JP7245999B2 - Control information acquisition system and control information acquisition method - Google Patents

Description

The present invention relates to a control information acquisition system and a control information acquisition method for controlling equipment via a public communication network.

A service called VPA (Virtual Personal Assistance) for operating a device by voice is becoming popular. A home appliance control system is disclosed in which a sound collector connectable to a network collects voice information and controls the home appliance via the network based on the collected voice information.

WO2014/171144

In a control system such as a voice control system, when control information for controlling devices is transmitted via a public communication network such as the Internet, there is a risk that the devices may be remotely controlled based on unauthorized control information.

The present invention provides a control information acquisition system and a control information acquisition method capable of authenticating control information.

A control information acquisition system according to an aspect of the present invention is a control system that outputs control information for controlling a device based on information input to a terminal via a public communication network, the control information and the control information It comprises a first acquisition unit that acquires first authentication information used for authentication, and a second acquisition unit that acquires second authentication information used for authentication without going through the public communication network.

A control information acquisition method according to an aspect of the present invention includes the control information and the control information via a public communication network from a control system that outputs control information for controlling a device based on information input to a terminal. First authentication information used for authentication is acquired, and second authentication information used for authentication is acquired without going through the public communication network.

A program according to an aspect of the present invention is a program for causing a computer to execute the control information acquisition method.

ADVANTAGE OF THE INVENTION According to this invention, the control information acquisition system and control information acquisition method which can authenticate control information are implement|achieved.

FIG. 1 is a block diagram showing a functional configuration of a speech recognition system according to Embodiment 1. FIG. FIG. 2 is a sequence diagram of an operation example of the speech recognition system according to Embodiment 1. FIG. FIG. 3 is a flowchart of authentication/device control according to the first embodiment. FIG. 4 is a sequence diagram when the second authentication information is transmitted from an out-of-home voice input terminal. FIG. 5 is a flowchart of authentication/device control according to the modification of the first embodiment. FIG. 6 is a block diagram showing the functional configuration of the speech recognition system according to Embodiment 2. As shown in FIG.

Hereinafter, embodiments will be specifically described with reference to the drawings. It should be noted that the embodiments described below are all comprehensive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are examples and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest concept will be described as arbitrary constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected with respect to substantially the same structure, and the overlapping description may be abbreviate|omitted or simplified.

(Embodiment 1)
[composition]
First, the configuration of the speech recognition system according to Embodiment 1 will be described. FIG. 1 is a block diagram showing a functional configuration of a speech recognition system according to Embodiment 1. FIG.

As shown in FIG. 1, a speech recognition system 10 according to Embodiment 1 includes a speech control system 20, a device control system 30, and a router . A voice input terminal 21 of the voice control system 20, a control target device 50 of the device control system 30, and a router 70 are installed in the home. The voice recognition server 22 of the voice control system 20 and the device control server 40 of the device control system 30 are realized as a cloud (cloud server). FIG. 1 also shows a voice input terminal 80 placed outside the home.

[Configuration of voice control system]
The voice control system 20 is a system for controlling devices to be controlled using voice as an input. Voice control system 20 is an example of a control system. A voice control system 20 includes a voice input terminal 21 and a voice recognition server 22 . The voice control system 20 may include voice input terminals other than the voice input terminal 21 (for example, voice input terminal 80).

The voice input terminal 21 is a voice input interface device that acquires the voice of a user at home. The voice input terminal 21 is an example of a voice acquisition unit. The voice input terminal 21 is, for example, a stationary terminal such as a smart speaker, and is installed in a space where people are expected to be present. The voice input terminal 21 may be a mobile terminal such as a smart phone. The voice input terminal 21 may be any device as long as it has a sound collecting device such as a microphone and a communication circuit for transmitting the acquired voice signal to the voice recognition server 22 .

The router 70 is a relay device that relays a local communication network inside the home and a wide area communication network outside the home (for example, a public network such as the Internet). The router 70, for example, transmits the audio signal of the audio acquired by the audio input terminal 21 to the audio recognition server 22 on the cloud.

The voice recognition server 22 is a server that performs voice recognition processing on voice signals transmitted from the voice input terminal 21 . A business that provides a speech recognition service uses the speech recognition server 22 to provide the speech recognition service. The speech recognition server 22 converts, for example, a speech signal transmitted from the speech input terminal 21 into text information, and converts the text information into a command corresponding to the text information. A command is an example of voice control information for controlling a device based on voice acquired by the voice input terminal 21 . For example, if the text information indicates the text "turn on the air conditioner", such text information is converted into a command for starting the operation of the air conditioner. Also, the voice recognition server 22 transmits the command to the device control server 40 of the device control system 30 .

