JP2011205365A - System, device and program for generation of presence information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system, device and program for generation of presence information, capable of generating the presence information in a daily life of a person 50 to be checked without burdening the person 50 to be checked.SOLUTION: The presence information generation system includes: a detector which is arranged indoors to output a detection signal when the person to be checked performs a predetermined action; and a generator which generates the presence information showing a state of the person to be checked based on the detection signal. The generator has: a receiver for receiving the detection signal to be output from the detector; a converter for converting the detection signal within a period into information on a frequency spectrum; an extractor for extracting information on a predetermined frequency band from the information on the frequency spectrum; and a generator for generating presence information on the person to be checked based on information of the predetermined frequency band extracted by the extractor.

Description

  The present invention provides presence information indicating a state of a person to be confirmed based on the detection signal output from a detection device that is disposed indoors and outputs a detection signal when the person to be confirmed performs a predetermined action. The present invention relates to a presence information generation system, a presence information generation apparatus, and a presence information generation program.

  Conventionally, in order to obtain presence information indicating the state of the person to be confirmed in the room, the action of the person to be confirmed is detected using a detection device such as an infrared sensor or a contact type sensor installed in the room, Data processing is performed to generate presence information of the person to be confirmed. Furthermore, presence information of a person to be confirmed is also acquired by connecting a microphone or video camera installed indoors to the Internet network and enabling monitoring from the outside.

  Patent Document 1 discloses a technique for inferring the status of a person to be confirmed from voice information acquired from a mobile phone usage pattern or a sensor mounted on a mobile phone and issuing it as presence information. Yes.

JP 2005-275890 A

  However, the conventional method for generating the presence information of the person to be confirmed is complicated to generate, and the method of monitoring the microphone and the video camera has a problem in privacy protection.

  The present invention has been made in view of the above-described problems, and a presence information generation system, presence information generation apparatus, and presence information that can generate presence information according to the state of a person to be confirmed by relatively simple processing. An object is to provide a generation program.

  In order to achieve the above object, an invention according to claim 1 is provided indoors, and a detection device that outputs a detection signal when a person to be confirmed performs a predetermined action, and based on the detection signal, In a presence information generation system comprising a generation device that generates presence information indicating the status of a person to be confirmed, the generation device includes a receiving unit that receives the detection signal output from the detection device, and a predetermined time period. Conversion means for converting the detection signal into frequency spectrum information, extraction means for extracting information on a predetermined frequency band from the frequency spectrum information, and information on the predetermined frequency band extracted by the extraction means And a generation means for generating presence information of the person to be confirmed.

  The invention according to claim 2 is the presence information generation system according to claim 1, wherein the extraction unit uses the information of the predetermined frequency band as information of two or more frequency bands, and the generation unit includes: The presence information of the person to be confirmed is generated based on each of the information of the two or more frequency bands.

  The invention according to claim 3 is the presence information generation system according to claim 1 or 2, wherein the detection device includes a plurality of the detection devices, and the generation unit includes presence information of the person to be confirmed for each detection device. Is generated.

  According to a fourth aspect of the present invention, in the presence information generation system according to any one of the first to third aspects, a notification device that notifies the presence information of the person to be confirmed that is output from the generation device. It is characterized by having.

  The invention according to claim 5 is the presence information generation system according to claim 4, wherein the notification device sets the predetermined frequency band to be extracted by the extraction unit of the generation device; Setting result transmitting means for transmitting the setting result by the setting means to the generating device, and the extracting means of the generating device provides information on the frequency band based on the setting result transmitted from the notification device. It is extracted from the information of the frequency spectrum.

  According to a sixth aspect of the present invention, in the presence information generation system according to the fourth aspect of the invention, the notification device is configured to check the presence information of the person to be confirmed, information on the detection device, and information on the person to be confirmed. An input means for inputting at least one of the behavior pattern and the age / gender of the person to be confirmed, and an input result transmitting means for transmitting an input result by the input means to the generating device. The generation device includes a determination unit that determines the predetermined frequency band for performing the extraction process by the extraction unit based on the input result transmitted from the notification device.

  The invention according to claim 7 is the presence information generation system according to any one of claims 4 to 6, wherein the notification device inputs an outing schedule information for inputting the outing schedule information of the person to be confirmed. And an outing schedule transmitting means for transmitting the outing schedule information input to the outing schedule input means to the generating device, wherein the generating device transmits the outing schedule transmitted by the outing schedule transmitting means. The generation of presence information of the person to be confirmed is stopped based on schedule information.

  According to an eighth aspect of the present invention, there is provided a receiving means for receiving the detection signal output from a detection device that is disposed indoors and outputs a detection signal when the person to be confirmed performs a predetermined action. Conversion means for converting the detection signal within a period into frequency spectrum information, extraction means for extracting information on a predetermined frequency band from the information on the frequency spectrum, and information on the predetermined frequency band extracted by the extraction means The presence information generation apparatus is characterized by comprising generation means for generating presence information of the person to be confirmed.

  According to a ninth aspect of the present invention, there is provided a receiving means for receiving the detection signal output from a detection device that is disposed indoors and outputs a detection signal when the person to be confirmed performs a predetermined action; Conversion means for converting the detection signal within a period into frequency spectrum information, extraction means for extracting information on a predetermined frequency band from the information on the frequency spectrum, and information on the predetermined frequency band extracted by the extraction means The presence information generation program is characterized in that a computer is caused to function as generation means for generating presence information of the person to be confirmed.

