JPH05203762A - Signal processor - Google Patents
Signal processorInfo
- Publication number
- JPH05203762A JPH05203762A JP3300092A JP3300092A JPH05203762A JP H05203762 A JPH05203762 A JP H05203762A JP 3300092 A JP3300092 A JP 3300092A JP 3300092 A JP3300092 A JP 3300092A JP H05203762 A JPH05203762 A JP H05203762A
- Authority
- JP
- Japan
- Prior art keywords
- pyroelectric element
- photoelectric conversion
- pyroelectric
- person
- amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Geophysics And Detection Of Objects (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、対象物体の動きの有
無，方向などの情報を検出する信号処理装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal processing device for detecting information such as presence / absence and direction of movement of a target object.
【０００２】[0002]
【従来の技術】図７は従来の信号処理装置の構成を説明
する図であり、図７（ａ）は光電変換装置の構成を示す
平面図，図７（ｂ）はブロック回路図である。図７
（ａ）において、１は光電変換素子として例えば４個の
焦電素子エレメントを組み合わせて構成される焦電素子
であり、この焦電素子１は第１の焦電素子エレメント１
ａと第２の焦電素子エレメント１ｂとが直列接続されて
形成された第１の焦電素子１1 と、第３の焦電素子エレ
メント１ｃと第４の焦電素子エレメント１ｄとが直列接
続されて形成された第２の焦電素子１2 とから構成され
ている。この場合、各焦電素子エレメント１ａ，１ｂ，
１ｃ，１ｄは、互いに一定のピッチで配列されて配置さ
れている。2. Description of the Related Art FIG. 7 is a diagram for explaining the configuration of a conventional signal processing device, FIG. 7 (a) is a plan view showing the configuration of a photoelectric conversion device, and FIG. 7 (b) is a block circuit diagram. Figure 7
In (a), 1 is a pyroelectric element configured by combining, for example, four pyroelectric element elements as a photoelectric conversion element, and the pyroelectric element 1 is the first pyroelectric element element 1.
a and the second pyroelectric element 1b are connected in series, the first pyroelectric element 11 is formed, the third pyroelectric element 1c, and the fourth pyroelectric element 1d are connected in series. And the second pyroelectric element 1 2 formed in this manner. In this case, each pyroelectric element 1a, 1b,
1c and 1d are arranged and arranged at a constant pitch.
【０００３】また、第１の焦電素子１1 には出力端子１
Ａおよびグランド端子１Ｂが設けられ、第２の焦電素子
１2 には出力端子１Ｃおよびグランド端子１Ｄが設けら
れており、第１の焦電素子１1 の第１の焦電素子エレメ
ント１ａおよび第２の焦電素子１2 の第３の焦電素子エ
レメント１ｃはそれぞれ正極に設定され、第１の焦電素
子１1 の第２の焦電素子エレメント１ｂおよび第２の焦
電素子１2 の第４の焦電素子エレメント１ｄはそれぞれ
負極に設定されている。[0003] In addition, in the first pyroelectric element 1 first output terminal 1
A and ground terminal 1B is provided on the second pyroelectric element 1 2 is provided with an output terminal 1C and the ground terminals 1D, the first pyroelectric element element 1a of the first pyroelectric element 1 1 and The third pyroelectric element 1c of the second pyroelectric element 1 2 is set to the positive electrode, and the second pyroelectric element 1b and the second pyroelectric element 1 2 of the first pyroelectric element 1 1 are set. The fourth pyroelectric element 1d is set to the negative electrode.
【０００４】また、図７（ｂ）において、２は焦電素子
１の出力端子１Ａ，グランド端子１Ｂおよび出力端子１
Ｃ，グランド端子１Ｄがそれぞれ接続されて焦電素子１
の出力信号を増幅する前置増幅器、３は第１の焦電素子
１1 の出力信号を所望の利得にさらに増幅する増幅器、
４は第２の焦電素子１2 の出力信号を所望の利得にさら
に増幅する増幅器、５は増幅器３および増幅器４の出力
信号に基づいて対象物体としての人間の有無，視野のい
ずれの方向（左右方向）に動いたかなどの人間の移動に
関する情報を判別する判別回路である。Further, in FIG. 7B, 2 is an output terminal 1A, a ground terminal 1B and an output terminal 1 of the pyroelectric element 1.
