CN101393027A - Hand-held starry sky display equipment and starry sky display method - Google Patents
Hand-held starry sky display equipment and starry sky display method Download PDFInfo
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- CN101393027A CN101393027A CNA2008101806310A CN200810180631A CN101393027A CN 101393027 A CN101393027 A CN 101393027A CN A2008101806310 A CNA2008101806310 A CN A2008101806310A CN 200810180631 A CN200810180631 A CN 200810180631A CN 101393027 A CN101393027 A CN 101393027A
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Abstract
The invention relates to hand-held type starry sky display equipment and a starry sky display method which are used for displaying a distribution map of celestial bodies in the sky. The hand-held type starry sky display equipment comprises a display unit connected with a data processing unit, a non-volatile storage unit storing a celestial body information database, a three-dimensional attitude sensor, a control panel, a three-dimensional magnetic field sensor and at least one pointing shaft, wherein the data processing unit receives data transferred by the three-dimensional attitude sensor and the three-dimensional magnetic field sensor and works out the azimuth angle, the pitch angle and the roll angle of the pointing shaft in a horizontal coordinate system, and the display unit dynamically displays the celestial body distribution map of the local air space to which the pointing shaft points. The hand-held type starry sky display equipment and the starry sky display method have the advantages of having better precision, correctly judging celestial body objects, displaying the celestial body distribution in larger air space in real time and having convenient operation. The hand-held type starry sky display equipment and the starry sky display method are widely applied to the technical field of astronomical observation and research.
Description
Technical field
The present invention relates to a kind of electronic equipment and method that shows the celestial body distribution pattern in the astrosurveillance technical field, be specifically related to a kind of hand-held astral display device and starry sky display packing.
Background technology
The ordinary people generally is difficult to the identification sky at night, for example, finds star, the especially deep sky object of create name in can not be on high.For this reason, people develop multiple mode and can easier discern specific celestial body to assist the ordinary people.A kind of electronic installation of hand-held has been proposed as the United States Patent (USP) of patent No. us5311203, this device can be by a fixing tube of looking, observe actual sky, simultaneously, this device comprises built-in digital compass and attitude sensor, can real-time perception look the tube axially corresponding horizontal azimuth and the vertical angle of pitch, but and information such as the time of built-in microprocessor and database and user's input in the coupling apparatus, longitude and latitude, help the user at the actual day aerial celestial body of seeking appointment, perhaps the celestial body of the axis of tube Glassless pointed is looked in identification.After the celestial body of appointment enters the visual field of looking tube, also the information relevant with this celestial body can be presented on the display device.But this electronic installation has certain difficulty on reality is used: one, the precision of compass can be limited by several factors, may have bigger error, if look when occurring a plurality of similar celestial body in the visual field of tube, the user can't accurate judicious target, or with its identification celestial body the time, the judgement of mistake also can appear in equipment, gives the recognition result that makes mistake; Its two, this device designs for locating single celestial body, and the visual field of looking tube fixes and limited, the user can't see the distribution of celestial body in more large stretch of spatial domain, is unfavorable for that the user gets information about the relative position of celestial body.And the portable electric device similar to above-mentioned electronic installation also proposed in the United States Patent (USP) of patent No. us6844822, it also has same shortcoming.And for example, the multiple starry sky software for display that can move on personal computer at present also has similar functions, when the user imports the on-site longitude of correct observation station, latitude, the time zone, after the information such as time, these softwares can show the title of local day aerial celestial body distribution pattern and shown celestial body on the screen of computing machine, and these softwares generally can change the size of the visual field (the actual sky that screen display covered) easily, the actual day aerial celestial body distribution pattern that celestial body distribution pattern that shows on the screen by contrast and naked eyes are seen, the user just can pick out the aerial single celestial body in actual sky easily, also can be by the relative position of a plurality of celestial bodies of showing on the screen, roughly determine some than faint object actual day aerial position, so that use Equipment searching such as telescope and observe these darker celestial bodies.Though such software greatly facilitates the amateur astronomer and explores the night sky, but it still has following limitation: one, this software all is to move on personal computer, its volume and weight all can bring inconvenience to use, they are two years old, these softwares generally are to be that the celestial body distribution pattern in the local spatial domain is drawn at the center with an aerial point of sky, the coordinate of this central point can be represented with the vertical angle of pitch with horizontal azimuth, the user need change the position angle and the angle of pitch of this central point correspondence by keyboard or mouse, change the local sky that is presented on the screen, this use-pattern, cause the user under the situation that can't understand his interested target direction angle, for example a unfamiliar place, difficult these softwares that utilize select to be presented at local spatial domain on the graphic screen.
Summary of the invention
The object of the present invention is to provide a kind of precision better, accurately correct judgment celestial body target can show in real time that celestial body distributes in the big spatial domain, and easy to operate hand-held astral display device and method, to overcome deficiency of the prior art.
