting) included in the acquisition request information ( The acquisition response information including a record) and 9 elements No "00" to the first control unit 10a of the destination address (step S205). The acquisition response information transmission data at this time is shown in FIG. In the first embodiment, assuming that the control state of the function identification information “00” (= temperature setting) of the main controller 20 is 20 ° C., the control state information included in the acquisition response information is “20 ° C.”. .

  Returning to FIG. 3, in the first control device 10a, the acquisition response receiving unit 105 receives the acquisition response information from the main control device 20 (YES in step S114). The control state information holding unit 100 includes the function type information “00” (=) of the device response “50” (= device 50) included in the acquisition response information among the control state information held by itself. The control state information corresponding to “temperature setting” is changed to the control state information “20 ° C.” included in the acquisition response information (step S115). A control state information table held by the changed control state information holding unit 100 is shown in FIG. The record to be changed is the record of element number “00” in FIG. The control state information display unit 107 displays “20 ° C.” that is the control state information held by the control state information holding unit 100 on the screen (step S116).

  In the second control device 10b, similarly to the first control device 10a, the processes in steps S110 to S116 are performed, and “20 ° C.” is displayed on the screen. A control state information table held by the changed control state information holding unit 100 is shown in FIG. The record to be changed is the record of element number “00” in FIG.

  Next, in the 2nd control apparatus 10b, the control which changes the temperature of the main control apparatus 20 which is an air conditioner from 20 degreeC to 24 degreeC by operation of an operator is performed, and the temperature of the main control apparatus 20 was changed to 24 degreeC However, the synchronization process reflected as the control state of the main controller 20 held by the first controller 10a will be described with reference to FIGS.

  In the second control device 10b, the control state information changing unit 101 determines whether or not a state change instruction has been input by an operator's operation (step S103). When a state change instruction is input by an operator's operation (YES in step S103), the control state information changing unit 101 changes the control state held by the control state information holding unit 100 (step S104).

  In the first embodiment, the address of the device 50 is “50”, the device type of the device 50 is the air conditioner “00”, and the function identification temperature setting control state is changed from “20 ° C.” to “24 ° C.”. In this case, the control state information holding unit 100 has the device address “50”, the device type information is the air conditioner “00”, the function identification information is the temperature setting “00”, and the control state information is “24 ° C.”. The control state information is held. A control state information table held by the control state information holding unit 100 at this time is shown in FIG. The record to be changed is the record of element No. “00” in FIG.

  Next, the control state information display unit 107 displays “24 ° C.” that is the control state information held by the control state information holding unit 100 on the screen (step S105). The change state holding unit 102 holds the value “1” (= change-in-progress state) (step S106). Next, the request information transmission unit 104 determines whether or not a confirmation instruction has been input by an operator's operation (step S107). When there is a confirmation instruction from the operator to the control state information confirmation unit 103 (YES in step S107), the request information transmission unit 104 sends the control request information including the control state information held by the control state information holding unit 100 to the main controller 20. (Step S108). The contents of the control request information transmission data at this time are shown in FIG. The change state holding unit 102 changes the value to be held to “0” (= confirmed state) (step S109).

  In FIG. 4, the request information receiving unit 200 of the main control device 20 determines whether or not control request information has been received (step S201). When the request information receiving unit 200 receives the control request information transmitted by the second control device 10b (YES in step S201), the control information holding unit 202 includes the device address (device 50) included in the control request information, and the device The control state information “20 ° C.” held by itself corresponding to the type information (air conditioner “00”) and the function type information (temperature setting “00”) is the control state information “24 ° C.” included in the control request information. "And store it (step S202).

  A control state information table held by the control information holding unit 202 at this time is shown in FIG. The record to be changed is the record of element No. “00” in FIG. The device control unit 203 stores control state information “24 ° C.” corresponding to the control state information held by the control information holding unit 202 corresponding to the changed function identification information “00” (= temperature setting). The device 50 is controlled in accordance with (Step S203).

  In the first control device 10a, by performing the processing from step S110 to step S116 in FIG. 3, the device address is “50” (= device 50) in the control state information held by the control state information holding unit 100. Yes, the control status information corresponding to the device type information “00” (= air conditioner) and the function identification information “00” (= temperature setting) is changed to “24 ° C.”. A control state information table held by the control state information holding unit 100 at this time is shown in FIG. The record to be changed is the record of element No. “00” in FIG. By this processing, the control state information of the first control device 10a is synchronized with the same state as the state “24 ° C.” of the main control device 20 and the second control device 10b.

  Next, in the second control device 10b, the temperature setting of the main control device 20 that is an air conditioner is changed from “24 ° C.” to “26 ° C.” by the operator's operation, that is, the control state information is changed. During this, the temperature setting of the device 50 that is an air conditioner is changed to “20 ° C.” by the first control device 10 a via the main control device 20, and the periodic update unit 106 in the second control device 10 b Processing when an arbitrarily determined time has elapsed will be described with reference to FIGS.

  In the second control device 10b, the processing of step S103 to step S106 in FIG. 2 is performed, and the control state information held by the control state information holding unit 100 is changed from “24 ° C.” to “26 ° C.” by the operation from the operator. Be changed. A control state information table held by the control state information holding unit 100 at this time is shown in FIG. The record to be changed is the record of element No. “00” in FIG. At this time, the change state holding unit 102 holds “1” (= change-in-progress state).

  The first control device 10a performs the processing of Steps S103 to S109 in FIG. 2, and the main control device 20 performs the processing of Steps S201 to S203 in FIG. The temperature setting is changed from “24 ° C.” to “20 ° C.” by the control from the first control device 10a.

