JP2003006755A - Human body detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a human body detector which starts displaying a moving image except for the real image of a human body when detecting the movement of a person with a sensor. SOLUTION: When the movement of the human body is detected until an alarm is generated, the moving image is displayed to give a sense of ease to a family watching the picture. A bathing person can take a bath with a sense of ease since he/she learns that the sensor operates reliably since the moving image is displayed when he/she moves. Since a timer counts time after the determination of stoppage, no problem is caused to alarming later.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body detecting apparatus which monitors a bathroom or the like and issues an alarm to another person at a remote place when an abnormality occurs in the movement of the human body.

[0002]

2. Description of the Related Art Conventionally, in this kind of human body detecting device,
Continuously monitor the inside of the bathroom, and if there is no movement of people in the bathroom, wait for a certain period of time and send a signal from the sensor to the notification part of the bathroom and the notification part provided at a remote location such as a kitchen. In the sending and alerting department, a warning was given by a buzzer. The reason for waiting for the elapse of this fixed time is that the bather may start moving again after a while after standing still in the bathtub.Therefore, give a grace period to reduce the number of alarms. It is what

[0003]

However, the above-mentioned monitoring device has a drawback in that it is not possible to know the progress of the alarm only by the alarm by the buzzer after the elapse of a certain time. In order to solve this, the bather's motion image captured by the sensor may be continuously displayed on the notification unit, but there is a privacy problem in the display by the human body image.

Therefore, in view of the above problems, the present invention provides a human body detection device which, when a movement of a person is detected by a sensor, starts displaying as a moving image other than a real image of the human body. It is an issue.

[0005]

In order to solve the above-mentioned problems, a human body detecting apparatus of the present invention comprises a human body detecting sensor for monitoring a bathroom and the like, and a judging means for judging the movement of the human body by the human body detecting sensor. A timer that starts counting when the determination unit determines that the human body has stopped, an informing unit that issues an alarm after a predetermined time has elapsed by the timer, and a motion image display unit that detects a motion of the human body and displays a moving image. The first feature is to provide. According to the first feature, if the movement of the human body is detected before the alarm is issued, a moving image is displayed, and the family who sees the image can feel a sense of security. In addition, since the moving image is displayed to the bather when the user is moving, it is possible to know that the sensor is operating reliably and can take a bath with peace of mind. On the other hand, since the timer counts after the stop determination, there is no problem with the alarm notification at a later time. Here, the moving image does not mean an actual captured image of the human body but a pseudo image indicating that the human body is moving, for example, an image such as an animation.

Further, the human body detecting apparatus of the present invention includes a human body detecting sensor for monitoring a bathroom and the like, a judging means for judging the stop of the movement of the human body by the human body detecting sensor, and counting when the judging means judges the human body is stopped. And a timer to start
An informing means for issuing an alarm after a lapse of a predetermined time by the timer, a motion image display means for detecting a motion of a human body and displaying a moving image, and a stopping of the moving image when the determination means determines that the human body is stopped The second feature is that a stop image display means for displaying the same is provided. According to this second feature, in addition to the above features, when the bather's movement stops, the moving image that has been moving until then stops that movement and becomes a stop image, so It is possible to grasp the movement of the bathroom even before the alarm sounds. In addition, the bather can be aware of this and start moving, and the false alarm can be eliminated. Also,
The human body detection device of the present invention is a human body detection sensor that monitors a bathroom or the like, an imaging device that images a monitoring area at predetermined time intervals, and a movement amount of the human body is compared by comparing both images before and after the predetermined time interval to determine the amount of received light. A motion amount calculating means for calculating as a difference,
A motion presence / absence determining means for determining the presence / absence of motion by the motion amount computing means, a determining means for determining the movement of a human body by the motion presence / absence determining means, and a timer for starting counting when the human body is determined to be stopped by the determining means, An informing means for issuing an alarm after a lapse of a predetermined time by the timer, a motion image display means for detecting a motion of a human body and displaying a moving image, and a stopping of the moving image when the determination means determines that the human body is stopped The third feature is that a stop image display means for displaying the stop image display means and a release means for canceling the display by the stop image display means by detecting the movement of the human body by the determination means are provided. According to the third feature, in addition to the above feature, the display of the stopped image is canceled when the movement starts after the stop, and the moving image is displayed again, so that the family member can feel secure. Also, the bather can know that the sensor detects the movement again and is operating properly. Further, the human body detection device of the present invention, the human body detection sensor for monitoring the bathroom, the determination means for determining the stop of the movement of the human body by the human body detection sensor, and starts counting when the determination of the human body is stopped by the determination means. A timer, an informing means for issuing an alarm after a lapse of a predetermined time by the timer, a motion image display means for detecting a motion of a human body and displaying a moving image, and a motion indicating the motion of the human body when the determination means determines that the human body is stopped. A fourth feature is that a stop image display unit for stopping and displaying an image and a switching unit for canceling the display by the stop image display unit and switching to a moving image are provided. According to the fourth feature, when the movement starts after the stop, the display of the stop image is switched to the movement image, and the moving image is displayed again, so that the family member can feel a sense of security, and The bather can detect that the sensor again detects movement and is working properly. Further, the human body detection device according to any one of claims 1 to 3 of the present invention is characterized by comparing the amount of light received by comparing an image capturing device that captures an image of a monitoring region at predetermined time intervals and a motion amount of a human body before and after the predetermined time interval. A motion amount calculating means for calculating as a difference, and a motion presence / absence determining means for determining presence / absence of motion by the motion amount calculating means,
A fifth feature is that a determination means for determining the movement of the human body is provided by the movement presence / absence determination means. According to the fifth feature, it is possible to detect the movement of the human body quickly and surely by calculating the movement amount and determining the presence or absence of the movement, and it is possible to ensure the later warning and the image display. be able to. Further, the human body detection device according to any one of claims 1 to 4 of the present invention is an image pickup device for picking up an image of a monitoring region at predetermined time intervals, and an area dividing means for dividing a detection region into an entrance region and a region other than the entrance region. , A motion amount calculating means for calculating a motion amount of the human body as a difference in light receiving amount by comparing both images before and after the predetermined time interval, and detecting whether or not there is a motion in each of the divided areas by the area dividing means Motion presence / absence area detection means, motion presence / absence determination means for determining presence / absence of motion by the motion amount calculation means, and determination as to whether the area detected by the motion presence / absence area detection means corresponds to a previously specified area A sixth feature is that a specific area corresponding determination means for performing the above-described operation, and a determination means for determining whether the movement of the human body is stopped by the motion presence / absence determination means and the specific area corresponding determination means are provided. According to the sixth feature, it is possible to detect in which region the movement of the human body has stopped, the reliability of stop detection can be improved, and the stop image can be displayed quickly.

