Outdoor computer
First Claim
1. A method for implementing a weather alarm in an outdoor computer (10-14), in which method atmospheric-pressure data (2) is defined repeatedly, altitude data (1) is defined repeatedly and essentially simultaneously with the atmospheric-pressure data (2), with the aid of a satellite positioning system, and both measured variables are converted into the same measurement unit, either pressure or altitude, characterized in that the difference (Δ
-
1) between the converted variables (1 and 2) is determined and is stored as a reference value (Δ
1), the difference (Δ
2-Δ
5) between the converted variables (1, 2) is repeatedly monitored, and when the difference (Δ
-Δ
5) changes by more than a preset limit-value relative to the reference value (Δ
1), a weather alarm is given.
3 Assignments
0 Petitions
Accused Products
Abstract
This publication discloses a method and apparatus for implementing a weather alarm in an outdoor computer (10-14). According to the method, atmospheric-pressure data (2) is defined repeatedly, altitude data (1) is defined repeatedly and essentially simultaneously with the atmospheric-pressure data (2), with the aid of a satellite positioning system, and both measured variables are converted into the same measurement unit, either pressure or altitude. According to the invention, the difference (Δ1) between the converted variables (1 and 2) is determined and is stored as a reference value (Δ1), the difference (Δ2-Δ5) between the converted variables (1, 2) is repeatedly monitored, and when the difference (Δ2-Δ5) changes by more than a preset limit-value relative to the reference value (Δ1), a weather alarm is given.
11 Citations
9 Claims
-
1. A method for implementing a weather alarm in an outdoor computer (10-14), in which method
atmospheric-pressure data (2) is defined repeatedly, altitude data (1) is defined repeatedly and essentially simultaneously with the atmospheric-pressure data (2), with the aid of a satellite positioning system, and both measured variables are converted into the same measurement unit, either pressure or altitude, characterized in that the difference (Δ -
1) between the converted variables (1 and 2) is determined and is stored as a reference value (Δ
1),the difference (Δ
2-Δ
5) between the converted variables (1, 2) is repeatedly monitored, andwhen the difference (Δ
-Δ
5) changes by more than a preset limit-value relative to the reference value (Δ
1), a weather alarm is given. - View Dependent Claims (2, 3, 4, 5)
-
1) between the converted variables (1 and 2) is determined and is stored as a reference value (Δ
-
6. An apparatus for implementing a weather alarm in an outdoor computer (10-14), which apparatus includes
measuring means (11) for repeatedly determining the atmospheric-pressure data (2), means (10) for determining the altitude data (1) repeatedly and essentially simultaneously with the atmospheric-pressure data (2), with the aid of a satellite positioning system, and conversion means (12) for converting both measured variables into the same measurement unit, either pressure or altitude, characterized in that the apparatus includes means for determining the difference (Δ -
1) between the converted variables (1 and 2) and
storing means (12) for storing the difference as a reference value (Δ
1),monitoring means (12) for monitoring the difference (Δ
2-Δ
5) of the converted variables, andalarm means (13, 14) for giving an alarm if the difference (Δ
2-Δ
5) changes by more than the preset limit-value relative to the reference value (Δ
1). - View Dependent Claims (7, 8, 9)
-
1) between the converted variables (1 and 2) and
Specification