CN2881674Y - Automatic star finding controller of portable astronomical telescope - Google Patents
Automatic star finding controller of portable astronomical telescope Download PDFInfo
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- CN2881674Y CN2881674Y CNU2006200692022U CN200620069202U CN2881674Y CN 2881674 Y CN2881674 Y CN 2881674Y CN U2006200692022 U CNU2006200692022 U CN U2006200692022U CN 200620069202 U CN200620069202 U CN 200620069202U CN 2881674 Y CN2881674 Y CN 2881674Y
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Abstract
The utility model relates to an automatic satellite-seeking control device of portable astronomical telescopes; the device is composed of an input interface of the power supply, a main controller, and an equatorial drive controller. One end of the input interface of the power supply is connected with the input terminal of the direct-current power supply, while the other terminal is connected with the inner power supply of the control device; the main controller includes a microprocessor (CPU), a static memory (RAM), a flash memory (FLASH), a button, a graphic point matrix LCD display, a buzzer, a backlight lamp of the white LED, a head lamp of the white LED, a RS232 serial interface, and an internal serial bus; the equatorial drive controller includes a single-chip microprocessor, a two-way reversible PWM drive circuit, a DC motor, a photoelectric encoding disc and a detection circuit of the photoelectric encoding disc, and an over-current protection circuit. Calculating the coordinates of the target celestial bodies in the equatorial by the microprocessor in the main controller, the motor movement of the equatorial drive controller can be controlled, realizing the pointing of telescopes and the tracking of target celestial bodies.
Description
Technical field
The utility model relates to a kind of automatic star search control device of portable astronomical telescope.
Background technology
At present domestic portable astronomical telescope automaton adopts great majority to adopt 8 Single-chip Controlling, does not have the automatic star-seeking function that carries star catalogue.Need PC control, just can simply seek star and tracking.There is not astronomical calculation of parameter function.Drive and adopt step motor drive, speed is slow.External portable astronomical telescope automaton then adopts a plurality of 8 16 and processor parallel processing.Its shortcoming is, computational accuracy is low, and computing velocity is relatively slow.
Summary of the invention
The utility model purpose is to provide a kind of automatic star search control device for portable astronomical telescope at above-mentioned weak point, the utility model provides a kind of automatic star-seeking of portable astronomical telescope and the device of tracking, automatic star search control device for portable astronomical telescope is simple in structure, the system stores capacity is big, it volume data is many, and computing velocity is fast.
Automatic star search control device for portable astronomical telescope is to take following mode to realize: the automatic star search control device for portable astronomical telescope structure is by power input interface, master controller, and the equatorial telescope driving governor is formed.
Power input interface one end links to each other with dc supply input, and the other end links to each other with control device internal electric source end, and power input interface is by K switch, diode D1, and resistance R 1, R2, light emitting diode L1, L2 form.Power input interface can prevent that power supply from connecing anti-damage control device.Whether red light emitting diodes L1 pilot lamp indication power supply is correctly plugged.After power supply is plugged, if power supply connects instead.Because the unidirectional conducting effect of red LED, red LED does not work.After power switch was opened, green LED was bright, and pilot lamp indicating device power supply is normal.If power supply is inserted, because the unidirectional on state characteristic of diode D1, the power supply of device is obstructed, can prevent to damage when power supply is anti-inserted other equipment of portable telescope automatic star search control device.
Master controller comprises microprocessor (CPU), static memory (RAM), flash memory (FLASH), button, graphic dot matrix LCD, hummer, white light-emitting diode backlight, white light-emitting diode illuminating lamp composition, RS232 serial line interface, internal serial bus.Processor (CPU) adopts 32 8-digit microcontrollers (LPC2114).Microprocessor (CPU) (61LV25616) links to each other with flash memory (FLASH) (39VF1601 or 39VF3201 or 39VF6401) with static memory (RAM) with address bus by data bus.Microprocessor (CPU) links to each other with button by the I/O mouth.Microprocessor (CPU) links to each other with graphic dot matrix LCD (COG-VP12864) by the I/O mouth.Microprocessor (CPU) links to each other with hummer by the I/O mouth.Microprocessor (CPU) links to each other with the white light-emitting diode backlight by the I/O mouth.Microprocessor (CPU) links to each other with the white light-emitting diode illuminating lamp by the I/O mouth.Microprocessor (CPU) links to each other with global positioning receiver (GPS) module by the I/O mouth.The serial port one that microprocessor (CPU) passes through links to each other with level transferring chip MAX3232, forms the RS232 interface.The serial port two that CPU passes through links to each other with chip for driving (74HC07), forms universal serial bus.The socket that universal serial bus externally connects all adopts 6 core 6P6C sockets.The pinout of all 6 core 6P6C 6 is all identical, can peg graft arbitrarily.
