JP2001216586A - Poriomania person monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the complexity of wirings at the time of construction or the like by unnecessitating wirings between a receiver and a sub-receiver. SOLUTION: This device is composed of a transmitter 1 possessed by a poriomania person and transmitting radio wave, the receiver 2 for receiving the radio wave and judging whether the poriomania person exists in a prescribed area, and the sub-receiver 3 having a high frequency receiving circuit 20 for receiving the radio wave at a place different from the receiver. The sub-receiver is provided with a control circuit 21 for outputting a transmission control signal when a signal from the high frequency receiving circuit receiving the radio wave transmitted from the transmitter is inputted, a high frequency transmitting circuit 22 for transmitting the same radio as that transmitted from the transmitter a fixed time after the transmission finishing time of the transmitter with a transmission control signal from the control circuit to the receiver and a switch part 23 for cutting off the output of the high frequency wave receiving circuit under the control of the control circuit in the transmission of the high frequency transmitting circuit. The sub-receiver is installed in a range where transmitted radio wave from the sub-receiver reaches the receiver.

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 device, and more particularly to transmitting a radio wave from a transmitter owned by a wandering person and receiving the radio wave to monitor whether or not the wandering person is within a predetermined area. The present invention relates to a wandering person monitoring device.

[0002]

2. Description of the Related Art Conventionally, a wanderer who monitors whether or not a wandering person is in a predetermined area in a house (dwelling unit), a nursing care facility, or the like, that is, whether the person is in the predetermined area or not. A wandering person monitoring device having the configuration shown in the block diagram of FIG. 2 has been proposed as a person monitoring device.

The wanderer monitoring device shown in FIG. 1 includes a transmitter 51 that intermittently transmits a radio wave (hereinafter, referred to as a high-frequency radio wave) owned by the wanderer and free from interference with electromagnetic waves such as external noise. A receiver 52 that receives the intermittently transmitted high-frequency radio wave and determines whether a wanderer is present or absent within a predetermined area, and a line connected to the receiver 52 via two lines, A sub-receiver including a high-frequency receiving circuit (hereinafter referred to as a sub-high-frequency receiving circuit) 70 for receiving the high-frequency radio wave intermittently transmitted from the transmitter 51 at 52 or when the radio-frequency radio wave cannot be received normally. Machine 53.

The receiver 52 includes a high-frequency receiving circuit 60 for receiving a high-frequency radio wave intermittently transmitted from the transmitter 51.
A power supply circuit 61 for supplying an operation power supply for the high-frequency reception circuit 60 or the sub-high-frequency reception circuit 70 forming the sub-receiver 53 and an operation power supply for a control circuit 63 to be described later. A power supply switching section 62 for forming a power supply line from the circuit 61 to the high-frequency receiving circuit 60 or a power supply line from the power supply circuit 61 to the sub-high-frequency receiving circuit 70 forming the sub-receiver 53; The presence / absence of a signal (hereinafter, referred to as a reception confirmation signal) from the receiving circuit 60 is monitored. If the input of the signal cannot be detected for a certain period of time or more, the power supply switching unit 62 is controlled and the high-frequency receiving circuit 60 and If the high-frequency radio wave cannot be received by the sub-high-frequency receiving circuit 70 constituting the sub-receiver 53 or the radio wave cannot be received normally, the wandering person will A control circuit 63 is judged to be absent in the A, the control of the control circuit 63, wandering person is provided with a notification unit 64 for notifying absent within a predetermined area.

[0005] In the monitoring state of the wanderer monitoring apparatus configured as described above, that is, monitoring whether the wanderer is present in the predetermined area or not,
Power from a power supply circuit 61 forming a receiver 52 is supplied to a high-frequency reception circuit 60 and a control circuit 63 via a power supply switching unit 62, and the circuits 60 and 63 become active. The sub-high frequency receiving circuit 70 forming 53 is inactive.

Here, a high-frequency radio wave intermittently transmitted from the transmitter 51 is transmitted to a high-frequency reception circuit 60 forming a receiver 52.
, The high-frequency receiving circuit 60 outputs a reception confirmation signal to the control circuit 63. The control circuit 63 that has detected the reception confirmation signal determines that the wandering person is present in the predetermined area, and maintains the monitoring state of the wandering person monitoring device.