[Configuration of equipment control system]
The equipment control system 30 is a system that cooperates with the voice control system 20 to control equipment to be controlled installed in the home. The device control system 30 is an example of a control information acquisition system. The device control system 30 includes a device control server 40 and controlled devices 50 .

The device control server 40 is a server that controls the indoor control target device 50 based on commands transmitted from the voice recognition server 22 . A business operator that provides a device control service uses the device control server 40 to provide the device control service. The device control server 40 includes a first communication section 41 , a first control section 42 and a first storage section 43 .

The first communication unit 41 communicates with the voice control system 20 . The first communication unit 41 is an example of a first acquisition unit. Specifically, the first communication unit 41 acquires voice control information from the voice control system 20 via a public communication network such as the Internet. Audio control information is an example of control information. As mentioned above, the voice control information is, for example, commands sent by the voice recognition server 22 . The first communication unit 41 is realized by, for example, a communication circuit.

The first control unit 42 converts the command acquired by the first communication unit 41 into an individual command for controlling the indoor control target device 50 . The first control unit 42 also uses the first communication unit 41 to transmit the individual command to the control target device 50 . Text information may be transmitted from the voice recognition server 22 as the voice control information, and the first control unit 42 may convert the text information into commands and the commands into individual commands. The first control unit 42 is implemented by, for example, a microcomputer or processor.

The first storage unit 43 is a storage device in which programs executed by the first control unit 42 are stored. The first storage unit 43 is implemented by, for example, a semiconductor memory.

The control target device 50 is a device that receives an individual command transmitted by the first communication unit 41 of the device control server 40 and operates according to the received individual command. The control target device 50 is, for example, a home appliance such as an air conditioner, but may be a device other than a home appliance such as a locking device for fittings (for example, an entrance door). Further, the devices to be controlled by the device control system 30 may include not only the device to be controlled 50 but also the voice input terminal 21 .

As described above, in the voice recognition system 10 , remote control of the control target device 50 is realized through the intervention of the voice recognition server 22 and cloud servers such as the device control server 40 . Device control via such a cloud server improves the flexibility and expandability of cooperation between devices.

On the other hand, in the device control via the cloud server, the control target device 50 is based on whether the control instruction such as the individual command is based on the voice input to the voice input terminal 21 in the same home or in the same local communication network. The problem is that it is difficult to determine whether the voice is based on the voice input to the voice input terminal 80 outside the home. For example, a third party who physically takes the voice input terminal 21 outside, or a third party who uses the voice input terminal 21 disguised as the voice input terminal 21, controls the control target device 50 in the house. problems can occur.

Therefore, when the voice input terminal 21 acquires the voice, the voice input terminal 21 transmits the first authentication information to the voice recognition server 22 in addition to the voice signal. The first authentication information is information used for authentication of voice control information transmitted from the voice control system 20 to the device control system 30 . The first authentication information is transmitted to device control system 30 via a wide area communication network including a public communication network such as the Internet. The first communication unit 41 of the device control server 40 acquires first authentication information from the voice control system 20 via a public communication network such as the Internet. The acquisition route at this time is the acquisition route r1 in FIG.

On the other hand, the voice input terminal 21 transmits second authentication information as another information used for authentication of voice control information. The second authentication information is information paired with the first authentication information. The second authentication information is transmitted to device control system 30 via a local communication network that does not include a public communication network such as the Internet. The acquisition route at this time is acquisition route r2 or acquisition route r3 in FIG.

The device control system 30 acquires the first authentication information and the second authentication information, and determines whether or not the first authentication information and the second authentication information are in a corresponding relationship. When the first authentication information and the second authentication information are in a corresponding relationship, the device control system 30 is based on voice input to the home voice input terminal 21 and is presumed to be reliable. The control target device 50 is controlled based on the voice control information.

On the other hand, if the first authentication information and the second authentication information are not in a corresponding relationship, or if the device control system 30 cannot acquire the second authentication information, the device control system 30 may perform voice control under certain restrictions. The controlled device 50 is controlled based on the information. Alternatively, in such a case, the device control system 30 does not control the controlled device 50 based on the voice control information.