In order to realize the foregoing invention purpose, the present invention has adopted following technical scheme:
A kind of hand-held astral display device, be used to show the distribution pattern of day aerial celestial body, comprise that the housing of a hand-held, the display unit, that is connected with a data processing unit preserved Nonvolatile storage unit, a 3 d pose sensor and a control panel of celestial body document data base, it is characterized in that:
Particularly, this hand-held astral display device also has a three-D magnetic field sensor and at least one sensing axle, data processing unit is accepted the data of 3 d pose sensor and three-D magnetic field sensor transmission, and calculating position angle, the angle of pitch and the roll angle that points in the horizontal system of coordinates of axle place, display unit dynamically shows the celestial body distribution pattern that points to axle local spatial domain pointed.
This hand-held astral display device also has one and points to locking switch, this sensing locking switch can freeze to change the celestial body distribution pattern that dynamically shows because of pointing to axle on the display unit, data processing unit is remembered the positional information of a plurality of celestial bodies in the celestial body distribution pattern that is frozen on the display unit, accept the instruction of user simultaneously by the control panel input, select at least one specific celestial body in above-mentioned a plurality of celestial body, and provide information to the user about this specific celestial body by display screen, maybe this sensing locking switch can freeze to change the celestial body distribution pattern that dynamically shows because of pointing to axle on the display unit, at least one reference point on the data processing unit memory display unit and the corresponding relation of pairing day empty position, accept the instruction of user's input then, on display unit, redraw the celestial body distribution pattern of local sky according to above-mentioned corresponding relation.
The described celestial body distribution pattern that redraws local sky comprises amplification, dwindles, the celestial body distribution pattern of the local sky of translation.
This hand-held astral display device has at least the first in use and points to the axle and the second sensing axle, data processing unit points to axle or second according to the data computation first of 3 d pose sensor and three-D magnetic field sensor and points to position angle and the angle of pitch of axle in the horizontal system of coordinates, and select the first sensing axle or second to point to axle and point to as the reference of drafting celestial body distribution pattern, point to the variation that axle or second points to the axle direction with first on the display unit, this first sensing axle or second of dynamic drafting points to the celestial body distribution pattern in axle local spatial domain pointed.
Select the first sensing axle or the second sensing axle to be: to establish the initial employing first of this hand-held astral display device and point to the axle conduct with reference to sensing as the process of the reference sensing of drawing the celestial body distribution pattern, if first angle of pitch that points to axle is lower than a predetermined angle, promptly switch to and select second to point to axle as drawing the celestial body distribution pattern with reference to pointing to, be higher than predetermined angle until first angle of pitch that points to axle, switch again and select first to point to axle as drawing the celestial body distribution pattern with reference to pointing to.
Described 3 d pose sensor element is mainly become by the groups of acceleration sensors of three sensing shaft to quadrature, described three-D magnetic field sensor parts mainly are made up of to the magnetic field sensor of quadrature three sensing shaft, three orthogonal axes of three acceleration transducers to and three orthogonal axes of the sensing of three magnetic field sensors to consistent with reference to axially parallel and positive dirction with three of this hand-held astral display device self.
Described 3 d pose sensor element is connected with data processing unit by interface circuit with the three-D magnetic field sensor parts, interface circuit is to be sent to data processing unit after the digital signal with the analog-signal transitions of sensor element, data processing unit is according to the digital signal that derives from the 3 d pose sensor element, calculate the angle of pitch and the roll angle of this hand-held astral display device, then data processing unit is according to the above-mentioned angle of pitch, roll angle with derive from the digital signal of three-D magnetic field sensor parts, the position angle of calculating this hand-held astral display device.
Have a real time clock circuit in this hand-held astral display device, this real time clock circuit is connected with data processing unit.
One infrared module group unit is set in this hand-held astral display device, it comprises an infrared ray sensor, the simulating signal that infrared sensor output one changes with outside infrared signal intensity, when this signal arrives certain amplitude, then trigger a switching signal, and send to data processing unit, to drive this starry sky display device work.
A kind of starry sky display packing, it is characterized in that, this method is: adopt to have at least one hand-held astral display device that points to axle, this hand-held astral display device comprises that a display unit, that is connected with a data processing unit preserved the Nonvolatile storage unit of celestial body document data base, a 3 d pose sensor, a three-D magnetic field sensor and a control panel;
With the initialization of hand-held astral display device, thereafter accept the data of 3 d pose sensor and three-D magnetic field sensor transmission with data processing unit, and calculating position angle, the angle of pitch and the roll angle that points in the horizontal system of coordinates of axle place, display unit dynamically shows the celestial body distribution pattern that points to axle local spatial domain pointed.
