JPH0382903A - Angle detector - Google Patents
Angle detectorInfo
- Publication number
- JPH0382903A JPH0382903A JP21884089A JP21884089A JPH0382903A JP H0382903 A JPH0382903 A JP H0382903A JP 21884089 A JP21884089 A JP 21884089A JP 21884089 A JP21884089 A JP 21884089A JP H0382903 A JPH0382903 A JP H0382903A
- Authority
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- Japan
- Prior art keywords
- angle
- reference position
- detecting part
- signal processing
- detected
- 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 abstract description 88
- 238000005259 measurement Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的コ
（産業上の利用分野）
この発明は、例えば人工衛星等の宇宙飛翔体に搭載され
たアンテナ反射鏡等の被駆動体を駆動制御する駆動体の
駆動角度を検出するに用いる角度検出装置に関する。[Detailed Description of the Invention] [Purpose of the Invention (Field of Industrial Application) The present invention relates to a driving body for driving and controlling a driven body such as an antenna reflector mounted on a spacecraft such as an artificial satellite. The present invention relates to an angle detection device used to detect a drive angle.
（従来の技術）
一般に、この種の角度検出装置おいては、ポテンショメ
ータと称する角度検出部を駆動用モー夕の駆動軸等の駆
動体に装着し、この角度検出部で駆動体の駆動にともな
う入力電圧Ｖｉに対する出力電圧Ｖｏの分圧比を求めて
、この分圧比を角度比として駆動体の駆動角度が検出さ
れる。この場合、角度検出部は駆動体の駆動に連動して
可変する出力電圧ＶＯを測定し、その入力電圧Ｖ＋を一
定として分圧比を求めて、駆動角度を検出する。(Prior art) In general, in this type of angle detection device, an angle detection section called a potentiometer is attached to a driving body such as a drive shaft of a drive motor, and this angle detection section is used to detect angle detection parts as the driving body is driven. The voltage division ratio of the output voltage Vo to the input voltage Vi is determined, and the driving angle of the driving body is detected using this voltage division ratio as an angle ratio. In this case, the angle detection section measures the output voltage VO that varies in conjunction with the driving of the driving body, determines the voltage division ratio while keeping the input voltage V+ constant, and detects the driving angle.
坊４図は上記角度検出検出部を取出して示すもので、図
中１０は抵抗素子で、その両端に入力電圧Ｖｉが印加さ
れる。この抵抗素子１０上には図示しない駆動体に連結
れる摺動子１１が回転自在に設けられ、上記駆動体（図
示せず）が回転駆動されると、その摺動子１１が回転し
て、抵抗素子１０の一端と摺動子１１間の出力電圧Ｖｏ
が可変される。そこで、角度検出部は、その入力電圧Ｖ
ｉに対する出力電圧ＶＯの分圧比を求めて、この分圧比
を角度比として角度が検出される。Figure 4 shows the angle detection section taken out, and numeral 10 in the figure is a resistive element, to both ends of which an input voltage Vi is applied. A slider 11 connected to a driver (not shown) is rotatably provided on the resistance element 10, and when the driver (not shown) is rotationally driven, the slider 11 rotates. Output voltage Vo between one end of the resistance element 10 and the slider 11
is made variable. Therefore, the angle detection section has an input voltage V
The voltage division ratio of the output voltage VO to i is determined, and the angle is detected using this voltage division ratio as an angle ratio.
ところが、上記角度検出装置では、宇宙空間において使
用する場合、その電力供給源となる太陽電池パドルが入
射する太陽光の増減等により、発生電力が異なることに
より、角度検出部への入力電圧Ｖｉが異なるおそれがあ
るために、入力電圧■１を一定として、出力電圧ＶＯの
みを測定して分圧比を求めていたのでは、正確にして、
信頼性の高い角度検出が困難となるという問題を有する
。However, when the above-mentioned angle detection device is used in outer space, the input voltage Vi to the angle detection section changes due to the difference in generated power due to changes in sunlight incident on the solar array paddle that serves as the power supply source. Because there is a possibility that the input voltage 1 is constant and only the output voltage VO is measured to determine the voltage division ratio,
This poses a problem in that highly reliable angle detection is difficult.
