- var app = getApp()
-
Page({
-
data: {
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motto: 'Hello World',
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openBLE:'打开蓝牙设备',
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startBLEDiscovery:'初始化蓝牙设备',
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startBLEDevices:'目标定位',
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reStartSearchBLE:'重置蓝牙',
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startSearchBLE:'默认空',
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userInfo: {},
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deviceId: '',
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searchFlag:true,
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deviceRSSI:'',
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deviceName:'',
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deviceId:[],
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advertisServiceUUIDs: [],
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advertisData:[],
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canvasPointX:'',
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canvasPointY:'',
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avatarUrl:'../index/bg-image.jpg',
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showPosition:''
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},
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//事件处理函数
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bindViewTap: function() {
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wx.navigateTo({
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url: '../logs/logs'
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})
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},
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onLoad: function () {
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var that = this
-
//调用应用实例的方法获取全局数据
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//that.setData({ deviceId: opt.deviceId })
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app.getUserInfo(function(userInfo){
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//更新数据
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that.setData({
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userInfo:userInfo
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})
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//判断兼容性
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if (wx.openBluetoothAdapter) {
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//打开蓝牙适配器,如果没有打开 showtoast
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wx.openBluetoothAdapter({
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success: function(res){
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// success
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//获取本机的蓝牙适配器状态
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wx.getBluetoothAdapterState({
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success: function(res){
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// success
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that.setData({
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searchFlag:true
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})
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},
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fail: function(res) {
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// fail
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that.setData({
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searchFlag:false
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})
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},
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complete: function(res) {
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// complete
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}
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})
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},
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fail: function(res) {
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// fail 本机是否已经打开蓝牙设备
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wx.showToast({title:'请打开本机蓝牙设备,重新扫码', duration:10000 })
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},
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complete: function(res) {
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// complete
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}
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})
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} else {
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// 如果希望用户在最新版本的客户端上体验您的小程序,可以这样子提示
-
wx.showModal({
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title: '提示',
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content: '当前微信版本过低,无法使用该功能,请升级到最新微信版本后重试。'
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})
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}
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})
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},
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startBLEDevices: function(){
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var that = this
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wx.startBluetoothDevicesDiscovery({
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services: [],
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success: function(res){
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//获取本机蓝牙设备状态
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// success
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that.setData({
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showPosition:setInterval(that.devicesFunc,1000)
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})
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},
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fail: function(res) {
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// fail
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},
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complete: function(res) {
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// complete
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}
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})
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},
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// startBLEDevices: function(){
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// var that = this
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// that.setData({
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// showPosition:setInterval(that.devicesFunc,1000)
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// })
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// },
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devicesFunc: function(){
