JP2002150454A - Monitoring device for loitering person - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm a range capable of receiving high-frequency electric waves from a transmitter by a receiver for a short time, at installing of the receiver. SOLUTION: The loitering person monitoring device comprises a transmitter 1 owned by a loitering person and intermittently transmitting high-frequency electric waves; and a receiver 2 receiving the high-frequency electric waves and giving out an accident warning when it does not receive the high frequency electric wave for a constant first time T1 or more. When a range, capable of receiving the high-frequency electric waves from the transmitter by the receiver, is confirmed, an energization indication lamp 27 which is lighted off for a short time, each time the receiver receives the high-frequency electric waves transmitted from the transmitter is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wandering person monitoring apparatus, and more particularly to a transmitter possessed by a wandering person and intermittently transmitting a high frequency wave, and receiving a high frequency wave and not receiving the high frequency wave for a certain period of time. The present invention relates to a wandering person monitoring device provided with a receiver that issues a notification when a warning occurs.

[0002]

2. Description of the Related Art Recently, a wandering person monitoring device has been developed which monitors whether or not a wandering person is in a predetermined area of a house (dwelling unit) or a nursing facility, and notifies the caregiver of the absence of the wandering person. Have been.

FIG. 3 shows a block diagram of this type of wandering person monitoring device. In FIG. 1, the conventional wanderer monitoring apparatus includes a transmitter 100 carried by the wanderer and a receiver 200 installed on the caregiver side.

A receiver 200 receives a high-frequency wave transmitted from the transmitter 100 and outputs a signal, and detects the presence or absence of an area monitoring signal transmitted from the high-frequency reception circuit 210 to detect a wandering person. A control circuit 220 that determines whether or not a person is present in a predetermined area, and a notification unit 230 that notifies a caregiver that the wandering person is absent in the predetermined area based on the control of the control circuit 220. , Based on the control of the control circuit 220, an out-of-area notification indicator light 240 indicating that the wandering person is absent in the predetermined area.
When a caregiver goes out with a wanderer,
A monitoring release switch 250 for sending a signal for stopping the wandering monitoring state of the receiver 200 to the control circuit 220, and a power supply circuit 260 for supplying power to each circuit of the receiver 200
And an energization indicator 270 that is always lit when the receiver 200 is energized.

In the wandering person monitoring device having such a configuration, the transmitter 100 intermittently transmits high-frequency radio waves.

When a wandering person is present in a predetermined area, the high-frequency radio wave intermittently transmitted from the transmitter 100 is received by the high-frequency reception circuit 210 of the receiver 200, 210 outputs an area monitoring signal. Then, when the control circuit 220 detects the area monitoring signal, the control circuit 220 determines that the wandering person is present in the predetermined area, and performs control to maintain the monitoring state of the wandering person.

On the other hand, when the wanderer is absent in the predetermined area, the high-frequency wave intermittently transmitted from the transmitter 100 is not received by the high-frequency receiving circuit 210 of the receiver 200. Means that the area monitoring signal is not sent from the high frequency receiving circuit 210 to the control circuit 220. Then, the control circuit 220 determines that the wandering person is absent in the predetermined area, and the control circuit 220
Sends an absent notification signal to the notification unit 230, whereby a sound is emitted from the loudspeaker constituting the notification unit 230, and the caregiver is notified that the wandering person is absent in the predetermined area. You.

On the other hand, when the caregiver goes out with a wandering person, the caregiver switches the switching contact p1 of the monitoring release switch 250 to the normally open contact p2, and sends a monitoring release signal to the control circuit 220. I do. When the control circuit 220 detects the monitoring release signal, the control circuit 220
It is determined that the wandering person is near the caregiver, and the control circuit 22
From 0, the monitoring release control signal is sent to the out-of-area notification indicator light 240, whereby the out-of-area notification indicator light 240 is turned off, and the monitoring state of the wandering person is stopped.

By the way, in the wandering person monitoring device having such a configuration, when the receiver 2 is installed, the transmitter 1
It is necessary to confirm the range in which high-frequency radio waves can be received from, but as a method of confirming such a radio wave reception range, bring the transmitter 100 constituting the wandering person monitoring device out of the area, and after a certain period of time, A method of sounding from a loud speaker of the alarm unit 230 is known.

[0010]

However, in such a method for confirming the radio wave reception range, if the time of the alarm from the alarm unit is lengthened, it takes a long time to set the receiver.
Contrary to this, if the time period of the alarm from the alarming section is shortened, the number of alarms increases, so that there is a problem that noise may be caused on the contrary and an alarm may be erroneously generated.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a wandering person monitoring device capable of checking a radio wave reception range in a short time when installing a receiver. I do.