また、温度環境の激しい宇宙空間にあっては、角度検出
部が、予め地上で求めておいた分圧比と角度比との関係
を示す規定特性が、その誤差範囲内で異なった特性に変
化するおそれを有しており、この点からも高精度で、信
頼性の高い角度検出が困難となるという問題を有する。In addition, in outer space, where the temperature environment is intense, the specified characteristic that indicates the relationship between the partial pressure ratio and the angle ratio, determined in advance by the angle detection unit on the ground, changes to a different characteristic within the error range. This also poses a problem in that highly accurate and reliable angle detection is difficult.
（発明が解決しようとする課題）
以上述べたように、従来の角度検出装置では、角度検出
の信頼性が低いという問題を有していた。(Problems to be Solved by the Invention) As described above, the conventional angle detection device has a problem in that the reliability of angle detection is low.
この発明は上記の事情に鑑みてなされたもので、簡易な
構成で、かつ、信頼性の高い高精度な角度検出を実現し
得るようにした角度検出装置を提供することを目的とす
る。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an angle detection device that has a simple configuration and is capable of realizing highly reliable and highly accurate angle detection.
［発明の構成コ
（課題を解決するための手段）
この発明は駆動体に装着され、入力電圧と出力電圧を測
定して、その分圧比を求めて前記駆動体の角度を検出す
る角度検出部と、この角度検出部の基準位置を検出する
基準位置検出手段と、前記角度検出部で検出した駆動体
の角度と前記基準位置検出手段で検出した延準位置より
前記角度検出部の測定誤差を求めて角度補償信号を生成
する誤差検出手段と、この誤差検出手段で生成した角度
補償信号に対応して前記角度検出部で検出した角度を補
正する信号処理手段とを備えて角度検出装置を構成した
ものである。[Structure of the Invention (Means for Solving the Problems) The present invention provides an angle detection section that is attached to a drive body, measures an input voltage and an output voltage, calculates a voltage division ratio thereof, and detects the angle of the drive body. and a reference position detection means for detecting the reference position of the angle detection section, and a measurement error of the angle detection section is determined from the angle of the driving body detected by the angle detection section and the horizontal position detected by the reference position detection means. An angle detecting device includes: an error detecting means for calculating and generating an angle compensation signal; and a signal processing means for correcting the angle detected by the angle detecting section in accordance with the angle compensation signal generated by the error detecting means. This is what I did.
また、前記角度検出部の基準位置を検出する基準位置検
出手段に代えて、前記駆動体に駆動される被駆動体の基
準位置を検出する基準位置検出手段を備え、この基準位
置と角度検出部で検出した駆動体の角度より角度検出部
の測定誤差を求めて、角度補償信号を生成するように構
成したものである。Further, in place of the reference position detection means for detecting the reference position of the angle detection section, reference position detection means for detecting the reference position of the driven body driven by the driving body is provided, and the reference position and the angle detection section The measurement error of the angle detection section is determined from the angle of the driving body detected by the angle detection section, and an angle compensation signal is generated.
（作用）
上記構成によれば、角度検出部で入力電圧と出力電圧を
ａｌｌ定して分圧比を求めて角度を検出すると共に、こ
の角度と基準位置検出手段で検出した基準位置より角度
検出部の測定誤差を求め、この１ｆｌＩｊ定誤差に対応
して角度検出部で検出した角度が補正される。従って、
検出した角度は使用環境の変化にともなう入力電圧の変
化及び角度検出部の特性の変化に左右されることなく、
常に正確な角度検出が実現される。(Function) According to the above configuration, the angle detection section determines the input voltage and the output voltage to determine the voltage division ratio to detect the angle, and the angle detection section uses this angle and the reference position detected by the reference position detection means. The angle detected by the angle detection unit is corrected in accordance with this 1flIj constant error. Therefore,
The detected angle is not affected by changes in the input voltage due to changes in the usage environment or changes in the characteristics of the angle detection unit.
Accurate angle detection is always achieved.
（実施例）
以下、この発明の実施例について、図面を参照して詳細
に説明する。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図はこの発明の一実施例に係る角度検出装置を示す
もので、図中２０はポテンショメータと称する角度検出
部で、例えば人工衛星に搭載される図示しないアンテナ
反射鏡等の被駆動体を駆動制御する駆動用モータ等の駆
動体に装着される。FIG. 1 shows an angle detection device according to an embodiment of the present invention. In the figure, 20 is an angle detection section called a potentiometer, which detects a driven object such as an antenna reflector (not shown) mounted on an artificial satellite. It is attached to a drive body such as a drive motor for drive control.
この角度検出部２０は、入力電圧Ｖｊに対する出力電圧
Ｖｏの分圧比を角度比として上記駆動体（図示せず）の
回転角度を検出するもので、その入力電圧Ｖ１及び出力
電圧Ｖｏの双方を測定して分圧比を求めて角度を検出す
る。この角度検出部２０の出力端は信号処理部２１の一
方の入力端に接続され、この信号処理部２１の出力端は
例えば、地上局に設けられた誤差検出部２２の一方の入
力端が接続される。この誤差検出部２２は、その他方の
入力端に上記角度検出部２０の零点等の基準位置を検出
する例えば、セグメントスイッチ等で形成される基準位
置検出部２３からの基準位置検出信号が人力されており
、この基準位置検出部２３からの基準位置と上記信号処
理部２１からの角度より角度検出部２０の測定誤差を求
めて、角度補償信号を生成し、この角度補償信号をコマ
ンドとして上記信号処理部２１に出力する。The angle detection section 20 detects the rotation angle of the driving body (not shown) using the division ratio of the output voltage Vo to the input voltage Vj as the angle ratio, and measures both the input voltage V1 and the output voltage Vo. The angle is detected by calculating the partial pressure ratio. The output end of this angle detection section 20 is connected to one input end of a signal processing section 21, and the output end of this signal processing section 21 is connected to one input end of an error detection section 22 provided at the ground station, for example. be done. This error detection section 22 receives a reference position detection signal from a reference position detection section 23 formed by a segment switch or the like, which detects a reference position such as the zero point of the angle detection section 20, at the other input terminal. The measurement error of the angle detection section 20 is determined from the reference position from the reference position detection section 23 and the angle from the signal processing section 21 to generate an angle compensation signal, and the angle compensation signal is used as a command to output the above signal. It is output to the processing section 21.
上記構成において、上記駆動体（図示せず）が駆動され
ると、角度検出部２０は前記第４図で述べたように、そ
の摺動子１１が抵抗素子１０上を回動され、これにとも
なって出力電圧Ｖｏが可変される。ここで、角度検出部
２０は入力電圧Ｖ＋及び出力電圧ｖｏを測定して、該入
力電圧Ｖｉに対する出力電圧Ｖｏの分圧比を求めて、こ
の分圧比を角度比として角度を検出し、信号処理部２１
に出力する。信号処理部２１は入力した角度をテレメト
リで誤差検出部２２に出力する。同時に、上記角度検出
部２０は、その基準位置が基準位置検出部２３で検出さ
れる。この基準位置検出部２３は、角度検出部２０の基
準位置をテレメトリにより上記誤差検出部２２に出力す
る。すると、この誤差検出部２２は、人力した角度と基
準位置より測定誤差を求めて、予め設定しである規定特
性の特性変化を補正する角度補償信号を生成し、この角
度補償信号をコマンドとして上記信号処理部２１に出力
する。ここで、信号処理部２１は入力した角度補償信号
に対応して規定特性を補正して角度を求める。In the above configuration, when the drive body (not shown) is driven, the angle detection unit 20 rotates its slider 11 on the resistance element 10 as described in FIG. At the same time, the output voltage Vo is varied. Here, the angle detection unit 20 measures the input voltage V+ and the output voltage vo, determines the voltage division ratio of the output voltage Vo to the input voltage Vi, uses this voltage division ratio as an angle ratio to detect the angle, and the signal processing unit 21
Output to. The signal processing section 21 outputs the input angle to the error detection section 22 by telemetry. At the same time, the reference position of the angle detection section 20 is detected by the reference position detection section 23 . This reference position detection section 23 outputs the reference position of the angle detection section 20 to the error detection section 22 by telemetry. Then, the error detection unit 22 calculates the measurement error from the manually input angle and the reference position, generates an angle compensation signal for correcting the change in the specified characteristic that has been set in advance, and uses this angle compensation signal as a command to perform the above-mentioned operation. The signal is output to the signal processing section 21. Here, the signal processing unit 21 corrects the prescribed characteristics in accordance with the input angle compensation signal to obtain the angle.