On the other hand, if the high-frequency radio wave intermittently transmitted from the transmitter 51 cannot be received by the high-frequency receiving circuit 60 constituting the receiver 52 or cannot be received normally, the reception confirmation from the high-frequency receiving circuit 60 to the control circuit 63 is performed. No signal is output. The control circuit 63, which cannot detect the reception confirmation signal for a certain period of time or more, controls the power supply switching unit 62 to connect the power supply line from the power supply circuit 61 to the high-frequency reception circuit 60 and the sub-high-frequency reception from the power supply circuit 61 to the sub-receiver 53. By switching to the power supply line to the circuit 70, the high-frequency receiving circuit 60 is made inactive and the sub-high-frequency receiving circuit 70 is made active.

When the high-frequency radio wave intermittently transmitted from the transmitter 51 is normally received by the sub-high-frequency receiving circuit 70 forming the sub-receiver 53, the sub-high-frequency receiving circuit 70 forms the receiver 52. The sub reception confirmation signal is output to the control circuit 63. The control circuit 63 that has detected the sub reception confirmation signal determines that the wandering person is present in the predetermined area, and maintains the monitoring state of the wandering person monitoring device.

However, the high-frequency radio wave intermittently transmitted from the transmitter 51 cannot be received by the high-frequency receiving circuit 60 constituting the receiver 52 or cannot be received normally, and is activated by the power supply from the power supply circuit 61. The high-frequency radio wave cannot be received or cannot be received normally by the sub-high-frequency receiving circuit 70 forming the sub-receiver 53, and the reception confirmation signal from the high-frequency receiving circuit 60 and the sub-high-frequency receiving circuit 7
The control circuit 63 that cannot detect the sub-reception acknowledgment signal from 0 for a certain period of time determines that the wandering person is absent in the predetermined area, and outputs an absence control signal for causing the notification unit 64 to notify that effect. . Notification unit 64 that has detected an absence control signal
Informs the presence of the wandering person in the predetermined area to the vicinity of the receiver via a means such as sounding a sound, displaying an image, and turning on a light.

[0010]

However, in the conventional wandering person monitoring device, the receiver 52 and the sub receiver 53 are connected to each other.
It is necessary to connect the lines via a line, and there is a problem that the wandering person monitoring device is complicated at the time of construction or the like.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned difficulties, and there is no need for wiring between the receiver and the sub-receiver. The purpose is to provide.

[0012]

In order to achieve the above object, a wanderer monitoring apparatus according to the present invention comprises a transmitter which is owned by a wanderer and transmits radio waves, and a transmitter which receives radio waves and which is located within a predetermined area. A wandering person monitoring device configured by a receiver that determines whether or not the user is at a location, and a sub receiver having a high frequency receiving circuit that receives radio waves at a different location from the receiver. A control circuit that outputs a transmission control signal when a signal is received from a high-frequency receiving circuit that receives radio waves transmitted from the transmitter, and a transmission control signal from the control circuit transmits a signal after a fixed time from the end of transmission by the transmitter. A high-frequency transmission circuit for transmitting the same radio wave as the radio wave transmitted from the receiver to the receiver,
A switch for cutting off the output of the high-frequency receiving circuit under the control of the control circuit when transmitting the high-frequency transmitting circuit, and the sub-receiver is installed in a range where the transmission radio wave from the sub-receiver reaches the receiver.

In such a wandering person monitoring apparatus, a radio wave (high-frequency radio wave) intermittently transmitted from the transmitter is normally received by the high-frequency receiving circuit serving as the sub receiver, and the signal from the high-frequency receiving circuit is detected. After a certain period of time from the end of transmission by the transmitter, the control circuit transmits the same radio wave (sub-high-frequency radio wave) as the high-frequency radio wave from the high-frequency transmission circuit to the receiver, opens the switch section, and controls the radio-frequency reception circuit. Disconnect the output line to the circuit. Depending on whether the receiver can normally receive the sub-high-frequency radio wave transmitted from the sub-receiver, the wandering person can not receive the high-frequency radio wave intermittently transmitted from the transmitter, or even if it cannot receive it normally. It is possible to determine whether the user is present in a predetermined area in a house (dwelling unit), a nursing home, or the like, or is absent.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment to which a wanderer monitoring apparatus according to the present invention is applied will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a wandering person monitoring apparatus according to an embodiment of the present invention. The radio wave is owned by the wandering person and has no interference with electromagnetic waves such as external noise (hereinafter referred to as high-frequency waves). ), And a high-frequency radio wave intermittently transmitted from the transmitter 1 and a sub-high-frequency radio wave transmitted from the sub-receiver 3, which will be described later, and composed of the same radio wave as the high-frequency radio wave. A receiver 2 for determining whether or not the wandering person is in a predetermined area in a house (dwelling unit), a nursing facility, or the like, that is, whether or not the person is present or absent in the predetermined area; Is installed in a location different from the installation location, receives a high-frequency radio wave intermittently transmitted from the transmitter 1, and transmits a sub-high-frequency radio wave after a lapse of a predetermined time from the end of transmission (intermittent transmission) of the transmitter 2.
And a sub-receiver 3 for transmitting the data. The installation location of the sub-receiver 3 is set within a range where the sub-high-frequency wave transmitted from the sub-receiver reaches the receiver 2.

