JP2002042281A - Safety discriminating device and safety deciding device and reporting device - Google Patents

Abstract

(57) [Abstract] [Problem] To eliminate the difficulty of installation such as a water sensor. Eliminate malfunctions such as infrared sensors and toilet door open / close detection sensors. Makes wiring work easier. SOLUTION: The brightness and the temperature in the room are detected by an optical sensor 2 and a temperature sensor 3, respectively. When the brightness does not change suddenly for more than 12 hours or when the temperature does not change suddenly for more than 12 hours, the means 4 for judging safety judges that some abnormality has occurred in the occupant and sends it to the notification device 6 by radio. Send a signal. The presence / absence determination device 7 detects that the key ring 9 of the entrance key 8 is in the key box 10 and sends a home signal to the notification device 6 by wireless 11. When receiving the home signal and the abnormal signal, the notification device 6 first sounds the buzzer 12,
It also calls outside, sounds an outdoor buzzer, and blinks a lamp.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety judging device for judging the safety of a resident (also referred to as a resident), a safety judging device used in the safety judging device, and a notification device.

[0002]

2. Description of the Related Art As one moves toward an aging society, the lonely death of the elderly has become a social problem.

As a system for preventing lonely death, a system for indirectly monitoring the health condition of a resident and determining the safety of the resident is used. The following three types are known as safety sensors used in this type of system.

[0004] (1) Water sensor This is to detect the use of water and confirm the safety.
Widely used in new apartment buildings.

(2) Infrared sensor The infrared sensor detects infrared radiation due to the occupant's body temperature.

(3) Toilet door opening / closing detection sensor This sensor detects opening / closing of a toilet door. When the opening / closing operation is not detected for a certain period of time or more, it is determined that an abnormality has occurred in the resident.

[0007]

SUMMARY OF THE INVENTION In the above prior art,
In the water sensor of (1), it is desirable to mount the sensor at the base of the water pipe of the dwelling unit (or room) (that is, on the upstream side) in order to reliably detect the use of water. No location or sensor and alarm (or display)
There is a problem that the wiring work of the electric wire connecting between them is difficult.

[0008] There is a problem that the infrared sensor of (2) malfunctions due to pets malfunctioning. The toilet door open / close detection sensor of (3) has a problem that the toilet door is always kept open, and there are many false alarms.

Therefore, the present invention solves such a problem, and is easily attached to an existing apartment house or a detached house, and has a small number of false alarms and a safety judgment device used in the safety judgment device. And a notification device.

[0010]

According to one aspect of the present invention, there is provided a system for determining the safety of a resident, comprising: a presence / absence determination device based on the presence / absence of a key; And / or a means for determining the safety of the occupant based on a change in temperature, and a notifying device which is connected to the means and the presence / absence determination device wirelessly or by wire to output a signal to the outside. Is a safety determination device.

According to a second aspect of the present invention, in a system for determining the safety of a resident, presence / absence determination of detecting presence / absence of an entrance key in a predetermined key box and outputting a presence / absence electric signal. A device, an optical sensor that detects the brightness in the living room and outputs an electric signal, and receives the electric signal from the optical sensor and the electric signal from the presence / absence determination device, and controls the brightness time by the optical sensor. That the target change is below a certain level for a certain period of time, and
A safety discriminating device comprising: safety judging means for judging an abnormality when the presence signal from the absent judging device continues, and issuing a warning or notification.

According to a third aspect of the present invention, in a system for determining the safety of a resident, presence / absence determination for detecting presence / absence of an entrance key in a predetermined key box and outputting a presence / absence electric signal. A temperature sensor that detects the temperature in the living room and outputs an electric signal, and receives the electric signal from the temperature sensor and the electric signal from the presence / absence determination device, and changes the room temperature with the temperature sensor over time. Safety determination means for determining that there is an abnormality when a room signal from the presence / absence determination device continues for a predetermined period of time for which the value is less than or equal to a predetermined period of time and for the duration, and issues a warning or notification. And a safety determining device.

