Abstract: The present disclosure discloses a ranging system comprising a signal transmitter, a signal receiver, a ranging wheel, an electronic counter, an angle sensor and a data processing module integrated within a same device. The present disclosure also discloses a ranging system comprising a ranging device and a terminal device in communication with the ranging device, the ranging device comprises a signal transmitter, a signal receiver, a ranging wheel and an electronic counter, the terminal device comprising a data processing module. The ranging device or the terminal device also includes an angle sensor therein. The data processing module displays the received laser ranging information, or generates, in real-time, the travel trajectory of the ranging wheel based on distance information of the electronic counter and angle information of the angle sensor and draws the travel trajectory.

Abstract: The present invention relates to ranging system and ranging method, the ranging system includes: a ranging apparatus and a terminal device (3), wherein the ranging apparatus includes: a measuring wheel (1), a rotating shaft disposed on the measuring wheel (1), and an electronic counter (2) connected to the rotating shaft and used to obtain distance information of the measuring wheel; wherein the ranging apparatus or the terminal device (3) further includes an angle sensor; communication module being arranged on the terminal device (3) and the ranging apparatus, respectively; the terminal device (3) including data processing module configured to generate a traveling trajectory diagram of the measuring wheel, in real time, based on the distance information from the electronic counter (2) and the angle information from the angle sensor. Thereby, a traveling trajectory diagram can also be generated in real time on the basis that a ranging function is achieved, such that working efficiency is effectively improved.