Page 56 - Fredo Eyong

HOW THE WALKING STICK WORKS

They are five parts of the system:

Lidar sensors scan the ground from side to side with a pulse laser

beam as the user walks, the sensor has a detector for sensing the

returns from objects. Gps receivers track the altitude and location SENARIO 1:

of the user (with the product) these variables are vital in registering In an event where there is an obstacle

accurate terrain elevation values, the IMU (inertial measurement in front(5m) of the user the top

unites) track the orientation and speed of the walking aid paired transmitter vibrates to alert the use.

with its user as the walk. Elevation calculations use orientation to

accurately determine the actual position of the pulse on the ground.

Computers record all the height information as the lidar scan the

surface. These five parts of Lidar system, work as a team to generate

highly accurate and useable results which it transfers to the haptic

feedback sensors to alert the user of obstacles.

SENARIO 2:
LiDAR In an event where there is an obstacle

Light Detection and Ranging. on the left (5m) of the user the left

Lidar is a remote sensing method that uses laser to measure transmitter vibrates to alert the use.

elevation like ground, forest and buildings. Lidar uses ultraviolet

Visible or near Infrared source to sense objects. Light energy

emitted by lidar system is known as pulse.Light reflected from

ground or objects is known as return.Lidar system send a pulse of

light and wait for the pulse to return, it measures how long it takes

for the emitted pulse to return to the sensor and it gets a variable

distance of the objects.Lidar system allows use to examine both

natural and man-made environment with accuracy and precision SENARIO 3:

and flexibility. In an event where there is an obstacle

on the right (5m) of the user the right

transmitter vibrates to alert the use.