WO2006109981A1

WO2006109981A1 - Rescue notification system

Info

Publication number: WO2006109981A1
Application number: PCT/KR2006/001326
Authority: WO
Inventors: Moon Seok Cho
Original assignee: Wisembed Company Limited
Priority date: 2005-04-12
Filing date: 2006-04-11
Publication date: 2006-10-19
Also published as: KR100720924B1; KR20060001995A

Abstract

The present invention provides an rescue notification device and an rescue notification method. The rescue notification device includes: a photographing unit photographing a space which a resident enters and leaves; a memory storing a time zone when the resident is present in the space and a time zone when the space is lighted or not as a behavior pattern of the resident; and a monitoring and analyzing unit analyzing information obtained from the photographing unit and outputting a notification signal to a call destination via a communication unit when the analysis result differs from the behavior pattern stored in the memory. The rescue notification device according to the present invention is easy to install and is capable of notifying a call destination of the occurrence of an rescue in a reliable manner by only directing the photographing unit toward the space which a resident enters and leaves and prevent a household accident of the resident. In addition, it is possible to prevent unnecessarily transmitting a notification signal in the absence of resident and output an alarm signal to a call destination by an alarm output unit when a strange movement is captured in a space. As a result, it is possible to prevent a household accident of an elderly person living alone or a weak person and provide a surveillance function.

Description

RESCUE NOTIFICATION SYSTEM

Technical Field

[1] The present invention relates to an rescue notification device and more particularly to an rescue notification device in which a behavior pattern of an elderly person living alone is monitored and a predetermined call destination is automatically notified of an occurrence of an rescue via a communication unit when the rescue (a household accident) has occurred. Background Art

[2] A conventional rescue notification device for an elderly person living alone is constructed in such a manner that a predetermined call destination is notified of the occurrence of an rescue via a communication unit by pressing a button on a pendant worn on the elderly person or pressing an rescue dial button installed at a house. Disclosure of Invention Technical Problem

[3] However, in the conventional rescue notification device for an elderly person living alone, there is a problem in that the rescue notification function is not activated at all and the notification of the occurrence of an rescue is not properly performed in an rescue when the elderly person living in the house does not press the button being unconscious of the occurrence of the rescue.

[4] To solve such a problem, Japanese Unexamined Patent Application Publication No.

2000-011282 discloses an improved rescue notification device in which a behavior pattern of a resident is detected by sensors installed in a television set, faucets, a gas range, door knobs, and the like, it is determined that an rescue situation has occurred to the resident when there is no changes in the behavior pattern of the resident for a predetermined period of time, and a predetermined call destination is automatically notified of the occurrence of the rescue via a communication line.

[5] In the rescue notification device disclosed in the above mentioned Patent

Publication, it is advantageous that the notification of the occurrence of an rescue is properly performed in an rescue by the use of sensors for monitoring the behavior pattern of the resident without a need of the resident's own will. However, there are problems such as difficulty to touch the points where the sensors are installed, such as a television set and door knobs in order to activate the rescue notification device, wires need to be extended from a respective sensor to a main body of the rescue notification device, and the facilities thereof become large-scaled. Technical Solution [6] In view of such problems, the present invention provides an rescue notification d evice which is easy to install and is capable of notifying a call destination of the occurrence of an rescue in a reliable manner.

[7] According to an aspect of the present invention, there is provided an rescue notification device comprising: a photographing unit photographing a space which a resident enters and leaves; a memory storing a time zone when the resident is present in the space and a time zone when the space is lighted or not as a behavior pattern of the resident; and a monitoring and analyzing unit analyzing information obtained from the photographing unit and outputting a notification signal to a call destination via a communication unit when the analysis result differs from the behavior pattern stored in the memory.

[8] In this case, as an example of the space which a resident enters and leaves, the photographing unit takes pictures of the living room where an elderly person spends time in his normal times. The memory stores a time zone when the elderly person is present in the living room and a time zone when the living room is lighted or not according to turning a night-time illuminator on and off. In a case where the presence of the elderly person is not identified on the basis of the photographed information obtained from the photographing unit even in the time zone when the elderly person is supposed to be present in the living room, or when it is not identified that the illuminator is turned on in the photographed information even in the time zone when the night-time illuminator is supposed to be turned on, it is determined that an accident has happened to the elderly person, such as an occasion where the elderly person is not able to move at all, and a notification signal is automatically output to a call destination. As a result, it is possible to automatically notify the call destination of the occurrence of the rescue when the resident leaves out of his normal behavior pattern by only directing the photographing unit toward the space which a resident enters and leaves and prevent a household accident of the resident.

[9] According to another aspect of the present invention, there is provided an rescue notification device including an operation unit operating when the resident is absent; and an alarm output unit interrupting the monitoring and analyzing unit in response to an operation signal from the operation unit and outputting an alarm signal to the call destination via the communication unit when movement is sensed from the photographed information.

[10] According to another aspect of the present invention, there is provided an rescue notification device including: a memory having a program therein for performing at least one of a dialing function, an rescue dial function, a messaging function, an order function, and a cancel function, wherein the memory performs a corresponding function selected from the dialing function, the rescue dial function, the messaging function, the order function, and the cancel function by a touch panel or a press button.

[11] According to another aspect of the present invention, there is provided an rescue notification method including the steps of: storing a behavior pattern in a pattern storing unit; determining whether a leave mode is set or not; when the leave mode is not set, comparing by a pattern monitoring unit information input from a wide angle camera or a shotgun microphone and information about the behavior pattern stored in the pattern storing unit and outputting a notification signal to a center serve when information about the behavior pattern does not match with the information input from the wide angle camera or the shotgun microphone; and when the leave mode is set, outputting an alarm signal informing an illegal entry to a center server when a leave monitor determines that the information input from the wide angle camera or the shotgun microphone is a kind of information that cannot be generated in the leave mode.

[12] According to another aspect of the present invention, there is provided an rescue notification method including the steps of: storing a behavior pattern in a pattern storing unit; storing an output time of an audio message to a data area of a memory; determining whether a leave mode is set or not; when the leave mode is not set, the pattern monitoring unit compares information input from a wide angle camera or a shotgun microphone and information about the behavior pattern stored in the pattern storing unit by a pattern monitoring unit and outputs a notification signal to a center server when information about the behavior pattern does not match with the information input from the wide angle camera or the shotgun microphone; or a time checking unit compares the present time and the output time of the audio message; the pattern monitoring unit outputs an audio message when the present time coincides with the output time, receives a confirmation signal in response to the audio message, and determines that it is in a normal pattern of behavior, or outputs a notification signal to the center server when the confirmation signal is not transmitted in a predetermined period of time; and when the leave mode is not set, outputting an alarm signal informing an illegal entry to the center server when a leave monitor determines that the information input from the wide angle camera or the shotgun microphone is a kind of information that cannot be generated in the leave mode.

