JPS61134672A - Impact detecting sensor - Google Patents

Abstract

PURPOSE:To confirm whether an impact detecting sensor executes a normal operation or not by providing a power saving circuit, transmitting a signal generated from an object to be impacted, to the next system by wireless, and also providing a mutual operation confirming function to the next system. CONSTITUTION:A wireless type impact detecting sensor picks up an impact signal generated from an object to be impacted, by a vibration pickup element Ep consisting of piezoelectric ceramics, and by providing a filter mechanism 1 with an amplifier for amplifying and selecting said signal, a mechanism for transmitting a selected signal by wireless, a power saving mechanism 3, an electric transmitting mechanism 4, a transmitter-receiver 6, and a receiving signal amplifying and discriminating mechanism 7, in case when a prescribed signal has been received from the next system, whether the impact detecting sensor executes a normal operation or not can be confirmed, and from the viewpoint of crime prevention, the reliability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wireless impact detection sensor.

The main uses of impact detection sensors include the management of industrial equipment, parked cars, and windows of houses.

For the former, for industrial equipment, for example, equipment with a rotating system such as an electric motor, the initial abnormal sound of the rotating part, that is, the shock signal generated from the abnormality of the bearing ball, is detected.
In order to prevent seizure of rotating parts, etc., a shock detection sensor is installed near the rotating system.

On the other hand, when targeting the latter, cars or houses,
By law, most people enter inside a parked car or into a house by breaking the window glass, unlocking it and opening it, or entering directly through the broken part. .

In this case, by attaching an impact detection sensor to the window glass, the impact detection sensor will sense the impact signal just before the intruder breaks into the window, that is, at the time when the impact is applied to the window glass in order to break it. and transmits the signal to the next device.

The security guard who receives this signal will immediately be dispatched and take appropriate measures against the theft.

The impact detection sensor of the present invention, which is suitable for these uses, is characterized in that it is not a wired type and has a mutual operation confirmation function with the next system.

The details will be explained below with additional drawings.

As shown in Fig. 1, a conventional wireless impact detection sensor uses a vibration pickup element Ep made of piezoelectric ceramic to pick up an impact signal generated from an impact object, and has an amplifier-equipped filter mechanism that amplifies and sorts out the signal. 1. Mechanism for detecting and processing color-sorted signals 2
, and a mechanism for wirelessly transmitting the processed signal,
A power saving mechanism 3, an electric transmitting mechanism 4, and a transmitter 5 are used to transmit signals to the next system.

Conventional wireless sensors have a serious drawback in that they cannot communicate with the next system, making it impossible to confirm their operating status.

In this regard, as a result of various studies, as shown in FIG. Also, communication to confirm the current status became possible.

As a transmitter/receiver, ultrasonic method or infrared method,
Alternatively, a radio wave method is possible.

As a result, in the present invention, it is possible to confirm whether or not the shock detection sensor is operating normally, which greatly improves the effectiveness in terms of crime prevention, and it is expected to be used in a wide range of fields and has industrial value. be.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the electrical circuit configuration of a conventional impact detection sensor, and FIG. 2 is a diagram showing the electrical circuit configuration of an impact detection sensor of the present invention. Ep is a pickup element, B is a battery, and N is a diagram.
1 is a filter mechanism, 2 is a detection mechanism, 3 is an IT-saving mechanism, 4 is an electrical transmission mechanism, 5 is a transmitter, 6 is a transceiver, and 7 is a received signal amplification discrimination mechanism.

Claims (1)

[Claims] Equipped with a power-saving circuit, the signal generated from the impact object is transmitted wirelessly to the next system using ultrasonic, infrared, or radio wave methods, as well as a mutual operation check function with the next system. A shock detection sensor characterized by being equipped with.