JPH0197811A - Processing device of reference signal directed to satellite - Google Patents

Processing device of reference signal directed to satellite

Info

Publication number
JPH0197811A
JPH0197811A JP62255158A JP25515887A JPH0197811A JP H0197811 A JPH0197811 A JP H0197811A JP 62255158 A JP62255158 A JP 62255158A JP 25515887 A JP25515887 A JP 25515887A JP H0197811 A JPH0197811 A JP H0197811A
Authority
JP
Japan
Prior art keywords
signal
sensor
reference signal
comparison
comparator
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
Application number
JP62255158A
Other languages
Japanese (ja)
Inventor
Yozo Nakamura
中村 陽三
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62255158A priority Critical patent/JPH0197811A/en
Publication of JPH0197811A publication Critical patent/JPH0197811A/en
Pending legal-status Critical Current

Links

Landscapes

  • Navigation (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

PURPOSE:To obtain a stable directional state by a method wherein a directional reference signal is compared with a deflection signal, switching is made over to a sensor of a redundant system when an allowance value is exceeded, and a signal of a comparison signal generator is used as a reference signal until a normal reference signal is obtained, in a steady state. CONSTITUTION:Either one of deflection signals 3a and 3b from sensors 1a and 1b is selected and outputted as a buffer signal 7 to a comparator 5. The comparator 5 compares the value of a comparison signal 9 from a comparison signal generator 6 with that of the signal 7, and after confirming that the value is within an allowance value, outputs the signal as a directional reference signal 8 to a control circuit 2. The generator 6 holds and renews the directional reference signal 8 from the comparator 5 and outputs it as the comparison signal 9. When abnormality of the sensor is determined by the comparing operation, a redundant sensor signal is taken in, and simultaneously the signal held by the generator 8 is used as the directional reference signal 8 in a transitional period at the time of switching of the sensor. By this method, a stable directional control is attained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は衛星の姿勢制御のための指向基準信号を供給
する衛星指向基準信号処理装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a satellite pointing reference signal processing device that supplies pointing reference signals for attitude control of a satellite.

〔従来の技術〕[Conventional technology]

第2図は従来の指向基準信号処理に関する構成を示す図
である。図において、  (1a)、(1b)は地球に
対しての衛星の姿勢偏位を検出し、偏位信号(5a)、
(5b)を出力するセンサ、(2)は偏位信号(3a)
+(3b)のいずれかを選択し、この信号に対して指向
制御を行なう制御回路である。
FIG. 2 is a diagram showing a configuration related to conventional pointing reference signal processing. In the figure, (1a) and (1b) detect the attitude deviation of the satellite with respect to the earth, and the deviation signal (5a),
The sensor outputs (5b), (2) is the deflection signal (3a)
This is a control circuit that selects either one of +(3b) and performs directional control on this signal.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

定常状態においては、センサ(1a)、(1b)のいず
れか一方が選択され、指向動作が実行される。仮にセン
サ(1a)が選択された状態で運用するものとする。こ
の状態でセンf(1a)に故障等の異常が発生した場合
、制御回路(2)は制御系統の故障と判断し、現状の指
向状態から太陽方向を指向し電力を安定に確保する安定
状態に移行する。その後、故障判別を行ない、センサ(
1b)に切換えて、再度。
In the steady state, one of the sensors (1a) and (1b) is selected and a pointing operation is performed. Assume that the system is operated with the sensor (1a) selected. If an abnormality such as a failure occurs in sensor f (1a) in this state, the control circuit (2) determines that there is a failure in the control system, and directs it toward the sun from the current pointing state to a stable state where power is stably secured. to move to. After that, failure determination is performed and the sensor (
Switch to 1b) and try again.

指向動作を実施する。このため、単にセンサ(1a)の
故障にもかかわらず、冗長系のセンサ(1b)による指
向制御を行なわず、他の安定状態に移行するため、指向
状態が中断し、さらに別の状態に移行し再度指向状態に
復帰させるために、衛星の姿勢を制御するための推薬を
多量に消費して、衛星の運用寿命を短縮してしまう。
Perform directed movements. For this reason, even though the sensor (1a) has failed, the redundant system sensor (1b) does not perform pointing control and shifts to another stable state, which interrupts the pointing state and shifts to another state. However, in order to return to the pointing state again, a large amount of propellant for controlling the attitude of the satellite is consumed, shortening the operational life of the satellite.

