diff --git a/appsrc/service/app/disinfection_ctrl/disinfection_ctrl_service.cpp b/appsrc/service/app/disinfection_ctrl/disinfection_ctrl_service.cpp
index ad9f5d7..fda03ab 100644
--- a/appsrc/service/app/disinfection_ctrl/disinfection_ctrl_service.cpp
+++ b/appsrc/service/app/disinfection_ctrl/disinfection_ctrl_service.cpp
@@ -12,6 +12,8 @@ using namespace disinfection;
 #define SETTING_DB SettingDBDao::ins()
 #define FORMULA_DB FormulaDBDao::ins()
 
+static bool feq(float a, float b) { return fabs(a - b) < 0.0001; }
+
 string DisinfectionCtrlService::getSetting(SettingId sid) {
   // 1. 从 realtimeCfg 中进行查找
   // 2. 从 系统配置      中进行查找
@@ -526,6 +528,7 @@ void DisinfectionCtrlService::processStateDisinfection(DisinfectionEvent* event)
     if (zsteady_clock().elapsedTimeS(s_lastComputeDvalueTp) > DVALUE_COMPUTEPERIOD_TIME_S) {
       s_lastComputeDvalueTp = zsteady_clock().now();
       s_nlog                = computeNextLogLevel(s_nlog, s_dvalue);
+      if (s_nlog >= m_tlog) s_nlog = m_tlog;
       updateRemainTime(s_dvalue, s_nlog, m_tlog, s_remaintime);
       // traceState();
       tryLogState(false);
@@ -552,10 +555,11 @@ void DisinfectionCtrlService::processStateDisinfection(DisinfectionEvent* event)
       }
     }
 
-    if (s_remaintime <= 0 && s_nlog > (m_tlog + 0.01)) {
+    if (s_remaintime <= 0 && feq(s_nlog, m_tlog)) {
       /**
        * @brief 消毒结束
        */
+      s_nlog = m_tlog;
       changeToNextState();
     }