Abstract: A system for measuring surface deflection of a road includes a first stereo line-scan camera pair on a sensor rig and for capturing a first set of 3D images of a road surface; a second stereo line-scan camera pair on the sensor rig and for capturing a second set of 3D images of the road surface; at least one digital electro-optical (EO) camera rigidly attached to the sensor rig; an inertial measurement unit (IMU) detecting inertial forces acting upon the sensor rig; and a processor compensating for acceleration and vibration effects upon the sensor rig; and calculating the surface deflection of the road based on the first and second sets of 3D images. The processor utilizes imagery from the EO camera and inertial measurements from the IMU to produce 2D mosaics and 3D reconstructions of the road surface from the first and second sets of 3D images.

Abstract: The present disclosure relates to a voltage regulation apparatus, a chip and an electronic device. The apparatus comprises: a voltage output module; a first voltage generation module; a second voltage generation module; a voltage regulation module used for regulating a first comparison voltage according to an input voltage so that the first voltage generation module outputs a regulated first comparison voltage, or regulating a second comparison voltage according to the input voltage so that the second voltage generation module outputs a regulated second comparison voltage; and a control signal generation module used for outputting a control signal according to the regulated first comparison voltage or the regulated second comparison voltage, so that the voltage output module obtains an output voltage according to the control signal and the input voltage.

Abstract: The present disclosure relates to a voltage regulation apparatus, a chip and an electronic device. The apparatus comprises: a voltage output module; a first voltage generation module; a second voltage generation module; a voltage regulation module used for regulating a first comparison voltage according to an input voltage so that the first voltage generation module outputs a regulated first comparison voltage, or regulating a second comparison voltage according to the input voltage so that the second voltage generation module outputs a regulated second comparison voltage; and a control signal generation module used for outputting a control signal according to the regulated first comparison voltage or the regulated second comparison voltage, so that the voltage output module obtains an output voltage according to the control signal and the input voltage.

Abstract: The present invention provides an overcurrent detection circuit, an overcurrent detection method, a load circuit, and a portable device. The overcurrent detection circuit comprises: a first overcurrent detection sub-circuit and a second overcurrent detection sub-circuit; wherein: the first overcurrent detection sub-circuit is configured to perform overcurrent detection for a switch circuit when a voltage of an output terminal of the switch circuit is greater than or equal to a preset threshold; and the second overcurrent detection sub-circuit is configured to perform overcurrent detection for the switch circuit when the voltage of the output terminal of the switch circuit is less than the preset threshold.

Abstract: This application discusses, among other things, zero current detection. In an example, a circuit for zero current detection can include a compensating circuit and a detecting circuit. The compensating circuit can be configured to feed back a compensating voltage to the detecting circuit according to an output voltage of a DC-DC converting circuit. The detecting circuit can be configured to dynamically adjust an intentional offset voltage according to the compensating voltage, and to perform zero current detection of the DC-DC converting circuit according to the adjusted Voffset.

Abstract: This application discusses, among other things, zero current detection. In an example, a circuit for zero current detection can include a compensating circuit and a detecting circuit. The compensating circuit can be configured to feed back a compensating voltage to the detecting circuit according to an output voltage of a DC-DC converting circuit. The detecting circuit can be configured to dynamically adjust an intentional offset voltage according to the compensating voltage, and to perform zero current detection of the DC-DC converting circuit according to the adjusted Voffset.

Abstract: The present invention provides an overcurrent detection circuit, an overcurrent detection method, a load circuit, and a portable device. The overcurrent detection circuit comprises: a first overcurrent detection sub-circuit and a second overcurrent detection sub-circuit; wherein: the first overcurrent detection sub-circuit is configured to perform overcurrent detection for a switch circuit when a voltage of an output terminal of the switch circuit is greater than or equal to a preset threshold; and the second overcurrent detection sub-circuit is configured to perform overcurrent detection for the switch circuit when the voltage of the output terminal of the switch circuit is less than the preset threshold.

Abstract: This application discusses, among other things, zero current detection. In an example, a circuit for zero current detection can include a compensating circuit and a detecting circuit. The compensating circuit can be configured to feed back a compensating voltage to the detecting circuit according to an output voltage of a DC-DC converting circuit. The detecting circuit can be configured to dynamically adjust an intentional offset voltage according to the compensating voltage, and to perform zero current detection of the DC-DC converting circuit according to the adjusted Voffset.