This method specifically comprises the steps:
A. initialization flow process: time zone, the clock of adjusting user region in the hand-held astral display device, thereafter read or set through, latitude, sea level elevation data, microprocessor goes out the magnetic declination in the magnetic field of the earth at observation station place according to warp, latitude and the sea level elevation data computation of observation station;
B. a day body distribution pattern is drawn flow process: microprocessor reads the data of 3 d pose sensor, and the work at present pattern of judgement and switching hand-held astral display device, microprocessor utilizes the data of 3 d pose sensor transmissions, calculate the angle of pitch and the roll angle that point in the horizontal system of coordinates of axle place, microprocessor reads the data of three-D magnetic field sensor simultaneously, and in conjunction with the above-mentioned angle of pitch and roll angle, calculate axis of reference to magnetic azimuth with respect to the magnetic field of the earth, this magnetic azimuth adds the magnetic declination that calculates among the step a, for axis of reference to the position angle, display unit dynamically shows a celestial body distribution pattern that points to axle local spatial domain pointed;
C. the sensing locking switch that possesses with the hand-held astral display device freezes to change the celestial body distribution pattern that dynamically shows because of pointing to axle on the display unit, the data processing unit memory is frozen in the positional information of a plurality of celestial bodies in the celestial body distribution pattern that shows on the list, accept the instruction of user simultaneously by the control panel input, select at least one specific celestial body in above-mentioned a plurality of celestial body, and provide information to the user about this specific celestial body by display screen.
Described and judge and the process of switching the work at present pattern of hand-held astral display device is: microprocessor reads the 3 d pose sensing data, and calculate axis of reference to the angle of ground level, when the hand-held astral display device changes state, if angle is during less than a predetermined angle value, adopt the supine posture mode of operation, and if angle during greater than another predetermined angle, adopts the vertical working pattern.
A kind of hand-held astral display device can be used to show the distribution pattern of day aerial celestial body, and it comprises:
One dot matrix graphical display screen is used to show the celestial body graphical distribution;
One has preserved the nonvolatile storer of the database of celestial body data;
A microcomputer system that is connected with graphical display screen and storer;
It is characterized in that described graphics device adopts the method for timesharing and classification in the celestial body distribution pattern of drawing, show this celestial body title in each map target next door.
In this astral display device, according to the classification of celestial body brightness degree, timesharing shows the title of each celestial body with each celestial body in the celestial body distribution pattern.
In this astral display device, at first each celestial body in the celestial body distribution pattern is divided into two big classes by single celestial body and deep sky object, each celestial body in each big class is classified according to the celestial body brightness degree thereafter again, timesharing shows the title of each celestial body.
This hand-held astral display device is the horizontal azimuth and the vertical angle of pitch of awareness apparatus direction pointed at any time, and on a display screen for graphic presentation, be the center synchronously with this position angle and the pairing point of the angle of pitch, describe the celestial body distribution pattern in this center near zone, simultaneously, also can the celestial body distribution pattern that dynamic drafting goes out be locked, in locking, this hand-held astral display device can be remembered this equipment horizontal azimuth pointed and the vertical angle of pitch, and be the center according to the pairing sky corresponding point of this horizontal azimuth and the vertical angle of pitch, on graphic screen, draw local celestial body distribution pattern, and, the figure that shows on the screen, no longer change with the vertical angle of pitch with equipment horizontal azimuth pointed, cancel this sensing lock-out state up to the user, behind above-mentioned sensing lock operation, the user can be on the shown celestial body distribution pattern of display screen for graphic presentation, select he the icon of interested celestial body, obtain the details of this celestial body or carry out other relevant operations.Except describing the celestial body distribution pattern, device of the present invention also adopts the method for timesharing, classification, shows the title of each celestial body on the celestial body distribution pattern.Such method has realized effectively under limited screen resolution, both having shown the title of celestial body on hand-held this hand-held astral display device, has not destroyed the visuality of celestial body distribution pattern again.
This hand-held astral display device has two kinds of use patterns: upright mode and horizontal pattern, under upright mode, the back side of display screen for graphic presentation points into the sky, and comparatively optimize be, under the supine posture pattern, the back side directed towards ground of display screen for graphic presentation, the user can grip this equipment with comfortable mode, make axis of reference to parallel, and a distribution and the sight line of observing the aerial celestial body in sky that can come back is not subjected to any blocking with the direction of user's sight line.Under above-mentioned two kinds of use patterns, the celestial body distribution pattern that shows on the display screen for graphic presentation, be the user towards the projection that distributes of actual day aerial celestial body.This hand-held astral display device can switch between above-mentioned two kinds of use patterns automatically according to the state of the vertical angle of pitch of equipment.
In addition, this hand-held astral display device also can be by its infrared module group unit induction user, and the user activates " infrared triggering " pattern earlier, begins the switching signal state of detecting sensor output then, if infrared ray sensor is not triggered, then continue the state of query sensors; Be triggered if detect sensor, then promptly begin previously selected audio plays or video file.After the audio or video file finishes playing, then stop to play, once more the state of query sensors.If the signal of sensor is still effective, then start to play once more, such circulation, can last till sensor trigger pip disappear, promptly outside infrared signal disappears, promptly the user leaves.Can make this starry sky display device more convenient in use like this.
