Datasheet

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System connection

The RPLIDAR S1 consists of a range scanner core and the mechanical powering

part which makes the core rotate at a high speed. When it functions normally, the

scanner will rotate and scan clockwise. And users can get the range scan data via

the communication interface of the RPLIDAR and control the start, stop and

rotating speed of the rotate motor via PWM.

Figure 1-1 RPLIDAR S1 System Composition

The RPLIDAR S1 comes with a rotation speed detection and adaptive system. The

system will adjust the angular resolution automatically according to the actual

rotating speed. And there is no need to provide complicated power system for

RPLIDAR S1. In this way, the simple power supply schema saves the BOM cost. If

the actual speed of the RPLIDAR is required, the host system can get the related

data via communication interface.

The detailed specification about power and communication interface can be

found in the following sections.

Mechanism

The RPLIDAR S1 is based on laser flight-of-time (TOF) ranging principle and

adopts the high-speed laser acquisition and processing hardware developed by

SLAMTEC. The system ranges more than 9200 times per second.

During every ranging process, the RPLIDAR emits modulated infrared laser signal

and the laser signal is then reflected by the object to be detected. The returning

signal is then sampled by laser acquisition system in RPLIDAR and the DSP

Range Scanner Core

Communication and

Power Interface