accelerometer calibration

I. The work to be prepared: Make sure the monitor is set to its original resolution, which can help improve the accuracy of the calibration results. Second,Win7 32-bit system display Color Calibration screen calibration function of the specific use of the steps: 1, first press "Win+r" to open the "Run" window, and then enter the "DCCW" command, after the carri

in the laboratory or engineering, we often need to calculate the two-dimensional image coordinates of the captured image to compute three-dimensional coordinates. As shown, we have such a picture. We need to calculate the three-dimensional position of the object and the manipulator so that the manipulator can grasp the object precisely.We use the Zhang Zhengyu calibration method to calibrate the internal and external parameters and calculate the corre

I have benefited from this blog from Daniel: http://blog.csdn.net/sunanger_wang/article/details/7744025 http://www.opencv.org.cn/forum.php?mod=viewthreadtid=12963 http://blog.csdn.net/scyscyao/article/details/5562024 http://blog.csdn.net/chenyusiyuan/article/details/5967291 The last three consecutive articles were introduced in detail, very good. Because there are no answers to some of the questions below, those are details, but you know that sometimes it's a little bit of an hour to get stuck.

An accelerometer is a sensor that can sense the linear acceleration of a device. It is widely used in guidance and control of aviation, navigation, aerospace and weapons. There are many types of linear accelerometer. Currently, three-axis accelerometer is used in mobile devices such as IOS. It can be used to sense the linear acceleration changes in the direction

Cocos2d-x mobile game mobile IOSAn accelerometer is a sensor that can sense the linear acceleration of a device. It is widely used in guidance and control of aviation, navigation, aerospace and weapons. There are many types of linear accelerometer. Currently, three-axis accelerometer is used in mobile devices such as IOS. It can be used to sense the linear accele

Recently before the improvement of the visual fixed-point algorithm, there was only one location ring, now ready to cascade a series of speed loop, but to solve the drone translation speed is still quite a headache, the online information is very small, we need to move our own brain to solve this problem.The first step is to measure the level of speed, the traditional method is GPS, I designed the UAV in the application scene of the GPS signal although there is, but not so stable, followed by th

Sometimes, the same picture in other people's computer to open it feels very beautiful, and on their own computer opened on the feeling that some of the worse, this is why? In fact, this is a visual experience problem, some people's computer set up a good display effect, before the operation must remember the Win7 system screen Calibration screen calibration Adjusts, you can adjust the brightness of the scr

to study)Use third-party libraries (the underlying C functions are encapsulated with OC)Https://github.com/Shmoopi/iOS-System-ServicesHttps://github.com/erica/uidevice-extensionAcceleration meterThe accelerometer can be used to detect the movement of a device, and common applications such as shake/pedometer are based on accelerometers."Accelerometer mainly through: testing equipment in the X, Y, Z axis acc

One, the "filter" of the dataThe raw data obtained directly from the accelerometer is often not used directly, but some disturbing data needs to be removed, a process called "filtering". The word "filter" is derived from the process of radio signal processing in radio technology. In fact they are the same from the mathematical point of view, they are some kind of sampling signal, this "filtering" process is very complex, to achieve "filter" by Fourier

Note: We must have our battery fully charged before verifying the battery.1. Then we boot the notebook, and then when the logo icon appears, press the "F2" as shown in the following figure.2. This goes to the BIOS management interface of the notebook. Let's see the details. Start the checksum now. 1. Entering the BIOS interface, we click on the "Advanced" button.2. Then we find the "Smart Battery calibration" as shown in the following figure by clic

I. INTRODUCTION of COREMOTION FrameworkWe know that there are some iOS apps that have special requirements, such as:1. E-Compass Compass application: Let us know the direction.2. Sport type Software: Let us know how many kilometres we run.3. Shake and shake function in social software.4. Play in the role class in the game according to the device's shaking and so on operation.In fact, they're mostly using a core motion framework in iOS.CoreMotion.framework Use the framework that iOS prov

mtoast;mtoast = ToaSt.maketext (Shakeactivity.this, "hehe, success!. \ n Try it again! Mtoast.show (); Mvibrator.cancel (); Mshakelistener.start ();}}, 2000);}); Define vibrate public void Startvibrato () {mvibrator.vibrate (new long[] {500, 200, 500, 200},-1);//The first {} Inside is the rhythm array,//The second parameter is the number of repetitions, -1 for non-repetition, non-1 to start repeating} @Overrideprotected void OnDestroy () {Super.ondestroy () from the specified subscript of patte

BIN CHEN May 23, 2012, Evening 10:34 12 Some mobile phone players and enthusiasts are interested in the components of some mobile phones and even want to know how they work. Now, both mobile phones and tablets are basically built-in acceleration sensors to identify the direction of the device's rotation. Bill Hammack, an engineer from Illinois University, briefed us on how this acceleration sensor works and is not a tedious sermon, but an animated film to help explain it.Bill Hammack used Andr

); } public String Getlastknowny () {return (y = =-999)? "Null": string.valueof (y); } public String Getlastknownz () {return (z = =-999)? "Null": String.valueof (z); } public void Setrate (String rate) {mrate = Sensorrate.getint (rate),} public String getrate () {return sensorrate.getstring (Mrat e); } public void setcycle (int milliseconds) {mcycle = milliseconds,} public int getcycle () {return mcycle;} public void S eteventcycle (int milliseconds) {meventcycle = milliseconds;} public int get

In the use of Daniel touchsnow development plug-in cocoseditor game development encountered some problems, and then try to solve, recently want to try the coocs2d-html5 can use gravity sensing, found that is OK, however, this can only be tested on a mobile real machine, but not on a computer simulator,You must first set the Accelerometer in the onDidloadFromCCB () method: This. rootNode. onAccelerometer = function (event) {this. controller. onAcc

In the use of Daniel Touchsnow developed plug-in cocoseditor development game encountered some problems, and then try to solve, recently want to try COOCS2D-HTML5 can use gravity sensor, found that is possible, but this can only be tested on the mobile real machine, The simulator on the computer is not working,You first need to set the accelerometer within the ONDIDLOADFROMCCB () method:This.rootNode.onAccelerometer = function (event) { this.contro

/*** Coremotion**/#import "ViewController.h"#import @interface Viewcontroller ()@property (nonatomic, strong) Cmmotionmanager *mgr;//must be made into a global@end@implementation Viewcontroller-(void) Viewdidload {[Super Viewdidload];[Self push];[self-pull];}-(void) Touchesbegan: (Nsset *) touches withevent: (Uievent *) event{cmacceleration acceleration = self.mgr.accelerometerData.acceleration;Logred (@ "%f---%f----%f", acceleration.x, ACCELERATION.Y, acceleration.z);}/*** Pull---when needed, c

Cocos2d-x accelerometer instance: moving ball, cocos2d-x AccelerationNext we will use an example to describe how to access the accelerometer through layer-based accelerometer events. As shown in this example, there is a ball in the scene. When we place the mobile device horizontally, the screen is up, and then shake the mobile device left and right to change the