[13] According to another aspect of the present invention, there is provided an rescue notification method including the steps of: storing a behavior pattern, such as a rising time, a medication time, and an exercise time in advance in a pattern storing unit; storing an output time of an audio message or an alarm signal in a data area of a memory; comparing by a time checking unit the present time and the output time of the audio message or the alarm signal and outputting the audio message or the alarm signal when the output time of the audio message coincide with the output time of the alarm signal; and transmitting a confirmation signal or a dial signal to a center server.

[14] According to another aspect of the present invention, there is provided an rescue notification device including: a photographing unit photographing a space which a resident enters and leaves; a frequency calculating unit calculating the degree of change in the space as a frequency in a time zone on the basis of the photographed information obtained from the photographing unit; a frequency storing unit storing the frequency in the time zone for a predetermined period of time as a behavior pattern of the resident; an average value calculating unit calculating an average value of the frequency, which is read from the frequency storing unit, in the time zone for the predetermined period of time; a weight storing unit storing a weight value assigned to each time zone, in which a greater weight value is assigned to a time zone having a greater monitoring significance; and a monitoring and analyzing unit outputting a notification signal to a call destination via a communication unit, in which when a frequency in a time zone obtained from the frequency calculating unit deviates from an allowable range including the average value of the frequency in the same time zone obtained from the average value calculating unit whenever the frequency calculating unit calculates a frequency in a time zone, the monitoring and analyzing unit accumulates the weight value assigned to the same time zone read from the weight storing unit and outputs the notification signal to the call destination when the accumulated weight value reaches a predetermined boundary value.

[15] In this case, it is possible to automatically notify the call destination of the occurrence of the rescue when the resident leaves out of his normal behavior pattern by only directing the wide angle camera toward the space which a resident enters and leaves and thereby preventing a household accident of the resident.

[16] In addition, according to the modified embodiment, the weight values in the time zone are accumulated when a sign of rescue is found in each time zone. Further, the notification signal is output when it is determined that an rescue is actually occurred only when the accumulated weight values reach a predetermined alarm score. Therefore, the notification signal is not output when a sign of rescue appears in a time zone due to a short term leave, for example. Thus, it is possible to reduce the chance of outputting an erroneous notification signal. Moreover, since a greater weight value is assigned to a time zone having a greater monitoring significance, it is possible to detect an rescue in an early stage by the reduced time for determining the rescue in the time zone. On the other hand, since a lower weight value is assigned to a time zone having a less significance, it is possible to reduce the chance of outputting an erroneous notification signal by the increased time for determining the rescue in the time zone.

[17] The rescue notification device may further comprise an audio input unit receiving audio information in the space, in which the frequency calculating unit calculates the degree of change in the space as the frequency in a time zone on the basis of the photographed information and the audio information. By this arrangement, it is possible to precisely determine the occurrence of an rescue on the basis of the photographed information and the audio information in the space.

[18] When a new frequency in a time zone is calculated, the frequency calculating unit may remove the oldest frequency in a predetermined period of time from the frequency storing unit and store the new frequency in the frequency storing unit. By this arrangement, it is possible for the frequency value for a predetermined period of time as the behavior pattern of the resident to keep track of the latest information in consideration of the seasonal factors.

[19] The rescue notification device may further comprise an operation unit operating when the resident is absent; and an alarm output unit interrupting the monitoring and analyzing unit in response to an operation signal from the operation unit and outputting an alarm signal to the call destination via the communication unit when movement is sensed from the photographed information.

[20] When the elderly person moves away from the living room for the purpose of a visit, the operation unit is pressed in order to inform the absence of the elderly person. Since the monitoring and analyzing unit stops to operate when the leave button 75 is pressed, it is possible to prevent unnecessarily transmitting the notification signal in the absence of the elderly person. In addition, the alarm output unit outputs an alarm signal to a call destination when a strange movement is captured by the photographing unit in the absence of the elderly person. By this arrangement, the rescue notification device according to the present invention can be used for a household accident surveillance function and a crime preventing function. Brief Description of the Drawings

[21] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

[22] FIG. 1 is a front view showing an rescue notification device according to an embodiment of the present invention;

[23] FIG. 2 is a side view showing the rescue notification device when taken from the left thereof;

[24] FIG. 3 is a schematic view showing the entire construction of a rescue system including the rescue notification device;

[25] FIG. 4 is a block diagram showing an electrical construction of the rescue notification device;

[26] FIG. 5 is a block diagram showing a functional structure of the rescue notification device;

[27] FIG. 6 is a flowchart showing the operation sequence of the rescue notification device;

[28] FIG. 7 is a front view of an LCD showing an exemplary aspect of a top menu in the rescue notification device;

[29] FIG. 8 is a front view of an LCD displayed when dialing to a center server is being attempted;

[30] FIG. 9 is a front view of an LCD displayed when the dialing to the center server is completed;

[31] FIGS. 10 and 11 are front views of an LCD displayed when a personal matter button is pressed;

[32] FIG. 12 is a front view of an LCD displayed when the present time coincides with the output time of a message;

[33] FIG. 13 is a front view of an LCD displayed when a telephone call using a videophone is being made;

[34] FIG. 14 is a block diagram showing a functional structure of an rescue notification device according to a modified embodiment of the present invention; and

[35] FIG. 15 is a graph for explaining a method of determining rescue.

Best Mode for Carrying Out the Invention

[36] The attached drawings for illustrating exemplary embodiments of the present invention are referred to in order to gain a sufficient understanding of the present invention, the merits thereof, and the objectives accomplished by the implementation of the present invention.

[37] Hereinafter, the present invention will be described in detail with reference to the attached drawings.

[38] FIGS. 1 and 2 are a front view and a side view of an rescue notification device 1 used in this embodiment, respectively, in which a reference numeral 2 indicates a rectangular exterior body constituting the outline of the rescue notification device and a reference numeral 3 indicates an a liquid crystal display (LCD) as the display unit which has a transparent touch panel mounted thereon and is connected to a window aperture formed in the front surface of the exterior body 2. A wide angle camera 5 as a photographing unit is integrated on top of the front surface of the exterior body and is directed toward a space (for example, a living room) which a resident enters and leaves. The wide angle camera 5 is capable of capturing a movement in the living room at a low illumination level and is mounted on a pivot mechanism provided in the exterior body 2 so that the camera 5 can take pictures of the living room at various directions (vertical and horizontal directions). [39] A reference numeral 7 indicates a shotgun microphone as an audio input unit which converts audios generated in the living room including the audio generated by the resident to an electrical signal. The shotgun microphone illustrated herein is provided to be separated from the exterior body 2 by a cable 8 and is structured to make no howl at a great audio level. The shotgun microphone 7 may be provided to be integrated to the exterior body 2. The photographed information obtained from the wide angle camera 5 and the audio information obtained from the shotgun microphone is input to a controller describe later to be processed in a real-time basis. A reference numeral 9 indicates a speaker as an audio output unit which is provided in a lower portion of the exterior body 2 and outputs various messages as needed to the resident.