即ち、上記誤差検出部２２は角度検出部２０で検出した
角度と基準位置検出部２３で検出した角度検出部２０の
１箇所の基準位置より、第２図に示す如き規定特性Ａの
オフセット（平行移動）を検出すると、これら角度及び
基準位置から基準位置補正量Ｂｅを求めて、角度補償信
号として信号処理部２１に補正コマンドとして出力する
。ここで、信号処理部２１は、基準位置誤差をＢｅ（ｒ
ａｄ）とすると、
Ｂｅ＋Ｂｅ
の補正を行なってオフセットを図中破線に示すように補
正して角度を求める。また、誤差検出部２２は角度検出
部２０で検出した角度と基準位置検出部２３で検出した
角度検出部２０の２箇所の基準位置より、第３図に示す
如く規定特性Ａのスケールファクタを検出すると、これ
ら角度及び基準位置からスケールファクタ補正量Ｋｃを
求めて、角度補償信号として信号処理部２１に補正コマ
ンドとし出力する。ここで、信号処理部２１は、スケー
ルファクタの補正前をＫｏとすると、Ｋｏ＋Ｋｃ
の補正を行なってスケールファクタを図中破線で示すよ
うに補正して角度を求める。That is, the error detection section 22 detects an offset (parallel) of the prescribed characteristic A as shown in FIG. When the movement) is detected, a reference position correction amount Be is determined from these angles and the reference position, and is output as an angle compensation signal to the signal processing unit 21 as a correction command. Here, the signal processing unit 21 converts the reference position error into Be(r
ad), Be+Be is corrected, the offset is corrected as shown by the broken line in the figure, and the angle is determined. Furthermore, the error detection section 22 detects the scale factor of the prescribed characteristic A as shown in FIG. 3 from the angle detected by the angle detection section 20 and the two reference positions of the angle detection section 20 detected by the reference position detection section 23. Then, the scale factor correction amount Kc is determined from these angles and the reference position, and output as an angle compensation signal to the signal processing section 21 as a correction command. Here, the signal processing unit 21 calculates the angle by correcting the scale factor as shown by the broken line in the figure by correcting Ko+Kc, assuming that the scale factor before correction is Ko.
このように、上記角度検出装置は角度検出部２０で入力
電圧ｖ１と出力電圧Ｖｏを測定して分圧比を求めて角度
を検出すると共に、この角度と基準位置検出部２３で検
出した基準位置より角度検出部２０の測定誤差を求め、
この測定誤差に対応して角度検出部２０で検出した角度
を補正するように構成したことにより、使用環境の変化
にともなう入力電圧の変化及び角度検出部の特性の変化
に左右されることなく、常に正確な角度検出が実現され
る。In this way, the angle detecting device measures the input voltage v1 and the output voltage Vo with the angle detecting section 20, determines the voltage division ratio, and detects the angle. Determine the measurement error of the angle detection unit 20,
By configuring the angle detected by the angle detection unit 20 to be corrected in response to this measurement error, the system can be used without being affected by changes in the input voltage and changes in the characteristics of the angle detection unit due to changes in the usage environment. Accurate angle detection is always achieved.
なお、上記実施例では、基準位置検出部２３で上記駆動
体（図示せず）に装着された角度検出部の基準位置を検
出するように構成したが、これに限ることなく、例えば
上記駆動体（図示せず）に駆動制御されるアンテナ反射
鏡等の被駆動体の基準位置を検出して、この基準位置と
角度検出部２０で検出した角度より測定誤差を求めるよ
うに構成することも可能である。In the above embodiment, the reference position detecting section 23 is configured to detect the reference position of the angle detecting section attached to the driving body (not shown), but the present invention is not limited to this. It is also possible to detect a reference position of a driven object such as an antenna reflector that is drive-controlled (not shown), and calculate the measurement error from this reference position and the angle detected by the angle detection unit 20. It is.
よって、この発明は上記実施例に限ることなく、その他
、この発明の要旨を逸脱しない範囲で種々の変形を実施
し得ることは勿論のことである。Therefore, it goes without saying that the present invention is not limited to the above embodiments, and that various modifications can be made without departing from the spirit of the invention.
［発明の効果］
以上詳述したように、この発明によれば、簡０
易な構成で、かつ、信頼性の高い高精度な角度検出を実
現し得るようにした角度検出装置を提供することができ
る。[Effects of the Invention] As detailed above, according to the present invention, it is possible to provide an angle detection device that has a simple configuration and is capable of realizing highly reliable and highly accurate angle detection. I can do it.
