KR20090028910A - Device for sensing assembly using infrared rays and method for equipment confirmation thereof - Google Patents

Device for sensing assembly using infrared rays and method for equipment confirmation thereof Download PDF

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Publication number
KR20090028910A
KR20090028910A KR1020070094049A KR20070094049A KR20090028910A KR 20090028910 A KR20090028910 A KR 20090028910A KR 1020070094049 A KR1020070094049 A KR 1020070094049A KR 20070094049 A KR20070094049 A KR 20070094049A KR 20090028910 A KR20090028910 A KR 20090028910A
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KR
South Korea
Prior art keywords
light
installation
infrared signal
voltage
light receiving
Prior art date
Application number
KR1020070094049A
Other languages
Korean (ko)
Inventor
심이섭
Original Assignee
비경시스템주식회사
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Publication date
Application filed by 비경시스템주식회사 filed Critical 비경시스템주식회사
Priority to KR1020070094049A priority Critical patent/KR20090028910A/en
Publication of KR20090028910A publication Critical patent/KR20090028910A/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

An infrared sensor and an installation method thereof composing a luminescence device and a light receiver as one group are provided to confirm installation angle having optimum sensibility and confirm an installation state by analyzing infrared signal transmitted between the luminescence device and the light receiver. A flood light receiver(100) radiates infrared signal. A photoelectric receiver(200) senses whether to generate an invader in a monitoring region by analyzing the light receipt. A photoelectric receiver includes a test switch(211), a light receiving part(212), a F/V converter(213), a controller(214), a buzzer driving part(215) and a buzzer. The test switch tests the installation angle between the photoelectric receiver and the flood light. The F/V converter converts the frequency of the infrared signal into voltage. The controller enters into a testing mode confirming the installation angle of the photoelectric receiver according to the switching on. The F/V converter compares the voltage of infrared signal with reference voltage.

Description

Device for Sensing assembly using infrared rays and method for equipment confirmation

The present invention relates to an infrared detector having a single light emitting device and a light receiving device installed in a specific surveillance area, and more specifically, to check the installation state by analyzing the infrared signal between the light transmitting device and the light receiving device, The present invention relates to an infrared sensor and an installation method for verifying the installation, which automatically terminate the test mode and then enter the monitoring mode when the installation angle having the transmission and reception sensitivity is confirmed.

Recently, homes and companies have installed and used unmanned security and access control systems provided by security companies in order to prevent the occurrence of various crimes and to protect lives and property.

The unmanned guard and access control system is equipped with various sensors that detect unauthorized intrusion of outsiders at a predetermined position of the surveillance area, and the signals of each sensor are collectively detected by the subscriber device or the sensing device installed in the surveillance area. Alternatively, the signal detected by the sensing device is transmitted to a central controller installed at a remote location through a dedicated line or an aerial line.

Thus, the central control device protects valuable lives and property in the surveillance area by checking whether an intruder has occurred in each surveillance area and providing a quick response accordingly.

In general, infrared sensors are widely used as sensors applied to such unmanned security and access control systems.

As shown in FIG. 3, the infrared detector is composed of a light transmitting apparatus 10 and a light receiving apparatus 20 as one set so as to be optically facing each other in a monitoring area, for example, inside or outside the window 40. do.

The light emitting device 10 generates an infrared signal 30 having a predetermined frequency and radiates it to the light receiving device 20 side, and the light receiving device 20 receives an infrared signal emitted from the light emitting device 10 and then frequency. Analyze the band to determine if it is a contracted frequency band, and if it is a contracted frequency band, analyze the amount of light received.

At this time, when the amount of received light analyzed by the light receiving device 20 is less than or equal to a predetermined value, an external intruder is generated between the light transmitting device 10 and the light receiving device 20 or an infrared signal transmitted / received by an arbitrary object is blocked. Generate the set alarm sound by judgment.