[40] A power source 11 and a control unit are provided inside the exterior body 2. The power source 11 converts an AC voltage to a direct current and supplies the converted current to a respective unit such as the LCD 3, the wide angle camera 5, and the control unit 12. The control unit 12 is provided in the opposite side of the LCD 3 in the exterior body 2 and monitors the photographed information obtained from the wide angle camera 5 and the audio information obtained from the shotgun microphone 7. Details of the functional construction of the control unit will be described later.

[41] A reference numeral 15 indicates a pendant which the elderly person (a resident) carries along and which may be worn on the neck of the elderly person. The pendant 15 is not physically connected to the exterior body 2 and is constructed such that an rescue dial signal is wirelessly transmitted to the exterior body 2 by the manipulation of an rescue button provided on the pendant 15.

[42] FIG. 3 illustrates a case where the rescue notification device 1 is used as a terminal for connecting to an Internet network 18. The rescue system illustrated herein is constructed by connecting one or a plurality of rescue notification devices 1 and a center server 21 to the Internet network 18. One or a plurality of call receiving parties' terminals 31 as needed are provided at places of a supervisor or a helper in the rescue system. In the rescue notification device, as will be described later, a notification signal or an alarm signal is output by the control unit 12 via the internet network 18 and is received by the center serve 21 or the call destination's terminal 31.

[43] The center server 21 may be a personal computer and includes an operation unit such as a keyboard 24 and a mouse 25, a display unit such as a TV monitor 26, and a main control body 27 having a modem for connecting to the Internet network 18. Needless to say, the center server may have another arrangement. Another communication unit may be used as a substitute for the internet network 18 for enabling a bidirectional communication to the rescue notification device 1 at a remote site.

[44] The call destination's terminal 31 includes an LCD 33 as a display unit which has a transparent touch panel mounted on the surface of a rectangular exterior body 32 con- stituting the outline of a main body, a wide angle camera 35 as a rotating photographing unit, and a speaker as an audio output unit. Each unit has same elements as those of the LCD 3, the wide angle camera 5, and the speaker 9 in the rescue notification device 1. The only exception is that the call destination's terminal 31 illustrated herein includes a telephone 37 having a dialing function in place of the shotgun microphone 7 that was included in the rescue notification device 1 since the call destination's terminal 31 is provided to enable a video or voice conversation with the rescue notification device 1.

[45] An electrical construction of the rescue notification device 1 when placed in the living space of the elderly person will be described with reference to FIG. 4. In FIG. 4, a reference numeral 41 indicates a processing unit provided in the control unit 12. The processing unit 41 includes a video processor 42 such as the wide angle camera 5 for processing video information transmitted via a local area network (LAN) 40 connected via the internet network 18, an audio processor 43 such as the shotgun microphone 7 for processing audio information transmitted via the LAN 40, a video output 44 for converting the video information obtained from the wide angle camera 5 to video data and outputting the video data to the call destination's terminal via the LAN 40 and the internet network 18, an audio controller 45 for controlling the audio level of an audio data to a suitable level and outputting the audio data having a suitable audio level to the speaker 9, a camera controller 46 for rotating the wide angle camera 5 in an arbitrary direction by supplying a command signal to the pivot mechanism mounting the wide angle camera thereon, an LCD controller 47 for outputting a suitable video data to the LCD 3 as needed, a memory 48 for storing a program for operating the processing unit in a predetermined sequence, the behavior pattern of the resident, and the like, a call controller 49 for establishing a call to the call destination^ terminal 31, and a LAN controller 50 incorporating a encoding and decoding unit thereon. A touch panel 52 formed on the surface of the LCD 3 and a wireless receiver 54 having an antenna 53 for receiving an rescue dial signal from the pendant 15 are connected to the control unit 41 so that the control unit 41 can receive an operation signal from the touch panel 52 and the rescue dial signal from the wireless receiver 54.

[46] FIG. 5 illustrates a functional structure of the rescue notification device 41. A reference numeral 61 indicates a pattern storing unit for storing a behavior pattern of the elderly person such as a time zone when the resident is present in the space and a time zone when the space is lighted or not in the night. The pattern storing unit 61 is provided in an area corresponding to a data area of the memory 48 and is storing an individual behavior pattern of the elderly person which is input in advance through the touch panel 52 and the like. A reference numeral 62 indicates a pattern monitoring unit as a monitoring and analyzing unit for analyzing presence of the elderly person and an illumination state on the basis of the photographed information obtained from the wide angle camera 5 in a real-time basis and outputting a notification signal to the center server 21 via the internet network 18 when the analysis result is differed far from the behavior pattern stored in the pattern storing unit 61. The pattern monitoring unit 62 analyzes audio information output from the shotgun microphone 7 as well as the photographed information obtained from the wide angle camera 5. For example, the pattern monitoring unit 62 has a function of outputting a notification signal when an audio information having a greater audio level than a normal level or a strange frequency range such as a crying audio, a sharp audio made by crashed glass are output from the shotgun microphone 7 even though the behavior pattern stored in the pattern storing unit 61 indicates that it is in a time zone when the elderly person is not present in the living room.

[47] A reference numeral 63 indicates a telephone dialer which is activated by touching an operation unit for dialing provided on the touch panel 52. The telephone dialer outputs a dial signal to the center server 21 via the internet network 18 and is connected to the center server 21 to thereby enable a bidirectional video or voice conversation with a call destination's terminal 31 provided at places of a registered supervisor or a helper. At this time, the sensitivity of the shotgun microphone 7 or the output level of the speaker 9 are adjusted to a level registered in advance in the memory 48. However, the sensitivity of the shotgun microphone 7 or the output level of the speaker 9 may be freely changed by the center server 21 according to the call destination's situations.

