JP2004157102A - Microwave sensor - Google Patents

Microwave sensor Download PDF

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Publication number
JP2004157102A
JP2004157102A JP2002364267A JP2002364267A JP2004157102A JP 2004157102 A JP2004157102 A JP 2004157102A JP 2002364267 A JP2002364267 A JP 2002364267A JP 2002364267 A JP2002364267 A JP 2002364267A JP 2004157102 A JP2004157102 A JP 2004157102A
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signal
sensitivity
level
microwave sensor
unit
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Hyeon Taek Han
賢澤 韓
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TAESUNG MIS CO Ltd
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TAESUNG MIS CO Ltd
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50Systems of measurement based on relative movement of target
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small and practical microwave sensor for internal safety usable under any environment. <P>SOLUTION: A microwave sensor module part 10 detects a moving body by a frequency of an emitted microwave within a safety area and an intermediate frequency, and a signal amplifying and gain adjusting part 20 amplifies a very weak signal from the element 10 to gain-adjust an amplified signal, a signal level adjusting part 30 readjusts a gain adjusted signal level from the element 20, a sensitivity level adjusting part 40 adjusts a sensitivity signal level in response to a size of the moving body and a distance therefrom, to be subdivided, and a control part 50 comparison-measures the gain adjusted signal levels from the elements 30,40 with a detection signal from the element 10 using the sensitivity signal level as a reference to control an alarm output, an operation for an alarm and sensitivity signal display. An alarm output part 60, the alarm 70 and a signal display 80 are operated based on a control signal from the element 50, when a moving signal level of the body is a prescribed level or more. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、マイクロ波感知器に関し、より詳しくは、ドップラー原理(Dopplerprinciple)を用いたマイクロ波センサであって、いずれの環境でも使用可能であり小さくかつ実用的な内部保安用マイクロ波感知器に関する。
【0002】
【従来の技術】
最近、各家庭や会社は、自分及び家族の生命と財産を守るために、保安会社が提供する様々な保安システムを利用している。これは犯罪を予防するための対策の一環である。近頃は、個人住宅やアパート、商店、ビルなど広範囲にわたって個別世代防犯システム、防災システム、共同玄関出入統制システム、駐車管理システム、家庭自動化システム、CCTV監視装置などの保安システムを用いて自分の生命と財産の安全を確保しようとしている。
【0003】
このような保安システムは、顧客に外部侵入などの異常が発生すると、これを確認して警察及び自身の出動車両を出動させて緊急状況に対する措置を取り、出入を統制し、勤怠及び駐車を管理し、警備区域内に設置されたCCTVの映像を提供する。その他にも、様々な種類と方法で各顧客に必要な安全事項をモニタリングするシステムである。
【0004】
このような保安システムには赤外線方式が広く用いられている。
【0005】
赤外線方式は、赤外線ビームの遮断時に感知する方法であって、感知領域が10〜15m以内であり、自動警報機能が可能であり、全天候下での作動が可能であるという利点を有する。
【0006】
ところが、上記の赤外線方式は次のような問題点を抱えている。
【0007】
第一に、障害発生地域を把握することが難しく、維持保守のために赤外線センサをよく交替しなければならないという不便さがある。
【0008】
第二に、侵入者(人など)以外の小さな動物、又は赤外線の遮断が可能な落ち葉、紙などによる頻繁な警報発生によって労力及び時間が浪費されるという問題点がある。
【0009】
