Beijing Qihoo Technology Company Limited

National Institute of Clean-and-Low-Carbon Energy

Shanghai Tianma Micro-Electronics Co., Ltd.

Zttce Hydrogen Co.,ltd

Kang Yang

Feng Zhang

Zhuo Chen

Jun Ma

Tianyi Wu

Hai Tang

Qiang Guo

Zhuang Xu

Guangli He

Yujian Fan

A hydrogen fueling control device and method comprising step S100, obtaining initial parameters of a vehicle-mounted hydrogen reservoir, wherein the initial parameters comprise volume, initial hydrogen pressure, and initial ambient temperature of the vehicle-mounted hydrogen reservoir; step S200, computing a fueling rate and a target pressure for hydrogen fueling according to the initial parameters, wherein the computed fueling rate and target pressure cause the temperature of hydrogen during a hydrogen fueling process to be within a preset safe range; and step S300, controlling a hydrogen fueling station to fuel hydrogen to the vehicle-mounted hydrogen reservoir at the computed fueling rate to the computed target pressure. The control method controls a fueling process by obtaining a fueling rate and a target pressure by means of initial parameters of a vehicle-mounted hydrogen reservoir measured by a hydrogen fueling station, without requiring the real-time communication between the hydrogen fueling station and a vehicle.

Hydrogen fueling control device and method

Provided are a method and device for feature extraction. The method comprises: acquiring a batch of black sample files and white sample files from an application layer of a smart terminal operating system; parsing each file, acquiring information structure of all functions contained in each file, and computing a checksum for each function; determining whether or not the files contain the functions corresponding to the checksums, thus compiling statistics on the number of occurrences of each function in the black sample files and the white sample files; and, extracting a black sample feature on the basis of functions occurring only in the black sample files and not occurring in the white sample files, or extracting a white sample feature on a similar basis.

Method and device for feature extraction

The present invention discloses a method and device for detecting malicious code in an intelligent terminal. The method comprises: acquiring a virtual machine executable file of an application from an application layer of an intelligent terminal operating system; decompiling the virtual machine executable file to obtain a decompiled function information structure; parsing the decompiled function information structure to extract a function calling sequence in the decompiled function information structure; matching the function calling sequence using a preset malicious code feature library; if matching succeeds, determining that the virtual machine executable file of the application contains malicious code. By applying the solution of the present invention, through a virtual machine executable file of the application, it may be analyzed and determined whether the application comprises malicious code, such that a tampered application program or a malicious software may be detected and removed, thereby protecting security of the intelligent terminal.

Method and device for detecting malicious code in an intelligent terminal

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Beijing, China

Kang Yang