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QFieldを使用した生態学的測量の効率性の改善

Ryan Bell, GISコンサルタント, Delta-Simons環境コンサルタント

目標

To conduct ecological surveying more efficiently than has been previously achieved through traditional non-digital techniques, using QField as a medium for standardised and flexible field data collection.

プロジェクトに必要なこと

To facilitate effective field work, regular consultation with the Ecology team is required to ensure that QField projects are prepared appropriately. Firstly, basemaps comprising aerial imagery and proposed development plans are prepared by georeferencing and constructing pyramids in QGIS. Point, line and polygon vector layers are then created to support digitisation and associated data collection. Using a range of widgets, attribute fields are customised to meet the requirements of the Ecology team. These include:

スタイル

drop-down list of selectable styles tailored for conducting ecological surveys

縮尺

drop-down list of selectable scales for point and line feature

情報

space for inserting a feature description

画像

location for images to be captured and stored

ジオメトリ

contains self-populated geometry values, e.g. area, perimeter, length

タイムスタンプ

records the time and date that a feature was created/last modified

Figure 1 - Overview of the traditional workflow in ecological surveying at Delta-Simons compared with the workflow created using QField. Single-headed arrows indicate the direction of one-way communication, whereas double-headed arrows indicate two-way conversation.
Figure 1 - Overview of the traditional workflow in ecological surveying at Delta-Simons compared with the workflow created using QField. Single-headed arrows indicate the direction of one-way communication, whereas double-headed arrows indicate two-way conversation.

結果

Delta-Simons are saving approximately 40% of the time previously consumed by traditional ecological field data collection. QField has significantly improved the ecological surveying workflow by:

  • 紙の図面からGISのアウトプットを再作成する必要がなくなる
  • GISでのアウトプットに必要な全体的な修正の削減
  • コミュニケーションチャネルの改善(図1を参照)
  • データの精度と品質の改善

Delta Simons

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