DE3412777A1 - Pocket computer with direction indicator to Mecca - Google Patents

Abstract

A direction indicator to Mecca, consisting of a compass of known type which is installed in an electronic device, preferably a pocket computer, the direction to Mecca and also the respective distance to Mecca being indicated in an unambiguous manner in dependence on the location of the user. It is furthermore possible also to specify the distance and direction to any other destination. If, in addition to the location coordinates, the date is entered, the location-related sunrise and sunset times and/or prayer times can be specified.

Description

Name: calculator with

Direction indicator to Mecca Description: The invention relates to a direction indicator to Mecca, with a compass of known type in an electronic one Device, preferably a calculator or a clock.

A Mecca compass is known, consisting of a rotatable Liquid can containing a magnetic needle and a Mecca arrow. On the outer edge there is a scale with the names of various capitals. By setting the respective capital, the angle and thus also the direction known to the geodesists to Mecca. The disadvantage of this Mecca compass is the high one Price for such a device, the only small possible number of capitals, which for geometric reasons must be attached to the outer edge and the remaining inaccuracy in determining direction when the user is far away from any capital cities. The geodetic distance can also to Mecca with this device will not appear.

The invention is based on the object of a direction indicator to create to Mecca of the type mentioned, depending on the arbitrary Location of the user in a unique way the direction to Mecca, as well as the respective distance to Mecca should be displayed.

According to the invention this is achieved in that by entering the Coordinates of the location, for example by specifying the associated longitude and latitude or by entering the respective place names, using symbols or numbers, the calculation of geodesics between location and Mecca and the corresponding angle between the geodesics pointing to the North Pole and the calculated geodesics is shown on a display and thus the direction to Mecca is clear is determined and at the same time the shortest distance to Mecca is displayed.

Furthermore, it is conceivable and possible, including the distance and direction to any destination. Used in addition to the location coordinates Entered the date, the specification of the location-related sunrise and Sunset times and / or prayer times take place. The device can also be used as a control device serve for a storage unit such as a cassette recorder, so that in addition special texts, such as Koran suras, can be called up.

The invention will now be based on Figure 1 in its structure and in its Function are explained in more detail.

In Fig. 1, 1 denotes an electronic pocket calculator, which has a compass 9 with magnetic needle 10 and angular graduation 11 in its housing contains. With 2 one of the commonly used keyboards is to be referred to will. The display of the results, such as angle and distance information or any other arithmetic operations and / or the data to be entered and entered takes place preferably on a display 8.

Determining the direction to Mecca and the associated distance can be done as follows: After switching on the device Via the switch 15, the location of the user is entered via the buttons 4, 5. This is done by specifying the respective longitude and latitude. Here is pay special attention to that between northern and southern latitudes and eastern and western longitudes must be distinguished. In the input this is indicated by adding a sign to the location coordinates. To pressing key 4 is used to enter the signed latitude. Then key 5 is pressed and the associated longitude entered. Will now the button 3 is pressed, the angle 12 between which is shown on the display 8 Geodesics pointing to the North Pole and the calculated geodesics to Mecca and the distance after Mecca 13 indicated. The device must now be turned until the graduation 11 the magnetic needle 10 of the built-in compass 9, to the value of the calculated Angle shows. In Fig. 1 the direction indicator is oriented towards Mecca. the Geodesic to Mecca appears here as an example at an angle of 30 degrees, the Distance to Mecca is 3,000 km. The direction can be highlighted through a special lettering - or as indicated here - by a special shape 14 take place.

Using the buttons 6, 7 the coordinates of a can be specified as desired Destination can be entered. By.

Pressing the button 3 can on the display 8 the shortest Distance between location and destination and the associated direction can be read off.

The key 16 is used to enter the date. After pressing 3, in The location-related Sunrise and sunset times or even the prayer times are displayed will.

Of course, the other functions of the here remain exemplary used calculator unaffected. It is also conceivable and possible for such a To incorporate the system into an electronic watch or other electronic device.

The one used to determine the direction and distance between the location and Mecca and / or destination necessary mathematical operations can be both program in terms of software as well as hardware through mask programming.

Claims (4)

Description: Pocket calculator with direction indicator according to Mecca patent claims 1. Directional indicator to Mecca, with a compass of known type in an electronic one Device, preferably a pocket calculator or a clock, is installed, d u r c h g e k e n n n z e i c h n e that by entering the coordinates the location, for example by specifying the associated longitude and latitude or by entering the respective place names, using symbols or numbers, the calculation of geodesics between location and Mecca and the corresponding angle between the geodesics pointing to the North Pole and the calculated geodesics on a display comes to the display and thus the direction to Mecca is clearly determined and at the same time the shortest distance to Mecca is displayed. 2. Direction indicator according to claim 1, d a d u r c h g e k e n n z E i c h e t that after entering the location, an additional destination of your choice can be entered and after calculating the geodesics between location and destination the corresponding angle between the geodesic pointing to the North Pole and the calculated one Geodesics comes to the display and thus clearly determines the direction to the destination and at the same time the shortest distance to the destination is displayed. 3. Direction indicator according to claim 1, 2, d a d u r c h g e k e n n show that in addition to the location coordinates, the date and time is entered and thus, depending on the location, the indication of the sunrise and sunset times and / or prayer times takes place 4. Direction indicator according to claims 1 to 3, d ad u r c h e k e n n n z e i c h n e t that the device used as a control device for a storage unit such as a cassette recorder and in particular additional texts, such as Koran suras, can be called up can.