TMRAppBle/script/ble.js

"use strict";
/*初始化蓝牙适配器*/
function initManager(param) {
    ble.initManager(param, function (ret) {
        if (ret.state === "poweredOn") {
            scan({clean: true});
        } else if (ret.state === 'poweredOff') {
            api.hideProgress();
            mui.alert('检查蓝牙是否打开');
            document.getElementById('text').innerHTML = '检查蓝牙是否打开';
        }
    });
}

var times = 5;
var sta = true;
var scanInter;
/*开始扫描*/
function scan(param) {
    if (!uuid){
        uuid = api.getPrefs({
            sync: true,
            key: 'uuid'
        });
    }
    if (uuid){
        isConnected({peripheralUUID: uuid},function(ret){
            console.log("isConnected"+ret);
            if(ret){
                disconnect({peripheralUUID: uuid});
            }
        })
    }
    clearInterval(scanInter)
    times = 5;
    ble.scan(param, function (ret) {
        if (ret.status) {
            scanInter = setInterval(function (){
                if (times>0){
                    times --;
                    var wifiDom = document.getElementById('wifiDom');
                    wifiDom.innerHTML = "扫描中"+times;
                    api.showProgress({
                        title: '扫描中'+times+'...',
                        modal: true
                    });
                }else {
                    stopScan()
                    clearInterval(scanInter)
                    getPeripheral();
                }
            },1000)
        }
    });
}

var weightBeforefix = '1';

function stopScan(){
    ble.stopScan()
}

/*获取扫描结果*/
function getPeripheral() {
    ble.getPeripheral(function (ret) {
        bleData = []
        var ret2 = {};
        var wifiDom = document.getElementById('wifiDom');
        if (ret.peripherals.length > 0) {
            ret.peripherals.forEach(function (p) {
                if (undefined !== p.name) {
                    console.log(p.name);
                    if (p.name.indexOf("TMR_BLE") === -1){
                        return false
                    }else{
                        mui.toast("已扫描到" +p.name,{duration:3500,type:'div'});
                        wifiDom.innerHTML = p.name+'(未连接)';
                        document.getElementById('showBlePicker').setAttribute("class", 'btnc mui-btn-inline mui-btn-primary');
                        var json = { value: p.uuid, text: p.name };
                        bleData.push(json);
                        if (!uuid){
                            uuid = api.getPrefs({
                                sync: true,
                                key: 'uuid'
                            });
                        }
                        if (uuid && uuid === p.uuid){
                            document.getElementById('showBlePicker').innerHTML = p.name
                            isConnected({peripheralUUID: uuid},function(ret){
                                console.log("isConnected"+ret);
                                if(ret){
                                    disconnect({peripheralUUID: uuid});
                                    connect({peripheralUUID: uuid});
                                }else{
                                    connect({peripheralUUID: uuid});
                                }
                            })
                        }
                    }
                }
            });
            if(!bleData.length>0){
                mui.toast("暂未扫描到蓝牙设备",{duration:3500,type:'div'});
                document.getElementById('showBlePicker').setAttribute("class", 'btnc mui-btn-inline mui-btn-primary dis');
                wifiDom.innerHTML = "重新扫描";
            }else{
                bleInit()
            }
        }
        api.hideProgress();
    });
}
// 连接失败次数
var connectTimes=0;
/*开始连接*/
function connect(param) {
    var wifiDom = document.getElementById('wifiDom');
    wifiDom.innerHTML = "";
    api.showProgress({
        title: '蓝牙连接中...',
        modal: true
    });
    ble.connect(param, function (ret, err) {
        if (ret.status) {
            connetcedStatus = true
            // 缓存蓝牙设备uuid方便自动连接
            api.setPrefs({
                key: 'uuid',
                value: param.peripheralUUID
            });
            wifiDom.innerHTML = '已连接';
            connectTimes = 0;
            document.getElementById('text').innerHTML = '设备已连接';
            text = '设备已连接';
            console.log('主机端连接成功')
            ble.setMtu({
                peripheralUUID: param.peripheralUUID,
                mtu:120
            },function(ret){
                if(ret.status){
                    initWeight();
                    discoverService({peripheralUUID: param.peripheralUUID});
                }else{
                    mui.alert(ret.code)
                }
            });
        }else {
            connetcedStatus = false
            connectTimes ++;
            console.log('主机端连接失败'+connectTimes+' '+uuid)
            addNotice(sbId + '主机端连接失败'+connectTimes+'次 '+uuid);
            wifiDom.innerHTML = '连接失败';
            api.hideProgress();
            setTimeout(function (){
                if (!connetcedStatus && uuid){
                    console.log("连接失败！尝试重连" + uuid);
                    wifiDom.innerHTML = '尝试重连';
                    connect({peripheralUUID: uuid});
                }
            },3000)
        }
    });
}
/*断开连接*/
function disconnect(param) {
    ble.disconnect(param, function (ret, err) {
        if (ret.status) {
            console.log("断开连接成功！");
        } else {
            console.log("断开连接失败！");
        }
    });
}
/*判断是否已连接*/
function isConnected(param,callback){
    ble.isConnected(param, function(ret) {
        if (ret.status) {
            console.log('已连接');
        }
        callback(ret.status)
    });
}