The human body detecting apparatus according to any one of claims 1 to 4 of the present invention is an image pickup apparatus for picking up an image of a monitoring area at predetermined time intervals, and an area for dividing a detection area into an entrance area and an area other than the entrance area. The dividing means, the movement amount calculating means for calculating the movement amount of the human body as a difference in the amount of received light by comparing both images before and after the predetermined time interval, and whether or not there is a movement in each of the divided areas by the area dividing means. A motion presence / absence area detecting means for detecting a motion presence / absence, a motion presence / absence determining means for determining presence / absence of motion by the motion amount calculating means, and whether or not the area detected by the motion presence / absence area detecting means corresponds to a predetermined area. And a case where it is determined that the detection of the movement amount is a washroom or a bathtub area by the specific area corresponding determination unit that determines whether the movement is performed by the movement presence determination unit. The human body movement when it is determined is a seventh feature of in that a determination means as that stopped not. According to this seventh feature, it is possible to quickly detect that a person has stopped, especially in the area of the washroom or bathtub where many accidents occur, speed up the image display and alarm, and immediately contact the family. It can be carried out.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram showing an embodiment of the present invention. FIG. 2 is a block diagram of an electric circuit showing an embodiment of the present invention. FIG. 3 is a circuit diagram showing the configuration of an image core circuit that constitutes one pixel of the image detection unit of the human body detection sensor. FIG. 4 is an explanatory diagram showing the relationship between the imaging range of the sensor, the detection range, and the detection area. Figure 5
3 is a control flowchart showing an embodiment of the present invention. FIG. 6 is a flowchart of human body stoppage detection showing an embodiment of the present invention. FIG. 7 is an explanatory diagram of an embodiment showing the relationship between the human body detection sensor, the hot water equipment, and the remote controller.
FIG. 8 is a block diagram of electric control of another embodiment showing the relationship among the human body detection sensor, the hot water equipment, and the remote controller. FIG. 9 is an enlarged view of the storage unit showing an embodiment. (A) of FIG.
Is a diagram showing a current image and a previous image of an object moved to the lower right, (b) is a diagram showing the brightness of the previous image for each pixel, (c)
FIG. 4 is a diagram showing the brightness of the current image for each pixel. FIG. 11 is a diagram showing a difference image showing changes in brightness and darkness in pixels corresponding to image boundaries. FIG. 12 is an electric circuit block diagram showing one embodiment, and FIG. 13 is a flowchart of human body monitoring showing one embodiment. FIG. 14 is an electrical block diagram showing the relationship between the remote controller and the human body detection sensor. FIG. 15 is an electric circuit diagram showing the connection relationship between the remote controller, the hot water equipment, and the human body detection sensor according to another embodiment. FIG. 16 is an electrical block diagram showing the display relationship.

FIG. 1 shows an outline of an embodiment of the present invention, in which a bathtub 2 and a washroom 3 are provided inside a bathroom 1. Reference numeral 4 is an entrance to the bathroom 1. Reference numeral 5 denotes a human body sensor, which will be described in detail later, but is attached to the upper portion of the inner wall surface of the bathroom 1. Specifically, it is attached at an upper position of the bathroom wall surface facing the bathroom wall surface in contact with the longitudinal direction of the bathtub 2. To the hot water equipment 40, a bath remote control 60 installed in a bathroom and a kitchen remote control 70 installed in a kitchen for operating the hot water equipment 40 from a remote position are connected. Although the human body sensor 5 is attached to the wall surface of the bathroom 1 in the present embodiment, the human body sensor 5 is not limited to this example and may be attached to the ceiling surface of the bathroom 1. The human body sensor 5 has an imaging device using an artificial retina, and is composed of a human body detection sensor 51 that images the movement of the human body in the bathroom 1 and performs image processing, and an infrared sensor 52 that detects the human body by heat detection by infrared rays. is doing. The image pickup device picks up an image of a monitoring area such as a bathroom at predetermined time intervals.

A bath remote controller 60 for remotely controlling the hot water equipment 40 is installed in the bathroom 1, and a kitchen remote controller 70 for remotely controlling the hot water equipment 40 is installed in the kitchen. Here, the hot water device 40 is a device for heating hot water and supplying it to a bathtub or the like, and specifically includes a bath kettle with a water heater, a heater with a water heater, a hot water heater, a water heater, and the like. ing. The hot water equipment may not only use gas as a fuel but may also use oil as a fuel. Regarding the connection of the warm water equipment 40, the remote controllers 60 and 70, and the human body detection sensor 51, in the one shown in FIG. 1 showing one embodiment of the present invention,
First, the hot water equipment 40 and the kitchen remote controller 70 are connected to the cable 41.
Then, the kitchen remote controller 70 and the bath remote controller 60 are connected by the cable 41, and the bath remote controller 60 and the human body detection sensor 51 are connected by the cable 41. Then, the remote controller 6 for controlling the water heater, etc.
0 and 70 have a display unit such as a liquid crystal display panel for notifying that there is a bather in the bathroom 1. When the human body sensor 5 detects the bather and outputs a detection signal, the display unit lights up. And so on. The display unit is not limited to the one described above, and when the bather does not move for a certain period of time, it is presumed that he or she is sleeping in the bathtub or has fallen down. If no response is received within the specified time, the kitchen remote control 7
At 0, the alarm sound or voice is used to notify the alarm to others such as family members.

The hot water equipment 40 has a built-in heat exchanger and burner, and is provided with various sensors for control. A hot water supply drop pipe 46 is connected from the hot water equipment 40 to the bathtub 2. Further, the power source for operating the human body sensor 5 is introduced from the power plug 47 of the water heating device 40, and the controller 42 of the water heating device 40.
It is supplied after being stepped down and lowered in voltage through a transformer (not shown).

