Questions tagged [sensor]
For questions about drone sensors, sensor uses and any issues encountered with using specific sensors
11
questions
2
votes
0answers
15 views
How to implement sensor fusion with IMU and GPS
I have a 9-axis IMU (MPU9250) and a GPS module and I'm considering using other sensors later,...
4
votes
1answer
30 views
Estimate position of a balloon attached to a quadcopter
I'm trying to measure/estimate the position of a balloon, for that I need the two angles shown in the picture below. enter image description here
The idea is to place a helium filled balloon on a ...
4
votes
1answer
39 views
What are controllers of Parrot AR drone 2?
I have a few questions about Parrot AR drone 2. Here is the official website
Q1:What are the controllers for the AR drone 2? Is there a position controller (GPS), velocity controller (accelerometer), ...
2
votes
1answer
46 views
Is roll rate, pitch rate and yaw rate same as gyro data along y-axis, x-axis and z-axis
As per the title, I want to understand if the roll rate/pitch rate/yaw rate are same as the data obtained from mpu9250 gyro sensor along y-axis, x-axis and z-axis?
If not then how to calculate roll ...
8
votes
3answers
96 views
Is there an open source video processing/sensor based follow me technology?
I'm constructing a multirotor drone and want to introduce follow me feature, are there any open source solutions I can use for that purpose?
Please note that I want the tracking algorithm to be ...
3
votes
0answers
24 views
What is the frame system defined for Orientations comptutation using Quaternions [Madgwick filter/ Mahony filter]?
I am working with MPU9250 and I have implemented attitude & heading reference system based on Madgwick/Mahony filter. I capture the raw data [accel, gyro, mag] and pass to the Madgwick filter in ...
2
votes
0answers
42 views
Using MPL3115A2 to get relative altitude of a drone
I am using MPL3115A2 Altimeter to get the accurate relative altitude of my drone. I am getting an error of 30-60 cm without even moving the sensor. I have used several averaging and filtering methods ...
7
votes
2answers
269 views
What does the full scale range in a IMU MPU9250 datasheet signify?
I have MPU9250 IMU, which I am working on to get orientations from the sensor output data. While exploring the MPU9250 (also other sensor such as BNO055) datasheet I came across the full scale range ...
7
votes
2answers
96 views
Difference between a 3 and 6 axis gyro
When shopping for drones, I see a 3 and 6 axis gyro available, what is the difference between the two? Does one have a advantage when flying over another?
5
votes
2answers
41 views
Optical sensors vs Ultrasonic sensors on a drone
Are there any performance differences between optical sensors and ultrasonic sensors? How do I make the right choice for my drone? I will be using them in a object detection system for collision ...
7
votes
2answers
116 views
What are the usual engineering considerations for a UAV current sensor?
Current sensors are a popular feature in both multicopter and fixed wing flight control stacks.
Most of them are analog, i.e. convert the current into a voltage using a small-value shunt resistor (...