  In the second control device 10a, when the time “15 seconds” arbitrarily determined by the periodic update unit 106 has elapsed (YES in step S110), the periodic update unit 106 stops measuring the periodic update time, Start (step S111). Next, since the value held by the changed state holding unit 102 is “1” (= the changing state), the request information transmitting unit 104 does not perform processing (NO in step S112), and proceeds to step S114.

  Next, when there is a confirmation instruction from the operator to the control state information confirmation unit 103 (YES in step S107), the request information transmission unit 104 performs main control on control request information including control state information held by the control state information holding unit 100. It transmits to the apparatus 20 (step S108). The contents of the control request information transmission data at this time are shown in FIG. The change state holding unit 102 changes the value to be held to “0” (= confirmed state) (step S109).

  In the main controller 20, the processing of steps S201 to S203 in FIG. 4 is performed, so that the device 50 that is an air conditioner sets the temperature via the main controller 20 under the control of the second controller 10b. Is changed from “20 ° C.” to “26 ° C.”.

  In the first control device 10a, by performing the processing from step S110 to step S116 in FIG. 3, the device address is “50” (= device 50) in the control state information held by the control state information holding unit 100. Yes, the control status information corresponding to the device type information “00” (= air conditioner) and the function identification information “00” (= temperature setting) is changed to “26 ° C.”. A control state information table held by the control state information holding unit 100 at this time is shown in FIG. The record to be changed is the record of element No. “00” in FIG. By this process, the control state information of the first control device 10a is synchronized with the same state as the state “26 ° C.” of the main control device 20 and the second control device 10b.

  Thus, in the first control device 10a and the second control device 10b, at least one control state information indicating the control state of the device 50 is held in the control state information holding unit 100 and held in the control state information holding unit 100. Control status information is displayed. The control state information held in the control state information holding unit 100 is changed, and at least one address indicating the device 50, at least one control state information indicating the control state of the device 50, and a control request code indicating controlling the device 50 are included. The request information transmission unit 104 transmits the control request information including at least the control request information including the address of the device 50 and the acquisition request code indicating that the control state of the device 50 is requested. Thereafter, control of the device 50 based on the control state information held in the control state information holding unit 100 is confirmed, and the request information transmission unit 104 is instructed to transmit control request information. In addition, the change state holding unit 102 holds state information indicating that the control state information is being changed when the control state information is changed, and state information indicating that the control state information is determined when the control state information is determined. Is retained. At this time, when the change state holding unit 102 holds state information indicating that it is in a fixed state, the request information transmitting unit 104 is instructed to transmit the acquisition request information at regular time intervals, and the change state holding unit 102 When the state information indicating the middle state is held, transmission of acquisition request information is not instructed. Then, the acquisition response information including at least the control state information of the device is received as a response to the acquisition request information transmitted by the request information transmission unit 104, and the control state information held by the control state information holding unit 100 is included in the acquisition response information. Changed to included control state information.

  Further, in the main control device 20, when any one of the control request information and the acquisition request information is received and the control request information is received, the control information including at least the control state information included in the received control request information is controlled. It is held in the information holding unit 202. Then, the device 50 is controlled according to the control state information held in the control information holding unit 202. Further, when the acquisition request information is received, acquisition response information including at least the control state information held by the control information holding unit 202 is transmitted.

  Therefore, when the control state information of the device 50 is being changed in the first control device 10a and the second control device 10b, the acquisition request information is not transmitted, and the changed control state information of the device 50 is sent to the main control device 20. Until the transmission, the display of the control state of the device 50 displayed on the screens of the first control device 10a and the second control device 10b is changed to the control state information received from the main control device 20. Therefore, the display content is prevented from being automatically changed against the intention of the user who has changed the control state of the device 50 in the first control device 10a and the second control device 10b. It is possible to realize a comfortable device control operation as is done.

  The acquisition response receiving unit 105 preferably receives hypertext including at least the acquisition response information, and the control state information display unit 107 preferably includes a web browser unit that processes the hypertext and enables browsing. According to this configuration, the hypertext including at least the acquisition response information is received, and the control state information included in the acquisition response information can be displayed by the web browser unit that processes the hypertext and enables browsing.

  The acquisition response transmission unit 201 preferably transmits hypertext based on HTTP (Hypertext Transfer Protocol). According to this configuration, since the hypertext is transmitted based on HTTP, it is possible to reliably transmit the hypertext based on a prescribed protocol.

  Further, the web browser unit has a refresh function for instructing the request information transmission unit 104 to transmit the acquisition request information at regular time intervals, and the periodic update unit 106 is in a state where the change state holding unit 102 is being changed. When the state information indicating that there is something, it is preferable to disable the refresh function. According to this configuration, the web browser unit has a refresh function for instructing the request information transmitting unit 104 to transmit the acquisition request information at regular time intervals, and the change state holding unit 102 is in the changing state. Since the refresh function is disabled when the state information representing the control information is held, the display of the control state of the device 50 displayed on the screens of the first control device 10a and the second control device 10b is contrary to the user's intention. Can be prevented from being changed.

  In the first control device 10a and the second control device 10b, when the operator gives a confirmation instruction to the control state information determination unit 103 (YES in step S107), the request information transmission unit 104 is controlled by the control state information holding unit 100. The control request information including the control state information to be held is transmitted to the main control device 20 (step S108), but when the value held by the change state holding unit 102 is “0” (= confirmed state), It is good also as a structure which does not transmit.

