JP2014020790A - Information terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information terminal capable of achieving power saving by suppressing the power source of an apparatus from being left over a long time in an on-state even when the power source of the apparatus is left switched on by a user.SOLUTION: A tablet 100(information terminal) includes: a microphone 1 capable of detecting a voice; Bluetooth(R) 4 for transmitting a signal capable of operating an illuminating device 200, a TV 300 and an air conditioner 400 to the illuminating device 200, the TV 300 and the air conditioner 400; and a control section 7. The control section 7 controls the Bluetooth(R) 4 to transmit a signal for bringing the power sources of the illuminating device 200, the TV 300 and the air conditioner 400 into a standby state to the illuminating device 200, the TV 300 and the air conditioner 400 when determining that there exists no person on the basis of at least the detection result of the microphone 1.

Description

  The present invention relates to an information terminal, and more particularly to an information terminal capable of operating a device.

  Conventionally, a voice recognition type illumination switch capable of operating a device is known (for example, see Patent Document 1).

  In Patent Document 1, a microphone unit (speech detection unit) capable of detecting speech, a speech recognition unit that recognizes speech by comparing a detection result of the microphone unit with a previously stored speech pattern, a control unit, There is disclosed a voice recognition type illumination switch comprising: The control unit of this voice recognition type illumination switch turns on the power of the lighting device (device) based on the recognition result recognized by the voice recognition unit when the user instructs “ON” or “OFF” by voice. It is configured to control in accordance with a user instruction.

JP 2002-289371 A

  However, in the voice recognition type illumination switch of Patent Document 1, since the user needs to give an instruction by voice, there is an inconvenience that if the user forgets to give an instruction, the lighting device is left lit. . For this reason, even if the control technology for the voice recognition illumination switch of Patent Document 1 is applied to an information terminal, if the user forgets to give an instruction, the illumination device (apparatus) is left powered on. There is a problem that it is difficult to save power.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to leave the device power on even if the user forgets to turn off the device. It is an object of the present invention to provide an information terminal capable of reducing power consumption and reducing power consumption.

  An information terminal according to an aspect of the present invention includes a voice detection unit capable of detecting voice, a signal transmission unit that transmits a signal that can operate the device to the device, and a control unit, and the control unit includes at least When it is determined that there is no person based on the detection result by the voice detection unit, the signal transmission unit is configured to control the device to transmit a signal for turning off the power supply of the device to a standby state or turning off. .

  In the information terminal according to one aspect of the present invention, as described above, when it is determined that there is no person based on at least the detection result by the voice detection unit, a signal for turning off or turning off the power of the device is sent to the device. On the other hand, by providing a control unit that controls the signal transmission unit to transmit, even if the user does not give an instruction, it is determined that there is no person based on the detection result by the voice detection unit, and the power supply of the device is automatically Therefore, even when the user forgets to turn off the device, it is possible to prevent the device from being left in the on state. As a result, power saving can be achieved even when the user forgets to turn off the device. In addition, since it is possible to determine that there is no person using a voice detection unit such as a microphone that is often mounted on an information terminal, there is no need to provide a dedicated human sensor to detect a person. .

  In the information terminal according to the above aspect, preferably, the control unit determines that there is no person when a state in which a change in sound is smaller than a predetermined reference continues for a predetermined time, and turns off the power of the device in a standby state or off. It is comprised so that the signal which transmits may be controlled to a signal transmission part with respect to an apparatus. With this configuration, it can be determined that there is little or no change in sound when the change in sound is smaller than a predetermined reference. Therefore, if this state continues for a predetermined time, it is determined that there is no person. Thus, the power of the device can be easily turned off or turned off.

  The information terminal according to the above aspect preferably further includes an imaging unit capable of imaging the periphery of the information terminal, and the control unit is configured to detect the person based on the imaging result of the imaging unit in addition to the detection result of the audio detection unit. When it is determined that there is no signal, the device is configured to perform control to cause the device to transmit a signal for turning off the power supply of the device to the standby state or to turn it off. If comprised in this way, since it can be judged that there is no person based not only on the detection result by an audio | voice detection part but on the imaging result by an imaging part, it can be judged more accurately that there is no person. .

