DUAL COLOR TEMPERATURE VEHICLE LAMP ABLE TO JUDGE DRIVING ENVIRONMENT BASED ON INVISIBLE LIGHT AND JUDGING METHOD
3 Assignments
0 Petitions
Accused Products
Abstract
A dual color temperature vehicle lamp able to judge a driving environment based on invisible light includes a vehicle lamp body in the form of an LED. The vehicle lamp body includes a light emitting unit capable of performing a conversion of at least two kinds of color temperature light. A front end face of the vehicle lamp body is provided with at least one invisible light emitting source, at least one reflected light receiver, and a partition plate between the invisible light emitting source and the reflected light receiver. The invisible light emitting source is embedded in a recess at a front end of the vehicle lamp body. The vehicle lamp body includes a preamplifier circuit connected with the reflected light receiver, an MCU connected with the preamplifier circuit, and a wireless transceiver module connected with the MCU therein.
3 Citations
10 Claims
-
1. (canceled)
-
2. (canceled)
-
3. (canceled)
-
4. (canceled)
-
5. (canceled)
-
6. (canceled)
-
7. (canceled)
-
8. A method for regulating a color temperature of a vehicle lamp based on invisible light, comprising the following steps of:
-
step 1;
in a working state when the vehicle lamp is turned on, an invisible light emitting source to emitting light having a wavelength of less than 400 nm or greater than 760 nm, the invisible light carrying a 38 KHZ signal;step 2;
in the working state when the vehicle lamp is turned on, a reflected light receiver receiving ambient light and converting a received signal of the ambient light into an electrical signal to amplify the signal, with 5V as a maximum value, the amplified signal being proceeded to identify a target light signal carrying the 38 KHZ signal and calculate a voltage intensity value of the received target light signal;step 3;
a processing chip making a comparison for the voltage intensity value obtained in the step 2, wherein when the voltage intensity value is less than 1V, the value of the electrical signal is ignored;
when the voltage intensity value is 1-2V, it is judged that the weather is rainy or foggy and the vehicle lamp is controlled to regulate its color temperature;
when the voltage intensity value is greater than 2V, the value of the electrical signal is ignored; andstep 4;
the processing chip getting a control judgment through the step 3 and converting the control judgment into a control signal to the vehicle lamp and controlling a working color temperature of the vehicle lamp. - View Dependent Claims (9, 10)
-
Specification