JPS59108188A - Burglar alarming - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an alarm method for preventing theft of houses, automobiles, and other objects installed outside the furnace.

Today's living environment has become more complicated, and there are many homes that are left unoccupied, cars parked in the same condition, and various unattended outdoor installations. There is a need for a simple and effective way to prevent theft, including theft, using a versatile method.

Conventionally, various methods have been proposed to prevent such theft.

Typically, a device equipped with a vibration sensing circuit with a buzzer is attached to the object to be prevented from theft, and the vibration sensing circuit detects shaking, vibration, or impact sound to the object to be prevented from theft in the event of an intrusion or theft as described above, and the buzzer is activated. There is a method of issuing a warning.

However, the alarm generated by a buzzer of a device attached to an object to be prevented from theft is a relatively loud sound because it has the purpose of the buzzer alarm.For example, if the object to be prevented from theft is a car and the car is If the vehicle is parked overnight in a residential area or in a hospital parking lot, it becomes a significant nuisance to nearby residents who are sleeping or to hospitalized patients.

Furthermore, even if this is not the case, the owner of an unattended parked car is often located at a considerable distance from the car, and the owner cannot hear the alarm buzzer, so he or she may not be able to hear the warning buzzer. are often unaware that their vehicles are at risk of such theft.

The present invention provides a versatile, simple, and effective anti-theft alarm method that eliminates the conventional drawbacks such as sloping.

Hereinafter, the configuration of the present invention will be explained in detail based on the drawings.

FIG. 1 is a block diagram illustrating the system of operation of the present invention. When the device main body 1, which receives power from ordinary household electricity or car batteries, etc., is attached to an object to be anti-theft and turned on, the delay circuit 2 detects vibration after a certain period of time (for example, several tens of seconds). Circuit 3 becomes alert. When vibrations (including shaking and impact sounds) are applied to the vibration sensing circuit 3 in this state, the vibrations are sensed, the vibration sensing circuit 3 is energized, and the transmitting circuit 4 emits a signal. Even in a place far away from the anti-theft object, if the receiver 5 is powered on, the receiver 5 receives the transmission wave from the transmitter circuit 4 as described above and issues an alarm.0 Delay circuit 2, when the device main body 1 is installed inside a house or inside a car and the power is turned on, the vibration sensing circuit 3 immediately enters the alert state, and even the vibrations when the owner leaves the house or car are detected. This would result in an unnecessary alarm being issued, and this is not intended to prevent such a situation from occurring. In the same sense, in order to prevent unnecessary alarms from being issued immediately when vibrations are detected when an owner enters a house or a car, another delay circuit is installed in the transmitting circuit 4, and the vibration sensing circuit 3 It is also possible to make the oscillation circuit 4 emit a signal only after a certain period of time even if it senses vibration.

Further, it is also possible to add another delay circuit to the transmitting circuit 4, so that the signal from the transmitting circuit 4 is emitted for a certain period of time, and then it is again influenced by the vibration sensing circuit 3 which is in the alert state. In this way, the owner holding the receiver 5 can detect whether the main body 1 attached to the anti-theft object has been subjected to accidental vibrations for some reason, or continuous vibrations that pose a high risk of intrusion or theft. You can distinguish and recognize to some extent whether you are receiving it or not.

The transmitting circuit 4 and the receiver 5 may be a combination in which the transmitting circuit 4 emits a signal of a specific frequency and the receiver 5 is a correspondingly specific one. However, in general, in order to avoid the need to prepare an expensive specific receiver, the above-mentioned unique frequency is within the frequency range of ordinary radio or television broadcast waves, and the owner is able to receive radio waves. It is preferable to use the receiver or television receiver as is and set these receiving frequencies to the corresponding frequencies in advance.Furthermore, the transmitting circuit 4 transmits the transmitted waves in the frequency range of normal radio broadcast waves. (e.g. 535-1605 KHz
), and if the receiver 5 is a normal radio receiver, the owner does not need to set the reception frequency of the radio receiver to a specific frequency in advance, and it will be able to listen to the radio broadcasts of any broadcasting station. This is even more preferable because as long as you listen to the warning, you can know the warning from the repeated short sounds.

In addition, by attaching a changeover switch etc. as appropriate, the owner can arbitrarily
It is of course possible to also utilize an alarm buzzer with the present invention.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating the system of operation of the present invention. 1...Device body, 2...Delay circuit, 3...
... Vibration sensing circuit, 4 ... Transmission circuit, 5 ... Receiver patent applicant Tadanori Makabe Agent Patent attorney Hiromasa Iriyama

Claims (1)

[Scope of Claims] 1. Transmitted waves from a transmitting circuit by energizing a vibration sensing circuit with a delay circuit attached to an object to be anti-theft are transmitted to a radio receiver, a television receiver, etc. at a place separated from the object to be anti-theft. An alarm method for preventing theft, characterized in that the alarm is received by a receiver or other receiver and issues an alarm. 2. The theft prevention alarm method according to claim 1, wherein the transmitted wave sweeps its frequency. 3. The anti-theft alarm method according to claim 2, wherein the band in which the transmitted wave sweeps its frequency is the frequency band of normal radio broadcast waves.