JP3515987B2 - World map clock - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information terminal, a navigation system, a television receiver, and a micro-clock incorporated in a wall clock, a table clock, a portable clock, a wristwatch, and the like. By executing the computer program written in the application program ROM of the computer 9, the world map 2 is displayed on the display screen 1 connected to the microcomputer 9 with the daytime portion 3 bright and the nighttime portion 4 dark. In addition, the location where the sun, moon, main planets and stars, and main nebula and star clusters are directly above (Sun: 6, Moon: 7) is shown on the world map 2, and several parts of the world The present invention relates to a world clock that displays time 8 of major cities. [0002] Humans have lived on the earth, and since ancient times, time has been determined from the position of the sun, the number of days per month has been determined from the phase of the moon, and the season has been determined from the position of the stars. And they basically work during the bright daytime hours and rest during the dark nighttime hours. However, because the earth's axis is tilted, the sun, moon and stars not only move at a constant speed from east to west, but also move north and south every year, in conjunction with the movement of the sun The shape of the day and night on the earth changes every year, and it is difficult to reproduce these with one simple mechanical device. For this reason, clocks that convey time are generally different from the operation of these celestial bodies, and in recent years, analog clocks that display time with hands and digital clocks that display time with numbers have recently been used as devices that simply tickle time at a fixed speed. Time is used as the rhythm of human life, the movement of the day and night, which is the time zone of human activity and rest, the movement of the moon which counts the number of days and is greatly related to the ebb and flow of the tide, and also every season It is rarely caught in connection with the movement of stars that shine in the night sky and entertain the eyes of people. In particular, the movement of day and night and the movement of the sun and moon could be captured on the world map, but the movement of stars could not be easily captured visually.
(For example, Japanese Patent Publication No. 54-104936, Mitsuto 302
See No. 7820. [0003] The present invention is based on a display screen 1 connected to a microcomputer 9 in which a computer program is written.
It is intended to easily capture the movement of stars visually in conjunction with the movement of the sun and the moon, so that daytime parts 3 and nighttime parts 4 of the world can be immediately recognized on the world map 2 with time,
Planets such as the Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, stars such as 1st, 2nd, and some 3rd stars, and major nebulae and clusters on the World Map 2 are true. By making it easy to know the upper position (sun: 6, moon: 7), the time at that time is visualized as related to the movement of the sun, moon, and stars, the source of the rhythm of human life The purpose is to grasp. That is, the present invention superimposes a conventional globe or a world map that develops it on a plane and a celestial globe or a planetarium that projects it on a hemisphere by a computer program, and superimposes them on the display screen 1 of the microcomputer 9. Its purpose is to understand the movement of the world day and night, the sun, the moon, and the stars. [0004] In order to achieve the above object, in the present invention, the present invention is incorporated into a portable information terminal, a navigation system, a television receiver, a wall clock, a table clock, a portable clock, a wrist watch, and the like. Central processing unit (CPU), system ROM, application software ROM, execution RAM, display video RA
M, a ROM for application software of the microcomputer 9 composed of a clock function, etc.
(A) Sub-program for calculating calendar time, (B) Sub-program for calculating RA and declination of major celestial bodies, (C)
(D) Sub-program that calculates and draws the light-dark field line
A sub-program that fills the night part in advance, (e) a sub-program that reads and displays world map data,
(F) a sub-program that redraws the bright and dark lines with the calendar time, (g) a sub-program that shows the position where the main celestial body is right above, (h) a sub-program that displays the date and time, etc. G) Sub-additions to add other supplementary matters
By writing a computer program constituted by the program and executing the program, on the display screen 1 capable of densely displaying hundreds of dots or more points in a grid pattern connected to the microcomputer 9 or more, By displaying the world map 2 with the daytime part 3 bright and the nighttime part 4 dark by Mercator projection, grid projection, equidistant projection, etc., the sun, moon, Mercury, Venus, Mars, Jupiter are displayed on the world map 2. , Planets such as Saturn, 1st star, 2nd star, some 3
A world clock that shows the positions where the stars such as equal stars and the main nebula and clusters are directly above (sun: 6, moon: 7), and also displays the time 8 of some major cities in the world I do. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, a display screen 1 connected to a microcomputer 9 makes it easy to visually sense the movement of stars in conjunction with day and night movements, the sun and moon movements of the world. World map 2 with time
The day part 3 and the night part 4 of the world are immediately visible on the map, and the sun, moon, Mercury, Venus,
Planets such as Mars, Jupiter, and Saturn, 1st and 2nd stars, some 3rd and other stars, and major nebulae and clusters are located directly above (Sun: 6, Moon: 7) This is a ROM for application software in which a computer program for realizing a function as a world map clock, which has been known, is recorded. The present invention realizes a central processing unit (CPU) incorporated in a portable information terminal, a navigation system, a television receiver, a wall clock, a table clock, a portable clock, a wristwatch, a system ROM, and a world map clock. ROM for the application software, on which a computer program for causing