Pyroelectric element 1 with C and ground terminal 1D respectively connected
A preamplifier for amplifying the output signal of the first pyroelectric element 3 and an amplifier for further amplifying the output signal of the first pyroelectric element 1 1 to a desired gain,
Reference numeral 4 is an amplifier for further amplifying the output signal of the second pyroelectric element 1 2 to a desired gain, and 5 is the presence / absence of a human being as a target object based on the output signals of the amplifier 3 and the amplifier 4 and which direction of the visual field ( This is a discriminating circuit for discriminating information about the movement of a person, such as whether the person has moved in the left-right direction.
【０００５】このように構成された信号処理装置は、図
８に示すように焦電素子１に図示しない光学系を組み合
わせて例えば天井Ｕなどに取り付けてこの信号処理装置
Ｓ下に床Ｅを移動する人間Ｍを検出すると、図９〜図１
３に示すような情報が得られる。In the signal processing apparatus thus constructed, as shown in FIG. 8, the pyroelectric element 1 is combined with an optical system (not shown) and attached to, for example, the ceiling U or the like, and the floor E is moved under the signal processing apparatus S. 9 to FIG.
The information as shown in 3 is obtained.
【０００６】すなわち図９（ａ）に示すように焦電素子
１の上半分（第１の焦電素子エレメント１ａ，第３の焦
電素子エレメント１ｃの配列方向）を人間が矢印方向に
横切ると、図７の増幅器４からは図９（ｂ）に示すよう
な出力信号が得られ、増幅器３から図９（ｃ）に示すよ
うな出力信号が得られる。That is, as shown in FIG. 9A, when a person crosses the upper half of the pyroelectric element 1 (arrangement direction of the first pyroelectric element element 1a and the third pyroelectric element element 1c) in the arrow direction, The output signal as shown in FIG. 9B is obtained from the amplifier 4 in FIG. 7, and the output signal as shown in FIG. 9C is obtained from the amplifier 3.
【０００７】また、図１０（ａ）に示すように焦電素子
１の左半分（第１の焦電素子エレメント１ａ，第２の焦
電素子エレメント１ｂの配列方向）を人間が矢印方向に
横切ると、増幅器４からは図１０（ｂ）に示すような出
力信号が得られ、増幅器３から図１０（ｃ）に示す出力
信号が得られる。Further, as shown in FIG. 10 (a), a person crosses the left half of the pyroelectric element 1 (the arrangement direction of the first pyroelectric element element 1a and the second pyroelectric element element 1b) in the arrow direction. Then, the output signal as shown in FIG. 10 (b) is obtained from the amplifier 4, and the output signal as shown in FIG. 10 (c) is obtained from the amplifier 3.
【０００８】また、図１１（ａ）に示すように焦電素子
１の斜め方向（第２の焦電素子エレメント１ｂ，第３の
焦電素子エレメント１ｃの配列方向）を人間が矢印方向
に横切ると、増幅器４からは図１１（ｂ）に示すような
出力信号が得られ、増幅器３から図１１（ｃ）に示す出
力信号が得られる。Further, as shown in FIG. 11 (a), a person crosses the oblique direction of the pyroelectric element 1 (arrangement direction of the second pyroelectric element element 1b and the third pyroelectric element element 1c) in the arrow direction. Then, the output signal shown in FIG. 11B is obtained from the amplifier 4, and the output signal shown in FIG. 11C is obtained from the amplifier 3.