According to a fourth aspect of the present invention, in a system for determining the safety of a resident, presence / absence determination of detecting presence / absence of an entrance key in a predetermined key box and outputting a presence / absence electric signal. The device, an optical sensor that detects the brightness in the living room and outputs an electric signal, a temperature sensor that detects the temperature in the living room and outputs an electric signal, and an optical sensor that receives the electric signals from both sensors The temporal change of the brightness is not more than a fixed value for a certain time or more, and the temporal change of the room temperature by the temperature sensor is not more than a fixed value for a certain time or more. -A safety determination device characterized by comprising: safety determination means for determining an abnormality when the presence signal from the absence determination device continues and issuing a warning or notification.

According to a fifth aspect of the present invention, in the system for determining the safety of a resident, an optical sensor for detecting the brightness of a living room and outputting an electric signal, and detecting a temperature of the living room and outputting an electric signal. Temperature sensor, receiving the electrical signal from the optical sensor and the electrical signal from the temperature sensor, the temporal change in brightness by the optical sensor is less than or equal to a certain period of time, and continues for a certain period of time, and A safety determination device comprising: safety determination means for determining that an abnormality has occurred when the temporal change is less than or equal to a certain value for a certain time or more, and issuing a warning or notification.

According to the present invention, if the temporal change of the brightness and the temperature of the room is less than a certain value over a certain time,
It is determined that an abnormality has occurred in the resident and a warning or notification is issued.

According to a sixth aspect of the present invention, in the safety determination apparatus of the second, third, fourth, or fifth aspect, the transmission path between the presence / absence determination apparatus and the safety determination means or the communication path between the optical sensor and the safety determination means is provided. At least one of the transmission paths between the temperature sensor and the safety determination means is configured as a wireless transmission path.

According to a seventh aspect of the present invention, there is provided a presence / absence determination device for determining presence / absence based on the presence / absence of a key, and a resident's safety based on a change in brightness. Means for judging the safety of a resident outputting an abnormal signal when there is no occupancy signal and the occupant safety judgment based on the change in brightness is not provided. It is.

[0018] By connecting the safety judging device of the present invention to an existing notifying device, a highly reliable safety judging device with few malfunctions can be obtained.

The invention according to claim 8 is a presence / absence determination device that determines presence / absence based on the presence / absence of a key and outputs a presence / absence signal, and an optical sensor that detects the brightness of a living room by using an optical sensor. Means for outputting an abnormal signal when the temporal change is less than or equal to a predetermined value for a predetermined time or more and the presence / absence determination device outputs a presence signal. It is a determination device.

The safety determination device of the present invention can also be upgraded by connecting it to an existing notification device.

In these inventions, the entrance key includes a so-called room key. Radio waves or infrared rays can be used for the wireless transmission path.

According to a ninth aspect of the present invention, in the first aspect, a presence / absence determination device that operates in response to a resident returning home or going out is provided in place of the presence / absence determination device based on the presence / absence of a key. It is a safety determination device characterized by the following.

According to a tenth aspect of the present invention, in accordance with the second, third, fourth or sixth aspect of the present invention, the presence or absence of an entrance key in a predetermined key box is detected to output a presence / absence electric signal. A safety determination device characterized by including a presence / absence determination device that operates in response to a resident returning home or going out and outputs a presence / absence electric signal instead of the absence determination device.

According to an eleventh aspect of the present invention, in the invention of the seventh aspect, instead of the presence / absence determination device for determining presence / absence based on the presence / absence of a key, presence / absence is determined in response to a resident returning home or going out. A safety determination device comprising a presence / absence determination device for determining.

According to a twelfth aspect of the present invention, in the invention of the eighth aspect, instead of the presence / absence determination device for determining presence / absence based on the presence / absence of a key and outputting a presence / absence signal, the resident is required to return home or go out. A safety determination device comprising a presence / absence determination device that determines presence / absence and outputs a presence signal correspondingly.

