Alibaba Group Holding Limited

Zhejiang University

Ke Wu

Yang Yu

Yunge Hou

Yadong Huang

Chunhou Luo

Xiaolong Yan

Tianhang Zhang

Xun Zhang

Kaijie Wu

Mingjian Yin

Qimeng Guo

The present disclosure provides an experiment platform for simulating fire in an underground traffic conversion channel, including: a model body configured to simulate fire in the an underground traffic conversion channel; a burner connected to the model body and configured to generate smoke; and a smoke imaging system including laser sheet light sources and image recording devices configured to record smoke distribution images. The laser sheet light sources are in the model body, and plane laser light emitted by the laser sheet light sources is parallel to a flow direction of the smoke. The image recording devices are in one-to-one correspondence to the laser sheet light sources and are arranged outside an observation window of the model body. One laser sheet light source and one image recording device corresponding thereto each have a filter configured to filter out laser light of a same wavelength.

Experiment platform for simulating fire in underground traffic conversion channel

Methods, apparatuses and systems of payment verification are disclosed. A method includes receiving a request for connecting to a receiver access point (AP) from a terminal of a payer to be verified and geographical location information of the receiver AP, verifying whether account information included in the request matches with pre-stored payment account information; returning a verification result to the receiver AP; receiving a payer terminal geographical location information verification request from a payment server if the verification result indicates a match; verifying geographical location information of the terminal of the payer to be verified based on the geographical location information of the receiver AP; and returning a verification result of the payer terminal geographical location information verification request to the payment server. The method increases the security of a payment process and prevents a legitimate user from suffering financial losses and unnecessary troubles.

Payment verification method, apparatus and system

Growing community of inventors

Hangzhou, China

Ke Wu