【０００９】また、図１２（ａ）に示すように焦電素子
１の２方向に跨って（第１の焦電素子エレメント１ａ，
第３の焦電素子エレメント１ｃの配列方向または第２の
焦電素子エレメント１ｂ，第４の焦電素子エレメント１
ｄの配列方向）を人間が矢印方向に横切ると、増幅器４
からは図１２（ｂ）に示すような出力信号が得られ、増
幅器３から図１２（ｃ）に示す出力信号が得られる。Further, as shown in FIG. 12A, the pyroelectric element 1 is straddled in two directions (first pyroelectric element 1a,
Arrangement direction of the third pyroelectric element 1c or the second pyroelectric element 1b, the fourth pyroelectric element 1
When a person crosses the (d array direction) in the direction of the arrow, the amplifier 4
The output signal shown in FIG. 12 (b) is obtained from the amplifier, and the output signal shown in FIG. 12 (c) is obtained from the amplifier 3.
【００１０】また、図１３（ａ）に示すように焦電素子
１の２方向に跨って（第１の焦電素子エレメント１ａ，
第２の焦電素子エレメント１ｂの配列方向または第３の
焦電素子エレメント１ｃ，第４の焦電素子エレメント１
ｄの配列方向）を人間が矢印方向に横切ると、増幅器４
からは図１３（ｂ）に示すような出力信号が得られ、増
幅器３から図１３（ｃ）に示すような出力信号が得られ
る。Further, as shown in FIG. 13A, the pyroelectric element 1 is extended in two directions (first pyroelectric element 1a,
Arrangement direction of second pyroelectric element 1b or third pyroelectric element 1c, fourth pyroelectric element 1
When a person crosses the (d array direction) in the direction of the arrow, the amplifier 4
13B, an output signal as shown in FIG. 13B is obtained, and an output signal as shown in FIG. 13C is obtained from the amplifier 3.
【００１１】これらの出力信号は判別回路５内でバンド
パスフィルタにより検知すべき移動する人間の信号周波
数を通過させ、ウインドコンパレータによりこの信号周
波数の変化が閾値を越えたときに出力端子５ａに信号出
力が得られ、人間の移動に関する情報が得られることに
なる。These output signals pass the moving human signal frequency to be detected by the bandpass filter in the discrimination circuit 5, and the window comparator outputs a signal to the output terminal 5a when the change of the signal frequency exceeds the threshold value. The output will be obtained and information about the movement of the person will be obtained.
【００１２】[0012]
【発明が解決しようとする課題】しかしながら、このよ
うに構成された信号処理装置は、前述した図１２に示す
ように人間が焦電素子１の第１の焦電素子エレメント１
ａ，第３の焦電素子エレメント１ｃの配列方向および第
２の焦電素子エレメント１ｂ，第４の焦電素子エレメン
ト１ｄの配列方向の２方向に跨って人間が矢印方向に移
動すると、増幅器４および増幅器３から出力信号が全く
得られず、人間の情報検出が不可能となるという問題が
あった。つまり焦電素子１のある設置方向に対して人間
の移動方向が相対的に一致した場合には人間の移動に関
する情報が得られなかった。However, in the signal processing device configured as described above, as shown in FIG. 12 described above, the first pyroelectric element 1 of the pyroelectric element 1 is a human being.
a, the third pyroelectric element 1c is arranged in the array direction, and the second pyroelectric element element 1b and the fourth pyroelectric element 1d are arranged in the same direction. Also, there is a problem that an output signal cannot be obtained from the amplifier 3 at all, and it becomes impossible to detect human information. That is, when the moving direction of the person is relatively coincident with the installation direction of the pyroelectric element 1, information about the movement of the person cannot be obtained.
【００１３】したがって本発明は、前述した従来の課題
を解決するためになされたものであり、その目的は、全
ての方向からの人間の移動に関する情報を検出すること
ができる信号処理装置を提供することにある。Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to provide a signal processing device capable of detecting information relating to the movement of a human being from all directions. Especially.
