Train interior monitoring system and train interior monitoring method

A train interior monitoring system comprising:

• an on-board memory to store, as image information, video data and parameter information, the video data obtained by shooting an interior of a train using a surveillance camera, the parameter information representing a situation of obtaining the video data by shooting;
• on-board control circuitry to control operation of a device installed on the train;
• on-board display provide a display under control of the on-board control-unit circuitry;
• on-board communication circuitry to send, under control of the on-board control circuitry, the image information stored in the on-board memory to a ground communication circuitry when the train is in a stoppage state;
• the ground communication circuitry to receive the image information sent from the on-board communication circuitry;
• and
• video analysis circuitry to determine whether there is a left-behind article on the train using the image information received by the ground communication circuitry, wherein
• when the video analysis circuitry detects presence of the left-behind article, the video analysis circuitry generates a left-behind article notification indicating that there is the left-behind article,
• the ground communication circuitry sends the left-behind article notification to the on-board communication circuitry,
• the on-board communication circuitry receives the left-behind article notification, and
• the on-board display displays, under control of the on-board control circuitry, a content of the left-behind article notification received by the on-board communication circuitry.