Abstract: A device for real-time detection of pipeline gas leakage and leakage prevention includes a gas pipeline, wherein a gas detector is arranged at an outer part of the gas pipeline, a telescopic cylinder is also electrically connected to an outer side of the gas detector, a plurality of three-way elliptical pipes are mounted at a middle segment part of the gas pipeline, a limiting cylinder is fixedly mounted at a bottom port of each three-way elliptical pipe, a separating mechanism is arranged between each limiting cylinder and the three-way elliptical pipe, and a pneumatic mechanism is arranged at a bottom of the limiting cylinder. After detecting gas leakage, the gas detector immediately triggers the telescopic cylinder through an electrical signal, and the pneumatic mechanism triggers the separating mechanism to separate and seal the three-way elliptical pipe when being driven by the telescopic cylinder.

Abstract: A device for real-time detection of pipeline gas leakage and leakage prevention includes a gas pipeline, wherein a gas detector is arranged at an outer part of the gas pipeline, a telescopic cylinder is also electrically connected to an outer side of the gas detector, a plurality of three-way elliptical pipes are mounted at a middle segment part of the gas pipeline, a limiting cylinder is fixedly mounted at a bottom port of each three-way elliptical pipe, a separating mechanism is arranged between each limiting cylinder and the three-way elliptical pipe, and a pneumatic mechanism is arranged at a bottom of the limiting cylinder. After detecting gas leakage, the gas detector immediately triggers the telescopic cylinder through an electrical signal, and the pneumatic mechanism triggers the separating mechanism to separate and seal the three-way elliptical pipe when being driven by the telescopic cylinder.

Abstract: Disclosure is a method for detecting the safety driving state of a driver, the method comprises the following steps: (a) detecting the current sight direction of a driver in real time and acquiring a scene image signal in a front view field of the driver when a vehicle runs; (b) processing the acquired current road scene image signal according to a visual attention calculation model to obtain the expected attention distribution of the driver under the current road scene; and (c) performing fusion analysis on the real-time detected current sight direction of the driver in the step (a) and the calculated expected attention distribution of the driver in step (b), and judging whether the current driver is in a normal driving state and whether the driver can timely make a proper response to the sudden road traffic accident.

Abstract: Disclosure is a method for detecting the safety driving state of a driver, the method comprises the following steps: (a) detecting the current sight direction of a driver in real time and acquiring a scene image signal in a front view field of the driver when a vehicle runs; (b) processing the acquired current road scene image signal according to a visual attention calculation model to obtain the expected attention distribution of the driver under the current road scene; and (c) performing fusion analysis on the real-time detected current sight direction of the driver in the step (a) and the calculated expected attention distribution of the driver in step (b), and judging whether the current driver is in a normal driving state and whether the driver can timely make a proper response to the sudden road traffic accident.