According to the ninth to twelfth aspects of the present invention, the presence / absence determination device based on the presence / absence of a key and the presence / absence of an entrance key in a predetermined key box are output to output a presence / absence electric signal. Keys such as presence / absence determination device, presence / absence determination device that determines presence / absence based on presence / absence of key, and presence / absence determination device that determines presence / absence based on presence / absence of key and output occupancy signal The presence / absence determination device that determines the presence / absence in response to the resident's returning home or going out is used in place of the presence / absence determination device that determines the presence / absence according to the presence / absence of the entrance key or room key. A presence / absence determination device that determines presence / absence in accordance with the presence / absence may be used.
It may be one that determines absence. Further, the present invention is not limited to the push button switch and the like. A passive sensor automatically monitors the resident's returning home or going out and determines presence / absence of the resident based on a signal of the sensor. It may be a determination device.

Further, the expression of claim 9 will be described in detail. To provide a presence / absence determination device that operates in response to a resident returning home or going out, instead of a presence / absence determination device based on the presence / absence of a key, This does not mean that the presence / absence determination device based on the presence / absence of the key is not used, but that the presence / absence determination device that operates in response to the resident returning home or going out is used. Although the expression "instead of" may be confusing, the presence / absence determination device that operates in response to a resident returning home or going out includes a presence / absence determination device based on the presence or absence of a key. The present invention is considered to fall into the category, and also includes the presence / absence determination device using the push button switch and the passive sensor that operate in connection with returning home or going out. In short, the expression includes a presence / absence determination device in a broad sense using an entrance key, a room key, a push button switch, a passive sensor, and the like. The meaning of the presence / absence determination device is the same for claims 10, 11 and 12.

According to a thirteenth aspect of the present invention, there is provided an integrated unit comprising: means for determining the safety of a resident based on a change in brightness; and a presence / absence determination device for determining presence / absence based on the presence / absence of a key. It is a safety determination device characterized by the following.

According to a fourteenth aspect of the present invention, a means for determining the safety of a resident based on a change in brightness and a presence / absence determination device for determining presence / absence based on the presence / absence of a key are incorporated. Notification device.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIGS. 1 to 3 correspond to claim 1.

In FIG. 1, reference numeral 1 denotes a safety determination device, which is installed in a dwelling unit (a living room in an apartment house).

The brightness (illuminance) of the room changes depending on the on / off state of the lighting, the opening / closing of a curtain, and the like. The brightness is detected by the optical sensor 2. The room temperature changes depending on the on / off state of the air conditioner, the cooking operation in the kitchen, and the like. The brightness and temperature (room temperature) may change rapidly if the lighting is turned on or off by a resident artificially, the curtain is opened or closed, the air conditioner is turned on or off, or the kitchen is being cooked. However, changes in the external world (nature), that is, changes in brightness and room temperature due to changes in the environment are slow natural changes.

When the resident goes out or falls down due to a health problem or the like, the artificial operation is eliminated, and the brightness and temperature detected by the optical sensor 2 and the temperature sensor 3 are eliminated. The change is not abrupt but a slow natural change.

Therefore, means 4 for determining the safety of the resident
Determines the safety of a resident based on a change in brightness and / or a change in temperature. FIG. 2 shows an example of a change in brightness and temperature when a resident is living fine during a sunny winter day. The brightness is caused by turning on / off a fluorescent lamp and opening / closing a curtain. Sudden changes in heating,
In addition to a sudden change in temperature due to turning off, natural changes in brightness and temperature are mixed.

The means 4 determines that the brightness is normal (energy) if there is a sudden change in brightness within 12 hours, for example, a change of 50 lux or more within 1 minute.
If there is no such a rapid change over a period of time, it is determined that there is an abnormality. Regarding the temperature, if there is a rapid change in temperature within 12 hours, for example, a change of 7 degrees or more within 15 minutes, it is determined that the temperature is normal (energy), and such a rapid change occurs over 12 hours or more. It is determined that there is no abnormality when there is not.

