diff --git a/bj-rtss-message b/bj-rtss-message
index 86bf1f0..1db1960 160000
--- a/bj-rtss-message
+++ b/bj-rtss-message
@@ -1 +1 @@
-Subproject commit 86bf1f0c76ade5866afd8063e8f263ca9eda55a5
+Subproject commit 1db196077c6293a757d3462b0aa0c7a62d219035
diff --git a/src/components/draw-app/properties/SignalProperty.vue b/src/components/draw-app/properties/SignalProperty.vue
index 79b63f6..f9aaa7c 100644
--- a/src/components/draw-app/properties/SignalProperty.vue
+++ b/src/components/draw-app/properties/SignalProperty.vue
@@ -37,6 +37,7 @@
       style="margin-top: 10px"
       v-model="refDevData.deviceType"
       :options="DeviceTypeOptions"
+      :readonly="true"
       :map-options="true"
       :emit-value="true"
       @update:model-value="onUpdate"
@@ -47,6 +48,7 @@
       v-if="refDevData.deviceType === graphicData.RelatedRef.DeviceType.Section"
       style="margin-top: 10px"
       v-model="refDevData.id"
+      :readonly="true"
       :options="sectionList"
       :map-options="true"
       :emit-value="true"
@@ -59,6 +61,7 @@
       style="margin-top: 10px"
       v-model="refDevData.id"
       :options="turnoutList"
+      :readonly="true"
       :map-options="true"
       :emit-value="true"
       @update:model-value="onUpdate"
@@ -70,6 +73,7 @@
       style="margin-top: 10px"
       v-model="refDevData.devicePort"
       :options="DevicePortOptions"
+      :readonly="true"
       :map-options="true"
       :emit-value="true"
       @update:model-value="onUpdate"
@@ -123,6 +127,10 @@ function initRefData(signal: Signal) {
     refDevData.id = signalModel.refDev.id;
     refDevData.devicePort = signalModel.refDev.devicePort;
     refDevData.deviceType = signalModel.refDev.deviceType;
+  } else {
+    refDevData.id = '';
+    refDevData.deviceType = graphicData.RelatedRef.DeviceType.Section;
+    refDevData.devicePort = graphicData.RelatedRef.DevicePort.A;
   }
 }
 function initDeviceList() {
diff --git a/src/components/draw-app/properties/StopPositionProperty.vue b/src/components/draw-app/properties/StopPositionProperty.vue
index 6317a02..245620e 100644
--- a/src/components/draw-app/properties/StopPositionProperty.vue
+++ b/src/components/draw-app/properties/StopPositionProperty.vue
@@ -48,6 +48,7 @@
       v-model="refDevData.id"
       :options="sectionList"
       :map-options="true"
+      :readonly="true"
       :emit-value="true"
       @update:model-value="onUpdate"
       label="关联设备"
@@ -120,6 +121,8 @@ function initRefData(stopPosition: StopPosition) {
   }
   if (stopPositionModel.refDev) {
     refDevData.id = stopPositionModel.refDev.id;
+  } else {
+    refDevData.id = '';
   }
 }
 
diff --git a/src/graphics/signal/Signal.ts b/src/graphics/signal/Signal.ts
index bb57066..78f9f4c 100644
--- a/src/graphics/signal/Signal.ts
+++ b/src/graphics/signal/Signal.ts
@@ -1,14 +1,23 @@
 import { Graphics, Point } from 'pixi.js';
 import {
+  calculateDistanceFromPointToLine,
+  calculateFootPointFromPointToLine,
   GraphicData,
   GraphicState,
+  isPointOnLine,
   JlGraphic,
   JlGraphicTemplate,
 } from 'src/jl-graphic';
 import { calculateMirrorPoint } from 'src/jl-graphic';
 import { LampMainBody } from './LampMainBody';
-import { drawArrow, IRelatedRefData } from '../CommonGraphics';
+import {
+  drawArrow,
+  IRelatedRefData,
+  createRelatedRefProto,
+} from '../CommonGraphics';
 import { SignalCode } from './SignalCode';
+import { Section, SectionPort } from '../section/Section';
+import { Turnout, TurnoutPort } from '../turnout/Turnout';
 