The receiver 2 includes a high-frequency receiving circuit 10 for receiving a high-frequency radio wave intermittently transmitted from the transmitter 1 and a high-frequency radio wave transmitted from the sub-receiver 3, and a high-frequency radio wave or a sub-high-frequency radio wave. The presence or absence of the input of the received signal from the high-frequency receiving circuit 10 (hereinafter, referred to as a reception confirmation signal) is monitored. If the input of the signal cannot be detected for a certain period of time or more, the wandering person is not present in the predetermined area. By the control circuit 11 that determines that there is, and the control of the control circuit 11,
A notification unit 12 for notifying that a wandering person is absent in a predetermined area, and a power supply circuit 13 for supplying operating power of the high-frequency reception circuit 10 and the control circuit 11 are provided.

The sub-receiver 3 has a high-frequency receiving circuit (hereinafter, referred to as a high-frequency receiving circuit) that receives a high-frequency radio wave intermittently transmitted from the transmitter 1.
A control circuit (hereinafter, referred to as a sub-control circuit) 21 for detecting a signal (hereinafter, referred to as a sub-reception acknowledgment signal) from the sub-high-frequency reception circuit 20 from which the high-frequency radio wave has been received; , A signal from the sub control circuit 21 that has detected the sub reception confirmation signal (hereinafter, referred to as a transmission control signal)
After a lapse of a predetermined time from the end of the transmission (intermittent transmission) of the transmitter 1, a high-frequency transmission circuit (hereinafter, referred to as a sub-high-frequency transmission circuit) 22 for transmitting a sub-high-frequency radio wave composed of the same radio wave as the high-frequency radio wave, and a sub-reception A signal from the sub control circuit 21 that has detected the confirmation signal (hereinafter, referred to as a switching control signal)
A switch section 23 for cutting an output line from the sub-high frequency receiving circuit 20 to the sub-control circuit 21;
0, and a splitter 24 for distributing the high-frequency electric wave received at 0 and the sub-high-frequency electric wave transmitted from the sub-high-frequency transmission circuit 22; Each power supply circuit (hereinafter referred to as
25).

The operation of the wanderer monitoring apparatus according to one embodiment of the present invention will be described below.

In the monitoring state of the wandering person monitoring device, that is, when monitoring whether the wandering person is present in the predetermined area or not, the power supply from the power supply circuit 13 forming the receiver 2 is provided. Is a high-frequency receiving circuit 10, a control circuit 1
1 and the respective circuits 10 and 11 become active. The power from the sub power supply circuit 25 forming the sub receiver 3 is supplied to the sub high frequency reception circuit 20, the sub control circuit 21, and the sub high frequency transmission circuit 22, respectively.
0, 21, and 22 are active.

Here, intermittent transmission from the transmitter 1, for example, 2
When the high-frequency wave transmitted in the second cycle is normally received by the high-frequency receiving circuit 10 forming the receiver 2, the high-frequency receiving circuit 10 outputs a reception confirmation signal to the control circuit 11.
The control circuit 11 that has detected the reception confirmation signal determines that the wandering person is present in the predetermined area, and maintains the monitoring state of the wandering person monitoring device.

On the other hand, if the high-frequency wave intermittently transmitted from the transmitter 1 cannot be received by the high-frequency receiving circuit 10 constituting the receiver 2 or cannot be received normally, the high-frequency receiving circuit 10 confirms the reception to the control circuit 11. No signal is output. In addition, the high-frequency electric wave intermittently transmitted from the transmitter 1 is transmitted to the sub-high-frequency receiving circuit 20 via the demultiplexer 24 forming the sub-receiver 3 within a certain time during which the control circuit 11 cannot detect the reception confirmation signal. When the signal is normally received, the sub-high frequency receiving circuit 20 outputs a sub-reception confirmation signal. The sub-control circuit 21, which has detected the sub-reception acknowledgment signal via the switch unit 23, closes the interference between the radio wave transmitted from the sub-high-frequency transmission circuit 22 and the high-frequency radio wave intermittently transmitted from the transmitter 1. A transmission control signal for preventing transmission is output after a fixed time, for example, 0.5 seconds, from the end of transmission (intermittent transmission) of the transmitter, and a switching control signal is output to the switch unit 23 to open the switch unit. Then, the output line from the sub-high frequency receiving circuit 20 to the sub-control circuit 21 is disconnected. Sub-high frequency transmission circuit 22 that has detected the transmission control signal
Transmits a sub-high-frequency radio wave composed of the same radio wave as the high-frequency radio wave intermittently transmitted from the transmitter 1 to the receiver 2 via the duplexer 24.