【００１４】[0014]
【課題を解決するための手段】このような目的を達成す
るために本発明による信号処理装置は、第１の光電変換
素子と第２の光電変換素子とから構成される光電変換装
置において、第２の光電変換素子エレメントと第４の光
電変換素子エレメントとをたすきがけ接続するものであ
る。つまり第１の光電変換素子エレメントと第４の光電
変換素子エレメントとを直列接続して第１の光電変換素
子を形成し、第３の光電変換素子エレメントと第２の光
電変換素子エレメントとを直列接続して第２の光電変換
素子を形成して構成するものである。In order to achieve such an object, a signal processing device according to the present invention is a photoelectric conversion device including a first photoelectric conversion element and a second photoelectric conversion element. The second photoelectric conversion element element and the fourth photoelectric conversion element element are cross-connected. That is, the first photoelectric conversion element element and the fourth photoelectric conversion element element are connected in series to form a first photoelectric conversion element, and the third photoelectric conversion element element and the second photoelectric conversion element element are connected in series. The second photoelectric conversion element is connected to form a second photoelectric conversion element.
【００１５】[0015]
【作用】本発明においては、光電変換素子を構成する第
１の光電変換素子エレメント，第３の光電変換素子エレ
メントの配列方向および第２の光電変換素子エレメン
ト，第４の光電変換素子エレメントの配列方向の２つに
跨って人間が矢印方向に横切っても増幅器から出力信号
が出力される。In the present invention, the arrangement direction of the first photoelectric conversion element element and the third photoelectric conversion element element, which constitutes the photoelectric conversion element, and the arrangement of the second photoelectric conversion element element and the fourth photoelectric conversion element element. The output signal is output from the amplifier even if a person crosses the two directions in the direction of the arrow.
【００１６】[0016]
【実施例】以下、図面を用いて本発明の実施例を詳細に
説明する。図１は本発明による信号処理装置の一実施例
による構成を示すブロック図であり、前述の図と同一部
分には同一符号を付しその説明は省略する。本実施例で
は、光電変換素子として例えば焦電素子を用いた場合に
ついて説明する。同図において、１′は例えば４個の焦
電素子エレメントから構成される焦電素子１′であり、
この焦電素子１′は、第１の焦電素子エレメント１ａと
第４の焦電素子エレメント１ｄとが電気的に直列接続さ
れて形成された第１の焦電素子１1 ′と、第３の焦電素
子エレメント１ｃと第２の焦電素子エレメント１ｂとが
電気的に直列接続されて形成された第２の焦電素子１
2 ′とから構成されている。Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a signal processing device according to the present invention. The same parts as those in the above-mentioned drawings are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the case where a pyroelectric element is used as the photoelectric conversion element will be described. In the figure, 1'is a pyroelectric element 1'consisting of, for example, four pyroelectric element elements,
The pyroelectric element 1'includes a first pyroelectric element 1 1'formed by electrically connecting a first pyroelectric element element 1a and a fourth pyroelectric element element 1d in series, and a third pyroelectric element 1 1 ' The second pyroelectric element 1 formed by electrically connecting the pyroelectric element element 1c and the second pyroelectric element element 1b in series.
It consists of 2 '.
【００１７】なお、この場合も第１の焦電素子１1 ′の
第１の焦電素子エレメント１ａおよび第２の焦電素子１
2 ′の第３の焦電素子エレメント１ｃは、それぞれ正極
に設定され、第１の焦電素子１1 ′の第２の焦電素子エ
レメント１ｂおよび第２の焦電素子１2 ′の第４の焦電
素子エレメント１ｄは、それぞれ負極に設定されてい
る。Also in this case, the first pyroelectric element 1a and the second pyroelectric element 1 of the first pyroelectric element 1 1 ′ are also used.
2 'third pyroelectric element 1c of the is set to each of the positive electrode, the first pyroelectric element 1 1' fourth of the second pyroelectric element element 1b and the second pyroelectric element 1 2 ' Each of the pyroelectric element elements 1d is set to a negative electrode.
【００１８】このように構成された信号処理装置は、焦
電素子１′に図示しない例えば多面体ミラーやフレネル
レンズなどの光学系を組み合わせて前述した図８に示す
ように例えば天井Ｕなどに取り付けてこの信号処理装置
Ｓ下を移動する人間Ｍを検出すると、図２〜図６に示す
ような情報が得られた。In the signal processing device thus constructed, the pyroelectric element 1'is combined with an optical system (not shown) such as a polyhedral mirror or a Fresnel lens, and is attached to the ceiling U or the like as shown in FIG. When the person M moving under the signal processing device S is detected, the information as shown in FIGS. 2 to 6 is obtained.
