diff --git a/community-security-common/src/main/java/com/zyh/common/domain/dto/PersonNum.java b/community-security-common/src/main/java/com/zyh/common/domain/dto/PersonNum.java
new file mode 100644
index 0000000..ae6c6bb
--- /dev/null
+++ b/community-security-common/src/main/java/com/zyh/common/domain/dto/PersonNum.java
@@ -0,0 +1,12 @@
+package com.zyh.common.domain.dto;
+
+import lombok.Data;
+
+@Data
+public class PersonNum {
+    private Integer id;
+    private String buildId;
+    private Integer unit;
+    private Integer personNum;
+
+}
diff --git a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/ShopApplication.java b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/ShopApplication.java
index 454f2e6..897017c 100644
--- a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/ShopApplication.java
+++ b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/ShopApplication.java
@@ -4,8 +4,10 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
+import org.springframework.scheduling.annotation.EnableScheduling;
 
 @SpringBootApplication
+@EnableScheduling
 public class ShopApplication {
     public static void main(String[] args) {
 
diff --git a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/controller/BuildController.java b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/controller/BuildController.java
index 477b05d..747808a 100644
--- a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/controller/BuildController.java
+++ b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/controller/BuildController.java
@@ -57,4 +57,6 @@ public class BuildController {
     public Result<List<Housetype>> getHousetype() {
         return buildService.getHousetype();
     }
+
+
 }
diff --git a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/mapper/BuildMapper.java b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/mapper/BuildMapper.java
index ac90aa4..e40dd46 100644
--- a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/mapper/BuildMapper.java
+++ b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/mapper/BuildMapper.java
@@ -3,6 +3,7 @@ package com.zyh.system.mapper;
 import com.zyh.common.domain.Building;
 import com.zyh.common.domain.Households;
 import com.zyh.common.domain.Housetype;
+import com.zyh.common.domain.dto.PersonNum;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 
@@ -25,4 +26,8 @@ public interface BuildMapper {
     Integer updateHouse(Households households);
 
     List<Housetype> getHousetype();
+
+    List<PersonNum> getPersonNum();
+
+    void updateBuildPersonNum(@Param("personNum") Integer personNum,@Param("unit") Integer unit,@Param("buildId") String buildId);
 }
diff --git a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/service/BuildService.java b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/service/BuildService.java
index f616be6..196b51d 100644
--- a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/service/BuildService.java
+++ b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/service/BuildService.java
@@ -3,6 +3,7 @@ package com.zyh.system.service;
 import com.zyh.common.domain.Building;
 import com.zyh.common.domain.Households;
 import com.zyh.common.domain.Housetype;
+import com.zyh.common.domain.dto.PersonNum;
 import com.zyh.common.result.Result;
 
 import java.util.List;
@@ -20,4 +21,7 @@ public interface BuildService {
 
     Result<List<Housetype>> getHousetype();
 
+    List<PersonNum> getPersonNum();
+
+    void updateBuildPersonNum(Integer personNum,Integer unit,String buildId);
 }
diff --git a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/service/impl/BuildServicempl.java b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/service/impl/BuildServicempl.java
index 0484af4..121f15f 100644
--- a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/service/impl/BuildServicempl.java
+++ b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/service/impl/BuildServicempl.java
@@ -3,6 +3,7 @@ package com.zyh.system.service.impl;
 import com.zyh.common.domain.Building;
 import com.zyh.common.domain.Households;
 import com.zyh.common.domain.Housetype;
+import com.zyh.common.domain.dto.PersonNum;
 import com.zyh.common.result.Result;
 import com.zyh.system.mapper.BuildMapper;
 import com.zyh.system.service.BuildService;
@@ -85,4 +86,15 @@ public class BuildServicempl implements BuildService {
         return Result.success(housetypes);
     }
 
+    @Override
+    public List<PersonNum> getPersonNum() {
+        return buildMapper.getPersonNum();
+    }
+
+    @Override
+    public void updateBuildPersonNum(Integer personNum,Integer unit,String buildId) {
+        buildMapper.updateBuildPersonNum(personNum, unit, buildId);
+    }
+
+
 }
diff --git a/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/timer/Timer.java b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/timer/Timer.java
new file mode 100644
index 0000000..17cd529
--- /dev/null
+++ b/community-security-modules/community-security-modules-shop/src/main/java/com/zyh/system/timer/Timer.java
@@ -0,0 +1,26 @@
+package com.zyh.system.timer;
+
+import com.zyh.common.domain.dto.PersonNum;
+import com.zyh.system.service.BuildService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@Component
+public class Timer {
+@Autowired
+    BuildService buildService;
+    @Scheduled(cron = "0 * * * * ?") // 每分钟触发一次
+    public void myScheduledMethod() {
+        // 在这里编写定时任务要执行的业务逻辑
+        List<PersonNum> personNums = buildService.getPersonNum();
+        for (PersonNum personNum : personNums) {
+            //修改楼栋入住人数
+            buildService.updateBuildPersonNum(personNum.getPersonNum(),personNum.getUnit(),personNum.getBuildId());
+
+        }
+        System.out.println("定时任务执行了");
+    }
+}
diff --git a/community-security-modules/community-security-modules-shop/src/main/resources/mapper/BuildMapper.xml b/community-security-modules/community-security-modules-shop/src/main/resources/mapper/BuildMapper.xml
index 7a0f0ef..dac82af 100644
--- a/community-security-modules/community-security-modules-shop/src/main/resources/mapper/BuildMapper.xml
+++ b/community-security-modules/community-security-modules-shop/src/main/resources/mapper/BuildMapper.xml
@@ -18,6 +18,12 @@
         type = #{type}
          where id = #{id}
     </update>
+    <update id="updateBuildPersonNum">
+        update building set
+        residents = #{personNum}
+        where unit = #{unit}
+        and build_id = #{buildId}
+    </update>
     <delete id="deleteHouse">
         delete from households where id = #{id}
     </delete>
@@ -43,4 +49,10 @@
     <select id="getHousetype" resultType="com.zyh.common.domain.Housetype">
         select * from housetype
     </select>
+    <select id="getPersonNum" resultType="com.zyh.common.domain.dto.PersonNum">
+        SELECT id, build_id, unit, SUM(person_num) AS personNum
+        FROM households
+        GROUP BY build_id, unit;
+    </select>
+
 </mapper>