第１図はこの発明の一実施例に係る角度検出装置を示す
ブロック図、第２図及び第３図はそれぞれ第１図の動作
を説明するために示した特性図、第４図は角度検出部の
概略を説明するために示した図である。
１０・・・抵抗素子、１１・・・摺動子、２０・・・角
度検出部、２１・・・信号処理部、２２・・・誤差検出
部、２３・・・基準位置検出部。Fig. 1 is a block diagram showing an angle detection device according to an embodiment of the present invention, Figs. 2 and 3 are characteristic diagrams shown to explain the operation of Fig. 1, and Fig. 4 is an angle detection device. It is a figure shown in order to explain the outline of a part. DESCRIPTION OF SYMBOLS 10... Resistance element, 11... Slider, 20... Angle detection part, 21... Signal processing part, 22... Error detection part, 23... Reference position detection part.
Claims (2)
て、その分圧比を求めて前記駆動体の角度を検出する角
度検出部と、 この角度検出部の基準位置を検出する基準位置検出手段
と、 前記角度検出部で検出した駆動体の角度と前記基準位置
検出手段で検出した基準位置より前記角度検出部の測定
誤差を求めて角度補償信号を生成する誤差検出手段と、 この誤差検出手段で生成した角度補償信号に対応して前
記角度検出部で検出した角度を補正する信号処理手段と
を具備したことを特徴とする角度検出装置。(1) An angle detection section that is attached to the drive body and measures the input voltage and output voltage and determines the voltage division ratio to detect the angle of the drive body, and a reference position that detects the reference position of this angle detection section. a detection means; an error detection means for generating an angle compensation signal by determining a measurement error of the angle detection section from the angle of the driving body detected by the angle detection section and a reference position detected by the reference position detection means; An angle detection device comprising: signal processing means for correcting the angle detected by the angle detection section in response to an angle compensation signal generated by the detection means.
て、その分圧比を求めて前記駆動体の角度を検出する角
度検出部と、 この駆動体に駆動される被駆動体の基準位置を検出する
基準位置検出手段と、 前記角度検出部で検出した駆動体の角度と前記基準位置
検出手段で検出した被駆動体の基準位置より前記角度検
出部の測定誤差を求めて角度補償信号を生成する誤差検
出手段と、 この誤差検出手段で生成した角度補償信号に対応して前
記角度検出部で検出した角度を補正する信号処理手段と
を具備したことを特徴とする角度検出装置。(2) An angle detection unit that is attached to the drive body and measures the input voltage and output voltage and determines the voltage division ratio to detect the angle of the drive body; and a reference for the driven body driven by the drive body. a reference position detection means for detecting a position, and a measurement error of the angle detection unit is determined from the angle of the driving body detected by the angle detection unit and a reference position of the driven body detected by the reference position detection unit, and an angle compensation signal is generated. An angle detecting device comprising: an error detecting means for generating an angle; and a signal processing means for correcting an angle detected by the angle detecting section in accordance with an angle compensation signal generated by the error detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21884089A JPH0382903A (en) | 1989-08-25 | 1989-08-25 | Angle detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21884089A JPH0382903A (en) | 1989-08-25 | 1989-08-25 | Angle detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0382903A true JPH0382903A (en) | 1991-04-08 |
Family
ID=16726162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21884089A Pending JPH0382903A (en) | 1989-08-25 | 1989-08-25 | Angle detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0382903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022501644A (en) * | 2018-09-20 | 2022-01-06 | 維沃移動通信有限公司Vivo Mobile Communication Co., Ltd. | Angle determination circuit, angle determination method, and foldable screen terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57195823A (en) * | 1981-05-29 | 1982-12-01 | Nissan Motor Co Ltd | Depressing angle detector of accelerator pedal |
| JPS6321810B2 (en) * | 1980-12-10 | 1988-05-09 | Mitsubishi Motors Corp |
-
1989
- 1989-08-25 JP JP21884089A patent/JPH0382903A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6321810B2 (en) * | 1980-12-10 | 1988-05-09 | Mitsubishi Motors Corp | |
| JPS57195823A (en) * | 1981-05-29 | 1982-12-01 | Nissan Motor Co Ltd | Depressing angle detector of accelerator pedal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022501644A (en) * | 2018-09-20 | 2022-01-06 | 維沃移動通信有限公司Vivo Mobile Communication Co., Ltd. | Angle determination circuit, angle determination method, and foldable screen terminal |
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