  In the first control device 10a and the second control device 10b, there is a state change instruction to the control state information changing unit 101 by the operator's operation (YES in step S103), and further to the control state information determining unit 103 by the operator's operation. When there is a confirmation instruction (YES in step S107), the request information transmission unit 104 transmits control request information including the control state information held by the control state information holding unit 100 to the main controller 20 (step S108). Although the control for the main control device 20 is implemented, there is not only a confirmation instruction to the control state information confirmation unit 103 by an operator's operation, but also a state change instruction to the control state information change unit 101 by an operator's operation. After an arbitrary time has elapsed, the request information transmission unit 104 is held by the control state information holding unit 100 That the control request information including a control state information may be transmitted to the main controller 20. Thereby, the operator's confirmation operation can be omitted, and the complexity of the operation can be reduced. Further, in this case, it is not necessary to arrange a confirmation button for performing a confirmation operation on the screen, and it is possible to omit an operation interface from the operator.

  In the first control device 10a and the second control device 10b, when the time “15 seconds” arbitrarily determined by the periodic update unit 106 has elapsed (YES in step S110), the change state holding unit 102 holds the time. When the value to be performed is “1” (= change-in-progress state), the request information transmission unit 104 may transmit the acquisition request information to the main control device 20. When the acquisition response receiving unit 105 receives the acquisition response information from the main control device 20, the control state information holding unit 100 indicates that the value held by the changed state holding unit 102 is “1” (= changed state). In some cases, the control state information held by itself may not be changed to the received control state information.

  In this case, when the acquisition response information is received, the control state information held by the control state information holding unit 100 is received when the change state holding unit 102 holds state information indicating that the change state is being changed. The control state information included in the response information is not changed. Therefore, even if the acquisition response information is received from the main control device 20, the control state information is not changed if the control state information is being changed in the first control device 10a and the second control device 10b. It can prevent that the display of the control state of the apparatus 50 currently displayed on the screen of 10a and the 2nd control apparatus 10b is changed against a user's intention.

  Further, the periodic update unit 106 may instruct the request information transmission unit 104 to transmit the acquisition request information at regular time intervals regardless of the content of the state information held by the change state holding unit 102. In this case, since the request information transmitting unit 104 is instructed to transmit the acquisition request information at regular time intervals regardless of the content of the state information held by the changed state holding unit 102, the first control device 10a and the second control Even when the control state information is being changed in the device 10b, the acquisition request information that is periodically transmitted can be transmitted.

  In the first control device 10a and the second control device 10b, the request information transmission unit 104 uses the address “20” of the main control device 20 as the transmission destination address and the address “00” of the first control device 10a as the transmission source address. ”, An acquisition request code“ 01 ”indicating acquisition of the control state of the main controller 20 as request type information, an address“ 50 ”of the device 50 as a device address, an air conditioner“ 00 ”as device type information, The acquisition request information including “00” indicating the temperature setting of the main control device 20 as function identification information is transmitted to the main control device 20 (step S113). For example, not only the temperature setting but also the device 50 If you want to acquire all the control states you have, you can configure the main control to include only the address “50” of the device 50 as the device address in the acquisition request information. Acquisition response transmission unit 201 of the location 20 may be configured to transmit the acquisition response information control information holding unit 202 including all of the control state information held by the device 50 to hold.

(Embodiment 2)
Next, a second embodiment will be described. FIG. 18 is a processing block diagram of the device control communication system according to the second embodiment of the present invention. In FIG. 18, the same components as those in FIG.

  In FIG. 18, the first control device 10a and the second control device 10b include a control state information holding unit 100, a control state information changing unit 101, a changed state holding unit 102, a control state information determining unit 1031, a request information transmitting unit 1041, The acquisition response receiving unit 105, the periodic update unit 106, the control state information display unit 107, and the confirmation timer unit 108 are provided.

  The fixed timer unit 108 starts a timer that is held when the control state information changing unit 101 changes the control state information held in the control state information holding unit 100, and measures the time until an arbitrarily determined time. . The control state information determination unit 1031 determines the control state information held by the control state information holding unit 100 when the determination timer unit 108 finishes measuring until an arbitrarily determined time. When transmitting the control request information, the request information transmitting unit 1041 further starts the timer value in the fixed timer unit 108 at the time when the control state information determining unit 1031 determines the control request information to be transmitted, that is, the timer. The elapsed time from the start to the arbitrarily determined time, or the elapsed time from the start of the timer to the determination of the control state information held by the control state information holding unit 100 by the operator's operation, whichever is shorter Include time as change delay time.

  The main control device 20 includes a request information receiving unit 200, an acquisition response transmitting unit 201, a control information holding unit 2021, a device control unit 203, and a change time comparison unit 204. When the request information receiving unit 200 receives the control request information, the control information holding unit 2021 further holds a control state information change time obtained by subtracting the change delay time included in the control request information from the received time. When the request information receiving unit 200 receives the control request information, the change time comparing unit 204 controls the control state information change time obtained by subtracting the change delay time included in the control request information from the received time, and the control information holding unit 2021. Is compared with the control state information change time held by.

  When the control state information change time of the control request information received by the request information receiving unit 200 is later, as a result of the comparison by the change time comparison unit 204, the control information holding unit 2021 determines the control state information change time and the control information. Holds control state information included in request information. As a result of the comparison by the change time comparison unit 204, the acquisition response transmission unit 201 controls the control information holding unit 2021 to hold when the control state information change time of the control request information received by the request information receiving unit 200 is earlier. The status information is transmitted to the control source address included in the acquisition request information.

  In the present embodiment, the confirmation timer unit 108 corresponds to an example of a confirmation timer unit, the request information transmission unit 1041 corresponds to an example of a request information transmission unit, and the control state information determination unit 1031 includes a control state information determination unit. The change time comparison unit 204 corresponds to an example of a change time comparison unit, and the control information holding unit 2021 corresponds to an example of a control information holding unit.

