基于蓝牙BLE的智能设备开发（一）
2015-05-11 19:47
741 查看
优点：
快速搜索，快速连接，超低功耗保持连接和传输数据
弱点：
数据传输速率低
背景：
Android 4.3才开始支持BLE API
穿戴设备发展
BLE的构成
Service
Characteristic（接收的 特性的 UUID）
Descriptor（数据到蓝牙的 特性 的UUID）
这三部分都由UUID作为唯一标示符。
public static String MYCJ_BLE = "0000ffe1-0000-1000-8000-00805f9b34fb";
public static String MYCJ_BLE_READ = "0000fff1-0000-1000-8000-00805f9b34fb";
public static String MYCJ_BLE_WRITE = "0000fff2-0000-1000-8000-00805f9b34fb";
一个蓝牙4.0的终端可以包含多个Service，一个Service可以包含多个Characteristic，一个Characteristic包含一个Value和多个Descriptor，一个Descriptor包含一个Value
计算卡路里的消耗：
根据 步数(步), 身高(厘米), 体重(千克), 时间(小时)算出消耗的能量KCal(千卡) kcal = 体重 * 时间 * 指数(k) k= 30 / 速度( N分钟 / 400米) = 30 / 多少分钟400米
根据用户传入的身高与步数, 返回用户步行的里程
根据传入的当前步数与目标步数，计算完成的百分比
天气预报
传入天气及温度的String, 返回协议的bytes[]
通过温度湿度的传感器，进行天气的预警
package com.example.mybletestdemo;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Map;
import java.util.HashMap;
/**
* 数据转换工具类
* @author Administrator
*
*/
public class DataUtil {
private static StringBuffer sbTime;
private static String now, year, month, day, hour, min, ss;
private static SimpleDateFormat sdf = new SimpleDateFormat(
"yyyyMMddHHmmssSSS");
private static String resultString = null;
private static String resultTrimData = null;
public static DecimalFormat df = new DecimalFormat("0.00");
public DataUtil() {
}
/**
* 时间同步 取得当前的时间, 并转为需要的格式: 16进制String并以F4开头
*/
public static String getTimeFormat() {
sbTime = new StringBuffer();
now = null;
now = sdf.format(new Date());
year = Integer
.toHexString(Integer.parseInt(now.substring(0, 4)) - 1900);
now.substring(4, 6);
month = Integer.toHexString(Integer.parseInt(now.substring(4, 6)));
if (month.length() == 1)
month = '0' + month;
day = Integer.toHexString(Integer.parseInt(now.substring(6, 8)));
if (day.length() == 1)
day = '0' + day;
hour = Integer.toHexString(Integer.parseInt(now.substring(8, 10)));
if (hour.length() == 1)
hour = '0' + hour;
min = Integer.toHexString(Integer.parseInt(now.substring(10, 12)));
if (min.length() == 1)
min = '0' + min;
ss = Integer.toHexString(Integer.parseInt(now.substring(12, 14)));
if (ss.length() == 1)
ss = '0' + ss;
sbTime.append("F4");
sbTime.append(year);
sbTime.append(month);
sbTime.append(day);
sbTime.append(hour);
sbTime.append(min);
sbTime.append(ss);
sbTime.append("00");
now = sbTime.toString().toUpperCase();
return now;
}
/**
* 取得String字符的前两位
*/
public static String getTag(String data) {
if (!data.isEmpty()) {
resultString = data.substring(0, 2);
}
return resultString;
}
/**
* 去除String字符中所有的空白符
*/
public static String getTrimData(String data) {
if (!data.isEmpty()) {
resultTrimData = data.replaceAll("\\s*", "");
}
return resultTrimData;
}
/**
* byte[]转变为16进制String字符, 每个字节2位, 不足补0
*/
public static String getStringByBytes(byte[] bytes) {
String result = null;
String hex = null;
if (bytes != null && bytes.length > 0) {
final StringBuilder stringBuilder = new StringBuilder(bytes.length);
for (byte byteChar : bytes) {
hex = Integer.toHexString(byteChar & 0xFF);
if (hex.length() == 1) {
hex = '0' + hex;
}
stringBuilder.append(hex.toUpperCase());
}
result = stringBuilder.toString();
}
return result;
}
/**
* 把16进制String字符转变为byte[]
*/
public static byte[] getBytesByString(String data) {
byte[] bytes = null;
if (data != null) {
data = data.toUpperCase();
int length = data.length() / 2;
char[] dataChars = data.toCharArray();
bytes = new byte[length];
for (int i = 0; i < length; i++) {
int pos = i * 2;
