JPH0375995A - Device for preventing thing from being left behind - Google Patents

Abstract

PURPOSE:To prevent a thing from being left behind by assisting the power of attention of a man by checking a receiving code and generating an alarm in accordance with a result of receiving strength check. CONSTITUTION:A receiver 20 provided on baggage, etc., receives a transmitting code from a transmitter 10 which its person owns, and whether it coincides with an instruction code from a receiving code instructing means 5 or not is checked by a receiving code check means 4. Subsequently, strength of the receiving code is checked by a receiving strength check means 6, an when a distance between the person himself and his baggage, etc., becomes large and the receiving strength becomes below a range set by a strength check range instructing means 7, it is alarmed by a bell 9 that the baggage is left behind through a bell sounding instructing means 8. According to this constitution for assisting the power of attention of a man, it is prevented surely that a thing is left behind.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a misplacement prevention device.

[Conventional technology]

Conventionally, when copying a document, a timer built into the copy machine will sound a buzzer if you forget to take the original.
This is very useful because it lets you know if you have misplaced it. However, small items and baggage must be managed by the owner at all times.

[Problem to be solved by the invention]

Therefore, it is common for passengers to accidentally forget their luggage or drop their commuter pass on the train without noticing, or to suffer damage such as being left behind. In addition, there are cases where people leave their passports behind or lose their passports while traveling, which proves that there are limits to human attentiveness.

An object of the present invention is to provide a misplacement prevention device for assisting human attention.

[Means to solve the problem]

The misplacement prevention device of the present invention includes a transmitter comprising a transmission instruction means and a transmission device, a reception device, a reception check means,
It is constituted by a reception instruction means, a reception strength check means, an intensity range indication means, a bell ringing instruction means, and a receiver consisting of a bell.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 shows a block diagram showing the configuration of an example in which transmission is coded as an embodiment. In the figure, the transmitter] O is composed of a sending code indicating means 1 and a transmitting device, and also a receiving device W3, a receiving code checking means 4, a receiving code specifying means 5, a receiving strength checking means 6, and an intensity check range indicating means 7. A receiver 20 is constituted by the bell ringing instruction means 8 and the bell 9. The transmission code instruction means 1 gives a transmission code unique to the transmitter to the transmission device 2, and the transmission device W2 then transmits the received transmission code. The receiving device 3 receives the transmitted coat and provides it to the received code checking means 4. The reception code check means compares the received code received by the receiver with the reception code given from the reception code instruction means 5, and if they match, the reception strength check means 6 checks whether the strength is within the range given from the strength range indication means 7. . If the intensity is outside the range, the bell ringing instruction means 8 does not ring the bell 9. Furthermore, the reception strength checking means 6 checks the reception strength outside the strength range, and each time the reception strength decreases, a signal representing the weakening level is given to the bell ringing instruction means 8, and the bell 9 is ringed loudly in inverse proportion to the weakening of the reception strength. Zuyou can do it too. The present invention uses ultrasonic waves or electromagnetic waves that do not violate the Radio Law.

In the embodiment of the present invention, an example of transmission/reception to the eigencord 1 has been described, but a frequency transmission/reception method in which the eigenfrequency is used may also be used. In the case of code transmission/reception, since the code is identified at a specific wave number, if the telephone number and product number are used together as the code, there is no risk of coming into contact with someone else's code, and malfunctions due to crosstalk can be prevented even if the frequency is the same. In frequency transmission/reception systems, frequencies are divided by frequencies carrying specific signals to prevent crosstalk.

The embodiment of FIG. 2 is a transmitter similar to that of FIG.
Two transmitter/receivers 100 are prepared, one is installed in the luggage, and the other is carried by the luggage, so that the luggage also sounds for the purpose of crime prevention.

〔Effect of the invention〕

As is clear from the above explanation, if the device for preventing misplacement of the present invention is used, a bell will ring when the transmitter and receiver are separated and the reception strength weakens, making it possible for a person to carry one while carrying luggage and the other. If you misplace your luggage or misplace it, a bell will ring, which has the effect of letting you know if your luggage has been misplaced or misplaced. Furthermore, if multiple transmitters are used to load different packages and multiple codes corresponding to each transmitter are entered in the receiving code indicating means 5 of the receiver, multiple packages can be loaded using -1 receiver. This has the effect of letting you know if something has been left behind or left behind. Furthermore, as in the embodiment shown in FIG. 2, by making the baggage also ring, it is effective in preventing crime from being left behind or stolen.

[Brief explanation of drawings]

FIG. 1 is a front view of one embodiment of the present invention, and FIG. 2 is a front view of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Transmission coat instruction means, 2... Transmission device, 3. Receiving device, 4... Receiving coat check means, 5... Receiving yaw 1 to instruction means, 6... Reception strength checking means, 7.
・Strength check range indicating means, 8. Bell ringing indicating means,
9...Bell, 10.Transmitter, 20...Receiver, 100
...Transmitter/receiver.

Claims (1)

[Claims] A transmitter including a transmission instruction means and a transmission device, and a receiver that produces a reception device, reception check means, reception instruction means, reception strength check means, strength check range indication means, warning drive means, and warning generation means. A misplacement prevention device characterized by: