diff --git a/model/weather_data.go b/model/weather_data.go
index 8878087..0590b24 100644
--- a/model/weather_data.go
+++ b/model/weather_data.go
@@ -251,7 +251,7 @@ func ParseWH65LPData(data []byte) (*WH65LPData, error) {
 
 	// 2. 解析设备ID (第2字节 + 第22-23字节)
 	idLSB := data[1]
-	idMSB := uint32(data[22])<<8 | uint32(data[21])
+	idMSB := uint32(data[22]) | uint32(data[21])<<8
 	wd.StationID = fmt.Sprintf("%06X", (idMSB<<8)|uint32(idLSB))
 
 	// 3. 解析风向 (bits 16-24)
@@ -273,7 +273,7 @@ func ParseWH65LPData(data []byte) (*WH65LPData, error) {
 	windSpeedRaw := uint16(data[6])
 	if !wd.WSPFlag {
 		// 10位风速
-		windSpeedRaw |= uint16(data[3]>>6) << 8
+		windSpeedRaw |= uint16((data[3]>>6)&0x03) << 8
 	}
 	wd.WindSpeed = float64(windSpeedRaw) / 8.0 * 0.51
 
@@ -297,6 +297,11 @@ func ParseWH65LPData(data []byte) (*WH65LPData, error) {
 	pressureRaw &= 0x1FFFF // 只取17位
 	wd.Pressure = float64(pressureRaw) / 100.0
 
+	// 验证校验和
+	if !IsWH65LPData(data) {
+		return nil, fmt.Errorf("数据校验失败")
+	}
+
 	return wd, nil
 }