KR20210026721A - Device management server and control method thereof - Google Patents

Abstract

The present invention relates to a device management server and a control method thereof. The control method of the device management server in communication with at least one device for changing a self-state in accordance with control of various schemes and transmitting a trigger signal in accordance with a corresponding state change, comprises the steps of: receiving a trigger signal from a predetermined device; and controlling an action in accordance with the corresponding trigger signal when the trigger signal is received. The step of controlling the action includes the steps of: extracting trigger information included in the trigger signal; extracting action information and control object information corresponding to the trigger information extracted in a step (b1) by using a pre-provided matching table; and transmitting a control signal including a triggering action identifier indicating action control in accordance with the trigger signal and the extracted action information to the device corresponding to the control object information extracted in the previous step. The step of controlling the action further includes a step of controlling the action in accordance with the corresponding trigger signal not to be normally performed when the triggering action identifier is included in the trigger signal received from the predetermined device after the transmitting step. Accordingly, a case where an IoT device is not normally operated due to an infinite loop caused by incorrect settings can be prevented.

Description

Device management server and its control method {DEVICE MANAGEMENT SERVER AND CONTROL METHOD THEREOF}

The present invention relates to a device management server and a control method thereof, and more particularly, to a management server that controls an operation of a device according to an external trigger signal, and a control method thereof.

As the Internet of Things (IoT) related technology has recently developed, there are many cases of implementing these IoT functions in various specific devices.

For example, not only lights, televisions, but even certain switches have IoT functions implemented to enable communication with a certain management server, that is, a server that checks and controls the state of the IoT.

Looking at the process in which these IoT devices communicate with the management server, IoT devices transmit information related to the state change to the management server when their state changes, and the management server also sends control signals for state change to IoT devices. Can be transmitted.

Changing the state of each IoT device is not only possible when there is a request from the management server, but the state of each IoT device may also be changed by a signal input through an interface provided in each IoT device.

For example, if the IoT device is a television, the television may be powered on or off according to the control of the management server, or the power on or off state may be turned on or off according to an input through a button provided on the television or an infrared remote control. It could be.

Furthermore, even when the state of the IoT device is changed under the control of the management server, the management server may cause the state of a specific IoT device to change as a trigger signal from another device is received, or the user can connect to his or her portable terminal. The management server may cause the state of a specific IoT device to change according to a request to change the state of each IoT device using an installed app (IoT device management app).

For example, if a user manipulates a television control app provided in his or her smartphone and requests the management server to turn on the television, the management server transmits a control signal according to the request of the app to the television so that the power is turned on. If the switch device and the television are configured to interlock, as another example, when the switch device transmits a kind of trigger signal to the management server as it changes from the off state to the on state, the management server It is also possible to transmit a control signal to the television to turn on the power of the TV.

As such, the state of each IoT device can be changed according to various control methods, among which, if the state of a specific IoT device is changed in conjunction with the state of another device, an unintended problem may occur.

For example, if a plurality of IoT devices are set to operate in connection with each other, they may fall into an infinite loop.

This example is shown in FIG. 1.

In the figure, a plurality of IoT devices are shown, and it is assumed that they are switches, lights, and TVs, respectively.

The management server communicates with each of these IoT devices and can control other devices.For example, assuming that a setting of'Turn off lights when the switch is on' is registered in the management server, the user directly manipulates the switch to control the'on'. When the switch is set to the'on' state, the switch transmits its change to the'on' state to the management server, and the management server transmits a control signal to turn off the lighting, which is an action corresponding to the trigger signal. .

However, assuming that the settings such as'Turn off the light when the switch is on' are registered in the management server as well as'Turn off the TV when the light is off' and'Turn on the switch when the TV is off', you may fall into an infinite loop. There is.

In other words, when the user directly manipulates the switch to turn it on, the management server transmits a control signal to turn off the lamp to the lamp.

