Crowdfunding is translated from the foreign word crowdfunding, i.e., mass funding or crowd funding, which refers to the mode of raising funds for projects from netizens in the form of group purchasing + pre-purchasing. Relative to the traditional financing methods, crowdfunding is more open, providing unlimited possibilities for more small business or creative people, crowdfunding a sum of money through the carboot for the purchase of the corresponding used car, used cars belong to all investors, and then sell the used car to earn the price difference for dividends. The asset behind this profit model is no longer a debt, but the vehicle property right income, the source of income is no longer interest, but the business dividends. Users are no longer just investors, but have become partners.

Data (big data), refers to a collection of data that cannot be captured, managed and processed within a certain timeframe by conventional software tools, is a massive, high growth rate and diverse information asset that requires new processing modes for stronger decision-making, insight discovery and process optimization capabilities. [1]?

In The Age of Big Data by Viktor Mayer Sch?nberg and Kenneth Kukier [2]? in Big Data refers to the use of all data for analysis and processing without using shortcuts like random analysis (sampling). The 5V characteristics of Big Data (proposed by IBM): Volume (large volume), Velocity (high speed), Variety (diverse), Value (low value density), Veracity (authenticity).