Radar sensor and hostless multi-probe radar system

The embodiment of the invention discloses a radar sensor and a hostless multi-probe radar system, and relates to the technical field of electronic safety detection. The radar sensor comprises a connector, an addressing circuit, a power supply voltage stabilizing circuit and a micro-control unit; the connector is provided with a PWR port, a DATA port, an ID port and a GND port; the connector is connected to the addressing circuit, and the addressing circuit is connected to the micro-control unit; and the addressing circuit is used for providing a sampling level for the micro-control unit so asto identify the position of the radar sensor. According to the radar sensor and the hostless multi-probe radar system, a plurality of combination modes of connection between the port of the connectorand the signal wire harness are used, so the radar system can achieve addressing discrimination of radar sensors in all directions, is simple in structure, convenient to install, short in developmentperiod and good in expandab