SensorTag-iOS监测数据本地txt存储方案修改

SensorTag-iOS监测数据本地txt存储方案修改

引子：

最近公司在研究关于

TI

的

SensorTag CC2650

相关开发板的相关套件。需要将测试数据储存下来，方便进行下一步研究。这边

SensorTag-iOS

源码

github

下载地址为：

https://github.com/JarvisW/SensorTag-iOS

思路：

这边需要将监测到的角速度，x、y、z，重力加速度x、y、z总共6个值进行存储。

1、存储文件txt命名用日期来存储。例如：20160330.txt。

2、每一个数据，存储一行，之间用“，”拼接。每条数据之后，再拼接一个日期“12：04：22”（时：分：秒）。

例如一条数据记录为：

0.1,0.4,0.9,-0.7,-27.3,-5.4，11:17:34

3、SensorTag套件采集数据1S采集10次。

代码：

说明：代码修改的项目中的

sensorTagMovementService.m

文件

#pragma mark -拼接展示数据
-(NSString *) calcValue:(NSData *) value {

char vals[value.length];
[value getBytes:vals length:value.length];

Point3D gyroPoint;

gyroPoint.x = ((float)((int16_t)((vals[0] & 0xff) | (((int16_t)vals[1] << 8) & 0xff00)))/ (float) 32768) * 255 * 1;
gyroPoint.y = ((float)((int16_t)((vals[2] & 0xff) | (((int16_t)vals[3] << 8) & 0xff00)))/ (float) 32768) * 255 * 1;
gyroPoint.z = ((float)((int16_t)((vals[4] & 0xff) | (((int16_t)vals[5] << 8) & 0xff00)))/ (float) 32768) * 255 * 1;

self.gyro = gyroPoint;

Point3D accPoint;

accPoint.x = (((float)((int16_t)((vals[6] & 0xff) | (((int16_t)vals[7] << 8) & 0xff00)))/ (float) 32768) * 8) * 1;
accPoint.y = (((float)((int16_t)((vals[8] & 0xff) | (((int16_t)vals[9] << 8) & 0xff00))) / (float) 32768) * 8) * 1;
accPoint.z = (((float)((int16_t)((vals[10] & 0xff) | (((int16_t)vals[11] << 8) & 0xff00)))/ (float) 32768) * 8) * 1;

self.acc = accPoint;

Point3D magPoint;
magPoint.x = (((float)((int16_t)((vals[12] & 0xff) | (((int16_t)vals[13] << 8) & 0xff00))) / (float) 32768) * 4912);
magPoint.y = (((float)((int16_t)((vals[14] & 0xff) | (((int16_t)vals[15] << 8) & 0xff00))) / (float) 32768) * 4912);
magPoint.z = (((float)((int16_t)((vals[16] & 0xff) | (((int16_t)vals[17] << 8) & 0xff00))) / (float) 32768) * 4912);

self.mag = magPoint;

//获取当前时间 拼接文件存储名字
NSDate * dateOfToday = [NSDate date];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSUInteger unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;

NSDateComponents *dateComponent = [calendar components:unitFlags fromDate:dateOfToday];
int year = [dateComponent year];
int month = [dateComponent month];
int day = [dateComponent day];
NSString * stringOfToday = [NSString stringWithFormat:@"%d%02d%02d.txt",year,month,day];
//拼接存储数据  当独一条字符串信息拼接。如2，3，4，5，6，7
NSString * stringOfData = [NSString stringWithFormat:@"%.1f,%.1f,%.1f,%.1f,%.1f,%.1f，%02d:%02d:%02d\n",self.acc.x,self.acc.y,self.acc.z,self.gyro.x,self.gyro.y,self.gyro.z,[dateComponent hour],[dateComponent minute],[dateComponent second]];

//调用方法存入本地

[self saveToDocumentWithData:stringOfData NamedTo:stringOfToday];

return [NSString stringWithFormat:@"ACC : X: %+6.1f, Y: %+6.1f, Z: %+6.1f\nMAG : X: %+6.1f, Y: %+6.1f, Z: %+6.1f\nGYR : X: %+6.1f, Y: %+6.1f, Z: %+6.1f",self.acc.x,self.acc.y,self.acc.z,self.mag.x,self.mag.y,self.mag.z,self.gyro.x,self.gyro.y,self.gyro.z];
}

