{
  "status": "success",
  "row_count": 0,
  "data": [],
  "columns": [
    {
      "key": "monitor_name",
      "label": "单体电池名称"
    },
    {
      "key": "voltage",
      "label": "电压 (V)"
    },
    {
      "key": "battery_temperature",
      "label": "温度 (℃)"
    }
  ]
}