  19 and 20 are flowcharts showing processing of the first control device 10a and the second control device 10b according to Embodiment 2 of the present invention. FIG. 21 is a flowchart showing processing of main controller 20 in the second embodiment of the present invention. FIG. 22 is a diagram showing a format of data transmitted and received between the first control device 10a and the main control device 20 and between the second control device 10b and the main control device 20 in the second embodiment of the present invention. is there. The configuration of the control state information table held by the control state information holding unit 100 of the first control device 10a and the second control device 10b in Embodiment 2 of the present invention is the same as that shown in FIG. The data format of the control state information table held by the control state information holding unit 100 of the first control device 10a and the second control device 10b in Embodiment 2 of the present invention has the same configuration as that in FIG. . Since the type of function type of the air conditioner, the range of values that can be taken by the control state, and the value of the control state in Embodiment 2 of the present invention are the same as those in FIG. FIG. 26 is a diagram showing a configuration of a control state information table held by the control information holding unit 2021 of the main controller 20 according to the second embodiment of the present invention. FIG. 27 is a diagram showing a data format of the control state information table held by the control information holding unit 2021 of the main controller 20 according to the second embodiment of the present invention.

  First, the temperature setting value of the device 50 that is an air conditioner is 26 ° C., the control information holding unit 2021 of the main control device 20, the control state information holding unit 100 of the first control device 10a, and the control state information holding of the second control device 10b. In the state where the control state held by the unit 100 is all synchronized with “26 ° C.”, the temperature setting value of the device 50 that is an air conditioner is changed from 26 ° C. to 23 ° C. by the operation of the operator in the second control device 10b. The control request is made to the main controller 20. At the same time, the control process in the case where the temperature setting value of the air conditioner 50 is changed from 26 ° C. to 20 ° C. by the operator's operation in the first control device 10a and a control request is sent to the main control device 20 will be described. .

  In the second control device 10b, the control state information changing unit 101 determines whether or not a state change instruction is input by an operator's operation (step S123). When a state change instruction is input by an operator's operation (YES in step S123), the control state information changing unit 101 changes the control state held by the control state information holding unit 100 (step S124). At this time, the control state information changing unit 101 has the device address “50” indicating the address of the device 50 among the control state information held by the control state information holding unit 100, and the device type information indicates the air conditioner. The control state information corresponding to the value “00” and the function identification information “00” indicating the temperature setting is changed from “26 ° C.” to “25 ° C.”.

  Next, the fixed timer unit 108 resets the timer and starts measuring time (step S125). The control state information display unit 107 displays “25 ° C.” that is the control state information held by the control state information holding unit 100 on the screen (step S126). The changed state holding unit 102 holds the value “1” (= the changing state) (step S127).

  And the control state information of the temperature setting of the apparatus 50 which is the air conditioner which the control state information holding | maintenance part 100 hold | maintains by repeatedly performing the process of step S123, step S124, step S125, step S126, and step S127 is "26 degreeC. To “23 ° C.”. The time at this time is assumed to be 10:00:00. FIG. 23 shows a control state information table held by the control state information holding unit 100 at this time. The record to be changed is the record of element No. “00” in FIG.

  In the second embodiment, an arbitrary time from the start of measurement by the fixed timer unit 108 of the second control device 10b to the time-out is set to 15 seconds. The control state information of the temperature setting of the device 50 that is the air conditioner held by the control state information holding unit 100 of the second control device 10b is changed to “23 ° C.” by the above-described processing. Thereafter, before the timeout time of 15 seconds elapses, the first control device 10a repeatedly executes the processes of step S123, step S124, step S125, step S126, and step S127. Thereby, the control state information of the temperature setting of the device 50 that is the air conditioner held by the control state information holding unit 100 is changed to “20 ° C.”. Then, when there is a control state confirmation instruction from the operator to the control state information confirmation unit 1031 (YES in step S128), the confirmation timer unit 108 stops time measurement (step S129).

  Next, the request information transmission unit 1041 transmits control request information including the control state information held by the control state information holding unit 100 and the change delay time measured by the confirmation timer unit 108 to the main control device 20 (step S130). ). Next, the change state holding unit 102 changes the value to be held to “0” (= confirmed state) (step S131). In step S123, the control state information of the temperature setting of the device 50 that is an air conditioner held by the control state information holding unit 100 is changed to “20 ° C.”. A control state information table held by the control state information holding unit 100 at this time is shown in FIG. The record to be changed is the record of element No. “00” in FIG. The time at which the confirmation timer unit 108 starts measuring time in step S125 is set to 10:00:05, and the time when the control state confirmation instruction is issued from the operator to the control state information determination unit 1031 in step S128 is 10:00:10. Then, in step S130, the change delay time included in the control request information transmitted by the request information transmission unit 1041 is 5 seconds obtained by subtracting 10:00:05 from the time 10:00:10 in step S128. The contents of the control request information transmission data at this time are shown in FIG.

  In FIG. 21, the request information receiving unit 200 of the main controller 20 determines whether or not control request information has been received (step S211). When the request information receiving unit 200 receives control request information from the first control device 10a (YES in step S211), the change time comparing unit 204 includes a change delay time 5 included in the control request information received by the request information receiving unit 200. The control state information change time 10:00:05 obtained by subtracting the second from the current time 10:00:10 is compared with the control state information change time included in the control information held by the control information holding unit 202 ( Step S212).

