Abstract: A data acquisition and reconstruction method and a data acquisition and reconstruction system for human body three-dimensional modeling based on a single mobile phone. In the aspect of data acquisition, the present application only uses a single smart phone, and uses augmented reality technology to guide users to collect high-quality video data input for a reconstruction algorithm, so as to ensure that the subsequent human body reconstruction algorithm can stably obtain a high-quality three-dimensional human body model. In the aspect of a reconstruction algorithm, the present application designs a deformable implicit neural radiance field. The use of an implicit spatial deformation field estimation model solves the problem that the subject has small motion in the process of collecting data with a single mobile phone; the implicit signed distance field is used to represent human geometry, which has rich expressive ability and improves the accuracy of three-dimensional human model reconstruction.

Abstract: In one embodiment, a process is performed during controlling Autonomous Driving Vehicle (ADV). A confidence level associated with a sensed obstacle is determined. If the confidence level is below a confidence threshold, and a distance between the ADV and a potential point of contact with the sensed obstacle is below a distance threshold, then performance of a driving decision is delayed. Otherwise, the driving decision is performed to reduce risk of contact with the sensed obstacle.

Abstract: An LED driving circuit, a light tube and an illumination device are provided. The LED driving circuit includes a first AC input end, a second AC input end, a driving module, a first protection unit, a first DC output end and a second DC output end. The first protection unit includes a voltage detection subunit and an abnormality cutoff subunit, and the voltage detection subunit is connected in parallel between two corresponding voltage nodes of the driving module, and the voltage detection subunit is configured to detect a voltage value of the driving module; and the abnormality cutoff subunit is connected in series between the second input end of the driving module and the second AC input end; the first protection unit is configured to cut off a circuit of the driving module when a voltage abnormality of the driving module is detected.

Abstract: A transient current planning method for an ultra-high-speed permanent magnet synchronous motor for improving speed regulation response capabilities is provided. A transient current planning module uses a voltage model considering transient current changes to calculate current instruction values of an ultra-high-speed permanent magnet synchronous motor under MTPA control, general flux-weakening control, and MTPV control; a mode switching condition judgment subsystem judges whether a control mode is MTPA control or general flux-weakening control, or MTPV control, and sends d- and q-axis current instruction values in the corresponding control mode to a voltage decoupling control module; and the voltage decoupling control module calculates d- and q-axis voltage instruction values for controlling the motor, so as to realize control over the ultra-high-speed permanent magnet synchronous motor.

Abstract: A transient current planning method for an ultra-high-speed permanent magnet synchronous motor for improving speed regulation response capabilities is provided. A transient current planning module uses a voltage model considering transient current changes to calculate current instruction values of an ultra-high-speed permanent magnet synchronous motor under MTPA control, general flux-weakening control, and MTPV control; a mode switching condition judgment subsystem judges whether a control mode is MTPA control or general flux-weakening control, or MTPV control, and sends d- and q-axis current instruction values in the corresponding control mode to a voltage decoupling control module; and the voltage decoupling control module calculates d- and q-axis voltage instruction values for controlling the motor, so as to realize control over the ultra-high-speed permanent magnet synchronous motor.

Abstract: An LED driving circuit, a light tube and an illumination device are provided. The LED driving circuit includes a first AC input end, a second AC input end, a driving module, a first protection unit, a first DC output end and a second DC output end. The first protection unit includes a voltage detection subunit and an abnormality cutoff subunit, and the voltage detection subunit is connected in parallel between two corresponding voltage nodes of the driving module, and the voltage detection subunit is configured to detect a voltage value of the driving module; and the abnormality cutoff subunit is connected in series between the second input end of the driving module and the second AC input end; the first protection unit is configured to cut off a circuit of the driving module when a voltage abnormality of the driving module is detected.

Abstract: Provided are an LED driving circuit and a tube lamp. A grounding terminal of a rectifying unit of the LED driving circuit is electrically connected to a first ground wire, and an input terminal of an impedance detection and protection unit is electrically connected to a second input terminal of a first filtering unit. The grounding terminal is electrically connected to the first ground wire. The impedance detection and protection unit is configured to detect an impedance between the second input terminal of the first filtering unit and the first ground wire, so as to control the second input terminal of the first filtering unit to connect to or disconnect from the first ground wire according to a magnitude of the detected impedance.