  In this case, preferably, it further includes a storage unit capable of storing the detection result by the voice detection unit and the imaging result by the imaging unit, and the control unit detects the detection result by the voice detection unit and the imaging result by the imaging unit stored in the storage unit. Based on the above, it is determined that there is no person when the state in which the change in sound is smaller than the predetermined reference continues for the first predetermined time and the state in which the captured image does not substantially change continues for the second predetermined time. The device is configured to control the device to transmit a signal for turning off the power supply of the device to the signal transmission unit. According to this configuration, when the state in which the change in sound is smaller than the predetermined reference continues for the first predetermined time and the state in which the captured image does not substantially change continues for the second predetermined time, It is possible to accurately determine that there is no power and to turn off the power of the device.

  In the information terminal according to the above aspect, preferably, a plurality of devices are provided, the signal transmission unit is configured to transmit an operation signal to the plurality of devices, and the control unit determines that there is no person. In such a case, control is performed so that the signal transmitting unit transmits a signal for turning off the power supply of each of the plurality of devices to the plurality of devices. With this configuration, the plurality of devices can be automatically set to a standby state or turned off by the control unit without any instruction from the user. It can be suppressed from being left as it is.

  In the information terminal according to the above aspect, preferably, when the control unit determines that there is no person, the control unit controls the device to transmit a signal for turning off the power supply of the device to a standby state or turning off the device. And control to shift to the energy saving mode. If comprised in this way, when there is no person, it can suppress that the power supply of an apparatus is left in an ON state, can aim at the power saving of an apparatus, and can aim at the power saving of an information terminal. .

  In the configuration including the control unit that performs control to shift to the energy saving mode, preferably, the control unit further includes an illuminance sensor capable of detecting brightness, and the control unit waits for the power source of the device when it is determined that there is no person. Controls the device to send a signal to be turned off or off to the signal transmission unit, and even when the mode is shifted to the energy saving mode, the power supply to the control unit and the illuminance sensor is continued while the illuminance sensor When brightness equal to or higher than brightness is detected, control is performed to resume the supply of power to electronic components other than the illuminance sensor and the control unit. With this configuration, the information terminal can be automatically returned from the energy-saving mode when the brightness of the device exceeds a predetermined level when the device is turned on, reducing the burden on the user. can do.

  The configuration including the imaging unit preferably further includes a housing having the imaging unit disposed on the front surface and an acceleration sensor capable of recognizing the posture of the housing, and the control unit generates a detection result of the posture of the housing by the acceleration sensor. If it is determined that the chassis is installed so that the front surface of the chassis is opposed to the installation surface of the chassis, the person is based on the detection result by the voice detection unit without considering the imaging result by the imaging unit. If it is determined that there is no device, the device is configured to perform control to cause the device to transmit a signal for turning off the power supply of the device to the standby state or to turn it off. If configured in this way, when the front surface of the housing is placed face down so that the imaging unit faces the installation surface, the information terminal periphery cannot be appropriately imaged by the imaging unit. Can suppress that the precision which judges that there is no person using only the detection result by an audio | voice detection part falls.

  According to the present invention, as described above, even when the user forgets to turn off the power of the device, it is possible to save power by suppressing the power of the device from being left on.

It is the block diagram which showed the tablet by one Embodiment of this invention. It is the perspective view which showed the tablet by one Embodiment of this invention. It is the figure which showed the amplitude of the audio | voice detected by the microphone of the tablet by one Embodiment of this invention. It is a flowchart for demonstrating the apparatus control process of the tablet by one Embodiment of this invention. It is a flowchart for demonstrating the reset process of the tablet by one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  With reference to FIGS. 1-3, the structure of the tablet 100 by one Embodiment of this invention is demonstrated.

  As shown in FIG. 1, a tablet 100 according to an embodiment of the present invention includes a microphone 1, a camera 2, a storage unit 3, a Bluetooth (registered trademark) 4, an acceleration sensor 5, an illuminance sensor 6, and a control. Part 7. As shown in FIG. 2, the display unit 12 is disposed on the front surface 11 a side (X1 direction side) of the casing 11 of the tablet 100. The microphone 1, the camera 2, and the illuminance sensor 6 are disposed on the front surface 11 a of the housing 11. The Bluetooth (registered trademark) 4 is disposed in the vicinity of the upper end (Z1 direction side) end portion of the front surface 11a of the casing 11. The tablet 100 is an example of the “information terminal” in the present invention.