  According to the present invention, the detection signal of the detection device installed in the subject person's home is converted into a frequency spectrum to extract a predetermined frequency band, and the subject person to be confirmed is extracted based on the extracted predetermined frequency band. Generate presence information. Therefore, presence information corresponding to the state of the person to be confirmed can be generated by a relatively simple process.

1 is a diagram showing an overall configuration of a presence information generation system according to an embodiment of the present invention. It is a figure explaining conversion to the frequency spectrum of the detection signal received from the detection apparatus during the predetermined period. It is a figure explaining the case where the information of the preset frequency band is extracted from the information of a frequency spectrum. It is a figure which shows an example of the presence information which the presence information generation apparatus produced. It is a block diagram which shows the specific structure of a presence information generation apparatus. It is a block diagram which shows the specific structure of an alerting | reporting apparatus. It is a block diagram which shows the specific structure of a detection apparatus. It is a figure explaining the flow of the process performed with a presence information generation apparatus. It is a figure which shows the setting data for every some detection apparatus. It is a figure which shows the flow of the main process performed with a presence information generation apparatus. It is a figure which shows the flow of the presence information production | generation / notification process performed with a presence information production | generation apparatus. It is a figure which shows the flow of the presence information display process performed with a alerting | reporting apparatus.

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

[1. Outline of presence information generation system]
First, an outline of the presence information generation system will be described with reference to FIG. FIG. 1 is a diagram showing the overall configuration of a presence information generation system.

  The presence information generation system is generated by a plurality of detection devices 20, 21 arranged in the house 40, presence information generation device 10 that generates presence information indicating the status of the person to be confirmed 50, and presence information generation device 10. For example, a notification device 30 that notifies the presence information.

  The detection device 20 is an infrared sensor installed in the toilet 41 in the house 40, and outputs a predetermined detection signal to the presence information generation device 10 when it is detected that the person to be confirmed 50 has entered the toilet 41. The detection device 21 is a door opening / closing detection sensor such as a front door, and outputs a predetermined detection signal to the presence information generation device 10 when the opening / closing of the door by the person to be confirmed 50 is detected.

  The detection devices are not limited to the detection devices 20 and 21 described above. For example, bath hot water supply / reheating detection, lighting device on / off detection, indoor door open / close detection, electric pot use detection, television Those that can detect on-off detection, toilet drainage detection, toilet seating detection, etc. are used. In addition, the detection device is not limited to these, and any device that can detect the behavior of the person to be confirmed 50 living in the house 40 may be used.

  The presence information generation device 10 receives detection signals from the detection devices 20 and 21, and converts the detection signals from the detection devices within a predetermined period into frequency spectrum information. Then, the presence information generation apparatus 10 extracts information on a predetermined frequency band from the information on the frequency spectrum, and generates presence information on the person to be confirmed 50 based on the information on the predetermined frequency band thus extracted. .

  In this way, the detection signals from the detection devices 20 and 21 are converted into frequency spectrum information, and presence indicating the state of the person to be confirmed 50 based on the level level of a predetermined frequency band in the frequency spectrum. Generate information. Therefore, the presence information generation process can be simplified. The configuration of the presence information generation device 10 will be described in detail later.

  The notification device 30 includes a display unit 30 a that displays the presence information generated by the presence information generation device 10. Therefore, for example, a relative of the person to be confirmed 50 living in a remote place can know the behavior of the person to be confirmed 50 by confirming the presence information displayed on the display unit 30a. As the notification device 30, for example, a portable mobile terminal such as a cellular phone is used.

  The presence information generation device 10 and the notification device 30 are connected via the Internet network 70. Communication between the presence information generation device 10 and the notification device 30 is performed using, for example, a communication standard of Session Initiation Protocol (hereinafter referred to as SIP). This SIP is a communication standard for controlling two-way real-time communication such as telephone, videophone and instant messaging mainly on the Internet network 70. This SIP communication control is performed by a SIP server 60 connected to the Internet network 70.

  In the presence information generation system having the configuration described above, the detection signal output from the detection device is converted into frequency spectrum information and processed, so that presence corresponding to the state of the person to be confirmed 50 can be achieved by relatively simple processing. Information can be generated. Furthermore, since the generated presence information is transmitted to the notification device 30 by SIP communication control via the Internet network 70, the owner of the notification device 30 checks the presence information of the person to be confirmed 50 in real time. Can do. In the presence information generation system according to the present embodiment, the presence information generation device 10 is disposed indoors in the house 40, but the presence information generation device 10 may be provided outdoors. For example, the detection devices 20, 21... Nn can be connected to the Internet network 70 directly or via a router or the like, and the detection devices 20, 21... Nn and the presence information generation device 10 can be connected via the Internet network 70. .

[2. Overview of presence information generation]
Hereinafter, an outline of generation of presence information of the person to be confirmed 50 in the presence information generation system shown in FIG. 1 will be described with reference to FIGS.

  FIG. 2A is a diagram illustrating a history example of the reception timing of the detection signal output from the detection device 20 by the presence information generation device 10. FIG. 2B is a diagram showing frequency spectrum information when the detection signal within one week shown in FIG. 2A is subjected to fast Fourier transform (hereinafter also referred to as FFT). FIGS. 3A and 3B are diagrams showing a case where information on a preset frequency band is extracted from the information on the frequency spectrum shown in FIG. FIG. 4 is a diagram illustrating an example of presence information created by the presence information generation device 10 and displayed on the notification device 30.