Thereafter, when the lighting is turned off and the state change is transmitted to the management server, the management server transmits a control signal to turn off the TV to the TV.

Accordingly, after the TV turns off the power and transmits the state change to the management server, the management server transmits a control signal to turn on the switch to the switch.

The subsequent process is the same as the previous process, and this process becomes infinite repetition.

If you fall into such an infinite loop, for example, even if a user turns off the TV directly or requests to turn off the TV using an app, trigger and action control according to the infinite loop is already performed within a short time. Is maintained and eventually the TV stays on.

In other words, manual direct control by the user is impossible.

Furthermore, in this case, the user may not realize that the IoT control has fallen into an infinite loop, and it may take a long time to correct the error because they simply think that a malfunction has occurred in the IoT device.

Publication Patent No. 10-2019-0044199

The present invention has been conceived to solve the above-described conventional problem, and the object of the present invention is to provide a device management server and a control method thereof that can prevent a case of falling into an infinite loop when several IoT devices are operated in association with each other. To provide.

To be able to prevent it.

In order to achieve the above object, a device management server communicating with at least one device that changes its own state according to various methods of control according to the present invention and transmits a trigger signal according to the corresponding state change is a trigger signal from a predetermined device. A signal receiving unit for receiving; And an action control unit for controlling an action according to a trigger signal received from the signal receiving unit, wherein the action control control unit includes: a trigger information checking unit for checking trigger information included in the trigger signal; An extracting unit for extracting action information and control target information corresponding to the trigger information checked by the trigger information checking unit using a previously provided matching table; And a control signal transmission unit for transmitting a control signal including action information extracted from the extraction unit and a triggering action identifier indicating action control according to a trigger signal to a device corresponding to the control target information extracted from the extraction unit, wherein the When the triggering action identifier is included in a trigger signal received from a predetermined device after the control signal is transmitted by the control signal transmitting unit, the action control unit processes the action control according to the trigger signal to not be performed normally. It is done.

In addition, in order to achieve the above object, a control method of a device management server communicating with at least one device that changes its own state according to various methods of control according to the present invention and transmits a trigger signal according to the corresponding state change, Receiving a trigger signal from a predetermined device; When it is received in the step, the step of performing action control according to a corresponding trigger signal, and the step of performing the action control includes: extracting trigger information included in the trigger signal; Extracting action information and control target information corresponding to the trigger information extracted in step (b1) using an already provided matching table; And transmitting a triggering action identifier indicating action control according to a trigger signal and a control signal including the extracted action information to a device corresponding to the control target information extracted in the step, and after the step, a predetermined device If the triggering action identifier is included in the trigger signal received from the trigger signal, the step of controlling the action control according to the trigger signal is not performed normally.

As described above, according to the present invention, when IoT devices are configured to operate in association with each other, it is possible to prevent the IoT device from operating normally due to an incorrect setting and falling into an infinite loop.

1 is a schematic configuration diagram of a system in which a plurality of conventional IoT devices are controlled by a management server,
2 is a schematic configuration diagram of an entire system including a device management server according to an embodiment of the present invention,
3 is a functional block diagram of the device management server of FIG. 2;
4 is an example of a table showing the relationship between trigger information stored in the storage unit of FIG. 2, action information matched thereto, and control target information,
5 and 6 are examples of a signal and control flow between a device management server and an IoT device according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, each embodiment according to the present invention is merely an example for aiding understanding of the present invention, and the present invention is not limited to this embodiment. In particular, the present invention may be configured with a combination of at least one or more of individual configurations, individual functions, or individual steps included in each embodiment.

Particularly, for convenience, some claims in the claims include alphabets such as'(a)', but these alphabets do not prescribe the order of each step.

In addition, each signal referred to in each embodiment according to the present invention may mean one signal transmitted by one connection or the like, but may also mean a series of signal groups transmitted for the purpose of performing a specific function to be described later. . That is, in each embodiment, a plurality of signals transmitted at a predetermined time interval or transmitted after receiving a response signal from a counterpart device may be expressed as one signal name for convenience.

