fix：取上报的时间

server-web/src/main/java/com/makeit/mqtt/PushCallback.java

@@ -171,7 +171,7 @@ public class PushCallback implements MqttCallback {
         List<HeaderInfo.Bind> bindings = headers.getBindings();
 
         Long timestamp = device.getTimestamp();
-        long currentSecond = System.currentTimeMillis() / 1000;
+        long currentSecond = timestamp / 1000;
         //  先通过产品名称判断
         if (REPORT_PROPERTY.equals(device.getMessageType()) && headers.getProductName().contains("呼吸")) {
             cacheBrDeviceData(device, currentSecond);