  The tablet 100 is configured to be able to control the power supply of the lighting device 200 to the off state. The tablet 100 is configured to be able to control the power sources of the TV (television device) 300 and the air conditioner (air conditioner) 400 in a standby state or an off state. The tablet 100 is configured to be able to shift to the energy saving mode. The lighting device 200, the TV 300, and the air conditioner 400 are examples of the “device” in the present invention.

  The microphone 1 is configured to be able to detect sound around the tablet 100. That is, the microphone 1 can detect a voice or a sound generated by a person around the tablet 100. The microphone 1 is an example of the “voice detection unit” in the present invention.

  The camera 2 is configured to be able to image the periphery of the tablet 100. That is, the camera 2 can detect the movement of a person around the tablet 100. The camera 2 is an example of the “imaging unit” in the present invention.

  The storage unit 3 is a rewritable nonvolatile memory. Further, the storage unit 3 is configured to be able to store audio data detected by the microphone 1 and image data captured by the camera 2. The audio data is an example of the “detection result” in the present invention. The image data is an example of the “imaging result” and “captured image” of the present invention.

  The Bluetooth (registered trademark) 4 is configured to transmit a signal capable of operating the lighting device 200, the TV 300, and the air conditioner 400 to each of the lighting device 200, the TV 300, and the air conditioner 400. Specifically, the Bluetooth (registered trademark) 4 is configured to be able to transmit a signal for turning off the power of the lighting apparatus 200. The Bluetooth (registered trademark) 4 is configured to be able to transmit a signal for setting the power source of the TV 300 and the air conditioner 400 to a standby state or a signal for turning it off. Further, Bluetooth (registered trademark) 4 is an example of the “signal transmission unit” in the present invention.

  The acceleration sensor 5 is configured to recognize the posture of the housing 11. For example, the acceleration sensor 5 is configured to be able to recognize the posture of the casing 11 installed so that the front surface 11a of the casing 11 faces the installation surface. The illuminance sensor 6 is configured to detect the brightness around the tablet 100. That is, the illuminance sensor 6 can detect that the lighting device 200 around the tablet 100 has been turned on.

  Here, in this embodiment, the control part 7 is comprised so that operation | movement of the tablet 100 whole may be controlled. Further, the control unit 7 is configured to determine that there is no person based on the audio data from the microphone 1 and the image data from the camera 2. When it is determined that there is no person, the control unit 7 is configured to control the lighting apparatus 200 to transmit a signal for turning off the power of the lighting apparatus 200 to the Bluetooth (registered trademark) 4. . In addition, when it is determined that there is no person, the control unit 7 performs control to cause the TV 300 and the air conditioner 400 to transmit a signal to the Bluetooth (registered trademark) 4 to the TV 300 and the air conditioner 400. It is configured.

  The control unit 7 is configured to determine whether or not a state where the amplitude of the sound in the sound data is smaller than a predetermined reference value (see FIG. 3) has continued for a predetermined time (for example, 60 minutes). The control unit 7 is configured to determine whether or not the state where the amplitude of the audio is smaller than a predetermined reference value has continued for a predetermined time at a predetermined timing (for example, every 10 minutes).

  Further, the control unit 7 is configured to determine whether or not the state in which the image data does not substantially change continues for a predetermined time (for example, 60 minutes). The control unit 7 is configured to determine whether or not the state in which the image data does not substantially change continues for a predetermined time at a predetermined timing (for example, every 10 minutes).