As a result, the device control system 30 can safely control the control target device 50 while maintaining the flexibility and expandability of cooperation between devices, which are advantages of device control via a cloud server.

[Specific Configuration of Device to be Controlled]
In Embodiment 1, authentication using the first authentication information and the second authentication information is performed in the controlled device 50 . The specific configuration of the control target device 50 will be described below with continued reference to FIG. The controlled device 50 includes a second communication section 51 , a second control section 52 and a second storage section 53 .

The second communication unit 51 receives the individual command and the first authentication information transmitted by the first communication unit 41 of the device control server 40 via the router 70 . Also, the second communication unit 51 is an example of a second acquisition unit, and acquires the second authentication information used for the authentication without going through a public communication network such as the Internet. The second communication unit 51 is realized by, for example, a communication circuit.

The second control unit 52 performs device control based on the voice control information based on the acquired first authentication information and the acquired second authentication information. For example, when the control target device 50 is an air conditioner, the second control unit 52 performs air conditioning control. The second control unit 52 is implemented by, for example, a microcomputer, but may be implemented by a processor.

The second storage unit 53 is a storage device that stores programs and the like executed by the second control unit 52 . Also, the second authentication information acquired by the second communication unit 51 is stored in the second storage unit 53 . Specifically, the second storage unit 53 is realized by a semiconductor memory or the like.

[Operation example of voice recognition system]
Next, an operation example of the speech recognition system will be described. FIG. 2 is a sequence diagram of an operation example of the speech recognition system.

First, the voice input terminal 21 transmits the second authentication information (S11). The second authentication information is, for example, one-time authentication identification information (authentication ID), and is disposable information valid only for a predetermined period. The second authentication information is transmitted, for example, by direct wireless communication using the BLE (Bluetooth (registered trademark) Low Energy) protocol. That is, the second authentication information is transmitted by wireless communication with a limited communication range. The second authentication information may be transmitted without using a public communication network, and may be transmitted by any type of wired or wireless communication.

The second communication unit 51 of the controlled device 50 acquires the second authentication information (S12), and the second control unit 52 stores the second authentication information in the second storage unit 53 (S13). While the first communication unit 41 acquires the voice control information and the first authentication information by communicating within a vast first communication range using a public communication network or the like, the second communication unit 51 acquires the first Second authentication information is acquired by communicating within a second communication range, which is narrower than the communication range. As a result, falsification of the second authentication information is suppressed, and the reliability of the second authentication information can be enhanced.

The second communication range narrower than the first communication range means, for example, that the physical distance over which the second authentication information can be transmitted is shorter than the physical distance over which the first authentication information can be transmitted. do. The second communication range is, for example, the reach of radio waves for wireless communication used to acquire the second authentication information.

After that, the voice input terminal 21 acquires voice with a microphone (S14), and transmits a voice signal of the acquired voice and the first authentication information (S15). The first authentication information is, for example, the same authentication identification information as the second authentication information.

The voice recognition server 22 receives the voice signal and the first authentication information transmitted by the voice input terminal 21 (S16). The speech recognition server 22 converts the speech signal into text information, and converts the text information into commands (ie, voice control information) corresponding to the text information. The voice recognition server 22 then transmits the voice control information and the first authentication information to the device control server 40 (S17). The first authentication information may be embedded in the voice control information or transmitted separately from the voice control information.

The first communication unit 41 of the device control server 40 acquires the voice control information and the first authentication information (S18). The first control unit 42 converts the acquired voice control information into individual commands. Then, the first communication unit 41 transmits the individual command and the first authentication information to the controlled device 50 (S19).

The second communication unit 51 of the control target device 50 acquires the individual command and the first authentication information (S20). The second control unit 52 performs authentication using the acquired first authentication information and the second authentication information stored in the second storage unit 53, and performs device control based on the authentication result (S21). FIG. 3 is a flow chart showing the details of authentication/device control in step S21.

[Details of authentication and device control]
As shown in FIG. 3, the second control unit 52 determines whether it is within a predetermined period of time after the acquisition of the second authentication information (S22). When the second control unit 52 determines that it is within a predetermined period of time after the acquisition of the second authentication information (Yes in S22), the second control unit 52 determines whether the first authentication information and the second authentication information match ( S23).

When the second control unit 52 determines that the first authentication information and the second authentication information match (Yes in S23), the voice control information acquired in step S18 (more specifically, the individual command) is performed (S24). For example, if the controlled device 50 is an air conditioner and the control instructed by the voice control information is the control to turn on the air conditioner, the second control unit 52 turns on (starts) the air conditioner.

