From 650488e1c7a7585c71b07fad42cc4e402c755046 Mon Sep 17 00:00:00 2001
From: tiger_zhou <Shmily123@WJ>
Date: Wed, 12 Jun 2024 14:26:47 +0800
Subject: [PATCH] =?UTF-8?q?=E6=97=A5=E5=BF=97=E8=B0=83=E6=95=B4=E5=8F=8A?=
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---
 third_party/semi_physical_train/semi_physical_train.go | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/third_party/semi_physical_train/semi_physical_train.go b/third_party/semi_physical_train/semi_physical_train.go
index 144ceba..a3a3d04 100644
--- a/third_party/semi_physical_train/semi_physical_train.go
+++ b/third_party/semi_physical_train/semi_physical_train.go
@@ -94,9 +94,12 @@ func (s *semiPhysicalTrainImpl) Stop() {
 }
 
 func (s *semiPhysicalTrainImpl) SendTrainControlMessage(info *message.DynamicsTrainInfo) {
-	sendMsg := &message.TrainSpeedMsg{}
-	sendMsg.DynamicsDecode(info)
-	s.trainSpeedInfoUdpClient.Send(sendMsg.Encode())
+	if s.trainSpeedInfoUdpClient != nil {
+		sendMsg := &message.TrainSpeedMsg{}
+		sendMsg.DynamicsDecode(info)
+		s.trainSpeedInfoUdpClient.Send(sendMsg.Encode())
+	}
+
 }
 
 func (s *semiPhysicalTrainImpl) initSemiPhysical() {