The equatorial telescope driving governor comprises chip microprocessor (8051F330), bidirectional reversible PWM driving circuit, direct current generator, photoelectric code disk and photoelectric code disk testing circuit, current foldback circuit.Little processing links to each other with bidirectional reversible PWM driving circuit by the I/O mouth.The output terminal of bidirectional reversible PWM driving circuit links to each other with direct current generator.Bidirectional reversible PWM driving circuit can adopt bidirectional reversible PWM drive integrated circult L6203.The little processing of monolithic links to each other with the output terminal of photoelectric code disk testing circuit by the I/O mouth.The photoelectric code disk testing circuit can adopt the HLC2701 photoelectric code disk to detect integrated circuit.The little processing of monolithic links to each other by the input port of band AD and the current detecting mouth of bidirectional reversible PWM driving circuit.
The control method of automatic star search control device for portable astronomical telescope is as follows:
Calibrate equatorial telescope to the error between the north pole by master controller, at first telescope is adjusted near the position north pole, search out the fixed star bright star that can be used to calibrate in the data that microprocessor in the master controller (CPU) is stored then from the flash memory (FLASH) of master controller, read the original coordinates of this bright star; Microprocessor (CPU) in the master controller reads global positioning receiver (GPS) module time, geo-location parameter by the I/O mouth simultaneously.Microprocessor in the master controller (CPU) carries out annual parallax calculating, solar parallax calculating, aberration calculating, precession calculating, nutating calculating, atmospheric refraction calculating according to the raw data and the time geographic position of fixed star to celestial body, calculate the target celestial body coordinate in the instrument under the line, and turn near the position this fixed star automatically.Adjust the fixed star be used to calibrate then to the range of telescope center, the microprocessor in the master controller (CPU) is write down the position of the instrument under the line of this fixed star in static memory (RAM), note the time at this moment simultaneously.Microprocessor in the master controller (CPU) calculates the red astronomic coordinates that goes out this fixed star with respect to the observer then.Obtain two transformation relations between the coordinate system by finding the solution two transformation constants between the coordinate system.Microprocessor in the master controller (CPU) after calibration is finished, with the coefficient storage of the conversion between two coordinate systems in the static memory (RAM) of master controller.
After microprocessor in the master controller (CPU) obtained the order of automatic star-seeking from keyboard, the microprocessor in the master controller (CPU) was at first tabled look-up from the flash memory (FLASH) of master controller and is obtained the raw data of target celestial body.Adopt the fixed star computing formula that is stored in the flash memory (FLASH) for fixed star, deep space celestial body, adopt VSOP87 mathematical model and the parameter that is stored in the flash memory (FLASH) for solar system celestial body, use Kepler's equation and the parameter that is stored in the flash memory (FLASH) for asteroid and comet.Microprocessor in the master controller (CPU) carries out annual parallax calculating, solar parallax calculating, aberration calculating, precession calculating, nutating calculating, atmospheric refraction calculating according to the raw data and the time geographic position of fixed star to celestial body, calculate the observation position of target celestial body, by coordinate transform, calculate the target celestial body coordinate in the instrument under the line.