FIG. 2 shows a specific structure of the human body sensor 5 which is composed of a human body detection sensor 51 using an artificial retina chip and an infrared sensor 52. Human body detection sensor 51
Is an image pickup device 6 for picking up an image of the monitoring area at predetermined time intervals,
The control device 7 is composed of a microcomputer that controls the imaging device 6 and processes and determines a captured image. In addition, the controller 7 and the remote controller 6 described above.
0 and 70 are transmitted and received by a communication unit 53 such as a communication IC described later. Further, in addition to the human body detection sensor 51, an infrared sensor 52 is provided in the same case body, and the control device 7 thereof is shared so as to mutually complement the monitoring when the bathroom 1 is dark.

The image pickup unit 8 of the image pickup device 6 has a vertical length of 128 ×
It is composed of an image detection unit 9 having a resolution of 128 pixels horizontally, an imaging lens 10, a scanner 11, a multiplexer 12, and a scanner drive control unit 13. The image detection unit 9 may use vertical 32 pixels × horizontal 32 pixels, or may perform image detection processing with a part of a large number of pixels. The pixels of the image detection unit 9 have 256 levels of monochrome “level 0 (black) to 2”, respectively.
It is represented by 256 gradations of 55 (white).

Then, in the image pickup section 8, the image in the bathroom is formed on the image detection section 9 by the image forming lens 10. The scanner 11 is drive-controlled by the scanner drive control unit 13, and the scanner drive control unit 13 controls each pixel row of the image detection unit 9 so as to be sequentially in a light receiving state (ON state) at regular intervals. . The photocurrents simultaneously output from the pixels in one column in the light receiving state are combined into a single electric signal by the multiplexer 12 and amplified by the amplifier 14 before being output as an analog voltage. The converter of the control unit 7 is used to convert analog data into digital data.

Further, each pixel of the image detecting section 9 is composed of a pixel core circuit 17 as shown in FIG. The pixel core circuit 17 includes a light receiving element 18, a charge storage circuit 19, and a sensitivity variable circuit 20, and a sensitivity variable terminal 21.
The reset terminal 22 is connected to the scanner 11, and the photocurrent output terminal 23 is connected to the multiplexer 12.

In FIG. 2, the gain adjustment unit 16 checks the image average value (image brightness) in the image output unit 15, and if the image average value is out of the appropriate range, the amplifier 14 causes the image pickup device 6 to operate. In addition to adjusting the gain, the scanner drive control unit 13 adjusts the storage time of the image detection unit 9 to perform light control so that an image with appropriate brightness can be obtained. This dimming may be performed for each of the divided detection areas described later.

In the image pickup device 6 using the artificial retina, the image average value is the gradation (0 gradation (black) to 255 gradation (white) of 256 gradations) in all the pixels that constitute the image detecting section 9. It is an average value and is expressed by a value of 0 to 255. This image average value is determined by the gain of the amplifier 14 and the accumulation time of the image detector 9. Here, the gain corresponds to the aperture of the camera, and the accumulation time corresponds to the shutter speed of the camera. Therefore, in order to obtain an appropriate image average value of the image pickup device 6, it is only necessary to fix the gain to an appropriate value and adjust the accumulation time. Alternatively, an appropriate accumulation time may be fixed and the gain may be adjusted.

Then, in FIG. 2, at least an image detecting section 9 for performing image pickup, a scanner 11, and a scanner driving section 1
3 and the gain adjusting unit 16 are configured by one chip.
This chip is called an artificial retina chip. Further, a control device 7 is provided on the back surface of the chip, and the control device 7 is composed of a microcomputer incorporating various kinds of software.
The area dividing means 24 for dividing the detection area for performing the detection processing into a plurality of areas is incorporated as software.

Specifically, as shown in FIG. 4, the point table 25 for processing the image information input to the control device 7 is divided into a plurality of areas. That is, the imaging capability range (corresponding to the entire point table 25) that can be detected by the human body detection sensor 51 is defined as a detection area 26 that requires image processing and a non-detection area 27 that does not perform image processing.
It is divided into and. That is, the entire imaging capability range is not set as the detection area. As a result, a part of the detection processing area where detection processing can be performed is used as a sensor detection area for actually detecting and processing, thereby limiting the image processing range and accelerating the image processing speed. Further, as shown in FIG. 4, the detection area 26 is replaced with an entrance area 29 and a wash area 3
The area is divided into three areas of 0 and the bathtub area 31. The division of the detection area 26 is not limited to this example, and the detection area 26 may be divided into two areas, an entrance area 29 and an area other than the entrance area 29. For example, the washing area 30 and the bath area 31 may be combined into one area. In the case of a bathroom, the entrance area 29 is an area located inside the bathroom and near an entrance door to the bathroom. The washing area 30 mainly means an area of a floor portion where the head and body are washed, and the bath area 31 means an area where the bath is located. Image information is sequentially input to the control device 7 for each of the areas divided in this way, and processing such as detection and calculation is performed for each area.

The imaging lens 10, the image pickup device 6 and the control device 7 constituting the human body sensor 51 are housed together with the infrared sensor 52 in one case, and attached to a wall surface or the like as a human body sensor set. The mounting position may be such that the entire bathroom 1 including the entrance / exit 4 to the bathroom is included in the viewing angle.

Then, the detection output of the image pickup device 6 and the detection output of the infrared sensor 52 are input to the determination means 32, respectively. The determination unit 32 is configured to comprehensively determine the presence or absence of a bather in the bathroom, the movement of the bather, and the like based on the output from the image pickup device 6 and the output from the infrared sensor 52.

The image detected by the artificial retina is image-processed as follows. The control device 7 for controlling and processing the image,
The image information is received from all the pixels forming the image detection unit 9 at regular intervals, and when the image information is received at regular intervals, the image information is processed and the determination means 32 determines the movement of the bather. .

Next, an image processing method for extracting the movement of a person from the image captured by the artificial retina 21 will be described. Upon receiving the image information at predetermined time intervals, the control device 7 including a microcomputer analyzes the movement of the bather from the image information according to a predetermined analysis algorithm and monitors the movement of the bather.

