diff --git a/proto/src/model.proto b/proto/src/model.proto
index a8caee5..9fbfb5f 100644
--- a/proto/src/model.proto
+++ b/proto/src/model.proto
@@ -5,74 +5,70 @@ package model;
 option go_package = "./model/proto";
 
 message Repository {
-  repeated Turnout turnouts = 1;
-  repeated Signal Signals = 2;
-  repeated Section sections = 3;
-  repeated AxleCounter axleCounters = 4;
-  repeated Responder responders = 5;
-  repeated Slope slopes = 6;
-  repeated Curve curves = 7;
+  string id = 1;
+  string version = 2;
+  repeated PhysicalSection physicalSections = 3;
+  repeated CheckPoint checkPoints = 4;
+  repeated Turnout turnouts = 5;
+  repeated Signal signals = 6;
+  repeated Responder responders = 7;
+  repeated Slope slopes = 8;
+  repeated Curve curves = 9;
 }
 
-message Turnout {
-  Id id = 1;
+//物理区段
+message PhysicalSection {
+  string id = 1;
+}
+
+//区段检测点
+message CheckPoint{
+  string id = 1;
   Kilometer kilometer = 2;
-  Id axleCounterA = 3; //A端关联的计轴
-  Id axleCounterB = 4;
-  Id axleCounterC = 5;
+  repeated DevicePort relDevicePorts = 3; //计轴连接的设备端点
 }
 
+//应答器
+message Responder {
+  string id = 1;
+  Kilometer kilometer = 2;
+}
+
+//道岔
+message Turnout {
+  string id = 1;
+  Kilometer kilometer = 2;
+}
+
+//信号机
 message Signal {
-  Id id = 1;
+  string id = 1;
   Kilometer kilometer = 2;
   DevicePort relDevice = 3; //关联的设备，区段或道岔
 }
 
-message Section {
-  Id id = 1;
-  Id axleCounterA = 2; //A端关联的计轴
-  Id axleCounterB = 3; //B端关联的计轴
-  Id turnout = 4; //岔区区段关联的道岔
-}
-
-message AxleCounter{
-  Id id = 1;
-  Kilometer kilometer = 2;
-  bool virtual = 3; //是否虚拟
-}
-
-message Responder {
-  Id id = 1;
-  Kilometer kilometer = 2;
-}
-
 //坡
 message Slope {
-  Id id = 1;
-  repeated Point points = 2;
+  string id = 1;
+  repeated Kilometer kms = 2;
   int32 degree = 3; //坡度角的sin * 1000
 }
 
 //曲线
 message Curve {
- Id id = 1;
- repeated Point points = 2;
- int32 radius = 3; //半径 mm
+  string id = 1;
+  repeated Kilometer kms = 2;
+  int32 radius = 3; //半径 mm
 }
 
+//设备及端口
 message DevicePort {
-  Id deviceId = 1;
+  string deviceId = 1;
   Port port = 2;
 }
 
-message Id {
-  string lineId = 1;
-  string stationId = 2;
-  string index = 3;
-}
-
 enum Port {
-  UNKNOWN = 0;
+  None = 0; //没有端口/未指定端口
   A = 1;
   B = 2;
   C = 3;
@@ -80,18 +76,28 @@ enum Port {
 
 //公里标
 message Kilometer {
-  int64 kilometer = 1;         //公里标mm
+  int64 value = 1;         //公里标mm
   string coordinateSystem = 2; //坐标系
   Direction direction = 3;     //左右行
 }
 
+//公里标转换
+message KilometerConvert {
+  Kilometer kilometerA = 1;
+  Kilometer kilometerB = 2;
+  bool sameTrend = 3; //相同趋势（同增同减）？
+}
+
 //左右行
 enum Direction {
   LEFT = 0;
   RIGHT = 1;
 }
 
-//图中一点
-message Point {
-  repeated Kilometer kilometers = 1;
+//检测点类型
+enum CheckPointType{
+  CheckPointType_Unknown = 0;
+  AxleCounter = 1; //计轴
+  InsulatedJoint = 2; //绝缘节
+  VirtualAxle = 3; //虚拟计轴
 }
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