M, a video RAM for display, a clock function, etc., connected to a microcomputer 9, on a display surface 1 capable of densely displaying several hundred or more dots in a grid and several hundred dots or more, a Mercator projection, a grid The world map 2 is displayed with the daytime portion 3 bright and the nighttime portion 4 dark by projection, equidistant projection, etc., and the sun, moon, Mercury,
Planets such as Venus, Mars, Jupiter and Saturn, stars such as 1st and 2nd stars, and some stars such as 3rd stars, and positions where the main nebula and clusters are located directly above (Sun: 6, Moon: 7) And the time 8 of several major cities in the world are displayed. In order to realize this world map clock, a computer program consisting of the following sub-programs is provided. At the start, (c) to (o) are included, and otherwise, (c) to (o) are excluded. Execute repeatedly. [0008] instead of draw of the day and night part of the world as a world clock function by the sub-program this computer program to calculate the time (a) calendar table, the sun, the moon, the major planets, stars, main nebula - The cycle of redrawing the position where the star cluster comes directly above is 1 second. However, if the time exceeds 1 second due to the limitation of the CPU or the display speed of the display screen 1, the cycle is set to a certain time interval, so that the cycle is set to 5 seconds or 10 seconds based on the date and time indicated by the clock function of the microcomputer 9. Calculate the calendar time each time. [0009] (a) through red major celestial, by substantially formula of based on ephemeris time calculated by the sub-program (A) to calculate the declination, issued for example Maritime Safety Agency waterway section "celestial calendar" Calculate the right ascension and declination where planets such as the Sun, Moon and Mercury, Venus, Mars, Jupiter, and Saturn are located, respectively. At that time, the radius of each planet in the center-of-center coordinate system and the radius of the moon in the center-of-center coordinate system are also calculated. [0010] (c) Calculating and drawing a bright-dark field line
A display screen that calculates a light / dark field line 5 that divides the daytime part 3 and the nighttime part 4 of the world based on the right ascension and declination of the sun calculated in the program (a), and displays the world map 2 in (e). 1, the light-dark field line 5 is drawn in gray in advance. Assuming that the longitude and the latitude of a certain point on the light / dark field line 5 are A degrees and the latitude is B degrees, B = a
It is given as rctan (cos (AU + T) / tanV). Here, T degree is the Greenwich time at that time,
U degrees and V degrees represent the right ascension and declination of the sun at that time, respectively. However, this formula cannot be applied when the declination of the equinox and the equinox is zero, and the boundary between day and night is a great circle passing through the North Pole and the South Pole. [0011] The light-dark boundary line 5, which was drawn as a boundary in the (d) pre-coating ulcer be sub-program a part of the night (c), was calculated by the display screen 1 to display a world map 2 (e) (i) The part opposite to the position 6 where the sun is directly above is painted in gray as a night part 4 in advance. (E ) Sub-program for reading and displaying world map data The data of the world map 2 drawn by the Mercator projection, the grid projection, the equidistant projection, etc. is read, and the display screen 1 connected to the microcomputer 9 displays ( In (d), a night part 4 is displayed by being superimposed on a screen painted in gray in advance. The world map 2 is prepared in advance as the least color scheme, for example, the plain is green, the highlands are yellow, the mountains are brown (or orange, magenta, etc.), the sea is blue, and the Antarctica and Arctic islands are bright white. Keep it. [0013] calculated in the (mosquito) calendar table when sub-replace to draw the light and dark boundary line along with the program change with ephemeris time calculated in (a) (b)
The light / dark field line 5 shown in (c) is drawn according to the position 6 where the sun based on the right ascension and declination where the sun is located is right above, and the night part 4 filled in (d) as a whole is continuous. Change. In this case, the light-dark field line 5 on the west side of the position 6 where the sun comes directly above corresponds to the boundary between daytime and nighttime in the morning, and the color of the world map 2 at that portion is bright when it is dark for each display unit of the display screen 1; If it is already bright, leave it alone. Also,
The eastern light / dark field line 5 at the position 6 where the sun comes directly above corresponds to the boundary between daytime and nighttime in the evening, and the color of the world map 2 is dark if it is bright for each display unit of the display screen 1 and dark if it is already dark. Leave as is. [0014] (g) The main celestial bodies has been calculated by the sub-program that illustrates a position to come to just above (i) the sun, the moon and Mercury, the right ascension of Venus, Mars, Jupiter, the planet such as Saturn is located, red These objects are shown on the world map 2 based on the first and second stars, some third stars and other stars known as latitude and astronomical data, as well as the RA and declination of major nebulae and clusters. The positions directly above (sun: 6, moon: 7) are shown as changing with time. In this case, the order of redrawing the positions of these celestial bodies that are directly above the world map 2 is deleted and the original world map 2 is deleted.