第三に、感知距離内の侵入有無状態を感知するだけであり、物体の大きさ及び移動速度を確認することができず、侵入意図のある物体と侵入意図のない物体との区分が難しいという欠点がある。
【0010】
【発明が解決しようとする課題】
従って、本発明は、このような問題点を解決するためのものであって、その目的は、感知距離内侵入物体の体積を認識して侵入物体の大きさ及び移動速度を確認することができ、侵入意図のある物体と侵入意図のない物体との区分を可能にすることにより、いずれの環境でも使用可能であり小さくかつ実用的な内部保安用マイクロ波感知器を提供することにある。
【0011】
【課題を解決するための手段】
上記目的を達成するために、本発明は、保安を要する地域に設置され、物体の体積を認識、感知するマイクロ波感知器において、保安区域における放射されたマイクロ波の周波数及び中間周波数によって、動く物体を感知するマイクロ波センサモジュール部と、前記マイクロ波センサモジュールから伝送された微弱な信号を増幅し、増幅された信号の利得調整を行う信号増幅及び利得調整部と、前記信号増幅及び利得調整部から出力された利得調整信号レベルを再調整する信号レベル調整部と、動く物体の大きさ及び距離に応じて感度信号レベルを調整して細分化する感度レベル調整部と、前記信号レベル調整部及び感度レベル調整部からそれぞれ細分化されて出力された利得調整信号レベルと感度信号レベルを基準としてマイクロ波センサモジュール部の感知信号と比較測定し、アラーム出力、警報器作動及び感度信号表示を制御する制御部と、前記制御部の制御信号に基づいて、物体の動き信号レベルが予め設定された感度レベル以上であれば作動するアラーム出力部と警報器と信号表示器とを含むことを特徴とするマイクロ波感知器を提供する。
【0012】
【発明の実施の形態】
以下、本発明の実施形態に係る構成及びその作用を添付図に基づいて詳細に説明する。
【0013】
図1は本発明に係るマイクロ波感知器の感知距離及び保安区域範囲を示す概念図である。
【0014】
本発明によるマイクロ波感知器は、ドップラー原理を用いたマイクロ波センサであって、内容保安を要する地域に設置されて物体の体積を認識感知する、いずれの環境でも使用可能であり小さくかつ実用的な体積監視システムである。
【0015】
このようなマイクロ波感知器は、感知距離内の侵入物体の体積を認識して侵入物体の大きさ及び移動速度を確認することができ、侵入意図のある物体と侵入意図のない物体との区分を可能にする。
【0016】
また、図1の(a)及び(b)に示すように、1m〜15mの感知距離調整が可能であり、垂直上40°角度、水平上80°角度の完璧な保安区域の形成により内部空間を侵入者から安全に保護することができる。
【0017】
このようなマイクロ波感知器は、センサと共に取り付けられたブラケット(Bracket)を用いて、所望の壁または天井に簡便に設置することができ、センサとブラケットを連結するジョイント(joint)部分を用いて設置方向を測定し、固定させる。
【0018】
図2は本発明に係るマイクロ波感知器を説明するためのブロック構成図である。
【0019】
図2を参照すると、本発明に係るマイクロ波感知器は、マイクロ波センサモジュール部10、信号増幅及び利得調整部20、信号レベル調整部30、感度レベル調整部40、制御部50、アラーム出力部60、警報器70及び信号表示器80を含んでなる。
【0020】
前記マイクロ波センサモジュール部10は、ドップラー原理を用いて保安区域における放射されたマイクロ波の周波数及び中間周波数によって、動く物体を感知する。
【0021】
この際、マイクロ波の周波数及び中間周波数は、10.525GHz範囲を使用し、動く感知対象物体の大きさ及び条件に応じて、対象物体の感知距離は1〜15Mである。
【0022】
前記信号増幅及び利得調整部20は、マイクロ波センサモジュール部10から伝送された微弱な信号を増幅し、増幅された信号の利得を調整する機能を行うが、制御部50の制御信号に基づいて信号増幅及び利得調整が統制される。
【0023】
前記信号レベル調整部30は、信号増幅及び利得調整部20から出力された利得調整信号レベルを再調整する機能を行う。
【0024】
前記感度レベル調整部40は、動く物体の大きさ及び距離に応じて感度信号レベルを調整して細分化する機能を行う。
【0025】
この際、前記感度レベルの調整は1〜3段階に細分化され、動く物体の大きさ及び距離に応じて感度レベルの細分化を再調整することができる。
【0026】
前記制御部50は、信号レベル調整部30及び感度レベル調整部40からそれぞれ細分化されて出力された利得調整信号レベルと感度信号レベルを基準としてマイクロ波センサモジュール部10の感知信号と比較測定し、アラーム出力、警報器作動及び感度信号表示を制御する機能を行う。
【0027】
前記アラーム出力部60、警報器70及び信号表示器80は、制御部50の制御信号に基づいて、物体の動き信号レベルが予め設定された感度レベル以上であれば、アラームを出力し、警報音を発生し、信号レベルを表示する。
【0028】
このように構成された本発明に係るマイクロ波感知器は、物体の動きによるマイクロ波センサモジュール部10の中間周波数の信号を受け、信号増幅及び利得調整部20と信号レベル調整部30により調整された信号に対し、感度レベル調整部40によりレベルを調整し制御部50で増幅利得を調整した後、センサの信号を分析して、センサ信号が設定された感度レベルであれば、一定の時間アラーム出力、警報器作動、感度信号表示を行わせる。
【0029】
【発明の効果】
以上述べたように、本発明によるマイクロ波感知器は、感知距離内侵入物体の体積を認識し、侵入物体の大きさ及び移動速度を確認することができ、侵入意図のある物体と侵入意図のない物体との区分を可能にする。
【0030】
また、侵入が発生すると、感知器は警報を鳴らすが、警報を鳴らすレベル値を運営者が設定することができる。情報レベル値の設定時に侵入意図のない小さな物体、例えば落ち葉のような植物や、猫、犬のような動物などに対しては警報から除外し、侵入可能な人間などの大きな物体に限って警報を鳴らすようなレベルを設定することができる。
【0031】
また、マイクロ波感知器は、警報レベル値の設定が可能なので、既存の無人感知器の最も大きな欠点の誤警報を防止することができ、完璧な保安区域を要する場所に設置することにより、侵入者から安全に内部空間の財産上の保護を行うことができる。
【図面の簡単な説明】
【図1】本発明に係るマイクロ波感知器の感知距離及び保安距離範囲を示す概念図である。
【図2】本発明に係るマイクロ波感知器を説明するためのブロック構成図である。
【符号の説明】