  The control unit 7 determines that there is no person when the state in which the amplitude of the audio in the stored audio data is smaller than the predetermined reference value continues for a predetermined time and the stored image data does not change substantially for the predetermined time. . The control unit 7 is configured to determine that there is a person regardless of whether or not there is a change in the image data when the state where the amplitude of the audio is smaller than the predetermined reference value does not continue for a predetermined time. Further, when the state in which the image data does not substantially change does not continue for a predetermined time, the control unit 7 indicates that there is a person regardless of whether or not the state in which the audio amplitude is smaller than the predetermined reference value continues for the predetermined time. It is configured to judge. When the control unit 7 determines that there is no person, the control unit 7 is configured to control the lighting device 200 to transmit a signal for turning off the power of the lighting device 200 to the Bluetooth (registered trademark) 4. Has been. In addition, the control unit 7 is configured to perform control for causing the TV 300 and the air conditioner 400 to transmit signals to the Bluetooth (registered trademark) 4 to put the power supply of the TV 300 and the air conditioner 400 into a standby state.

  Further, the control unit 7 determines whether or not each of the state where the sound amplitude in the sound data is smaller than a predetermined reference value and the state where the image data does not substantially change continues for a predetermined time (for example, every 60 minutes). By performing the determination timing at a time interval shorter than the predetermined time (for example, at an interval of 10 minutes), the determination of the presence or absence of a person can be performed more frequently than when determining at the predetermined time interval. Therefore, it is possible to respond more promptly when there are no more people. In consideration of reducing the control burden on the control unit 7, it is preferable to make the determination at a predetermined time interval such as an interval of 10 minutes instead of continuously performing the determination in real time. In addition, if the predetermined time is too short, it is determined that there is no person even if the user leaves the periphery of the tablet 100 for a short time, such as going to the toilet, so the predetermined time is preferably about 60 minutes.

  In addition, the control unit 7 causes the lighting device 200 to transmit a signal for turning off the power supply of the lighting device 200, and causes the TV 300 and the air conditioner 400 to transmit signals for turning the power of the TV 300 and the air conditioner 400 to the standby state, respectively. After that, the tablet 100 is configured to perform control to shift to the energy saving mode. Moreover, the control part 7 is comprised so that control of continuing supply of electric power to the control part 7 and the illumination intensity sensor 6 may be performed even when it transfers to energy saving mode. That is, the control unit 7 is configured to perform control to stop power supply to the microphone 1, the camera 2, the storage unit 3, the Bluetooth (registered trademark) 4, and the acceleration sensor 5 when the mode is shifted to the energy saving mode. ing.

  In addition, in the energy saving mode, when the brightness sensor 6 detects a brightness that is equal to or higher than a predetermined brightness, the control unit 7 keeps supplying power to the illumination sensor 6 and the control unit 7, except for these. The electronic component is controlled to resume power supply.

  Further, when the control unit 7 determines that the housing 11 is installed such that the front surface 11 a of the housing 11 faces the installation surface of the housing 11 based on the detection result of the posture of the housing 11 by the acceleration sensor 5. The image data from the camera 2 is not taken into consideration, and it is determined that there is no person based only on the sound data from the microphone 1.

  Next, with reference to FIG. 4, a processing flow of device control executed by the control unit 7 of the tablet 100 according to the present embodiment will be described. The device control process is executed when the tablet 100 is powered on.

  First, in step S1, it is determined whether audio data and image data for a predetermined time (for example, 60 minutes) have been acquired. This determination is repeated until audio data and image data for a predetermined time are acquired. When audio data and image data for a predetermined time are acquired, the process proceeds to step S2.

  Next, in step S2, whether or not the state in which the amplitude of the sound in the sound data is smaller than a predetermined reference value (see FIG. 3) continues for a predetermined time and the state in which the image data does not substantially change continues for a predetermined time. Is judged. If the state in which the amplitude of the sound in the sound data is smaller than the predetermined reference value does not continue for a predetermined time, or if the state in which the image data does not substantially change does not continue for a predetermined time, it is determined that there is a person and the device control The process ends. In other words, if a state where the amplitude of the audio exceeds the predetermined reference value temporarily occurs within a predetermined time, it is determined that there is a person, and if the image data changes even once within the predetermined time, It is judged that there is. On the other hand, if it is determined that the state in which the amplitude of the sound in the sound data is smaller than the predetermined reference value continues for a predetermined time and the state in which the image data does not substantially change continues for the predetermined time, it is determined that there is no person. Then, the process proceeds to step S3.

