Eaton Intelligent Power Limited

Shenzhen Unnersity

Kaixin Chen

Lu Wang

Kaishun Wu

Heyi Xu

Yongzhi Huang

An offline uninterruptible power supply (UPS) is provided, including: a transformer, configured to output a utility power voltage to a load; a bidirectional converter, configured to convert alternating current from the transformer into direct current to charge a rechargeable battery, and convert direct current from the rechargeable battery into alternating current to be outputted to the transformer; and a control unit, configured to control operation of the offline UPS, where when the utility power voltage is within a normal range and the rechargeable battery is fully charged, the offline UPS enters a design of energy (DOE) mode, in the DOE mode, the transformer and the bidirectional converter are turned off, and in the DOE mode, the control unit is configured to detect a voltage of the rechargeable battery, and calculate a slope of decrease in the voltage of the rechargeable battery, and when the slope of decrease in the voltage is greater than a preset first threshold, the control unit controls the offline UPS to delete the DOE mode.

Offline uninterruptible power supplies (UPSs) and related design of energy (DOE) mode failure detection methods

An auxiliary sensing method and system based on sensory substitution includes: establishing a discrete horizontal plane included angle and a normal vector included angle in three-dimensional space as well as response functions corresponding to different discrete distances, and establishing an acoustic coding library of an object; obtaining a surrounding environmental video; obtaining object information and category of current environment; establishing a three-dimensional sound field of the object according to the image information, the object information and the three-dimensional coordinate information obtained in combination with the acoustic coding library of the object; and adjusting, for objects of different categories, the three-dimensional sound field of each object according to movement information and variations of images, and playing the three-dimensional sound field of each object in real time.

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Shenzhen, China

Kaixin Chen