diff --git a/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/Dialogs/DrivingGuidance/components/DeviceControlDialog.vue b/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/Dialogs/DrivingGuidance/components/DeviceControlDialog.vue
index 73acab39..80a8ba5b 100644
--- a/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/Dialogs/DrivingGuidance/components/DeviceControlDialog.vue
+++ b/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/Dialogs/DrivingGuidance/components/DeviceControlDialog.vue
@@ -146,7 +146,9 @@ export default {
         request({
           url: `business/device/functions/${this.deviceId}/${52}`,
           method: "post",
-          params: {}
+          params: {
+            _a: '-'
+          }
         })
           .then(async (result) => {
             if (result.code != 200) return;