[0012]

In order to achieve the above object, a wandering person monitoring apparatus according to the present invention comprises: a transmitter possessed by a wandering person and intermittently transmitting a high frequency radio wave; In a wandering person monitoring device including a receiver that issues a notification when a radio wave is not received for a predetermined first time or more, a transmitter is required to confirm a range in which a high frequency radio wave can be received from the transmitter. Each time the receiver receives the high-frequency radio wave transmitted from the receiver, the power-supply indicator that turns off the light for a short time is provided to facilitate the confirmation.

[0013] Further, the wandering person monitoring device of the present invention is characterized in that a switch is provided for stopping control of turning off an energization indicator of the receiver.

Further, the wandering person monitoring device of the present invention outputs a reset signal when the power supply of a power supply circuit for supplying power to the receiver is cut off and thereafter recovers. Is provided with a power reset circuit for restoring the control of turning off the power indicator.

According to these wandering person monitoring devices of the present invention, the energization indicator is turned off for a short time each time a high-frequency radio wave transmitted from the transmitter is received by the receiver. It can be confirmed in a short time.

Further, the wandering person monitoring device of the present invention includes a transmitter possessed by the wanderer and intermittently transmitting a high-frequency wave, receiving the high-frequency wave, and not receiving the high-frequency wave for a predetermined first time or more. A wanderer who can be set to emit a signal in a second time shorter than a fixed first time when confirming the range in which high-frequency radio waves can be received from the transmitter. In the monitoring device, when the second time is set in the above setting, the out-of-area notification that lights up for a short time in a third time shorter than the set short time and flashes after the second time to issue an alarm. It is characterized by having an indicator light.

According to the wandering person monitoring device of the present invention, since the out-of-area notification indicator light which lights up in a short time and flashes after a lapse of a predetermined time is provided, the present invention is more effective than the above-mentioned invention.
The receivable range of the high-frequency radio wave can be confirmed in a shorter time.

Further, the wandering person monitoring apparatus of the present invention is provided with a monitoring canceling switch for canceling the monitoring so that the high frequency radio wave from the transmitter is not received by the receiver so that the receiver does not emit the alarm. It is provided that an out-of-area notification indicator light that lights up for a short time every time the third time elapses when the high-frequency radio wave from the transmitter is not received while the alarm is set to be issued by time and the monitoring is cancelled. Features.

According to the wandering person monitoring apparatus of the present invention, since the outside area notification lamp receiver is turned on for a short time each time the third time elapses when the high frequency radio wave from the transmitter is not received. It is possible to confirm the receivable range of the high-frequency radio wave in a shorter time than the above-described invention,
Further, since no ringing sound is issued from the alarming unit, the setting operator can check the reception range of the high-frequency radio wave without being affected by the noise.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a wanderer monitoring apparatus according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a wanderer monitoring apparatus according to the present invention. In the figure,
The wandering person monitoring device according to the present invention provides a transmitter 1 possessed by a wandering person.
And a receiver 2 installed on the caregiver side.

The receiver 2 receives a high-frequency wave transmitted from the transmitter 1 and outputs a signal.
And a control circuit 22 that detects the presence or absence of an area monitoring signal transmitted from the high-frequency receiving circuit 21 and determines whether or not the wandering person is present in the area. An alarming unit 23 for notifying the caregiver that the person is absent in the predetermined area; an out-of-area notification indicator light 24 for indicating that the wanderer is absent in the predetermined area based on the control of the control circuit 22; In the case where the caregiver goes out with a wandering person, a monitoring release switch SW2 that sends a signal for stopping the wandering monitoring state of the receiver 2 to the control circuit 22, and each circuit of the receiver 2 When the power supply circuit 26 for supplying power and the receiver 2 are energized, they are always lit, and the transmitter 1
Every time the receiver 2 receives the high-frequency radio wave transmitted from
A power indicator lamp 27 that is turned off for a short time, a transistor Tr that controls the power indicator lamp 27 to be turned on and off for a short time,
Switch SW1 for stopping the turning-off control of the power indicator lamp 27
When the power supply circuit 26 is shut off and then returns,
A power reset circuit 25 for outputting a reset signal for stopping the light-off control to the switch SW1, and first to third timer circuits 28a to 28c which are turned on when a predetermined time has elapsed;
And first and second OR circuits OR1 and OR2, and a setting switch SW3 for switching the first to third timer circuits 28a to 28c in an interlocked manner.