The structures of the light transmitting apparatus 10 and the light receiving apparatus 20 will be described in detail with reference to FIG. 4 as follows.

Transmitter 10 is an oscillator 11 for generating an infrared signal having a set frequency band, a lens 13 for diffusing the infrared signal generated by the oscillator 11 at a predetermined direction angle, the front and rear ends of the lens 13 It is composed of an optical filter 12, 14 installed in the light filter to extract and transmit only the wavelength of the pure infrared signal.

 In addition, the light receiving device 20 includes a lens 23 for collecting the infrared signal emitted from the light emitting device 10 at a predetermined direction angle, a detector 21 for receiving the collected infrared signal, and a front and rear ends of the lens 23. It consists of optical filters 22 and 24 which extract only wavelengths of pure infrared signals from the installed and received signals.

Angles facing the light emitting device 10 and the light receiving device 20 when installing the light emitting device 10 and the light receiving device 20 having the above-described configuration in a monitoring area such as an interior or exterior of a window or an exhibition space or a wall surface. That is, it is very important that the infrared signal to be transmitted and received is installed at an angle having the optimum sensitivity.

That is, the optimum sensitivity can be ensured only when the infrared signal is installed at an angle at which light is transmitted and received as shown in "C" in FIG. 4.

In general, in the process of installing an infrared detector composed of the light emitting device 10 and the light receiving device 20 in the monitoring area, the setting of the light emission and the light receiving angle is dependent on the human eye.

Therefore, it is very difficult and troublesome to set the angle between the light transmitting device and the light receiving device, and there is a problem that the reliability of the infrared signal transmitted and received has the maximum value even if the angle of the light transmitting and receiving is made. have.

The present invention has been invented to solve the above problems, the object of which is to analyze the infrared signal transmitted and received between the light transmitting device and the light receiving device in the test mode immediately after the installation of the infrared detector to check the installation state, the optimum transmission and reception sensitivity When the installation angle is confirmed, the test mode is automatically terminated and then the monitoring mode is entered to provide the normal unmanned monitoring for the monitoring area.

In the infrared detector composed of a light transmitting device and a light receiving device according to a feature of the present invention for realizing the above object,

A test switch for testing an installation angle between the light transmitting device and the light receiving device installed in the surveillance region; A light-receiving unit for collecting only the infrared signal having a predetermined frequency band radiated from the light transmitting device at a predetermined direction and then filtering to extract only the pure infrared signal; An F / V converter for converting a frequency of the infrared signal received by the light receiver into a voltage; Entering the test mode to check the installation angle of the light transmitting device and the light receiving device according to the on of the test switch, and determines whether or not the normal installation by comparing the voltage of the received infrared signal applied through the F / V converter and the set reference voltage. And a control unit controlling whether or not the alarm sound is transmitted accordingly. And a buzzer driver configured to transmit an installation angle confirmation alarm sound of the light projector and the light receiver through a buzzer according to a control signal of the controller.

In addition, the present invention provides a process for requesting confirmation of installation using a test switch after the light emitting device and the light receiving device is installed in the monitoring area; Entering a test mode and receiving an infrared signal emitted from the light transmitting device according to a request for confirming installation through the test switch; Converting a frequency of the received infrared signal into a voltage and comparing the frequency with a set reference voltage; Checking an installation state of the light emitting device and the light receiving device according to the comparison result and transmitting an alarm sound according thereto; If the installation of the light emitting device and the light receiving device is determined to be normal includes the step of ending the test mode and executing the monitoring mode after a predetermined time.

By the above-described configuration, the present invention provides convenience in installing one set of infrared detectors in a specific surveillance area, and provides installation of an infrared transmission / reception angle having an optimal sensitivity.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

1 is a view schematically showing the configuration of an infrared detector according to an embodiment of the present invention.

As shown, the present invention generates a set frequency band to emit an infrared signal 100 and a light receiving device for detecting the occurrence of intruders in the surveillance region by receiving an infrared signal emitted from the light emitting device 200 It consists of 200.