Specifically, as shown in FIG. 10A, the image (bright image) P of a square object is changed from position P1 to position P2.
Suppose you moved to. At this time, if a bright pixel is represented by a symbol B and a dark pixel is represented by a symbol D, the previous image is represented by FIG. 10 (b) and the current image is represented by FIG. 10 (c). The images before and after this are temporarily stored by the image storage means 115 in FIG. The captured images are sequentially updated so that the latest two images are always stored. Then, the motion amount calculating means 111 compares the two images for each of the divided areas, and for each pixel (x, y) of each area, the previous image p
Received light amount Pp (x, y) of the current image n and received light amount Pn (x, y) of the current image n
The difference (motion amount) D (x, y) = Pn (x, y) -Pp (x, y) from y) is calculated, and the calculation result can be obtained as a difference image as shown in FIG. In the difference image of FIG. 11, a pixel having a positive difference D (x, y) is represented by a + symbol, a negative pixel is represented by a − symbol, and a pixel having a D (x, y) of zero is represented by a 0 symbol. There is. By capturing the sum of such differences,
Whether or not there is motion can be determined for each area, and this determination is performed by the motion presence / absence determining means 114. If there is no motion amount, it is determined that there is no motion, and if there is motion amount, it is determined that there is motion.

On the other hand, the motion presence / absence detection unit 112 detects whether or not there is a motion in each divided region. That is, the captured image captured by the imaging device 6 is read by the control device 7 at regular intervals of the entrance area 29, the wash area 30 and the bathtub area 31, and the image data is analyzed to show a moving area. Is detected. This detection may be performed, for example, by detecting the area where the above-described amount of movement has occurred as a moving area. Alternatively, the change in voltage caused by the movement of a person may be detected, and the changed area may be determined as the moving area and the detected area may be detected. Then, whether or not the area in which the motion is occurring corresponds to the area specified in advance is determined by the specific area corresponding determination means 113. The specific area means the bath area 31 or the wash area 30, and is an area excluding the entrance area 29. Whether or not the moving area is the specific area depends on, for example, whether or not the signals match, or by sequentially searching other detection areas and determining that if there is no movement in the area other than the specific area, it corresponds to the specific area. There is. In such a search, the state is sequentially transited based on the presence / absence of a motion and the signal of the region having the motion, and the search is performed in the microcomputer.

Further, the human body detection sensor 51 is provided with a sensitivity adjustment circuit (not shown) for automatically adjusting the sensitivity,
The detection accuracy is increased by increasing the sensitivity when the bathroom is dark and decreasing the sensitivity when the bathroom is bright.

Next, determination of whether or not a person has entered the bathroom 1 will be described. In FIG. 5, when a person starts to enter the bathroom 1, first, the infrared sensor 52 in the standby state detects the human body and is turned on (step S1), and a timer is set (step S2), and the human body detection sensor 51 stays for a certain period of time. When a person is detected inside the washing room (step S
3) It is determined that the person has entered the room (step S4). In this entry determination, it takes time for the human body detection sensor 51 to detect a human body, and it takes time to calculate the amount of movement, or when the bathroom 1 is dark, the monitoring sensitivity is low. After the detection by the sensor 52, the human body detection sensor 51 also detects a person, thereby compensating for the weak points of the human body detection sensor 51 and ensuring the entry of the room.

Further, even when the user exits the bathroom 1, if the infrared sensor 52 is turned off (No in step S5) and the human body detection sensor 51 does not detect the amount of movement (in step S6). If no), it is determined that the user has exited the bathroom 1 (step S7). If only the infrared sensor 52 is stopped at the entrance, it will be turned off, and it may be erroneously determined that the user has exited. This is complemented by the use of sensors.

Even if the human body detection sensor 51 does not detect a person in the washroom 3 (NO in step S3), it detects a person in the bathtub 2 (step S3).
8) If both the infrared sensor 52 and the human body detection sensor 51 detect a person within a predetermined time (step S
9, S10), it is determined that the user has entered the room (step S4). In addition, after it is determined that the user has entered the room, a timer may be set so that the detection duration of the sensor corresponds to the average bathing time.

The attachment of the human body detection sensor 51 is
The position is the ceiling or the upper part of the wall surface of the bathroom 1, and this position is the optimum position where the movement of a person in the bathroom having the washroom 3 and the bathtub 2 can be overlooked in a standard bathroom. Human body sensor 5
By housing the human body detection sensor 51 and the infrared sensor 52, which compose the above, in one case, they can be easily attached and inspected.

Next, a connection structure of another embodiment between respective members such as a sensor and a remote controller which constitute the entire apparatus will be described with reference to FIG. The bath remote controller 60 and the kitchen remote controller 70 are connected to the controller 90 of the controller in the hot water equipment 40 by a cable 41 of a wired remote controller.

The human body detection sensor 51 is a cable 41.
Is connected to the bath remote controller 60. The bath remote controller 60 is provided with a connecting terminal 85 for connecting the cable 41, and power for operating the human body detection sensor 51 is supplied from the bath remote controller 60. The connection between the human body detection sensor 51 and the hot water equipment 40 or the remote controls 60, 70 is not limited to the above example, and as shown in FIG. 8, a kitchen remote controller connected to the hot water equipment 40 via the communication IC from the human body detection sensor 51. 7
You may connect from 0 through the bath remote controller 60. In addition, the kitchen remote controller 70 and the bath remote controller 60 are connected via the communication IC.
The hot water equipment 40 may be connected in this order. Alternatively, as shown in FIG. 15, the human body detection sensor 51 and the hot water device 40 may be directly connected via a communication IC, similarly to the connection between the bath remote controller 60 and the kitchen remote controller 70.

In FIG. 7, the control unit 90 includes a water heater control unit 91 for controlling the hot water equipment 40, and a speaker or the like provided on each of the remote controllers 60 and 70 which is operated by an abnormality detection signal from the human body detection sensor 51. Notification means 61, 71
Is provided with a notification operation unit 92 for operating the above, and a notification canceling unit 93 for canceling the notification by the notification means. The notification operation unit 92 and the notification canceling unit 93 may be provided on the sensor side or the remote controller side. This can reduce the control load on the hot water equipment side.

Further, the bath remote controller 60 has an intercom switch which is a notification canceling means 62 for canceling the notification, an operation switch 63 for operating the hot water equipment,
Display means 64 such as a liquid crystal display plate and a touch panel for displaying is provided. Further, the kitchen remote controller 70 is provided with an intercom switch which is a notification canceling means 72 for canceling the notification, an operating switch 73 for operating the hot water equipment, and a display means 74 for displaying. In addition, a notifying means 6 provided for each remote controller for notifying a voice.
It is recommended that 1 and 71 be composed of a speaker and a voice IC.

Further, when the notification canceling means 72 does not cancel the notification, a telephone calling section 100 for calling a specific telephone number for emergency contact may be provided in the control section 90.