Here, the high-frequency receiving circuit 21 is connected to a control circuit 22. The control circuit 22 is connected to the alarm unit 23 and the input side of a second OR circuit OR2, respectively. An out-of-area notification indicator light 24 is connected to the output side of the circuit OR2.

The control circuit 22 includes a transistor Tr
The collector of the transistor Tr is connected to the conduction indicator 27, and the emitter is grounded. On the other hand, the power supply circuit 26
5 is connected to the switch SW1.
The normally open contact a1 (hereinafter, referred to as “first normally opened contact a1”) is connected to the energization indicator 27, and the switching contact b1 (hereinafter, referred to as “first switching contact b1”) is grounded. I have.

Further, the control circuit 22 inputs one make contact c1 (hereinafter, referred to as "first make contact c1") of the monitoring release switch SW2, and inputs to the first and second timer circuits 28a and 28b. Side and first OR circuit O
The output side of the first timer circuit 28a is connected to the input side of R1 and one normally closed contact d1 of the setting switch SW3.
(Hereinafter referred to as “first normally closed contact d1”), the output side of the second timer circuit 28b is connected to one normally open contact a2 of the setting switch SW3 (hereinafter “second normally open contact a2”). ), The output side of the first OR circuit OR1 is connected to the third timer circuit 28c, and the output side of the third timer circuit 28c is connected to the setting switch SW.
3 normally open contact a3 (hereinafter referred to as "third normally open contact a3").
3 ". ) And the input side of the first OR circuit OR1. Further, one switching contact b2 of the setting switch SW3 (hereinafter, referred to as “second switching contact b2”).
Is the other make contact c2 of the monitor release switch SW2
(Hereinafter, referred to as “second make contact c2”), and the other switching contact b3 (hereinafter, referred to as “third switching contact b3”) is connected to the input side of the second OR circuit OR2. ing.

Next, the operation of the wanderer monitoring apparatus according to the present invention will be described. First, the operation of the wanderer monitoring apparatus in a normal use state will be described.
First, when the receiver 2 is energized, the energization indicator 27 is always on, and is set to be turned off for a short time in conjunction with the on / off of the transistor Tr. Further, the monitoring release switch SW2 is set to the ON state, and the first timer circuit 28a operates for a certain first time T1, for example,
After 32 seconds, a time-over signal is sent to the control circuit 22.
Output to

On the other hand, as shown in FIG. 2A, high-frequency radio waves are intermittently transmitted from the transmitter 1, for example, at intervals of 4 seconds. 2 (b), the high-frequency receiving circuit 21 of the receiver 2
And an area monitoring signal is output from the high frequency receiving circuit 21. Then, when the control circuit 22 detects the area monitoring signal, the control circuit 22 determines that the transmitter 1 is present in the predetermined area, and outputs a light-off control signal from the control circuit 22. By the light-off control signal, the transistor T
r indicates an off state, and as shown in FIG. 2C, the energization indicator 27 is turned off momentarily (hereinafter, referred to as "short-time turning off").
I do.

Here, the high-frequency receiving circuit 21 of the receiver 2
However, if the high-frequency radio wave from the transmitter 1 is not received even after a certain first time T1 (for example, 32 seconds) has elapsed, the first timer circuit 28a outputs a time-over signal to the control circuit 22. Then, the control circuit 22
Thus, it is determined that the transmitter 1 is not present in the predetermined area, and the absence notification signal is sent from the control circuit 22 to the notification unit 23.
As a result, as shown in FIG. 2D, a ringing sound is emitted from the loudspeaker constituting the alerting section 23, and the setting operator is informed that the transmitter 1 is not present in the predetermined area. Will be notified. When the first reset signal R1 is sent from the control circuit 22 to the first timer circuit 28a due to the reception of the high-frequency radio wave, the first timer circuit 28a is reset to zero by the first reset signal R1. Then, time counting is started again.

In the wandering person monitoring device provided with the above-mentioned energization indicator lamp 27, the reception range of the high-frequency radio wave can be confirmed by confirming that the energization indicator lamp 27 is turned off for a short time.

Next, the first operation is performed by the switching operation of the switch SW1.
When the normally open contact a1 is closed, the energization indicator lamp 27 is always lit regardless of whether the transistor Tr is on or off.
After the power supply of the power supply circuit 26 is cut off,
After returning from step 6, a reset signal is output from the power reset circuit 25, and this reset signal is input to the switch SW1. Thereby, the first normally open contact a of the switch SW1
1 is opened, and by the opening of the first normally open contact a1,
The energization indicator 27 is turned on / off for a short time in conjunction with the on / off operation of the transistor Tr.