#pragma mark -将数据村粗在本地Document路径下
-(void)saveToDocumentWithData:(NSString *)data NamedTo:(NSString *)name{

//错误信息
NSError *error;
// 创建文件管理器
NSFileManager *fileManager = [NSFileManager defaultManager];

//Documents: 最常用的目录，iTunes同步该应用时会同步此文件夹中的内容，适合存储重要数据。
NSString * path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).firstObject;
//根据名字获取当前的文件  文件名字存储命名为：20160329.txt
NSString * filePath= [path
stringByAppendingPathComponent:name];

if (![fileManager fileExistsAtPath:filePath])
{//如果不存在
NSLog(@"%@ is not exist",name);
//创建文件 方式一（创建之后，不能直接return，需要写内容，不然第一条数据没有存储）
//        [fileManager createFileAtPath:name contents:nil attributes:nil];
//创建文件 方式二（写入文件），直接return出去
[data writeToFile:filePath atomically:YES encoding:NSUTF8StringEncoding error:nil];
return ;
}

NSFileHandle *fileHandle = [NSFileHandle fileHandleForUpdatingAtPath:filePath];
//将节点跳到文件的末尾
[fileHandle seekToEndOfFile];
//追加显示数据
[fileHandle writeData:[data dataUsingEncoding:NSUTF8StringEncoding]];
//关闭文件
[fileHandle closeFile];
//显示文件目录下有哪些文件
NSLog(@"Tjj显示文件目录下有哪些文件: %@",
[fileManager contentsOfDirectoryAtPath:path error:&error]);

//读取指定文件的内容（读取方式有两种）
NSData *fileData = [fileManager contentsAtPath:filePath];//filePath是包含完整路径的文件名
//    或方式二直接用NSData 的类方法： dataWithContentOfPath
//    NSData *fileData2 = [NSData dataWithContentsOfFile:filePath]; //方式二
NSString *aString = [[NSString alloc] initWithData:fileData encoding:NSUTF8StringEncoding];
NSLog(@"Tjj读取指定文件中的内容:%@",aString);
}