The light receiver 200 includes a test switch 211, a light receiver 212, an F / V converter 213, a controller 214, a buzzer driver 215, and a buzzer spk.

The test switch 211 is switched on by the installation worker of the infrared detector, the infrared signal after installing the light emitting device 100 and the light receiving device 200 in a specific monitoring area, such as the interior or exterior of the window, wall, exhibition space, etc. The control unit 214 applies a selection signal for checking whether or not the transmission / reception angle of is installed to have an optimal sensitivity.

The light receiving unit 212 collects an infrared signal having a set frequency band emitted from the light transmitting apparatus 100 at a predetermined direction angle, and then extracts only a pure infrared signal through an optical filter (not shown).

The F / V converter 213 converts the frequency of the received infrared signal into a voltage and applies it to the controller 214.

The controller 214 enters a test mode for confirming the installation angles of the light transmitting apparatus 100 and the light receiving apparatus 200 according to the switching on of the test switch 211, and is applied through the F / V converter 213. By comparing the voltage of the received infrared signal with the set reference voltage to determine whether or not the normal installation and controls the transmission of the alarm sound accordingly.

The controller 214 determines that the installation angle maintains an optimal sensitivity when the voltage of the received infrared signal is within a set reference voltage, for example, 3V to 5V, so that a continuous alarm sound is transmitted.

The controller 214 maintains an abnormal state in which the installation angles of the light transmitting device 100 and the light receiving device 200 are abnormal when the voltage of the received infrared signal is detected within a set reference voltage, for example, within a range of 3V to 5V. It is determined that the intermittent alarm sound is sent.

The buzzer driver 215 transmits an alarm sound for confirming the installation angles of the light projector 100 and the light receiver 200 through a buzzer spk according to a control signal applied from the controller 214.

For example, when the installation angles of the light transmitting device 100 and the light receiving device 200 maintain a normal transmission / reception sensitivity, a guide sound “beep ~~~~~~~” is transmitted and a state of maintaining abnormal sensitivity is provided. If it beep, "beep, beep, beep, beep, beep".

Referring to Figure 2 with respect to the operation of the present invention including the above configuration is as follows.

The infrared detector consisting of the light transmitting device 100 and the light receiving device 200 is installed in a specific monitoring area such as a window, a wall or an exhibition space, and then supplied with power to maintain a standby mode (S101).

Thereafter, the contact point of the test switch 211 is selected ON to confirm that the installation of the light transmitting device 100 and the light receiving device 200 is installed at an angle of receiving an infrared signal with an optimal sensitivity.

At this time, the control unit 214 in the light receiving device 200 determines whether the test mode for requesting the installation angle is detected from the test switch 211, and enters the test mode when the confirmation request is detected (S102).

Subsequently, the light receiving unit 212 condenses the infrared signal having the set frequency band radiated from the light transmitting device 100 at a predetermined direction angle, and then extracts only the pure infrared signal through an optical filter (not shown) to obtain the F / V converter 213. (S103).

The F / V converter 213 converts the frequency of the received infrared signal into a voltage and applies it to the controller 214 (S104).

The controller 214 compares the voltage of the received infrared signal with the preset reference voltage applied through the F / V converter 213 (S105) to determine whether the voltage of the received infrared signal is within a preset reference voltage range. Determine (S106).

In the determination of S106, when the voltage of the received infrared signal is detected within a set reference voltage, for example, within a range of 3V to 5V, the installation angles of the light transmitting device 100 and the light receiving device 200 are abnormal. It is determined that to maintain (S107).

Then, by controlling the buzzer drive unit 215 to send out an alarm sound, for example, "beep ~, beep ~, beep ~, beep ~, beep ~" through the buzzer (spk) step S103. Return to (S108).

In the determination of S106, the controller 214 determines that the installation angle maintains the optimum sensitivity when the voltage of the received infrared signal is within a set reference voltage, for example, 3V to 5V (S109).