Microprocessor in the master controller (CPU) is calculating target celestial body under the line behind the coordinate in the instrument, universal serial bus by inside, give an order to the equatorial telescope driving governor, after the instruction of the microprocessor (CPU) of the microprocessor of equatorial telescope driving governor in receiving master controller, after the control direct current generator runs to assigned address.Microprocessor in the master controller (CPU) calculates the target celestial body this moment coordinate in the instrument under the line again.Because the target celestial body coordinate in the instrument under the line is constantly time dependent, master controller constantly repeats aforementioned calculation, order, implementation, up to target celestial body under the line the error of the actual coordinate of the coordinate in the instrument and equatorial telescope in specified scope again.After automatic star-seeking finished, the perpetual motion of main controller controls equatorial telescope driving governor was followed the tracks of.
The characteristics of automatic star search control device for portable astronomical telescope:
1, the utility model provides the device of a kind of portable astronomical telescope automatic star-seeking and tracking.
2, the built-in global positioning receiver of this automatic star search control device for portable astronomical telescope (GPS) module can provide astronomical sight exactly and calculate needed time, geographic position.
3, this automatic star search control device for portable astronomical telescope has power supply input excuse, is provided with the power supply input and connects anti-holding circuit, can not connect anti-damage control device because of the both positive and negative polarity of power supply.
4, this automatic star search control device for portable astronomical telescope is simple in structure, and the system stores capacity is big, and it volume data is many, and computing velocity is fast.
5, all interfaces all adopt 6 core 6P6C edge connectoies in this automatic star search control device for portable astronomical telescope, and can peg graft arbitrarily.
6, take equatorial telescope driving governor band overcurrent protection in the formula astronomical telescope automatic star search control device, the universal serial bus by inside can with order of master controller quick exchange and data.
Description of drawings
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is the automatic star search control device for portable astronomical telescope composition frame chart.
Fig. 2 is the power input interface electrical schematic diagram of automatic star search control device for portable astronomical telescope.
Fig. 3 is the master controller composition frame chart of automatic star search control device for portable astronomical telescope.
Fig. 4 is the equatorial telescope driving governor composition frame chart of automatic star search control device for portable astronomical telescope.
Fig. 5 is the automatic star-seeking control method process flow diagram of automatic star search control device for portable astronomical telescope.
Fig. 6 is the celestial body instrument position calculation process flow diagram under the line of automatic star search control device for portable astronomical telescope.
Embodiment
With reference to accompanying drawing 1～6, automatic star search control device for portable astronomical telescope is made up of power input interface, master controller, equatorial telescope driving governor.The composition of automatic star search control device is seen accompanying drawing 1.
The power input interface of portable telescope automatic star search control device is seen accompanying drawing 2.Power input interface one end links to each other with dc supply input, and the other end links to each other with control device internal electric source end, and power input interface is by K switch, diode D1, resistance R 1, R2, and light emitting diode L1, L2 form.K switch is connected direct supply input anode, diode D1, resistance R 1 are connected with the K switch output terminal respectively, the light emitting diode L1 one end other end and the direct supply input negative terminal that links to each other with resistance R 1 links to each other, resistance R 2 one ends link to each other with diode D1, the other end with connect direct supply input negative terminal after light emitting diode L2 connects.Power input interface can prevent that power supply from connecing anti-damage control device.Whether red light emitting diodes L1 pilot lamp indication power supply is correctly plugged.After power supply is plugged, if power supply connects instead.Because the unidirectional conducting effect of red LED, red LED does not work.After power switch was opened, green LED was bright, and pilot lamp indicating device power supply is normal.If power supply is inserted, because the unidirectional on state characteristic of diode D1, the power supply of device is obstructed, can prevent to damage when power supply is anti-inserted other external equipment of portable telescope automatic star-seeking control.
