JP2009004341A - Sensor for detecting approach or contact of person - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To use articles arranged indoor such as a strongbox, a locker, a showcase, and an exhibit made of metal or other conductors, as a human body detecting sensor. <P>SOLUTION: The strongbox 1 or the locker 1 is used as a human body detecting sensor by connecting a device 2 capable of detecting electrostatic capacity held by a person with the strongbox 1 or the locker 1. Electrostatic capacity detector device attaching states to the strongbox and the locker are denoted by (1a) and (1b). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

Detailed Description of the Invention

The present invention will be described in relation to [Claim 1]. By connecting or incorporating a device for detecting a capacitance of a person, a metal, or other conductor, safe, locker, showcase, exhibit. In other words, the articles installed indoors, that is, the storage itself or the valuables themselves, or the exhibits themselves are intended to be used as an anti-theft sensor or a sensor for detecting the approach of a person.
In addition, it is intended to utilize the article itself as an anti-theft sensor by attaching it to an article that can be easily moved by a person such as a vehicle outdoors.
As for [Claim 2], during construction of a customer collection facility, office, house, etc., it will be installed on a building scaffolding, etc., so that workers or construction workers will have a scaffolding at a time or time when they should not be there. The device itself operates as a sensor for detecting an intruder, and can serve as a theft prevention device or a danger prediction device.

  Conventionally, in order to detect the approach or intrusion of a person, a sensor such as a photoelectric sensor, a pyroelectric sensor, or a TV camera for detecting a person has been arranged in the room where the article is placed or in the vicinity or vicinity thereof. .

Problems to be solved by the invention

  Therefore, when these systems are used for the purpose of crime prevention, any intruder will find out if they want to know the existence of the sensor, and it is possible to avoid the function by sequentially disabling the sensor.

Means for solving the problem

The present invention provides a metal or other conductor made of metal or other conductors, such as a safe, a locker, a showcase, an exhibit, etc. Safes, lockers, showcases, exhibits, etc. made of metal or other conductors by connecting or incorporating a circuit that detects the capacitance of people into safes, lockers, showcases, exhibits, etc. Etc., to try to make the sensor itself.
If a person approaches or touches an article, it is detected by the sensorized article.
Therefore, even if it is clear that the security sensor is installed on the article, it is difficult to easily remove the circuit for detecting the capacitance from the sensorized article and disable it.

[First Embodiment] If the present invention is described with reference to the drawings, a detection input line 3 of a capacitance detection device 2 is connected to a safe 1 in which a screw hole for screw fastening can not be drilled in FIG. As an electrical coupling point between the safe 1 and the capacitance detection device 2, an adhesive or a conductive adhesive tape is used as in 4.
(1b) In the case of an article that can be screwed like the locker 1, the detection input line 3 of the capacitance detection device 2 is set as the electrical coupling point of the locker 1 and the capacitance detection device 2, and screwed like 4 To install.
By installing the apparatus as described above, the safe 1 itself and the locker 1 itself can be used as a sensor for detecting the approach or contact of a person.
The capacitance detection device 2 includes a capacitance detection circuit 6 and a power supply circuit 7.
There are various measures in the capacitance detection circuit 6, but what is generally called a high-sensitivity touch sensor, or the capacitance of an object having a capacitance by constantly monitoring the capacitance of the installed object along with the environmental change. It is a device that can detect the approach or contact of the body and output an electrical signal, such as a device that detects the approach or contact as a change in the capacitance of the installed object, or the theremin found in musical instruments.
In the power supply circuit 7, batteries such as a dry battery, a rechargeable battery from a commercial power source, or various devices that convert a commercial power source into a DC power source can be used.
A sensor detection output line 5 is connected to an alarm device, a display device, a telephone transmission device or the like.
FIG. 2 is a circuit diagram of the system.

The invention's effect

If the device of the present invention is installed, even if the intruder disables various installed sensors or passes through the target object, the target object itself is a security sensor and is a powerful security system. Function.
Since the device is passive and operates with low power, the running cost can be saved compared to installing an active device.

  (1a)-(1b) is the attachment figure of the electrostatic capacitance detection apparatus to the safe or the locker.   It is a circuit diagram of a system.

Explanation of symbols

[Figure 1]
DESCRIPTION OF SYMBOLS 1 Safe or locker 2 Capacitance detection device 3 Detection input line 4 Point which electrically couples a capacitance detection device and a fireproof safe or a locker 5 Sensor detection output line 6 Capacitance detection circuit 7 Power supply circuit 8 Power supply current flow

Claims (2)

  Measures to use the product itself as a sensor to detect the approach or contact of humans and to use the product itself as an anti-theft device. .   A security device or danger prediction device that is made of metal or other conductor and that is used as a sensor that detects the entry of a person by attaching it to an article that is originally placed in a place where no person approaches or contacts it Measures to utilize as

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