var i;
// 蓝牙uuid
var peripheralUUID =''
// 蓝牙服务id
var serviceUUID =''
// 蓝牙特征id
var characteristicUUID =''
// 蓝牙待发送消息列表
var msgList = [];
var timerMsgList = null;
// 清除消息定时任务
clearInterval(timerMsgList)
/*蓝牙消息发送定时任务150ms*/
timerMsgList = setInterval(function(){
    // console.log(new Date().getSeconds()+ ' ' + new Date().getMilliseconds() +' ' + msgList.length)
    if (msgList.length > 0) {
        // 发送报文
        var msg = msgList[0];
        msgList.splice(0, 1);
        var param1 = {
            peripheralUUID: peripheralUUID,
            serviceUUID: serviceUUID,
            characteristicUUID: characteristicUUID,
            value: msg,
            writeType:'withoutResponse'
        };
        if(connetcedStatus && peripheralUUID && serviceUUID && characteristicUUID){
            writeValueForCharacteristic(param1, function (ret) {
                // console.log(ret.status)
            });
        }
    }
},150)

// 未装料状态计数，采集达到10次，发送一次停止蜂鸣指令
var bleConunt=0;
// 默认不自动跳转
var allowAuto = false;
/*扫描蓝牙服务*/
function discoverService(param) {
    ble.discoverService(param, function (ret) {
        if (ret.services.length > 0) {
            // console.log("发现服务成功！");
            ret.services.forEach(function (ret4) {
                if (ret4.indexOf("0000ffe") !== -1) {
                    if (ret4 && ret4.length > 0) {
                        //发现特征
                        discoverCharacteristics({
                            serviceUUID: ret4,
                            peripheralUUID: param.peripheralUUID
                        }, function (ret5) {
                            if(ret5.indexOf("0000ffe2")!==-1){
                                return false
                            }
                            console.log(ret5)
                            peripheralUUID = param.peripheralUUID;
                            serviceUUID =ret4;
                            characteristicUUID =ret5;
                            //监听消息
                            setNotify({
                                peripheralUUID: param.peripheralUUID,
                                serviceUUID: ret4,
                                characteristicUUID: ret5
                            }, function (ret6) {
                                if (ret6 !== undefined) {
                                    if (isNaN(ret6)) {
                                        return false
                                    }
                                    nowWeight = ret6;
                                    getMess({
                                        peripheralUUID: param.peripheralUUID,
                                        serviceUUID: ret4,
                                        characteristicUUID: ret5,
                                        value: ret6
                                    }, function (ret7) {
                                    });
                                    // 装料状态
                                    if((feedStatus && allowAuto) || weightBeforefix ==='1' ){
                                        if (first) {
                                            first = false;
                                            beforeWeight = nowWeight;
                                        }
                                        if (load) {
                                            _feedNum = nowWeight - beforeWeight;
                                        } else {
                                            _feedNum = beforeWeight - nowWeight;
                                        }
                                        text = feedName + _planSum;
                                        if (!isNaN(nowWeight)) {
                                            // 实时重量保存
                                            totalList.push({
                                                time: currTimeFn(new Date()),
                                                nowWeight: nowWeight
                                            });
                                        }
                                        document.getElementById('feedNum').innerHTML = '<font style="color:blue">:' + _planSum + '</font>/<font style="color:green">已装:' + _feedNum + '</font>';
                                    }
                                    // 装料状态
                                    if((feedStatus && allowAuto) || weightBeforefix === '1'){
                                        // 计划-饲喂
                                        var feedErr = _planSum-_feedNum;
                                        if (isNaN(feedErr)) {
                                            return false
                                        }
                                        // 蜂鸣器校验基础值，大于500的饲料，取500为标准
                                        var count;
                                        if (_planSum >= 500) {
                                            count = 500
                                        } else {
                                            count = _planSum
                                        }
                                        // 计算饲料装料量与基础值的误差比例
                                        var ration = feedErr / count;
                                        // console.log("ration" + ration.toFixed(2));
                                        // 误差分为100%-20%(停止蜂鸣)，10%-20%(间隔05)，5%-10%(间隔03),2%-5%(间隔01),-100%-2%(长鸣)
                                        if (ration > 0.2) {
                                            bleConunt ++;
                                            if (statusEle || (bleConunt >= 10)) {
                                                bleConunt=0;
                                                ledStatus = false;
                                                status = '';
                                                statusEle = false;
                                                msgList = [];
                                                control("00", "00");
                                                setTimeout(function () {
                                                    ledStatus = true;
                                                }, 500);
                                            }
                                        } else if (0.1 < ration && ration <= 0.2) {
                                            time = "05";
                                            if (!statusEle || lastTime !== time) {
                                                lastTime = time;
                                                ledStatus = false;
                                                status = '间隔';
                                                statusEle = true;
                                                msgList = [];
                                                console.log("开始蜂鸣" + time);
                                                control("60", time);
                                                setTimeout(function () {
                                                    ledStatus = true;
                                                }, 500);
                                            }
                                        } else if (0.05 < ration && ration <= 0.1) {
                                            time = "03";
                                            if (!statusEle || lastTime !== time) {
                                                lastTime = time;
                                                ledStatus = false;
                                                status = '间隔';
                                                statusEle = true;
                                                msgList = [];
                                                console.log("开始蜂鸣" + time);
                                                control("60", time);
                                                setTimeout(function () {
                                                    ledStatus = true;
                                                }, 500);
                                            }
                                        } else if (0.02 < ration && ration <= 0.05) {
                                            time = "01";
                                            if (!statusEle || lastTime !== time) {
                                                lastTime = time;
                                                ledStatus = false;
                                                status = '间隔';
                                                statusEle = true;
                                                msgList = [];
                                                console.log("开始蜂鸣" + time);
                                                control("60", time);
                                                setTimeout(function () {
                                                    ledStatus = true;
                                                }, 500);
                                            }
                                        } else {
                                            if (status === '间隔' || status === '') {
                                                ledStatus = false;
                                                status = '长鸣';
                                                statusEle = true;
                                                msgList = [];
                                                console.log("开始长鸣");
                                                control("40", "02");
                                                setTimeout(function () {
                                                    ledStatus = true;
                                                }, 500);