Compared with prior art, beneficial effect of the present invention is: this hand-held astral display device precision is better, and accurately correct judgment celestial body target can show in real time that celestial body distributes in the big spatial domain, and easy to operate.The present invention can be widely used in astronomical observation and studying technological domain.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
Fig. 1 is the profile synoptic diagram of a kind of hand-held astral display device specific embodiment in the specific embodiment of the invention;
Fig. 2 is the synoptic diagram of hand-held astral display device self axis of orientation among Fig. 1;
Fig. 3 is the coordinate synoptic diagram of hand-held astral display device in horizon system of coordinates among Fig. 1;
Fig. 4 is the vertical working pattern diagram of hand-held astral display device among Fig. 1;
Fig. 5 is the supine posture mode of operation synoptic diagram of hand-held astral display device among Fig. 1;
Fig. 6 is the electrical block diagram of hand-held astral display device among Fig. 1;
Fig. 7 is the initialization schematic flow sheet of hand-held astral display device among Fig. 1;
Fig. 8 is the schematic flow sheet that the celestial body distribution pattern is drawn in the circulation of hand-held astral display device among Fig. 1;
Fig. 9 is the schematic flow sheet that the hand-held astral display device screens celestial body to be shown among Fig. 1;
Figure 10 is a hand-held astral display device switching working mode schematic flow sheet among Fig. 1;
Figure 11 is a hand-held astral display device middle infrared (Mid-IR) sensing module workflow synoptic diagram among Fig. 1.
Embodiment
As shown in Figure 1, this hand-held astral display device is the handheld apparatus of a cuboid, it comprises a hand-held housing 1, one side of housing outer surface is provided with a rectangle colorful LCDs 2 that is used to show the celestial body distribution pattern, an one roller combined switch 3 and an operation keyboard 5, the housing inner chamber is provided with a microprocessor, one random access memory, one erasable read-only memory, one 3 d pose sensor element, one three-D magnetic field sensor parts, one real time clock circuit, circuit (Motion Dector) is extracted in one action, one infrared module group unit, an one serial communication interface and a USB interface, microprocessor is responsible for finishing relevant calculating and routine processes, it links to each other with assemblies such as above-mentioned storer and LCDs, and control their operation, random access memory is used for depositing machine code and data when microprocessor moves, erasable read-only memory is used to store pending machine code, the celestial body document data base, required other data of this hand-held astral display device operation, for example, the longitude and latitude of observation station, time zone etc., and the data that generate when using this starry sky display device of user, above-mentioned serial communication interface can be with this hand-held astral display device and electronic astronomical telescope, equipment such as GPS receiver connect and communication, and USB interface can be used for and the computing machine communication.
Above-mentioned rollers combined switch 3 is made up of a rotary incremental encoder and a pushbutton switch, rotary incremental encoder comprises two switches and a rotating disk, when rotating group is run the rotating disk of shutting jointly, two switches can provide two continually varying switching signals that phase place is different, other equipment can be according to the phase place of these two switching signals, number of times with the on off state variation, parse the direction and the angle of dial rotation, rotating disk is vertically pressed or when discharging, can be switched on or switched off pushbutton switch, promptly pushbutton switch is equivalent to a pushbutton switch that can reset certainly.Aforesaid operations keyboard 5 is made up of a plurality of buttons, and as four direction button, a menu key, a cancellation button, one confirms button, a device keys etc., and these buttons link to each other with a switch that can reset certainly respectively.
Above-mentioned 3 d pose sensor element and form to acceleration transducer from the magnetic field sensor of quadrature to quadrature and three sensing shaft by three sensing shaft respectively by the three-D magnetic field sensor parts, should the hand-held astral display device be in static or the uniform speed motion state under, these acceleration transducers can detect three quadratures axially on the terrestrial gravitation component of acceleration, Magnetic Sensor can detect three quadratures axially on magnetic-field component, three orthogonal axes of above-mentioned three acceleration transducers and three magnetic field sensors are to consistent with reference to axially parallel and positive dirction with three of this hand-held astral display device self.
Three axis of reference of above-mentioned hand-held astral display device self to definition as shown in Figure 2, display screen 2 is installed in the shell 1, axis of reference is to 40 surfaces perpendicular to display screen, its positive dirction is consistent with user's sight line, axis of reference is parallel with 51 with the vertical edge 49 of display screen 2 to 41, simultaneously also perpendicular to axis of reference to 40, its positive dirction is to go up horizontal edge 50 from following horizontal edge 52 sensings of display screen 2, axis of reference is to 42 horizontal edges 50 and 52 that are parallel to display screen 2, simultaneously also perpendicular to axis of reference to 40 and 41, its positive dirction is to point to vertical edge 51 from vertical edge 49, and the reference origin 53 of this hand-held astral display device is the mid point on display screen 2 surfaces, also be axis of reference to 40,41,42 intersection point.