Then, the buzzer driver 215 is controlled to transmit the guide sound “beep ~~~~~~~” through the buzzer spk (S110).

Thereafter, the controller proceeds to the time counter (S111) and determines whether the set predetermined time has elapsed (S112). If the set time has not elapsed, the process returns to the step S111 to continue the time counter. ) Ends the test mode by turning off the contact of the test switch 211 (S113).

Upon exiting the test mode, the system automatically enters the monitoring mode and monitors whether an unauthorized intruder is generated in the installed area (S114).

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a view schematically showing the configuration of an infrared detector according to an embodiment of the present invention.

2 is a flowchart for performing installation verification in an infrared detector according to an embodiment of the present invention.

3 is a diagram illustrating an example of an installation state of an infrared detector.

4 is a view showing the optical unit structure of a general infrared detector.

<Explanation of symbols for the main parts of the drawings>

100: light emitting device 200: light receiving device

211: test switch 212: light receiving unit

213: F / V converter 214: controller

215: buzzer drive part spk: buzzer

Claims (6)

In the infrared detector which consists of a light projector and a light receiver, A test switch for testing an installation angle between the light transmitting device and the light receiving device installed in the surveillance region; A light-receiving unit for collecting only the infrared signal having a predetermined frequency band radiated from the light transmitting device at a predetermined direction and then filtering to extract only the pure infrared signal; An F / V converter for converting a frequency of the infrared signal received by the light receiver into a voltage; Entering the test mode to check the installation angle of the light transmitting device and the light receiving device according to the on of the test switch, and determines whether or not the normal installation by comparing the voltage of the received infrared signal applied through the F / V converter and the set reference voltage. And a control unit controlling whether or not the alarm sound is transmitted accordingly. Infrared detector including a buzzer driver for transmitting an alarm for confirming the installation angle of the light transmitting device and the light receiving device through a buzzer according to the control signal of the control unit. The method of claim 1, The control unit is an infrared detector when the voltage of the received infrared signal is included in the range of the set reference voltage determines that the light transmitting device and the light receiving device is a normal installation that maintains the optimum sensitivity and transmits the guide sound accordingly. The method of claim 1, The controller detects an abnormal installation of the light emitting device and the light receiving device when the voltage of the received infrared signal is not within the range of the set reference voltage and transmits an alarm sound accordingly. The method of claim 1, The control unit automatically turns off the test switch after a set time when it is determined that the light emitting device and the light receiving device are normally installed in the test mode, and enters the monitoring mode. Installing a light emitting device and a light receiving device in a surveillance area and then requesting confirmation of installation using a test switch; Entering a test mode and receiving an infrared signal emitted from the light transmitting device according to a request for confirming installation through the test switch; Converting a frequency of the received infrared signal into a voltage and comparing the frequency with a set reference voltage; Checking an installation state of the light emitting device and the light receiving device according to the comparison result and transmitting an alarm sound according thereto; And if the installation of the light emitting device and the light receiving device is determined to be normal, ending a test mode after a predetermined time and executing a monitoring mode. The method of claim 5, In the comparison between the received infrared signal voltage and the reference voltage, if the voltage of the received infrared signal is included in the range of the reference voltage (3V to 5V), it is determined to be normal installation, and if not included in the range of the reference voltage, it is determined to be abnormal installation. How to check the installation of the infrared sensor.
KR1020070094049A 2007-09-17 2007-09-17 Device for sensing assembly using infrared rays and method for equipment confirmation thereof KR20090028910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070094049A KR20090028910A (en) 2007-09-17 2007-09-17 Device for sensing assembly using infrared rays and method for equipment confirmation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070094049A KR20090028910A (en) 2007-09-17 2007-09-17 Device for sensing assembly using infrared rays and method for equipment confirmation thereof

Publications (1)

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KR20090028910A true KR20090028910A (en) 2009-03-20

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Country Status (1)

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