bytes[i] = (byte) (charToByte(dataChars[pos]) << 4 | charToByte(dataChars[pos + 1]));
}
}
return bytes;
}
/**
* 取得在16进制字符串中各char所代表的16进制数
*/
private static byte charToByte(char c) {
return (byte) "0123456789ABCDEF".indexOf(c);
}
/**
* 方法介绍
*/
public static void helpInfo() {
System.out.println("十进制转成十六进制: Integer.toHexString(int i) ");
System.out.println("十六进制转成十进制: Integer.valueOf('FFFF',16).toString() ");
}
/**
* 根据传入的两个double类型的时间戳, 后者比较大, 算出他们之间隔了多少小时
*/
public static double getHours(double date1, double date2) {
double hours = (date2 - date1) / (1000 * 60 * 60);
hours = Double.parseDouble(df.format(hours));
// hours = Math.round((hours * 100) / 100);
return hours;
}
/**
* 根据 步数(步), 身高(厘米), 体重(千克), 时间(小时)算出消耗的能量KCal(千卡) kcal = 体重 * 时间 * 指数(k) k
* = 30 / 速度( N分钟 / 400米) = 30 / 多少分钟400米
*/
public static double getKCal(int step, double height, double weight,
double time) {
double kcal = 0;
// 步幅 = 身高 * 0.45 (米)
double stride = (double) (height * 0.45 / 100);
// 速度 = 时间(分钟) / (步幅 * 步数(米) / 400)
double speed = (time * 60) / (stride * step / 400);
// 指数 = 30 / 速度(分钟/400米)
double k = 30 / speed;
kcal = weight * time * k;
kcal = Double.valueOf(df.format(kcal));
return kcal;
}
/**
*
* 根据 步数(步), 身高(厘米),步幅(厘米),体重(千克), 时间(小时)算出消耗的能量KCal(千卡) kcal = 体重 * 时间 * 指数(k) k
* = 30 / 速度( N分钟 / 400米) = 30 / 多少分钟400米
* @param step
* @param height
* @param stride
* @param weight
* @param time
* @return
*/
public static double getKCal(int step, double height, double stride,
double weight, double time) {
double kcal = 0;
// 步幅 = 身高 * 0.45 (米)
// double stride = (double) (height * 0.45 / 100);
// 速度 = 时间(分钟) / (步幅 * 步数(米) / 400)
double speed = (time * 60) / (stride * step / 400);
// 指数 = 30 / 速度(分钟/400米)
double k = 30 / speed;
kcal = weight * time * k;
kcal = Double.valueOf(df.format(kcal));
return kcal;
}
/**
* 根据传过来的时间String转成毫秒级的时间数据double型 数据格式可能为2:00:25或者01:25
*/
public static long getMillsTime(String time) {
long hh, mm, ss;
int l = time.length();
if (l <= 5 && l > 0) {
hh = 0;
mm = Long.valueOf(time.substring(0, 2));
ss = Long.valueOf(time.substring(3, 5));
return (mm * 60 + ss) * 1000;
} else if (l == 7) {
hh = Long.valueOf(time.substring(0, 1));
mm = Long.valueOf(time.substring(2, 4));
ss = Long.valueOf(time.substring(5, 7));
return (hh * 60 * 60 + mm * 60 + ss) * 1000;
} else if (l == 8) {
hh = Long.valueOf(time.substring(0, 2));
mm = Long.valueOf(time.substring(3, 5));
ss = Long.valueOf(time.substring(6, 8));
return (hh * 60 * 60 + mm * 60 + ss) * 1000;
} else {
return 0;
}
}
/**
* 根据传入的耗秒数, 转换成为HH:MM:SS的字符串返回
*/
public static String getHHMMSS(long time) {
String hhmmss = "00:00:00";
StringBuffer bf = new StringBuffer();
long hh = time / 1000 / 60 / 60;
long mm = (time % (1000 * 60 * 60)) / 1000 / 60;
long ss = ((time % (1000 * 60 * 60)) % (1000 * 60)) / 1000;
if (hh < 0) {
bf.append("00:");
} else if (hh < 10) {
bf.append("0" + hh + ":");
} else {
bf.append(hh + ":");
}
if (mm < 0) {
bf.append("00:");
} else if (mm < 10) {
bf.append("0" + mm + ":");
} else {
bf.append(mm + ":");
}
if (ss < 0) {
bf.append("00");
} else if (ss < 10) {
bf.append("0" + ss);
} else {
bf.append(ss);
}
hhmmss = bf.toString();
System.out.println(hhmmss);
return hhmmss;
}
/**
* 根据传入的时间mills和距离(千米)得出速度
*/
public static double getSpeed(double mills, double dist) {
double hours = 0;
hours = (Double) (mills * 0.001 / 60 / 60);
if (hours == 0) {
return 0;
}
double speed = dist / hours;
speed = Double.valueOf(df.format(speed));
