From a9c835459990db39ae2db5157d7ad835dcd25b44 Mon Sep 17 00:00:00 2001
From: lefengyang <lefengyang@tencent.com>
Date: Tue, 15 Sep 2026 13:43:56 +0800
Subject: [PATCH] 发送优化
---
ledApp/pages/index/index.vue | 140 ++++++++++++++++++++++++++++++++++++++++------
1 files changed, 120 insertions(+), 20 deletions(-)
diff --git a/ledApp/pages/index/index.vue b/ledApp/pages/index/index.vue
index c04a4e0..d5f0d68 100644
--- a/ledApp/pages/index/index.vue
+++ b/ledApp/pages/index/index.vue
@@ -191,7 +191,10 @@
dId: '' ,//已连接的设备id,
devKwh: '',
platform: '',
- screenOn: true
+ screenOn: true,
+ waitDallThenSend: false, // 标记：收到DALL清除所有信息指令回应后，再开始发送INST帧
+ instTimer: null, // INST发送超时计时器：发送INST帧后等待回应，超过5秒未收到则判定发送失败
+ instSendAborted: false // 标记：INST发送已失败/中止，收到迟到的回应时忽略，不再继续发送
}
},
onLoad() {
@@ -377,7 +380,7 @@
console.log('--------------', item);
uni.showLoading({
- title: '发送中...',
+ title: '发送中0%',
mask: true
});
@@ -402,7 +405,12 @@
}
if (this.ledData.length > 0) {
- this.commandINST(this.ledData[this.ledCurrent]);
+ // 重置发送状态：清除残留计时器、重置失败标记
+ this.clearInstTimer();
+ this.instSendAborted = false;
+ // 向智能壳发送INST帧前，先发送一次清除所有信息指令(DALL)，待智能壳回应后再开始发送
+ this.waitDallThenSend = true;
+ this.commandDALL();
} else {
uni.hideLoading();
uni.showToast({
@@ -494,7 +502,7 @@
var that = this
uni.setBLEMTU({
deviceId: this.deviceId,
- mtu: 80, // 最大值一般 512，蓝牙 4.2 通常支持 247
+ mtu: 512, // 最大值一般 512，蓝牙 4.2 通常支持 247
success: (res) => {
console.log('设置MTU成功:', res);
uni.hideLoading();
@@ -587,7 +595,8 @@
},
//向低功耗蓝牙设备特征值中写入二进制数据
- writeBLECharacteristicValue(buffer) {
+ //keepLoading: 发送INST帧(含DALL前置指令、结束帧)过程中保持进度loading，发送成功后不关闭
+ writeBLECharacteristicValue(buffer, keepLoading = false) {
const that = this
uni.writeBLECharacteristicValue({
deviceId: this.deviceId,
@@ -597,7 +606,9 @@
writeType: 'write',
success: (res) => {
//console.log('写入指令发送成功----', res);
- uni.hideLoading();
+ if (!keepLoading) {
+ uni.hideLoading();
+ }
},
fail: (err) => {
//console.log('写入指令发送失败----', err);
@@ -706,6 +717,67 @@
this.writeBLECharacteristicValue(buffer)
}, 500);
},
+ // 清除所有信息指令(DALL)
+ commandDALL() {
+ // 1．手机发指令：启动字节+帧头+包头段(0x43+简易绑定号+屏大小)+DALL+CRC校验码+帧尾。
+ // 2．智能壳回指令：启动字节+帧头+包头段+DALL+返回标志+加密地址+CRC校验码+帧尾。
+ // 构建指令数据
+ const startBytes = new Array(10).fill(0x55); // 10个启动字节
+ const frameHeader = 0x7E; // 帧头
+ const packageType = 0x43; // 包类型
+ // 使用新的简易绑定号生成函数
+ const simpleBindId = this.generateSimpleBindId();
+
+ // 屏大小 (2 bytes)
+ const screenSize = [0x0C, 0x18];
+ const packageHeader = [packageType, ...simpleBindId, ...screenSize];
+ const command = [0x44, 0x41, 0x4C, 0x4C]; // "DALL"的ASCII码
+
+ // 组合数据
+ const data = [
+ ...startBytes,
+ frameHeader,
+ ...packageHeader,
+ ...command
+ ];
+ // 计算CRC校验码（从包头段开始计算）
+ const crc = this.calcCRC16(data.slice(11));
+ // 添加CRC和帧尾
+ data.push((crc >> 8) & 0xFF); // CRC高8位
+ data.push(crc & 0xFF); // CRC低8位
+ data.push(frameHeader); // 帧尾
+ console.log('DALL data----', this.hexArrayToHexString(data))
+
+ const buffer = new Uint8Array(data).buffer;
+ setTimeout(() => {
+ this.writeBLECharacteristicValue(buffer, true)
+ }, 50);
+ },
+ // 启动INST发送超时计时器：发送INST帧后等待智能壳回应，超过5秒未收到则判定发送失败
+ startInstTimer() {
+ this.clearInstTimer();
+ this.instTimer = setTimeout(() => {
+ this.handleInstTimeout();
+ }, 5000);
+ },
+ // 清除INST发送超时计时器
+ clearInstTimer() {
+ if (this.instTimer) {
+ clearTimeout(this.instTimer);
+ this.instTimer = null;
+ }
+ },
+ // INST发送超时处理：停止发送并提示发送失败
+ handleInstTimeout() {
+ this.instTimer = null;
+ this.instSendAborted = true;
+ uni.hideLoading();
+ uni.showToast({
+ title: '发送失败',
+ icon: 'none',
+ mask: true
+ });
+ },
//添加信息指令(INST)
commandINST(hexString) {
// 1．手机发指令：启动+帧头+包头段(0x43+简易绑定号+屏大小)+INST+信息属性+文件名+总帧数+当前帧*+块描述+块数据+CRC校验码+帧尾
@@ -741,8 +813,6 @@
// 块数据
const blockDescription = this.hexStringToArray(hexString)