A schematic configuration of an entire communication system including the device management server 100 according to an embodiment of the present invention is as shown in FIG. 2.

In the figure, a device performs a specific function according to the control of a predetermined device management server 100 or manipulation through an interface (for example, an operation button) provided by itself, and in this embodiment, all IoT (Internet of Things) As an example, it is a device.

Here, the IoT device 200 refers to a device that is connected to a network and operates and communicates with each other or with the device management server 100.

In FIG. 1, as the IoT device 200, a switch device 201, a lighting device 202, and a TV device 203 are illustrated.

Here, the switch device 201 performs an operation of turning the power on or off according to the user's manipulation or the control of the device management server 100, and other functions (for example, motor operation/blocking, or window opening/closing, etc.) It may be directly connected to the device that performs the operation, but in the present embodiment, a description of the device directly connected to the switch device 201 will be omitted.

The lighting device 202 includes a predetermined lamp such as a lamp and performs a function of turning on or off a corresponding lamp according to a user's manual operation or control of the device management server 100.

Hereinafter, the term "light lamp on state" means a state in which power is supplied to the lamp, and the term "light lamp off state" refers to a state in which power is not supplied to the lamp.

A TV (TV) device receives broadcast or video on demand (VOD) broadcast through a wireless or wired cable, and plays and displays it, and is operated manually by a user or controlled by the device management server 100 or Perform an off operation.

Hereinafter, the term'TV on state' refers to a state in which the TV is turned on and a predetermined broadcast, etc. are displayed, and the term'TV off state' refers to a state in which no broadcast or video content is displayed because the TV is turned off. it means.

Each of these IoT devices 200 may transmit a trigger signal including information on its own state to the device management server 100.

For example, the TV may transmit a trigger signal including the OFF state (ie, corresponding to trigger information) to the device management server 100 when its state is changed from the ON state to the OFF state.

In this way, a trigger signal including the result may be transmitted to the device management server 100 not only when the state is changed but also when an operation according to an external request is performed.

For example, the TV may transmit a trigger signal including the OFF state to the device management server 100 even when a request to change it to the OFF state is received from the outside even though its state is currently OFF. .

At this time, when each IoT device 200 includes a predetermined identifier (eg, a triggering action identifier) in the control signal received from the device management server 100, the trigger signal including the identifier after performing a state change, etc. May be transmitted to the device management server 100.

2 illustrates that each IoT device 200 is connected to the device management server 100 by wire, but it is also possible to communicate with the management server 100 via a device such as an AP (Access Point) through wireless communication. Of course.

Meanwhile, the user terminal 300 allows the user to check the status of each IoT device 200 described above or request the device management server 100 to control the operation of each IoT device 200, for example. For example, it may correspond to a smartphone that performs the above-described functions using a predetermined app (APP) or the like.

As described above, the device management server 100 communicates with the user terminal 300 as well as each IoT device 200, and in particular, by generating a predetermined control signal as well as receiving the state of the IoT device 200 Performs a function of transmitting to each IoT device 200.

When the device management server 100 transmits a control signal to the IoT device 200, it can be classified into two broad categories, transmitting a control signal according to the request of the user terminal 300, or another IoT device ( There is a transmission of a control signal according to the trigger signal of 200).

Therefore, in this embodiment, the device management server 100 includes a predetermined identifier in the control signal in order to distinguish the control signal according to the request of the user terminal 300 from the control signal according to the trigger signal of the other IoT device 200. In particular, a triggering action identifier may be included in a control signal according to a trigger signal of another IoT device 200.

Here, the transmission of the control signal according to the trigger signal of the other IoT device 200 is provided with a matching table in which trigger information, action information, and control target information are matched, as previously mentioned in'[Technology behind the invention]. In one state, when a trigger signal including trigger information (which can be referred to as a state change signal) is received from a specific IoT device 200, action information corresponding to the trigger information is converted to a control target corresponding to the trigger information. It means to transmit, but a more detailed description will be provided later.