この発明はかかる問題点を解決するためになされたもの
で、センサの故障時ならびにセンサ切換え時に発生する
指向基準信号の欠落を阻止し、指向状態を維持すること
を目的とし友ものである。
The present invention was made to solve this problem, and its purpose is to prevent the loss of pointing reference signals that occur when a sensor fails or when switching sensors, and to maintain the pointing state.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係る衛星指向基準信号処理装置は。 A satellite pointing reference signal processing device according to the present invention.

゛定常状態において指向基準信号を保持・更新し。``Hold and update the pointing reference signal in steady state.

この信号を基準に逐次入力される偏位信号(3a)と比
較し、比軟結果が許容値を超過した時、冗長系のセンサ
(1b)に切換え、正常な指向基準信号を得るまでは比
較信号発生器(6)の保持する信号を指向基準信号とし
て用いるようにしたものである。
This signal is compared with the deviation signal (3a) that is inputted sequentially as a reference, and when the relative softness result exceeds the allowable value, the redundant system sensor (1b) is switched to, and the comparison is continued until a normal pointing reference signal is obtained. The signal held by the signal generator (6) is used as the directional reference signal.

〔作用〕[Effect]

この発明においては、運用時使用のセンサに異常が発生
した場合、H1歴の指向基準信号と比較し。
In this invention, when an abnormality occurs in the sensor used during operation, it is compared with the pointing reference signal of the H1 history.

故障と判断した場合に冗長センサに切換えて指向基準信
号を得る。またセンサ切換時の遷移期間においては比較
信号発生器(6)の保持している最新値を指向基準信号
として出力するので、安定した指向状態が維持できる。
If a failure is determined, the redundant sensor is used to obtain a pointing reference signal. Furthermore, during the transition period when switching sensors, the latest value held by the comparison signal generator (6) is outputted as the pointing reference signal, so that a stable pointing state can be maintained.

〔実施例〕〔Example〕

第1図はこの発明の一実施例を示す構成図である。図に
おいて、  (1a)、(1b)はセンサ、(2)は制
御回路、  (3a)、(3b)は偏位信号、(4)は
センサ(1a)。
FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, (1a) and (1b) are sensors, (2) is a control circuit, (3a) and (3b) are deviation signals, and (4) is a sensor (1a).

(1b)からの偏位信号(3a)、(3b)を入力保持
しいずれかの信号を選択するセンサ入カパツフア、(5
)はセンサ入力バッファ(4)で選択されたバッファ信
号(7)と比較信号発生器(6)で出力される比較信号
(9)の比較を行なう比較器、(6)は定常状態におけ
る指向基準信号(8)を保持・更新し比較信号(9)と
して出力する比較信号発生器、α1は比較器(5)でセ
ンサの故障が判別された時にセンサからの偏位信号(3
a)。
A sensor input buffer (5) that inputs and holds the deviation signals (3a) and (3b) from (1b) and selects one of the signals.
) is a comparator that compares the buffer signal (7) selected by the sensor input buffer (4) and the comparison signal (9) output from the comparison signal generator (6), and (6) is the pointing reference in a steady state. A comparison signal generator holds and updates the signal (8) and outputs it as a comparison signal (9). α1 generates a deviation signal (3) from the sensor when a sensor failure is determined by the comparator (5).
a).

(3b)の選択を制御するセンサ選択信号・である。α
υは比較器(5)の比較動作を駆動する比較器動作信号
である。aりは前出センサ入力バッファ(4)、比較器
(5)と比較信号発生器(6)とで構成される指向基準
信号処理装置である。
(3b) is a sensor selection signal that controls the selection. α
υ is a comparator operation signal that drives the comparison operation of the comparator (5). Reference character a is a pointing reference signal processing device comprising the aforementioned sensor input buffer (4), a comparator (5) and a comparison signal generator (6).