Again, as shown in Figure 3, the reference origin 53 of this hand-held astral display device is positioned on the ground level 43, with reference origin 53 is the center, reference direction line 44 on the ground level 43 points to the positive north, it overlaps with projection on the earth's axis ground level, reference direction line 55 on the ground level 43 is vector projections on ground level 43 of the terrestrial magnetic field at equipment Location place, it is the magnetic north direction, suppose the point of axis of reference in 40 point into the sky of this equipment, axis of reference has a projection line 46 on ground level so, projection line 46 is position angle 48 with the angle of reference direction line 44, projection line 46 is a magnetic azimuth 54 with the angle of reference direction line 55, rotate to be the direction that position angle 48 and magnetic azimuth 54 increase from north orientation east, projection line 46 and axis of reference are the angle of pitch 47 to 40 angle, are the direction that the angle of pitch 47 increases from ground level to the direction of zenith rotation, roll angle 45 for axis of reference to 42 from horizontality, be the angle that rotating shaft was turned over axis of reference to 40.
This hand-held astral display device has two kinds of mode of operations, be vertical working pattern and supine posture mode of operation, as shown in Figure 4 and Figure 5, when the vertical working pattern, the axis of reference of this hand-held astral display device points into the sky to 40, and axis of reference is substantially parallel with surface level or have only the inclination of smaller angle to 42; When being in the supine posture mode of operation, the axis of reference of this hand-held astral display device points to ground levels to 40, and axis of reference points into the sky to 41, and axis of reference is substantially parallel with surface level or have only the inclination of smaller angle to 42.
Circuit structure in this hand-held astral display device as shown in Figure 6, above-mentioned 3 d pose sensor element is connected with microprocessor by interface circuit with the three-D magnetic field sensor parts, and LCDs, random access memory, erasable read-only memory, serial communication interface, USB interface, real time clock circuit and roller combined switch all are connected with microprocessor.
The workflow that this hand-held astral display device carries out the starry sky demonstration is as follows:
A. initialization flow process: as shown in Figure 7, start this hand-held astral display device, determine the time zone of the user region that real time clock shows in this equipment, whether clock is consistent with actual conditions, if it is inconsistent, then real-time clock is adjusted by operation keyboard, thereafter read or set warp, latitude, sea level elevation data etc., these data can be to have the user to import, or from erasable memory, read, microprocessor is according to the warp of observation station, latitude and sea level elevation data computation go out the magnetic declination in the magnetic field of the earth at observation station place, so that the position angle of follow-up program computing equipment;
B. a day body distribution pattern is drawn flow process: as shown in Figure 8, microprocessor at first reads the data of 3 d pose sensor by interface circuit, according to these data, at first judge the work at present pattern of this hand-held astral display device, with the vertical working pattern is example, microprocessor utilizes the data of 3 d pose sensor transmissions, calculate and point in the horizontal system of coordinates of axle place the angle of pitch and the roll angle of (be axis of reference to), microprocessor reads the data of three-D magnetic field sensor by interface circuit simultaneously, and in conjunction with the above-mentioned angle of pitch and roll angle, calculate axis of reference to magnetic azimuth with respect to the magnetic field of the earth, after above-mentioned magnetic azimuth added the magnetic declination that calculates among the step a, can obtain axis of reference to the position angle, the above-mentioned angle of pitch and position angle are compared with the angle of pitch that formerly writes down and position angle, whether the axis of reference of judging this equipment turns over to bigger angle, if the angle that turns over is little, then restart to take turns the sampling calculating of the position angle and the angle of pitch, if turn over bigger angle, then calculate axis of reference to the counterparty of institute to hour angle and declination, microprocessor reads the data of real-time clock, and in conjunction with the warp in the initialize routine, latitude, data computation such as sea level elevation data go out the local sidereal time, local sidereal time of foundation and axis of reference are to the hour angle of correspondence, declination, then can calculate axis of reference to right ascension pointed, the declination coordinate, with this right ascension, the declination coordinate is the center, microprocessor can be retrieved the celestial body database of storing in the erasable memory, the inventory of the celestial body that generation can show on screen, according to this inventory, microprocessor is plotted in the celestial body distribution pattern on the display screen, the user selects whether temporarily to freeze current celestial body distribution pattern to be shown, and run the pushbutton switch shut jointly by roller set and realize or remove this and freeze operation, do not freeze if select, then re-execute above-mentioned flow process from reading the 3 d pose sensing data once more, freeze if select, then the starry sky that temporarily keeps on the display screen of microprocessor shows the data variation no longer follow sensor, simultaneously, also preserve the last axis of reference that calculates to the position angle and the angle of pitch, and the inventory of the last celestial body that can on display screen, show that generates, carry out other operations again, such as, utilize this hand-held astral display device on the celestial body distribution pattern on the display screen, to superpose and show a cursor, the user moves this cursor with the directionkeys that is arranged on the operation keyboard, it is positioned on the specific celestial body in the celestial body distribution pattern, the more information of this celestial body can be searched and provide to the user to microprocessor from the celestial body database then, since preserved axis of reference to position angle and the angle of pitch, microprocessor just can calculate the position angle and the angle of pitch of the pairing sky of any one screen coordinate, so, the user also can use the roller key order should the hand-held astral display device to amplify or dwindle the celestial body distribution pattern as the local sky at center with the screen cursor place, amplifieroperation wherein can provide the celestial body distribution pattern of the more detail of this part sky on screen, reduction operation will increase the scope of the local sky that screen graph covers, the user can control this hand-held astral display device and begin the above-mentioned flow process of circulation execution from reading the 3 d pose sensing data after execute other operations once more.