【００１９】すなわち図２（ａ）に示すように焦電素子
１′の上半分（第１の焦電素子エレメント１ａ，第３の
焦電素子エレメント１ｃの配列方向）を人間が矢印方向
に横切ると、加算増幅器４′からは図２（ｂ）に示す出
力信号が得られ、差動増幅器３′からは図２（ｃ）に示
す出力信号が得られる。That is, as shown in FIG. 2A, a person crosses the upper half of the pyroelectric element 1 '(the arrangement direction of the first pyroelectric element element 1a and the third pyroelectric element element 1c) in the arrow direction. Then, the output signal shown in FIG. 2 (b) is obtained from the summing amplifier 4 ', and the output signal shown in FIG. 2 (c) is obtained from the differential amplifier 3'.
【００２０】また、図３（ａ）に示すように焦電素子
１′の左半分（第１の焦電素子エレメント１ａ，第２の
焦電素子エレメント１ｂの配列方向）を人間が矢印方向
に横切ると、加算増幅器４′からは図３（ｂ）に示す出
力信号が得られ、差動増幅器３′からは図３（ｃ）に示
す出力信号が得られる。Further, as shown in FIG. 3 (a), a person moves the left half of the pyroelectric element 1 '(the arrangement direction of the first pyroelectric element element 1a and the second pyroelectric element element 1b) in the arrow direction. When crossing, the output signal shown in FIG. 3 (b) is obtained from the summing amplifier 4 ', and the output signal shown in FIG. 3 (c) is obtained from the differential amplifier 3'.
【００２１】また、図４（ａ）に示すように焦電素子
１′の斜め方向（第２の焦電素子エレメント１ｂ，第３
の焦電素子エレメント１ｃの配列方向）を人間が矢印方
向に横切ると、加算増幅器４′からは図４（ｂ）に示す
出力信号が得られ、差動増幅器３′からは図４（ｃ）に
示す出力信号が得られる。Further, as shown in FIG. 4 (a), the pyroelectric element 1'is slanted (second pyroelectric element element 1b, third pyroelectric element 1b).
When the person crosses the direction (arrangement direction of the pyroelectric element 1c) in the arrow direction, the output signal shown in FIG. 4 (b) is obtained from the summing amplifier 4 ', and the output signal from the differential amplifier 3'is shown in FIG. 4 (c). The output signal shown in is obtained.
【００２２】また、図５（ａ）に示すように焦電素子
１′の２方向の焦電素子エレメントに跨って（第１の焦
電素子エレメント１ａ，第３の焦電素子エレメント１ｃ
の配列方向および第２の焦電素子エレメント１ｂ，第４
の焦電素子エレメント１ｄの配列方向）を人間が矢印方
向に横切ると、加算増幅器４′からは図５（ｂ）に示す
出力信号が得られ、差動増幅器３′からは図５（ｃ）に
示す出力信号が得られる。Further, as shown in FIG. 5 (a), the pyroelectric element 1'is extended over the pyroelectric element elements in two directions (first pyroelectric element element 1a and third pyroelectric element element 1c).
Array direction and the second pyroelectric element 1b, the fourth
When the person traverses the direction (arrangement direction of the pyroelectric element 1d) in the direction of the arrow, the output signal shown in FIG. 5 (b) is obtained from the summing amplifier 4 ', and the output signal shown in FIG. 5 (c) is obtained from the differential amplifier 3'. The output signal shown in is obtained.
