优化称重首页图每秒刷新

src/views/weightManage/index.vue

@@ -299,6 +299,7 @@ const formData = reactive({
 
 const imgData = reactive({
   imgUrl: 'http://localhost:6609/file/001.bmp', // 样图URL
+  baseUrl: 'http://localhost:6609/file/001.bmp' // 基础URL
 })
 
 //比对结果
@@ -540,14 +541,28 @@ watch(activeStep, (newVal) => {
   }
 })
 
+// 图片刷新定时器
+let imageRefreshTimer: any = null
+
 // 组件挂载时
 onMounted(async () => {
   await loadFlvJs()
+  
+  // 启动图片自动刷新，每秒更新一次
+  imageRefreshTimer = setInterval(() => {
+    // 添加时间戳参数，避免浏览器缓存
+    imgData.imgUrl = `${imgData.baseUrl}?t=${Date.now()}`
+  }, 1000)
 })
 
 // 组件卸载时
 onBeforeUnmount(() => {
   stopCamera()
+  // 清除图片刷新定时器
+  if (imageRefreshTimer) {
+    clearInterval(imageRefreshTimer)
+    imageRefreshTimer = null
+  }
 })
 
 const workOrderResp = ref<WorkOrderResp>({