Kratafa yi ma afuom adwumayɛfoɔ ɔkwan a wɔahyehyɛ sɛ wɔde bɛfa GPS beaeɛ nsɛm a ɛdi EUDR mmara mu wɔ plot biara so. Ɛka coordinates a wɔbɛfa ɔkwan a wɔfa so, device a wɔhia, nhwɛsodie a wɔde bɛhwɛ mu ne mfonini adansedie — nsɛm a ɛsɛ sɛ ɛwɔ mu paa ansa na wɔatumi akyerɛ geolocation adansedie wɔ Due Diligence Statement mu wɔ Article 9(1)(d) ase.
GPS beaeɛ nsɛm no nnyɛ adansedie automatically. Coordinates a bere a wɔfaa, device ho nsɛm ne nhwɛsodie ɔkwan nka ho no yɛ supplier nsɛm nko, ɛnyɛ adansedie. Kratafa yi boa afuom adwumayɛfoɔ sɛ wɔbɛfa metadata a ɛma GPS readings no bɛyɛ adansedie a wɔbɛtumi ahwɛ mu.
EUDR GPS beaeɛ nsɛm boaboa ano no kyerɛ sɛn?
EU Deforestation Regulation hwehwɛ sɛ operators bɛfa ne bɛma amaneɛ wɔ asase a wɔyɛɛ EUDR nnɔbaeɛ so nyinaa GPS beaeɛ ho. Article 9(1)(d) ase no, ɛkyerɛ sɛ GPS point baako ma plot a ɛyɛ hekta anan anaa ɛase, na polygon (ɔhyɛ nhina) ma plot a ɛboro hekta anan. GPS nsɛm no sɛ sɛ ɛyɛ pɛpɛɛpɛ sɛ wɔbɛtumi akyerɛ asase no pɔtee, na aban atumi de ahwɛ deforestation (kwaeɛ sɛeɛ) alert systems, protected area registries ne satellite mfonini a ɛgyina December 31, 2020 so.
Geolokasi yɛ nsɛm a wɔpam ase mpɛn pii wɔ due diligence ho. Coordinates a ɛnyɛ pɛpɛɛpɛ, akuraa level centroids, anaa polygon a vertex nnɔɔso no remma mmara nhwɛsodie mu ntene. Sɛ woyɛ ɔkwan a wɔfa so no yie wɔ afuom a, ɛboa ma wonhia sɛ wɔsan kɔ fa bio a ɛyɛ den.
Deɛ kratafa yi fa ho
Coordinate reference system ne pɛpɛɛpɛyɛ
- Coordinates nyinaa wɔ WGS84 (EPSG:4326) coordinate reference system mu
- Latitude ne longitude wɔ decimal ha 6 mu (ɛbɛyɛ mita 0.11 pɛpɛɛpɛyɛ wɔ equator no so)
- Coordinate format yɛ decimal degrees, ɛnyɛ degrees-minutes-seconds
- Sɛ local coordinate system firi mu na wɔdan no kɔ WGS84 a, kyerɛw datum transformation no
Plot nkyekyɛmu ne ɔkwan a wɔde bɛfa
- Hwɛ plot no kɛseɛ ansa na wofa coordinates sɛ wɔbɛhwɛ sɛ point anaa polygon na ɛsɛ
- Fa GPS point baako ma plot a ɛyɛ hekta 4 anaa ɛase (Article 9(1)(d))
- Fa polygon boundary ma plot a ɛboro hekta 4, yɛ vertex wɔ beaeɛ biara a ɔhyɛ no sakra
- Polygon biara sɛ sɛ vertex 4 wɔ mu paa (a closing vertex nka ho); ɔhyɛ a ɛyɛ den no de vertex pii di dwuma
- Kyerɛw polygon no wɔ GeoJSON format a ɛdi RFC 7946 mu (right-hand rule ma exterior rings)
Device ne ɔfafoɔ ho nsɛm
- Kyerɛw GPS device no make, model ne firmware version ma session biara
- Kyerɛw nea ɔfaa no din (din, organisation, adwuma)
- Kyerɛw da ne bere a wɔfaa no wɔ ISO 8601 format mu ne timezone (sɛ nhwɛso: 2026-05-19T09:30:00+00:00)
- Kyerɛw GPS accuracy a device no kyerɛeɛ (HDOP anaa metres) bere a wɔfaa no