[48] A reference numeral 64 indicates an rescue dialer which is activated by pressing an rescue button 16 provided on the pendant 15 or touching the operation unit for rescue dialing provided on the touch panel 52 to output an rescue dial signal to the center server 21 as the call destination via the internet network 18. The center server 21 has a function of preferentially displaying the effect that an rescue situation has occurred on a TV monitor 26 in response to the rescue dial signal even when there are another dial signals from a plurality of rescue notification devices 1. By this arrangement, the center server 21 can cope with the rescue dialing preferentially. In response to the rescue dial signal, the sensitivity of the shotgun microphone 7 or the output level of the speaker 9 are changed to a maximum level thereof. The center server 21 identifies the calling party (the elderly person) of the rescue dial signal, obtains an urgent contact number or medical record of the calling party from registrant information stored in a database of the center server 21, and displays the urgent contact number or the medical record on the TV monitor 26.

[49] A reference numeral 65 indicates a leave monitor as an alarm output unit for outputting an alarm signal to the center server 21 as a call destination via the internet network 18. For example, when the elderly person intends to leave the house for a long while for the purpose of visiting a care center and touches an operation unit for leave provided on the touch panel 52, the behavior pattern monitoring operation by the pattern monitoring unit 62 is stopped in response to the operation signal from the operation unit for leave. When a change in images is detected in the photographed information obtained from the wide angle camera 5 after a predetermined time has passed from the receiving of the operation signal, or when an audio information having a greater audio level than a normal level or a strange frequency range which is not expected in the absence of the elderly person, such as a crying audio, a sharp audio made by crashed glass are output from the shotgun microphone 7, the leave monitor 65 outputs the alarm signal to the center server 21 via the internet network 18. The monitoring operation by the wide angle camera 5 or the shotgun microphone 5 is performed after a predetermined time has passed from the receiving of the operation signal in order to prevent a situation where the resident himself is detected to cause the alarm signal output when the monitoring operation is performed right after the receiving of the operation signal. By this arrangement, it is possible to output an alarm signal in reliable manner and without a detection error.

[50] A reference numeral 66 indicates a time checking unit for checking safety of the resident by comparing the present time and the output time of the audio message input by the resident and outputting the check result to the center server 21 as a call destination via the internet network 18. For example, when a character is displayed on the LCD 3 and when an audio message, such as "Hello. How are you? Please press OK button." is output from the speaker 9 at the time set in advance in the memory 48 (for example, every 8:00 AM), the time checking unit 66 prompts the resident to responds to the audio message output from the speaker 9 by inputting an operation signal to a operation unit for safety check provided on the touch panel 52. When the operation signal has not output from the operation even after a predetermined time has passed, the time checking unit 66 informs the center server 21 via the internet network 18 that the safety of the resident is not known.

[51] A reference numeral 67 indicates an email transmitter for sending a predefined message (for example, "It's OK," "have a personal matter. Please come to my place." "please call me," and the like) to a call destination such as family, relatives, friends, etc. enlisted in advance in the center server. The predefined message is designated by the resident to be transmitted by pressing a button corresponding to the designated message. The email transmitter 67 may also be used for making an order such as meals or articles.

[52] A reference numeral 68 indicates a vital sign transmitting unit for sending health information regarding the resident (the elderly person) to the center server 21. The health information is input through the touch panel 52 and includes the state of the elderly person's health and particularly various vital signs such as blood pressure. The center server 21 collects the health information transmitted from each of the rescue notification devices 1 and monitors the progress of the respective health state of the elderly persons. The vital sign transmitting unit 68 has registered user name and password, each of which are associated therewith so that a helper can visit the elderly person's place to input the health information of the elderly person. Only when a user name and a password input through the touch panel 52 coincide with the registered user name and password, it is possible to input the health information to the vital sign transmitting unit 68. By this arrangement, it is possible to prevent the elderly person from inputting his health information inadvertently.

[53] The operation according to the above arrangement will be described below. First, the operation of each function for preventing a household accident of the elderly person will be described with reference to the flowchart as shown in FIG. 6. The rescue notification device 1 is connected to the LAN 40 via the internet network 18 in the living room. A prescribed operation voltage is supplied to each unit of the rescue notification device 1 from a power source 11 to activate the control unit 12 when electrical cords (not shown) of the rescue notification device 1 is plugged in an AC socket. When a time zone when the elderly person is present in the living room within a day or a time zone when the living room is lighted or not by the elderly person is input as the behavior pattern of the elderly person by the use of the touch panel 52 in step Sl, the pattern monitoring unit 62 stores the behavior pattern to the pattern storing unit 61 in step S2. When the output time of the audio message from the time checking unit 66 is input through the touch panel 52 in step S3, the time checking unit 66 stores the output time in the data area of the memory 48 in step S4.

[54] After the initial setting is completed in the steps Sl to S4, the processing unit 41 of the rescue notification device 1 determines in step S5 whether a leave mode is set or not by the operation of a leave button 75 to be described later. When the leave mode is cancelled, each process in steps S6 to S9 is performed by activating the pattern monitoring unit 62, assuming that the elderly person is in the house. More specifically, the pattern monitoring unit 62 monitors the presence of human being and the illumination state in the room where the rescue notification device 1 is installed, with changing the photographing angle of the wide angle camera 5 every predetermined interval. When the monitored result is different from the behavior pattern stored in the pattern storing unit 61 in step S6, a notification signal is output to the center server in step S7. The pattern monitoring unit 62 also analyzes the audio information output from the shotgun microphone 7 to output a notification signal to the center server 21 when the received audio information has an audio level that is not expected in the behavior pattern stored in the pattern storing unit 61.

[55] The time checking unit 66 determines in step S8 whether the present time measured by a built-in timer coincides with the output time (for example, 8:00 AM) of the message stored in the memory 48. When it is determined that the present time coincides with the output time of the message, an audio message is output from the speaker 9 in step S9. FIG. 12 shows the contents which is displayed on the LCD in this situation. An OK button 77 for checking safety of the elderly person and a message display unit 78 for prompting the press of OK button 77 is displayed on the display area of the LCD 3. At the same time, the time checking unit 66 outputs an audio message through the speaker, such as "Hello. Please press OK button." The time checking unit 66 automatically outputs a notification signal to the center server 21 when the OK button 77 is not pressed after a predetermined time has passed. By this arrangement, it is possible to prevent a household accident of the elderly person by checking the safety of the elderly person everyday using the time checking unit 66 even when there is no abnormality found by the monitoring of the behavior pattern using the pattern monitoring unit 66.

[56] When the center server 21 receives the notification signal, the center server 21 obtains the photographed information from the wide angle camera 5 of the rescue n otification device 1 that transmitted the notification signal and displays the photographed information on the TV monitor 26. As a result, it is possible for the center server 21 to grasp the situation in the living room and take a necessary step. As an example, the center server 21 includes registrant information for associating the rescue notification device 1 of the monitoring object (the elderly person) with the call destination's terminal 31 in the places of the supervisor or the helper stored in a memory (not shown) and connects the rescue notification device 1 of the monitoring object who transmitted the notification signal to a specific terminal 31 of the call destination based on the registrant information.