存储结果展示

存储的结果例如：

20160330.txt

内容如下：

0.0,0.4,0.9,0.1,-2.2,-2.6，11:17:34
0.0,0.4,0.9,2.0,5.4,2.0，11:17:34
0.0,0.4,0.9,-2.7,1.1,-0.4，11:17:34
0.0,0.4,0.9,1.1,0.4,-0.8，11:17:34
0.0,0.4,0.9,0.5,1.5,-0.2，11:17:34
0.0,0.4,0.9,1.6,3.0,1.5，11:17:34
0.0,0.4,0.9,0.9,2.6,0.4，11:17:34
0.1,0.4,0.9,-0.7,-27.3,-5.4，11:17:34
0.0,0.4,0.9,5.2,-15.5,3.4，11:17:35
0.1,0.3,0.9,-3.7,1.3,2.6，11:17:35
0.1,0.3,0.9,4.5,-11.4,-1.1，11:17:35
0.1,0.4,0.9,-9.0,17.3,-4.2，11:17:35
0.0,0.4,0.8,6.1,-11.4,-6.4，11:17:35
0.1,0.4,0.9,1.8,-0.4,1.3，11:17:35
0.1,0.4,0.9,-0.1,-2.1,0.1，11:17:35
0.1,0.4,0.9,4.7,-2.6,-2.2，11:17:35
0.1,0.4,0.9,0.3,-1.7,-3.0，11:17:35
0.1,0.4,0.9,-0.7,-2.9,-2.8，11:17:35
0.1,0.4,0.9,-1.5,2.6,-0.3，11:17:36
0.1,0.4,0.9,-0.1,1.6,-0.1，11:17:36
0.1,0.4,0.9,3.1,3.4,-0.2，11:17:36
0.1,0.4,0.9,3.5,9.0,0.3，11:17:36
0.1,0.4,0.9,1.0,-0.9,1.0，11:17:36
0.1,0.4,0.9,2.4,1.8,3.2，11:17:36
0.1,0.4,0.9,2.9,-7.1,-4.9，11:17:36
0.1,0.4,0.8,-1.3,4.1,0.9，11:17:36
0.1,0.4,0.9,-0.4,3.0,0.0，11:17:36
0.1,0.4,0.9,5.6,0.4,-1.0，11:17:36
0.1,0.4,0.9,5.8,-1.9,-0.6，11:17:37
0.1,0.4,0.8,1.1,5.0,3.1，11:17:37
0.1,0.4,0.9,0.4,0.2,0.3，11:17:37
0.1,0.4,0.9,2.9,0.9,2.2，11:17:37
0.1,0.4,0.9,1.1,3.7,2.9，11:17:37
0.1,0.4,0.9,0.8,2.1,-0.2，11:17:37
0.1,0.4,0.9,-0.1,-0.7,-2.7，11:17:37
0.1,0.4,0.9,0.5,-0.6,1.8，11:17:37
0.1,0.4,0.9,2.3,2.2,-1.7，11:17:37
0.1,0.4,0.9,-0.6,-1.9,-0.3，11:17:37
0.1,0.4,0.9,-0.3,-0.7,-0.4，11:17:38
0.1,0.4,0.9,0.9,2.4,0.4，11:17:38
0.1,0.4,0.9,1.5,2.8,0.5，11:17:38
0.1,0.4,0.9,0.2,2.2,-0.4，11:17:38
0.1,0.4,0.9,1.2,1.0,-0.3，11:17:38
0.1,0.4,0.9,0.5,0.1,-1.2，11:17:38
0.1,0.4,0.9,1.5,1.1,-0.5，11:17:38
0.1,0.4,0.9,0.3,-0.5,-0.2，11:17:38
0.1,0.4,0.9,-1.5,-0.7,0.6，11:17:38
0.1,0.4,0.9,-0.5,-0.2,0.0，11:17:38
0.1,0.4,0.9,0.2,-0.5,-1.1，11:17:39
0.1,0.4,0.9,-0.4,1.7,0.5，11:17:39
0.1,0.4,0.9,0.1,0.8,0.3，11:17:39
0.1,0.4,0.9,-0.4,1.9,0.2，11:17:39
0.1,0.4,0.9,1.5,2.2,-0.1，11:17:39
0.1,0.4,0.9,1.4,3.3,0.6，11:17:39
0.1,0.4,0.9,0.9,1.3,0.6，11:17:39
0.1,0.4,0.8,0.8,1.0,0.2，11:17:39
0.1,0.4,0.9,0.1,1.4,-0.3，11:17:39
0.1,0.4,0.9,1.2,1.6,0.0，11:17:39
0.1,0.4,0.9,-0.3,2.2,0.9，11:17:40
0.1,0.4,0.9,1.0,0.6,0.4，11:17:40
0.1,0.4,0.9,0.4,0.5,0.2，11:17:40
0.1,0.4,0.9,0.9,0.9,0.3，11:17:40
0.1,0.4,0.9,1.1,0.5,-0.1，11:17:40
0.1,0.4,0.9,0.8,0.5,-0.1，11:17:40
0.1,0.4,0.9,0.0,-0.7,-0.3，11:17:40
0.1,0.4,0.9,0.2,0.2,-0.0，11:17:40
0.1,0.4,0.9,0.0,0.8,-0.5，11:17:40
0.1,0.4,0.9,-0.2,1.2,0.0，11:17:40
0.1,0.4,0.9,0.5,-0.2,0.0，11:17:41
0.1,0.4,0.9,-0.4,2.3,0.7，11:17:41