As shown in Figure 9, the flow process of utilizing this hand-held astral display device to screen celestial body to be shown is:
At first read in the celestial body database right ascension of a celestial body, declination coordinate, and calculate the hour angle of local sidereal time, celestial body successively by microprocessor;
According to this hour angle of heavenly body and celestial body declination coordinate, microprocessor calculates the position angle and the angle of pitch of this celestial body, then calculates celestial body and projects to coordinate on the display screen, and according to this screen coordinate, whether this celestial body of microprocessor judges can occur in the screen scope;
If this celestial body is projected in outside the display screen scope, then microprocessor will finish retrieval;
And if this celestial body projects in the display screen scope, storing into for information about in the inventory then with this celestial body, these information comprise that calculating celestial body projects to the coordinate on the display screen and the position of data in the celestial body database of this celestial body, subsequently, microprocessor will judge whether to have retrieved the database end, if do not retrieve the database end, then prepare the data of next celestial body in the reading database, if retrieved the database end, then finish searching database, and draw the celestial body distribution pattern with the inventory of the celestial body to be shown that generates.
Screen in the celestial body flow process to be shown at this, the coordinate at display screen center corresponding to calculate axis of reference to the angle of pitch, roll angle and azimuthal projection.
Again, because of this hand-held astral display device is a portable equipment, the screen resolution of the LCDs of its outfit is generally in the 320X24 pixel, the celestial body number that shows in screen more for a long time, the title that on screen, shows whole celestial bodies if desired simultaneously, then can cause screen display comparatively chaotic, be difficult for seeing clearly the situation that celestial body distributes.Therefore, should can adopt the method circulation of classification, branch brightness, timesharing to show the title of celestial body by the hand-held astral display device, for example, circulation shows the title of celestial body in the following order:
Display brightness is higher than the name of the fixed star and the planet of 1.0 grades, shows after 2 seconds, allows these names disappear;
Display brightness shows after 2 seconds between the title of 1.0 and 2.0 etc. fixed star, allows these names disappear;
Display brightness shows after 2 seconds between the title of 2.0 and 3.0 etc. fixed star, allows these names disappear;
Display brightness is higher than the deep sky object of 6 grades, and the title as galaxy, nebula star bunch etc. showed after 2 seconds, allowed these names disappear;
Display brightness is between the deep sky object of 6 grades and 8 etc., and the title as galaxy, nebula star bunch etc. showed after 2 seconds, allowed these names disappear;
Get back to the first step.
By adopting this method, can be so that can not occur the name of a large amount of celestial bodies on the display screen simultaneously, the display effect of celestial body distribution pattern can be not destroyed.
In the above-mentioned explanation, all be to serve as the principle of work of this equipment of reference explanation with the working method of this hand-held astral display device under the vertical working pattern, this vertical use-pattern has the celestial body distribution pattern characteristics consistent with background sky of screen display, and sensation in the use is very directly perceived.But comparatively the mode of You Huaing is second kind of use pattern of this hand-held astral display device, and promptly supine posture uses pattern, and this use-pattern will not lifted high the use by this hand-held astral display device, also can not cause apparatus body to block sight line yet.Under supine posture use pattern, the axis of reference of this hand-held astral display device points to below the ground level to 40, be not re-used as the sensing axle of this equipment, and with axis of reference to 41 as pointing to axle, the angle of pitch 47 of this equipment direction be axis of reference to 41 and ground level between angle, its roll angle 45 for axis of reference to 42 from horizontality, around the angles of axis of reference to 41 rotations, and the position angle of this equipment direction is an axis of reference to 41 at projection on the ground level 43 and the angle between the urecholine chloride directional ray 44 just.Under supine posture use pattern, calculate the flow process and the method at the angle of pitch 47, roll angle 45 and position angle 48, and be similar under the vertical use pattern.Under the supine posture mode of operation, the user can grip this equipment with comfortable mode, make axis of reference parallel with the direction of user's sight line to 41, the user can come back and observe day distribution of aerial celestial body and do not blocked sight line by this equipment, bow the then celestial body distribution pattern in the corresponding spatial domain that shows on the screen 2 of this equipment of watching is searched information such as celestial body title.