  In the presence information generation device 10, a detection signal transmitted to the presence information generation device 10 from the detection device 20 installed in the toilet 41 of the house 40 is received as shown in FIG. Suppose that In the example shown in FIG. 2A, the person to be confirmed 50 goes to the toilet every day and uses the toilet 41 every day on average about 5 times a day.

  The detection signal for one week shown in FIG. 2 (a) is fast Fourier transformed by the converting means of the presence information generating apparatus 10 and converted into frequency spectrum information as shown in FIG. 2 (b). In this fast Fourier transform, one week is set to 1 (Hz). Moreover, the horizontal axis of FIG.2 (b) is the frequency f (Hz), and a vertical axis | shaft is the level L (dB). In the frequency spectrum information shown in FIG. 2B, the levels are high in several frequency bands.

  Here, for example, the frequency spectrum information conversion data shown in FIG. 2 (b) is converted into frequency bands of 5 to 9 (Hz) as shown in FIG. To extract. This frequency band is a frequency band that is a measure of the number of days that the toilet 41 is used in a week. When there is a frequency that exceeds the determination threshold among the frequencies in this frequency band, it can be generally understood that the toilet 41 is being used normally. In the example shown in FIG. 3A, the level near 7 (Hz) is high, exceeds the determination threshold L1, and it can be seen that the toilet 41 is used almost every day.

  Further, for example, the conversion data of the frequency spectrum information shown in FIG. 2 (b) is converted into a frequency band of 49 to 61 (Hz) as shown in FIG. Extract. This frequency band is a frequency band that serves as a guide indicating that the frequency of using the toilet 41 is an interval of about 3 hours. When there is a frequency that exceeds the determination threshold among the frequencies in this frequency band, it can be generally understood that the frequency of using the toilet 41 is an interval of about 3 hours. In the example shown in FIG. 3B, the level near 56 (Hz) is high, exceeds the determination threshold L2, and it can be seen that the frequency of using the toilet 41 is an interval of about 3 hours.

  The presence information generation device 10 compares the extracted frequency band with a predetermined determination threshold value, and generates presence information according to the result. This determination threshold is a numerical value for determining whether or not the action of the person to be confirmed 50 is normal. As the frequency band to be extracted, for example, since the toilet 41 is usually used every day, the frequency bands before and after that including 7 Hz are set as shown in FIG. When the frequency of using the toilet 41 is to be confirmed, for example, by setting a frequency band before and after that including 56 Hz as shown in FIG. 3B, the frequency of using the toilet 41 is about 3 hours. It is possible to grasp whether or not the interval is.

  The presence information generation apparatus 10 compares the extracted frequency band level with the determination threshold value, and if it is equal to or higher than the determination threshold value, as shown in FIG. Generate presence information for messaging. If the level of the extracted frequency band is lower than the judgment threshold but not so urgent, as shown in Fig. 4 (b), "Outside the normal range. Continue monitoring." The instant messaging presence information is generated. Also, if the extracted frequency band level is lower than the judgment threshold and there is a difference enough to judge the abnormality, as shown in Fig. 4 (c), "There is an abnormality. Immediate action is required." Generate presence information for instant messaging

  Presence information generated in this way is transmitted from the presence information generation device 10 to the notification device 30 and displayed on the display unit 30a of the notification device 30. And the owner of the alerting | reporting apparatus 30 can perform a required response | compatibility according to presence information of the person to be confirmed 50.

  As described above, in the presence information generation system, the detection signal of the predetermined period output from the detection device 20 is converted into the information of the frequency spectrum, thereby detecting the action cycle of the person 50 to be confirmed. The presence information of the person 50 is generated. Conversion to frequency spectrum information can be performed using fast Fourier transform, and the state of the person to be confirmed 50 can be identified from a complicated signal pattern by a simple process and transmitted to the notification device 30 quickly. It is possible.

  In the embodiment described above, presence information of the person to be confirmed 50 is generated based on the detection signal of the detection device 20 installed in the toilet 41 of the house 40. However, this is an example, and for example, a detection device may be installed in a kitchen or a bath, and presence information may be generated based on the detection signal. It is also possible to install a plurality of detection devices in places that are always used in daily life, such as kitchens, baths, and toilets, and generate presence information based on detection signals from the plurality of detection devices. In this way, by generating presence information based on detection signals from a plurality of detection devices, the action of the person to be confirmed 50 can be specified in more detail.

[3. Specific configuration of presence information generation system]
Specific configurations of the presence information generation device 10, the notification device 30, and the detection device 20 in the presence information generation system will be described with reference to FIGS. FIG. 5 is a block diagram showing a specific configuration of the presence information generating apparatus 10. FIG. 6 is a block diagram showing a specific configuration of the notification device 30. FIG. 7 is a block diagram showing a specific configuration of the detection device 20.

  As shown in FIG. 5, the presence information generation apparatus 10 includes a control unit 14, a storage unit 16, a sensor input unit 17, and a communication unit 18. As the presence information generation apparatus 10, a computer including a control unit 14, a storage unit 16, a sensor input unit 17, a communication unit 18, and the like is used.

  The control unit 14 includes a CPU 11, a ROM 12, and a RAM 13. The ROM 12 stores an operating system (OS), and the storage unit 16 stores a presence information generation program for operating the presence information generation apparatus 10 as an operation. The CPU 11 functions as the control unit 14 by reading and executing various programs from the ROM 12 and the storage unit 16. The RAM 13 is a memory that temporarily stores various data, and is used when the presence information generating apparatus 10 is controlled by the CPU 11.