The master controller composition is seen accompanying drawing 3.Master controller comprises microprocessor (CPU), static memory (RAM), flash memory (FLASH), button, graphic dot matrix LCD, hummer, white light-emitting diode backlight, white light-emitting diode illuminating lamp composition, RS232 serial line interface, internal serial bus.CPU adopts 32 8-digit microcontrollers (LPC2114).Microprocessor (CPU) links to each other with flash memory (39VF1601 or 39VF3201 or 39VF6401) with static memory (61LV25616) with address bus by data bus.Microprocessor (CPU) links to each other with button by the I/O mouth.Microprocessor (CPU) links to each other with graphic dot matrix LCD (COG-VP12864) by the I/O mouth.Microprocessor (CPU) links to each other with hummer by the I/O mouth.Microprocessor (CPU) links to each other with the white light-emitting diode backlight by the I/O mouth.CPU links to each other with the white light-emitting diode illuminating lamp by the I/O mouth.Microprocessor (CPU) links to each other with global positioning receiver (GPS) module by the I/O mouth.The serial port one that microprocessor (CPU) passes through links to each other with level transferring chip MAX3232, forms the RS232 interface.The serial port two that CPU passes through links to each other with chip for driving (74HC07), forms universal serial bus.The socket that universal serial bus externally connects all adopts 6 core 6P6C sockets.The pinout of all 6 core 6P6C 6 is all identical, can peg graft arbitrarily.
Equatorial telescope driving governor composition is seen figure four.The equatorial telescope driving governor comprises chip microprocessor (8051F330), bidirectional reversible PWM driving circuit, and direct current generator, photoelectric code disk and photoelectric code disk testing circuit, current foldback circuit is formed.The little processing of monolithic links to each other with bidirectional reversible PWM driving circuit by the I/O mouth.The output terminal of bidirectional reversible PWM driving circuit links to each other with direct current generator.The little processing of monolithic links to each other with the output terminal of photoelectric code disk testing circuit by the I/O mouth.Little processing links to each other by the input port of band AD and the current detecting mouth of bidirectional reversible PWM driving circuit.
The control method of automatic star search control device for portable astronomical telescope is as follows:
Control flow is seen accompanying drawing 5.
Calibrate equatorial telescope to the error between the north pole by master controller.At first telescope is adjusted near the position north pole.Search out the fixed star bright star that can be used to calibrate in the data that microprocessor in the master controller (CPU) is stored then from the flash memory (FLASH) of master controller.Read the original coordinates of this bright star.Microprocessor (CPU) in the master controller reads global positioning receiver (GPS) module time, geo-location parameter by the I/O mouth simultaneously.Microprocessor in the master controller (CPU) carries out annual parallax calculating, the calculating of solar parallax calculating aberration according to the raw data and the time geographic position of fixed star to celestial body, precession calculating, nutating calculating, atmospheric refraction are calculated, and calculate the target celestial body coordinate in the instrument under the line.And turn near this fixed star position automatically.The manual adjustment fixed star that is used to calibrate is to the range of telescope center then, and the microprocessor in the master controller (CPU) is write down the position of the instrument under the line of this fixed star in static memory (RAM), notes the time of this moment simultaneously.The CPU of master controller and calculate the red astronomic coordinates that goes out this fixed star with respect to the observer then.Obtain two transformation relations between the coordinate system by finding the solution two transformation constants between the coordinate system.Microprocessor in the master controller (CPU) after calibration is finished, with the coefficient storage of the conversion between two coordinate systems in the RAM of master controller.
After microprocessor in the master controller (CPU) obtained the order of automatic star-seeking from keyboard, the microprocessor in the master controller (CPU) at first obtained the raw data of target celestial body from tabling look-up from the flash memory (FLASH) of master controller.Adopt the fixed star computing formula that is stored in the flash memory (FLASH) for fixed star, deep space celestial body, adopt VSOP87 mathematical model and the parameter that is stored in the flash memory (FLASH) for solar system celestial body, use middle Kepler's equation and the parameter that is stored in flash memory (FLASH) for asteroid and comet.Microprocessor in the master controller (CPU) is pressed the calculation process shown in the accompanying drawing 6 (calculation procedure), annual parallax calculating, solar parallax calculating, aberration calculating, precession calculating, nutating calculating, atmospheric refraction calculating are carried out to celestial body in raw data and time geographic position according to fixed star, calculate the observation position of target celestial body, by coordinate transform, calculate the target celestial body coordinate in the instrument under the line.