Therefore, when a change in brightness or temperature as shown in FIG. 3 is detected, there is no sharp change in brightness after 12:00, and there is no sharp change in temperature after 6:45. Therefore, it is 0:00 that 12 hours have passed since 12:00.
And transmits the determination result to the notification device 6 by wireless 5 or by wire.

The presence / absence determination device 7 is also called, for example, a key box system. When the entrance key 8 or the room key holder, that is, the key holder 9 is put in the key box 10, the presence / absence determination device 7 can be confirmed. The presence or absence of the key ring 9 is detected by detecting whether or not the key ring 9 is present in the key box 10, and the determination result is transmitted to the notification device 6 by wireless 11 or by wire.

The notification device 6 first sounds the warning buzzer 12 when there is an occupancy signal from the presence / absence determination device and when the abnormality information is received from the safety determination means 4. This notice buzzer 12 can be canceled by pressing the reset button 13 when the person (resident) is in good health, does not report to the outside, and prevents false reports.

If the reset button 13 is not pressed, a notification is made to the outside by a telephone, a buzzer sounds outside, or an outdoor lamp blinks slightly after the warning buzzer 12 sounds.

In the case of FIG. 3, since the person (resident) collapsed at 13:00 for some reason, the sharp change in brightness and temperature disappeared after 12:00, and 0:12 hours later.
Although an abnormality alarm is issued at 00, it is also possible to determine that an abnormality has occurred when either the brightness or the temperature has not changed abruptly for a certain period of time (for example, 12 hours) or more, and to report the abnormality.

For example, when the air conditioner is turned on and the air conditioner is turned on, there is a risk that the temperature may be rapidly changed due to the turning on / off of the air conditioner and the discovery may be delayed. Therefore, it is preferable to issue an abnormality alarm when a sudden change in brightness is not detected for 12 hours or more and the presence / absence determination device confirms that the room is present. In addition, although the temperature changes slowly, if there is a sudden change in brightness due to the fact that the airplane blocks the sunlight, there is a risk of discovery being delayed. It is good to put out.

In addition, a learning function can be provided by installing a CPU so that a normal pattern of brightness and temperature based on the resident's life pattern can be memorized, and an abnormality report can be made when the pattern greatly deviates from the pattern. By doing this,
Faster detection and notification is possible.

[Embodiment 2] Embodiment 2 of FIG.

The brightness and the temperature in the living room are detected by the optical sensors 2 and 3 and converted into electric signals.
5 or wirelessly transmitted to the safety determination means 16 of the notification device 6A.

The safety determining means 16 receives the brightness and temperature information from the optical sensor 2 and the temperature sensor 3 while receiving the presence signal from the presence / absence determination device 7 and keeps the brightness and temperature for 12 hours. When there is no rapid change over the above time, it is determined that there is an abnormality, and the warning buzzer 12 is first sounded. If the reset button 13 is not pressed, a telephone call is issued to the outside with a slight delay, or the outdoor buzzer is sounded. Sounds or flashes the outdoor lamp to notify you.

The determination of the brightness is performed in the same manner as in the first embodiment.
If there is a sudden change within 12 hours, for example, a change of 50 lux or more within 1 minute, it is determined to be normal (energy) and 1
If there is no such a rapid change for two hours or more, it is determined to be abnormal. Regarding the temperature, if there is a rapid change in temperature within 12 hours, for example, a change of 7 degrees or more within 15 minutes, it is determined that the temperature is normal (energy), and such a rapid change occurs over 12 hours or more. It is determined that there is no abnormality when there is not.

In the embodiment shown in FIG. 4, an abnormal alarm is issued when both physical quantities of brightness and temperature change only slowly over a certain period of time while in the room. To prevent delays in finding when a resident falls while the air conditioner is on, as exemplified in 1,
Of the two physical quantities, a safety determination can be made only by a change in brightness, and an abnormality alarm can be issued based on the result and the determination result of the presence / absence determination device 7 (claim 2).