【００２３】また、図６（ａ）に示すように焦電素子
１′の２方向の焦電素子エレメントに跨って（第１の焦
電素子エレメント１ａ，第２の焦電素子エレメント１ｂ
の配列方向および第３の焦電素子エレメント１ｃ，第４
の焦電素子エレメント１ｄの配列方向）を人間が矢印方
向に横切ると、加算増幅器４′からは図６（ｂ）に示す
出力信号が得られ、差動増幅器３′からは図６（ｃ）に
示す出力信号が得られる。As shown in FIG. 6 (a), the pyroelectric element 1'is extended over the pyroelectric element elements in two directions (first pyroelectric element element 1a and second pyroelectric element element 1b).
Array direction and third pyroelectric element 1c, fourth
When the person traverses (the direction of arranging the pyroelectric element 1d) in the direction of the arrow, the output signal shown in FIG. 6 (b) is obtained from the summing amplifier 4 ', and the output signal shown in FIG. 6 (c) is obtained from the differential amplifier 3'. The output signal shown in is obtained.
【００２４】これらの出力信号は、判別回路５内でバン
ドパスフィルタにより検知すべき移動する人の信号周波
数を通過させ、ウインドコンパレータによりこの信号周
波数の変化が閾値を越えたときに出力端子５ａに信号出
力が得られ、人間の移動に関する情報が得られることに
なる。These output signals pass the signal frequency of a moving person to be detected by the bandpass filter in the discrimination circuit 5, and the window comparator outputs it to the output terminal 5a when the change of the signal frequency exceeds the threshold value. The signal output will be obtained and information about the movement of the person will be obtained.
【００２５】このような構成によると、焦電素子１′
は、第２の焦電素子エレメント１ｂと第４の焦電素子エ
レメント１ｄとをたすきがけ接続されて構成されるの
で、人間が焦電素子１′の２方向の焦電素子エレメント
に跨って移動しても加算増幅器４′または差動増幅器
３′の何れか一方に出力信号が得られるので、人の移動
を確実に検出することができる。According to this structure, the pyroelectric element 1 '
Is configured by connecting the second pyroelectric element 1b and the fourth pyroelectric element 1d by striking each other, so that a person moves across the pyroelectric element 1'in two directions. However, since the output signal is obtained from either the summing amplifier 4'or the differential amplifier 3 ', the movement of the person can be reliably detected.
【００２６】また、図２〜図６で説明したように焦電素
子１′の検出領域内で１つの領域に限定して見た場合、
縦方向，横方向の人間の移動によりそれぞれ和信号，差
信号により大きな出力信号が得られるので、人間の移動
方向の判別が可能となる。Further, as described with reference to FIGS. 2 to 6, in the case where the detection area of the pyroelectric element 1'is limited to one area,
Larger output signals can be obtained by the sum signal and the difference signal due to the movement of the person in the vertical direction and the horizontal direction, respectively, so that the direction of movement of the person can be determined.
【００２７】なお、前述した実施例においては、光電変
換素子として焦電素子を用いた場合について説明した
が、本発明はこれに限定されるものではなく、例えばサ
ーモパイル，シリコンフォトダイオードなどを用いても
前述と同様な効果が得られることは言うまでもない。In the above-described embodiments, the case where the pyroelectric element is used as the photoelectric conversion element has been described, but the present invention is not limited to this, and for example, a thermopile, a silicon photodiode or the like may be used. Needless to say, the same effect as described above can be obtained.
【００２８】[0028]
【発明の効果】以上、説明したように本発明によれば、
光電変換素子の検知領域内における全ての方向からの対
象物体の移動を確実に検出することができるとともに一
つの領域（縦方向または横方向）に限定して見た場合、
対象物体の移動方向が検出できるなどの極めて優れた効
果が得られる。As described above, according to the present invention,
When it is possible to reliably detect the movement of the target object from all directions within the detection area of the photoelectric conversion element, and when viewed only in one area (vertical direction or horizontal direction),
An extremely excellent effect such as detection of the moving direction of the target object can be obtained.
【図１】本発明による信号処理装置の一実施例による構
成を説明する図である。FIG. 1 is a diagram illustrating a configuration according to an embodiment of a signal processing device according to the present invention.