In the wandering person monitoring device provided with the switch SW1, the power indicator 27 is provided after the receiver is installed.
The user who feels that turning off the light for a short time is uncomfortable,
This discomfort can be eliminated only by switching the number 1. Further, in the wandering person monitoring device including the power reset circuit 25, the installation position of the receiver 2 is set in a state where the user forgets the switching operation of the switch SW1 and maintains the stop state of the power-on indicator lamp 27 for a short time. Is changed, the operation state in which the power-on indicator 27 is turned off for a short time is restored, so that the user can automatically confirm that the reception range of the receiver 2 has changed.

Next, the operation of the wanderer monitoring device in a so-called test state for confirming the operation of the receiver when the transmitter is not in the predetermined area will be described.

First, the monitor release switch SW2 is turned on, and the setting switch SW3 is operated to close the second normally open contact a2 and the third normally open contact a3. As a result, the second timer circuit 28b outputs a time-over signal to the control circuit 22 after a lapse of the second time T2, for example, 16 seconds, and the third timer circuit 28c
After a lapse of a third time T3, for example, 8 seconds, a time-over signal is output to the control circuit 22.

In the wandering person monitoring device set as described above, even if the third time T3 (for example, 8 seconds) elapses,
Since no high-frequency radio wave is received, the third timer circuit 28
2C, a time-over signal is transmitted as a test display signal to the out-of-area notification indicator light 24.
As shown in (f), the out-of-area notification indicator 24 lights up momentarily (hereinafter, referred to as "short-time lighting"). Also, the second
After the elapse of the time T2, the out-of-area notification indicator light 24 blinks. Further, at the same time, a test display signal is sent from the control circuit 22 to the alarm unit 23, and as a result, a ringing sound is emitted from the loudspeaker constituting the alarm unit 23 as shown in FIG. The setting operator is notified that the transmitter 1 is not within the predetermined area. Note that the second and third reset signals R2 and R3 are sent from the control circuit 22 to the second and third timer circuits 28b and 28c by receiving the high frequency radio wave.
Is transmitted, the second and third reset signals R2, R2
By means of 3, the second and third timer circuits 28b and 28c are each reset to zero, and time counting starts again.

In the wanderer monitoring apparatus in the test state described above, the second time T2 shorter than the first time T1 is used.
The alarm can be confirmed at the same time, and the short-time turning-on of the out-of-area notification indicator 24 can be confirmed at the third time T3 shorter than the second time T2. Thus, the reception range of the high-frequency radio wave can be confirmed in a much shorter time.

Finally, the operation of the wandering person monitoring device in the monitoring canceled state will be described.

First, the monitor release switch SW2 is turned off to set the monitor release mode. Next, the setting switch S
By operating W3, the second normally open contact a2 and the third normally open contact a3 are closed. Accordingly, the third timer circuit 28c outputs a time-over signal to the control circuit 22 after a lapse of a certain third time T3, for example, 8 seconds.
In this case, the second timer circuit 28b does not operate because the monitoring release switch SW2 is set to the off state.

In the wandering person monitoring device set as described above, the high frequency receiving circuit 21 of the receiver 2 does not receive the high frequency radio wave from the transmitter 1 even after the third time T3 has elapsed. A time-over signal is sent from the timer circuit 28c to the second OR circuit OR2 as a test display signal, and the first OR circuit O
Sent to R1. Then, a test display signal is input from the second OR circuit OR2 to the out-of-area notification indicator light 24, and the out-of-area notification indicator light 24 is turned on for a short time. In addition, a test display signal is output from the first OR circuit OR1. The third timer circuit 28c is input to the third timer circuit 28c.
Is reset to zero and time counting starts again. Thereby, as shown in FIG. 2 (g), the out-of-area notification indicator light 24 is turned on for a short time each time the third time T3 elapses. In this case, since the test display signal is not sent from the control circuit 22 to the alarm unit 23,
Will not be sounded from the loudspeaker constituting. The control circuit 22 receives the high-frequency radio wave.
To the second and third timer circuits 28b and 28c.
When the third reset signals R2 and R3 are transmitted, the second and third reset signals R2 and R3 cause the second and third reset signals R2 and R3.
Timer circuits 28b and 28c are reset to zero,
Start time counting again.