Further, even if the occupants remain in a collapsed state, it is possible that a sudden change in brightness caused by the airplane blocking the sunlight may delay the detection of an abnormality. It is also possible to make a safety determination only by a change in temperature among the two physical quantities, and to issue an abnormality alarm based on the result and the determination result of the presence / absence determination device 7 (claim 3).

Further, it is possible to determine the safety based on the presence or absence of a sudden change in the physical quantity of both brightness and temperature, and to configure a safety determination device without using the presence / absence determination device 7 of the second embodiment. 5). By doing so, it is possible to prevent a delay in finding an abnormality when a key is not put into a predetermined key box.

In FIG. 4, a wire transmission line may be used in place of the radio 11. A wireless transmission path may be used instead of the wires 14 and 15 (claim 6).

[Embodiment 3] The embodiment of FIG.
And a means 4A for determining the safety of the occupant based on the change in brightness detected by the optical sensor is built in the notification device 6B. The means 4A has a function of outputting a signal when the temporal change of the brightness is equal to or less than a certain value for a certain time or more, which is different from the means 4 in the first embodiment.
Is similar to

When the occupancy signal of the presence / absence determination device 7 based on the presence / absence of the key 8 is output and the signal of the means 4A is output, the notification device 6B notifies the telephone of a predetermined contact. Sounds an outdoor buzzer or flashes a lamp to signal an abnormality. Reference numeral 17 denotes a push-button switch for emergency calls, and it is well known that such a push-button switch is provided in a notification device.

The notification device 6B operates on a commercial power supply, and the means 4A built in the notification device 6B operates upon receiving power supply from the notification device. Although the optical sensor 2 is provided in the means 4A, the optical sensor 2 receives light from a square light receiving window of the notification device 6B to detect the brightness. The third embodiment corresponds to claim 1.

By the way, the brightness of the room becomes very bright when the opening window of the room faces south and is strongly influenced by sunlight. FIG. 6 shows an example of brightness in a state where indoor lighting is not used. When the brightness in the daytime is strong, the brightness may be several hundred lux or more, and a variation in brightness may be seen as shown by a symbol A in FIG. Due to such fluctuations,
There is also a method of cutting the brightness of 100 [lx] or more in order to avoid malfunction of the means 4A for determining safety. In order to realize this method, a limiter provided in an amplifier for amplifying the signal of the optical sensor 2 can be operated at a brightness of 100 [lx] or more. Further, in order to avoid a malfunction (erroneous report) due to a change in brightness indicated by the reference symbol A, an output is generated as an abnormality at a brightness of 100 [lx] or more so that the system works on the safe side. it can.

Further, in order to prevent the airplane from instantaneously shutting off the sunlight or to prevent an erroneous determination due to the fluctuation indicated by reference character A, a circuit having a large time constant of the chattering prevention circuit can be used. The chattering prevention circuit prevents a plurality of pulses generated when the mechanical switch is turned on. However, since the fluctuation in brightness indicated by reference numeral A in FIG. 6 is similar to the chattering of the mechanical switch, this type of chattering prevention circuit is used. Technology can be used.

In order to prevent an erroneous determination due to a sharp change in brightness (noise) indicated by a symbol A in FIG.
It is also possible to take measures such as sampling every 0 seconds, taking a moving average of a plurality of continuous sampling values, or taking a majority decision to confirm.

[Embodiment 4] The embodiment of FIG.
The means 4B for judging the presence or absence of a resident based on the change in brightness detected in the above, and the presence / absence judgment device 7A based on the presence or absence of the key 8 are detachably provided to the notification device 6. The state shown in the figure is a means 4B for determining safety and a presence / absence determination device 7A.
Shows an aspect in which is attached to the notification device 6 and is electrically connected. The means 4B for determining the safety of the resident and the presence / absence determination device 7A perform the same functions as the means 4A for determining the safety of the resident and the presence / absence determination device 7 described in the third embodiment of FIG.

