JPH11259785A - Emergency alerting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the countermeasure at the time of an emergency possible to be performed inexpensively and fast by starting to ring a bell and to emit light from a lamp once a radio transmitter transmits a radio wave, continuing to ring the bell and to emit light from the lamp and continuing to issue an alert until a resetting circuit is manually operated even if the radio transmitter stops transmission. SOLUTION: When a radio receiver receives a radio wave from a radio transmitter, a base current flows into a transistor 10. And even if it flows from a power supply voltage V1 to a relay 11, contact 12 and 13 and to the ground, an output from a radio part is eliminated and the transistor 10 operates no more, the operation state of the relay 11 is maintained. When contacts 14 and 15 are connected, power supply voltage V2 is applied to a bell 7 via the contact 14, power supply voltage V3 is applied to a lamp 8 via the contact 15, the bell 7 rings, the lamp 8 emits light and an emergency alert is reported. The contact 13 of a resetting circuit is temporarily made a disconnection state with a push button or a key operation in order to stop the ringing of the bell 7 and the emission of the lamp 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency warning device using radio waves.

[0002]

2. Description of the Related Art As an emergency warning device used by an sick or elderly person in an emergency, when a pendant-type wireless transmitter is operated, a signal is received by a receiving device and transmitted from a telephone line.
A device for automatically making a call to an emergency contact center registered in advance is provided.

[0003]

However, the conventional emergency alert device has a function of storing a telephone number of an emergency contact center and the like and automatically making a telephone call, and therefore is constituted by a microcomputer and is very expensive. . In addition, since the emergency contact center is not always nearby, it sometimes took several hours from receiving a report to calling.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art, which are expensive and may take a long time to respond, such as a long installation time. To provide.

[0005]

In order to achieve the above object, the present invention provides a radio transmitter having a push-button switch and transmitting a radio wave for a fixed or depressed time when the switch is pressed; A radio receiving unit that sends out a reception output when a radio wave is received, a reset circuit that sends out a reset output manually, and operates with the reception output. Once activated, the operation continues to be held even if the reception output is not sent out. A holding circuit whose operation is restored by a reset output of the reset circuit, a sounding device, while the holding circuit is operating, means for sounding the sounding device, a light emitting device, and the holding circuit operating. Means for illuminating the light emitting device during the operation.

[0006]

Embodiments of the present invention will be described below in detail. FIG. 1 is a block diagram of the emergency alert device of the present invention. The wireless transmitter 1 has a push button, and when the button is pressed, a radio wave is transmitted for a fixed time or for a pressed time. The transmitted radio wave passes through the antenna 3,
The signal is received by the wireless receiver 4 of the emergency alert receiver 2. The output of the wireless receiving unit 4 is sent to the holding circuit 5, and the holding circuit 5 operates. When the holding circuit 5 operates, the bell 7 as a sounding device and the lamp 8 as a light emitting device are driven. Holding circuit 5
Holds the operation state once it operates, until the reset switch 6 is pressed. That is, even if the radio wave transmitted by the radio transmitter 1 is stopped by the radio receiver 4, once the radio wave is received, the state is maintained and the bell 7 and the lamp 8 are continuously driven. When the reset switch 6 is manually operated, the holding circuit 5 is restored, and the bell 7 and the lamp 8 are reset.
Stops ringing and flashing.

FIG. 2 shows a diagram of a first specific example of the holding circuit and the reset circuit. The output from the wireless receiver 4 is applied to the base (b) of the transistor 10. The emitter (e) of the transistor 10 is grounded, and the collector (c) is a relay 1
1 is connected from the power supply voltage V1. The collector of the transistor 10 has the contact 12 of the relay 11 and the contact 13 of the reset switch 8 connected in series and dropped to ground. One of the contacts 14 of the relay 11 is connected to the power supply voltage V2.
The other is connected to ground via a bell 7. One of the contacts 15 of the relay 11 is connected to the power supply voltage V3, and the other is connected to the ground via the lamp 8. Contact 1
The operation states of 2, 13, 14, and 15 are states indicated by solid lines in FIG. 2 in a state where radio waves from the wireless transmitter 1 are not received. That is, the contacts 12, 14, and 15 are in a disconnected state, and only the contact 13 is in a contact state.

When a radio wave from the wireless transmitter 1 is received by the wireless receiving unit 4, a positive voltage is applied to the base of the transistor 10 from the wireless receiving unit 4, and a base current flows through the transistor 10. When a base current flows through the transistor 10, a current flows from the power supply voltage V1 to the relay 11, the collector, the emitter, and the ground of the transistor 10, and the relay 11
Works. When the relay 11 operates, the contacts 12, 14,
Reference numeral 15 denotes a contact state (shown by a dotted line in the figure). When the contact 12 comes into contact, the current that has been flowing from the power supply voltage V1 to the relay 11, the collector, the emitter, and the ground of the transistor 10 is changed from the power supply voltage V1 to the relay 11, the contact 12,
Even if the contact 13 and the ground flow, the output from the radio unit 4 stops, and the transistor 10 stops operating, the relay 1
1 is maintained. When the contacts 14 and 15 are in the contact state, the power supply voltage V2 is applied to the bell 7 via the contact 14, the power supply voltage V3 is applied to the lamp 8 via the contact 15, the bell 7 sounds, and the lamp 8 is turned on. It emits light to notify an emergency alert. In order to stop the ringing of the bell 7 and the emission of the lamp 8, the contact 13 of the reset circuit 6 is temporarily turned off (shown by a dotted line in the figure) by a push button or key operation. When the contact 13 is disconnected, the current that has been flowing from the power supply voltage V1 to the relay 11, the contact 12, the contact 13, and the ground is stopped, and the relay 11 is restored. When the relay 11 is restored, the contacts 12, 14, and 15 that were in the contact state are turned off, and the ringing of the bell 7 and the emission of the lamp 8 stop.
Once the relay 11 is restored, the contact 13 of the reset circuit
Even if returns to the normal contact state, since the contact 12 is disconnected,
The relay 11 does not operate.

