Abstract: The disclosed technology provides solutions for improving perception systems and in particular for improving perception systems of autonomous vehicles (AVs). A process of the disclosed technology can provide solutions for improving vehicle blinker detection/identification. In some approaches, blinker detection/identification can include steps for receiving a set of image frames, identifying image areas in the set of image frames, corresponding with a light source of the vehicle, and determining a blinker state associated with the vehicle. Systems and machine-readable media are also provided.

Abstract: The disclosure discloses a controllable wave-absorbing metamaterial including a substrate and a metamaterial unit array layer. Each conductive geometric unit includes a first hollow structure, second hollow structures, and conductive geometric structures. The second hollow structures are respectively extended from four vertices of the first hollow structure, and the conductive geometric structure is disposed between each two adjacent second hollow structures. The first end of the second hollow structure is provided with a varactor diode connected to the conductive geometric structures at both sides, the second end of the second hollow structure is provided with a fixed capacitor and a fixed resistor; the fixed capacitor is connected to the conductive geometric structure at one side, and the fixed resistor is connected to the conductive geometric structure at the other side. Therefore, active adjustment on a wave-absorption frequency band can be implemented, and power consumption is very low.

Abstract: The disclosure discloses a controllable wave-absorbing metamaterial including a substrate and a metamaterial unit array layer. Each conductive geometric unit includes a first hollow structure, second hollow structures, and conductive geometric structures. The second hollow structures are respectively extended from four vertices of the first hollow structure, and the conductive geometric structure is disposed between each two adjacent second hollow structures. The first end of the second hollow structure is provided with a varactor diode connected to the conductive geometric structures at both sides, the second end of the second hollow structure is provided with a fixed capacitor and a fixed resistor; the fixed capacitor is connected to the conductive geometric structure at one side, and the fixed resistor is connected to the conductive geometric structure at the other side. Therefore, active adjustment on a wave-absorption frequency band can be implemented, and power consumption is very low.

Abstract: The invention discloses a smoke detection method, which comprises the steps of: adjusting a detection period of a smoke alarm to be a rapid detection period when a smoke density is detected to meet a set density threshold; calculating a ratio of an electrical signal increment caused by a first transmitted signal to an electrical signal increment caused by a second transmitted signal; and increasing a smoke alarm threshold when smoke is judged not to be caused by a fire hazard based on the ratio. In the invention, different types of smoke can be identified and different alarm modes can be selected to solve the problem of a false alarm.

Abstract: Embodiments of the present invention disclose a heat dissipation assembly including: a cage, a TEC assembly, a mounting kit, an elastic carrier, and a heat pipe, where a window is provided in a side face of the cage, the TEC assembly is located on an outer side of the cage, and a cold side of the TEC assembly passes through the window and thermally communicates with the heat emitting device in the cage; the mounting kit is configured to mount the TEC assembly and enable the TEC assembly to move in a direction leaving or approaching the heat emitting device; and a heat absorption portion of the heat pipe is mounted on the elastic carrier, and the heat absorption portion that is of the heat pipe and that is mounted on the elastic carrier thermally communicates with a hot side of the TEC assembly.

Abstract: Embodiments of the present invention disclose a heat dissipation assembly including: a cage, a TEC assembly, a mounting kit, an elastic carrier, and a heat pipe, where a window is provided in a side face of the cage, the TEC assembly is located on an outer side of the cage, and a cold side of the TEC assembly passes through the window and thermally communicates with the heat emitting device in the cage; the mounting kit is configured to mount the TEC assembly and enable the TEC assembly to move in a direction leaving or approaching the heat emitting device; and a heat absorption portion of the heat pipe is mounted on the elastic carrier, and the heat absorption portion that is of the heat pipe and that is mounted on the elastic carrier thermally communicates with a hot side of the TEC assembly.