0.1,0.4,0.9,0.7,1.4,0.8，11:17:41
0.1,0.4,0.9,0.9,0.3,0.6，11:17:41
0.1,0.4,0.9,1.2,1.9,-0.9，11:17:41
0.1,0.4,0.9,2.8,-0.9,0.5，11:17:41
0.1,0.4,0.9,0.3,1.5,2.4，11:17:41
0.1,0.4,0.9,2.2,0.4,-0.4，11:17:41
0.1,0.4,0.9,1.0,0.6,1.0，11:17:41
0.1,0.4,0.8,-0.1,1.4,-0.4，11:17:41
0.1,0.4,0.9,0.4,0.3,-0.3，11:17:42
0.1,0.4,0.8,-0.8,1.4,0.7，11:17:42
0.1,0.4,0.8,0.6,-1.3,0.6，11:17:42
0.1,0.4,0.9,-0.5,3.1,0.1，11:17:42
0.1,0.4,0.8,0.9,0.2,0.9，11:17:42
0.1,0.4,0.9,2.6,0.1,0.1，11:17:42
0.1,0.4,0.9,0.2,4.0,-0.3，11:17:42
0.1,0.4,0.8,1.1,2.8,1.4，11:17:42
0.1,0.4,0.9,0.9,0.2,-2.1，11:17:42
0.1,0.4,0.8,-0.1,4.5,0.9，11:17:42
0.1,0.4,0.9,2.7,-1.9,-1.9，11:17:43
0.1,0.4,0.9,-1.3,4.5,-0.3，11:17:43
0.1,0.5,0.8,-0.4,0.6,2.1，11:17:43
0.1,0.4,0.9,-0.1,0.4,-2.1，11:17:43
0.1,0.4,0.8,-0.2,3.1,1.0，11:17:43
0.1,0.4,0.8,2.2,-1.4,-0.9，11:17:43
0.1,0.4,0.9,-0.4,2.5,-0.2，11:17:43
0.1,0.4,0.8,-0.3,1.6,1.3，11:17:43
0.1,0.4,0.9,2.0,-0.2,-0.6，11:17:43
0.1,0.4,0.9,-0.9,5.2,1.9，11:17:43
0.1,0.4,0.8,1.6,-0.4,0.1，11:17:44
0.1,0.4,0.9,-0.4,0.9,-0.5，11:17:44
0.1,0.4,0.8,-1.1,2.2,2.6，11:17:48
0.0,1.0,-0.4,255.0,242.3,14.3，11:17:48
0.4,0.7,-0.8,255.0,136.5,-49.3，11:17:48
0.5,0.4,-1.0,143.8,32.9,-57.3，11:17:48
0.3,0.4,-0.7,-255.0,78.0,-20.1，11:17:48
0.3,-1.0,0.5,-255.0,255.0,145.5，11:17:48
0.4,0.3,1.1,255.0,-53.7,59.1，11:17:48
0.8,1.1,-0.8,255.0,-105.1,255.0，11:17:48
0.4,-0.3,0.6,255.0,154.4,236.2，11:17:48
0.4,-0.8,0.4,-144.7,255.0,-255.0，11:17:49
-1.2,0.2,0.9,-255.0,248.4,-255.0，11:17:49
-0.7,0.0,0.3,164.0,-71.1,-204.9，11:17:49
-0.4,1.0,0.2,255.0,-207.9,94.5，11:17:49
2.2,0.1,-2.2,255.0,-255.0,255.0，11:17:49
-0.2,-1.0,-0.3,255.0,20.1,19.4，11:17:49
-0.2,-0.0,0.6,-190.1,255.0,-255.0，11:17:49
-1.4,0.3,1.2,-168.1,192.0,-255.0，11:17:49
-1.0,0.7,0.7,180.4,-123.2,-255.0，11:17:49
0.2,1.8,-0.0,255.0,-160.4,200.6，11:17:49
1.6,-0.2,-2.8,255.0,175.3,255.0，11:17:50
-0.1,-1.5,-0.3,183.8,40.1,-255.0，11:17:50
-1.0,0.2,0.4,-2.3,128.9,-255.0，11:17:50
-2.6,0.5,1.4,-70.2,-21.8,-255.0，11:17:50
-1.6,1.1,0.3,255.0,-255.0,-255.0，11:17:50
0.8,2.5,-1.0,255.0,-40.2,255.0，11:17:50
0.9,0.3,-2.1,255.0,255.0,255.0，11:17:50
-0.4,-0.4,0.0,131.1,132.0,-255.0，11:17:50
-2.5,0.1,1.3,-71.9,127.9,-255.0，11:17:50
-2.9,0.4,-0.4,148.9,-255.0,-255.0，11:17:50
-0.9,4.8,-1.2,255.0,-209.6,-35.0，11:17:51
2.5,1.7,-2.2,255.0,197.0,255.0，11:17:51
0.5,0.8,-0.5,255.0,135.1,255.0，11:17:51
-1.2,0.1,0.3,93.6,45.7,-255.0，11:17:51
-3.7,-0.5,1.4,5.0,102.2,-255.0，11:17:51
-1.4,0.5,0.3,255.0,-255.0,-114.2，11:17:51