In the wandering person monitoring device in the above-mentioned monitoring released state, by confirming that the out-of-area notification indicator lamp 24 is turned on for a short time, the time T which is shorter than the second time T2 is checked.
In step 3, the reception range of the high-frequency radio wave can be confirmed. Further, since no sound is emitted from the alarm unit 23, the setting operator can check the reception range of the high-frequency radio wave without being affected by the noise.

[0040]

As is apparent from the above description, according to the wanderer monitoring apparatus of the present invention, it is possible to confirm the reception range of the high-frequency radio wave by confirming that the energizing indicator is turned off for a short time. In the wandering person monitoring device in the test mode state, the second time T shorter than the first time T1 is confirmed by confirming that the out-of-area notification indicator lights up for a short time.
In step 2, the reception range of the high-frequency radio wave can be confirmed. Further, in the wandering person monitoring device in the monitoring released state,
By confirming that the out-of-area notification indicator light is turned on for a short time, it is possible to confirm the receivable range of the high-frequency radio wave at a third time T3 shorter than the second time T2 and to be affected by noise. It is possible to confirm the receivable range of the high-frequency radio wave without any need.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a wandering person monitoring device according to the present invention.

2 (a) is a waveform diagram of a high-frequency wave transmitted from a transmitter according to the present invention, FIG. 2 (b) is a waveform diagram of a high-frequency wave received by a receiver according to the present invention, FIG. 2 (c) 2) is a waveform chart showing a short-time extinguishment state of the energization indicator lamp of the present invention, FIG. 2D is a waveform chart showing an alarming state of the alarming unit in a normal state of the receiver of the present invention, and FIG. 2) is a waveform diagram showing the alarm status of the alarm unit in the test state of the receiver of the present invention, FIG. 2 (f) is a waveform diagram showing a short-time illumination status of the out-of-area notification indicator lamp of the present invention, and FIG. (G) is a waveform diagram of a signal indicating a short-time lighting state of the out-of-area notification indicator light of the present invention.

FIG. 3 is a block diagram of a conventional wandering person monitoring device.

[Explanation of symbols]

 1 ... Transmitter 2 ... Receiver 24 ... Out-of-area notification indicator light 25 ... Power reset circuit 26 ... Power supply circuit 27 ... Power indicator SW1 ... Switch SW2 ... Monitoring release switch T1 ... Constant A second time shorter than T1... A second time T3... A third time shorter than T2

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Tsunekawa 2-18-18 Jinnocho, Atsuta-ku, Nagoya City, Aichi Prefecture Inside (72) Inventor Masahiko Takeda 2--18, Jinocho, Atsuta-ku, Nagoya City, Aichi Prefecture Aiphone F term in the company (reference)

Claims (5)

[Claims] 1. A transmitter (1) carried by a wandering person and intermittently transmitting a high-frequency radio wave, receiving the high-frequency radio wave, and not receiving the high-frequency radio wave for a predetermined first time (T1) or more. A wandering person monitoring device comprising a receiver (2) that issues a notification when the high frequency radio wave transmitted from the transmitter is checked by the receiver to confirm a range in which the high frequency radio wave from the transmitter can be received. A wandering person monitoring device, comprising: a power-on indicator (27) that is turned off for a short time each time a radio wave is received by the receiver, thereby facilitating the confirmation. 2. A switch (SW1) for stopping control of turning off a power indicator of said receiver.
The wanderer monitoring device described in 1. 3. A power supply circuit (2) for supplying power to the receiver.
A power supply reset circuit (25) for outputting a reset signal when the power supply of 6) is interrupted and thereafter recovering, and for returning the switch to the extinguishing control of the energization indicator by receiving the reset signal. The wandering person monitoring device according to claim 2, comprising: 4. A transmitter (1) carried by a loitering person and intermittently transmitting a high-frequency radio wave, receiving the high-frequency radio wave, and not receiving the high-frequency radio wave for a predetermined first time (T1) or more. A second time (T) shorter than the predetermined first time when confirming the range in which the high-frequency wave from the transmitter can be received.
In the wandering person monitoring device that can be set to emit in 2), when the second time is set in the setting, a short time (T3) shorter than the set short time is used. A wandering person monitoring device, comprising: an out-of-area notification indicator light (24) that lights up and flashes after the second time to issue an alarm. 5. A monitor release switch (SW2) for setting a monitor release so that a high frequency radio wave from the transmitter (1) is not received by the receiver (2) even if the receiver (2) stops receiving the radio wave. Outside area indicator light that is lit for a short time each time the third time period elapses when the high-frequency radio wave from the transmitter is not received while the alarm is set to emit at time 2 and the monitoring is cancelled. The wandering person monitoring device according to claim 4, further comprising (24).