FIG. 8 shows a human body detection sensor 51 and each remote controller 6
It is an example of a circuit diagram showing a communication connection relationship between the 0.70 and the hot water equipment 40, and this embodiment is connected using a communication IC. The human body detection sensor 51 includes, in addition to the above-described imaging device 6, a control device 7 and a communication unit 53 including a communication IC for communication.
Is provided. This communication unit 53 is an analog communication unit 55.
And the digital communication unit 56, and the analog communication unit 55 is, for example, ASK (amplitude shift keying).
It may be configured by a method. Further, the digital communication unit 56 may employ, for example, a QPSK (quadri phase shift keying) system or a digital high-speed modulation system such as M16QAM, GFSK, or BPSK.

In the bath remote controller 60, in addition to the operation switches described above, a display means 64, a bath remote controller controller 65,
Analog communication unit 6 similar to the above, which comprises a communication IC for communication
6. A digital communication unit 67 is provided. Further, the bath remote controller 60 has a speaker 61 and a voice IC 6 for notification.
8. A PCM codec 69 is provided. This PCM
The codec 69 encodes and decodes audio information and video information by a PCM (pulse code modulation) method such as ADPCM and DPCM.

Further, the intercom switch 62 of the bath remote control 60 is for pressing a call button to bring it into a call state with the speaker of the intercom provided in the kitchen remote control 70. It may also be used as a microphone switch. Then, when the intercom stops are detected, or when an alarm is issued by the notification means, the intercom can be used to talk between the bath and the kitchen without pressing the call button. An intercom operating means 120 is provided. The intercom operating means 120 is programmed in the microcomputer as software, and the microcomputer itself may be provided in the bath remote controller, or may be provided in the human body detection sensor 51 or the controller of the hot water equipment. . In FIG. 12, the human body detection sensor 5
1 is programmed in the microcomputer of the controller 7. The remote control case of the bath remote control 60 is provided with a connection terminal 85 for connecting the cable 41. The human body detection sensor is passed through the bath remote control 60 via the kitchen remote control 70 connected to the hot water equipment 40 by the cable 41. A power supply for operation is supplied to 51.

Further, the human body detection sensor 51 is provided with a data storage unit 54 including a voice storage unit and an image storage unit described later. In the kitchen remote controller 70, in addition to the operation switch 73 described above, a display unit 74, a kitchen remote controller control unit 75, an analog communication unit 76 including a communication IC for analog communication, and a digital communication unit 77 including a communication IC for digital communication are provided. It is provided. Reference numeral 78 denotes a voice IC which is an IC for notifying the speaker 71 or the like. 79 is a PCM codec. Further, the intercom switch 62 of the kitchen remote controller 70 is in a call state with the speaker of the intercom provided in the bath remote controller 60 by pressing the call button. It may also be used as a microphone switch. Then, similarly to the above, when the stop of the movement of the human body is detected, or when the alarm by the notifying means is issued, the call between the bath and the kitchen is enabled and the intercom can be talked without pressing the call button. It is designed to work. The hot water equipment 40 is provided with the above-described control unit 90, hot water supply control unit 91, an analog communication unit 95 including a communication IC for communication, a transformer 96 for lowering the commercial power supply voltage, and the like.

The analog communication section 55 and the digital communication section 56 of the human body detection sensor 51 are connected to the bath remote controller 60.
The analog communication unit 66 and the digital communication unit 67 of the bath remote controller 60 are connected to the analog communication unit 66 and the digital communication unit 67 of the bath remote controller 60, and the analog communication unit 76 and the digital communication unit 77 of the kitchen remote controller 70 connect the hot water device 40. It is connected to the analog communication unit 95. The cable 41 between these communication parts uses a power superposition type two-core cable,
The signal for the sensor and the control signal for the normal hot water supply control may be superimposed and transmitted.

FIG. 9 is an explanatory diagram showing the contents of the data storage section 54 provided in the human body detection sensor for operating the human body detection sensor and informing the notification means.

In FIG. 9, a voice storage unit 101 stores voice data for informing the voices to the above-mentioned remote control notifying means 61, 71, and is an EEPROM.
Etc. The voice storage unit 101 has at least an operation request notification voice storage unit 107 that stores voice data for notifying a bather of a request to move the body with a message “Please move”, and a bath. The alarm notification voice storage unit 108 stores voice data for issuing an alarm to another person when the movement of the person stops and a predetermined time elapses. . Further, the operation request notification voice storage section 107 and the notification means 61, 71 constitute an operation request notification means.

An image storage unit 102 stores image display data for displaying an image for human body detection on the display means 64, 74. This image storage unit 102
Is for displaying a function necessary for human body detection by an image. For example, an operation image storage unit 103 for storing image data for displaying a screen required for initial operation of human body detection on a display unit, a human body Image storage unit 104 for storing image data for displaying the state in which the movement of the display unit is stopped, and an image storage unit for notification for storing image data for displaying the state in which the notification unit is notified on the display unit. 105 and other storage unit 106 for storing data necessary for displaying other images. The other storage unit 106 stores image data for displaying a moving image to show that the human body is moving. The moving image is not an actual captured image of the human body but a pseudo image showing that the human body is moving, such as an image of a moving doll animation. We are trying to protect privacy by anthropomorphizing not only moving images but also still images.

Although the image storage unit 102 is provided on the human body detection sensor 51 side in this embodiment, the present invention is not limited to this example, and as shown in FIG. 16, the remote controller side, for example, the bath remote controller 60 of the bath remote controller 60. The microcomputer of 65 may be provided integrally or separately. Then, the bath remote controller control unit 65 calls the image data from the other storage unit 106 of the image storage unit 102 to display the image data on the display unit 6.
The motion image display means 133 for displaying at 4 and 74 is programmed. The motion image display means 133 is operated by a signal of motion amount detection by the motion amount calculation means 111.

Further, the bath remote controller control unit 65 is programmed with a stop image display means 134 for calling image data from the stop image storage unit 103 of the image storage unit 102 and displaying it on the display units 64 and 74. The display by the stop image display means 134 is canceled by the display canceling means. The releasing means is configured to be released in response to a detection signal obtained by detecting movement of a human body, for example. A moving image may be displayed at the same time as the release.

Further, the stop image display means 134 is adapted to be operated by a signal for judging the stop of the human body by the judging means 32. The bath remote controller control unit 65 is programmed with a switching unit 135 for canceling the display by the stationary image display unit 134 and operating the moving image display unit 133 to switch to a moving image. Switching means 135
Is specifically operated by a signal from the operation switch 129 of the remote controller.