  The storage unit 16 uses a non-volatile memory, a hard disk, or the like, and stores information of detection signals output from a plurality of detection devices installed in the house 40, presence information of the generated person to be confirmed 50, and the like. .

  The sensor input unit 17 receives input of detection signals of a plurality of detection devices installed in the house 40. The reception information of the detection signal received here is stored in the storage unit 16 for each of the plurality of detection devices, and is used to generate presence information of the person to be confirmed 50.

  The communication unit 18 controls communication with the Internet network 70 that is an external communication network. Specifically, the communication with the notification device 30 is controlled, for example, the presence information generated by the presence information generation device 10 is transmitted to the notification device 30 via the Internet network 70.

  As shown in FIG. 6, the notification device 30 includes an input unit 31, a control unit 32, a decoder unit 33, a video processing unit 34, a display unit 30a, an audio processing unit 35, a storage unit 37, and a communication unit 38. Yes. Note that a mobile phone or the like is used as the notification device 30.

  The input unit 31 transmits a predetermined detection signal based on input of various button operations provided in the notification device 30 to the control unit 32.

  Although not shown, the control unit 32 includes a CPU 11, a ROM 12, a RAM 13, and the like, and controls the entire notification device 30. The decoder unit 33 restores text data and audio data such as presence information encoded by a certain rule and received by the communication unit 38, and supplies them to the video processing unit 34 and the audio processing unit 35. The video processing unit 34 performs control to display text data such as presence information supplied from the decoder unit 33 on the display unit 30a. The audio processing unit 35 performs control to output the audio data supplied from the decoder unit 33 from the speaker 36.

  The storage unit 37 is configured by a non-volatile memory or the like and stores information input from the input unit 31 as will be described in detail later. For example, information for designating the detection device, a predetermined frequency band in the presence information generation device 10, an action pattern and personal information of the person to be confirmed 50, an outing schedule for the person to be confirmed 50, and the like are stored in the storage unit 37.

  The communication unit 38 controls communication with the Internet network 70 that is an external communication network. Specifically, the communication with the presence information generation apparatus 10 is controlled such that presence information generated by the presence information generation apparatus 10 is received via the Internet network 70. Information such as information specifying the detection device, a predetermined frequency band in the presence information generation device 10, behavior patterns and personal information of the person to be confirmed 50, an outing schedule of the person to be confirmed 50, etc. are transmitted via the Internet network 70. It is transmitted to the presence information generation apparatus 10.

  As illustrated in FIG. 7, the detection device 20 includes a control unit 27, an infrared I / F 22, an infrared sensor 23, a storage unit 24, and a communication unit 25.

  Although not shown, the control unit 27 includes a CPU 11, a ROM 12, a RAM 13, and the like, and controls the entire detection device 20. The infrared I / F 22 controls communication between the infrared sensor 23 and the control unit 27. When the infrared sensor 23 irradiates infrared rays within a predetermined range and detects the person 50 to be confirmed, the infrared sensor 23 supplies the control unit 27 with a predetermined detection signal via the infrared I / F 22.

  The storage unit 24 is configured by a non-volatile memory or the like, and stores information on detection signals output from the detection device 20. The communication unit 25 controls communication with the presence information generation apparatus 10. Specifically, when the detection apparatus 20 detects the person to be confirmed 50, a predetermined detection signal is transmitted to the presence information generation apparatus 10 according to an instruction from the control unit 27.

[4. Specific Processing of Presence Information Generation Device 10]
Processing of the receiving means, converting means, extracting means, and presence information generating means executed by the presence information generating apparatus 10 described above will be described with reference to FIG. This process is executed by the control unit 14 of the presence information generation apparatus 10, and the control unit 14 functions as a reception unit, a conversion unit, an extraction unit, a generation unit, and the like.

  As shown in FIG. 8, a plurality of detection devices 20, 21... Nn are arranged inside the house 40, and when each detection device detects the action of the person to be confirmed 50 in the house 40, predetermined detection devices 20, 21. The detection signal is transmitted to the presence information generation apparatus 10.

  Detection signals transmitted from the detection devices 20, 21... Nn to the presence information generation device 10 are received by the control unit 14 via the sensor input unit 17. The sensor input unit 17 includes a selector 91, and a detection signal is input to the control unit 14 via the selector 91. The selector 91 selects the received detection signal. When the detection device used for generating the presence information of the person to be confirmed 50 is designated in advance, only the detection signal from the designated detection device is selected. This is sent to the trigger sampling unit 81 of the control unit 14.

  As described above, in the present embodiment, a detection device that outputs a detection signal used for generating presence information of the person to be confirmed 50 can be designated in advance. The designation of the detection device can be set in the notification device 30. When the detection device is designated by the notification device 30, information for designating the detection device is transmitted to the presence information generation device 10 in this manner, and the designation mode decision is made. Part 88. The designation mode determination unit 88 controls the selector 91 so that only the detection signal of the designated detection device is input to the trigger sampling unit 81.

  When receiving a detection signal as a receiving means, the trigger sampling unit 81 stores reception information (reception date and time) of the detection signal in the data storage unit 82. The data storage unit 82 is a storage area allocated to the storage unit 16 of the presence information generation device 10 and can store reception information of detection signals for each of the plurality of detection devices 20, 21.