[Embodiment 5] In the embodiment shown in FIG. 8, means 4C for judging the safety of the resident using the optical sensor 2 in the existing notification device 6 and the presence / absence judgment for presence / absence of a key are provided. The safety determination device 1 comprising the absence determination device 7 is electrically connected to the safety determination device 1. In this embodiment, the presence / absence determination device 7 is a box-shaped key box 1 opened upward.
When the key 8 is set to 0, an occupancy signal is transmitted to the means 4C for determining safety via the electric wire 19. Means 4C is to output an abnormal signal through the electric wire 20 when the temporal change of the brightness detected by the optical sensor 2 is equal to or less than a constant for a fixed time or more and when there is a room signal from the presence / absence determination device 7. To the notification device 6. When receiving the abnormal signal, the notifying device 6 automatically notifies a predetermined contact by telephone, sounds an outdoor buzzer, or blinks a lamp to automatically notify the abnormality.

Since the notification device 6 is a known device and has a plurality of sensor connection jacks, a plug at the end of the electric wire 20 is inserted into one of the jacks, and the safety determination device 18 is electrically connected to the notification device 6. Connect to In addition, the safety judgment device 18
Operates upon receiving power supply from the notification device 6. 21 is a well-known hand switch, 22 is a wireless receiver connected to the notification device 6 by an electric wire 23, and is wirelessly (radio-electrically) connected to a well-known pendant switch 24 of a resident, especially an elderly person. When the switch 24 is pressed, the wireless receiver 22 receives it and the reporting device 6 automatically reports. In this embodiment, an easy-to-use safety determination device 1 can be configured by connecting the safety determination device 18 to the sensor connection jack of the existing notification device 6.

FIG. 9 is a block diagram of the safety judging device 18 in the fifth embodiment shown in FIG. 8. The electric signal of the optical sensor 2 is amplified by the amplifier 25, and the signal of 100 [lx] or more is limited by the limiter 26. The determination circuit 27 determines whether or not the change in brightness is natural and not artificial over a certain period of time or more, and determines whether or not it is safe. The output B is input to the occupancy signal D of the key sensor 28 of the presence / absence determination device 7 and the AND gate 29, and
9 is transmitted to the notification device 6 as an abnormal signal. This embodiment corresponds to claims 1, 7 and 8.

In the embodiment shown in FIGS. 1, 4, 5, 7, and 8, the presence / absence determination device 7 or 7A is provided with the key box 10. However, the presence / absence determination device is such a device. In addition, a pushbutton switch operated when the resident goes out or goes home is installed at the entrance, and the presence / absence is determined in relation to the operation of the pushbutton switch, and the presence signal is output. A device, that is, a presence / absence determination device that operates in response to a resident returning home or going out can be used. Also, as this presence / absence determination device, a passive sensor for monitoring going out and returning home is provided in addition to the push button switch,
It is also possible to use a device that determines the presence or absence (claims 9 to 12).

[Embodiment 6] The embodiment 6 shown in FIG. 10 is different from the embodiment 5 shown in FIG. 8 in that the light sensor 2 is used to determine the safety of a resident based on a change in brightness. And the presence / absence determination device 7 that determines presence / absence based on the presence or absence of a key and a safety determination device 18 integrally provided
The overall operation as the safety determination device 1 is the same. In the embodiment shown in FIG. 10, the elements denoted by the same reference numerals as those in the embodiment 5 shown in FIG. 8 perform the same operation as the embodiment shown in FIG. The embodiment of FIG. 10 corresponds to claim 13.

[Embodiment 7] Embodiment 7 of FIG. 11 corresponds to claim 14. In this embodiment, means 4A having the optical sensor 2 and determining the safety of the occupant based on a change in brightness detected by the optical sensor is incorporated in the notification device 6.
The means 4A has a function of outputting a signal when the temporal change of the brightness is equal to or less than a certain value for a certain time or more. A presence / absence determination device 7B for determining presence / absence based on the presence / absence of the key 8 is also incorporated in the notification device 6. 1
Reference numeral 7 denotes the above-mentioned push button switch for emergency call. By pressing this, the notification device 6 notifies a predetermined notification destination by telephone, sounds an outdoor buzzer, or flashes an outdoor lamp to notify the user. In this embodiment, the determination of the safety of the resident can be made as shown in the block diagram of FIG.

