36results about How to "Avoid Short Board Effect" patented technology

The invention provides a battery pack and a vehicle. A battery cell group (4) is formed in the battery pack (100), the battery cell group (4) comprises a plurality of battery cells, the battery cellscomprise a first battery cell (A) and a second battery cell (B), the first battery cell (A) has better cold resistance than the second battery cell (B), and the arrangement positions of the first battery cell (A) and the second battery cell (B) depend on the heat dissipation capacity in the battery pack (100).

The present disclosure relates to a fraud-related data sharing method, system and medium. The method includes: step S1, receiving in parallel the fraud-related data uploaded by the first user via multiple nodes in real time; step S2, analyzing the fraud-related data, and performing an analysis on the fraud-related data based on the metadata of the fraud-related data Store; step S3, receive the query request of the second user in parallel in real time via the multiple nodes, and find the fraud-related data corresponding to the query request based on the query request; and step S4, according to the query request corresponding to the Metadata of fraudulent data, credit rating of the second user, and send fraudulent data meeting predetermined conditions to the second user; wherein, both the first user and the second user are authenticated users, and the The metadata includes the privacy level and encryption level of the fraud-related data, and the query request includes the identity information of the second user.

A system and method for avoiding the short board effect of a battery pack. The battery pack includes a plurality of electrically connected single cells. The avoiding system includes a main control module, an information collection module, a bidirectional DC conversion module and a power supply module. The power module provides DC signals, and the information collection module collects the parameter information of the single battery and feeds it back to the main control module. After analyzing the parameter information, the main control module determines the short-board battery. Output the first control signal, and output the second control signal when the battery pack is in the discharge state and the short-board battery has been fully discharged; the bidirectional DC conversion module discharges the short-board battery when receiving the first control signal, and when receiving the second control Charge the short-board battery while signaling. The circumvention system controls the bidirectional DC conversion module to charge and discharge the short-board battery accordingly through the main control module, so that it does not affect the overall charge and discharge of the battery pack, and improves the endurance of the battery pack.

The invention provides non-overlapping block and frequency band equivalent fusion combined watermark embedding and extracting methods. The initial values and parameters of a watermark encryption link and a watermark embedding link are generated through the SHA-1 value of a cover image and a secret key given by a user, chaotic mapping is driven to generate a 2-value pseudorandom matrix to encrypt a 2-value watermark and generate random coordinate positions of non-overlapping blocks for an embedded carrier image, 1-level wavelet coefficient Pyramid decomposition is carried out on each random non-overlapping block, frequency band coefficients HL1 and LH1 are fused in an equal weighed manner to form a fusion coefficient, and the quantified value of the fusion coefficient is adjusted to embed a watermark. Watermark embedding and extracting strategies can be disclosed completely; and compared with a traditional disclosed sensitive watermark, the methods of the invention avoid a cast effect caused by that different levels of wavelet coefficients are fused, prevent twice adjustment for watermark extraction via an isolated point filtering strategy, but ensure the sufficiently-high embedded safety level.