{
    "id": null,
    "title": "Smart Intersection - Real-time Monitoring",
    "tags": ["smart-intersection", "traffic", "real-time"],
    "timezone": "browser",
    "refresh": "5s",
    "time": {
      "from": "now-15m",
      "to": "now"
    },
    "panels": [
      {
        "id": 1,
        "title": "System Performance",
        "type": "stat",
        "gridPos": {"h": 8, "w": 12, "x": 0, "y": 0},
        "targets": [
          {
            "expr": "from(bucket: \"traffic_monitoring\") |> range(start: -1m) |> filter(fn: (r) => r._measurement == \"performance\" and r._field == \"fps\") |> last()",
            "refId": "A"
          }
        ],
        "fieldConfig": {
          "defaults": {
            "color": {"mode": "thresholds"},
            "thresholds": {
              "steps": [
                {"color": "red", "value": 0},
                {"color": "yellow", "value": 15},
                {"color": "green", "value": 25}
              ]
            },
            "unit": "fps"
          }
        }
      },
      {
        "id": 2,
        "title": "GPU Usage",
        "type": "stat", 
        "gridPos": {"h": 8, "w": 12, "x": 12, "y": 0},
        "targets": [
          {
            "expr": "from(bucket: \"traffic_monitoring\") |> range(start: -1m) |> filter(fn: (r) => r._measurement == \"performance\" and r._field == \"gpu_usage\") |> last()",
            "refId": "A"
          }
        ],
        "fieldConfig": {
          "defaults": {
            "color": {"mode": "thresholds"},
            "thresholds": {
              "steps": [
                {"color": "green", "value": 0},
                {"color": "yellow", "value": 70},
                {"color": "red", "value": 90}
              ]
            },
            "unit": "percent",
            "max": 100,
            "min": 0
          }
        }
      },
      {
        "id": 3,
        "title": "Object Detection Over Time",
        "type": "timeseries",
        "gridPos": {"h": 9, "w": 24, "x": 0, "y": 8},
        "targets": [
          {
            "expr": "from(bucket: \"traffic_monitoring\") |> range(start: -15m) |> filter(fn: (r) => r._measurement == \"detection_events\" and r._field == \"vehicle_count\") |> aggregateWindow(every: 30s, fn: mean)",
            "refId": "Vehicles"
          },
          {
            "expr": "from(bucket: \"traffic_monitoring\") |> range(start: -15m) |> filter(fn: (r) => r._measurement == \"detection_events\" and r._field == \"pedestrian_count\") |> aggregateWindow(every: 30s, fn: mean)",
            "refId": "Pedestrians"
          }
        ],
        "fieldConfig": {
          "defaults": {
            "color": {"mode": "palette-classic"},
            "unit": "short"
          }
        }
      },
      {
        "id": 4,
        "title": "Violation Events",
        "type": "barchart",
        "gridPos": {"h": 8, "w": 12, "x": 0, "y": 17},
        "targets": [
          {
            "expr": "from(bucket: \"traffic_monitoring\") |> range(start: -1h) |> filter(fn: (r) => r._measurement == \"violation_events\") |> group(columns: [\"violation_type\"]) |> count()",
            "refId": "A"
          }
        ]
      },
      {
        "id": 5,
        "title": "Camera Status",
        "type": "table",
        "gridPos": {"h": 8, "w": 12, "x": 12, "y": 17},
        "targets": [
          {
            "expr": "from(bucket: \"traffic_monitoring\") |> range(start: -5m) |> filter(fn: (r) => r._measurement == \"detection_events\") |> group(columns: [\"camera_id\"]) |> last()",
            "refId": "A"
          }
        ]
      },
      {
        "id": 6,
        "title": "Processing Time",
        "type": "timeseries",
        "gridPos": {"h": 8, "w": 24, "x": 0, "y": 25},
        "targets": [
          {
            "expr": "from(bucket: \"traffic_monitoring\") |> range(start: -15m) |> filter(fn: (r) => r._measurement == \"performance\" and r._field == \"processing_time_ms\") |> aggregateWindow(every: 30s, fn: mean)",
            "refId": "A"
          }
        ],
        "fieldConfig": {
          "defaults": {
            "color": {"mode": "continuous-GrYlRd"},
            "unit": "ms"
          }
        }
      }
    ]
  }