| 摘要 |
PROBLEM TO BE SOLVED: To largely improve a utilization value of a car navigation system by using an on-vehicle electronic equipment having a temperature sensor used as operational information of a car and information to set an environment in the car in combination with the car navigation system. SOLUTION: A radio wave of a broadcasting satellite SAT is received by a receiving antenna CAN arranged on a car CAR, and is displayed, on a display unit ND of car navigation through a receiver RC and a signal converter CN. An output terminal of a signal processing circuit TA is connected to a controller of a main body of the navigation. The signal processing circuit TA in the car inversely converts electrically converted temperature information of a temperature sensor TS, and detects it as a car outside temperature. The car outside temperature detected by the signal processing circuit TA is processed by a microprocessor of a car navigation main body, and is accumulated in a memory. The microprocessor of the car navigation main body takes out car outside temperature information from the memory, and uses it as information of software. |