When operating the human body detecting device,
By operating the operation switch of the remote controller in advance, an initial screen image required for the operation is called from the operation image storage unit 103 on the human body detection sensor 51 side and displayed on the display means 64 and 74,
Select a specific screen from that screen to start the operation. Two
From the first time, these may be stored and used. Simultaneously with the operation, a part of the voice data is called from the voice storage unit 101 on the human body detection sensor 51 side and is notified by voice by the notification means 61, 71 such as a speaker.

Next, when the entry determination is made as described above, as shown in FIG. 6, the human body stop detection flow is entered, and the image of the human body is picked up by the image pickup device 6 at a predetermined time interval as described above ( In step S11), the captured previous image and the current image after a predetermined time are temporarily stored in the control device 7 (step S12).

Next, the motion amount calculating means 111 programmed in the control device 7 calculates the difference (motion amount) between the light receiving amount of the previous image and the light receiving amount of the current image for each pixel in each area. (Step S13). By detecting the movement of the human body by the movement amount calculation, the image data is called from the image storage unit, and the movement image display unit 133 displays the display units 64 and 7.
A moving image is displayed in step 4 (step S21).
This moving image may be composed of, for example, an animation of moving a hand, a picture of moving a body up and down, left and right, and the like, and by using the display plates of the display means 64 and 74 as a matrix display unit, a matrix is displayed. By combining the light and darkness of each dot (white, black) to form a plurality of symbols, and by repeatedly displaying the plurality of symbols in a fixed order, the still image moves using the afterimage phenomenon. It is recommended to display in a pseudo manner like an image. on the other hand,
The motion presence / absence detection unit 112 detects a region in which motion is occurring (step S14).

Then, these pieces of information are sent to the judging means 32 of the control device 7. In the judging means 32, the specific area matching judging means 113 judges whether or not the area in which the motion is occurring corresponds to a previously specified area, that is, the bathtub area 31 or the washing area 30. Further, in parallel with the determining means 32, the motion presence / absence determining means 114 determines whether or not there is a motion.

When the area in which the motion is occurring corresponds to the bathtub area 31 or the wash area 30 (in the case of YES in step S15) and when it is determined that there is no motion (in the case of YES in step S16) ), It is estimated that the bather has fallen in the bathroom, and it is determined that the movement of the person has stopped (step S17). By this stop determination, the process moves to the alarm step.

If it is determined that there is movement in the bathtub or the washing area (NO in step S16), imaging, calculation and determination are repeated at predetermined time intervals and repeated as described above. Of. Further, step S15
In the case where the area where the motion is occurring is other than the bathtub or the wash area (in the case of NO in step S15) and it is determined that there is no motion thereafter (in the case of YES in step S18), the infrared rays are detected. The sensor 52 is turned off (in the case of YES in step S19), and it is determined that the user has exited the bathroom (step S20).
In addition, when the area where the movement is occurring is other than the bathtub or the wash area (in the case of No in step 15) and the movement continues after that (in the case of No in step S18), the bathroom entrance It is believed that they are active in the vicinity, so they are continuously monitored. As described above, even when the vehicle stops at the entrance area, it is not determined that the vehicle has stopped, so that an alarm due to an erroneous determination is not generated.

Next, the human body monitoring flow shown in FIG. 13 will be described. When the stop determination is made as described above (step S30), the stop determination signal is output,
The moving image is stopped and the stopped image display means 13
4 operates, and an image showing the stopped state is displayed on the display means 64, 7.
4 is displayed (step S30). This stop image is
It may be configured by using one still image that constitutes a part of the above-described moving image. Alternatively, they may be separately created and configured. Sharing images simplifies image creation.

The control device 7 for the human body detection sensor 51
The timer means 117 provided in step S31 starts the stop count operation (step S31). The timer means 117 is started by a stop determination signal from the determination means 32 and counts a predetermined time. This predetermined time is divided into two steps, and the predetermined time of the first step is, for example, 90 seconds,
The predetermined time of the second stage following this is set to 30 seconds. The predetermined time is not limited to this example, and can be arbitrarily set other than this.

Then, the timer means 117 and the display means 6
In relation to Nos. 4 and 74, the timer means 117 uses the clock function of the microcomputer of the control means of the human body detection sensor 51 to count the time under normal conditions. This time display is displayed on the display means 64 of the bath remote controller 60 by the time display means 130 of the microcomputer of the bath remote controller 60 provided in the bath remote controller 60. Further, the microcomputer of the bath remote control unit 65 is provided with the timer means 117 after the stop determination.
After the set time has elapsed from the start of counting by the display means 6
Count display means 13 for displaying the count on 4
1 is provided. Specifically, the count display means 131 starts to display a number on the display means 64 after 60 seconds have elapsed after the stop determination, until the predetermined time of 90 seconds, which is the first step, has elapsed. During the period, that is, from the start of the display, the count status is displayed by numbers for 30 seconds. It is recommended that this count display be sequentially counted down from 30. Thereby, the bather can instantly grasp the remaining time until the later notification of the operation request. In addition, the bath remote control unit 65
The microcomputer of, the screen of the display means 64,
Switching display means 1 for switching from time display to count display
32 is provided.

In FIG. 13, when the set time elapses after the stop determination (Yes in step S40), the count display means 131 causes the display means 64,
A numerical value is displayed on 74 (step S41). Instead of numerical values, different pictorial diagrams may be displayed according to the passage of time. Although the count is started here, by delaying the display of the count only by the set time from the start of the count, which is the time when the stop is determined, the bather may feel anxiety that the count will start immediately after the stop. Can be wiped off.
Further, in response to an operation request described later, when the movement is started, the timer is released, the count display itself can be omitted, and the number of times of switching to the clock display can be reduced.

Further, when the motionless state continues for the first predetermined time (90 seconds) (step S33), a motion request signal is output from the human body detection sensor 51 side (step S33).
34), the bath remote controller 60 notifies the bather of the operation request (step S35). Regarding this notification procedure, the previously stored information corresponding to the stopped scene is read from the operation request notification voice storage unit 107 of the voice storage unit 101 side of the human body detection sensor 51 and the stopped image storage unit 104 of the image storage unit 102. Then, the data is transmitted via the analog communication unit 55 and the digital communication unit 56, and the remote control unit is notified by voice and displayed as an image.