センサ(1a)、(1b)からの偏位信号(sa)、(
sb)はセンサ入カパツフア(4)にそれぞれ入力され
、いずれか一方が選択されてバッファ信号(7)として
比較器(5)K出力される。比較器(5)は比較信号発
生器(6)からの比較信号(9)とバッファ信号(7)
の値を比較し。
Deviation signals (sa) from sensors (1a) and (1b), (
sb) are respectively input to the sensor input buffer (4), one of which is selected and outputted to the comparator (5) K as a buffer signal (7). The comparator (5) receives the comparison signal (9) from the comparison signal generator (6) and the buffer signal (7).
Compare the values of .

あらかじめ設定された許容値内にあることを確認後、指
向基準信号(8)として制御回路(2)に出力する。
After confirming that it is within a preset tolerance, it is output to the control circuit (2) as a pointing reference signal (8).

この動作は比較器動作信号(IIIKよシ起動される。This operation is activated by the comparator operation signal (IIIK).

比較信号発生器(6)は比較器(5)から出力される指
向基準信号(8)を保持・更新し比較信号(9)として
出力する。
A comparison signal generator (6) holds and updates the pointing reference signal (8) output from the comparator (5) and outputs it as a comparison signal (9).

指向制御の初期段階では、比較器(5)の比較動作を停
止しバッファ信号(7)を指向基準信号(8)として制
御回路(2)に出力し指向制御を実行する。初期指向制
御が確立した後に比較器動作信号aDによシ比較器(5
)の比較動作を起動する。この時点では、指向制御確立
状態での指向基準信号(8)が比較信号発生器(6)K
保持・更新されておシ、正常な比較動作が実行可能とな
る。
At the initial stage of directional control, the comparison operation of the comparator (5) is stopped, and the buffer signal (7) is output as the directional reference signal (8) to the control circuit (2) to execute the directional control. After the initial pointing control is established, the comparator (5) is activated by the comparator operation signal aD.
) starts the comparison operation. At this point, the pointing reference signal (8) in the established pointing control state is transmitted to the comparison signal generator (6) K.
If the information is maintained and updated, normal comparison operations can be performed.

比較動作でセンサ異常が判別された時、比較器(5)か
らのセンサ選択信号01)Kよシ冗長センサ信号の取シ
込みと同時に、センサ切換時の遷移期間において比較信
号発生器(6)の保持している信号を指向基準信号(8
)として用いることによシ、センサ切換による指向制御
の変動を避ける。上記のごとく指向基準信号処理装置a
つは、センサ入力バッファ(4)、比較器(5)と比較
信号発生器(6)から構成される。
When a sensor abnormality is determined by the comparison operation, the sensor selection signal 01) is sent from the comparator (5) and at the same time as the redundant sensor signal is taken in, the comparison signal generator (6) is activated during the transition period during sensor switching. The signal held by the directional reference signal (8
) to avoid fluctuations in pointing control due to sensor switching. As mentioned above, the directional reference signal processing device a
One consists of a sensor input buffer (4), a comparator (5) and a comparison signal generator (6).

上記説明は、この発明を衛星の指向基準信号処理装置に
適用したが、衛星以外での基準信号発生にも利用しうる
In the above description, the present invention has been applied to a pointing reference signal processing device for a satellite, but the present invention can also be used for generating a reference signal in a device other than a satellite.