// hours = double.valueOf(df.format(hours));
return speed;
}
/**
* 根据用户传入的身高与步数, 返回用户步行的里程
*/
public static String getDisc(String height, String stepCount) {
String dist = "0";
double distance_dou = Double.valueOf(stepCount)
* Double.valueOf(height) * 0.45 * 0.01 * 0.001;
String distance_str = df.format(distance_dou);
return distance_str;
}
/**
* 根据传入的当前步数与目标步数，计算完成的百分比
*/
public static String getPercent(String currentStep, String targetStep) {
double percent = Double.valueOf(currentStep)
/ Double.valueOf(targetStep) * 100;
return df.format(percent);
}
/**
* 根据传入的提醒类型和电话号码，返回字节数组
*
* @param remindType
* 提醒类型
* @param phoneNumber
* 电话号码
* @return
*/
public static byte[] getBytesForRemind(String remindType, String phoneNumber) {
StringBuffer remindStr = new StringBuffer();
// 提醒的类型
String type = Integer.toHexString(Integer.parseInt(remindType, 2));
// 电话号码的位数
String length = Integer.toHexString(phoneNumber.length());
remindStr.append("F1");
remindStr.append(type);
remindStr.append("000");
remindStr.append(length.toUpperCase());
// 对座机、手机号码的处理
phoneNumber = (phoneNumber.length() % 2) == 0 ? phoneNumber
: phoneNumber + "0";
remindStr.append(phoneNumber);
System.out.println("提示数据协议：" + remindStr.toString());
return getBytesByString(remindStr.toString());
}
/**
* 传入未接电话和未读短信数
*
* @param calls
* 未接电话数
* @param sms
* 未读短信数
* @return 发出信号所需的字节数组
*/
public static byte[] getSMS_CALL_Count(int calls, int sms) {
StringBuffer sb = new StringBuffer();
String missCall = Integer.toHexString(calls);
String unReadSMS = Integer.toHexString(sms);
sb.append("FA");
// 拼未接电话数
if (missCall.length() == 1) {
sb.append("000");
sb.append(missCall);
} else if (missCall.length() == 2) {
sb.append("00");
sb.append(missCall);
} else if (missCall.length() == 3) {
sb.append("0");
sb.append(missCall);
} else if (missCall.length() == 4) {
sb.append(missCall);
}
// 拼未读短信数
if (unReadSMS.length() == 1) {
sb.append("000");
sb.append(unReadSMS);
} else if (unReadSMS.length() == 2) {
sb.append("00");
sb.append(unReadSMS);
} else if (unReadSMS.length() == 3) {
sb.append("0");
sb.append(unReadSMS);
} else if (unReadSMS.length() == 4) {
sb.append(unReadSMS);
}
sb.append("000000");
System.out.println("未接电话和未读短信协议：" + sb.toString());
return getBytesByString(sb.toString());
}
/**
* 根据传入的2个字节4位16进制字符比如FFFF, 计算返回int类型的绝对值
*/
public static int hexStringX2bytesToInt(String hexString) {
return binaryString2int(hexString2binaryString(hexString));
}
/**
* 16进制转换为2进制
*/
public static String hexString2binaryString(String hexString) {
if (hexString == null || hexString.length() % 2 != 0) {
return null;
}
String bString = "", tmp;
for (int i = 0; i < hexString.length(); i++) {
tmp = "0000"
+ Integer.toBinaryString(Integer.parseInt(
hexString.substring(i, i + 1), 16));
bString += tmp.substring(tmp.length() - 4);
}
return bString;
}
/**
* 二进制转为10进制 返回int
*/
public static int binaryString2int(String binarysString) {
if (binarysString == null || binarysString.length() % 8 != 0) {
return 0;
}
int result = Integer.valueOf(binarysString, 2);
if ("1".equals(binarysString.substring(0, 1))) {
System.out.println("这是个负数");
char[] values = binarysString.toCharArray();
for (int i = 0; i < values.length; i++) {
if (values[i] == '1') {
values[i] = '0';
} else {
values[i] = '1';
}
}
binarysString = String.valueOf(values);
result = Integer.valueOf(binarysString, 2) + 1;
}
return result;
}
/**
*
* 二进制转为16进制
*/
public static String binaryString2hexString(String bString) {