Detailed functional blocks of the device management server 100 are as shown in FIG. 3.

As shown in the figure, the device management server 100 may include a signal receiver 110, an action control unit 120, and a storage unit 130.

Here, the storage unit 130 stores information, data, and applications necessary for the operation of the device management server 100, as well as various setting values, and furthermore, occurs during the operation of the device management server 100 or receives from the outside. It performs the function of storing additional information and data.

In particular, the storage unit 130 may store a table in which trigger information, action information, and control target information as shown in FIG. 4 are matched.

The signal receiver 110 performs a function of receiving various request or notification signals from the IoT device 200 and the user terminal 300, and in particular, may receive a trigger signal from each IoT device 200.

The action control unit 120 performs action control according to the trigger signal received by the signal receiving unit 110, and includes a trigger information confirmation unit 121, an extraction unit 122, and a control signal transmission unit 123 Can be.

The trigger information checking unit 121 performs a function of checking trigger information included in a trigger signal.

The extraction unit 122 performs a function of extracting action information and control target information corresponding to the trigger information checked by the trigger information confirmation unit 121 by using the matching table stored in the storage unit 130 as shown in FIG. 4.

For example, when the trigger information is'switch ON', the extraction unit 122 may determine that the action target is'lighting' and the action information is'OFF'.

The signal transmission unit may transmit a control signal including action information to a device corresponding to the control target information extracted by the extraction unit 122, and such a control signal may further include a triggering action identifier indicating action control according to a trigger signal. .

That is, the signal transmission unit may transmit a control signal to each IoT device 200 according to the request of the user terminal 300. In this case, the control signal does not include the above-described triggering action identifier because it is not controlled according to a trigger. As described above, the triggering action identifier is included in the corresponding control signal only when the control signal according to the trigger signal of the other IoT device 200 is transmitted as described above.

Here, the triggering action identifier may be included in the control signal as a kind of session information.

Meanwhile, if the triggering action identifier is included in the trigger signal received from a predetermined device after the control signal is transmitted by the control signal transmission unit 123, the action control unit 120 controls the action according to the trigger signal. It is handled so that it does not work normally.

For example, each IoT device 200 may transmit a trigger signal including a corresponding triggering action identifier to the device management server 100 after performing an operation according to a control signal including a triggering action identifier as described above. In this way, when the triggering action identifier is included in the trigger signal received from the IoT device 200, the action control unit 120 processes the action control processing according to the trigger signal so that it is not normally performed.

Here,'that the action control processing according to the trigger signal is performed normally' means that, as described above, the control signal transmission unit 123 is finally specified according to the operation by the trigger information verification unit 121 and the extraction unit 122. It means that the action control signal is normally transmitted to the IoT device 200.

That is, the action control unit 120 analyzes the trigger signal received from the IoT device 200, and if the triggering action identifier is not included in the trigger signal, the action control process is performed according to the trigger information. If the triggering action identifier is included in, it is processed so that action control processing is performed according to the trigger information.

For example, in order to prevent the action control processing according to the trigger signal from being normally performed, the action control unit 120 may drop the corresponding trigger signal, or the trigger information confirmation unit 121 and the extraction unit 122 , It is also possible to control so that an operation by at least one of the control signal transmission unit 123 is not performed.

In this way, when an action control according to a trigger is performed on a specific IoT device 200, a triggering action identifier is included in the corresponding control signal and transmitted, and the IoT device 200 receiving the corresponding control signal is a trigger signal including the action identifier. Sending is prevented from falling into an infinite loop due to a misconfiguration.