  In the second embodiment, assuming that a sufficient time has passed since the previous control from the first control device 10a or the second control device 10b exceeds the comparison target range, the control request information received this time is Since the control state information change time to be included is later (YES in step S212), the control information holding unit 2021 includes the control state information “20 ° C.” included in the control request information received by the request information receiving unit 200, and The control state information change time 10:00:05 calculated in step S212 is held (step S213). FIG. 28 shows a control state information table held by the control information holding unit 2021 at this time. The record to be changed is the record of element number “00” in FIG. Subsequently, the device control unit 203 controls the device 50 in accordance with the control state information “20 ° C.” held by the control information holding unit 2021 (step S214).

  Returning to FIG. 19, in the second control device 10b, as described above, the control state information of the temperature setting of the device 50 that is the air conditioner held by the control state information holding unit 100 is changed from “26 ° C.” to “23 ° C.”. When 15 seconds have elapsed from the changed time of 10:00:00, the measurement time in the fixed timer unit 108 passes a predetermined timeout period of 15 seconds (YES in step S139), so the fixed timer unit 108 The measurement is stopped (step S129). Subsequently, the request information transmission unit 1041 transmits control request information including the control state information held by the control state information holding unit 100 and the change delay time measured by the confirmation timer unit 108 to the main control device 20 (step S130). . Next, the change state holding unit 102 changes the value to be held to “0” (= confirmed state) (step S131).

  Here, the time when the control state information of the temperature setting of the device 50 which is the air conditioner held by the control state information holding unit 100 in step S123 is changed to “23 ° C.” is 10:00:00, which is confirmed in step S129. Since the time at which the timer unit 108 stopped measuring time is 10:00:15 after 15 seconds, the change delay time included in the control request information transmitted by the request information transmitting unit 1041 is 10 It is 15 seconds obtained by subtracting 10:00:00 from 0:00:15. The contents of the control request information transmission data at this time are shown in FIG.

  In FIG. 21, when the request information receiving unit 200 of the main control device 20 receives control request information from the first control device 10a (YES in step S211), the change time comparing unit 204 receives the control received by the request information receiving unit 200. The control state information change time 10:00:00 obtained by subtracting the change delay time 15 seconds included in the request information from the current time 10:00:15, and the control state included in the control information held by the control information holding unit 202 The information change time 10:00:05 is compared (step S212).

  At this time, since the control state information change time included in the control request information received this time is not later (NO in step S212), the acquisition response transmission unit 201 includes the control state information held by the control information holding unit 2021. The device corresponding to the device address (device 50), device type information (air conditioner “00”), and function type information (temperature setting “00”) included in the control request information received by the request information receiving unit 200 is retained. The acquisition response information including the control state information “20 ° C.” is transmitted to the control source address “10” (second control device 10a) included in the control request information received by the request information receiving unit 200 (step S215). The contents of the acquisition response information transmission data at this time are shown in FIG.

  In the second control device 10a, the processing of step S136 to step S138 of FIG. 20 is performed, and among the control state information held by the control state information holding unit 100, the device address “50” (= device) included in the acquisition response information. 50), the control state information corresponding to the function type information “00” (= temperature setting) included in the acquisition response information is changed to “20 ° C.”, and the control state information display unit 107 sets “ “20 ° C.” is displayed on the screen. By this processing, even if the control request information sent from the second control device 10b is later than the control request information sent from the first control device 10a, the second control state information that has been changed first. The control from the control device 10b becomes invalid, the control from the first control device 10a whose control state information is changed later becomes valid, and the control state information holding unit 100 of the second control device 10b that becomes invalid becomes The control state information to be held is synchronized with the same state “20 ° C.” as the control state information changed by the first control device 10a.

  As described above, when the control state information held by the control state information holding unit 100 is changed, the measurement of the time of the confirmation timer unit 108 is started. When an arbitrarily determined time has elapsed, the measurement is ended, and the confirmation timer When the unit 108 finishes the measurement, the control of the device 50 by the control state information held by the control state information holding unit 100 is confirmed. Therefore, since the control state information is confirmed as the change content after a predetermined time has elapsed since the change, it is possible to save time and labor for confirming the control state information changed by the user.

  In addition, when the control of the device 50 by the control state information held by the control state information holding unit 100 is confirmed, the measurement of the confirmation timer unit 108 is ended, so that it is automatically performed when the control state information is confirmed by the user. The time measurement can be stopped.

  Furthermore, since the definite delay time from when the deterministic timer unit 108 starts measurement until the measurement is completed is transmitted in the control request information, the device 50 can be controlled in consideration of this definite delay time. it can.

  Furthermore, when the control request information is received in the main control device 20, the time obtained by subtracting the fixed delay time included in the control request information from the time when the control request information is received is included in the control information as the change time. . When the control information is already held in the control information holding unit 2021 when the control request information is received, the change time included in the control information and the change time already held in the control information holding unit 2021 If the change time included in the control information is later than the change time already held in the control information holding unit 2021, the control information is newly held in the control information holding unit 2021. Is done.

  Therefore, even when control is concentrated from a plurality of control devices in a short time, the time when the control state of the device is actually changed can be compared, and later control in time can be validated. Can reflect the latest control state.

  In addition, the change time included in the control information is compared with the change time already held in the control information holding unit 2021, and as a result of the comparison, the change time included in the control information is already held in the control information holding unit 2021. If it is before the change time, the control state information included in the control information held by the control information holding unit 2021 is included in the acquisition response information and transmitted to the first control device 10a and the second control device 10b. Therefore, when the control of another control device becomes valid and the control performed by itself becomes invalid, the first control device 10a and the second control device 10b change the control state of the latest device 50 from the main control device 20. Notifications can be received and reflected in the display. Accordingly, the user (operator) can recognize that the control state of the device 50 has been changed by another control device, and feel uncomfortable in the control of the device 50 and the state synchronization of the device 50 by the plurality of control devices. No natural operability can be realized.

