how to calibrate accelerometer

With the improvement of people's living standards, coupled with the rapid development of mobile technology, more and more software into the health industry, pedometer is used to record the personal movement of a very good technology. This period of time out of curiosity about this technology, learn to learn the steps of the implementation process.There are two ways to implement the pedometer, (1), directly call the HealthKit framework to obtain Apple's health application data. (2) Speed sensor m

Brief The next content will be the basic functions of MPU9250 detailed introduction, mainly divided into modules for elaboration. Clock MPU9250 has two internal clock sources, as well as a PLL.Internal clock Source: Clock Source Description Internal oscillator Low power consumption, but slightly worse clock accuracy X,y or Z-direction gyro MEMS clock, high power consumption, but clock accuracy (as long as the gyro is enabled, it will use the

ORION (OracleIOCalibrationTool) is an independent tool used to calibrate the IO performance of the Oracle database storage system. Calibration Results for understanding storage system performance ORION (Oracle I/O Calibration Tool) is an independent Tool used to calibrate the I/O performance of the Oracle database's storage system. Calibration Results for understanding storage system performance 1. Fea

Baidu checked two methods;First, we put the quilt on the bed and threw the cell phone hard to let it go in the air for more than three and a half weeks, turning around 720 °;The second is to put the cell phone horizontally aside and wait for it to calibrate. After my own tests,The first one is tossing for a long time, and the compass is not turned green and ineffective;In the second case, the compass is white first. After a long time, it turns red. T

off with ntpdate instead of ntpd lazy people:)), However, in some cases, ntpdate can still be considered:? Cases where the time accuracy requirement is not high? After the server restarts, NTPD is not started, use ntpdate to adjust the time, and then enable NTPD (note ntpd and ntpdate with a product 123, NPTD can no longer use ntpdate)There are a few very obvious questions about how to adjust the time with ntpdate:1. It is not safe to do so. Ntpdate's settings depend on the security of the NTP

1, first find the right lower corner power Management icon, left click; 2, click on the red circle in the gears; 3, click on the beginning of the red circle, you can calibrate the battery accuracy. Power Management 7.0 1, first find the right lower corner power Management icon, left click; 2, click the red circle in the battery settings; 3, select the Advanced Function tab, click on the

capture the NTP server and perform some expendable tasks with the server with which it synchronizes. Because the ntpdate is in the same way that the server following it does not know if an exception has occurred (time is different, the only way is to use the server). Second, this is not accurate. Once the NTP server is down, the server following it will not be able to synchronize time. Unlike this, ntpd not only can calibrate the computer's time, but

code to your project, you need to set up the project or the compilation environment. Detailed settings under VC6 can be seen in the code's comments (modify the properties of the project) The settings in VS2008 can also be referenced in the code comments vc++2005 settings (Modify the compilation environment) 2. Calibration Because OpenCV in cvstereocalibrate always get very exaggerated results (see below 5.1 problem description), so finally decided to use Bouguet MATLAB Calibration Toolbox St

following: int aaaa = 12;int b = 23;int CCC = 23; Alignconsecutivedeclarations (BOOL) If True (true), calibrate the continuous declaration. This will calibrate the name of multiple consecutive lines of the declaration. This will result in a format like the following: int aaaa = 12;float b = 23;std::string CCC = 23; Alignescapednewlinesleft (BOOL) If True (true), Calibr