                                                setTimeout(function() {
                                                    console.log("开始长鸣")
                                                    control("40", "02");
                                                    setTimeout(function() {
                                                        ledStatus = true;
                                                    }, 500)
                                                }, 500)
                                            }
                                        }
                                        // console.log(weightStabilization("weightStabilization"+nowWeight))
                                        // 在误差范围内
                                        if (feedErr <= allow && (allowAuto || weightBeforefix === '1')) {
                                            // 重量稳定计数
                                            var filteredValue = weightDataFilter.filter(nowWeight);
                                            // 重量稳定自动跳转
                                            if (weightDataFilter.dataBuffer.length === weightSize) {
                                                console.log("重量稳定", currTimeFn(new Date()));
                                                weightDataFilter.dataBuffer = []
                                                document.getElementById('submitData').click();
                                            }
                                        }
                                    }
                                }
                            });
                        });
                    }

                }
            });
        } else {
            console.log("发现服务失败！");
        }
    });
}
/*扫描特征*/
function discoverCharacteristics(param, callback) {
    ble.discoverCharacteristics(param, function (ret) {
        var res = '';
        if (ret.characteristics.length > 0) {
            // console.log("发现特征成功！");
            ret.characteristics.forEach(function (s) {
                if (s.serviceUUID === param.serviceUUID) {
                    callback(s.uuid);
                }
            });
        } else {
            console.log("发现特征失败！");
            callback(res);
        }
    });
}
/*适配两种称数据解析*/
function StringToNum(hexx){
    var hex = hexx.toString(); //force conversion
    var str = '';
    var num = '';
    for (var i = 0; i < hex.length; i += 2) {
        num = String.fromCharCode(parseInt(hex.substr(i, 2), 16));
        if((num >= '0' && num <= '9') || (num === '-'))
        {
            str += num;
        }
        else
        {
            if(str.length !== 0)
            {
                return str
            }
        }
    }return str;
}
/*监听蓝牙数据，转换重量数据*/
function setNotify(param, callback) {
    ble.setNotify(param, function (ret) {
        var value = ret.characteristic.value;
        // if (ret && value.indexOf('ff01') !== -1) {
        if (ret && value.substr(0,4) === 'ff01') {
            var wei = value.substr(8, value.length-8);
            // var wei = value.substr(12, 12);
            // wei = Math.round(Number(hex2a(wei)));
            wei = Math.round(Number(StringToNum(wei)));
        }
        callback(wei);
    });
}