  The data collection unit 83 generates reception information of detection signals from the detection device designated by the designation mode determination unit 88 in order to generate presence information, with a predetermined period as one unit (for example, one week). Collected from the data storage unit 82. Thereby, for example, as shown in FIG. 2A, reception information of detection signals from the detection device 20 for one week is collected.

  The FFT operation unit 84 converts the detection signal for one week as frequency conversion information into frequency spectrum information by fast Fourier transform. Thereby, for example, as shown in FIG. 2B, the information is converted into frequency spectrum information.

  The frequency filter unit 85 extracts information on a predetermined frequency band from the frequency spectrum information by filtering the frequency spectrum information output from the FFT operation unit 84 in a predetermined frequency band as an extraction unit. For example, as shown in FIG. 3A, the frequency filter unit 85 extracts a frequency band of 5 to 9 (Hz). Moreover, as shown in FIG.3 (b), the frequency filter part 85 extracts the frequency band of 49-61 (Hz).

  The extraction value determination unit 86 compares the extracted frequency band with a predetermined determination threshold as generation means, and generates presence information according to the result. The determination result notification unit 87 transmits the presence information generated via the communication unit 18 to the notification device 30. The presence information transmitted to the notification device 30 is instant messaging as shown in FIG.

  Here, the “predetermined period”, which is a unit for collecting the reception information of the detection signal by the data collection unit 83, the “frequency band” extracted by the frequency filter unit 85, and “ The “determination threshold” will be described with reference to FIG. FIG. 9 is a diagram illustrating setting data for each of a plurality of detection devices.

  As shown in FIG. 9, a determination period, a filter, and a determination threshold are set in advance for each of the plurality of detection devices 20, 21. The determination period is a “predetermined period” during which the data collection unit 83 collects reception information of detection signals from the detection device. The filter is a “frequency band” that the frequency filter unit 85 extracts from frequency spectrum information. The determination threshold is a determination value for determining the contents of the presence information by comparing the levels of the frequency bands extracted by the extraction value determination unit 86.

  In this way, the presence information generation apparatus 10 can generate presence information with individual setting data for a plurality of detection signals having different detection contents by the plurality of detection apparatuses 20, 21... Nn.

  The setting data for each of the plurality of detection devices shown in FIG. 9 is stored in advance in the storage unit 16 of the presence information generation device 10, but the setting data is stored based on the setting input information received from the notification device 30. Can be changed. That is, the notification device 30 includes an input unit 31 as setting means for setting or changing a filter used in the frequency filter unit 85. The input unit 31 can set not only the filter shown in FIG. 9 but also a determination period and a determination threshold.

  For example, when the setting input information received from the notification device 30 is a predetermined frequency band, the control unit 14 determines a filter for extracting the predetermined frequency band and stores the setting data stored in the storage unit 16. To change. In addition, when the setting input information is the behavior pattern, age, and sex of the person 50 to be confirmed, the control unit 14 sets the setting data (filter for extracting a predetermined frequency band, Determination threshold value) is determined, and the setting data stored in the storage unit 16 is changed. The notification device 30 transmits the setting input information to the presence information generation device 10 using the communication unit 38 as setting result transmission means for transmitting the setting result of the input unit 31 to the presence information generation device 10.

  When receiving the setting input information, the control unit 14 of the presence information generating apparatus 10 rewrites and updates setting data stored in a predetermined area of the storage unit 16 based on the setting input information. Thereafter, the control unit 14 of the presence information generation apparatus 10 generates presence information based on the updated setting data.

  When the setting input information received from the notification device 30 is the going-out schedule of the person to be confirmed 50, the control unit 14 stops the generation of presence information during this outing period. For example, the control unit 14 does not receive the detection signal from the detection device during the outing period. Further, the control unit 14 collects the detection signals from the storage unit 16 without including the outing period as the “predetermined period”. In this way, the generation of presence information during the outing period is stopped.

  Hereinafter, processing executed by the presence information generation apparatus 10 will be described with reference to FIGS. 10 and 11. FIG. 10 is a diagram illustrating a flow of main processing executed by the presence information generation apparatus 10. FIG. 11 is a diagram showing a flow of presence information generation / notification processing executed by the presence information generation apparatus 10.

  The main process of FIG. 10 and the presence information generation / notification process of FIG. 11 are executed by the control unit 14 of the presence information generation apparatus 10 when the presence information generation apparatus 10 is powered on. First, the main process will be described with reference to FIG.

  In step S101, the CPU 11 of the control unit 14 determines whether it is time to generate presence information. If it is determined that it is time to generate presence information (step S101: Yes), the CPU 11 proceeds to step S102. Transfer. On the other hand, when determining that it is not time to generate presence information (step S101: No), the CPU 11 shifts the processing to step S103.

  The timing for generating the presence information determined in step S101 is the determination period set for each of the detection devices 20, 21... Nn shown in FIG. 9, and the presence information is generated for each of the detection devices 20, 21. Timing is different. That is, the CPU 11 generates presence information at a predetermined timing for each of the detection devices 20, 21. In addition to the determination period described above, for example, the timing for generating presence information can be determined in advance.

  In step S102, the CPU 11 executes presence information generation / notification processing. As will be described in detail later, this presence information generation / notification processing generates presence information of the person to be confirmed 50 based on detection signals for each of the detection devices 20, 21. When this process ends, the CPU 11 moves the process to step S103.