[57] The registrant information includes an email address of the call destination and it is possible for the center server 21 to transmit an email informing the designated family that there was an email from the elderly person in response to receiving the notification signal.

[58] When it is determined that the leave is set in the step S5, in place of the pattern monitoring unit 65, the leave monitor 65 is activated after a predetermined time has passed and starts to monitor an illegal intrusion by using the wide angle camera 5 or the shotgun microphone 7. When a change in images is detected in the photographed information obtained from the wide angle camera 5 or an audio information having a greater audio level than a normal level or a strange frequency range which is not expected in the absence of the elderly person are output from the shotgun microphone 7 in step SI l, the leave monitor 65 outputs in step S 12 a confirmation signal through the speaker 9 and an alarm signal informing that an illegal intrusion has occurred to the center server 21 via the internet network 18. The center server 21 grasps the situation in the living room by remotely controlling the wide-angel camera 5 of the rescue notification device 1 and take a necessary step. When the leave mode is set, it is constructed in such a manner that the safety check by the time checking unit 66 is not performed since the monitoring object is absent.

[59] In a series of process illustrated in FIG. 6, the center server 21 or the call destination's terminal 31 is free to connect to the rescue notification device 1 in the place of the elderly person, grasp the situation thereof and make a voice or video conversation with the elderly person. By the control of an Internet Protocol telephone (IP phone) or a mobile phone, for example, it is possible to directly control the photographing direction of the wide angle camera 5 of the rescue notification device 1. FIG. 13 shows an LCD displayed when a telephone call using a videophone is being made. A reference numeral 81 indicates a display area for displaying images obtained from the wide angle camera 5 of the rescue notification device 1 ; a reference numeral 82 indicates a display area for displaying images obtained from the wide angle camera 35 of the call destination's terminal 31; and a reference numeral 83 indicates a cancel button for interrupting the phone call when the conversation is desired to be stopped.

[60] FIG. 7 shows an exemplary aspect of a top menu displayed in the LCD 3. By pressing the touch panel 52 on the LCD 3, it is possible to call various functions of the processing unit 41. In FIG. 7, a DIAL button 71, an rescue DIAL button 72, a MESSAGE button 73, an ORDER button 74, a LEAVE button 75, and a VITAL SIGN button 76 are disposed in connection with the display function of the LCD 3. When the DIAL button 71 for a dial operation is pressed, the dialer 63 of the processing unit 41 is activated so that a message such as "DIALING IS IN PROGRESS," as illustrated in FIG. 8 is displayed on the LCD 3. At the same time, the dialer 63 outputs a voice message such as "Dialing is in progress. Please wait a moment"through the speaker 9. A reference numeral 79 indicates a CANCEL button displayed on the display screen for interrupting the dial operation to the center server 21 by pressing the cancel button 79.

[61] When the dialing to the center server 21 is completed, the center server 21 designates the call destination's terminal 31 in the places of the supervisor or the helper who is responsible for the elderly person who dialed based on the registrant information stored in advance and establishes the communication between the call destination's terminal 31 and the rescue notification device 1. As a result, a video conversation is made possible between the call destination's terminal 31 and the rescue notification device 1. FIG. 13 shows an example of the display screen of the LCD 3 when a conversation is in progress.

[62] FIG. 9 shows a display screen of the LCD 3 displayed when the message button 73 is pressed. In FIG. 9, a personal matter button 85, a message button 86, an urgent matter button 87, an order button 88, and an others button 89 are provided as a selection unit for selecting his desire and a cancel button 90 is provided as an interruption unit for canceling the selection of his desire. In addition to displaying the above buttons, the email transmitter 67 outputs an audio message such as "Please press a desired button." through the speaker 9. When the elderly person request dialing by pressing the message button 73, his desire is transmitted to the center server 21 via the internet network 18 and asked on the LCD 3 of the rescue notification device 1. As a result, the elderly person can easily transmit his desire to the center server 21 only by pressing one of the desire selection unit.

[63] FIG. 10 shows a display screen of the LCD 3 displayed when the personal matter button 85 is pressed. In FIG. 10, a family button 91, a friend button 92, and a relative button 93 is provided as a selection unit for selecting a call destination and a cancel button 90 is provided as an interruption unit for canceling the selection of call destination. In addition to displaying the above buttons, the email transmitter 67 outputs an audio message such as "Please press a desired call destination." through the speaker 9. When the elderly person specifies the one to whom he has a personal matter by pressing the personal matter button 85, his desire is transmitted to the center server 21 via the internet network 18 and asked on the LCD 3 of the rescue notification device 1. As a result, the elderly person can easily transmit his desired call destination to the center server 21 only by pressing one of the desired call destination selection buttons.

[64] FIG. 11 shows a display screen of the LCD 3 displayed when the family button 91 is pressed. In FIG. 11, four buttons 95 to 98 are provided as a personal matter selection unit for specifying the personal matter he has to the family. The first button 91 says "Please give me a phone call," the second button 92 says "Please visit right now, "the third button 93 says "Please visit today," and the fourth button 94 says "Please visit tomorrow." In addition to displaying the above buttons, the email transmitter 67 outputs an audio message such as "Please press a desired message." through the speaker 9. When the elderly person specifies the personal matter he has to the family by pressing the family button 91, his personal matter is transmitted to the center server 21 via the internet network 18 and asked on the LCD 3 of the rescue notification device 1. As a result, the elderly person can easily transmit his personal matter to the center server 21 only by pressing one of the desired call destination selection buttons. The content of personal matter to the call destination is registered in advance in the center server 21 and is displayed on the LCD 3 whenever the corresponding button is pressed in the rescue notification device 1. The same function can be realized in the rescue notification device 1 by registering the above content in the rescue notification device 1.

[65] For example, when the first button 95 is pressed, an email saying "Please give me a phone call" is automatically transmitted to an email address of the family by the email transmitter 67 through the center server 21. The same content can be directly transmitted via telephone line rather than via email.

[66] When the rescue dial button 72 is pressed in the top menu screen as illustrated in

FIG. 7, an rescue dial signal is output from the rescue dialer 64 to the center server 21. Similarly, the rescue dial signal is output by pressing the rescue button 16 provided on the pendant 15 worn on the elderly person. In this case, the center server 21 preferentially connect to the rescue notification device 1 that transmitted the rescue dial signal even when there are another dial signals from a plurality of rescue notification devices 1 and obtains the photographed information from the wide angle camera 5 and the audio information form the shotgun microphone. In addition, since an urgent contact number or medical record of the calling party from registrant information stored in a database of the center server 21 are displayed on the TV monitor 26 of the center server 21 in relation to the calling party (the elderly person) of the rescue dial signal, it is possible to cope with the rescue situation by dialing the urgent contact number, for example.