10 マイクロ波センサモジュール部
20 信号増幅及び利得調整部
30 信号レベル調整部
40 感度レベル調整部
50 制御部
60 アラーム出力部
70 警報器
80 信号表示器
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a microwave sensor, and more particularly, to a microwave sensor using the Doppler principle, which can be used in any environment, and which is small and practical. .
[0002]
[Prior art]
Recently, homes and businesses have used various security systems provided by security companies to protect the lives and property of themselves and their families. This is part of measures to prevent crime. In recent years, personal life and apartments, shops, buildings and other widespread individual generation security system, disaster prevention system, common entrance control system, parking management system, home automation system, CCTV monitoring system and other security systems to protect your life. You are trying to secure your property.
[0003]
Such a security system, when an abnormality such as an external intrusion occurs to the customer, confirms this, dispatches the police and its own dispatched vehicle to take measures for emergency situations, controls entry and exit, manages attendance and parking And provide an image of the CCTV installed in the security area. In addition, it is a system that monitors the safety items required for each customer in various types and methods.
[0004]
Infrared systems are widely used for such security systems.
[0005]
The infrared method is a method of detecting when an infrared beam is blocked, and has an advantage that a sensing area is within 10 to 15 m, an automatic alarm function is possible, and operation is possible in all weather.
[0006]
However, the infrared method has the following problems.
[0007]
First, there is the inconvenience that it is difficult to grasp the area where the fault has occurred, and the infrared sensor must be replaced frequently for maintenance.
[0008]
Second, labor and time are wasted due to frequent alarms generated by small animals other than intruders (eg, humans), falling leaves that can block infrared rays, and paper.
[0009]
Third, it only senses the presence or absence of intrusion within the sensing distance, and cannot confirm the size and moving speed of the object, making it difficult to distinguish between objects with intent to intrude and objects without intent to intrude. There are drawbacks.
[0010]
[Problems to be solved by the invention]
Therefore, the present invention is to solve such a problem, and its purpose is to recognize the volume of the intruding object within the sensing distance and to confirm the size and moving speed of the intruding object. Another object of the present invention is to provide a small and practical internal security microwave sensor that can be used in any environment by enabling the object to be classified into an object with no intention of intrusion and an object with no intention to intrude.
