Unity HDRP + Azure IoT 工业设备监控系统实例

Unity HDRP + Azure IoT 工业设备监控系统实例

下面是一个完整的工业设备监控解决方案，结合Unity HDRP（高清渲染管线）的高质量可视化与Azure IoT的实时数据处理能力。

系统架构

实施步骤

1. 设备接入与数据流

Azure IoT Hub配置:

// 创建设备连接字符串
var deviceClient = DeviceClient.CreateFromConnectionString(
    "HostName=your-hub.azure-devices.net;DeviceId=device001;SharedAccessKey=...");

// 发送设备数据
var telemetryData = new {
   
   
    deviceId = "press-machine-01",
    temperature = 78.4,
    vibration = 2.3,
    status = "running",
    timestamp = DateTime.UtcNow
};

var message = new Message(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(telemetryData)));
await deviceClient.SendEventAsync(message);

2. Azure Digital Twins 模型定义

设备数字孪生模型:

{
   
   
  "@id": "dtmi:com:factory:IndustrialPress;1",
  "@type": "Interface",
  "displayName": "Industrial Press Machine",
  "contents": [
    {
   
   
      "@type": "Property",
      "name": "temperature",
      "schema": "double"
    },
    {
   
   
      "@type": "Property",
      "name": "vibration",
      "schema": "double"
    },
    {
   
   
      "@type": "Property",
      "name": "status",
      "schema": "string"
    },
    {
   
   
      "@type": "Relationship",
      "name": "contains",
      "target": "dtmi:com:factory:Motor;1"
    }
  ]
}

3. Unity HDRP 场景搭建

设备可视化材质:

// HDRP Shader Graph - 温度可视化着色器
Shader "HDRP/IoT/TemperatureVisualization"
{
    Properties
    {
        _BaseColor("Base Color", Color) = (0,0.5,1,1)
        _HotColor("Hot Color", Color) = (1,0,0,1)
        _Temperature("Temperature", Range(0,100)) = 25
        _EmissionIntensity("Emission Intensity", Range(0,10)) = 2
    }

    SubShader
    {
        Tags { "RenderType"="Opaque" }
        
        HLSLINCLUDE
        #include "Packages/com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/RenderPass/CustomPass/CustomPassCommon.hlsl"
        ENDHLSL

        Pass
        {
            Name "ForwardOnly"
            Tags { "LightMode" = "ForwardOnly" }
            
            HLSLPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            
            float _Temperature;
            float3 _BaseColor;
            float3 _HotColor;
            float _EmissionIntensity;
            
            struct appdata
            {
                float4 vertex : POSITION;
            };

            struct v2f
            {
                float4 pos : SV_POSITION;
            };

            v2f vert(appdata v)
            {
                v2f o;
                o.pos = TransformWorldToHClip(v.vertex.xyz);
                return o;
            }

            float4 frag(v2f i) : SV_Target
            {
                // 基于温度插值颜色
                float t = saturate((_Temperature - 50) / 50.0);
                float3 color = lerp(_BaseColor, _HotColor, t);
                
                // 高温区域增加自发光
                float emission = t * _EmissionIntensity;
                
                return float4(color * (1 + emission), 1);
            }
            ENDHLSL
        }
    }
}

4. Unity 与 Azure Digital Twins 集成

数据同步脚本:

using Azure.DigitalTwins.Core;
using Azure.Identity;
using UnityEngine;

public class DigitalTwinSync : MonoBehaviour
{
   
   
    private