if (bString == null || bString.equals("") || bString.length() % 8 != 0) {
return null;
}
StringBuffer tmp = new StringBuffer();
int iTmp = 0;
for (int i = 0; i < bString.length(); i += 4) {
iTmp = 0;
for (int j = 0; j < 4; j++) {
iTmp += Integer.parseInt(bString.substring(i + j, i + j + 1)) << (4 - j - 1);
}
tmp.append(Integer.toHexString(iTmp));
}
return tmp.toString();
}
/**
* 根据传入的X, Y, Z 算出 x平方 + y平方 + c 平方 的平方根值
*/
public static int getXYZsquareRoot(int x, int y, int z) {
return (int) Math.sqrt(x * x + y * y + z * z);
}
/**
* 取当前的时间, 返回int型的小时, 比如 23:59:59 返回 23的int
*/
public static int getCurrentHour() {
Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
return hour;
}
/**
* 取得当前的分钟数
* @return
*/
public static int getCurrentMinute() {
Calendar c = Calendar.getInstance();
int minute = c.get(Calendar.MINUTE);
return minute;
}
/**
* 取得当前的秒数
*/
public static int getCurrentSecond() {
Calendar c = Calendar.getInstance();
int minute = c.get(Calendar.SECOND);
return minute;
}
/**
* 传入天气及温度的String, 返回协议的bytes[]
*/
public static byte[] getWeatherInfo(String weather, String temp) {
Map<String, String> weatherMap = new HashMap<String, String>();
weatherMap.put("晴", "01");
weatherMap.put("阴", "02");
weatherMap.put("多云", "03");
weatherMap.put("小雨", "04");
weatherMap.put("中雨", "05");
weatherMap.put("小到中雨", "05");
weatherMap.put("大雨", "06");
weatherMap.put("中到大雨", "06");
weatherMap.put("雷阵雨", "07");
weatherMap.put("阵雨", "07");
weatherMap.put("暴雨", "07");
weatherMap.put("大暴雨", "07");
weatherMap.put("特大暴雨", "07");
weatherMap.put("大到暴雨", "07");
weatherMap.put("暴雨到大暴雨", "07");
weatherMap.put("暴雨到特大暴雨", "07");
weatherMap.put("小雪", "08");
weatherMap.put("中雪", "09");
weatherMap.put("小到中雪", "09");
weatherMap.put("大雪", "0A");
weatherMap.put("阵雪", "0A");
weatherMap.put("暴雪", "0A");
weatherMap.put("中到大雪", "0A");
weatherMap.put("大到暴雪", "0A");
weatherMap.put("雨夹雪", "0B");
weatherMap.put("雾", "0C");
weatherMap.put("冰雹", "0D");
weatherMap.put("冻雨", "0D");
weatherMap.put("雷阵雨伴有冰雹", "0E");
weatherMap.put("尘埃", "0F");
weatherMap.put("沙尘暴", "0F");
weatherMap.put("浮尘", "0F");
weatherMap.put("扬沙", "0F");
weatherMap.put("强沙尘暴", "0F");
weatherMap.put("霾", "0F");
weatherMap.put("热带风暴", "10");
weatherMap.put("风", "11");
weatherMap.put("大风", "12");
weatherMap.put("狂风", "13");
weatherMap.put("龙卷风", "14");
weatherMap.put("雷暴", "15");
weatherMap.put("猛烈雷暴", "16");
byte[] bytes = null;
StringBuilder sb = new StringBuilder();
sb.append("F2");
// 天气
String weatherCode = weatherMap.get(weather);
if (weatherCode != null) {
sb.append(weatherCode);
} else {
sb.append("03");
}
// System.out.println("收到的天气是 : " + weather + ", 其转换为代码是 : " +
// weatherCode
// + "测试天气 : " + weatherMap.get("阵雨"));
// 温度单位
Integer intTemp = Integer.valueOf(temp, 10);
if (intTemp < 0) {
sb.append("40");
} else {
sb.append("C0");
}
// 温度值
String hexTemp = Integer.toHexString(Math.abs(intTemp)).toString();
sb.append(hexTemp);
// 不足补零
sb.append("00000000");
// System.out.println("send weather info : " + sb.toString());
return getBytesByString(sb.toString());
}
/**
* 根据传入的数，计算返回整百值
* 如传入156，返回200
* @param snore_count
* @return
*/
public static int getMaxbySnorecount(int snore_count){
String str = (snore_count + "");
int length = str.length();
if (length < 3) {
return 100;
} else {
str = str.substring(0, length - 2);
int max = (Integer.parseInt(str) + 1) * 100;
System.out.println("转换后的max:" + max);
return max;
}
}
}