[67] The rescue notification device 1 according to the present embodiment is constructed by including a wide angle camera 5 as a photographing unit photographing a space (for example, the living room) where a resident (an elderly person) enters and exits; a pattern storing unit 61 as a memory storing a time zone when the resident is present in the space and a time zone when the space is lighted or not as a behavior pattern of the resident; and a pattern monitoring unit 62 as a monitoring and analyzing unit analyzing the photographed information obtained from the wide angle camera 5 and outputting a notification signal to a call destination via an internet network 18 or a LAN 40 as a communication unit when the analysis result differs from the behavior pattern stored in the pattern storing unit 61.

[68] In this case, as an example of the space which a resident enters and leaves, the wide angle camera 5 takes pictures of the living room where an elderly person spends time in normal times. The pattern storing unit 61 stores a time zone when the elderly person is present in the living room and a time zone when the living room is lighted or not according to turning a night-time illuminator on and off. In a case where the presence of the elderly person is not identified on the basis of the photographed information obtained from the wide angle camera 5 even in the time zone when the elderly person is supposed to be present in the living room, or where the illuminator is not turned on in the photographed information even in the time zone when the night-time illuminator is supposed to be turned on, it is determined that an accident such as an occasion where the elderly person is not able to move at all has happened to the elderly person and a notification signal is automatically output to a call destination. As a result, it is possible to automatically notify the call destination of the occurrence of the rescue when the resident leaves out of his normal behavior pattern by only directing the wide angle camera 5 toward the space which a resident enters and leaves and prevent a household accident of the resident.

[69] The rescue notification device according to the present embodiment may further comprise a leave button 75 as an operation unit operating when the resident is absent; and a leave monitor 65 as an alarm output unit interrupting the pattern monitoring unit 62 in response to an operation signal from the operation unit and outputting an alarm signal to the call destination via the internet network 18 or the LAN 40 when movement is sensed by the wide angle camera 5.

[70] When the elderly person moves away from the living room for the purpose of a visit, the leave button 75 is pressed in order to inform the absence of the elderly person. Since the pattern monitoring unit 62 stops to operate when the leave button 75 is pressed, it is possible to prevent unnecessarily transmitting the notification signal in the absence of the elderly person. In addition, the leave monitor 65 outputs an alarm signal to a call destination when a strange movement is captured by the wide angle camera 5 in the absence of the elderly person. By this arrangement, the rescue notification device according to the present embodiment can be used for a household accident surveillance function and a crime preventing function.

[71] Hereinafter, an rescue notification device according to a modified embodiment of the present invention will be described. The same elements as the elements of the embodiment described with a reference to FIGS. 1 to 13 are indicated by the same reference numerals. The descriptions on the overlapping parts are omitted in order to avoid a redundant description.

[72] FIG. 4 shows a functional structure of an rescue notification device according to the modified embodiment. The structure of the rescue notification device according to the modified embodiment is same as that of the above mentioned embodiment, except for the functional structure of the processing unit 41. Therefore, descriptions on the structure of other elements will be omitted in FIG. 14, except the processing unit 41. The processing unit 41 is a substitute for the pattern storing unit 61 or the pattern monitoring unit 62 of the above mentioned embodiment and includes a frequency calculating unit 102, a frequency storing unit 103, an average value calculating unit 104, a weight storing unit 105, and a monitoring and analyzing unit 106. In addition, the processing unit 41 in FIG. 15 includes other elements such as the dialer 63, the rescue dialer 64, the leave monitor 65, the time checking unit 66, the email transmitter 67, and the vital sign transmitting unit 68 as included in the above mentioned embodiment.

[73] The frequency calculating unit 102 calculates a frequency for every time zone by counting the number of changes when changes more than predetermined level appear in the audio information obtained from the shotgun microphone 7 or the photographed information obtained from the wide angle camera 5. More specifically, the frequency calculating unit 102 calculates a frequency for every time zone by counting the number of changes within time zones for example from 6:00 AM to 7:00 PM or from 5:00 PM to 6:00 PM when changes more than predetermined level appear in the audio information obtained from the shotgun microphone 7 or the photographed information obtained from the wide angle camera 5. The calculated frequency data in the latest time zone is output to the frequency storing unit 103 and the monitoring and analyzing unit 106.

[74] The frequency storing unit 103 stores the frequency value for every time zone for a predetermined period of time as a behavior pattern of the resident. The predetermined period of time may is set to about ten days where no substantial changes are supposed to occur in the behavior pattern. When the predetermined period is set too short, there can be occasions where an irregular behavior pattern different from a normal behavior pattern is determined as a reference value. On the other hand, when the predetermined period is set too long, the same behavior pattern is determined as the reference value even though the on and off time of the illuminator changes with the season for example and it does not keep track of the latest information. Therefore, it is important to set the predetermined period of time to about 7 to 14 days.

[75] The average value calculating unit 104 calculates an average value of the frequency in a time zone for the predetermined period of time read from the frequency storing unit 103 and outputs the average value to the monitoring and analyzing unit 106.

[76] The weight storing unit 105 is provided corresponding to the data area of the memory 48 of the above mentioned embodiment together with the frequency storing unit 103. The weight storing unit 105 stores a weight value to each time zone according to the significance of the monitored object. A greater weight value is assigned to a time zone having a greater significance. The weight value may be suitably changed depending on the monitored object or the season.

[77] The monitoring and analyzing unit 106 determines whether or not a notification signal is to be transmitted to a call destination based on the frequency in a time zone calculated by the frequency calculating unit 102, the average value in the same time zone obtained from the average value calculating unit 104, and the weight value in the same time zone read from the weight storing unit 105. Specifically, the monitoring and analyzing unit 106 has a function of outputting a notification signal to the center server 21 via the internet network 18 when a real frequency value in a time zone measured by the frequency calculating unit 102 deviates from the allowable range including the average value in the same time zone and the weight values in the same time zone stored in the weight storing unit 105 are accumulated to reach a predetermined boundary value. The accumulated value is automatically reset to zero (0) at the time of outputting the notification signal at a preset time (for example, 2:00 PM).

[78] The operation according to the modified embodiment will be described below with reference to a graph in FIG. 15. The horizontal axis represents a time and the vertical axis represents frequencies for each time zone. In the graph, there is depicted an average value XO for the period from 6:00 AM to 2:00 PM (14:00), upper and lower limit values Xl and X2 of the allowable range having its average value at XO, and a newer frequency Y (i.e., a real frequency value) calculated in every time zone by the frequency calculating unit 102.

