lcly-data-admin/app/Enums/DeviceType.php

<?php

namespace App\Enums;

enum DeviceType: int
{
    case Monitor = 1;        // 监控设备
    case Soil = 2;        // 土壤设备
    case WaterQuality = 3;        // 水质设备
    case Meteorological = 4;        // 气象设备
}