On the other hand, if it is determined in step S22 above that a predetermined period of time or more has elapsed since the acquisition of the second authentication information (No in step S22), and in step S23 above, the second control unit 52 If it is determined that the first authentication information and the second authentication information do not match (No in S23), device control is performed based on the voice control information under certain restrictions (S25). In step S25, device control based on the audio control information may not be performed. In other words, the second control unit 52 may ignore the audio control information without complying with the audio control information.

In addition, as described above, the second authentication information is transmitted, for example, by wireless communication with a limited communication range. Then, as shown in FIG. 4, the second authentication information transmitted from the voice input terminal 80 outside the home may not reach the controlled device 50, and the second communication unit 51 may not be able to acquire the second authentication information. . FIG. 4 is a sequence diagram when the second authentication information is transmitted from the voice input terminal 80 outside the home. In such a case as well, device control is performed based on the voice control information under certain restrictions, as in step S25.

In this case, if the control target device 50 is an air conditioner and the control instructed by the voice control information is the control for cooling the air conditioner at 25° C., the control performed under certain restrictions is the air conditioner. is controlled to perform cooling operation at 28°C. In other words, the second control unit 52 limits control so as to avoid excessive cooling (reduce power consumption) because it is estimated that the user who uttered the voice that is the basis of the voice control information is not in the house. In other words, the second control unit 52 performs control different from the control instructed by the voice control information.

Note that the first authentication information and the second authentication information are not limited to the authentication identification information, one of the first authentication information and the second authentication information is encrypted information, and the other of the first authentication information and the second authentication information may be a key for decrypting encrypted information. Also, one of the first authentication information and the second authentication information may be a hash value for checking whether the other of the first authentication information and the second authentication information has been tampered with. That is, in step S23, it may be determined whether or not the first authentication information and the second authentication information are in a corresponding relationship. The second control unit 52 performs device control based on the voice control information when the first authentication information and the second authentication information are in a corresponding relationship.

As described above, the device control system 30 can authenticate the voice control information using the first authentication information and the second authentication information. Since the second authentication information is obtained without using a public communication network, it is less likely to be falsified. Therefore, the device control system 30 can authenticate the voice control information.

Specifically, the device control system 30 can determine whether or not the voice control information is reliable based on the above authentication. Further, the device control system 30 can also estimate whether or not the voice control information is based on the voice input to the voice input terminal 21 located near the control target device 50 through the above authentication.

[Modified example of authentication/device control details]
In the above authentication, information related to the acquired second authentication information may be further used. For example, in authentication, the received signal strength indication (RSSI) of the second authentication information may be further used. FIG. 5 is a flowchart of authentication/device control according to the modification.

In the example of FIG. 5, in addition to the determination in step S22 and the determination in step S23, the second control unit 52 determines whether or not the reception strength of the second authentication information is equal to or greater than a predetermined value (S26 ). The reception strength is an example of information related to the second authentication information, and more specifically, information indicating the reception state of the second authentication information. In this case, the second communication unit 51 measures the reception intensity when the second authentication information is received, and stores it in the second storage unit 53 . In step S26, the second control unit 52 refers to the reception intensity stored in the second storage unit 53, and determines whether or not the reception intensity is greater than or equal to a predetermined value.

When the second control unit 52 determines that the reception intensity is equal to or greater than the predetermined value (Yes in S26), it performs device control based on the audio control information acquired in step S18 (S24). On the other hand, when the second control unit 52 determines that the reception intensity is less than the predetermined value (Yes in S26), it performs device control based on the voice control information under certain restrictions (S25).

For example, the controlled device 50 is a lighting device installed on the first floor of the house, the voice input terminal 21 is installed on each of the first and second floors of the house, and the voice input terminal 21 on the first floor is installed. You may want to enable only voice input to . However, if the second authentication information from the voice input terminal 21 installed on the second floor reaches the controlled device 50, the controlled device 50 will be controlled.

Here, if the reception strength is determined as shown in the flowchart of FIG. 5, voice input to the voice input terminal 21 located near the control target device 50 among the voice input terminals 21 installed in the same home is selected. can be effectively enabled.