[0065]

Since the safety judging device of the present invention is constituted as described above, it is useful for preventing lonely death in the field of welfare for the elderly and can be easily installed in existing apartment houses or detached houses. In addition, since sensors and the like can be arranged indoors, wiring work is easy.

According to the second aspect of the present invention, it is possible to prevent a delay in finding when a occupant falls down while air conditioning is on.

According to the third aspect of the present invention, it is possible to reliably detect an abnormality even when the incident light from a window is suddenly changed by an airplane or the like in a state where the occupant has fallen.

According to the fifth aspect of the present invention, it is possible to realize a safety determination device which can cope with a resident who does not keep the place where the key is placed.

According to the invention of claim 6, there is an advantage that it can be easily installed even in a place where wiring work is difficult.

According to the seventh and eighth aspects of the present invention, by connecting the safety judging device of the present invention to an existing notifying device, a safety judging device with less malfunction and high reliability can be constituted.

Further, according to the thirteenth aspect of the present invention, there is an advantage that the shape of the safety judging device is reduced in size, and it is easy to mount the device on a wall or the like. According to the fourteenth aspect of the present invention, there is an advantage that the entire notification device including the safety determination device is reduced in size and is easily installed.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an entire first embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a change in brightness and temperature during one day when a resident is living fine according to the present invention.

FIG. 3 is a diagram showing an example of a change in brightness and temperature when a resident falls down halfway according to the present invention.

FIG. 4 is a schematic diagram showing the entirety of a second embodiment of the present invention.

FIG. 5 is a schematic diagram showing an entire third embodiment of the present invention.

FIG. 6 is a diagram showing a mode of natural change in indoor brightness during one day.

FIG. 7 is a schematic diagram showing the entirety of Embodiment 4 of the present invention.

FIG. 8 is a schematic view showing an entire embodiment 5 of the present invention.

FIG. 9 is a block diagram of the embodiment of FIG.

FIG. 10 is a schematic diagram showing the entirety of a sixth embodiment of the present invention.

FIG. 11 is a perspective view schematically showing the whole of a seventh embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Safety determination device 2 Optical sensor 3 Temperature sensor 4, 4A, 4B, 4C Means for determining safety 5, 11 Wireless 6, 6A, 6B Notification device 7, 7B Presence / absence determination device 8 Entrance (room) key 9 Key holder 10 Key box 14, 15 Wired 16 Safety judgment means 18 Safety judgment device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G08B 21/22 G08B 21/22 25/00 510 25/00 510D 510H 25/08 25/08 A 25/10 25/10 DF term (reference) 5C086 AA05 AA22 CA12 CA30 CB16 CB22 DA01 DA08 FA02 FA12 5C087 AA02 AA03 AA11 AA23 AA32 AA42 DD03 DD24 DD49 EE07 EE18 FF30 GG37

Claims (14)