Need to prove that this hand-held astral display device can also switch automatically between these two kinds of patterns except possessing above-mentioned two kinds of mode of operations.As shown in figure 10, microprocessor reads the 3 d pose sensing data, and calculate axis of reference to 40 with the included angle A of ground level 43, if this hand-held astral display device is initially the vertical working mould, judge included angle A＜-10 degree, then change the supine posture mode of operation into, and if included angle A+10 degree change the vertical working pattern into, after treating the mode of operation of selected this hand-held astral display device, promptly carry out follow-up flow process, as calculate axis of reference to the angle of pitch and roll angle etc.
Infrared module group unit comprises an infrared ray sensor in this hand-held astral display device, this infrared ray sensor is connected with microprocessor, the simulating signal that infrared sensor output one changes with outside infrared signal intensity, when this signal arrives certain amplitude, then trigger a switching signal, and send to data processing unit, to drive this starry sky display device work.As shown in figure 11, this hand-held astral display device in use, the user activates " infrared triggering " pattern earlier, and the switching signal state of beginning detecting sensor output, if infrared ray sensor is not triggered, then continues the state of query sensors; Be triggered if detect sensor, then begin previously selected audio plays or video file immediately.After the audio or video file finishes playing, then stop to play, again the state of query sensors.If the signal of sensor is still effective, then start once more and play, such circulation can last till that the trigger pip of sensor disappears, promptly outside infrared signal disappears.
Above embodiment only is preferably a kind of in the technical solution of the present invention; enlightenment by this example; those skilled in the art can propose multiple and the present invention's various schemes roughly the same; should illustrate; everyly conceive identical technical scheme, all within claims protection domain of the present invention with the present invention.
Claims (15)
1. hand-held astral display device, be used to show the distribution pattern of day aerial celestial body, comprise that the housing of a hand-held, the display unit, that is connected with a data processing unit preserved Nonvolatile storage unit, a 3 d pose sensor and a control panel of celestial body document data base, it is characterized in that:
This hand-held astral display device also has a three-D magnetic field sensor and at least one sensing axle, data processing unit is accepted the data of 3 d pose sensor and three-D magnetic field sensor transmission, and calculating position angle, the angle of pitch and the roll angle that points in the horizontal system of coordinates of axle place, display unit dynamically shows the celestial body distribution pattern that points to axle local spatial domain pointed.
2. hand-held astral display device according to claim 1, it is characterized in that this hand-held astral display device also has one and points to locking switch, this sensing locking switch can freeze to change the celestial body distribution pattern that dynamically shows because of pointing to axle on the display unit, data processing unit is remembered the positional information of a plurality of celestial bodies in the celestial body distribution pattern that is frozen on the display unit, accept the instruction of user simultaneously by the control panel input, select at least one specific celestial body in above-mentioned a plurality of celestial body, and provide information to the user about this specific celestial body by display screen, maybe this sensing locking switch can freeze to change the celestial body distribution pattern that dynamically shows because of pointing to axle on the display unit, at least one reference point on the data processing unit memory display unit and the corresponding relation of pairing day empty position, accept the instruction of user's input then, on display unit, redraw the celestial body distribution pattern of local sky according to above-mentioned corresponding relation.
3. hand-held astral display device according to claim 2 is characterized in that the described celestial body distribution pattern that redraws local sky comprises amplification, dwindles, the celestial body distribution pattern of the local sky of translation.
4. hand-held astral display device according to claim 1, it is characterized in that this hand-held astral display device has at least the first in use and points to the axle and the second sensing axle, data processing unit points to axle or second according to the data computation first of 3 d pose sensor and three-D magnetic field sensor and points to position angle and the angle of pitch of axle in the horizontal system of coordinates, and select the first sensing axle or second to point to axle and point to as the reference of drafting celestial body distribution pattern, point to the variation that axle or second points to the axle direction with first on the display unit, this first sensing axle or second of dynamic drafting points to the celestial body distribution pattern in axle local spatial domain pointed.
5. hand-held astral display device according to claim 4, it is characterized in that selecting the first sensing axle or second sensing a process to be: to establish the initial employing first sensing axle conduct of this hand-held astral display device with reference to sensing as the reference sensing of drawing the celestial body distribution pattern, if first angle of pitch that points to axle is lower than a predetermined angle, promptly switch to and select second to point to axle as drawing the celestial body distribution pattern with reference to pointing to, be higher than predetermined angle until first angle of pitch that points to axle, switch again and select first to point to axle as drawing the celestial body distribution pattern with reference to pointing to.
6. according to claim 1 or 4 described hand-held astral display devices, it is characterized in that described 3 d pose sensor element is mainly become by the groups of acceleration sensors of three sensing shaft to quadrature, described three-D magnetic field sensor parts mainly are made up of to the magnetic field sensor of quadrature three sensing shaft, three orthogonal axes of three acceleration transducers to and three orthogonal axes of the sensing of three magnetic field sensors to consistent with reference to axially parallel and positive dirction with three of this hand-held astral display device self.