/*发送消息到蓝牙*/
function writeValueForCharacteristic(param, callback) {
    if (param.value && connetcedStatus){
        ble.writeValueForCharacteristic(param, function (ret) {
            if (ret.status) {
                // console.log("发送成功");
            } else {
                console.log("发送失败："+param.value);
            }
            callback(ret);
        });
    }
}
var lastTime = new Date().getSeconds()*1000+ new Date().getMilliseconds();
// 接收重量数据计数
var countLED = 0;
/*组装报文并发数*/
function getMess(param, callback) {
    var param1 = {
        SF: "AA A5 ",
        LEN: '1A 00 ',
        DES: 'FF FF ',
        SRC: '12 34 ',
        TID: 'B0 A1 ',
        CMD1: '38 02 ',
        X: '00 00 ',
        Y: '00 00 ',
        WIDTH: '40 00 ',
        HEIGHT: '20 00 ',
        FORMAT: '00 00 01 00 ',
        CNT: '04 00 ',
        CRC: '00 00 ',
        EF: '5A 55  ',
        msg: ''
    };
    var newmsg = feedName;
    if(!newmsg.length>0){
        return false
    }
    var msglen = newmsg.getByteLen();
    var ttr = '';
    if (Number(_planSum - _feedNum) >= 0) {
        ttr = '少';
        echartsType = '少';
    } else {
        ttr = '多';
        echartsType = '多';
    }
    if (msglen < 8) {
        for (var i = 0; i < 8 - msglen; i++) {
            newmsg = newmsg + ' ';
        }
        newmsg = newmsg + ttr;
    } else {
        newmsg = feedName + ttr;
    }
    // 不是装料状态班次饲喂完成显示
    if(!feedStatus){
        var newmsg = batchName+'次';
        var msglen = newmsg.getByteLen();
        var ttr = '';
        if (msglen < 8) {
            for (var i = 0; i < 8 - msglen; i++) {
                newmsg = newmsg + ' ';
            }
            newmsg = newmsg + ttr;
        } else {
            newmsg = feedName + ttr;
        }
        param1.msg = newmsg + '饲喂完成';
    }else{
        param1.msg = newmsg + Math.abs(Number(_planSum - _feedNum)).toFixed(0) + 'kg';
    }
    // param1.msg = newmsg + Math.abs(Number(param.value)).toFixed(0) + 'kg'
    console.log(param1.msg)
    //组装字符卡LED报文
    zfk.getMsg(param1, function (ret, err) {
        var str = ret.sendMsg;
        str = str.replace(/\s+/g, "");
        var num = str.length / 2;
        param.value = "FF0500" + num.toString(16) + str;
        countLED ++;
        // 称重量数据3包取1包
        if (countLED >= 3){
            msgList.push(param.value);
            // var ms = strToHex(sbId,4)+strToHex(classCode,2)+strToHex(trainNumber,2)+strToHex(feedIndex,2)+strToHex(_planSum,4)+strToHex(_feedNum,4)+strToHex(nowWeight,4);
            // var num1 = ms.length / 2;
            // 同步刷新图表
            // 饲喂状态刷新实时状态，否则不刷新装料信息
            if(feedStatus && (allowAuto || weightBeforefix ==='1')){
                renderUnload();
                feedMyChart.setOption({
                    dataset: {
                        source: [[1, _feedNum]]
                    }
                });
            }
            renderLoad();
            weightMyChart.setOption({
                dataset: {
                    source: [[1, nowWeight]]
                }
            });
            countLED = 0 ;
        }
    });
}
/*字符串转16进制hex*/
function strToHex(str,length){
    var hex = Number(str).toString(16);
    var append = '';
    if (hex.length < length){
        for (var i=0;i<length-hex.length;i++){
            append = append + '0';
        }
    }
    return append+hex;
}

var weightSize = 40;

/*初始化重量图表*/
function initWeight() {
    api.showProgress({
        title: '图表数据加装中...',
        modal: true
    });
    weightStatus = true;
    weightDataFilter = new WeightDataFilter(weightSize, _weightSum);
    renderUnload();
    renderLoad();
    feedMyChart.setOption({
        dataset: {
            source: [[1, _feedNum]]
        }
    });
    weightMyChart.setOption({
        dataset: {
            source: [[1, nowWeight]]
        }
    });
    api.hideProgress();
    clearInterval(totalInterval);
    totalAjax = true;
    canUpload = true;
    totalList = [];
    totalInterval = setInterval(function () {
        totalWeightUpload();
    }, 3000);
    document.getElementById('startLoad').setAttribute("class", 'btnc mui-btn-success dis');
    document.getElementById('submitData').setAttribute("class", 'btnc mui-btn-success');
    document.getElementById('text').innerHTML = 'V' + api.appVersion;
    api.setGlobalData({key: 'startTime', value: currTimeFn(new Date())});
}

var lastWeight = 0;
function weightStabilization(weight) {
    // 计算当前重量与上一次记录的重量之间的差值
    var diff = weight - lastWeight;
    // 如果差值在一定范围内，则认为重量是稳定的
    if (Math.abs(diff) < 2) {
        weight = weight;
        lastWeight = weight;
        return true;
    } else {
        // 如果差值超过一定范围，则认为重量是不稳定的，重新开始计算
        weight = 0;
        lastWeight = weight;
        return false;
    }
}