[0011]
[Means for Solving the Problems]
To achieve the above object, the present invention is directed to a microwave sensor installed in an area where security is required, which recognizes and senses the volume of an object, and moves according to the frequency and the intermediate frequency of the radiated microwave in the security area. A microwave sensor module unit for sensing an object, a signal amplification and gain adjustment unit for amplifying a weak signal transmitted from the microwave sensor module and adjusting the gain of the amplified signal, and the signal amplification and gain adjustment A signal level adjusting unit for re-adjusting a gain adjustment signal level output from the unit, a sensitivity level adjusting unit for adjusting a sensitivity signal level in accordance with the size and distance of a moving object and subdividing the signal, and the signal level adjusting unit And a microwave sensor based on a gain adjustment signal level and a sensitivity signal level which are subdivided and output from the sensitivity level adjustment unit. A control unit for comparing and measuring the sensing signal of the joule unit and controlling the alarm output, the alarm device operation and the display of the sensitivity signal; and based on the control signal of the control unit, a motion signal level of the object is equal to or higher than a preset sensitivity level. And a microwave detector including an alarm output unit, an alarm device, and a signal indicator that are activated.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a configuration and an operation thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[0013]
FIG. 1 is a conceptual diagram illustrating a sensing distance and a security area range of a microwave sensor according to the present invention.
[0014]
The microwave sensor according to the present invention is a microwave sensor using the Doppler principle, which is installed in an area where content security is required and recognizes and senses the volume of an object. It is a simple volume monitoring system.
[0015]
Such a microwave detector can recognize the volume of an intruding object within a sensing distance and check the size and moving speed of the intruding object, and can distinguish between an intruding object and an unintruding object. Enable.
[0016]
Also, as shown in FIGS. 1 (a) and 1 (b), the sensing distance can be adjusted from 1 m to 15 m, and a perfect security area having a vertical angle of 40 ° and a horizontal angle of 80 ° is formed to form an internal space. Can be safely protected from intruders.
[0017]
Such a microwave sensor can be easily installed on a desired wall or ceiling by using a bracket attached with the sensor, and by using a joint for connecting the sensor and the bracket. Measure the installation direction and fix.
[0018]
FIG. 2 is a block diagram illustrating a microwave detector according to the present invention.
[0019]
Referring to FIG. 2, the microwave sensor according to the present invention includes a microwave sensor module unit 10, a signal amplification and gain adjustment unit 20, a signal level adjustment unit 30, a sensitivity level adjustment unit 40, a control unit 50, an alarm output unit. 60, an alarm 70, and a signal display 80.
[0020]
The microwave sensor module unit 10 detects a moving object according to the frequency and the intermediate frequency of the radiated microwave in the security area using the Doppler principle.
[0021]
At this time, the microwave frequency and the intermediate frequency use a range of 10.525 GHz, and the sensing distance of the target object is 1 to 15M according to the size and condition of the moving target object.
[0022]
The signal amplification and gain adjustment unit 20 performs a function of amplifying a weak signal transmitted from the microwave sensor module unit 10 and adjusting a gain of the amplified signal, based on a control signal of the control unit 50. Signal amplification and gain adjustment are controlled.
[0023]
The signal level adjustment unit 30 performs a function of readjusting the level of the gain adjustment signal output from the signal amplification and gain adjustment unit 20.
[0024]
The sensitivity level adjuster 40 performs a function of adjusting a sensitivity signal level according to the size and distance of a moving object to subdivide the sensitivity signal.
[0025]
At this time, the adjustment of the sensitivity level is subdivided into one to three stages, and the subdivision of the sensitivity level can be readjusted according to the size and distance of the moving object.
[0026]
The control unit 50 compares and measures the gain adjustment signal level and the sensitivity signal level output from the signal level adjustment unit 30 and the sensitivity level adjustment unit 40 with the sensing signal of the microwave sensor module unit 10 as a reference. It performs the functions of controlling the alarm output, alarm operation and sensitivity signal display.
[0027]
The alarm output unit 60, the alarm 70, and the signal display 80 output an alarm based on the control signal of the control unit 50 if the motion signal level of the object is equal to or higher than a preset sensitivity level, and output an alarm sound. And displays the signal level.
[0028]
The microwave sensor according to the present invention configured as described above receives the signal of the intermediate frequency of the microwave sensor module unit 10 due to the movement of the object, and is adjusted by the signal amplification and gain adjustment unit 20 and the signal level adjustment unit 30. After the signal is adjusted by the sensitivity level adjustment unit 40 and the amplification gain is adjusted by the control unit 50, the signal of the sensor is analyzed. Perform output, alarm activation, and sensitivity signal display.