  In the first control device 10a and the second control device 10b, the control request information transmitted to the main control device 20 is configured to include the change delay time. However, the main control device is configured to include the last changed time. 20 may be the time included in the control request information received from the first control device 10a and the second control device 10b.

  In this case, the communication speed between the first control device 10a and the main control device 20 and the communication speed between the second control device 10b and the main control device 20 are different from each other in transmission media or transmission distance. It may be different depending on the system configuration environment. When the communication speed is different, the time from when the first control device 10a and the second control device 10b transmit to when the main control device 20 receives the data differs. Therefore, a configuration may be used in which the delay time in the communication path 30 and the communication path 40 is considered in advance based on the difference in communication speed. For example, it may be configured to take into account the time from when the main controller 20 transmits at least one test data to the first controller 10a and the second controller 10b until receiving a reply. Further, in order to increase the accuracy of the delay time, the delay time may be measured periodically.

  The first control device 10a or the second control device 10b may be integrated with the main control device 20. In this case, the integrated request information transmission unit 104 of the first control device 10a or the second control device 10b and the request information reception unit 200 of the main control device 20 may be omitted. As a result of the integration, the controllable device has at least three configurations of the first control device 10a, the second control device 10b, and the main control device 20, and the present embodiment can be used regardless of which control device is used. The effect shown by is obtained.

  The device control communication system according to the present invention makes an acquisition request for the state of a device connected to the main control device at regular time intervals from a sub-control device that mainly uses a web browser to the main control device including the HTTP server. , Device control from multiple sub-control devices that have a refresh function to display the acquired control status on the screen, and control status synchronization means in device control, for home appliance control, lighting control, air conditioning control, etc. in the home network Useful. It can also be applied to applications such as business equipment control, lighting control and air conditioning control in a business building management system and business building energy management system.

It is a block diagram which shows the structure of the apparatus control communication system in Embodiment 1 of this invention. It is a 1st flowchart which shows the process of the 1st control apparatus and 2nd control apparatus in Embodiment 1 of this invention. It is a 2nd flowchart which shows the process of the 1st control apparatus and 2nd control apparatus in Embodiment 1 of this invention. It is a flowchart which shows the process of the main controller in Embodiment 1 of this invention. It is a figure which shows the format of the data transmitted / received between the 1st control apparatus and main controller in Embodiment 1 of this invention, and between the 2nd controller and main controller. It is a figure which shows the table structure of the control state information table which the control state information holding part of the 1st control apparatus in Embodiment 1 of this invention and a 2nd control apparatus hold | maintain. It is a figure which shows the data format of the control state information table which the control state information holding part of the 1st control apparatus in Embodiment 1 of this invention and a 2nd control apparatus hold | maintain. It is a figure for demonstrating the meaning of the type of the function classification of the air conditioner in Embodiment 1 of this invention, the range of the value which a control state can take, and the value of a control state. It is a figure which shows the table structure of the control state information table which the control information holding part of the main controller in Embodiment 1 of this invention hold | maintains. It is a figure which shows the data format of the control status information table which the control information holding part of the main controller in Embodiment 1 of this invention hold | maintains. It is a figure which shows the acquisition request information transmission data which the control information transmission part of the 1st control apparatus in Embodiment 1 of this invention transmits. It is a figure which shows the acquisition response information transmission data which the acquisition response transmission part of the main controller in Embodiment 1 of this invention transmits. It is a figure which shows the content of the control state information table which the control state information holding part of the 1st control apparatus in Embodiment 1 of this invention and a 2nd control apparatus hold | maintain. It is a figure which shows the content of the control state information table which the control state information holding part of the 1st control apparatus in Embodiment 1 of this invention and the control information holding part of a main control apparatus hold | maintain. It is a figure which shows the control request information transmission data which the request information transmission part of the 2nd control apparatus in Embodiment 1 of this invention transmits. It is a figure which shows the content of the control state information table which the control state information holding part of the 1st control apparatus in Embodiment 1 of this invention and a 2nd control apparatus hold | maintain. It is a figure which shows the control request information transmission data which the request information transmission part of the 2nd control apparatus in Embodiment 1 of this invention transmits. It is a block diagram which shows the structure of the apparatus control communication system in Embodiment 1 of this invention. It is a 1st flowchart which shows the process of the 1st control apparatus and 2nd control apparatus in Embodiment 2 of this invention. It is a 2nd flowchart which shows the process of the 1st control apparatus in Embodiment 2 of this invention, and a 2nd control apparatus. It is a flowchart which shows the process of the main controller in Embodiment 2 of this invention. It is a figure which shows the format of the data transmitted / received between the 1st control apparatus and main control apparatus in Embodiment 2 of this invention, and between the 2nd control apparatus and main control apparatus. It is a figure which shows the content of the control state information table which the control state information holding part of the 2nd control apparatus in Embodiment 2 of this invention hold | maintains. It is a figure which shows the content of the control state information table which the control state information holding part of the 1st control apparatus in Embodiment 2 of this invention hold | maintains. It is a figure which shows the control request information transmission data which the request information transmission part of the 1st control apparatus in Embodiment 2 of this invention transmits. It is a figure which shows the table structure of the control status information table which the control information holding part of the main controller in Embodiment 2 of this invention hold | maintains. It is a figure which shows the data format of the control status information table which the control information holding part of the main controller in Embodiment 2 of this invention hold | maintains. It is a figure which shows the content of the control status information table which the control information holding part of the main controller in Embodiment 2 of this invention hold | maintains. It is a figure which shows the control request information transmission data which the request information transmission part of the 2nd control apparatus in Embodiment 2 of this invention transmits. It is a figure which shows the acquisition response information transmission data which the acquisition response transmission part of the main controller in Embodiment 2 of this invention transmits.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10a 1st control apparatus 10b 2nd control apparatus 20 Main control apparatus 30,40,60 Communication path 50 Apparatus 100 Control state information holding part 101 Control state information change part 102 Change state holding part 103,1031 Control state information determination part 104, 1041 Request information transmission unit 105 Acquisition response reception unit 106 Periodic update unit 107 Control state information display unit 108 Confirmation timer unit 200 Request information reception unit 201 Acquisition response transmission unit 202, 2021 Control information holding unit 203 Device control unit 204 Change time comparison unit