  In step S <b> 3, a signal for setting the power supply to a standby state or an off state is transmitted to lighting device 200, TV 300, and air conditioner 400. Specifically, the control unit 7 performs control to cause the lighting device 200 to transmit a signal for turning off the power to the Bluetooth (registered trademark) 4. In addition, the control unit 7 controls the Bluetooth (registered trademark) 4 to transmit a signal for setting the power supply to the standby state to each of the TV 300 and the air conditioner 400.

  Next, in step S4, the power saving mode is entered while continuing to supply power to the illuminance sensor 6 and the control unit 7. Thereafter, the device control process is terminated.

  If it is determined in step S2 that the state in which the amplitude of the sound in the sound data is smaller than a predetermined reference value continues for a predetermined time and the state in which the image data does not substantially change continues for a predetermined time, After completing the control process, the process proceeds to a return process (see FIG. 5) described later. If it is determined in step S2 that there is a person, the device control process is repeatedly executed at a predetermined timing (for example, every 10 minutes) after the device control process is completed.

  Next, a return processing flow executed by the control unit 7 of the tablet 100 according to the present embodiment will be described with reference to FIG. This process is continuously executed when it is determined that there is no person and the mode is shifted to the energy saving mode.

  In step S11, it is determined whether the illuminance sensor 6 has detected a brightness of a predetermined brightness or higher. This determination is repeated until a brightness equal to or higher than the predetermined brightness is detected. When a brightness equal to or higher than the predetermined brightness is detected, the process proceeds to step S12.

  In step S12, the supply of power to each unit (the microphone 1, the camera 2, the storage unit 3, the Bluetooth (registered trademark) 4 and the acceleration sensor 5) is resumed. Thereafter, the return process is terminated.

  In the present embodiment, as described above, when it is determined that there is no person based on at least the detection result by the microphone 1, the signal for turning off the lighting device 200 and the power of the TV 300 and the air conditioner 400 are waited. A control unit 7 is provided for performing control for transmitting the signal to be set to the Bluetooth (registered trademark) 4. Thus, even if the user does not give an instruction, it is determined that there is no person based on the detection result by the microphone 1 and the lighting device 200 is automatically turned off, and the TV 300 and the air conditioner 400 are turned off. Since the standby state can be set, even when the user forgets to turn off the lighting device 200, the TV 300, and the air conditioner 400, the lighting device 200, the TV 300, and the air conditioner 400 are prevented from being left on. be able to. As a result, even when the user forgets to turn off the lighting device 200, the TV 300, and the air conditioner 400, power saving can be achieved. Further, since it is possible to determine that there is no person using the microphone 1 that is often mounted on the tablet 100, it is not necessary to separately provide a dedicated human sensor for detecting a person.

  In the present embodiment, as described above, when the state where the audio amplitude is smaller than the predetermined reference value continues for a predetermined time, it is determined that there is no person, and the TV 300 is turned off. And the control part 7 is comprised so that control which transmits the signal which sets the power supply of the air conditioner 400 to a standby state to Bluetooth (trademark) 4 may be performed. Thereby, when the amplitude of the sound is smaller than the predetermined reference value, it can be determined that the change in the sound is small. Therefore, when this state continues for a predetermined time, it is easily determined that there is no person. The power source of the TV 300 and the air conditioner 400 can be put into a standby state while the power source of the 200 is turned off.

  In the present embodiment, as described above, when it is determined that there is no person based on the imaging result of the camera 2 in addition to the detection result of the microphone 1, the lighting device 200 is turned off and the TV 300 And the control part 7 is comprised so that control which transmits the signal which makes the power supply of the air-conditioner 400 a standby state to Bluetooth (trademark) 4 may be performed. Thereby, since it can be determined that there is no person based not only on the detection result by the microphone 1 but also on the imaging result by the camera 2, it can be determined that there is no person more accurately.