快速搜索，快速连接，超低功耗保持连接和传输数据
弱点：
数据传输速率低
背景：
Android 4.3才开始支持BLE API
穿戴设备发展
BLE的构成
Service
Characteristic（接收的 特性的 UUID）
Descriptor（数据到蓝牙的 特性 的UUID）
这三部分都由UUID作为唯一标示符。
public static String MYCJ_BLE = "0000ffe1-0000-1000-8000-00805f9b34fb";
public static String MYCJ_BLE_READ = "0000fff1-0000-1000-8000-00805f9b34fb";
public static String MYCJ_BLE_WRITE = "0000fff2-0000-1000-8000-00805f9b34fb";
一个蓝牙4.0的终端可以包含多个Service，一个Service可以包含多个Characteristic，一个Characteristic包含一个Value和多个Descriptor，一个Descriptor包含一个Value
计算卡路里的消耗：
根据 步数(步), 身高(厘米), 体重(千克), 时间(小时)算出消耗的能量KCal(千卡) kcal = 体重 * 时间 * 指数(k) k= 30 / 速度( N分钟 / 400米) = 30 / 多少分钟400米
根据用户传入的身高与步数, 返回用户步行的里程
根据传入的当前步数与目标步数，计算完成的百分比
天气预报
传入天气及温度的String, 返回协议的bytes[]
通过温度湿度的传感器，进行天气的预警
package com.example.mybletestdemo;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Map;
import java.util.HashMap;
/**
* 数据转换工具类
* @author Administrator
*
*/
public class DataUtil {
private static StringBuffer sbTime;
private static String now, year, month, day, hour, min, ss;
private static SimpleDateFormat sdf = new SimpleDateFormat(
"yyyyMMddHHmmssSSS");
private static String resultString = null;
private static String resultTrimData = null;
public static DecimalFormat df = new DecimalFormat("0.00");
public DataUtil() {
}
/**
* 时间同步 取得当前的时间, 并转为需要的格式: 16进制String并以F4开头
*/
public static String getTimeFormat() {
sbTime = new StringBuffer();
now = null;
now = sdf.format(new Date());
year = Integer
.toHexString(Integer.parseInt(now.substring(0, 4)) - 1900);
now.substring(4, 6);
month = Integer.toHexString(Integer.parseInt(now.substring(4, 6)));
if (month.length() == 1)
month = '0' + month;
day = Integer.toHexString(Integer.parseInt(now.substring(6, 8)));
if (day.length() == 1)
day = '0' + day;
hour = Integer.toHexString(Integer.parseInt(now.substring(8, 10)));
if (hour.length() == 1)
hour = '0' + hour;
min = Integer.toHexString(Integer.parseInt(now.substring(10, 12)));
if (min.length() == 1)
min = '0' + min;
ss = Integer.toHexString(Integer.parseInt(now.substring(12, 14)));
if (ss.length() == 1)
ss = '0' + ss;
sbTime.append("F4");
sbTime.append(year);
sbTime.append(month);
sbTime.append(day);
sbTime.append(hour);
sbTime.append(min);
sbTime.append(ss);
sbTime.append("00");
now = sbTime.toString().toUpperCase();
return now;
}
/**
* 取得String字符的前两位
*/
public static String getTag(String data) {
if (!data.isEmpty()) {
resultString = data.substring(0, 2);
}
return resultString;
}
/**
* 去除String字符中所有的空白符
*/
public static String getTrimData(String data) {
if (!data.isEmpty()) {
resultTrimData = data.replaceAll("\\s*", "");
}
return resultTrimData;
}
/**
* byte[]转变为16进制String字符, 每个字节2位, 不足补0
*/
public static String getStringByBytes(byte[] bytes) {
String result = null;
String hex = null;
if (bytes != null && bytes.length > 0) {
final StringBuilder stringBuilder = new StringBuilder(bytes.length);
for (byte byteChar : bytes) {
hex = Integer.toHexString(byteChar & 0xFF);
if (hex.length() == 1) {
hex = '0' + hex;
}
stringBuilder.append(hex.toUpperCase());
}
result = stringBuilder.toString();
}
return result;
}
/**
* 把16进制String字符转变为byte[]
*/
public static byte[] getBytesByString(String data) {
byte[] bytes = null;
if (data != null) {
data = data.toUpperCase();
int length = data.length() / 2;
char[] dataChars = data.toCharArray();
bytes = new byte[length];
for (int i = 0; i < length; i++) {
int pos = i * 2;
bytes[i] = (byte) (charToByte(dataChars[pos]) << 4 | charToByte(dataChars[pos + 1]));