  In step S103, the CPU 11 determines whether or not detection signals from the plurality of detection devices 20, 21... Nn have been received (step S103). If it is determined that the detection signal has been received (step S103: Yes), the CPU 11 moves the process to step S104, and stores the reception information of the detection signal in a predetermined area of the storage unit 16 for each of the detection devices 20, 21. . When this process ends, the CPU 11 shifts the process to step S105. On the other hand, when determining that the detection signal is not received (step S103: No), the CPU 11 shifts the processing to step S105.

  In step S105, the CPU 11 determines whether or not setting input information has been received from the notification device 30 (step S105). In this process, if it is determined that the setting input information has been received (step S105: Yes), the CPU 11 sets the setting data (FIG. 9) stored in a predetermined area of the storage unit 16 in accordance with the setting input information in step S106. (Ref.) To update. When this process ends, the CPU 11 shifts the process to step S107. On the other hand, when determining that the setting input information has not been received (step S105: No), the CPU 11 shifts the processing to step S107.

  In step S107, the CPU 11 determines whether or not the end of the main process has been detected. If the CPU 11 determines that the end has been detected (step S107: Yes), the CPU 11 ends the main process. On the other hand, when determining that the end is not detected (step S107: No), the CPU 11 shifts the processing to step S101.

  The detection of the end of the main process determined in step S107 is detected, for example, when the power supply of the presence information generation apparatus 10 is shut off. However, in other cases, the presence information generation apparatus 10 is suspended. It is also possible to detect a predetermined signal.

  Next, presence information generation / notification processing will be described with reference to FIG.

  In step S <b> 201, the CPU 11 collects reception information of detection signals in a determination period (see FIG. 9) corresponding to the plurality of detection devices 20, 21... Nn from a predetermined area of the storage unit 16. The process of step S201 is a process executed by the CPU 11 functioning as the data collection unit 83 (see FIG. 8) described above.

  In step S202, the CPU 11 converts the collected detection signals into frequency spectrum information. The process of step S202 is a process executed by the CPU 11 functioning as the above-described conversion unit FFT calculation unit 84 (see FIG. 8), and the detection signal of the determination period is converted into frequency spectrum information by fast Fourier transform. To do.

  In step S <b> 203, the CPU 11 performs filter processing on the frequency spectrum information to extract information on a predetermined frequency band from the frequency spectrum information. The process of step S203 is a process executed by the CPU 11 functioning as the frequency filter unit 85 serving as the extraction unit described above.

  In step S <b> 204, the CPU 11 compares the extracted information of the predetermined frequency band with the determination threshold (see FIG. 9), and determines whether or not the determination threshold is exceeded. In this process, if it is determined that the value is equal to or greater than the determination threshold value (step S204: Yes), the CPU 11 proceeds to the process to step S205, and the presence information that the confirmation target person 50 is normal (see FIG. 4A). Generate and notify the notification device 30. When this process ends, the CPU 11 ends the presence information generation / notification process. On the other hand, when determining that the value is not equal to or greater than the determination threshold (step S204: No), the CPU 11 moves the process to step S206.

  In step S206, the CPU 11 activates a predetermined detection device. This predetermined detection device is installed in, for example, a bedroom where there is a high possibility that the person to be confirmed 50 is present. In step S204, when it is determined that the predetermined frequency band extracted by the CPU 11 is not equal to or higher than the determination threshold, the CPU 11 is activated to confirm the presence of the person to be confirmed 50. Thereby, when the to-be-confirmed person 50 exists in a bedroom, the presence can be confirmed.

  In step S207, the CPU 11 determines whether or not the difference between the extracted information on the predetermined frequency band and the determination threshold (see FIG. 9) is large. If it is determined in this process that the difference is large (step S207: Yes), the CPU 11 moves the process to step S208. On the other hand, when determining that the difference is not large (step S207: No), the CPU 11 shifts the processing to step S210.

  In step S <b> 208, the CPU 11 generates presence information (see FIG. 4C) that the confirmation target person 50 is abnormal and needs an emergency, and notifies the notification device 30 of the presence information. In step S209, the CPU 11 notifies the notification device 30 of the detection result of the predetermined detection device activated in step S206. In other words, when the presence information indicating that the abnormality is necessary and urgent is generated, the latest detection result of a predetermined detection device installed in a place where the person to be confirmed 50 is likely to be present is also added to the notification device 30. Notice. Thereby, the owner of the notification device 30 can quickly cope with the notified presence information and the latest detection result of the predetermined detection device. When this process ends, the CPU 11 ends the presence information generation / notification process.

  In step S <b> 210, the CPU 11 generates presence information (see FIG. 4B) that indicates that the person to be confirmed 50 is not good but does not require an emergency, and notifies the notification device 30 of the presence information. To do. When this process ends, the CPU 11 ends the presence information generation / notification process.

  Hereinafter, the presense information display process in the notification device 30 will be described with reference to FIG. FIG. 12 is a diagram illustrating a flow of presence information display processing executed by the notification device 30. The presence information display process is a process that is always executed while the notification device 30 is powered on.

  In step S301, the control unit 32 of the notification device 30 determines whether or not presence information has been received, and if it is determined that presence information has been received (step S301: Yes), the CPU 11 receives the presence information received in step S302. Information is displayed on the display unit 30a. When this process ends, the control unit 32 moves the process to step S303. On the other hand, if it is determined that the presence information has not been received (step S301: No), the control unit 32 moves the process to step S303.

  In step S303, the control unit 32 determines whether there is a setting input. If it is determined that there is a setting input (step S303: Yes), the control unit 32 generates setting input information in step S304. Transmit to device 10. When this process ends, the control unit 32 moves the process to step S305. On the other hand, when determining that there is no setting input (step S303: No), the control unit 32 moves the process to step S305.