That is, a case in which the triggering action identifier is not used will be described with reference to FIG. 4, when the switch device 201 is turned on according to a user's operation, the switch device 201 is a trigger including an'ON state'. The signal is transmitted to the device management server 100, whereby the device management server 100 transmits an'OFF' control signal to the lighting device 202 with reference to the table of FIG. 4, and'OFF' according to the control signal. The operated lighting device 202 transmits a trigger signal including the corresponding'OFF state' to the device management server 100, whereby the device management server 100 refers to the table of FIG. 4 to the TV device 203. The TV device 203, which transmits an'OFF' control signal and operates'OFF' according to the control signal, transmits a trigger signal including a corresponding'OFF state' to the device management server 100.

Accordingly, the device management server 100 transmits an'ON' control signal to the switch device 201 with reference to the table of FIG. 4, and the lighting device 202 operating'ON' according to the control signal is in the corresponding'ON state. The trigger signal including'is transmitted to the device management server 100 again.

Therefore, this process is infinitely repeated.In this way, when the control operation falls into an infinite loop, even if a specific IoT device 200 is manually operated, the infinite loop control is repeated within a short time, resulting in the desired operation according to the manual operation. It will not be done.

Therefore, in this embodiment, a triggering action in transmitting a control signal for a trigger signal of a given IoT device 200 (for example, a switch device 201) to another IoT device 200 (for example, a lighting device 202). The identifier is included in the corresponding control signal, and the corresponding triggering action identifier is included in the trigger signal transmitted after the IoT device 200 (ie, the lighting device 202) performing the control operation according to the corresponding control. By doing so, whether the operation performed by the IoT device 200 (ie, the lighting device 202) is an operation performed by a trigger signal of another IoT device 200 (ie, the switch device 201) or the user's manual It distinguishes whether it is an operation or an operation through the user terminal 300, and in the case of an operation performed by a trigger signal of another IoT device 200 (ie, the switch device 201), the IoT device 200 (ie, The trigger signal received from the lighting device 202 according to the operation result is subjected to drop processing without performing the processing with reference to FIG. 4, thereby preventing the occurrence of an infinite loop.

On the other hand, as another example, even if the triggering action identifier is not included in the trigger signal received from a predetermined device after the control signal is transmitted by the control signal transmission unit 123, the same trigger signal is When received several times or more during a set time period, it may be processed so that action control according to the corresponding trigger signal is not normally performed.

For example, when a trigger signal including trigger information of'switch ON' is received from the switch device 201 for a preset number of times or more for a preset time, even if the triggering action identifier is not included in the trigger signal, the action control unit ( 120) is processing so that the action control according to the corresponding trigger signal is not normally performed.

This means that when each IoT device 200 performs an operation according to a control signal including a triggering action identifier from the device management server 100, the device management server 100 transmits a trigger signal including the triggering action identifier as described above. It is not configured to transmit to, but may be configured to transmit a trigger signal from which the triggering action identifier has been removed (for example, in the case of a non-standard IoT device), in order to prevent falling into an infinite loop even in this case.

That is, when falling into the infinite loop, the same type of trigger signal is repeatedly received from the same IoT device 200, and when the device management server 100 detects this, the action control referring to FIG. 4 is not performed, thereby preventing the infinite loop. To get out of it.

Hereinafter, a signal and a control flow between the device management server 100 and the IoT device 200 according to an embodiment of the present invention will be described with reference to FIGS. 5 to 6.

First, a process of changing the state of the lighting device 202 according to the state change of the switch device 201 based on the table of FIG. 4 will be described with reference to FIG. 5.

When a manual'ON' operation is detected by the user (step S1), the switch device 201 performs an ON operation (step S3), and transmits a trigger signal including an'ON state' to the device management server 100. (Step S5).

In this case, the trigger signal transmitted from the switch device 201 may include information on'Device','Status', and'Type'.

