accelerometer vs gyroscope

This post is translated from the IMU (accelerometer and Gyroscope devices) guide used in embedded applications.This article mainly introduces the mathematical models and basic algorithms of accelerometers and gyroscopes, and how to fuse the two, focusing on the discussion of algorithms and ideas.IntroducedThe purpose of this guide is to introduce inertial MEMS sensors, especially accelerometers and gyroscop

// Check the front and rear cameras BOOL cameraAvailable = [UIImagePickerController isCameraDeviceAvailable: enabled]; // The Front BOOL frontCameraAvailable = [UIImagePickerController enabled: enabled]; // The back // check the CoreLocation.

Ii. configuration file description "1.0"Encoding ="UTF-8"?> Android: versioncode ="1" Android: versionname ="1.0" Package ="Com. example. Android. accelerometerplay"> "@ Drawable/icon"Android: Label ="@ String/app_name"> ".

Since Andorid does not recommend the use of conventional directional sensors, it is recommended to use accelerometers and geomagnetic sensors to construct the data of the direction sensor, in fact the rotation angle of the z axis is the code example

various SMART services. The following table is a summative table that includes representative sensors except for light intensity sensors that are too simple. Now let's introduce them one by one. Accelerometer Electronic Compass Gyroscope Proximity sensor Function The human body motion is determined by measuring the acceleration of the three axes. Determine orientation b

Android OS 11 sensor introductionIn the Android2.3 gingerbread system, Google offers 11 types of sensor supply layer usage.#defineSensor_type_accelerometer 1//Acceleration#defineSensor_type_magnetic_field 2//Magnetic#defineSensor_type_orientation 3//direction#defineSensor_type_gyroscope 4//Gyroscope#defineSensor_type_light 5//Light Sensing#defineSensor_type_pressure 6//pressure#defineSensor_type_temperature 7//Temperature#defineSensor_type_proximity 8

"carrier" coordinate system values the four axes of their own coordinate system.4, in the "geographical" coordinate system, the value of gravity is always (0,0,1g), the value of geomagnetic is always (0,1,x). These values are measured by the sensors placed on the four axes.5. The "geographic" and "vector" coordinate systems are two different coordinate systems and need to be transformed. The conversion method is the coordinate system conversion, there are currently three ways: four Yuan (q0123)

of the four-rotor aircraft, and the position control is based on the perfect attitude control. As already mentioned, it is unreliable to obtain the angle value only by gyroscope integral, because of the inherent drift of the gyroscope, the error caused by the integral becomes more and more large, and the accelerometer is susceptible to noise and vibration distur

Introduction and use of the Core Motion framework in ios4 As a person who has just been learning iPhone programming for a week, the purpose of writing this article is not to enlighten the industry, but to summarize the knowledge. It would be better to attract you to give me lessons. The basic content of this article is written in reference to session 2010: sensing device motion in ios4 on WWDC 423, and the development documentation event handling guide for iPhone OS: Motion Events. Of course, I

Study on the feasibility of gravity induction gameA. Gravity sensing components in mobile phonesMany people know that the mobile phone has the function of gravity sensor, but what is gravity sensor is not very understanding. Gravity sensor is not a camera, people know how many pixels, not touch screen, people know whether it is capacitive screen or resistive screen, gravity sensor like shrouded in the fog of the valley, it is difficult to explore. The gravity sensing components are described in

I. Manual code and illustrations Ii. Process description 1, Angle calculation function description//============================================================================//function name: void Anglecalculate (void)//function return: none//parameter description: None//Function Summary: Body angle calculation. //============================================================================voidAnglecalculate (void) { //Reading AccelerometerMma8451_read (); //Read GyroscopeLs3g4200d_read (); //t

this issue, only to discuss how to get the original data Words don't say much, on the code initialization code implementation /*--------MPU6050 Address macro definition---------*/#define MPU6050_SLAVEADDR 0xd0//IIC write 6050 address #define MPU6050_ACCADDR 0x3B MPU acceleration Read Address #define MPU6050_GYROADDR 0x43//Gyroscope Read value address #define MPU_REMOVE_SLEEP 0x6b//de-hibernate address #define Mpu_gyro_ Smple_div 0x19//

A. Basic Concepts Autopilot: The control system of the aircraft, wherein the hardware contains the sensor part IMU and the control part of the MCU, the software part contains the control algorithm. tilt:pitch, rotate around the y axis of the coordinate system and imagine the usual plane Course:Yaw, rotating around the z axis of the coordinate system, imagine the usual plane roll, rotate around the x-axis of the coordinate system, imagine the usual plane

First, the sensor commonly used in mobile phonesIn the Android2.3 gingerbread system, Google offers 11 layers of sensor supply, as follows: (Sensor Class)#define Sensor_type_accelerometer 1//acceleration#define Sensor_type_magnetic_field 2//Magnetic#define Sensor_type_orientation 3//direction#define SENSOR_TYPE_GYROSCOPE 4//Gyroscope#define Sensor_type_light 5//Light Sensing#define SENSOR_TYPE_PRESSURE 6//pressure#define Sensor_type_temperature 7//tem

);NSLog (@ "Shake Cancel");}-(void) motionended: (uieventsubtype) Motion withevent: (uievent *) event{NSLog (@ "%zd,%@", motion,event);NSLog (@ "shaking end");}-(void) Touchesbegan: (Nsset{Accelerometer Correlationcmacceleration acceleration = self.mgr.accelerometerData.acceleration;NSLog (@ "x:%f y:%f z:%f", acceleration.x,acceleration.y,acceleration.z);Accelerometer CorrelationGyroscope relatedCmrotationr

you're going to do with the sensor? Yes, well, as the only way to identify mobile gestures, we naturally need to use sensors to recognize the impact, but there are a wide range of Android sensors, which one should we choose? In the Android2.3 era, the Android system has defined 11 sensors, in the current era of Android6.0, the number of sensors has reached 26, so many sensors we use which one, in fact, we only need to consider the 2.3 era of the 11 sensors available, because one side Late-stag

large number of floating-point budget to ensure high accuracy, this will affect the microcontroller to the final attitude control response rate, the advantage is to change the chip data, application mature, The price is cheap, is a very suitable for beginners to get started chip.Scenario Two: Fiber optic gyroscope. Fiber optic gyroscope is a sensitive element based on the optical fiber coil, the light emit

The phone sensor detects all the sensors available on the Android phone and graphically shows how they work. Cell phone sensors can also identify which sensors are supported by the phone's hardware and provide a sensing tool that plays an important role in our daily lives. The phone sensor can only detect changes. If the property does not change, it displays values for temperature, distance, light, and pressure that may be inaccurate.commonly used sensors in mobile phonesIn the Android2.3 ginger

Applications: Acceleration sensing, force size and direction sensing. (In many computers there is also a built-in accelerometer, the basic application scenario is to protect the hard drive when the computer falls) Representative Example: kissingly class application, Bowling game (Super Ball Escape), Fishing games Three-axis gyroscope Principle: A single axis can only measure the amount of On

Sensors in Windows phone mainly include accelerometer sensors, compass sensors, gyroscope sensors, etc.Accelerometer SensorsThe accelerometer class is an interface to the acceleration sensor, and the accelerometer class is located under the Windows.Devices.Sensors namespace. To use the function of the system