  In the present embodiment, as described above, based on the detection result by the microphone 1 and the imaging result by the camera 2 stored in the storage unit 3, a state in which the amplitude of the audio is smaller than a predetermined reference value continues for a predetermined time, In addition, when a state in which the captured image does not substantially change continues for a predetermined time, it is determined that there is no person, and a signal for turning off the power of the lighting device 200 and a signal for turning off the power of the TV 300 and the air conditioner 400 The control unit 7 is configured to perform control to transmit Bluetooth to the Bluetooth (registered trademark) 4. As a result, when a state where the amplitude of the sound is smaller than the predetermined reference value continues for a predetermined time and a state where the captured image does not substantially change continues for the predetermined time, it is accurately determined that there is no person. The lighting device 200 can be turned off, and the TV 300 and the air conditioner 400 can be turned on.

  In the present embodiment, as described above, when it is determined that there is no person, a signal for turning off the power of the lighting device 200 and turning on the power of the TV 300 and the air conditioner 400 is sent to the Bluetooth (registered trademark). The control unit 7 is configured to perform control to be transmitted to 4, and to perform control to shift to the energy saving mode. Accordingly, it is possible to reduce the power consumption of the device by suppressing the lighting device 200, the TV 300, and the air conditioner 400 from being left on in the absence of a person, and to reduce the power consumption of the tablet 100. Can do.

  In the present embodiment, as described above, when it is determined that there is no person, the illuminance sensor 6 performs predetermined power supply while continuing to supply power to the control unit 7 and the illuminance sensor 6 even when shifting to the energy saving mode. When brightness equal to or higher than brightness is detected, the control unit 7 is configured to perform control for restarting power supply to electronic components other than the illuminance sensor 6 and the control unit 7. Accordingly, when the lighting device 200 is turned on, the tablet 100 can be automatically returned from the energy-saving mode when the brightness exceeds a predetermined level, thereby reducing the operation burden on the user. Can do.

  In the present embodiment, as described above, based on the detection result of the posture of the housing 11 by the acceleration sensor 5, it is determined that the housing 11 is installed such that the front surface 11a of the housing 11 faces the installation surface of the housing 11. In this case, when it is determined that there is no person based on the detection result of the microphone 1 without considering the imaging result of the camera 2, the signal for turning off the power of the lighting device 200 and the power of the TV 300 and the air conditioner 400 are used. The control unit 7 is configured to control the Bluetooth (registered trademark) 4 to transmit a signal for setting the standby state to the standby state. Thereby, when the housing 11 is placed face down so that the camera 2 faces the installation surface, the periphery of the tablet 100 cannot be appropriately imaged by the camera 2. It can suppress that the precision which judges that there is no person using only a detection result falls.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above-described embodiment, an example in which the present invention is applied to a tablet as an example of the information terminal of the present invention has been described, but the present invention is not limited to this. In the present invention, for example, the present invention may be applied to an information terminal other than a tablet such as a photo frame.

  In the above embodiment, the state in which the amplitude of the sound in the sound data (detection result) is smaller than the predetermined reference value continues for a predetermined time, and the state in which the captured image data (image capturing result) does not substantially change is the sound data. Although the example which judges that there is no person when it continued for the same predetermined time as this detection result was shown, this invention is not limited to this. In the present invention, the state in which the audio amplitude in the audio data (detection result) is smaller than the predetermined reference value continues for the first predetermined time, and the captured image data (imaging result) does not substantially change. If the second predetermined time different from the predetermined time of 1 is continued, it may be determined that there is no person.

  In the above embodiment, in the energy saving mode, when power is continuously supplied to the control unit and the illuminance sensor, and the illuminance sensor detects a brightness of a predetermined brightness or higher, the electronic devices other than the illuminance sensor and the control unit are used. Although the example which restarts supply of electric power to components was shown, this invention is not limited to this. In the present invention, in the energy saving mode, when power is continuously supplied to at least one of the voice detection unit and the imaging unit and the user returns, a person is detected based on the detection result of the voice detection unit and the imaging result of the imaging unit. The power supply of the device may be restored from the energy saving mode.

  In the above embodiment, an example is shown in which it is determined that there is no person based on the result of imaging by the camera (imaging unit) in addition to the result of detection by the microphone (sound detection unit). However, the present invention is not limited to this. I can't. In the present invention, it may be determined that there is no person based only on the detection result by the voice detection unit.

  Moreover, although the example which controls the power supply state of the three illuminating devices 200, TV300, and the air conditioner 400 (plural apparatus) was shown in the said embodiment, this invention is not limited to this. In the present invention, the power state of one, two, or four or more devices may be controlled.