Here,'Device' is for identifying the IoT device 200 that transmits the trigger signal,'Status' is the current status or operation result of the IoT device 200, and'Type' is the status change or operation. As a reason for the reason, the term'natural event' in the present embodiment means a trigger signal according to a direct manual manipulation by a user. Currently, this trigger signal does not contain a separate triggering action identifier.

The device management server 100 receiving such a trigger signal determines whether the triggering action identifier is included (step S7). Since the triggering action identifier is not included in the present embodiment, the device management server 100 determines whether the triggering action identifier is included. Matched action information is extracted with reference to the table in Fig. 4 (step S9).

That is, referring to FIG. 4, since the control target and action information corresponding to ON of the switch device 201 corresponds to'lighting off', control including such action information as well as triggering action identifiers in the lighting device 202 The signal is transmitted (step S11).

The control signal transmitted to the lighting device 202 may include'Device','Control','Type', and'Session' as shown in FIG. 5, where'Device' means a control target, and ' Control' refers to a control command, that is, action information, and'Type' refers to a reason that is the basis for control, and in this embodiment,'Control' is assigned to mean control by the device management server 100. .

In particular,'Session' is an item indicating the triggering action identifier described above, and, for example, a real-time random code (ie,'A12345') value may be assigned.

The lighting device 202, which has received the control signal from the device management server 100, performs a lighting OFF operation according to the corresponding control (step S13).

Next, a process of processing by the device management server 100 according to the trigger signal of the lighting device 202 that has performed the lighting OFF operation through the process of FIG. 5 will be described.

After performing the lighting OFF operation, the lighting device 202 transmits a trigger signal to the device management server 100 as a result of performing the operation (step S21). Status: OFF','Type: Control event', and'Session: A12345' are included in the trigger signal.

In other words, the name of the device named "Light", the state of "OFF", and the Type indicate that the lighting device 202 performs a lighting OFF operation by controlling the lighting device 202. Assigned.

In particular, the lighting device 202 includes a triggering action identifier called a Session item in the trigger signal. In this case, the value of the triggering action identifier is the same as'A12345' which is a value received from the device management server 100 in FIG. 5.

The device management server 100 determines whether the triggering action identifier is included in the trigger signal received from the lighting device 202 (step S23). As described above, the triggering action identifier'Session: A12345' is included. , The device management server 100 drops the trigger signal received from the corresponding lighting device 202 and does not process any more (step S25).

That is, referring to FIG. 4, when a trigger signal including'light lamp OFF' is received, action information'OFF' should be transmitted to the TV device 203, as described above in the trigger signal received from the lamp device 202. Likewise, since the triggering action identifier is included, the device management server 100 performs drop processing without further proceeding.

If the user manipulates the user terminal 300 to request the lighting to be turned off, and the device management server 100 transmits a control signal instructing the lighting to be turned off to the lighting device 202 accordingly, the lighting device 202 ), after processing the corresponding command, transmits a trigger signal including'Device: Light','Status: OFF', and'Type: Control event' to the device management server 100. In this case, the trigger signal is Since the triggering action identifier is not included as shown in FIG. 6, the device management server 100 transmits an'OFF' control signal to the TV device 203 with reference to FIG. 4.

Meanwhile, it goes without saying that the process of performing each of the above-described embodiments may be performed by a program or application stored in a predetermined recording medium (eg, computer-readable). Here, the recording medium includes all of an electronic recording medium such as a random access memory (RAM), a magnetic recording medium such as a hard disk, and an optical recording medium such as a compact disk (CD).

In this case, the program stored in the recording medium may be executed on hardware such as a computer or a smart phone to perform each of the above-described embodiments. In particular, at least one of the functional blocks of the device management server according to the present invention described above may be implemented by such a program or application.

In addition, the present invention is not limited to the specific embodiments described above, but can be implemented by various modifications and modifications without departing from the gist of the present invention. It will be apparent that such modifications and modifications are included in the present invention if they fall within the appended claims.