- //const blockString = "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000FF0000FF000000000000000000000000000000000000000000000000000000000000FF0000000000000000000000000000000000000000000000FF0000000000000000FF0000FF00000000000000000000000000000000FF0000FF000000000000000000FF0000000000FF0000FF00FF0000FF0000FF000000000000000000FF00FF0000FF000000000000000000FF00000000000000000000FF000000FF0000FF0000FF0000FF0000000000FF0000000000000000000000FF0000000000000000000000FF0000FF0000000000000000FF0000FF0000000000000000000000000000FF00FF000000000000000000000000FF00FF0000FF000000000000000000FF00000000000000FF0000FF0000FF0000FF0000FF0000000000000000FF0000FF000000000000000000000000FF0000000000FF0000000000000000000000000000000000000000FF0000000000000000000000000000000000FF0000000000000000000000000000000000FF00000000000000000000000000FF0000FF000000FF0000FF0000000000000000000000FF00000000000000FF0000FF000000FF00FF0000FF000000000000FF0000000000000000000000000000000000000000000000FF0000000000FF0000000000000000000000FF0000000000000000000000000000000000000000FF0000000000000000FF0000000000000000FF0000000000000000FF00000000000000FF0000FF0000FF0000FF000000000000000000FF00000000000000FF0000FF0000FF0000FF0000FF000000000000000000000000000000000000FF0000FF0000000000000000FF0000000000000000FF0000000000000000FF0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000FF00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
- //const blockDescription = this.hexStringToArray(blockString)
// 组合数据
const data = [
@@ -766,11 +836,19 @@
//console.log(this.ledCurrent, '----INST data----', this.hexArrayToHexString(data))
//const buffer = new Uint8Array(data).buffer;
console.log('第几帧-------',this.ledCurrent)
- setTimeout(() => {
+ // 根据总帧数和已发送数量更新发送进度（当前帧发送前，已发送ledCurrent帧），范围10%~99%
+ const sendPercent = Math.max(10, Math.min(99, Math.round(this.ledCurrent / this.ledTotal * 100)));
+ uni.showLoading({
+ title: '发送中' + sendPercent + '%',
+ mask: true
+ });
+ setTimeout(async () => {
//this.writeBLECharacteristicValue(buffer)
- this.sendBLEDataInChunks(
- this.hexArrayToHexString(data)
- )
+ const ok = await this.sendBLEDataInChunks(this.hexArrayToHexString(data))
+ if (ok) {
+ // 数据发送成功后启动超时计时器，等待智能壳回应，超过5秒未收到则判定发送失败
+ this.startInstTimer()
+ }
}, 50);
},
// 发送结束针
@@ -823,7 +901,9 @@
const endbuffer = new Uint8Array(endData).buffer;
setTimeout(() => {
- this.writeBLECharacteristicValue(endbuffer)
+ this.writeBLECharacteristicValue(endbuffer, true)
+ // 结束帧发送后启动超时计时器，等待智能壳回应，超过5秒未收到则判定发送失败
+ this.startInstTimer()
}, 50);
},
async sendBLEDataInChunks(hexStr) {
@@ -854,14 +934,19 @@
})
})
} catch (err) {
- console.error(`🚫 发送中断，第 ${i + 1} 包发送失败`)
+ console.error(`🚫 发送中断，第 ${i + 1} 帧发送失败`, err)
uni.hideLoading();
- break
+ uni.showToast({
+ title: `🚫 发送中断，第 ${i + 1} 帧发送失败`,
+ duration: 4000
+ });
+ return false
}
// 延迟下一包发送
await new Promise(r => setTimeout(r, interval))
}
//console.log("🎉 数据发送完成")
+ return true
},
// 读取电量
commandPOWR() {
@@ -979,6 +1064,12 @@
} else if (resName == 'PLAY') {
} else if (resName == 'INST') {
+ // 收到INST回应，清除发送超时计时器
+ that.clearInstTimer();
+ // 若已因超时中止发送，忽略迟到的回应，不再继续发送
+ if (that.instSendAborted) {
+ return;
+ }
// 添加动画帧
that.ledCurrent++
if (that.ledCurrent < that.ledTotal) {
@@ -988,15 +1079,24 @@
// });
that.commandINST(that.ledData[that.ledCurrent]);
} else if (that.ledCurrent == that.ledTotal) {
- // uni.showLoading({
- // title: '发送结束帧',
- // mask: true
- // });
+ // 所有数据帧已发送完成，发送结束帧，进度显示100%
+ uni.showLoading({
+ title: '发送中100%',
+ mask: true
+ });
that.commandEnd()
+ } else {
+ // 结束帧应答（ledCurrent == ledTotal + 1），全部发送完成，隐藏loading
+ uni.hideLoading();
}
} else if (resName == 'DALL') {
-
+ // 清除所有信息指令回应：返回标志0x30工作无异常，0x31工作有异常
+ if (that.waitDallThenSend) {
+ that.waitDallThenSend = false;
+ // 收到DALL回应后，开始发送第一帧INST
+ that.commandINST(that.ledData[that.ledCurrent]);
+ }
} else if (resName == 'POWR') {
// 查询电量
let capacityHex = result.slice(-8, -6); // "0a"
--
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