[0029]
【The invention's effect】
As described above, the microwave sensor according to the present invention can recognize the volume of the intruding object within the sensing distance, check the size and moving speed of the intruding object, and determine the intruding object and the intruding intention. Enables classification from non-existent objects.
[0030]
Also, when an intrusion occurs, the sensor sounds an alarm, and an operator can set a level value at which the alarm sounds. When setting the information level value, small objects that do not intend to invade, such as plants such as fallen leaves, animals such as cats and dogs, are excluded from the alarm, and only large objects such as invading humans are alarmed. You can set a level that sounds like.
[0031]
In addition, since the microwave detector can set the alarm level value, it can prevent the false alarm of the biggest disadvantage of the existing unmanned detector, and by installing it in a place requiring a perfect security area, Can safely protect the property of the internal space from persons.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing a sensing distance and a security distance range of a microwave sensor according to the present invention.
FIG. 2 is a block diagram illustrating a microwave detector according to the present invention.
[Explanation of symbols]
Reference Signs List 10 microwave sensor module unit 20 signal amplification and gain adjustment unit 30 signal level adjustment unit 40 sensitivity level adjustment unit 50 control unit 60 alarm output unit 70 alarm device 80 signal display

Claims (3)

保安を要する地域に設置され、物体の体積を認識、感知するマイクロ波感知器において、
保安区域における放射されたマイクロ波の周波数及び中間周波数によって、動く物体を感知するマイクロ波センサモジュール部と、
前記マイクロ波センサモジュール部から伝送された微弱な信号を増幅し、増幅された信号の利得調整を行う信号増幅及び利得調整部と、
前記信号増幅及び利得調整部から出力された利得調整信号レベルを再調整する信号レベル調整部と、
動く物体の大きさ及び距離に応じて感度信号レベルを調整して細分化する感度レベル調整部と、
前記信号レベル調整部及び感度レベル調整部からそれぞれ細分化されて出力された利得調整信号レベルと感度信号レベルを基準としてマイクロ波センサモジュール部の感知信号と比較測定し、アラーム出力、警報器作動及び感度信号表示を制御する制御部と、
前記制御部の制御信号に基づいて、物体の動き信号レベルが予め設定された感度レベル以上であれば作動するアラーム出力部と警報器と信号表示器と
を含むことを特徴とするマイクロ波感知器。
In a microwave detector that is installed in an area where security is required and recognizes and senses the volume of an object,
A microwave sensor module unit for sensing a moving object by a frequency and an intermediate frequency of the radiated microwave in the security area;
Amplifying a weak signal transmitted from the microwave sensor module unit, a signal amplification and gain adjustment unit that performs gain adjustment of the amplified signal,
A signal level adjustment unit for re-adjusting the gain adjustment signal level output from the signal amplification and gain adjustment unit,
A sensitivity level adjustment unit that adjusts the sensitivity signal level according to the size and distance of the moving object to subdivide the sensitivity signal level,
The signal level adjustment unit and the sensitivity level adjustment unit are compared with the sensing signal of the microwave sensor module unit based on the gain adjustment signal level and the sensitivity signal level which are subdivided and output, respectively, to output an alarm, an alarm device operation, and the like. A control unit for controlling a sensitivity signal display;
A microwave sensor comprising: an alarm output unit, an alarm device, and a signal display that are activated when a motion signal level of an object is equal to or higher than a predetermined sensitivity level based on a control signal of the control unit. .
前記マイクロ波センサモジュール部のマイクロ波の周波数及び中間周波数は10.525GHzであることを特徴とする請求項1記載のマイクロ波感知器。2. The microwave sensor according to claim 1, wherein the microwave frequency and the intermediate frequency of the microwave sensor module are 10.525 GHz. 前記感度レベル調整部の感度レベルは、1〜3段階に細分化され、動く物体の大きさ及び距離に応じて感度レベルの細分化を再調整することが可能であることを特徴とする請求項1記載のマイクロ波感知器。The sensitivity level of the sensitivity level adjustment unit may be subdivided into one to three stages, and the subdivision of the sensitivity level may be readjusted according to the size and distance of a moving object. 2. The microwave sensor according to claim 1.
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