Automobile lamp device and method for transmitting signals through light thereof

摘要

It divides the network communication protocol for the communication between automobile into a software protocol layer (L1), a signal protocol layer and a physical protocol layer wherein the software protocol layer is used for checking coding and decoding the data required to be sent and received by a system, and the signal protocol layer is used for performing combined coding of data package signals and basic light signal on data packages produced by the software protocol layer according to the protocol agreement, and the physical protocol layer is used for converting digital signals and light signals mutually. A device comprises a light receiving apparatus arranged at the head of the automobile and a light emitting device, which collects the operating status information of automobile, performs information exchange with surrounding automobiles through digital information, arranged at the tail of the automobile.

主权项

1. An automobile lamp device comprises a head lamp arranged at the head of an automobile and a tail lamp arranged at the tail of the automobile, a lamp light receiving apparatus installed inside the head lamp; and a lamp light emitting apparatus installed inside the tail light, wherein
the lamp light emitting apparatus comprising a bus data receiver, an emitting end microcontroller, a lamp driver and lamps; the input end of said bus data receiver connects with an automobile's CAN bus, it's used to collect operating data of the automobile, and the input end of said emitting end microcontroller connects with the output end of the bus data receiver, it's used to acquire the operating data of the automobile and to check a code; the output end of said emitting end microcontroller connects with the input end of said lamp driver, it's used to generate data after code check, and the output end of said lamp driver drives and connects with the tail lamps, it's used to drive the luminance of the tail lamps; the tail lamps are used to generate light signals including the operating data of the automobile and to send them out; the lamp light receiving apparatus is composed of lens, a photosensitive module and a receiving end microcontroller, the lens is used to conduct focusing processing for the light signal received and send the light signal processed to the photosensitive module which connects with an AD port of the receiving end microcontroller, it's used to send a voltage signal converted from the light signal to the receiving end microcontroller, the output end of said receiving end microcontroller connects with the input end of the automobile controller, it's used to conduct analog-digital conversion and filtering processing for the voltage signal it receives, and to conduct output control signal to the automobile controller; the lamp light receiving apparatus and the lamp light emitting apparatus including a software protocol layer, a signal protocol layer and a physical protocol layer; the emitting end microcontroller and the receiving end microcontroller constitute the software protocol layer and the signal protocol layer; the lamp driver, the lamp, the lens and the photosensitive module constitute physical protocol layer; the software protocol layer is used for code checking and decoding for the data that needs to be sent and received, generating data package signal; the signal protocol layer is used to realize the combined coding for the key light signal and data package signal generated by the software protocol layer; the physical protocol layer is used to realize the mutual conversion between the digital signal and the optical signal.