| 摘要 |
PURPOSE:To make temperature information in another spot displayable simply by calculating a temperature at a target spot and displaying it on the basis of temperature at the current position, altitude data at the current spot and other altitude data at the target spot. CONSTITUTION:A key is operated into the setting mode, and both altitude data at the current spot and the target spot are stored in a random access memory (RAM) 9. Time data or altitude data set by the key are displayed on a display part 15. In this case, both altitude data at the current spot and the target spot are displayed on the display part 15 as well. With a temperature predicted state of a predictive mode, air temperature at the mountain foot (the current spot) and prediction temperature at the mountaintop (the target spot) are displayed too. In this case, the key is operated, changing a reference mode to a predictive mode, and it is made into the temperature predicted state. A control part 1 outputs a signal (a), output of a temparature sensor 3 is converted by an analog-to-digital converter 5, securing air temperature data at the current spot, and the data are stored in the RAM 9. In succession, on the basis of the air temperature at the current spot, the air temperature of the altitude data at the target spot is operated as referring to a data table of a read-only memory (ROM) 2, and the air temperature data calculated by this operation are stored in the RAM 9 and displayed on the display part 15. |