1.4,1.6,-1.9,255.0,-216.2,255.0，11:17:51
-0.3,-4.2,-1.7,255.0,-77.1,255.0，11:17:51
-0.2,-0.2,-0.7,255.0,124.0,-255.0，11:17:51
-2.5,0.2,1.7,-236.1,255.0,-255.0，11:17:51
-2.4,-0.3,0.4,64.0,-44.8,-255.0，11:17:52
-1.9,2.4,-0.0,255.0,-255.0,-255.0，11:17:52
1.2,1.6,-2.9,255.0,255.0,255.0，11:17:52
-1.0,1.2,-0.9,255.0,255.0,255.0，11:17:52
-0.5,-0.7,0.1,113.7,24.1,-255.0，11:17:52
-4.3,1.0,1.6,51.6,193.2,-255.0，11:17:52
-2.3,0.4,0.7,255.0,-255.0,40.9，11:17:52
1.5,-0.9,-2.9,255.0,-255.0,255.0，11:17:52
-0.9,-1.0,-0.8,255.0,214.8,7.3，11:17:52
-1.5,-0.6,-0.5,-104.1,255.0,-255.0，11:17:52
-2.4,2.0,2.1,107.5,254.1,-255.0，11:17:53
-1.4,0.6,0.7,126.3,-254.5,-238.0，11:17:53
-0.2,1.3,0.5,5.5,-255.0,-255.0，11:17:53
-0.1,1.7,-0.6,255.0,-255.0,255.0，11:17:53
1.0,0.0,-1.2,255.0,225.4,255.0，11:17:53
-0.9,-1.1,0.1,116.5,206.0,-255.0，11:17:53
-3.5,0.8,0.2,-87.6,255.0,-255.0，11:17:53
-1.8,-0.1,0.4,255.0,-255.0,-125.1，11:17:53
2.1,2.0,-3.2,255.0,-255.0,255.0，11:17:53
1.6,-2.8,-2.8,255.0,32.3,113.2，11:17:53
0.2,-0.5,-1.3,255.0,185.8,-135.5，11:17:54
-3.9,0.8,1.1,39.7,255.0,-255.0，11:17:54
-1.9,1.2,-0.6,255.0,-255.0,-255.0，11:17:54
3.6,1.5,-3.3,255.0,-255.0,255.0，11:17:54
0.8,-1.9,-2.6,154.0,255.0,138.3，11:17:54
-1.5,0.1,-0.6,255.0,255.0,-170.5，11:17:54
-4.0,-0.4,0.7,255.0,124.4,-255.0，11:17:54
-1.9,1.3,-0.4,255.0,-255.0,-113.4，11:17:54
0.8,1.8,-2.7,255.0,-255.0,255.0，11:17:54
0.8,0.3,-2.9,255.0,255.0,255.0，11:17:54
-2.7,-0.0,-0.8,255.0,255.0,-131.5，11:17:55
-3.6,1.3,0.9,255.0,-255.0,-255.0，11:17:55
-0.5,5.7,-0.3,249.5,-255.0,-255.0，11:17:55
0.3,1.3,-1.4,159.5,-255.0,255.0，11:17:55
-0.8,-0.9,-0.8,-117.9,255.0,255.0，11:17:55
-2.1,-0.5,-0.8,255.0,144.1,-30.7，11:17:55
-1.5,4.4,-0.4,96.1,-255.0,47.9，11:17:55
-0.3,1.8,-3.5,-140.9,-255.0,255.0，11:17:55
-1.3,0.3,-1.2,255.0,255.0,236.0，11:17:55
-2.1,-0.8,-0.3,255.0,255.0,38.8，11:17:55
0.6,4.4,1.3,255.0,-255.0,162.4，11:17:56
-2.2,2.3,-4.6,-255.0,-255.0,255.0，11:17:56
-0.9,1.4,-1.7,175.2,255.0,167.0，11:17:56
-0.2,-0.2,-1.4,98.3,255.0,111.9，11:17:56
-3.1,0.1,1.2,255.0,-33.4,178.6，11:17:56
-1.0,2.6,-1.4,39.0,-255.0,255.0，11:17:56
0.9,-0.4,-5.8,-42.1,81.8,255.0，11:17:56
-0.1,1.0,-1.5,-188.3,255.0,255.0，11:17:56
-1.7,-3.3,-0.6,255.0,97.5,76.7，11:17:56
-1.1,2.2,-2.7,255.0,-255.0,-150.1，11:17:56
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0.6,0.9,0.1,140.5,99.8,253.1，11:18:00
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0.3,0.9,0.3,108.2,-50.1,177.2，11:18:02