More specifically, this notification may be made, for example, by voice information and a character image such as "There is no movement in the bathroom. Please move." This is to prevent the false alarm of the human body detection sensor by requesting the bather to move in the bathtub because the motion may stop if the user stays still in the bathtub. This notification is given after a while after it is soaked in the bathtub and does not move, that is, after the stop determination and after a predetermined time elapses. Therefore, the operation request is not made immediately after being immersed in the bathtub.

When the human body detection sensor 51 detects the movement of a person within the above predetermined time after the stop determination (step S3)
(No in 2), it can be assumed that the bather is alive and the timer is canceled (step S42). And at the same time,
In response to the detection signal obtained by detecting the movement of the human body, the display of the still image by the still image display means 134 is canceled (step S43). After being released, the moving image display means 133
Therefore, the moving image may be displayed again. This allows family members in remote locations to know that they have started moving after the stop.

Then, even after the operation request is notified (step S35), if the still stopped state continues for the second predetermined time (30 seconds) (Yes in steps S36 and 37), An abnormal state is determined, an abnormality detection signal is output from the determination unit 32, and the alarm notification voice storage unit 108 and the image storage unit 1 of the voice storage unit 101 are output.
Information stored in advance for notifying another person of an abnormal state is transmitted from the notification image storage unit 105 of No. 02 via the communication unit 53, and the notification units 61 and 71 of each remote controller are audibly alarmed and the display unit is displayed. Images are displayed on 64 and 74 (step S38).

This alarm (step S38) is specifically made by, for example, voice information and a character image such as "please go to the bathroom". As a result, the abnormality information of the human body detected by the human body detection sensor 51 can be simultaneously issued to the kitchen as well as the bathroom.

This alarm signal is transmitted as shown in FIG. 8 via the communication section composed of the communication IC. That is, the voice storage unit 101 and the image storage unit 10 provided in the human body detection sensor 51.
2, the voice and the image data are called according to the above-mentioned signals and transmitted to the kitchen remote controller 70 via the analog and digital communication units 66 and 76, and the notification means 71 and the display means such as a speaker provided in the kitchen remote controller 70. Notification and display at 74. Image detection and processing is performed in each of the areas 2 described above.
Since it is performed every 9, 30, and 31, the response speed for notification and display will be accelerated.

Since the intercom is already in a call-enabled state, a bather who does not move but can speak is as long as he or she can speak in an emergency in an abnormal state without pressing the call button. It is convenient to be able to contact the family outside the bathroom immediately.

When the human body detection sensor 51 detects the movement of a person within a predetermined time after the notification of the operation request (step S3)
(No in 6), the bather can be inferred to be in good health, and the timer is canceled similarly to the above (step S44). At the same time, in response to the detection signal from the detection of the movement of the human body, the display of the stop image by the stop image display means 134 is canceled (step S45). After the cancellation, the moving image may be displayed again. As a result, the state of the bathroom up to the alarm notification can be grasped from a remote place.

After the alarm is given, a family member rushes to the bathroom and rescues. The notification and the cancellation of the stop image display may be performed by, for example, turning off the operation switch 129 (step S39). After the operation switch is turned off, the motion amount may be displayed again by detecting the motion amount again.

The above-described embodiment shows a preferred embodiment of the present invention, and the present invention is not limited to this, and various design changes can be made within the range. Further, although the system bathroom has been described in the present embodiment, the present invention is not limited to this example, and the system bathroom can be installed in other existing bathrooms. Furthermore, the human body detection sensor is C
A CD camera may be used. Further, although the human body detection sensor and the notifying means are connected by wire, they may be connected by wireless.

[0067]

As described above, according to the present invention, if a motion of a human body is detected before an alarm is issued, a moving image is displayed, and a family member who sees the image can feel a sense of security. . In addition, since a moving image is displayed to the bather when he is moving, he can know that the sensor is operating reliably and can take a bath with peace of mind. On the other hand, since the timer counts after the stop determination, there is no problem with the alarm notification at a later time.
Further, according to the present invention, when the movement of the bather stops, the moving image that has been moving until now stops the movement and becomes a stop image, so that family members can grasp the movement of the bathroom even before the alarm sounds. It becomes possible to do. In addition, the bather can be aware of this and start moving, and the false alarm can be eliminated. Further, according to the present invention, when the movement starts after the stop, the display of the stop image is canceled and the moving image is displayed again, so that the family member can feel a sense of security, and the bather can move the sensor again. Can be detected and it can be known that it is operating properly. Further, the present invention is
When you start moving after stopping, the display of the stopped image is switched, and the moving image is displayed again, so the family members can feel reassured, and the bather can detect the movement again and the bather can properly detect it. You can know that it is working. Further, one still image can be shared and used, and the image creation is simplified. Further, according to the present invention, the amount of movement is calculated to determine whether or not there is movement, so that the movement of the human body can be detected quickly and surely, and it is possible to ensure a later warning and a reliable image display. Furthermore, the present invention can detect in which area the movement of the human body has stopped,
It is possible to improve the certainty of stop detection and speed up the display of the stop image. Furthermore, the present invention can quickly detect that a person has stopped, especially in the area of a washing room or a bathtub where accidents frequently occur, speed up image display and alarm, and enable immediate contact by family members. .

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram of an electric circuit showing an embodiment of the present invention.

FIG. 3 is a circuit diagram showing a configuration of an image core circuit that constitutes one pixel of an image detection unit of a human body detection sensor.

FIG. 4 is an explanatory diagram showing a relationship between an image pickup range of a sensor, a detection range, and a detection region.

FIG. 5 is a flowchart showing an embodiment of the present invention.

FIG. 6 is a flowchart showing a flow of human body monitoring of the present invention.

FIG. 7 is a block diagram showing an embodiment of the entire apparatus of the present invention.

FIG. 8 is a block diagram showing another embodiment showing a communication relationship.

FIG. 9 is a block diagram showing an outline of a storage unit.

10A is a diagram showing a current image and a previous image of an object moved to the lower right, FIG. 10B is a diagram showing brightness and darkness of the previous image for each pixel, and FIG. It is a figure which shows the brightness of an image for every pixel.

FIG. 11 is a diagram showing a difference image showing a change in lightness and darkness in a pixel corresponding to an image boundary.

FIG. 12 is an electric circuit block diagram showing one embodiment.