[Claims] 1. A system for determining the safety of a resident, comprising: a presence / absence determination device based on the presence or absence of a key; and means for determining the safety of a resident based on a change in brightness and / or a change in temperature. A safety device which is connected to the means and the presence / absence determination device wirelessly or by wire and outputs a signal to the outside. 2. A system for judging the safety of a resident, comprising: a presence / absence determination device for detecting presence / absence of an entrance key in a predetermined key box and outputting a presence / absence electric signal; An optical sensor that detects the brightness of the optical sensor and outputs an electrical signal; and receives an electrical signal from the optical sensor and an electrical signal from the presence / absence determination device, and a temporal change in brightness by the optical sensor is equal to or less than a certain value. Safety determination means for determining that an abnormality has occurred when a presence signal from the presence / absence determination device continues for a predetermined time or more and for the duration, and issuing an alarm or notification. A safety determination device characterized by the following. 3. A system for judging the safety of a resident, comprising: a presence / absence determination device for detecting whether an entrance key is present in a predetermined key box and outputting a presence / absence electric signal; A temperature sensor that detects the temperature of the sensor and outputs an electric signal; and receives the electric signal from the temperature sensor and the electric signal from the presence / absence determination device, and the temporal change of the room temperature by the temperature sensor is equal to or less than a certain value. Safety determination means for determining that an abnormality has occurred when the presence / absence signal from the presence / absence determination device has continued for a predetermined time or more and the presence / absence determination device has continued for the duration. A safety determination device characterized by the following. 4. A system for judging the safety of a resident, comprising: a presence / absence determination device for detecting whether or not an entrance key is present in a predetermined key box and outputting a presence / absence electric signal; An optical sensor that detects the brightness of the room and outputs an electrical signal; a temperature sensor that detects the temperature in the living room and outputs an electrical signal; The change is less than or equal to a certain time and continues for a certain time or more, and the temporal change of the room temperature by the temperature sensor is less than or equal to a certain time and continues for a certain time or more. A safety determining device for determining that the signal is abnormal when the occupancy signal continues, and issuing a warning or notification. 5. A system for judging the safety of a resident, comprising: an optical sensor for detecting the brightness of a living room and outputting an electric signal; a temperature sensor for detecting a temperature of the living room and outputting an electric signal; Receiving the electric signal from the optical sensor and the electric signal from the temperature sensor, the temporal change of the brightness by the optical sensor is not more than a constant for a certain period of time, and the temporal change of the room temperature by the temperature sensor is constant. A safety judging device comprising: safety judging means for judging an abnormality and issuing a warning or notification when the following is continued for a predetermined time or more. 6. A transmission path between the presence / absence determination device and the safety determination means, a transmission path between the optical sensor and the safety determination means, or a transmission path between the temperature sensor and the safety determination means. 6. The safety determination device according to claim 2, wherein at least one transmission line is constituted by a wireless transmission line. 7. A presence / absence determination device that determines presence / absence based on the presence / absence of a key, and determines the safety of a resident based on a change in brightness, and a presence / absence signal from the presence / absence determination device is provided. And a means for judging the safety of the resident that outputs an abnormal signal when the occupant's safety judgment based on the change in brightness is negative. 8. A presence / absence determination device that determines presence / absence based on the presence / absence of a key and outputs a presence / absence signal, and a brightness change in a living room which is detected by an optical sensor and a temporal change in brightness is constant. The following is continued for more than a certain time and
Means for outputting an abnormal signal when the absence determination device outputs an occupancy signal. 9. The safety judgment according to claim 1, further comprising a presence / absence determination device that operates in response to a resident returning home or going out, instead of the presence / absence determination device based on the presence / absence of a key. apparatus. 10. Instead of a presence / absence determination device that detects whether or not an entrance key is present in a predetermined key box and outputs a presence / absence electric signal, it responds to a resident returning home or going out. 7. The safety determination device according to claim 2, further comprising a presence / absence determination device that operates to output a presence / absence electric signal. 11. A presence / absence determination device that determines presence / absence in response to a resident returning home or going out, instead of a presence / absence determination device that determines presence / absence based on presence / absence of a key. The safety determination device according to claim 7, characterized in that: 12. Instead of a presence / absence determination device that determines presence / absence based on the presence / absence of a key and outputs a presence / absence signal, a presence / absence determination is performed in response to a resident returning home or going out. The safety determination device according to claim 8, further comprising a presence / absence determination device that outputs a signal. 13. A means for determining the safety of a resident based on a change in brightness and a means for determining presence / absence based on the presence / absence of a key.
A safety determination device characterized by integrally comprising an absence determination device. 14. A means for determining the safety of a resident based on a change in brightness and a means for determining presence / absence based on the presence / absence of a key.
A notification device comprising a built-in absence determination device.