Here, when the sub-high-frequency wave transmitted from the sub-receiver 3 is normally received by the high-frequency receiving circuit 10 constituting the receiver 2, the high-frequency receiving circuit 10
1 to output a reception confirmation signal. The control circuit 11, which has detected the reception confirmation signal within a certain time, determines that the wandering person is present in the predetermined area, and maintains the monitoring state of the wandering person monitoring device.

However, the high-frequency wave transmitted intermittently from the transmitter 1 and the sub-high-frequency wave transmitted from the sub-receiver 3 are transmitted to the high-frequency reception circuit 10
The control circuit 11, which cannot receive or cannot receive normally, and cannot detect the reception confirmation signal from the high-frequency receiving circuit 10 for a predetermined time or more, determines that the wandering person is absent in the predetermined area, and reports the fact. The unit 12 outputs an absence control signal for notification. The notification unit 12 that has detected the absence control signal notifies the user that the wandering person is absent in the predetermined area through means such as sounding of a sound, display of an image, lighting of light, etc., in the vicinity of the vicinity where the receiver is installed. Notify.

When the wanderer returns to the predetermined area while the wanderer returns to the predetermined area while notifying that the wanderer is absent in the predetermined area, the transmitter 1 intermittently transmits the information. The incoming high-frequency radio wave or the sub-high-frequency radio wave transmitted from the sub-receiver 3 is normally received by the high-frequency receiving circuit 10, and a reception confirmation signal from the high-frequency receiving circuit 10 is detected. The control circuit 11, which has determined that the notification has been performed, outputs an operation stop control signal for stopping the absence notification to the notification unit 12. Thereby, the notification unit 12
Is stopped, and the wandering person monitoring device enters a monitoring state.

[0025]

As is apparent from the above description, according to the wanderer monitoring apparatus of the present invention, the receiver cannot receive the radio waves (high-frequency radio waves) intermittently transmitted from the transmitter or receives the radio waves normally. Even if it is not possible, whether the high-frequency radio wave is received normally by the sub-receiver and the sub-high-frequency radio wave consisting of the same radio wave as the high-frequency radio wave transmitted after a fixed time from the end of transmission of the transmitter can be received normally Thus, it can be determined whether the wandering person is present in a predetermined area in a house (dwelling unit), a nursing home, or the like, or is absent. This eliminates the need for wiring between the receiver and the sub receiver as in the conventional example, and eliminates the complexity of wiring at the time of construction or the like.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing a configuration of a conventional wandering person monitoring device.

[Explanation of symbols]

 1 ······································································· High-frequency receiving circuit (sub-high-frequency receiving circuit) Control circuit) 22... High-frequency transmission circuit (sub-high-frequency transmission circuit) 23.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2G005 DA02 5C087 AA09 AA11 AA23 AA37 BB20 DD03 DD24 DD30 EE13 FF01 FF08 FF16 GG08 GG30 GG36 GG38 GG54 GG70 5H180 AA22 BB04 CC12 FF05

Claims (1)

[Claims] 1. A transmitter (1) owned by a wanderer and transmitting a radio wave, a receiver (2) receiving the radio wave and determining whether the wanderer is within a predetermined area, and the receiver And a sub-receiver (3) having a high-frequency receiving circuit (20) for receiving the radio wave at another location, wherein the wandering person monitoring device is transmitted from the transmitter to the sub-receiver. A control circuit (21) for outputting a transmission control signal when a signal is received from the high-frequency reception circuit that has received a radio wave, and a transmission control signal from the control circuit, and after a fixed time from the end of transmission by the transmitter, A high-frequency transmission circuit (22) for transmitting the same radio wave as the radio wave transmitted from the transmitter to the receiver;
And a switch section (23) for disconnecting the output of the high-frequency receiving circuit under the control of the control circuit when transmitting the high-frequency transmitting circuit, wherein the sub-receiver is configured to transmit the radio wave from the sub-receiver to the receiver. A wandering person monitoring device, which is installed in a range that can reach a location.