  Moreover, although the example which provided Bluetooth (trademark) as a signal transmission part of this invention was shown in the said embodiment, this invention is not limited to this. In the present invention, for example, a signal communication unit other than Bluetooth (registered trademark) such as an infrared sensor may be used.

  In the above embodiment, for convenience of explanation, the processing of the control unit of the present invention has been described using a flow-driven flowchart that performs processing in order along the processing flow, but the present invention is not limited to this. In the present invention, the processing operation of the control unit may be performed by event-driven (event-driven) processing that executes processing for each event. In this case, it may be performed by a complete event drive type or a combination of event drive and flow drive.

1 Microphone (voice detector)
2 Camera (imaging part)
3 storage unit 4 Bluetooth (signal transmission unit)
5 Acceleration sensor 6 Illuminance sensor 7 Control unit 11 Housing 11a Front 100 Tablet (information terminal)
200 Lighting equipment (equipment)
300 TV (equipment)
400 Air conditioner (equipment)

Claims (8)

A voice detection unit capable of detecting voice;
A signal transmission unit that transmits a signal capable of operating the device to the device;
A control unit,
When the control unit determines that there is no person based at least on the detection result of the voice detection unit, the control unit transmits a signal for turning off or turning off the power of the device to the signal transmission unit. An information terminal configured to perform control.   The control unit determines that there is no person when a state in which a change in sound is smaller than a predetermined reference continues for a predetermined time, and sends a signal to the device to turn the power of the device on or off. The information terminal according to claim 1, wherein the information terminal is configured to perform control to be transmitted to a transmission unit. An imaging unit capable of imaging the periphery of the information terminal;
When the control unit determines that there is no person based on the imaging result by the imaging unit in addition to the detection result by the voice detection unit, the control unit outputs a signal for turning the power of the device to a standby state or turning off the device. The information terminal according to claim 1, wherein the information terminal is configured to perform control to be transmitted to the signal transmission unit. A storage unit capable of storing the detection result by the voice detection unit and the imaging result by the imaging unit;
Based on the detection result by the voice detection unit and the imaging result by the imaging unit stored in the storage unit, the control unit continues a state in which a change in audio is smaller than a predetermined reference for a first predetermined time, In addition, when the state where the captured image does not substantially change continues for a second predetermined time, it is determined that there is no person, and a signal for turning off the power supply of the device or turning off the device is transmitted to the signal transmission unit. The information terminal according to claim 3, wherein the information terminal is configured to perform control to be transmitted to the terminal. A plurality of the devices are provided,
The signal transmission unit is configured to transmit an operation signal to the plurality of devices,
When the control unit determines that there is no person, the control unit performs control to cause the plurality of devices to transmit a signal for turning off the power of each of the plurality of devices to the signal transmission unit. The information terminal according to claim 1, configured as described above.   When it is determined that there is no person, the control unit performs control to cause the signal transmission unit to transmit a signal for turning off the power of the device to the standby state or off, and shifts to the energy saving mode. The information terminal according to claim 1, wherein the information terminal is configured to perform control. An illuminance sensor that can detect the brightness is further provided.
When it is determined that there is no person, the control unit performs control to cause the signal transmission unit to transmit a signal for turning off the power of the device to the standby state or to turn off the device, and enters the energy saving mode. Even when the transition is made, when the brightness of the predetermined brightness or higher is detected by the illuminance sensor while continuing to supply power to the control unit and the illuminance sensor, The information terminal according to claim 6, wherein the information terminal is configured to perform control for restarting power supply to the electronic component. A housing in which the imaging unit is arranged on the front surface;
An acceleration sensor capable of recognizing the posture of the housing;
When the control unit determines that the housing is installed such that the front surface of the housing faces the installation surface of the housing based on a detection result of the posture of the housing by the acceleration sensor, the imaging unit The signal is transmitted to the device to turn off or turn off the power of the device when it is determined that there is no person based on the detection result of the sound detection unit without considering the imaging result of the device. The information terminal according to claim 3, wherein the information terminal is configured to perform control to be transmitted to a unit.

Images