Note that a method of changing the transmission destination is also conceivable as a method by which only a specific controlled device 50 can acquire both the first authentication information and the second authentication information. For example, when both the first authentication information and the second authentication information are transmitted through a wired LAN or a wireless LAN, the first authentication information is transmitted to the server by unicast communication, and the second authentication information is transmitted by multicast communication. Alternatively, if it is transmitted to the home LAN by broadcast communication, only the control target device 50 inside the home can acquire both the first authentication information and the second authentication information.

(Embodiment 2)
[composition]
Next, the configuration of the speech recognition system according to Embodiment 2 will be described. FIG. 6 is a block diagram showing the functional configuration of the speech recognition system according to Embodiment 2. As shown in FIG. Note that the functional configurations of the device control server 40 and the controlled device 50 are simplified in FIG.

As shown in FIG. 6 , the device control system 30a included in the speech recognition system 10a according to the second embodiment includes a device control server 40, a control device 90, and a control target device 50. In Embodiment 2, authentication using the first authentication information and the second authentication information is performed in the control device 90 .

The control device 90 is a device that controls home equipment. The control device 90 is, for example, a HEMS (Home Energy Management System) controller (in other words, a home gateway). The control device 90 includes a third communication section 91 , a third control section 92 and a third storage section 93 .

The third communication unit 91 receives the individual command and the first authentication information transmitted by the first communication unit 41 of the device control server 40 via the router 70 . Also, the third communication unit 91 is an example of a second acquisition unit, and acquires the second authentication information from the voice input terminal 21 of the voice control system 20 . The third communication unit 91 is implemented by, for example, a communication circuit.

The third control unit 92 performs device control based on the voice control information based on the obtained first authentication information and the obtained second authentication information. Specifically, the third control unit 92 transmits a control command for controlling the controlled device 50 to the third communication unit 91 based on the acquired first authentication information and the acquired second authentication information. Let Upon receiving the control command, the controlled device 50 operates based on the received control command. The third control unit 92 is implemented by, for example, a microcomputer, but may be implemented by a processor.

The third storage unit 93 is a storage device that stores programs and the like executed by the third control unit 92 . The second authentication information acquired by the third communication unit 91 is stored in the third storage unit 93 . Further, the third storage unit 93 is specifically implemented by a semiconductor memory or the like.

As described above, in the voice recognition system 10a, authentication using the first authentication information and the second authentication information is performed in the control device 90 instead of the control target device 50. FIG. In other words, introduction of the control device 90 realizes authentication of the voice control information.

(effects, etc.)
As described above, the device control system 30 receives voice control information from the voice control system 20, which outputs voice control information for controlling devices based on the voice input to the voice input terminal 21, via the public communication network. and a first communication unit 41 for acquiring first authentication information used for authentication of voice control information; and a second communication unit 51 for acquiring second authentication information used for authentication without going through a public communication network. A voice input terminal is an example of a terminal, and voice is an example of information input to a terminal. The voice control information is an example of control information, the voice control system 20 is an example of a control system, and the equipment control system 30 is an example of a control information acquisition system.

Such a device control system 30 can authenticate the voice control information using the first authentication information and the second authentication information.

Further, for example, the device control system 30 further includes a second control unit 52 that performs device control based on voice control information based on the acquired first authentication information and the acquired second authentication information.

Such a device control system 30 can perform device control according to the result of authentication using the first authentication information and the second authentication information.

Also, for example, when the first authentication information and the second authentication information are in a corresponding relationship, the second control unit 52 performs device control based on the voice control information.

Such a device control system 30 can perform device control when authentication using the first authentication information and the second authentication information is successful.

Further, for example, when the first communication unit 41 acquires the first authentication information corresponding to the second authentication information within a predetermined period after the acquisition of the second authentication information, the second control unit 52 controls the voice control information device control based on

Such a device control system 30 can perform highly reliable authentication by setting a time limit for acquiring the first authentication information.

Also, for example, the second control unit 52 performs device control based on the control information based on the acquired information related to the second authentication information, the first authentication information, and the second authentication information.

In such a device control system 30, highly reliable authentication can be performed by adding restrictions on information related to the second authentication information as conditions for successful authentication.

Also, for example, the first communication unit 41 acquires the control information and the first authentication information by communicating within the first communication range, and the second communication unit 51 has a narrower communication range than the first communication range. Second authentication information is acquired by communicating within the second communication range.

In such a device control system 30, the controlled device 50 located far from the voice input terminal 21 cannot acquire the second authentication information. In other words, the control target device 50 located near the voice input terminal 21 can acquire the second authentication information and can perform device control based on the voice control information.