In FIG. 2, the contact 12 of the relay 11 is used for self-holding, the contact 14 is used for ringing a bell, and the contact 15 is used for lighting a lamp.
This is because it is assumed that the driving voltages of 1, 1 and 7 and the lamp 8 are different from each other. If the bell 7 and the lamp 8 can be driven at the same voltage, the lamp 8 is connected in parallel with the bell 7 and the contact 15
May be unnecessary. FIG. 3 is a diagram of a second specific example of the holding circuit and the reset circuit. In this circuit, the contacts of the relay 11 are further reduced, and the relay 11, the bell 7, and the lamp 8 are driven by the same power supply voltage V1. The bell 7 and the lamp 8 are also driven only by the contact 12. Bell 7 and lamp 8
Are connected in parallel, one is connected to the same power supply voltage V1 that drives the relay 11, and the other is connected to the contact 12. Further, a contact from the connection of the relay 11 to the collector (c) of the transistor 10 via the diode 14
2 are connected. The diode 14 drives the base (b) of the transistor 10 and the transistor 10
When a current flows between the collector (c) and the emitter (e), a current from the power supply voltage V1 mainly flows through the relay 11,
This guarantees that the relay 11 operates. If there is no diode 14 and it is connected directly, the current from the supply voltage V1 will pass through the parallel circuit of the relay 11, the bell 7 and the lamp 8. From relay 11, bell 7,
If the DC resistance value of the lamp 8 is low, the current flowing through the relay 11 decreases, and there is a danger that the relay 11 will not operate. With the diode 14, the current from the bell 7 and the lamp 8 stops flowing due to the reverse resistance of the diode 14, and all the current from the power supply voltage V1 flows through the relay 11 and the relay 1
1 is guaranteed. Once the relay 11 operates,
The contact 12 is brought into the contact state, and the current from the power supply voltage V1 is
The relay 11, the forward direction of the diode 14, the contact 12, the contact 13, the ground and the flow, and the operation state of the relay 11 is maintained. In addition, the current flowing from the power supply voltage V1 through the bell 7 and the lamp 8 flows through the contact 12, the contact 13, and the ground, causing the bell 7 to sound and the lamp 8 to light.

Since the wireless transmitter 1 is portable, the power is naturally supplied by dry cells or secondary batteries. However, if the emergency warning receiver 2 can be supplied by dry cells or secondary batteries, the emergency Since the power supply wiring is not required at the place where the machine 2 is installed, there is an advantage that the machine 2 can be installed at any place where attention is easily attracted. Therefore, when the emergency alert receiver 2 is waiting to receive a radio wave from the wireless transmitter 1, it is desirable that the power consumption is minimized. Since the holding circuit 2 illustrated in FIG. 2 is configured by a relay circuit, it does not consume any electric power at the time of standby, which meets the object of the present invention.

In the above description, the case where the holding circuit 5 is constituted by a relay circuit has been described. Of course, the present invention is not limited to the case where the holding circuit is constituted by a relay circuit. A flip-flop is used as an electronic holding circuit, an electronic switch is used as a contact for driving a bell or a lamp, the flip-flop is operated at the output of the radio receiving unit 4, and the flip-flop is operated at the output of the reset circuit 6. Can be configured by restoring. However, in that case, it is necessary to select an element that consumes less power during standby.

As described above in detail, according to the present invention, once the wireless transmitter 1 transmits a radio wave, the bell starts to ring and the lamp emits light. , And an emergency alarm device that continuously emits an alarm until the reset circuit is manually operated can be realized.

The present invention has the following advantages. (1) In an emergency, if the transmission button of the portable wireless transmitter is pressed once, the bell continues to ring and the lamp emits light, which is suitable for an emergency warning of an elderly or sick person. (2) Since the wireless communication is used, it is easy to install a bell or a lamp outdoors, so that a nearby person can be notified in an emergency and immediately called in an emergency.

[Brief description of the drawings]

FIG. 1 is a block diagram of an emergency alert device according to the present invention.

FIG. 2 is a diagram of a first specific example of a holding circuit and a reset circuit.

FIG. 3 is a diagram of a second specific example of the holding circuit and the reset circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Radio transmitter 2 Emergency alarm receiver 3 Antenna 4 Receiver 5 Holding circuit 6 Reset circuit 7 Bell 8 Lamp 10 Transistor 11 Relay 12, 14, 15 Relay contact 13 Reset circuit contact 14 Diode

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04B 1/034 H04B 1/034 L 1/06 1/06 Z

Claims (1)

[Claims] 1. A wireless transmitter having a push button switch and transmitting a radio wave for a fixed time or a pressing time when the switch is pressed, a radio receiving unit for transmitting a reception output when receiving the radio wave, It operates with the reception output, and once it operates, the operation continues to be held even if the reception output is not sent, the operation is restored by the output of the reset circuit, a sounding device, and while the holding circuit is operating,
Means for sounding the ringing device, a light emitting device, means for lighting the light emitting device while the holding circuit is operating, and a reset circuit for manually restoring the operating holding circuit. An emergency alert device, characterized in that: