JPH0668367A - Forgetfulness prevention unit - Google Patents

Abstract

PURPOSE:To provide the forgetfulness prevention unit which automatically warns a person who moves away by a previously set distance. CONSTITUTION:A master unit 51 is provided with a vibration sensor 11 which senses vibration and outputs a signal, a transmitter 21 which sends an ID code C1 assigned to a pair of the master unit and a slave unit and discriminating other pairs for a certain time by using the output of the vibration sensor as an actuation signal, and a receiver 32 which receives an answer signal from the slave unit, and the slave unit 52 is provided with a receiver 31 which receives the ID code Cm sent out of the transmitter 21 of the master unit and outputs a control signal 3 and a transmitter 22 which responds to the master unit 51 by sending the ID code C1 showing the pair with itself for a certain time with the control signal. Then the warning is generated only when the level at which the receiver 32 of the master unit 51 receives the output of the transmitter 22 of the slave unit 52 is specific and the ID code C1 which is received matches the ID code C1 previously sent by the transmitter 21 of the master unit 51 to the slave unit 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a transmitter and a receiver with a response function for receiving and responding to a signal transmitted from the transmitter, and an alarm generator or the like is provided in either the transmitter or the receiver. Forgetting prevention device. For example, if the transmitter carried by a person is too far away from the receiver attached to the object, the person will know where the object is (know its position), or the object will
Since it is impossible to know how far away (knowing the distance) from, it is necessary to give an alarm to prevent forgetting the other person if it moves a certain distance no matter which person or object moves. Equipment to be generated is required.

[0002]

2. Description of the Related Art As the above forgetting device, there are conventionally two examples as shown below. When knowing the position of an object: As shown in (1) of FIG. 4, when the receiver 20 is attached to the object side and the transmitter 10 is on the person side, when the position of the object becomes unclear by the person , Human side transmitter
10 sends a signal, and a receiver 20 attached to the object detects the signal and emits light or sound to respond to a person. By this operation, the position of an object whose person is unknown is known. However, if the distance between the transmitter and the receiver is too large, the response to the person becomes difficult to understand or actually becomes unclear. For example, if you install a receiver on your own car and forget the position of your car in a parking lot, etc. Etc.) to know the position of one's car. When knowing the mutual distance: As shown in (2) of FIG. 4, the transmitter 10 is attached to the object side and the receiver 20 is attached to the person side. The time point when the transmitted signal of the generated oscillator 10 becomes unreceivable by the receiver 20 on the human side or reaches a specific reception level is detected, and light or sound is emitted to respond. By this operation, it is known that a person has left the object. However, in this case, since the transmission power of the oscillator 10 needs to be in the ON state where it is constantly transmitted,
Battery energy is wasted, or the battery life has expired when you want to know when you are about to leave. For example,
When the child has a transmitter to prevent getting lost, etc., and when the child leaves a certain distance or more, the receiver owned by the parent automatically operates and the light, sound, etc. of the responder indicates that the child has left. I know that at worst I got lost.

[0003]

Therefore, if the transmitter 10 and the receiver 20 are too far apart from each other, the response becomes unclear.
The original transmitting and receiving functions are not exerted, the battery life is exhausted when it really needs to work, or
Since the transmitter has only one transmission signal, there is a drawback that a plurality of sets of the transmitter and the receiver cannot be used in the same area. An object of the present invention is to use a plurality of sets of a transmitter and a receiver in the same area, to save energy of a battery, and to separate by a preset distance,
An object of the present invention is to provide an anti-forgetting device that can automatically notify a person that a person has left an object or that an object has left the person.

[0004]

The basic configuration of the forgetting device of the present invention for achieving this object is shown in the principle diagram of FIG.
In the figure, reference numeral 51 denotes a forgetting device, which is a master device which first outputs a signal, and 52 is a slave device which receives the signal and responds to the master device 51. 11 is a vibration sensor that senses vibration generated by its movement in the master device 51 and outputs a signal, and 21 is assigned to the set of the master device 51 and the slave device 52 by using the output of the vibration sensor 11 as a start signal. This is a transmitter that transmits an ID code C ₁ for identifying a set for a certain period of time. 31
Is a receiver that receives the ID code C ₁ of its own set output from the transmitter 21 of the parent device 51 in the slave device 52, and generates the control signal 3 in accordance with the received ID code C ₁ . 22 is a transmitter which receives the control signal 3 output from the receiver 31 of the slave unit 52, generates the same ID code C ₁ as before indicating its own set, and responds to the master unit 51 of the partner for a fixed time. . 32 is the master device 51 and the slave device 52
The transmission signal for response output from the transmitter 22 of the above is received, the reception level thereof is a predetermined level, and the received ID code C ₁
Detects whether it is the same as the ID code C ₁ sent from the transmitter 21 to the slave 52 _first . Reference numeral 41 is a transponder that is driven only when the ID code C ₁ is the same and emits a response of light or sound.

[0005]

In the present invention, referring to FIG. 1, first, in the master device 51,
The vibration sensor 11 detects the vibration generated by the movement and outputs a signal, and the so-called sleep mode oscillator 21 is operated by using the signal as a start signal, and a pair of the master device 51 and the slave device 52 is connected. transmits only the ID code C ₁ for a predetermined time to represent, but with subsequent prevents consumption of unnecessary battery energy at rest again becomes the sleep mode, the slave unit 52, the receiver 31 receives the ID code C ₁ Then, by generating the control signal 3 and activating the oscillator 22 in the sleep mode for response to the power-on state, the slave unit 52, like the master unit 51, saves energy in the entire circuit. The vibration sensor 11 of the master device 51 generates, for example, a voltage by the movement (vibration) of the master device 51 (person side) to generate a transmitter.
21 is activated, and the ID code C ₁ for identifying the set of the master unit 51 and the slave unit 52 from other sets is transmitted to the slave unit 52. Slave unit 52 identifies its ID code C _1, and returns from the transmitter 22 of the responding parent 51 same ID code C ₁ and the main unit 51. Master device 51 and slave device 52
Uses unique ID codes C _{1 to} C _n as a set, so that multiple n master devices 51 and slave devices that have the same function even in the same area.
52 sets can be used. Also, the receiver 32 of the master device 51
Receives the ID code C ₁ of its own set from the child device 52, and if the reception level is equal to or higher than a preset level, the transponder 41 does not operate, but the mutual distance becomes far below the set level. The master device 51 never forgets the slave device 52 because it operates at the time point.

[0006]

FIG. 2 is a block diagram of an embodiment of the present invention. Figure 2
Among them, the same parts as those in Fig. 1 are shown by the same symbols. The master device of the forgetting device is 51, the slave device is 52, the vibration sensor is 11,12, the responder is 41,42,45,46, and the switch is 5,6, sync signal 1,2,
The control signals are 3 and 4.

The master device 51 is a slave device 52 depending on the setting of the switch 5.
The switches have their respective functions by the switch 6, but both can have the functions of both parent and child by setting the position of the switch. In the embodiment shown in FIG. 2, the switch 6 is set to the middle position to form the slave 52, the vibration sensor 12, and the responder 4
2,46 does not work. Hereinafter, the case of use for preventing a lost child will be described with reference to the flowchart of FIG.

A parent carries a master device 51 with the switch 5 set to a predetermined position, and a child holds a slave device 52 with the switch 6 set to a predetermined position. The transmitter 21 and the receiver 32 of the master device 51 are in the sleep mode, the receiver 31 of the slave device 52 is on and waiting, and the transmitter 22 is in the sleep mode state.

When a person carrying the master device 51 moves, the vibration sensor 11 detects the vibration, and the transmitter 21 and the receiver 32 are powered on by the detection signal, and the master device 51 and the slave device 52. The ID code C ₁ representing the set of is automatically transmitted to the slave unit 52 in a burst form several times. The slave unit 52 receives the ID code C ₁ at its receiver 31 and transmits a control signal 3 if it matches the ID code C ₁ given to the set of the master unit 51 and the slave unit 52 in advance. To the container 22. Then, the transmitter 22 in the sleep mode is powered on and the ID code is sent to the master device 51.
C ₁ is transmitted several times in a burst and responds. Receiver of master device 51
In order to identify the ID code C ₁ received from the slave unit 52, 32 detects the coincidence with the ID code C ₁ previously transmitted from the transmitter 21 to the slave unit 52, and further, in advance, with the received electric field level. Compares with the set value and detects less than or more than the set value. If the value is less than the set value, the transponders 41 and 45 are driven to generate sound and light. By this operation, even if the person who carries the master device 51 forgets about the child who has the slave device 52, he / she will be automatically notified when the electric field level drops by a certain distance or more. Another example is a child device 52 in a bag or the like.
Even if you leave the bag in place and leave the bag (it does not move), when the person holding the master device 51 moves, the responder 41, 4
5 works and automatically informs you. Further, in the above-described embodiment, the master device 51 and the slave device 52 can be further miniaturized if the switches 5 and 6 have separate functions. Also, the master device 51
If several points are set as the detection value of the electric field level received from the slave unit 52, it becomes possible to determine the distance, and the responder 4
For 1,45, for example, a blue light emitting diode is used when near, and a red light emitting diode is used when far away. Also, the alarm sound,
When the distance is near, the interval is 1 second, and when the distance is far, the interval is 0.5 seconds.
There is also a method of directly sensing the human body by providing a function of giving vibration in addition to sound and light.

[0010]

As described above, according to the present invention, since the unique ID code is used for the combination of the master unit and the slave unit,
It is possible to use multiple combinations of parent device and child device even in the same area. Further, since the vibration sensor is provided, it is possible to obtain an effect such as energy saving of the battery by setting the sleep mode in which the circuit operates only when moved.

[Brief description of drawings]

FIG. 1 is a principle diagram showing a basic configuration of an forgetting prevention device of the present invention.

FIG. 2 is a configuration diagram of an embodiment of the present invention.

FIG. 3 is a flowchart for explaining the operation of the embodiment of the present invention.

FIG. 4 is a diagram showing a configuration example of a conventional forgetting device.

[Explanation of symbols]

1,2 are sync signals, 3,4 are control signals, 5 and 6 are switches, 1
1, 12 are vibration sensors, 21 and 22 are transmitters, 31 and 32 are receivers, 41 and 42 are sound transponders, 45 and 46 are light transponders, 51 is a master device, and 52 is a slave device. .

Claims (1)

[Claims] 1. When a master unit (51) which first emits a signal and a slave unit (52) which receives the signal and responds to the master unit (52), are separated from each other by a large distance. In the forgetting prevention device for preventing the forgetting of the other party by issuing an alarm, in the parent device (51),
A vibration sensor (11) that senses the vibration generated by its movement and outputs a signal, and an ID code (C ₁ ) is provided only for a fixed time and a transmitter (21) and a receiver (32) for receiving a transmission signal of a response from the slave are provided, and the slave (52) has the transmitter (21) of the master. A receiver (31) that receives the ID code (C ₁ ) sent from 21) and outputs a control signal (3) and a pair of itself (52) to the parent device (51) by the control signal. A transmitter that responds by sending out the ID code (C ₁ ) that it represents for a certain period of time
(22) is provided, and the level of the signal received by the receiver (32) of the parent device (51) is the predetermined level and the output of the oscillator (22) of the child device (52) is received. ID code (C ₁₎ is transmitter master unit first (51) (21) child device (52) sends the ID code (C ₁₎ when the same only was characterized by generating an alarm forgetting Preventer.