}
}
return bytes;
}
/**
* 取得在16进制字符串中各char所代表的16进制数
*/
private static byte charToByte(char c) {
return (byte) "0123456789ABCDEF".indexOf(c);
}
/**
* 方法介绍
*/
public static void helpInfo() {
System.out.println("十进制转成十六进制: Integer.toHexString(int i) ");
System.out.println("十六进制转成十进制: Integer.valueOf('FFFF',16).toString() ");
}
/**
* 根据传入的两个double类型的时间戳, 后者比较大, 算出他们之间隔了多少小时
*/
public static double getHours(double date1, double date2) {
double hours = (date2 - date1) / (1000 * 60 * 60);
hours = Double.parseDouble(df.format(hours));
// hours = Math.round((hours * 100) / 100);
return hours;
}
/**
* 根据 步数(步), 身高(厘米), 体重(千克), 时间(小时)算出消耗的能量KCal(千卡) kcal = 体重 * 时间 * 指数(k) k
* = 30 / 速度( N分钟 / 400米) = 30 / 多少分钟400米
*/
public static double getKCal(int step, double height, double weight,
double time) {
double kcal = 0;
// 步幅 = 身高 * 0.45 (米)
double stride = (double) (height * 0.45 / 100);
// 速度 = 时间(分钟) / (步幅 * 步数(米) / 400)
double speed = (time * 60) / (stride * step / 400);
// 指数 = 30 / 速度(分钟/400米)
double k = 30 / speed;
kcal = weight * time * k;
kcal = Double.valueOf(df.format(kcal));
return kcal;
}
/**
*
* 根据 步数(步), 身高(厘米),步幅(厘米),体重(千克), 时间(小时)算出消耗的能量KCal(千卡) kcal = 体重 * 时间 * 指数(k) k
* = 30 / 速度( N分钟 / 400米) = 30 / 多少分钟400米
* @param step
* @param height
* @param stride
* @param weight
* @param time
* @return
*/
public static double getKCal(int step, double height, double stride,
double weight, double time) {
double kcal = 0;
// 步幅 = 身高 * 0.45 (米)
// double stride = (double) (height * 0.45 / 100);
// 速度 = 时间(分钟) / (步幅 * 步数(米) / 400)
double speed = (time * 60) / (stride * step / 400);
// 指数 = 30 / 速度(分钟/400米)
double k = 30 / speed;
kcal = weight * time * k;
kcal = Double.valueOf(df.format(kcal));
return kcal;
}
/**
* 根据传过来的时间String转成毫秒级的时间数据double型 数据格式可能为2:00:25或者01:25
*/
public static long getMillsTime(String time) {
long hh, mm, ss;
int l = time.length();
if (l <= 5 && l > 0) {
hh = 0;
mm = Long.valueOf(time.substring(0, 2));
ss = Long.valueOf(time.substring(3, 5));
return (mm * 60 + ss) * 1000;
} else if (l == 7) {
hh = Long.valueOf(time.substring(0, 1));
mm = Long.valueOf(time.substring(2, 4));
ss = Long.valueOf(time.substring(5, 7));
return (hh * 60 * 60 + mm * 60 + ss) * 1000;
} else if (l == 8) {
hh = Long.valueOf(time.substring(0, 2));
mm = Long.valueOf(time.substring(3, 5));
ss = Long.valueOf(time.substring(6, 8));
return (hh * 60 * 60 + mm * 60 + ss) * 1000;
} else {
return 0;
}
}
/**
* 根据传入的耗秒数, 转换成为HH:MM:SS的字符串返回
*/
public static String getHHMMSS(long time) {
String hhmmss = "00:00:00";
StringBuffer bf = new StringBuffer();
long hh = time / 1000 / 60 / 60;
long mm = (time % (1000 * 60 * 60)) / 1000 / 60;
long ss = ((time % (1000 * 60 * 60)) % (1000 * 60)) / 1000;
if (hh < 0) {
bf.append("00:");
} else if (hh < 10) {
bf.append("0" + hh + ":");
} else {
bf.append(hh + ":");
}
if (mm < 0) {
bf.append("00:");
} else if (mm < 10) {
bf.append("0" + mm + ":");
} else {
bf.append(mm + ":");
}
if (ss < 0) {
bf.append("00");
} else if (ss < 10) {
bf.append("0" + ss);
} else {
bf.append(ss);
}
hhmmss = bf.toString();
System.out.println(hhmmss);
return hhmmss;
}
/**
* 根据传入的时间mills和距离(千米)得出速度
*/
public static double getSpeed(double mills, double dist) {
double hours = 0;
hours = (Double) (mills * 0.001 / 60 / 60);
if (hours == 0) {
return 0;
}
double speed = dist / hours;
speed = Double.valueOf(df.format(speed));
// hours = double.valueOf(df.format(hours));
return speed;
