From 095e5e87f9f9c071ca8a291a6015ba3979070383 Mon Sep 17 00:00:00 2001
From: fengyarnom <fengyarnom@gmail.com>
Date: Wed, 28 May 2025 17:00:03 +0800
Subject: [PATCH] =?UTF-8?q?feat=EF=BC=9A=E8=BF=9E=E6=8E=A5=E5=90=8E?=
 =?UTF-8?q?=E8=87=AA=E5=8A=A8=E5=8F=91=E9=80=81=E6=8C=87=E4=BB=A4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 tcp_server.go | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/tcp_server.go b/tcp_server.go
index a376666..5965566 100644
--- a/tcp_server.go
+++ b/tcp_server.go
@@ -61,6 +61,17 @@ func handleConnection(conn net.Conn) {
 	clientConns[remoteAddr] = conn
 	clientsMutex.Unlock()
 
+	// 设备刚连接时立即发送一次查询指令
+	go func() {
+		time.Sleep(2 * time.Second) // 等待2秒让连接稳定
+		command := "@1602301014A*0!\n"
+		if _, err := conn.Write([]byte(command)); err != nil {
+			Logger.Printf("发送连接后查询指令到客户端 %s 失败: %v", remoteAddr, err)
+		} else {
+			TCPDataLogger.Printf("发送连接后查询指令到客户端 %s: %s", remoteAddr, strings.TrimSpace(command))
+		}
+	}()
+
 	// 启动定时发送指令的goroutine
 	go sendPeriodicCommand(conn, remoteAddr)
 
@@ -113,9 +124,9 @@ func handleConnection(conn net.Conn) {
 	}
 }
 
-// sendPeriodicCommand 每30分钟发送一次查询指令
+// sendPeriodicCommand 每5分钟发送一次查询指令
 func sendPeriodicCommand(conn net.Conn, remoteAddr string) {
-	ticker := time.NewTicker(30 * time.Minute)
+	ticker := time.NewTicker(5 * time.Minute)
 	defer ticker.Stop()
 
 	for {