Embodiments of the disclosure relate to a flight method and apparatus for an unmanned aerial vehicle (UAV) and a UAV. The method includes: obtaining a distance between the UAV and an electronic fence; applying a virtual resistance force to the UAV if the distance is less than a preset distance threshold value; and obtaining a speed instruction according to the virtual resistance force, to adjust a flight speed of the UAV according to the speed instruction. In the embodiments of the disclosure, when a distance between a UAV and an electronic fence is less than a preset distance threshold value, a virtual resistance force is applied to the UAV, and a speed instruction is obtained according to the virtual resistance force, to adjust a flight speed of the UAV. By means of the embodiments of the disclosure, the acceleration of a UAV can be reduced. In this way, a distance by which the UAV rushes into a restricted area is reduced.

Embodiments of the disclosure relate to a flight method and apparatus for an unmanned aerial vehicle (UAV) and a UAV. The method includes: obtaining a distance between the UAV and an electronic fence; applying a virtual resistance force to the UAV if the distance is less than a preset distance threshold value; and obtaining a speed instruction according to the virtual resistance force, to adjust a flight speed of the UAV according to the speed instruction. In the embodiments of the disclosure, when a distance between a UAV and an electronic fence is less than a preset distance threshold value, a virtual resistance force is applied to the UAV, and a speed instruction is obtained according to the virtual resistance force, to adjust a flight speed of the UAV. By means of the embodiments of the disclosure, the acceleration of a UAV can be reduced. In this way, a distance by which the UAV rushes into a restricted area is reduced.

An in-vehicle display system, a traffic equipment and an image display method are disclosed. The in-vehicle display system includes an image generation device, an intermediate image receiving part and a controller. The image generation device is configured to project projection light of a first image; the intermediate image receiving part is configured to receive the projection light of the first image, so as to present the first image, and the intermediate image receiving part is further configured to have a changeable intermediate image receiving position; the controller is configured to control the intermediate image receiving position of the intermediate image receiving part at least based on a current driving speed so as to present the first image at a corresponding position.

An in-vehicle display system, a traffic equipment and an image display method are disclosed. The in-vehicle display system includes an image generation device, an intermediate image receiving part and a controller. The image generation device is configured to project projection light of a first image; the intermediate image receiving part is configured to receive the projection light of the first image, so as to present the first image, and the intermediate image receiving part is further configured to have a changeable intermediate image receiving position; the controller is configured to control the intermediate image receiving position of the intermediate image receiving part at least based on a current driving speed so as to present the first image at a corresponding position.

A work vehicle may include a load sensor, an engine, a drive train driven by the engine and a track system including at least one track. The track system is connected to the drive train. The work vehicle may further comprise a temperature sensor configured to sense a temperature and a vehicle control system configured to receive the sensed temperature and a vehicle load from the load sensor. The vehicle control system is configured to output a work speed vehicle alert based upon a combination of the temperature sensed by the temperature sensor and the vehicle load sensed by the load sensor.

A work vehicle may include a load sensor, an engine, a drive train driven by the engine and a track system including at least one track. The track system is connected to the drive train. The work vehicle may further comprise a temperature sensor configured to sense a temperature and a vehicle control system configured to receive the sensed temperature and a vehicle load from the load sensor. The vehicle control system is configured to output a work speed vehicle alert based upon a combination of the temperature sensed by the temperature sensor and the vehicle load sensed by the load sensor.

A wind turbine control apparatus, method and non-transitory computer-readable medium are disclosed. The wind turbine control apparatus comprises a generator connected to a wind turbine with a drive train. The drive train comprises a rotor, a low speed shaft, a gear box, a high speed shaft, and a controller module. The controller module is configured to obtain a maximum power within a large range of varying wind velocities by operating the rotor at a neural network determined optimal angular speed for the current wind velocity.

A wind turbine control apparatus, method and non-transitory computer-readable medium are disclosed. The wind turbine control apparatus comprises a generator connected to a wind turbine with a drive train. The drive train comprises a rotor, a low speed shaft, a gear box, a high speed shaft, and a controller module. The controller module is configured to obtain a maximum power within a large range of varying wind velocities by operating the rotor at a neural network determined optimal angular speed for the current wind velocity.

A work vehicle may include a load sensor, an engine, a drive train driven by the engine and a track system including at least one track. The track system is connected to the drive train. The work vehicle may further comprise a temperature sensor configured to sense a temperature and a vehicle control system configured to receive the sensed temperature and a vehicle load from the load sensor. The vehicle control system is configured to output a work speed vehicle alert based upon a combination of the temperature sensed by the temperature sensor and the vehicle load sensed by the load sensor.

A work vehicle may include a load sensor, an engine, a drive train driven by the engine and a track system including at least one track. The track system is connected to the drive train. The work vehicle may further comprise a temperature sensor configured to sense a temperature and a vehicle control system configured to receive the sensed temperature and a vehicle load from the load sensor. The vehicle control system is configured to output a work speed vehicle alert based upon a combination of the temperature sensed by the temperature sensor and the vehicle load sensed by the load sensor.