Intelligent air curtain system for buses based on computer vision technology

An intelligent air curtain system for buses based on computer vision technology, comprising:

• a data collection system, an information processing system, a terminal control system, and a terminal broadcast system;
• wherein the data collection system is configured to collect real-time information comprising front door opening-closing information of a bus, passenger video information in a front door area of the bus, and information of a return air volume of a return air box of an air curtain;
• the data collection system is further configured to transmit the real-time information to the information processing system;
• and the passenger video information comprises passenger position information and passenger posture information;
• the information processing system comprises an object detection part, a safety judgment part, a return air volume monitoring part, a posture judgment part, and an information calculation part;
• the object detection part is configured to detect the passenger position information in the front door area of the bus in the passenger video information and transmit the passenger position information to the safety judgment part;
• the safety judgment part is configured to receive the front door opening-closing information, receive the passenger position information transmitted by the object detection part, determine safety state information of a driver of the bus based on the front door opening-closing information and the passenger position information, and transmit the safety state information comprising a safe state and a dangerous state to the terminal control system;
• the return air volume monitoring part is configured to receive the information of the return air volume transmitted by an air volume sensor in the return air box, monitor a value change of the return air volume in real-time, mark the return air volume as correction event information when the return air volume is not in a preset threshold range, and transmit the correction event information to the terminal control system;
• the posture judgment part is configured to determine the passenger posture information indicating that a passenger in the front door area does not wear a mask or does not wear the mask properly in the passenger video information, and the posture judgment part is further configured to mark the passenger posture information as reminding event information and transmit the reminding event information to the terminal broadcast system;
• and the information calculation part is configured to calculate a facial skin temperature of the passenger in the front door area, mark the facial skin temperature as warning event information when the facial skin temperature is greater than or equal to a preset value, and transmit the warning event information to the terminal broadcast system;
• the terminal control system comprises an air curtain opening-closing judgment part and a supply air angle adjustment part;
• the air curtain opening-closing judgment part is configured to receive the safe state or the dangerous state transmitted by the information processing system, and turn off or turn on the air curtain;
• and the supply air angle adjustment part is configured to receive the correction event information transmitted by the information processing and adjust a supply air angle of the air curtain based on the correction event information;
• and
• the terminal broadcast system is configured to receive the reminding event information and the warning event information transmitted by the information processing system, and perform broadcasting based on the reminding event information and the warning event information.