JPS61102562A - Shock detection sensor - Google Patents

Abstract

PURPOSE:To reset a memory mechanism without stopping supply of electric power to individual reset functions by providing a reset function which resets the memory mechanism. CONSTITUTION:A detection sensor is supplied with electric power through a line W and only when a signal generated by an element EP is a specific signal, a transmit signal converting mechanism S and the memory mechanism M are put in operation to send the signal to a succeeding system. In such a case, terminals 34 and 35 dedicated to memory resetting are exposed to the outside of a case and short-circuited by a short-circuit tool Bs to reset the memory mechanism M without stopping supply of the electric power. Namely, the electric power is supplied even when the memory mechanism is reset, so other mechanisms are able to operate and transmit the detection signal to the succeeding system. Consequently, some specific shock detection sensor is reset in a centralized control system, so the whole system requires no power disconnection, which is extremely effective to crime prevention.

Description

[Detailed description of the invention] The present invention relates to an impact detection sensor.

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

For industrial equipment, for example equipment with rotating systems such as electric motors, the initial abnormal sound of the rotating part, that is, the noise signal generated from the abnormality of the hair ring ball, is detected.
For the purpose of preventing burns (= burns, etc.) of rotating parts,
Install the impact detection sensor near the rotating system.

- In the case of a car or a house, if you are breaking into an illegally parked car or a house, break the window glass, unlock it, and open the window. Or, most people enter from the part that was directly destroyed.

In this case, by attaching a shock detection sensor to the window glass, it is possible to detect the impact of the intruder immediately before the intruder enters the interior, that is, at the time when the glass receives a strong impact that would destroy the window glass.
#The impact detection sensor detects the impact signal and transmits the signal to the dimensional 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 applications, is capable of resetting the internal memory mechanism without cutting off the power supplied to the internal circuit, and is capable of impact detection even when the memory mechanism is reset. There are characteristics.

The details will be explained below with additional drawings.

Among the previous methods, the method of attaching impact detection sensors to the window glass of buildings such as houses that are frequently used is as shown in Figure 1 a and b, the plan view and cross-sectional view of which are respectively A wire 13 is glued to one side of the glass fitted inside the wire, and is used to supply power and transmit generated signals to the next system.
, the shock detection sensor 14 has a structure shown in FIG.
As shown in , there is a vibrating big aperture element made of piezoelectric ceramic Q), E, a filter mechanism F with an amplifier that amplifies and selects the signals, a mechanism D that detects and processes the selected signals, and a filter mechanism D that detects and processes the selected signals. It consisted of a mechanism S for converting the received signal into a transmission signal, a memory mechanism M, and a line W for transmitting the signal.

However, strictly speaking, the above-mentioned transmission line W also has the function of supplying power to the impact detection sensor.

Conventional shock detection sensors have a serious flaw in that once an alarm is triggered and the memory mechanism is activated, the supply of power must be temporarily stopped and reset, and the alert state must be canceled once. there were.

As a result of various studies regarding this point, as shown in Section 2, we added a reset mechanism R that resets the memory mechanism without temporarily stopping power supply as in conventional impact detection sensors.

This can be done by using a shorting device (a small conductive piece such as a coin or screwdriver) to short-circuit the specified terminals of the circuit, or by using a magnet to operate a built-in reed switch/chip. In addition, there are devices that have a built-in transducer that electrically converts a mechanical link, and devices that operate a predetermined circuit equipped with an internal antenna for t-magnetic waves, but in this case, As an example, the case where a short circuit tool is used will be described in detail.

First, electric power is supplied through the line W, and only when the signal generated by the element EP is a predetermined signal, the transmission signal conversion mechanism S and the memory mechanism M are operated, and the signal is transmitted to the next system through the line W. .

Therefore, in the case of a conventional impact detection sensor, the power supply is stopped during t''-L to reset the memory mechanism.
All 0 including ``''''''. There was a serious flaw in that the central control system was paralyzed and was unable to detect abnormalities in many other objects.

In order to improve this point, as shown in Figure 3, a dedicated memory reset terminal is used. By exposing 4.35 to the outside of the case and short-circuiting it with the shorting tool B, it is possible to reset the memory mechanism without stopping the power supply.

Even when the memory mechanism is being reset, power is constantly being supplied, so other mechanisms remain operational, making it possible to transmit detection signals to the next system.

As a result, in a centralized control management system, it is possible to perform a specific operation in a power supply state without performing a very dangerous operation for crime prevention, such as stopping power supply to all systems in order to reset a particular shock detection sensor. It is possible to reset only the impact detection sensor, making it extremely safe from a crime prevention perspective, and has industrial value as it is expected to be used in a wide range of fields.

4. Figures 1a and 1b show an example of mounting the impact detection sensor in a side view and a cross-sectional view, respectively.
2 indicates glass, 13 indicates a wire, and 14 indicates a strike detection sensor.

FIG. 2 a is a diagram showing the electrical circuit configuration of a conventional shock detection sensor, and b is a diagram of the present invention.
Detection mechanism S is a transmission signal conversion mechanism 1M is a memory mechanism, R is a memory reset mechanism + B S is a short circuit, W
18 shows the No. 18 transmission and power supply lines, respectively.

FIG. 3 shows the external appearance of the impact detection sensor of the present invention in a front view and a side view, 31 is an LED for the memory mechanism, 32 is
Case, 33, Signal transmission and power supply line, 34.35
is a terminal for setting the memory mechanism.

Claims (1)

[Claims] A shock detection sensor characterized in that an individual reset function can be reset without stopping the supply of electric power by using an external shorting device, magnetic or mechanical shock, electromagnetic waves, etc. .