[79] When the rescue notification device 1 is activated, the frequency calculating unit

102 determines whether or not changes more than a predetermined amount are detected in the photographed image data or the audio data of the living room, based on the photographed information obtained from the wide angle camera 5 or the audio information obtained from the shotgun microphone 7. The built-in counter increases the count value by one when changes more than a predetermined amount are found in the audio data or the photographed image data resulting from the light on and off of the illuminator or the movement of the elderly person. The counter value is output as a frequency value to the frequency storing unit 103 and the monitoring and analyzing unit 106 after a predetermined period of time (for example, one hour) has passed. At this time, the frequency calculating unit 102 resets the counter value to zero (0) in order to calculate the frequency of next time zone. The frequency values thus calculated for every time zone is displayed in FIG. 15 as the real frequency value Y.

[80] Whenever a frequency value for every time zone is calculated by the frequency calculating unit 102, the calculated frequency values are stored in the frequency storing unit 103. In the modified embodiment, each frequency value in every time zone are collected for a predetermined period of time (for example 10 days) and stored in the frequency storing unit 103. When a newer frequency value for a time zone is calculated by the frequency calculating unit 102, the oldest frequency value in the same time zone (i.e., the frequency value before 10 days) is removed from the frequency storing unit 103 and the newer frequency value is stored in the frequency storing unit 103. By this arrangement, the frequency value for a predetermined period of time as the behavior pattern of the resident can keep track of the latest information.

[81] After updating the frequency value of a time zone, the average value calculating unit 104 calculates an average frequency value in the time zone for a predetermined period of time and outputs the calculated average frequency value to the monitoring and analyzing unit 106 (the average value XO in FIG. 15). Receiving the average frequency value, the monitoring and analyzing unit 106 determines whether or not the frequency value in the same time zone obtained from the frequency calculating unit 102 deviates from an allowable range (the range between the upper limit Xl and the lower limit X2 in FIG. 15) including the average frequency value in the same time zone. The width of the allowable range can be suitably changed depending on the magnitude of the average value or time.

[82] When the frequency value in the same time zone belongs to the allowable range at the same time zone, the accumulation of weight values is not performed. Otherwise, the weight values corresponding to the time zone are read from the weight storing unit 105 and are added to the previous accumulated value. Whenever the frequency calculating unit 102 calculates a frequency value in a new time zone, the monitoring and analyzing unit 106 performs above mentioned determination process. When the accumulated weight value reaches a preset boundary value, the monitoring and analyzing unit 106 output a notification signal to the center server 21, thereby issuing an alarm that informs an rescue.

[83] To describe series of process more detail with reference to FIG. 15, a greater weight value is assigned to a time zone having a greater monitoring significance. In this embodiment, a greatest weight value of 7 is assigned to time zones, from 7:00 AM to 8:00 AM and from 8:00 AM to 9:00 AM, where the resident is more likely to be active for daily life and when no changes are found in the photographed image data and the audio data, the likelihood of rescue occurrence is supposed to be great. In time zones, from 5:00 AM to 6:00 AM, from 6:00 AM to 7:00 AM, and from 9:00 AM to 10:00 AM, where the resident is more likely to be active for daily life, a weight value of 5 corresponding to the ratio of activity is assigned to those time zones. Weight values (3 or 1) corresponding to the ratio of activity is similarly assigned to the time zones, from 10:00 AM to 11:00 AM, from 11:00 AM to 12:00 AM (noon), and from 12:00 AM to 1:00 PM (13:00). On the other hand, a weight value of zero (0) is assigned to a time zone from 1:00 PM to 2:00 PM where the resident is more likely to leave the house and it is more likely that no changes are found in the photographed image data and the audio data. The time zone from 1:00 PM to 2:00 PM is excluded from the monitoring object.

[84] The average value which is an indicator for an average behavior pattern of the resident are calculated based on the actual data of changes in the living room obtained on the basis of the photographed information for 10 days. By this arrangement, it is possible to optimize average value for reference in correspondence with the behavior pattern of the resident. Moreover, since the frequency values in each time zone for only 10 days which is necessary for calculating the average value are stored in the frequency storing unit 103, it does not needlessly increase the capacity of memory and is possible to set an optimum average value with respect to gradually changing behavior pattern due to seasonal factors.

[85] In FIG. 15, time zones, from 5:00 AM to 6:00 AM and from 6:00 AM to 7:00 AM, the frequency values obtained from the frequency calculating unit 102 belongs to an allowable range. In this case, it is determined that the resident lives a normal behavior pattern and the accumulating of weight value is not performed.

[86] Meanwhile, the frequency values in time zones from 7:00 AM to 8:00 AM and thereafter deviate from the allowable range including the average value in the same time zone and there is little change in the photographed image data after the time zone from 9:00 AM to 10:00 AM. In this case, the monitoring and analyzing unit 106 determines that this can be signs of rescue. Then, the monitoring and analyzing unit 106 issues an alarm informing the occurrence of rescue when the weight values accumulated for each time zone reaches a predetermined alarm score (a boundary value) at the time of expiration of the time zone from 10:00 AM to 11:00 AM.

[87] The rescue notification device 1 according to the modified embodiment is constructed by including a wide angle camera 5 as a photographing unit; a frequency calculating unit 102 calculating the degree of change in the space as a frequency in a time zone on the basis of the photographed information obtained from the wide angle camera 5; a frequency storing unit 103 storing the frequency in a time zone for a predetermined period of time as a behavior pattern of the resident; an average value calculating unit 104 calculating an average value of the frequency in a time zone for the predetermined period of time read from the frequency storing unit 103; an weight storing unit 105 storing a weight value assigned to each time zone, wherein a greater weight value is assigned to a time zone having a greater monitoring significance; and a monitoring and analyzing unit 106 outputting a notification signal to a call destination via an internet network 18 or a LAN 40, wherein when a frequency in a time zone obtained from the frequency calculating unit 102 deviates from the allowable range including the average value of the frequency in the same time zone obtained from the average value calculating unit 104, the monitoring and analyzing unit accumulates the weight value assigned to the same time zone read from the weight storing unit 105 and outputs the notification signal to the call destination when the accumulated weight value reaches a predetermined boundary value.

[88] In this case, it is possible to automatically notify the call destination of the occurrence of the rescue when the resident leaves out of his normal behavior pattern by only directing the wide angle camera 5 toward the space which a resident enters and leaves and prevent a household accident of the resident.