Claims (16)

At least one device, a main control device connected to the device and controlling the device, and at least one sub-control device connected to the main control device and controlling the device via the main control device; A device control communication system comprising:
The sub-control device
Control state information holding means for holding at least one control state information indicating the control state of the device;
Control state information display means for displaying control state information held by the control state information holding means;
Control state information changing means for changing the control state information held by the control state information holding means;
Control request information including at least one control state information indicating an address of the device and a control state of the device and a control request code indicating control of the device, or an address of the device and a control state of the device Request information transmitting means for transmitting acquisition request information including at least an acquisition request code indicating that request is made;
Control state information confirming means for confirming control to the device by the control state information retained by the control state information retaining means, and instructing the request information transmitting means to transmit control request information;
When the control state information is changed by the control state information changing unit, state information indicating that the state is being changed is held, and when the control state information is determined by the control state information determining unit, State information holding means for holding state information to be represented;
When holding the state information indicating that the state information holding unit is in a fixed state, the request information transmitting unit is instructed to transmit the acquisition request information at regular time intervals, and the state information holding unit is in a changing state. When holding state information indicating that there is a periodic update means that does not instruct transmission of the acquisition request information,
As a response to the acquisition request information transmitted by the request information transmission unit, the acquisition response information including at least the control state information of the device is received, and the control state information held by the control state information holding unit is received as the acquisition response information. Acquisition response receiving means for changing to the control state information included in
The main controller is
Request information receiving means for receiving any one of the control request information and the acquisition request information;
Control information holding means for holding control information including at least control state information included in the control request information received by the request information receiving means when the request information receiving means receives the control request information;
Device control means for controlling the device according to control state information held by the control information holding means;
When the request information receiving means receives the acquisition request information, the apparatus control communication comprises: an acquisition response transmitting means for transmitting acquisition response information including at least the control state information held by the control information holding means system. The acquisition response receiving means receives hypertext including at least the acquisition response information,
2. The apparatus control communication system according to claim 1, wherein the control status information display means includes web browser means for processing and browsing the hypertext.   3. The apparatus control communication system according to claim 2, wherein the acquisition response transmission unit transmits the hypertext based on a hypertext transfer protocol. The web browser means has a refresh function for instructing transmission of the acquisition request information to the request information transmission means at regular time intervals,
4. The apparatus control communication system according to claim 2, wherein the periodic update unit invalidates the refresh function when the state information holding unit holds state information indicating that the state is being changed. .   When the acquisition response receiving unit holds the state information indicating that the state information holding unit is in a changing state when receiving the acquisition response information, the acquisition response receiving unit stores the control state information held by the control state information holding unit. The device control communication system according to claim 1, wherein the device control communication system does not change to control state information included in the received acquisition response information.   6. The periodic update unit instructs the request information transmission unit to transmit the acquisition request information at regular time intervals regardless of the contents of the state information held by the state information holding unit. Equipment control communication system. The sub-control device starts measuring time when the control state information held by the control state information holding unit is changed by the control state information changing unit, and ends measurement when an arbitrarily determined time has elapsed. A confirmation timer means for
7. The control state information determining unit determines the control of the device based on the control state information held by the control state information holding unit when the determination timer unit finishes the measurement. The device control communication system according to any one of the above.   8. The device according to claim 7, wherein the confirmation timer means ends the measurement when the control state information confirmation means confirms the control of the equipment by the control state information held by the control state information holding means. Control communication system.   The request information transmitting means, when transmitting the control request information, includes a confirmed delay time from when the confirmed timer means starts measurement until the measurement is finished, in the control request information. Item 9. The device control communication system according to Item 7 or 8. When receiving the control request information, the request information receiving means includes, in the control information, a time obtained by subtracting the fixed delay time included in the control request information from a time when the control request information is received. ,
When the request information receiving unit has received the control request information, the main control device, when the control information holding unit has already held the control information, the change time included in the control information and the control information It further comprises a change time comparison means for comparing the change time already held by the holding means,
When the change time included in the control information is later than the change time already held by the control information holding means as a result of the comparison by the change time comparison means, the control information holding means The apparatus control communication system according to claim 9, wherein:   If the change time included in the control information is earlier than the change time already held by the control information holding means as a result of the comparison by the change time comparison means, the acquisition response transmission means The device control communication system according to claim 10, wherein control status information included in control information held by a holding unit is included in the acquisition response information and transmitted to the sub-control device. At least one device, a main control device connected to the device and controlling the device, and at least one sub-control device connected to the main control device and controlling the device via the main control device; A device control communication method for controlling the device from the sub-control device,
The sub-control device includes a control state information holding unit, a control state information display unit, a control state information changing unit, a request information transmitting unit, a control state information determining unit, a state information holding unit, a periodic update unit, and an acquisition response receiving unit. ,
The main control device comprises request information receiving means, control information holding means, device control means and acquisition response sending means,
A control state information holding step in which the control state information holding means holds at least one piece of control state information representing the control state of the device;
A control state information display step in which the control state information display means displays the control state information held by the control state information holding means;
A control state information changing step in which the control state information changing means changes the control state information held by the control state information holding means;
The request information transmission means includes at least one control status information indicating an address of the device, at least one control status information indicating a control status of the device, and a control request code indicating control of the device, or A request information transmission step of transmitting acquisition request information including at least an address and an acquisition request code indicating requesting a control state of the device;
A control state information confirming step in which the control state information confirming means confirms control to the device based on the control state information retained by the control state information retaining means, and instructs the request information transmitting means to transmit control request information; ,