When returning to, the moon, the sun, Mercury, Venus, Mars, Jupiter, Saturn, 1st star, 2nd star, 3rd star, nebula / cluster are erased in this order, and a new figure is shown on the world map 2. Time is reversed. However, when erasing the Sun, Mercury, and Venus and returning to the original World Map 2, if Mercury and Venus pass inside the Sun, then Venus, Mercury, and the Sun. If only Mercury passes inside the Sun, In the order of Mercury, the Sun, and Venus, when only Venus passes inside the Sun, the order is Venus, the Sun, and Mercury. After erasure, the reverse is applied when a new figure is shown on the world map 2. The position where each celestial object is directly above the world map 2 is, for example, the sun and the moon are filled circles represented by 7 points in diameter, and the planets are filled circles represented by 5 points in diameter. Circles, 1st stars are filled diamonds represented by 5 dots vertically and horizontally, 2nd stars are filled squares represented by 3 dots vertically and horizontally, 3rd stars are shown diagonally by 3 dots. × shape, nebula
The star cluster is illustrated by a plaid diamond represented by five dots in the vertical and horizontal directions. Also, as the least color scheme, for example, the sun is red, the moon is white, Mercury is blue, Venus is yellow, Mars is brown (or orange, magenta, etc.), Jupiter is brown (or orange, magenta, etc.) Yellow horizontal stripes, Saturn use a yellow-blue ring, stars use colors that are close to their respective spectral types, and nebulae / clusters use colors that are close to visible. At that time, the sun and the moon always use bright colors, and the stars and nebulae / clusters are placed in the bright daytime part 3 on the world map 2 so that their positions can be determined even if they have the same color as the background world map 2 A dark color is used for the illustration, and a bright color is used for the dark night part 4. [0015] (viii) the date and time, such as date and time of that time to the part or the like of the world map 2 sea each time to calculate the time ephemeris in the sub-program (A) to display, each of the red of the sun and the moon The longitude and the declination are displayed, and the times 8 of several major cities in the world are displayed in the margins of the display screen 1 and the like. [0016] (Ke) sub-program to set the underlying time of the clock function of the micro-computer 9 in calculating the time ephemeris in the sub-program (A) to which you want to add the other supplementary matters, (i ) The sub-program that determines and displays the eclipse and lunar eclipse based on the ascension of the sun and the moon, the declination, the distance between the earth and the sun, the moon, the radius of the sun, the earth, and the moon calculated in
There is a subprogram or the like that illustrates the phase of the moon when the position 7 where the moon is directly above is illustrated based on the relationship between the sun and the right ascension of the moon calculated in (a), that is, the age of the moon. In order to realize this world map clock,
Computer program is a central processing unit
(CPU), system ROM, application software
ROM for software, RAM for execution, video RA for display
Microcomputer composed of M, clock function, etc.
9 as application software ROM
It is used by being recorded on a recording medium. [0018] EXAMPLES Referring to the drawings for Example,
The world map of FIG. 1 is an example using the Mercator projection,
Shows the day and night of the world at noon in Japan during the summer solstice. The shape of the day and night portions moves from east to west with a period of one day along with time, and the shape changes with a period of one year, and the north and south are replaced. FIG . 2 is a sectional view of an apparatus showing an embodiment in which a liquid crystal display panel is used for a display screen. The apparatus includes a central processing unit (CPU), a system ROM, an application software ROM, an execution RAM, Video RA for display
Write to application software ROM of microcomputer 9 composed of M, clock function, etc.
