| 摘要 |
The invention discloses the laser transponder system for disrupting speed and/or distance measuring LIDARs. The system consists of at least two laser transponders 101, 102, a microcontroller 103 and a user interface 104. The microcontroller 103 is connected to both laser transponders 101, 102, and to the user interface 104. Microcontroller 103 is analysing input from laser transponders 101, 102, and is determining their output. In case an advanced speed measuring LIDAR signal is detected the microcontroller 103 configures first laser transponder 101 as a transmitting only unit 101B and second laser transponder 102 as a receiving only unit 102B. Transmissions emanating from the transmitting only unit 101B are not received by the receiving only unit 102B. Disrupting signal periods are selected by the microcontroller 103 algorithm from its pre-stored database according to a detected LIDAR signal. Novelties of the invention are that the disrupting signal is transmitted simultaneously with synchronizing a disruption timer for the next period of a disrupting signal and that multiple disruption signal periods are timed in parallel on a given synchronization event. That way all speed measuring pulses of a LIDAR signal are disrupted even in the case of an advanced speed measuring LIDAR with a random pulse repetition rate. An additional novelty of the invention is that the laser transponders 101, 102, have a laser receiver with an adjustable gain controlled by the microcontroller 103, and that the microcontroller 103 algorithm discovers a maximum level of receiving only transponder 102B receiver sensitivity on which there is no echo triggering on transmissions emanating from the transmitting only transponder 101B. |
