JPH03110385U - - Google Patents
Info
- Publication number
- JPH03110385U JPH03110385U JP1962790U JP1962790U JPH03110385U JP H03110385 U JPH03110385 U JP H03110385U JP 1962790 U JP1962790 U JP 1962790U JP 1962790 U JP1962790 U JP 1962790U JP H03110385 U JPH03110385 U JP H03110385U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- outputs
- data output
- latch
- infrared
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Description
第１図はこの考案の１実施例の構成を示す図、
第２図は従来の赤外線目標検出装置の構成の１例
を示す図である。
図において、２……赤外線センサ、５……最大
値判定回路、７……ラツチ回路Ａ、９……ラツチ
回路Ｂ、１１……しきい値回路Ａ、１３……デー
タ出力回路、１５……変化率測定回路、１７……
しきい値回路Ｂ、１９……ＡＮＤ回路である。な
お、図中同一あるいは相当部分には、同一符号を
付して示してある。
FIG. 1 is a diagram showing the configuration of one embodiment of this invention.
FIG. 2 is a diagram showing an example of the configuration of a conventional infrared target detection device. In the figure, 2...Infrared sensor, 5...Maximum value judgment circuit, 7...Latch circuit A, 9...Latch circuit B, 11...Threshold circuit A, 13...Data output circuit, 15... Rate of change measurement circuit, 17...
Threshold circuit B, 19... is an AND circuit. It should be noted that the same or corresponding parts in the figures are indicated by the same reference numerals.
Claims (1)
赤外線輝度信号レベルの１フレーム内の最大値を
判定する最大値判定回路と、この最大値判定回路
が出力するラツチ信号により上記赤外線センサが
出力する赤外線輝度信号をラツチするラツチ回路
Ａと、上記最大値判定回路が出力するラツチ信号
により上記赤外線センサが出力する走査位置信号
をラツチするラツチ回路Ｂと、上記ラツチ回路Ａ
が出力する１フレーム内の最大輝度レベルがあら
かじめ設定されたしきい値より大きい場合にデー
タ出力指令を出力するしきい値回路Ａと、上記ラ
ツチ回路Ａが出力する１フレーム内の最大輝度レ
ベルの時間変化率を測定する変化率測定回路と、
この変化率測定回路が出力する１フレーム内の最
大輝度レベルの時間変化率があらかじめ設定され
たしきい値より大きい場合にデータ出力指令を出
力するしきい値回路Ｂと、上記しきい値回路Ａ及
び上記しきい値回路Ｂが同時にデータ出力指令を
出力した場合にデータ出力指令を出力するＡＮＤ
回路と、このＡＮＤ回路がデータ出力指令を出力
した場合に上記ラツチ回路Ｂが出力する１フレー
ム内の最大輝度の位置座標を目標位置座標として
出力するデータ出力回路とを備えたことを特徴と
する赤外線目標検出装置。 an infrared sensor that detects infrared rays from input light;
a maximum value determination circuit that determines the maximum value of the infrared luminance signal level within one frame; a latch circuit A that latches the infrared luminance signal output from the infrared sensor using a latch signal output from the maximum value determination circuit; A latch circuit B that latches the scanning position signal output from the infrared sensor using a latch signal output from the value judgment circuit, and the latch circuit A.
a threshold circuit A that outputs a data output command when the maximum brightness level within one frame output by the latch circuit A is larger than a preset threshold; a rate-of-change measurement circuit that measures the rate of change over time;
a threshold circuit B that outputs a data output command when the time rate of change of the maximum luminance level within one frame outputted by this change rate measuring circuit is larger than a preset threshold; and the threshold circuit A. AND, which outputs a data output command when the threshold circuit B outputs the data output command at the same time.
and a data output circuit that outputs, as target position coordinates, the position coordinates of the maximum brightness within one frame output by the latch circuit B when the AND circuit outputs a data output command. Infrared target detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1962790U JPH03110385U (en) | 1990-02-28 | 1990-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1962790U JPH03110385U (en) | 1990-02-28 | 1990-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03110385U true JPH03110385U (en) | 1991-11-12 |
Family
ID=31522735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1962790U Pending JPH03110385U (en) | 1990-02-28 | 1990-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03110385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210052693A (en) * | 2019-10-30 | 2021-05-11 | 주식회사 에이유이 | PIR sensor with algorithm for improved sensitivity |
-
1990
- 1990-02-28 JP JP1962790U patent/JPH03110385U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210052693A (en) * | 2019-10-30 | 2021-05-11 | 주식회사 에이유이 | PIR sensor with algorithm for improved sensitivity |
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