}
/**
* 根据用户传入的身高与步数, 返回用户步行的里程
*/
public static String getDisc(String height, String stepCount) {
String dist = "0";
double distance_dou = Double.valueOf(stepCount)
* Double.valueOf(height) * 0.45 * 0.01 * 0.001;
String distance_str = df.format(distance_dou);
return distance_str;
}
/**
* 根据传入的当前步数与目标步数，计算完成的百分比
*/
public static String getPercent(String currentStep, String targetStep) {
double percent = Double.valueOf(currentStep)
/ Double.valueOf(targetStep) * 100;
return df.format(percent);
}
/**
* 根据传入的提醒类型和电话号码，返回字节数组
*
* @param remindType
* 提醒类型
* @param phoneNumber
* 电话号码
* @return
*/
public static byte[] getBytesForRemind(String remindType, String phoneNumber) {
StringBuffer remindStr = new StringBuffer();
// 提醒的类型
String type = Integer.toHexString(Integer.parseInt(remindType, 2));
// 电话号码的位数
String length = Integer.toHexString(phoneNumber.length());
remindStr.append("F1");
remindStr.append(type);
remindStr.append("000");
remindStr.append(length.toUpperCase());
// 对座机、手机号码的处理
phoneNumber = (phoneNumber.length() % 2) == 0 ? phoneNumber
: phoneNumber + "0";
remindStr.append(phoneNumber);
System.out.println("提示数据协议：" + remindStr.toString());
return getBytesByString(remindStr.toString());
}
/**
* 传入未接电话和未读短信数
*
* @param calls
* 未接电话数
* @param sms
* 未读短信数
* @return 发出信号所需的字节数组
*/
public static byte[] getSMS_CALL_Count(int calls, int sms) {
StringBuffer sb = new StringBuffer();
String missCall = Integer.toHexString(calls);
String unReadSMS = Integer.toHexString(sms);
sb.append("FA");
// 拼未接电话数
if (missCall.length() == 1) {
sb.append("000");
sb.append(missCall);
} else if (missCall.length() == 2) {
sb.append("00");
sb.append(missCall);
} else if (missCall.length() == 3) {
sb.append("0");
sb.append(missCall);
} else if (missCall.length() == 4) {
sb.append(missCall);
}
// 拼未读短信数
if (unReadSMS.length() == 1) {
sb.append("000");
sb.append(unReadSMS);
} else if (unReadSMS.length() == 2) {
sb.append("00");
sb.append(unReadSMS);
} else if (unReadSMS.length() == 3) {
sb.append("0");
sb.append(unReadSMS);
} else if (unReadSMS.length() == 4) {
sb.append(unReadSMS);
}
sb.append("000000");
System.out.println("未接电话和未读短信协议：" + sb.toString());
return getBytesByString(sb.toString());
}
/**
* 根据传入的2个字节4位16进制字符比如FFFF, 计算返回int类型的绝对值
*/
public static int hexStringX2bytesToInt(String hexString) {
return binaryString2int(hexString2binaryString(hexString));
}
/**
* 16进制转换为2进制
*/
public static String hexString2binaryString(String hexString) {
if (hexString == null || hexString.length() % 2 != 0) {
return null;
}
String bString = "", tmp;
for (int i = 0; i < hexString.length(); i++) {
tmp = "0000"
+ Integer.toBinaryString(Integer.parseInt(
hexString.substring(i, i + 1), 16));
bString += tmp.substring(tmp.length() - 4);
}
return bString;
}
/**
* 二进制转为10进制 返回int
*/
public static int binaryString2int(String binarysString) {
if (binarysString == null || binarysString.length() % 8 != 0) {
return 0;
}
int result = Integer.valueOf(binarysString, 2);
if ("1".equals(binarysString.substring(0, 1))) {
System.out.println("这是个负数");
char[] values = binarysString.toCharArray();
for (int i = 0; i < values.length; i++) {
if (values[i] == '1') {
values[i] = '0';
} else {
values[i] = '1';
}
}
binarysString = String.valueOf(values);
result = Integer.valueOf(binarysString, 2) + 1;
}
return result;
}
/**
*
* 二进制转为16进制
*/
public static String binaryString2hexString(String bString) {