  In this step S304, the setting input information transmitted to the presence information generation device 10 is, for example, a predetermined frequency band used in the frequency filter unit 85 that is an extraction means for the presence information generation device 10 to generate presence information. And various setting data (see FIG. 9). The setting input information includes at least one of information designating the detection device (information on the detection device for confirming presence information of the confirmation target person 50), an action pattern of the confirmation target person 50, and age / sex. Any one piece of input information can also be included. Furthermore, information on the going-out schedule of the person to be confirmed 50 can also be included.

  That is, the control unit 32 of the notification device 30 functions as a setting unit and a setting result transmission unit that set a predetermined frequency band to be extracted by the extraction unit of the presence information generation device 10. In addition, the input unit 31 of the notification device 30 inputs at least one of detection device information for confirming presence information of the person to be confirmed 50, an action pattern of the person to be confirmed 50, and age / sex. Functions as input means and input result transmission means. Further, the input unit 31 of the notification device 30 also functions as an outing schedule input unit that inputs information on the outing schedule of the person to be confirmed 50. In addition, the communication unit 38 of the notification device 30 functions as an outing schedule transmission unit that transmits information on the outing schedule to the presence information generation device 10.

  In step S305, the control unit 32 determines whether or not the end of the presence information display process has been detected. If the control unit 32 determines that the end has been detected (Yes in step S305), the control unit 32 determines that the presence information display process has ended. Exit. On the other hand, if it is determined that the end has not been detected (step S305: No), the process proceeds to the control unit 32 and step S301.

  The end of the presence information display process determined in step S305 is detected, for example, when the notification device 30 is powered off. It is also possible to detect this signal.

  Although some of the embodiments of the present invention have been described in detail with reference to the drawings, these are exemplifications, and the present invention is implemented in other forms with various modifications and improvements based on the knowledge of those skilled in the art. Is possible.

  For example, the presence information generation apparatus 10 is provided with an initial setting mode, and the control unit 14 determines the “predetermined period”, “frequency band” in the setting data based on the detection signal output from the detection apparatus during the initial setting mode. And “determination threshold value” may be determined. By doing in this way, it can be set as setting data according to the action pattern of the person to be confirmed 50, and the presence information of the person to be confirmed 50 can be appropriately generated.

  The reception information (reception date and time) of the detection signal is stored in the data storage unit 82, but the time width of the detection signal may also be stored in the data storage unit 82. By doing in this way, the usage time etc. of the toilet 41 can also be detected, for example.

  Although the present invention has been described through the above-described embodiments, the following effects can be expected from the presence information generation system, presence information generation apparatus, and presence information generation program of the present embodiment.

  (1) It is installed indoors, and when the confirmation target person 50 performs a predetermined action, the detection device 20 that outputs a detection signal and presence information indicating the state of the confirmation target person 50 are generated based on the detection signal In the presence information generation system including the presence information generation apparatus 10 that performs the detection, the presence information generation apparatus 10 includes a trigger sampling unit 81 (reception unit) that receives a detection signal output from the detection apparatus 20, and a detection within a predetermined period. The signal is extracted by the FFT calculation unit 84 (conversion unit) that converts the signal into frequency spectrum information, the frequency filter unit 85 (extraction unit) that extracts information of a predetermined frequency band from the frequency spectrum information, and the frequency filter unit 85. Extraction value determination unit 86 (generation means) that generates presence information of the person to be confirmed 50 based on information of a predetermined frequency band , Since the presence information generation system characterized by having, it is possible to generate the presence information corresponding to the state of the check subject 50 by a relatively simple process.

  (2) The frequency filter unit 85 (extraction unit) sets information of a predetermined frequency band as information of two or more frequency bands, and the extraction value determination unit 86 (generation unit) stores information of information of two or more frequency bands. Since the presence information of the person to be confirmed 50 is generated based on each of them, for example, the presence information of the person to be confirmed 50 in units of one day, weekly or monthly can be generated.

  (3) Since there are a plurality of detection devices 20, 21... Nn, and the extraction value determination unit 86 (generation means) generates presence information of the person to be confirmed 50 for each detection device 20, 21. For example, it is possible to generate comprehensive presence information of the person to be confirmed 50 in daily life.

  (4) Since the notification device 30 that notifies the presence information of the person to be confirmed 50 output from the presence information generation device 10 is provided, for example, relatives of the person to be confirmed 50 who resides in a remote place Thus, the presence information of the person to be confirmed 50 can be notified.

  (5) The notification device 30 includes an input unit 31 (setting unit) for setting a predetermined frequency band to be extracted by the frequency filter unit 85 (extraction unit) of the presence information generation device 10 and a setting result by the input unit 31. And a communication unit 38 (setting result transmission means) that transmits to the presence information generation device 10, and the frequency filter unit 85 of the presence information generation device 10 has a frequency band based on the setting result transmitted from the notification device 30. Since the information is extracted from the information of the frequency spectrum, for example, the condition for generating the presence information of the person to be confirmed 50 can be changed.

  (6) The notification device 30 includes information on the detection devices 20, 21... Nn for confirming the presence information of the confirmation target person 50, the behavior pattern of the confirmation target person 50, and the age and sex of the confirmation target person 50. The presence unit includes an input unit 31 (input unit) for inputting at least one of them, and a communication unit 38 (input result transmission unit) for transmitting an input result by the input unit 31 to the presence information generating apparatus 10. Since the generation device 10 includes a determination unit that determines a predetermined frequency band for performing extraction processing by the frequency filter unit 85 (extraction unit) based on the input result transmitted from the notification device 30, Presence information based on 50 personal information can be generated.