7. according to claim 1 or 4 described hand-held astral display devices, it is characterized in that described 3 d pose sensor element is connected with data processing unit by interface circuit with the three-D magnetic field sensor parts, interface circuit is to be sent to data processing unit after the digital signal with the analog-signal transitions of sensor element, data processing unit is according to the digital signal that derives from the 3 d pose sensor element, calculate the angle of pitch and the roll angle of this hand-held astral display device, then data processing unit is according to the above-mentioned angle of pitch, roll angle and the digital signal that derives from the three-D magnetic field sensor parts, the position angle of calculating this hand-held astral display device.
8. hand-held astral display device according to claim 1 is characterized in that having a real time clock circuit in this hand-held astral display device, and this real time clock circuit is connected with data processing unit.
9. hand-held astral display device according to claim 1, it is characterized in that being provided with in this hand-held astral display device an infrared module group unit, it comprises an infrared ray sensor, the simulating signal that infrared sensor output one changes with outside infrared signal intensity, when this signal arrives certain amplitude, then trigger a switching signal, and send to data processing unit, to drive this starry sky display device work.
10. starry sky display packing, it is characterized in that, this method is: adopt to have at least one hand-held astral display device that points to axle, this hand-held astral display device comprises that a display unit, that is connected with a data processing unit preserved the Nonvolatile storage unit of celestial body document data base, a 3 d pose sensor, a three-D magnetic field sensor and a control panel;
With the initialization of hand-held astral display device, thereafter accept the data of 3 d pose sensor and three-D magnetic field sensor transmission with data processing unit, and calculating position angle, the angle of pitch and the roll angle that points in the horizontal system of coordinates of axle place, display unit dynamically shows the celestial body distribution pattern that points to axle local spatial domain pointed.
11. starry sky display packing according to claim 10 is characterized in that this method specifically comprises the steps:
A. initialization flow process: time zone, the clock of adjusting user region in the hand-held astral display device, thereafter read or set through, latitude, sea level elevation data, microprocessor goes out the magnetic declination in the magnetic field of the earth at observation station place according to warp, latitude and the sea level elevation data computation of observation station;
B. a day body distribution pattern is drawn flow process: microprocessor reads the data of 3 d pose sensor, and the work at present pattern of judgement and switching hand-held astral display device, microprocessor utilizes the data of 3 d pose sensor transmissions, calculate the angle of pitch and the roll angle that point in the horizontal system of coordinates of axle place, microprocessor reads the data of three-D magnetic field sensor simultaneously, and in conjunction with the above-mentioned angle of pitch and roll angle, calculate axis of reference to magnetic azimuth with respect to the magnetic field of the earth, this magnetic azimuth adds the magnetic declination that calculates among the step a, for axis of reference to the position angle, display unit dynamically shows a celestial body distribution pattern that points to axle local spatial domain pointed;
C. the sensing locking switch that possesses with the hand-held astral display device freezes to change the celestial body distribution pattern that dynamically shows because of pointing to axle on the display unit, the data processing unit memory is frozen in the positional information of a plurality of celestial bodies in the celestial body distribution pattern that shows on the list, accept the instruction of user simultaneously by the control panel input, select at least one specific celestial body in above-mentioned a plurality of celestial body, and provide information to the user about this specific celestial body by display screen.
12. starry sky display packing according to claim 10, the process that it is characterized in that the work at present pattern of described and judgement and switching hand-held astral display device is: microprocessor reads the 3 d pose sensing data, and calculate axis of reference to the angle of ground level, when the hand-held astral display device changes state, if angle is during less than a predetermined angle value, adopt the supine posture mode of operation, and if angle during greater than another predetermined angle, adopts the vertical working pattern.
13. a hand-held astral display device can be used to show the distribution pattern of day aerial celestial body, it comprises: a dot matrix graphical display screen is used to show the celestial body graphical distribution; One has preserved the nonvolatile storer of the database of celestial body data; A microcomputer system that is connected with graphical display screen and storer;
It is characterized in that described astral display device adopts the method for timesharing and classification in the celestial body distribution pattern of drawing, show this celestial body title in each map target next door.
14. hand-held astral display device according to claim 13 is characterized in that in this astral display device, according to the classification of celestial body brightness degree, timesharing shows the title of each celestial body with each celestial body in the celestial body distribution pattern.
15. according to claim 13 or 14 described hand-held astral display devices, it is characterized in that in this astral display device, at first each celestial body in the celestial body distribution pattern is divided into two big classes by single celestial body and deep sky object, thereafter each celestial body in each big class is classified according to the celestial body brightness degree, timesharing shows the title of each celestial body again.
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| CN2008101806310A CN101393027B (en) | 2008-11-18 | 2008-11-18 | Hand-held starry sky display equipment and starry sky display method |
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| CN111179649A (en) * | 2019-11-22 | 2020-05-19 | 广东小天才科技有限公司 | Wearable device-based astronomical knowledge learning method and wearable device |
| CN111179649B (en) * | 2019-11-22 | 2021-11-05 | 广东小天才科技有限公司 | Wearable device-based astronomical knowledge learning method and wearable device |
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