100: device management server 200: IoT device
300: user terminal 110: signal receiver
120: action control unit 130: storage unit
121: trigger information confirmation unit 122: extraction unit
123: control signal transmission unit

Claims (12)

In the control method of a device management server communicating with at least one device that changes its state according to various methods of control and transmits a trigger signal including its state information,
(a) receiving a trigger signal from a predetermined device;
(b) when received in step (a), performing action control according to a corresponding trigger signal,
The step of performing the action control,
(b1) extracting trigger information included in the trigger signal;
(b2) extracting action information and control target information corresponding to the trigger information extracted in step (b1) using a previously provided matching table;
(b3) transmitting a triggering action identifier indicating an action control according to a trigger signal and a control signal including the extracted action information to a device corresponding to the control target information extracted in step (b2),
(c) when the triggering action identifier is included in the trigger signal received from the predetermined device after the step (b3), controlling the action control according to the trigger signal to not be performed normally. Device management server control method. The method of claim 1,
In the step (c), when the triggering action identifier is not included in the trigger signal received from the predetermined device after the step (b3), the device management server, characterized in that performing action control according to the trigger signal Control method. The method of claim 1,
In the step (c), if the triggering action identifier is included in the trigger signal received from the predetermined device after the step (b3), a corresponding trigger signal is dropped. Way. The method of claim 1,
In the step (c), when the triggering action identifier is included in the trigger signal received from the predetermined device after the step (b3), the step (b1) to step (b3) corresponding to the action control A method of controlling a device management server, characterized in that an operation corresponding to at least one of the operations is not performed. The method of claim 1,
In step (c), even if the triggering action identifier is not included in the trigger signal received from the predetermined device after step (b3), when the same trigger signal is received several times or more during a preset time, the trigger signal is A control method of a device management server, characterized in that controlling so that the corresponding action control is not performed normally. A computer-readable recording medium on which a program for executing the method of any one of claims 1 to 5 is recorded. An application program stored in a computer-readable recording medium to execute the method of any one of claims 1 to 5 in combination with hardware. A device management server that changes its own state according to various methods of control and communicates with at least one device that transmits a trigger signal including the corresponding state information,
A signal receiver for receiving a trigger signal from a predetermined device;
And an action control unit for performing action control according to a trigger signal received by the signal receiving unit,
The action control control unit,
A trigger information checking unit that checks trigger information included in the trigger signal;
An extracting unit for extracting action information and control target information corresponding to the trigger information checked by the trigger information checking unit using a previously provided matching table;
And a control signal transmission unit for transmitting a triggering action identifier indicating action control according to a trigger signal and a control signal including action information extracted from the extraction unit to a device corresponding to the control target information extracted by the extraction unit,
When the triggering action identifier is included in a trigger signal received from a predetermined device after the control signal is transmitted by the control signal transmitting unit, the action control unit processes the action control according to the trigger signal to not be performed normally. Device management server characterized by. The method of claim 8,
When the triggering action identifier is not included in a trigger signal received from a predetermined device after the control signal is transmitted by the control signal transmission unit, the action control unit controls to perform an action control according to the trigger signal. Device management server. The method of claim 8,
The action controller is a device, characterized in that, after the control signal is transmitted by the control signal transmission unit, when the triggering action identifier is included in the trigger signal received from a predetermined device, the corresponding trigger signal is dropped. Management server. The method of claim 8,
When the triggering action identifier is included in a trigger signal received from a predetermined device after the control signal is transmitted by the control signal transmitting unit, the action control unit includes the trigger information checking unit, the extracting unit, and the control signal transmitting unit. Device management server, characterized in that for controlling so that an operation by at least one of them is not performed. The method of claim 8,
Even if the triggering action identifier is not included in the trigger signal received from a predetermined device after the control signal is transmitted by the control signal transmitting unit, the action control unit corresponds to the case where the same trigger signal is received several times or more during a preset time. Device management server, characterized in that for controlling so that the action control according to the trigger signal is not normally performed.

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