(Other embodiments)
Although the embodiments have been described above, the present invention is not limited to the above embodiments.

For example, in the above embodiments, the information input to the terminal is voice, and the control system outputs control information based on the voice. However, the terminals included in the control system are not limited to voice input terminals. A terminal included in the control system may be, for example, a terminal that receives input from a user's button operation. In other words, the terminal included in the control system may be a terminal that does not have a voice input function. The control system may output control information based on information input to the terminal by the user's button operation. Also, the present invention may be implemented as software installed in a general-purpose mobile terminal, such as a smartphone application. Such software operates a general-purpose portable terminal as a terminal corresponding to the control system.

Also, the communication method between devices in the above embodiment is not particularly limited. Wireless communication may be performed between the devices, or wired communication may be performed. Also, wireless and wired communications may be combined between devices.

Further, in the above-described embodiments, the processing executed by a specific processing unit may be executed by another processing unit. In addition, the order of multiple processes may be changed, and multiple processes may be executed in parallel.

Further, in the above embodiments, components such as the control unit may be implemented by executing software programs suitable for each component. Each component may be realized by reading and executing a software program recorded in a recording medium such as a hard disk or a semiconductor memory by a program execution unit such as a CPU or processor.

Also, components such as the control unit may be realized by hardware. For example, a component such as a controller may be a circuit (or integrated circuit). These circuits may form one circuit as a whole, or may be separate circuits. These circuits may be general-purpose circuits or dedicated circuits.

Also, general or specific aspects of the present invention may be implemented in a system, apparatus, method, integrated circuit, computer program or recording medium such as a computer-readable CD-ROM. Also, any combination of systems, devices, methods, integrated circuits, computer programs and recording media may be implemented.

For example, the present invention may be implemented as a device to be controlled or a control device. Further, the present invention may be implemented as a control information acquisition method, a program for causing a computer to execute the control information acquisition method, or a non-temporary program in which such a program is recorded. It may be implemented as a recording medium.

Also, each system described in the above embodiments may be implemented as a single device, or may be implemented by a plurality of devices. When the system is implemented by a plurality of devices, the components provided in the system described in the above embodiment may be distributed among the plurality of devices in any way.

In addition, forms obtained by applying various modifications to each embodiment that a person skilled in the art can think of, or realized by arbitrarily combining the constituent elements and functions of each embodiment without departing from the spirit of the present invention. Also included in the present invention.

20 voice control system (control system)
21 voice input terminal (terminal)
22 voice recognition server 30, 30a device control system (control information acquisition system)
41 First Communication Department (First Acquisition Department)
50 controlled device 51 second communication unit (second acquisition unit)
91 third communication unit (second acquisition unit)

Claims (9)

Acquiring the control information and first authentication information used to authenticate the control information from a control system that outputs control information for controlling equipment based on information input to a terminal via a public communication network an acquisition unit;
A control information acquisition system comprising: a second acquisition unit that acquires second authentication information used for the authentication via a local communication network that does not include the public communication network. 2. The control information acquisition system according to claim 1, further comprising a control unit that performs device control based on the control information based on the acquired first authentication information and the acquired second authentication information. 3. The control information acquisition system according to claim 2, wherein the control unit performs device control based on the control information when the first authentication information and the second authentication information are in a corresponding relationship. The control unit controls the device based on the control information when the first acquisition unit acquires the first authentication information corresponding to the second authentication information within a predetermined period after the acquisition of the second authentication information. The control information acquisition system according to claim 3, wherein control is performed. The control unit performs device control based on the control information based on the acquired information related to the second authentication information, the first authentication information, and the second authentication information. The control information acquisition system according to any one of claims 1 to 3. The first acquisition unit acquires the control information and the first authentication information by communicating within a first communication range,
6. The second acquisition unit according to any one of claims 1 to 5, wherein the second acquisition unit acquires the second authentication information by communicating within a second communication range narrower than the first communication range. Control information acquisition system. The information input to the terminal is voice,
The control information acquisition system according to any one of claims 1 to 6, wherein the control system outputs the control information based on the voice. Acquiring the control information and first authentication information used to authenticate the control information from a control system that outputs control information for controlling a device based on information input to a terminal via a public communication network;
A control information acquisition method for acquiring second authentication information used for the authentication via a local communication network that does not include the public communication network. A program for causing a computer to execute the control information acquisition method according to claim 8.

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