 export interface KilometerSystem {
   get coordinateSystem(): string;
@@ -197,6 +206,91 @@ export class Signal extends JlGraphic {
     }
     this.humanControl.endFill();
   }
+
+  buildRelation() {
+    const sections = this.queryStore.queryByType<Section>(Section.Type);
+    const turnouts = this.queryStore.queryByType<Turnout>(Turnout.Type);
+    let deviceId = '';
+    let deviceType = '';
+    let minD = Number.MAX_SAFE_INTEGER;
+    let port: SectionPort | TurnoutPort = SectionPort.A;
+    sections.forEach((sec: Section) => {
+      for (let i = 0; i < sec.datas.points.length - 1; i++) {
+        const d = calculateDistanceFromPointToLine(
+          sec.localToCanvasPoint(sec.datas.points[i]),
+          sec.localToCanvasPoint(sec.datas.points[i + 1]),
+          this.position
+        );
+        const p = calculateFootPointFromPointToLine(
+          sec.localToCanvasPoint(sec.datas.points[i]),
+          sec.localToCanvasPoint(sec.datas.points[i + 1]),
+          this.position
+        );
+        const onLine = isPointOnLine(
+          sec.localToCanvasPoint(sec.datas.points[i]),
+          sec.localToCanvasPoint(sec.datas.points[i + 1]),
+          p
+        );
+        if (onLine && d < minD) {
+          minD = d;
+          deviceId = sec.id;
+          deviceType = sec.type;
+          port = SectionPort.A;
+        }
+      }
+    });
+
+    turnouts.forEach((turnout: Turnout) => {
+      for (let i = 0; i < turnout.datas.pointA.length; i++) {
+        const p1 = turnout.localToCanvasPoint(
+          i === 0 ? new Point(0, 0) : turnout.datas.pointA[i - 1]
+        );
+        const p2 = turnout.localToCanvasPoint(turnout.datas.pointA[i]);
+        const d = calculateDistanceFromPointToLine(p1, p2, this.position);
+        const p = calculateFootPointFromPointToLine(p1, p2, this.position);
+        const onLine = isPointOnLine(p1, p2, p);
+        if (onLine && d < minD) {
+          minD = d;
+          deviceId = turnout.id;
+          deviceType = turnout.type;
+          port = TurnoutPort.A;
+        }
+      }
+      for (let i = 0; i < turnout.datas.pointB.length; i++) {
+        const p1 = turnout.localToCanvasPoint(
+          i === 0 ? new Point(0, 0) : turnout.datas.pointB[i - 1]
+        );
+        const p2 = turnout.localToCanvasPoint(turnout.datas.pointB[i]);
+        const d = calculateDistanceFromPointToLine(p1, p2, this.position);
+        const p = calculateFootPointFromPointToLine(p1, p2, this.position);
+        const onLine = isPointOnLine(p1, p2, p);
+        if (onLine && d < minD) {
+          minD = d;
+          deviceId = turnout.id;
+          deviceType = turnout.type;
+          port = TurnoutPort.B;
+        }
+      }
+      for (let i = 0; i < turnout.datas.pointC.length; i++) {
+        const p1 = turnout.localToCanvasPoint(
+          i === 0 ? new Point(0, 0) : turnout.datas.pointC[i - 1]
+        );
+        const p2 = turnout.localToCanvasPoint(turnout.datas.pointC[i]);
+        const d = calculateDistanceFromPointToLine(p1, p2, this.position);
+        const p = calculateFootPointFromPointToLine(p1, p2, this.position);
+        const onLine = isPointOnLine(p1, p2, p);
+        if (onLine && d < minD) {
+          minD = d;
+          deviceId = turnout.id;
+          deviceType = turnout.type;
+          port = TurnoutPort.C;
+        }
+      }
+    });
+    if (deviceId) {
+      this.datas.refDev = createRelatedRefProto(deviceType, deviceId, port);
+    }
+  }
 }
 
 export class SignalTemplate extends JlGraphicTemplate<Signal> {
diff --git a/src/graphics/stopPosition/StopPosition.ts b/src/graphics/stopPosition/StopPosition.ts
index 4900454..c48b3af 100644
--- a/src/graphics/stopPosition/StopPosition.ts
+++ b/src/graphics/stopPosition/StopPosition.ts
@@ -1,11 +1,15 @@
 import { Graphics } from 'pixi.js';
 import {
+  calculateDistanceFromPointToLine,
+  calculateFootPointFromPointToLine,
+  isPointOnLine,
   GraphicData,
   JlGraphic,
   JlGraphicTemplate,
   VectorText,
 } from 'src/jl-graphic';
-import { IRelatedRefData } from '../CommonGraphics';
+import { IRelatedRefData, createRelatedRefProto } from '../CommonGraphics';
+import { Section, SectionPort } from '../section/Section';
 
 export enum CoachNum {
   Four = 0,
@@ -88,6 +92,41 @@ export class StopPosition extends JlGraphic {
     }
     this.signBody.endFill();
   }
+  buildRelation() {
+    const sections = this.queryStore.queryByType<Section>(Section.Type);
+    let deviceId = '';
+    let deviceType = '';
+    let minD = Number.MAX_SAFE_INTEGER;
+    let port = SectionPort.A;
+    sections.forEach((sec: Section) => {
+      for (let i = 0; i < sec.datas.points.length - 1; i++) {
+        const d = calculateDistanceFromPointToLine(
+          sec.localToCanvasPoint(sec.datas.points[i]),
+          sec.localToCanvasPoint(sec.datas.points[i + 1]),
+          this.position
+        );
+        const p = calculateFootPointFromPointToLine(
+          sec.localToCanvasPoint(sec.datas.points[i]),
+          sec.localToCanvasPoint(sec.datas.points[i + 1]),
+          this.position
+        );
+        const onLine = isPointOnLine(
+          sec.localToCanvasPoint(sec.datas.points[i]),
+          sec.localToCanvasPoint(sec.datas.points[i + 1]),
+          p
+        );
+        if (onLine && d < minD) {
+          minD = d;
+          deviceId = sec.id;
+          deviceType = sec.type;
+          port = SectionPort.A;
+        }
+      }
+    });
+    if (deviceId) {
+      this.datas.refDev = createRelatedRefProto(deviceType, deviceId, port);
+    }
+  }
 }
 
 export class StopPositionTemplate extends JlGraphicTemplate<StopPosition> {