【図２】本発明に係わる信号処理装置のイメージセンサ
を横切る人間の移動に対応して加算増幅器，減算増幅器
が出力する出力信号を示す図である。FIG. 2 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a signal processing device according to the present invention.
【図３】本発明に係わる信号処理装置のイメージセンサ
を横切る人間の移動に対応して加算増幅器，減算増幅器
が出力する出力信号を示す図である。FIG. 3 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a signal processing device according to the present invention.
【図４】本発明に係わる信号処理装置のイメージセンサ
を横切る人間の移動に対応して加算増幅器，減算増幅器
が出力する出力信号を示す図である。FIG. 4 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a signal processing device according to the present invention.
【図５】本発明に係わる信号処理装置のイメージセンサ
を横切る人間の移動に対応して加算増幅器，減算増幅器
が出力する出力信号を示す図である。FIG. 5 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a signal processing device according to the present invention.
【図６】本発明に係わる信号処理装置のイメージセンサ
を横切る人間の移動に対応して加算増幅器，減算増幅器
が出力する出力信号を示す図である。FIG. 6 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a signal processing device according to the present invention.
【図７】従来の信号処理装置の構成を説明する図であ
る。FIG. 7 is a diagram illustrating a configuration of a conventional signal processing device.
【図８】信号処理装置の設置構造を説明する断面図であ
る。FIG. 8 is a cross-sectional view illustrating an installation structure of a signal processing device.
【図９】従来の信号処理装置のイメージセンサを横切る
人間の移動に対応して加算増幅器，減算増幅器が出力す
る出力信号を示す図である。FIG. 9 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a conventional signal processing device.
【図１０】従来の信号処理装置のイメージセンサを横切
る人間の移動に対応して加算増幅器，減算増幅器が出力
する出力信号を示す図である。FIG. 10 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a conventional signal processing device.
【図１１】従来の信号処理装置のイメージセンサを横切
る人間の移動に対応して加算増幅器，減算増幅器が出力
する出力信号を示す図である。FIG. 11 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a conventional signal processing device.
【図１２】従来の信号処理装置のイメージセンサを横切
る人間の移動に対応して加算増幅器，減算増幅器が出力
する出力信号を示す図である。FIG. 12 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a conventional signal processing device.
【図１３】従来の信号処理装置のイメージセンサを横切
る人間の移動に対応して加算増幅器，減算増幅器が出力
する出力信号を示す図である。FIG. 13 is a diagram showing output signals output from an addition amplifier and a subtraction amplifier in response to movement of a person across an image sensor of a conventional signal processing device.
１′ 焦電素子 １ａ 第１の焦電素子エレメント １ｂ 第２の焦電素子エレメント １ｃ 第３の焦電素子エレメント １ｄ 第４の焦電素子エレメント １1′ 第１の焦電素子 １2′ 第２の焦電素子 １Ａ 出力端子 １Ｂ グランド端子 １Ｃ 出力端子 １Ｄ グランド端子 ２ 前置増幅器 ３′ 差動増幅器 ４′ 加算増幅器 ５ 判別回路 ５ａ 出力端子1 'pyroelectric element 1a first pyroelectric element element 1b second pyroelectric element element 1c third pyroelectric element 1d fourth pyroelectric elements 1 1' first pyroelectric element 1 2 'a Pyroelectric element 2 1A output terminal 1B ground terminal 1C output terminal 1D ground terminal 2 preamplifier 3'differential amplifier 4'summing amplifier 5 discrimination circuit 5a output terminal
Claims (2)
なる２つの光電変換素子が配置されかつ斜め方向に配置
された異なる極性の２つの光電変換素子がそれぞれ電気
的に直列接続されて第１の光電変換素子および第２の光
電変換素子を構成し対象物体の移動を光学的に検出する
光電変換装置と、 前記光電変換装置に対象物体の移動を集光させる光学系
と、 前記第１の光電変換素子および第２の光電変換素子の出
力信号を差信号と和信号とに変換する信号変換回路と、 前記信号変換回路の出力信号に基づいて対象物体の移動
の有無，移動方向を判別する判別回路と、を備えたこと
を特徴とする信号処理装置。1. Two photoelectric conversion elements having different polarities in the vertical direction and the horizontal direction are arranged in the vertical direction, and two photoelectric conversion elements having different polarities arranged in an oblique direction are electrically connected in series to each other. A photoelectric conversion device configured to compose the first photoelectric conversion element and the second photoelectric conversion element to optically detect the movement of the target object; an optical system that condenses the movement of the target object in the photoelectric conversion device; Signal conversion circuit for converting the output signals of the photoelectric conversion element and the second photoelectric conversion element into a difference signal and a sum signal, and the presence / absence of movement of the target object and the movement direction are determined based on the output signal of the signal conversion circuit. And a discriminating circuit for performing the signal processing.
