Camera system with multiple camera

A camera system, comprising:

• a processor having a data receiving terminal and a camera trigger terminal;
• a first camera having a trigger input terminal, a trigger output terminal, and a data output terminal, wherein the trigger input terminal is electrically connected to the camera trigger terminal of the processor;
• a second camera having a trigger input terminal and a data output terminal, wherein the trigger input terminal of the second camera is electrically connected to the trigger output terminal of the first camera;
• and
• a data bus electrically connected to the data receiving terminal of the processor, the data output terminal of the first camera, and the data output terminal of the second camera,
• wherein the processor transmits a first trigger signal to the first camera through the camera trigger terminal to enable the first camera outputting first data to the processor through the data bus,
• wherein the first camera transmits a second trigger signal to the second camera through the trigger output terminal of the first camera to enable the second camera outputting second data to the processor through the data bus,
• wherein the first camera starts to sense a first image after receiving the first trigger signal, and the first data comprises the first image,
• wherein the first camera transmits the second trigger signal to the second camera during a first period of the first camera outputting the first data to the processor through the data bus,
• wherein the data output terminal of the first camera is set to be in a high impedance state after the first camera outputs the first data to the processor.