[89] In addition, according to the modified embodiment, the weight values in the time zone are accumulated when a sign of rescue is found in each time zone. Further, the notification signal is output when it is determined that an rescue is actually occurred only when the accumulated weight values reach a predetermined alarm score. Therefore, the notification signal is not output when a sign of rescue appears in a time zone due to a short term leave, for example. Thus, it is possible to reduce the chance of outputting an erroneous notification signal. Moreover, since a greater weight value is assigned to a time zone having a greater monitoring significance, it is possible to detect an rescue in an early stage by the reduced time for determining the rescue in the time zone. On the other hand, since a lower weight value is assigned to a time zone having a less significance, it is possible to reduce the chance of outputting an erroneous notification signal by the increased time for determining the rescue in the time zone.

[90] The rescue notification device according to the modified embodiment may further comprise a shotgun microphone 7 as an audio input unit receiving audio information in the space so that the frequency calculating unit 102 calculates the degree of change in the space as the frequency in a time zone on the basis of the photographed information obtained from the wide angle camera 5 and the audio information obtained from the shotgun microphone 7. By this arrangement, it is possible to precisely determine the occurrence of an rescue on the basis of the photographed information and the audio information in the space.

[91] According to the rescue notification device in the modified embodiment, when a new frequency in a time zone is calculated, the frequency calculating unit 102 removes the oldest frequency in a predetermined period of time from the frequency storing unit 103 and stores the new frequency in the frequency storing unit.

[92] By this arrangement, it is possible for the frequency value for a predetermined period of time as the behavior pattern of the resident to keep track of the latest information in consideration of the seasonal factors.

[93] Other operations are same as those in the above mentioned embodiment.

[94] For example, In case of a diabetic patient, a behavior pattern, such as a rising time, a medication time, and an exercise time of the patient is stored in advance in a pattern storing unit and an output time of an audio message or an alarm signal is stored in a data area of a memory. Then, the time checking unit compares the present time and the output time of the audio message or the alarm signal and outputs an audio message such as "It's time to get up," It's time to take a medicine," It's hh:mm now. From now on, let's start walking exercise for 20 minutes." or an alarm signal through a speaker when the output time of the audio message coincide with the output time of the alarm signal. By outputting a predefined alarm signal (for example, one ringing of the alarm for a medication, two ringing of the alarm for an exercise, etc.), it is possible for the patient to differentiate the alarm signal.

[95] The center server can recognize that the patient is in his normal behavior pattern when the patient press a button or dial a telephone after finishing the work corresponding to the alarm signal or an audio message.

[96] In the present invention, the content displayed on the LCD 3 is not limited to those contents illustrated in relation to FIG. 7 to FIG. 13. In addition, a plurality of press button switches may realize the same function as expected by the touch panel 52. Moreover, the frequency calculating unit 102 may be able to calculate a frequency on the basis of either the photographed information or the audio information and determine the occurrence of an rescue on the basis of the photographed information and the audio information independently of each other.

[97] Therefore, the exemplary embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the invention is defined not by the detailed description of the invention but by the appended claims, and all differences within the scope will be construed as being included in the present invention. Industrial Applicability

[98] The rescue notification device according to the present invention is easy to install and is capable of notifying a call destination of the occurrence of an rescue in a reliable manner by only directing the photographing unit toward the space which a resident enters and leaves and prevent a household accident of the resident.

[99] In addition, the rescue notification device according to the present invention is easy to install and is capable of notifying a call destination of the occurrence of an rescue in a reliable manner by only directing the photographing unit toward the space which a resident enters and leaves and prevent a household accident of the resident and thereby reducing the chance of outputting an erroneous notification signal.

[100] In addition, the rescue notification device according to the present invention is capable of precisely determining the occurrence of an rescue on the basis of the photographed information and the audio information in the space.

[101] In addition, the rescue notification device according to the present invention is capable of maintain the frequency value for a predetermined period of time as the behavior pattern of the resident to keep track of the latest information.

[102] In addition, according to the rescue notification device of the present invention, it is possible to prevent unnecessarily transmitting a notification signal in the absence of resident and output an alarm signal to a call destination by an alarm output unit when a strange movement is captured in a space.

[103] As a result, according to the rescue notification device of the present invention, it is possible to prevent a household accident of an elderly person living alone or a weak person and provide a surveillance function.

[104] While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.

[105]

[106]

Claims

[1] An rescue notification device comprising: a photographing unit photographing a space which a resident enters and leaves; a memory storing a time zone when the resident is present in the space and a time zone when the space is lighted or not as a behavior pattern of the resident; and a monitoring and analyzing unit analyzing information obtained from the photographing unit and outputting a notification signal to a call destination via a communication unit when the analysis result differs from the behavior pattern stored in the memory.

[2] An rescue notification device comprising: a photographing unit photographing a space which a resident enters and leaves; a frequency calculating unit calculating the degree of change in the space as a frequency in a time zone on the basis of the photographed information obtained from the photographing unit; a frequency storing unit storing the frequency in the time zone for a predetermined period of time as a behavior pattern of the resident; an average value calculating unit calculating an average value of the frequency, which is read from the frequency storing unit, in the time zone for the predetermined period of time; a weight storing unit storing a weight value assigned to each time zone, in which a greater weight value is assigned to a time zone having a greater monitoring significance; and a monitoring and analyzing unit outputting a notification signal to a call destination via a communication unit, in which when a frequency in a time zone obtained from the frequency calculating unit deviates from an allowable range including the average value of the frequency in the same time zone obtained from the average value calculating unit whenever the frequency calculating unit calculates a frequency in a time zone, the monitoring and analyzing unit accumulates the weight value assigned to the same time zone read from the weight storing unit and outputs the notification signal to the call destination when the accumulated weight value reaches a predetermined boundary value.

[3] The rescue notification device of claim 2, further comprising an audio input unit receiving audio information in the space, wherein the frequency calculating unit calculates the degree of change in the space as the frequency in a time zone on the basis of the photographed information and the audio information.

[4] The rescue notification device of claim 2 or 3, wherein whenever a new frequency in a time zone is calculated, the frequency calculating unit removes the oldest frequency in a predetermined period of time from the frequency storing unit and stores the new frequency in the frequency storing unit.

[5] The rescue notification device of claim 2 or 3, further comprising an operation unit operating when the resident is absent; and an alarm output unit interrupting the monitoring and analyzing unit in response to an operation signal from the operation unit and outputting an alarm signal to the call destination via the communication unit when movement is sensed from the photographed information.

[6] The rescue notification device of claim 4, further comprising an operation unit operating when the resident is absent; and an alarm output unit interrupting the monitoring and analyzing unit in response to an operation signal from the operation unit and outputting an alarm signal to the call destination via the communication unit when movement is sensed from the photographed information.