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var that = this
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wx.getBluetoothDevices({
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success: function(res){
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// console.log(res);
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var arrayRSSI = new Array();
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var arraydeviceName = new Array();
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var arraydeviceId = new Array();
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// var arrayUUIDs = new Array();
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var arrayadvertisData = new Array();
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var pointADistance = '';
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var pointBDistance = '';
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var pointCDistance = '';
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for(var i = 0; i<res.devices.length;i++){
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//console.log(res.devices[i].name);
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if(res.devices[i].name.indexOf('craft')==0){
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//console.log(res.devices[i]);
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arrayRSSI.push(res.devices[i].RSSI);
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arraydeviceName.push(res.devices[i].name);
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arraydeviceId[i]= res.devices[i].deviceId;
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arrayUUIDs[i]= res.devices[i].advertisServiceUUIDs[i];
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arrayadvertisData[i]= res.devices[i].advertisData ;
-
调用计算rssi对应距离的函数
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var iRssi = Math.abs(arrayRSSI[i]);
-
var power = (iRssi-59)/(10*2.0);
-
var mm = Math.pow(10, power);
-
console.log(arraydeviceName[i]+"距离的位置是"+mm+"米");
-
取01,02,03分别为,(2,0),(2,2),(0,2)固定坐标点,做定位
-
if(res.devices[i].name.indexOf('craft01')==0){
-
var pointARSSi = res.devices[i].RSSI ;
-
var iRssi = Math.abs(pointARSSi);
-
var power = (iRssi-55)/(10*2.0);
-
var pointADistance = Math.pow(10, power);
-
console.log("a"+pointADistance);
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console.log(pointARSSi);
-
}
-
if(res.devices[i].name.indexOf('craft02')==0){
-
var pointBRSSi = res.devices[i].RSSI;
-
var iRssi = Math.abs(pointBRSSi);
-
var power = (iRssi-55)/(10*2.0);
-
var pointBDistance = Math.pow(10, power);
-
console.log("b"+pointBDistance);
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console.log(pointBRSSi);
-
}
-
if(res.devices[i].name.indexOf('craft03')==0){
-
var pointCRSSi = res.devices[i].RSSI;
-
var iRssi = Math.abs(pointCRSSi);
-
var power = (iRssi-57)/(10*2.0);
-
var pointCDistance = Math.pow(10, power);
-
console.log("c"+pointCDistance);
-
console.log(pointCRSSi);
-
}
-
}
-
}
-
// 从 arrayRSSI 取三个距离定位点最近的ibeacon参与定位
-
if(arrayRSSI.length > 3){
-
//根据arrayRSSI进行信号强弱排序.距离越远rssi值越小
-
for(var i = 0 ; i < arrayRSSI.length ; i ++){
-
for(var j = i+1 ; j< arrayRSSI.length ; j++){
-
if(arrayRSSI[i]<arrayRSSI[j]){
-
var select = arrayRSSI[i];
-
arrayRSSI[i] = arrayRSSI[j];
-
arrayRSSI[j] = select;
-
}
-
}
-
}
-
//获取最近的三个距离
-
for(var i = 0 ; i < 3; i++){
-
if(i==0){
-
var pointARSSi = res.devices[i].RSSI ;
-
var iRssi = Math.abs(pointARSSi);
-
var power = (iRssi-55)/(10*2.0);
-
var pointADistance = Math.pow(10, power);
-
console.log("a"+pointADistance);
-
console.log(pointARSSi);
-
}
-
if(i==1){
-
var pointBRSSi = res.devices[i].RSSI;
-
var iRssi = Math.abs(pointBRSSi);
-
var power = (iRssi-55)/(10*2.0);
-
var pointBDistance = Math.pow(10, power);
-
console.log("b"+pointBDistance);
-
console.log(pointBRSSi);
-
}
-
if(i==2){
-
var pointCRSSi = res.devices[i].RSSI;
-
var iRssi = Math.abs(pointCRSSi);
-
var power = (iRssi-57)/(10*2.0);
-
var pointCDistance = Math.pow(10, power);
-
console.log("c"+pointCDistance);
-
console.log(pointCRSSi);
-
}
-
}
-
}
-
//获取定位点的x和y
-
if(!pointADistance==''&&!pointBDistance==''&&!pointCDistance==''){
-
var pointDX='';var pointDY = '';
-
var p = Math.pow(pointADistance,2)/10-Math.pow(pointBDistance,2)/10;
-
pointDX = 2.5 - p;
-
var m = Math.pow(pointADistance,2)/10-Math.pow(pointCDistance,2)/10;
-
pointDY = 2.5 - m;
-
console.log('目标所在位置X是'+pointDX);
-
console.log('目标所在位置Y是'+pointDY);
-
if(pointDX > 0 && pointDY > 0){
-
wx.showToast({title:'欢迎进入25楼craft', duration:4000 });
-
}
-
that.setData({
-
canvasPointX:pointDX,
-
canvasPointY:pointDY
-
})
-
//创建画布
-
//计算坐标点在规定canvas上的位置显示
-
var context = wx.createCanvasContext();
-
context.setStrokeStyle("#00ff00");
-
//a,b,c,d,e,f a,b起始坐标,c半径,d,e起始和终止角度
-
context.arc(that.data.canvasPointX*30,that.data.canvasPointY*30,5,0,2*Math.PI);
-
context.fill();
-
wx.drawCanvas({
-
canvasId: 'firstCanvas',
-
actions: context.getActions() // 获取绘图动作数组
-
})
-
wx.showModal({title:'X轴:'+pointDX+'Y轴:'+pointDY, duration:5000 });
-
//开始网络请求
-
wx.request({
-
url: 'http://craftww.cn/weixinIbeacon/index.php',
-
data: {},
-
method: 'GET', // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT
-
// header: {}, // 设置请求的 header
-
success: function(res){
-
// success
-
},
-
fail: function(res) {
-
// fail
-
},
-
complete: function(res) {
-
// complete
-
}
-
})
-
}else{
-
wx.showToast({title:'正在搜索...', duration:1000 })
-
开始网络请求
-
wx.request({
-
url: 'http://craftww.cn/weixinIbeacon/index.php',
-
data: {},
-
method: 'GET', // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT
-
// header: {}, // 设置请求的 header
-
success: function(res){
-
// success
-
},
-
fail: function(res) {
-
// fail
-
},
-
complete: function(res) {
-
// complete
-
}
-
})
-
}
-
},
-
fail: function(res) {
-
// fail
-
},
-
complete: function(res) {
-
// complete
-
}
-
})
-
} ,
-
//动态显示
-
createList: function(thisName){
-
var that = this
-
that.setData({
-
array:[{deviceDistance:"1"},{deviceDistance:"1"},{deviceDistance:"1"},{deviceDistance:"1"},{deviceDistance:"1"}]
-
})
-
},
-
reStartSearchBLE: function(){
-
var that = this
-
//清除本地数据缓存
-
wx.stopBluetoothDevicesDiscovery({
-
success: function(res){
-
// success
-
},
-
fail: function(res) {
-
// fail
-
},
-
complete: function(res) {
-
// complete
-
}
-
})
-
wx.clearStorageSync();
-
clearInterval(that.data.showPosition);
-
console.log(that.data.showPosition);
-
// that.context.clearRect(0,0,canvas.width,canvas.height);
-
//断开蓝牙
-
var that = this
-
wx.closeBluetoothAdapter({
-
success: function(res){
-
// success
-
console.log('重置成功');
-
//打开蓝牙适配器,如果没有打开 showtoast
-
wx.openBluetoothAdapter({
-
success: function(res){
-
// success
-
//获取本机的蓝牙适配器状态
-
wx.getBluetoothAdapterState({
-
success: function(res){
-
// success
-
},
-
fail: function(res) {
-
// fail
-
},
-
complete: function(res) {
-
// complete
-
}
-
})
-
},
-
fail: function(res) {
-
},
-
complete: function(res) {
-
// complete
-
}
-
})
-
},
-
fail: function(res) {
-
// fail
-
},
-
complete: function(res) {
-
// complete
-
}
-
})
-
}
-
//zheli
-
})