して焦電素子を用いたことを特徴とする信号処理装置。2. The signal processing device according to claim 1, wherein a pyroelectric element is used as the photoelectric conversion element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3300092A JPH05203762A (en) | 1992-01-24 | 1992-01-24 | Signal processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3300092A JPH05203762A (en) | 1992-01-24 | 1992-01-24 | Signal processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05203762A true JPH05203762A (en) | 1993-08-10 |
Family
ID=12374583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3300092A Pending JPH05203762A (en) | 1992-01-24 | 1992-01-24 | Signal processor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05203762A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012242140A (en) * | 2011-05-16 | 2012-12-10 | Konica Minolta Business Technologies Inc | Human body detecting device and image processing apparatus with the same |
| JP2014046650A (en) * | 2012-09-03 | 2014-03-17 | Konica Minolta Inc | Image forming apparatus, electric power control method, and electric power control program |
| CN103676532A (en) * | 2012-09-03 | 2014-03-26 | 柯尼卡美能达株式会社 | Image forming apparatus and power control method |
| JP2014059186A (en) * | 2012-09-14 | 2014-04-03 | Konica Minolta Inc | Image forming apparatus, power control method, and power control program |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5994094A (en) * | 1982-11-20 | 1984-05-30 | Takenaka Eng Kogyo Kk | Twin sensor system for omnidirectional burglary |
| JPS61258185A (en) * | 1985-05-11 | 1986-11-15 | Tokyo Optical Co Ltd | End face detecting device |
| JPS6484179A (en) * | 1987-09-26 | 1989-03-29 | Matsushita Electric Works Ltd | Human body detecting device |
-
1992
- 1992-01-24 JP JP3300092A patent/JPH05203762A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5994094A (en) * | 1982-11-20 | 1984-05-30 | Takenaka Eng Kogyo Kk | Twin sensor system for omnidirectional burglary |
| JPS61258185A (en) * | 1985-05-11 | 1986-11-15 | Tokyo Optical Co Ltd | End face detecting device |
| JPS6484179A (en) * | 1987-09-26 | 1989-03-29 | Matsushita Electric Works Ltd | Human body detecting device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012242140A (en) * | 2011-05-16 | 2012-12-10 | Konica Minolta Business Technologies Inc | Human body detecting device and image processing apparatus with the same |
| US8835850B2 (en) | 2011-05-16 | 2014-09-16 | Konica Minolta Business Technologies, Inc. | Human body sensing device and image processing apparatus having the same |
| JP2014046650A (en) * | 2012-09-03 | 2014-03-17 | Konica Minolta Inc | Image forming apparatus, electric power control method, and electric power control program |
| CN103676532A (en) * | 2012-09-03 | 2014-03-26 | 柯尼卡美能达株式会社 | Image forming apparatus and power control method |
| US9116484B2 (en) | 2012-09-03 | 2015-08-25 | Konica Minolta, Inc. | Image forming apparatus, power control method, and recording medium |
| CN105911829A (en) * | 2012-09-03 | 2016-08-31 | 柯尼卡美能达株式会社 | Image forming apparatus, power control method, and recording medium |
| JP2014059186A (en) * | 2012-09-14 | 2014-04-03 | Konica Minolta Inc | Image forming apparatus, power control method, and power control program |
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