fix: 新绑定设备，偶尔出现设备名称重复情况，问题修复。

intc-modules/intc-iot/src/main/java/com/intc/iot/controller/IotController.java

@@ -978,12 +978,23 @@ public class IotController extends BaseController {
                 warnCode |= DefineDeviceWarnCode.DeviceOffline;
             }
 
-            // 计算设备数量，用于生成设备名称
+            // 查询该用户已有测控一体机的名称，找到第一个不冲突的序号
-            long deviceCount = deviceMapper.selectCount(
+            java.util.List<Device> existControllers = deviceMapper.selectList(
                 new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<Device>()
                     .eq(Device::getUserId, userId)
                     .eq(Device::getDeviceType, 2)
+                    .select(Device::getDeviceName)
             );
+            java.util.Set<String> existingControllerNames = new java.util.HashSet<>();
+            for (Device d : existControllers) {
+                if (d.getDeviceName() != null) {
+                    existingControllerNames.add(d.getDeviceName());
+                }
+            }
+            int nextControllerNum = 1;
+            while (existingControllerNames.contains("控制器" + nextControllerNum)) {
+                nextControllerNum++;
+            }
 
             // 创建或更新设备信息
             Date now = new Date();
@@ -1004,7 +1015,7 @@ public class IotController extends BaseController {
 
             // 设置基本信息
             device.setUserId(userId);
-            device.setDeviceName("控制器" + (deviceCount + 1));
+            device.setDeviceName("控制器" + nextControllerNum);
             device.setBindTime(now);
             device.setInputVoltage(bo.getInputVoltage());
             device.setVoltageWarnOpen(0);
@@ -1392,12 +1403,23 @@ public class IotController extends BaseController {
             // 初始化警告码：默认探头未校准 (0x0001)
             int warnCode = 0x0001;
 
-            // 计算设备数量，用于生成设备名称
+            // 查询该用户已有水质检测仪的名称，找到第一个不冲突的序号
-            long deviceCount = deviceMapper.selectCount(
+            java.util.List<Device> existDevices = deviceMapper.selectList(
                 new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<Device>()
                     .eq(Device::getUserId, rootUserId)
                     .eq(Device::getDeviceType, 1)
+                    .select(Device::getDeviceName)
             );
+            java.util.Set<String> existingNames = new java.util.HashSet<>();
+            for (Device d : existDevices) {
+                if (d.getDeviceName() != null) {
+                    existingNames.add(d.getDeviceName());
+                }
+            }
+            int nextNum = 1;
+            while (existingNames.contains("溶解氧" + nextNum)) {
+                nextNum++;
+            }
 
             // 创建或更新设备信息
             Date now = new Date();
@@ -1419,7 +1441,7 @@ public class IotController extends BaseController {
 
             // 设置基本信息
             device.setUserId(rootUserId);
-            device.setDeviceName("溶解氧" + (deviceCount + 1));
+            device.setDeviceName("溶解氧" + nextNum);
             device.setBindTime(now);
             device.setPondId(bo.getPondId() != null && bo.getPondId() > 0 ? bo.getPondId() : null);
             device.setSalinityCompensation(bo.getSalinityCompensation());
@@ -1638,12 +1660,23 @@ public class IotController extends BaseController {
             // 获取设备属性
             Map<String, Object> deviceProperties = iotDeviceService.queryDeviceProperties(iotId);
 
-            // 计算设备数量，用于生成设备名称
+            // 查询该用户已有太阳能网控的名称，找到第一个不冲突的序号
-            long deviceCount = deviceMapper.selectCount(
+            java.util.List<Device> existSolars = deviceMapper.selectList(
                 new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<Device>()
                     .eq(Device::getUserId, rootUserId)
                     .eq(Device::getDeviceType, 3)
+                    .select(Device::getDeviceName)
             );
+            java.util.Set<String> existingSolarNames = new java.util.HashSet<>();
+            for (Device d : existSolars) {
+                if (d.getDeviceName() != null) {
+                    existingSolarNames.add(d.getDeviceName());
+                }
+            }
+            int nextSolarNum = 1;
+            while (existingSolarNames.contains("太阳能网控" + nextSolarNum)) {
+                nextSolarNum++;
+            }
 
             // 创建或更新设备信息
             Date now = new Date();
@@ -1659,7 +1692,7 @@ public class IotController extends BaseController {
 
             // 设置基本信息
             device.setUserId(rootUserId);
-            device.setDeviceName("太阳能网控" + (deviceCount + 1));
+            device.setDeviceName("太阳能网控" + nextSolarNum);
             device.setBindTime(now);
             device.setPondId(bo.getPondId() != null && bo.getPondId() > 0 ? bo.getPondId() : null);
             device.setOxyWarnLower(bo.getOxyWarnLower());