Microprocessor in the master controller (CPU) is calculating target celestial body under the line behind the coordinate in the instrument, universal serial bus by inside, give an order to the equatorial telescope driving governor, after the instruction of the microprocessor (CPU) of the microprocessor of equatorial telescope driving governor in receiving master controller, after the control direct current generator runs to assigned address.Microprocessor in the master controller (CPU) calculates the target celestial body this moment coordinate in the instrument under the line again.Because the target celestial body coordinate in the instrument under the line is constantly time dependent, controller constantly repeats aforementioned calculation, order, implementation, up to target celestial body under the line the error of the actual coordinate of the coordinate in the instrument and equatorial telescope in specified scope again.After automatic star-seeking finished, the perpetual motion of main controller controls equatorial telescope driving governor was followed the tracks of.
Claims (3)
1, a kind of automatic star search control device for portable astronomical telescope is characterized in that structure is made up of power input interface, master controller, equatorial telescope driving governor; Power input interface one end links to each other with dc supply input, the other end links to each other with control device internal electric source end, master controller comprises microprocessor (CPU), static memory (RAM), flash memory (FLASH), button, the graphic dot matrix LCD, hummer, the white light-emitting diode backlight, the white light-emitting diode illuminating lamp is formed, the RS232 serial line interface, internal serial bus, microprocessor (CPU) links to each other with flash memory (FLASH) with static memory (RAM) with address bus by data bus, microprocessor (CPU) links to each other with button by the I/O mouth respectively, the graphic dot matrix LCD, hummer, the white light-emitting diode backlight, the white light-emitting diode illuminating lamp links to each other, microprocessor (CPU) links to each other with global positioning receiver (GPS) module by the I/O mouth, the serial port one that microprocessor (CPU) passes through links to each other with level transferring chip, form the RS232 interface, the serial port two that microprocessor (CPU) passes through links to each other with chip for driving (74HC07), forms universal serial bus;
The equatorial telescope driving governor comprises chip microprocessor, bidirectional reversible PWM driving circuit, direct current generator, photoelectric code disk and photoelectric code disk testing circuit, current foldback circuit; chip microprocessor links to each other with bidirectional reversible PWM driving circuit by the I/O mouth; the output terminal of bidirectional reversible PWM driving circuit links to each other with direct current generator; the little processing of monolithic links to each other with the output terminal of photoelectric code disk testing circuit by the I/O mouth, and chip microprocessor links to each other by the input port of band AD and the current detecting mouth of bidirectional reversible PWM driving circuit.
2, automatic star search control device for portable astronomical telescope according to claim 1 is characterized in that the socket that universal serial bus externally connects all adopts 6 core 6P6C sockets.
3, automatic star search control device for portable astronomical telescope according to claim 1 is characterized in that power input interface by switch (K), diode (D1), and resistance (R1, R2), light emitting diode (L1, L2) is formed; Switch (K) is connected direct supply input anode, diode (D1), resistance (R1) are connected with switch (K) output terminal respectively, light emitting diode (L1) end other end and the direct supply input negative terminal that links to each other with resistance (R1) links to each other, resistance (R2) end links to each other with diode (D1), the other end with connect direct supply input negative terminal after light emitting diode (L2) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200692022U CN2881674Y (en) | 2006-02-09 | 2006-02-09 | Automatic star finding controller of portable astronomical telescope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200692022U CN2881674Y (en) | 2006-02-09 | 2006-02-09 | Automatic star finding controller of portable astronomical telescope |
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| CN2881674Y true CN2881674Y (en) | 2007-03-21 |
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| CNU2006200692022U Expired - Fee Related CN2881674Y (en) | 2006-02-09 | 2006-02-09 | Automatic star finding controller of portable astronomical telescope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226960A (en) * | 2017-12-29 | 2018-06-29 | 北京日月九天科技有限公司 | A kind of astronomical telescope that Global Navigation Satellite System direction-measuring function is configured |
-
2006
- 2006-02-09 CN CNU2006200692022U patent/CN2881674Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226960A (en) * | 2017-12-29 | 2018-06-29 | 北京日月九天科技有限公司 | A kind of astronomical telescope that Global Navigation Satellite System direction-measuring function is configured |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20140209 |