When the control state information is changed by the control state information changing unit, the state information holding unit holds state information indicating a changing state, and the control state information is determined by the control state information determining unit. A state information holding step for holding state information indicating that the state is sometimes determined;
When the periodic update unit holds state information indicating that the state information holding unit is in a fixed state, the request information transmission unit is instructed to transmit the acquisition request information at regular time intervals, and the state information holding is performed. A periodic update step not instructing transmission of the acquisition request information when the state information indicating that the means is in a changing state is held;
The acquisition state receiving unit receives the acquisition response information including at least the control state information of the device as a response to the acquisition request information transmitted by the request information transmitting unit, and the control state held by the control state information holding unit An acquisition response receiving step of changing information to control state information included in the acquisition response information;
A request information receiving step in which the request information receiving means receives any one of the control request information and the acquisition request information;
When the request information receiving means receives the control request information, the control information holding means holds control information including at least control state information included in the control request information received by the request information receiving means. Steps,
A device control step in which the device control means controls the device according to control state information held by the control information holding means;
The acquisition response transmission means includes an acquisition response transmission step of transmitting acquisition response information including at least the control state information held by the control information holding means when the request information receiving means receives the acquisition request information. A device control communication method characterized by the above. A control device connected to another control device for controlling at least one device and controlling the device via the other control device;
Control state information holding means for holding at least one control state information indicating the control state of the device;
Control state information display means for displaying control state information held by the control state information holding means;
Control state information changing means for changing the control state information held by the control state information holding means;
Control request information including at least one control state information indicating an address of the device and a control state of the device and a control request code indicating control of the device, or an address of the device and a control state of the device Request information transmitting means for transmitting acquisition request information including at least an acquisition request code indicating that request is made;
Control state information confirming means for confirming control to the device by the control state information retained by the control state information retaining means, and instructing the request information transmitting means to transmit control request information;
When the control state information is changed by the control state information change unit, state information indicating that the state is being changed is held, and when the control state information is determined by the control state information determination unit, State information holding means for holding state information to be represented;
When holding the state information indicating that the state information holding unit is in a fixed state, the request information transmitting unit is instructed to transmit the acquisition request information at regular time intervals, and the state information holding unit is in a changing state. When holding state information indicating that there is a periodic update means that does not instruct transmission of the acquisition request information,
As a response to the acquisition request information transmitted by the request information transmission unit, the acquisition response information including at least the control state information of the device is received, and the control state information held by the control state information holding unit is received as the acquisition response information. An acquisition response receiving means for changing to the control state information included in the control device. A device control communication program connected to another control device for controlling at least one device and controlling the device via the other control device;
Control state information holding means for holding at least one control state information indicating the control state of the device;
Control state information display means for displaying control state information held by the control state information holding means;
Control state information changing means for changing the control state information held by the control state information holding means;
Control request information including at least one control state information indicating an address of the device and a control state of the device and a control request code indicating control of the device, or an address of the device and a control state of the device Request information transmitting means for transmitting acquisition request information including at least an acquisition request code indicating that request is made;
Control state information confirming means for confirming control to the device by the control state information retained by the control state information retaining means, and instructing the request information transmitting means to transmit control request information;
When the control state information is changed by the control state information change unit, state information indicating that the state is being changed is held, and when the control state information is determined by the control state information determination unit, State information holding means for holding state information to be represented;
When holding the state information indicating that the state information holding unit is in a fixed state, the request information transmitting unit is instructed to transmit the acquisition request information at regular time intervals, and the state information holding unit is in a changing state. When holding state information indicating that there is a periodic update means that does not instruct transmission of the acquisition request information,
As a response to the acquisition request information transmitted by the request information transmission unit, the acquisition response information including at least the control state information of the device is received, and the control state information held by the control state information holding unit is received as the acquisition response information. A device control communication program for causing a computer to function as an acquisition response receiving means for changing to control state information included in the control information. A control device connected to at least one device and at least one other control device that controls the device via a control device, and controls the device;
Control request information including at least one control state information indicating the address of the device, the control state of the device, and a control request code indicating control of the device, and the address of the device and the control state of the device Request information receiving means for receiving any one of acquisition request information including at least an acquisition request code indicating request from the other control device;
Control information holding means for holding control information including at least control state information included in the control request information received by the request information receiving means when the request information receiving means receives the control request information;
Device control means for controlling the device according to control state information held by the control information holding means;
A control apparatus comprising: an acquisition response transmission unit configured to transmit acquisition response information including at least control state information held by the control information holding unit when the request information receiving unit receives the acquisition request information. A device control communication program for controlling the device, connected to at least one device and at least one other control device that controls the device via a control device,
Control request information including at least one control state information indicating the address of the device, the control state of the device, and a control request code indicating control of the device, and the address of the device and the control state of the device Request information receiving means for receiving any one of acquisition request information including at least an acquisition request code indicating request from the other control device;
Control information holding means for holding control information including at least control state information included in the control request information received by the request information receiving means when the request information receiving means receives the control request information;
Device control means for controlling the device according to control state information held by the control information holding means;
When the request information receiving unit receives the acquisition request information, the computer functions as an acquisition response transmitting unit that transmits acquisition response information including at least control state information held by the control information holding unit. Control communication program.

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