Bicycle cycling safety warning system

A bicycle cycling safety warning system, comprising:

• an oncoming vehicle sensing unit, configured on a bicycle and comprising a plurality of radar components, the oncoming vehicle sensing unit provided with an oncoming vehicle signal upon activating, and the oncoming vehicle signal comprising a positional relationship between the bicycle and an adjacent vehicle, and a speed of the adjacent vehicle;
• a direction prompting unit, controlled by an independent controller, configured on the bicycle and controlled to generate a direction light signal;
• a projection warning unit, comprising at least two projection lamps facing different positions, and each of the at least two projection lamps configured to generate a projection image around the bicycle when activated;
• and
• a control unit, connected to the oncoming vehicle sensing unit, the direction prompting unit, and the projection warning unit, the control unit being in information connection to the controller for controlling the direction prompting unit to determine to activate at least one of the plurality of the radar components, the control unit operating in a first state for controlling the projection warning unit based on the oncoming vehicle signal, and a second state for controlling the projection warning unit based on the oncoming vehicle signal and the direction prompting unit, wherein the control unit determines whether the speed of the adjacent vehicle of the oncoming vehicle signal reaches a speed condition in the first state, and the control unit determines a warning mode of the projection warning unit based on the speed of the adjacent vehicle of the oncoming vehicle signal, and warning mode is one of a flicker frequency, a brightness, and an image content of the projection image,
• wherein the control unit operates in the first state when the speed condition is reached to control the projection warning unit to generate the projection image, and the control unit operates in the second state based on the sensing result of the oncoming vehicle sensing unit and the operation of the direction prompt unit to control the projection warning unit to generate the projection image, and the projection image generated by the control unit in the second state is different from the projection image generated by the control unit in the first state.