if (bString == null || bString.equals("") || bString.length() % 8 != 0) {
return null;
}
StringBuffer tmp = new StringBuffer();
int iTmp = 0;
for (int i = 0; i < bString.length(); i += 4) {
iTmp = 0;
for (int j = 0; j < 4; j++) {
iTmp += Integer.parseInt(bString.substring(i + j, i + j + 1)) << (4 - j - 1);
}
tmp.append(Integer.toHexString(iTmp));
}
return tmp.toString();
}
/**
* 根据传入的X, Y, Z 算出 x平方 + y平方 + c 平方 的平方根值
*/
public static int getXYZsquareRoot(int x, int y, int z) {
return (int) Math.sqrt(x * x + y * y + z * z);
}
/**
* 取当前的时间, 返回int型的小时, 比如 23:59:59 返回 23的int
*/
public static int getCurrentHour() {
Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
return hour;
}
/**
* 取得当前的分钟数
* @return
*/
public static int getCurrentMinute() {
Calendar c = Calendar.getInstance();
int minute = c.get(Calendar.MINUTE);
return minute;
}
/**
* 取得当前的秒数
*/
public static int getCurrentSecond() {
Calendar c = Calendar.getInstance();
int minute = c.get(Calendar.SECOND);
return minute;
}
/**
* 传入天气及温度的String, 返回协议的bytes[]
*/
public static byte[] getWeatherInfo(String weather, String temp) {
Map<String, String> weatherMap = new HashMap<String, String>();
weatherMap.put("晴", "01");
weatherMap.put("阴", "02");
weatherMap.put("多云", "03");
weatherMap.put("小雨", "04");
weatherMap.put("中雨", "05");
weatherMap.put("小到中雨", "05");
weatherMap.put("大雨", "06");
weatherMap.put("中到大雨", "06");
weatherMap.put("雷阵雨", "07");
weatherMap.put("阵雨", "07");
weatherMap.put("暴雨", "07");
weatherMap.put("大暴雨", "07");
weatherMap.put("特大暴雨", "07");
weatherMap.put("大到暴雨", "07");
weatherMap.put("暴雨到大暴雨", "07");
weatherMap.put("暴雨到特大暴雨", "07");
weatherMap.put("小雪", "08");
weatherMap.put("中雪", "09");
weatherMap.put("小到中雪", "09");
weatherMap.put("大雪", "0A");
weatherMap.put("阵雪", "0A");
weatherMap.put("暴雪", "0A");
weatherMap.put("中到大雪", "0A");
weatherMap.put("大到暴雪", "0A");
weatherMap.put("雨夹雪", "0B");
weatherMap.put("雾", "0C");
weatherMap.put("冰雹", "0D");
weatherMap.put("冻雨", "0D");
weatherMap.put("雷阵雨伴有冰雹", "0E");
weatherMap.put("尘埃", "0F");
weatherMap.put("沙尘暴", "0F");
weatherMap.put("浮尘", "0F");
weatherMap.put("扬沙", "0F");
weatherMap.put("强沙尘暴", "0F");
weatherMap.put("霾", "0F");
weatherMap.put("热带风暴", "10");
weatherMap.put("风", "11");
weatherMap.put("大风", "12");
weatherMap.put("狂风", "13");
weatherMap.put("龙卷风", "14");
weatherMap.put("雷暴", "15");
weatherMap.put("猛烈雷暴", "16");
byte[] bytes = null;
StringBuilder sb = new StringBuilder();
sb.append("F2");
// 天气
String weatherCode = weatherMap.get(weather);
if (weatherCode != null) {
sb.append(weatherCode);
} else {
sb.append("03");
}
// System.out.println("收到的天气是 : " + weather + ", 其转换为代码是 : " +
// weatherCode
// + "测试天气 : " + weatherMap.get("阵雨"));
// 温度单位
Integer intTemp = Integer.valueOf(temp, 10);
if (intTemp < 0) {
sb.append("40");
} else {
sb.append("C0");
}
// 温度值
String hexTemp = Integer.toHexString(Math.abs(intTemp)).toString();
sb.append(hexTemp);
// 不足补零
sb.append("00000000");
// System.out.println("send weather info : " + sb.toString());
return getBytesByString(sb.toString());
}
/**
* 根据传入的数，计算返回整百值
* 如传入156，返回200
* @param snore_count
* @return
*/
public static int getMaxbySnorecount(int snore_count){
String str = (snore_count + "");
int length = str.length();
if (length < 3) {
return 100;
} else {
str = str.substring(0, length - 2);
int max = (Integer.parseInt(str) + 1) * 100;
System.out.println("转换后的max:" + max);
return max;
}
}
}
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