  (7) The notification device 30 uses the input unit 31 (outing schedule input means) for inputting information on the going-out schedule of the person to be confirmed 50 and the information on the going-out schedule input to the input unit 31 as the presence information generating device 10. And the presence information generating apparatus 10 stops generating the presence information of the person to be confirmed 50 based on the information of the going-out schedule transmitted by the communication unit 38. Therefore, for example, when the confirmation target person 50 is away, abnormal presence information having a different pattern from that at home is not generated.

  (8) A trigger sampling unit 81 (reception unit) that receives a detection signal output from the detection device 20 that is disposed indoors and outputs a detection signal when the confirmation target person 50 performs a predetermined action; An FFT calculation unit 84 (conversion unit) that converts a detection signal within a period into frequency spectrum information, a frequency filter unit 85 (extraction unit) that extracts information of a predetermined frequency band from the frequency spectrum information, and an extraction unit Since it has the extracted value determination unit 86 (generation means) that generates presence information of the person to be confirmed 50 based on the extracted information of the predetermined frequency band, the person to be confirmed is obtained by a relatively simple process. Presence information corresponding to 50 states can be generated.

  (9) A trigger sampling unit 81 (reception unit) that receives a detection signal output from the detection device 20 that is disposed indoors and outputs a detection signal when the person 50 to be confirmed performs a predetermined action; An FFT calculation unit 84 (conversion unit) that converts a detection signal within a period into frequency spectrum information, a frequency filter unit 85 (extraction unit) that extracts information of a predetermined frequency band from the frequency spectrum information, and an extraction unit Since the computer is caused to function as the extraction value determination unit 86 (generation means) that generates presence information of the person to be confirmed 50 based on the extracted information of the predetermined frequency band, it is confirmed by a relatively simple process. Presence information corresponding to the state of the target person 50 can be generated.

DESCRIPTION OF SYMBOLS 10 Presence information generation apparatus 20 Detection apparatus 30 Notification apparatus 40 Housing 50 Person to be confirmed 60 Server 70 Internet network

Claims (9)

A detection device that is disposed indoors and outputs a detection signal when the confirmation target person performs a predetermined action; and a generation device that generates presence information indicating the state of the verification target person based on the detection signal; In the presence information generation system with
The generator is
Receiving means for receiving the detection signal output from the detection device;
Conversion means for converting the detection signal within a predetermined period into frequency spectrum information;
Extraction means for extracting information of a predetermined frequency band from the information of the frequency spectrum;
A presence information generation system comprising: generation means for generating presence information of the person to be confirmed based on information of the predetermined frequency band extracted by the extraction means. The extraction means uses the information of the predetermined frequency band as information of two or more frequency bands,
The presence information generation system according to claim 1, wherein the generation unit generates presence information of the person to be confirmed based on each of the information of the two or more frequency bands. A plurality of the detection devices;
The presence information generation system according to claim 1, wherein the generation unit generates presence information of the person to be confirmed for each detection device.   The presence information generation system according to any one of claims 1 to 3, further comprising a notification device that notifies presence information of the person to be confirmed output from the generation device. The notification device
Setting means for setting the predetermined frequency band to be extracted by the extraction means of the generation device;
Setting result transmission means for transmitting the setting result by the setting means to the generating device,
5. The presence information generation system according to claim 4, wherein the extraction unit of the generation device extracts information on a frequency band based on the setting result transmitted from the notification device from information on the frequency spectrum. The notification device
Input means for inputting at least one of the information on the detection device for confirming presence information of the person to be confirmed, the behavior pattern of the person to be confirmed, and the age and sex of the person to be confirmed; ,
Input result transmission means for transmitting an input result by the input means to the generation device,
The generator is
5. The presence information generation system according to claim 4, further comprising: a determination unit that determines the predetermined frequency band for performing extraction processing by the extraction unit based on the input result transmitted from the notification device. The notification device
Outing schedule input means for inputting information on the going out schedule of the person to be confirmed;
Outing schedule transmission means for transmitting the information of the outing schedule input to the outing schedule input means to the generation device,
The said generation apparatus stops generation | occurrence | production of the presence information of the said to-be-confirmed person based on the information of the said going-out schedule transmitted by the said going-out schedule transmission means, The any one of Claims 4-6 characterized by the above-mentioned. The presence information generation system described in 1. A receiving means for receiving the detection signal output from a detection device that is disposed indoors and outputs a detection signal when the person to be confirmed performs a predetermined action;
Conversion means for converting the detection signal within a predetermined period into frequency spectrum information;
Extraction means for extracting information of a predetermined frequency band from the information of the frequency spectrum;
A presence information generation apparatus comprising: generation means for generating presence information of the person to be confirmed based on information of the predetermined frequency band extracted by the extraction means. A receiving means for receiving the detection signal output from a detection device that is disposed indoors and outputs a detection signal when the person to be confirmed performs a predetermined action;
Conversion means for converting the detection signal within a predetermined period into frequency spectrum information;
Extraction means for extracting information of a predetermined frequency band from the information of the frequency spectrum;
A presence information generation program that causes a computer to function as generation means for generating presence information of the person to be confirmed based on information of the predetermined frequency band extracted by the extraction means.

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