〔発明の効果〕〔Effect of the invention〕

この発明は以上説明したとおシ、定常状態での指向基準
信号を保持・更新し、センサ異常時におけるセンサ切換
時に基準信号として用いるため安定した指向基準信号の
供給が可能となる。
As described above, the present invention maintains and updates the pointing reference signal in a steady state and uses it as a reference signal when switching sensors in the event of a sensor abnormality, so that a stable pointing reference signal can be supplied.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の一実施徊を示す構成図、第2図は従
来の指向基準信号発生に関する説明図である。 図において、  (1a)、(1b)はセンサ、(2)
は制御回路、  (5a)、(3b)は偏位信号、(4
)はセンサ入力バッファ、(5)は比較器、(6)は比
較信号発生器、(7)はバッファ信号、(8)は指向基
準信号、(9)は比較信号。 a・はセンサ選択信号、αDは比較器動作信号、α2は
指向基準信号処理装置である。 なお9図中、同一符号は同−又は相当部分を示す。
FIG. 1 is a block diagram showing one implementation of the present invention, and FIG. 2 is an explanatory diagram regarding conventional pointing reference signal generation. In the figure, (1a) and (1b) are sensors, (2)
is a control circuit, (5a) and (3b) are deviation signals, (4
) is a sensor input buffer, (5) is a comparator, (6) is a comparison signal generator, (7) is a buffer signal, (8) is a pointing reference signal, and (9) is a comparison signal. a. is a sensor selection signal, αD is a comparator operation signal, and α2 is a pointing reference signal processing device. In addition, in FIG. 9, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] 地球に対しての衛星の姿勢偏位を検出する複数個のセン
サと、上記複数個のセンサからの信号を入力保持するセ
ンサ入力バツフアと、上記センサ入力バツフアで保持さ
れたセンサ信号から指向基準信号を設定・更新する比較
信号発生器と、前記センサ入力バツフアからの信号を比
較信号発生器からの信号と比較し、あらかじめ設定され
た許容範囲外の場合にセンサ信号切換えを実行し、かつ
正常なセンサ信号が入力される間、上記比較信号発生器
の保持する比較信号を指向基準信号として出力する比較
器とを具備したことを特徴とする衛星指向基準信号処理
装置。
A plurality of sensors that detect the attitude deviation of the satellite with respect to the earth, a sensor input buffer that inputs and holds signals from the plurality of sensors, and a pointing reference signal from the sensor signal held by the sensor input buffer. and a comparison signal generator that sets and updates the sensor input buffer, and compares the signal from the sensor input buffer with the signal from the comparison signal generator, and executes sensor signal switching if the signal is outside a preset tolerance range, and if it is normal. A satellite pointing reference signal processing device comprising: a comparator that outputs a comparison signal held by the comparison signal generator as a pointing reference signal while a sensor signal is input.
JP62255158A 1987-10-09 1987-10-09 Processing device of reference signal directed to satellite Pending JPH0197811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62255158A JPH0197811A (en) 1987-10-09 1987-10-09 Processing device of reference signal directed to satellite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62255158A JPH0197811A (en) 1987-10-09 1987-10-09 Processing device of reference signal directed to satellite

Publications (1)

Publication Number Publication Date
JPH0197811A true JPH0197811A (en) 1989-04-17

Family

ID=17274868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62255158A Pending JPH0197811A (en) 1987-10-09 1987-10-09 Processing device of reference signal directed to satellite

Country Status (1)

Country Link
JP (1) JPH0197811A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08282599A (en) * 1995-04-11 1996-10-29 Nec Corp Solar battery paddle driving control device of artificial satellite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08282599A (en) * 1995-04-11 1996-10-29 Nec Corp Solar battery paddle driving control device of artificial satellite

Similar Documents

Publication Publication Date Title
JPH0197811A (en) Processing device of reference signal directed to satellite
JP2693635B2 (en) CNC synchronous operation method
CN108563146B (en) Robot working mode switching control method and device, computer equipment and medium
JPH05253864A (en) Master slave manipulator
JPH0752363B2 (en) Industrial robot controller
JPH0244401A (en) Multiple type electrical process controller
JP2581192B2 (en) Master / slave / manipulator controller
JP7023726B2 (en) Duplex control system
JPH07253802A (en) Duplicate system for controller
JPS63239511A (en) Robot system
JP2939560B2 (en) Standard frequency generator
JP2564397B2 (en) Redundant system data output device
JP2601926B2 (en) Multiplexed excitation controller
JP2712653B2 (en) Manipulator control method
JPH08328628A (en) Controller for plural robots
JPH0650001Y2 (en) Redundant digital controller
JPS6250857B2 (en)
JPS635404A (en) Moving speed controlling device for robot
NGUYEN et al. Design of an adaptive controller for a telerobot manipulator(Semiannual Technical Report)
JPH04241601A (en) Target value correcting device for analog/digital multiplex controller
JPH01227917A (en) Azimuth measuring instrument switching system
KR19990031948A (en) Fast Redundancy Method for Asynchronous Transmission Mode Local Area Network System
JPS61279904A (en) Protecting circuit for adaptive control time
JP2000161010A (en) Turbine control device
JPH04143846A (en) Interface converter circuit