By executing the computer program , the world map 2 on the display screen 1 connected to the microcomputer 9 makes the day part 3 bright and the night part 4 dark.
And planets such as the sun, moon, Mercury, Venus, Mars, Jupiter, and Saturn, stars such as the 1st, 2nd, and some 3rd stars, and the main nebula on the world map 2. The locations where the clusters are directly above (sun: 6, moon: 7) are shown together with the time 8 of some major cities in the world. In order to realize this world map clock, (a)
The sub-program for calculating the calendar time, (a) the sub-program for calculating the right ascension and declination of the main celestial body, (c) the sub-program for calculating and drawing the dark and dark field lines, and (d) the night part A sub-program that fills in advance, (e) a sub-program that reads and displays world map data, (f) a sub-program that redraws the bright and dark lines with the calendar time,
(G) A sub-program that shows the position where the main celestial body is right above, (G) A sub-program that displays the date and time, and (G) A sub-program that adds other supplementary items Run the computer program you want. A computer for realizing this world map clock
The computer program has a central processing unit (CP)
U), system ROM, application software
ROM, execution RAM, display video RAM, clock
Application of microcomputer 9 composed of functions
Recording media as application software ROM
It is recorded and used. As described above, the present invention illustrates the day and night parts of the world on a world map based on the Mercator projection, the grid projection, the equidistant projection, etc.
Shows where the moon, major planets / stars, and major nebulae / clusters are directly above, along with the time of several major cities in the world. [0023] In this way the world map timepiece of the present invention is, visually and easily the day of the world and the night part and the sun, the moon, the major planets,
Stellar, as the main visual world watch the nebula, star clusters can be seen the position to come in just above each, portable information terminals, navigation systems, television set, and even wall clocks, table clocks, watch, Oite use to watch, etc. it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment using a world map by the Mercator projection. FIG. 2 is a sectional view of an apparatus showing an embodiment using a liquid crystal display panel for a display screen. [Explanation of Signs] 1 Display screen 2 World map 3 Day part of the world 4 Night part of the world 5 Light and dark field line 6 that separates the day part and the night part of the world 6 The position where the sun comes directly above July is directly above July 8 locations of major cities in the world 9 micro computer

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) G04G 1/00 G09B 27/00 G06F 15/02 G04G 9/00

Claims (1)

(57) [Claims] 1. A microcomputer comprising a central processing unit (CPU), a system ROM, an application software ROM, an execution RAM, a display video RAM, a clock function, and the like. (9) An application software ROM in which a computer program for realizing a world map clock comprising the following (A) to (K) is recorded. (A) The calendar time is calculated every 1 second, 5 seconds or 10 seconds based on the date and time indicated by the clock function of the microcomputer (9). (B) Based on the calendar time calculated in (a), the sun,
Calculate RA and Decl. Where planets such as the Moon and Mercury, Venus, Mars, Jupiter, and Saturn are located. (C) Based on the right ascension and declination of the sun calculated in (a), calculate the light / dark field line (5) that separates the daytime part (3) and the nighttime part (4) of the world at that time. The light / dark field line (5) is drawn in gray on the display screen (1) displaying the world map (2) in advance. (D) A display screen (1) displaying the world map (2) in (e), with the bright-dark line (5) drawn in (c) as the boundary
In the night part (4) on the opposite side from the right ascension where the sun calculated in (a) is located and the sun based on declination (6).
Is painted in gray in advance. (E) The data of the world map (2) drawn by the Mercator projection, the grid projection, the equidistant projection, etc. is read, and the display screen (1) connected to the microcomputer (9) is displayed in (d).
In this case, a night portion (4) is superimposed and displayed on a screen painted in gray in advance. (F) It changes with the calendar time calculated in (a). It is shown in (c) according to the position (6) where the sun based on RA and declination where the sun calculated in (b) is located directly above. and instead draw light and dark boundary line (5), to continuously change as a whole night of the written heritage fill in (d) (4). (G) Ascension, declination, and 1 for planets such as the Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn, calculated in (a)
Stars such as iso-stars, 2nd-class stars, some 3rd-class stars, major nebulae and star clusters in right ascension and declination, and their celestial bodies are mapped on the world map
The positions (sun: 6, moon: 7) directly above each are shown as changing with time. (C) Each time the calendar time is calculated in (a), the date and time at that time, the right ascension and declination of the sun and the moon are displayed on the sea part of the world map (2) and displayed together. The times (8) of several major cities in the world are displayed in the margins of the screen (1).