FIG. 13 is a flowchart of human body monitoring showing an embodiment.

FIG. 14 is an electrical block diagram showing another embodiment.

FIG. 15 is an electric block diagram showing another embodiment of the present invention.

FIG. 16 is an electrical block diagram showing an embodiment of the present invention.

[Explanation of symbols]

1 bathroom 2 bathtubs 3 washroom 4 doorways 5 human body sensor 6 Imaging device 7 Control device 9 Image detector 15 Image output section 17 Image core circuit 24 area dividing means 26 Detection area 29 Entrance area 30 washroom area 31 Bath area 32 Judgment means 40 Hot water equipment 41 cable 42 Controller 47 Power plug 51 Human body detection sensor 52 infrared sensor 54 data storage unit 55 Analog Communication Department 56 Digital Communications Department 60 bath remote control 61 Notification means 62 Release means 66 Analog communication unit 67 Digital Communications Department 70 kitchen remote control 71 Notification means 76 Analog communication unit 77 Digital Communications Department 85 terminals 90 Control unit 100 telephone call department 101 voice memory 102 image storage unit 103 Operation image storage unit 104 still image storage unit 105 Notification image storage unit 106 Other storage section 107 operation request notification voice storage unit 108 Alarm notification voice storage unit 111 Motion amount calculation means 112 Motion Presence / Absence Area Detection Means 113 Specific Area Applicability Determination Means 114 motion presence / absence determining means 115 image storage means 116 Entrance area applicable determination means 117 timer means 120 Intercom operation means 130 time display means 131 count display means 132 switching display means 133 motion image display means 134 Stop image display means 135 switching means

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shinji Narimasa             93 Edo-cho, Chuo-ku, Kobe-shi, Hyogo Stock Association             Company Noritsu F term (reference) 5C086 AA22 BA04 CA12 CA28 CB16                       CB36 DA01 DA33 EA11 EA13                       EA45 FA01 FA11                 5C087 AA02 AA03 AA09 AA10 AA24                       AA25 AA37 AA42 BB65 BB74                       DD03 DD06 DD08 DD24 DD25                       DD49 EE06 EE07 EE18 GG36

Claims (7)

[Claims] 1. A human body detecting sensor for monitoring a bathroom or the like, a judging means for judging the stop of the movement of the human body by the human body detecting sensor, a timer for starting counting when the human body detecting judgment is made by the judging means, and the timer. The human body detection device is provided with an informing means for issuing an alarm after a predetermined time has elapsed and a motion image display means for detecting a motion of the human body and displaying a moving image. 2. A human body detection sensor for monitoring a bathroom or the like, a determination means for determining whether the human body movement is stopped by the human body detection sensor, a timer for starting counting when the determination means determines the human body is stopped, and the timer. By means of a warning means for issuing a warning after a lapse of a predetermined time, a moving image display means for detecting a motion of a human body and displaying a moving image, and a stopping of the moving image when the judgment of the human body is judged by the judging means. A human body detection device, characterized in that a stop image display means for displaying is provided. 3. A human body detection sensor for monitoring a bathroom or the like, an image pickup device for picking up an image of a monitoring area at a predetermined time interval, and a movement amount of a human body is calculated as a difference in light receiving amount by comparing both images before and after the predetermined time interval. And a motion presence / absence determining means for determining presence / absence of motion by the motion amount computing means,
The determination means for determining the movement of the human body by the movement presence / absence determination means, the timer for starting counting when the determination means determines the stop of the human body, the notification means for issuing an alarm after a predetermined time has elapsed by the timer, and the movement of the human body Motion image display means for detecting and displaying a moving image, stop image display means for stopping and displaying the moving image when the determination of the human body is stopped by the determination means, and movement of the human body by the determination means A human body detecting device, comprising: a releasing means for releasing the display of the stationary image display means upon detection. 4. A human body detection sensor for monitoring a bathroom or the like,
Judgment means for judging the stop of the movement of the human body by the human body detection sensor, a timer for starting counting when the judgment of the movement of the human body by the judgment means, an informing means for issuing an alarm after a lapse of a predetermined time by the timer, the movement of the human body And a moving image display means for displaying a moving image, a stop image displaying means for stopping and displaying the moving image when the determination of the human body is stopped by the determining means, and a display by the stop image displaying means. A human body detection device, comprising: a switching means for canceling the display and switching to a moving image. 5. An image pickup device for picking up an image of a monitoring area at a predetermined time interval, a movement amount calculation means for calculating a movement amount of a human body as a difference in received light amount by comparing both images before and after the predetermined time interval, and the movement amount. The human body detection according to any one of claims 1 to 4, further comprising: a motion presence / absence determining means for determining the presence / absence of motion by the computing means, and a determining means for determining the movement of the human body by the motion presence / absence determining means. apparatus. 6. An image pickup device for picking up an image of a monitoring area at a predetermined time interval, an area dividing means for dividing a detection area into an entrance area and an area other than the entrance area, and a movement amount of a human body before and after the predetermined time interval. A motion amount calculating means for calculating a difference in the amount of received light by comparing images, a motion presence / absence area detecting means for detecting whether or not there is a motion in each of the areas divided by the area dividing means, and the motion amount calculating means. A motion presence / absence determining means for determining the presence / absence of motion, a specific area matching determining means for determining whether the area detected by the motion presence / absence area detecting means corresponds to a previously specified area, and the motion presence / absence determining means The human body detection device according to any one of claims 1 to 4, further comprising: a determination unit that determines whether or not the movement of the human body is stopped by the specific region corresponding determination unit. 7. An image pickup device for picking up an image of a monitoring area at a predetermined time interval, an area dividing means for dividing a detection area into an entrance area and an area other than the entrance area, and a movement amount of a human body before and after the predetermined time interval. A motion amount calculating means for calculating a difference in the amount of received light by comparing images, a motion presence / absence area detecting means for detecting whether or not there is a motion in each of the areas divided by the area dividing means, and the motion amount calculating means. Motion presence / absence determining means for determining presence / absence of motion, specific area corresponding determining means for determining whether the area detected by the motion presence / absence area detecting means corresponds to a previously specified area, and the specific area corresponding determination When the detection of the amount of movement by the means determines that it is a washroom or bathtub area, and when it is determined by the movement presence / absence determining means that the amount of movement does not exist, the movement of the human body has stopped. The human body detection device according to any one of claims 1 to 4, further comprising: determination means for determining.