- Kyerɛw satellite dodow a device no faa bere a wɔfaa no
Pɛpɛɛpɛyɛ threshold ne ɔkwan a wɔde bɛsan afa
- GPS accuracy threshold yɛ mita 10 anaa ɛyɛ yie sene saa ma open-canopy (beaeɛ a nnua mmɔ so)
- Sɛ canopy (nnua a abɔ so) mu accuracy boro mita 10 a, hyɛ agyiraeɛ sɛ wɔbɛsan afa anaa wɔde SBAS bɛboa
- San fa wɔ da anaa bere foforɔ sɛ wɔbɛnya satellite geometry a ɛyɛ yie sɛ threshold no annya
- Kyerɛw bere biara a wɔsan faa ne nea enti a wɔampene reading a ɛdi kan no so
Data nhwɛsodie
- Polygon self-intersection check atu mu (ɔhyɛ ntwam ne ho)
- Minimum area threshold wɔ mu (polygon a ɛyɛ hekta 0.01 ase no, hyɛ agyiraeɛ sɛ ɛyɛ mfomsoɔ)
- Hwɛ sɛ plot biara ne deɛ ɛbɛn no ntwitwa ne ho wɔ supply base koro no mu
- Coordinate range nhwɛsodie wɔ mu (latitude wɔ -90 ne 90 ntam, longitude wɔ -180 ne 180 ntam)
- GeoJSON structural validation atu mu wɔ ResourceLedger GeoJSON Validator anaa tool a ɛte saa so
Mfonini adansedie
- Fa geotagged mfonini wɔ plot no ɔhyɛ anaa mfimfini sɛ ɛbɛboa GPS coordinates no
- Hwɛ sɛ mfonini EXIF metadata (bere, GPS coordinates, device nsɛm) wɔ mu
- Point fa deɛ mfonini baako; polygon fa deɛ mfonini anan (baako ma ɔhyɛ nkyekyɛmu biara wɔ cardinal direction mu)
- Ka mfonini ne GeoJSON feature a ɛne no kɔ bom deɛ plot ID de
Sɛnea wɔde kratafa yi di dwuma
Anammɔn 1 — Siesie devices. Ansa na wɔakɔ afuom a, hwɛ sɛ GPS devices anaa mobile apps nyinaa wɔ WGS84 coordinates a decimal ha 6 wɔ mu. Kyerɛw device biara ho nsɛm.
Anammɔn 2 — Fa wɔ afuom. Wɔ plot biara so, hwɛ sɛ ɛyɛ point anaa polygon, fa coordinates sɛnea kratafa no kyerɛ, na fa geotagged mfonini. Kyerɛw accuracy na pam deɛ ɛboro threshold no.
Anammɔn 3 — Hwɛ data a wɔfaa no mu. Afuom adwuma akyiri no, fa GeoJSON files nyinaa mu kɔ structural ne spatial nhwɛsodie mu. Hyɛ self-intersections, overlaps ne accuracy a ɛnyɛ yie no agyiraeɛ sɛ wɔbɛsan afa.
Anammɔn 4 — Kora ne metadata. Kora GeoJSON files a wɔahwɛ mu ne bere a wɔfaa, device ho krataa, ɔfafoɔ din ne mfonini. Data yi nyinaa yɛ geolocation adansedie a ɛkɔ wo Due Diligence Statement mu.
Sɛnea wɔde di dwuma wɔ wo kurom
Fa ma obi nsa. Field team lead na ɔwɔ data collection quality ama geolocation campaign biara, ne GPS device provisioning ne GNSS configuration ansa na wɔakɔ afuom. Data manager validate GeoJSON files nyinaa ansa na wɔde ahyɛ wo central system mu — sɛ teams pii di dwuma parallel a, lead biara nsa ka ne campaign, na data manager hwɛ teams nyinaa mu.
Yɛ review schedule. Hwɛ device configuration ne satellite acquisition settings mu ansa na deployment biara. Campaign bere mu no, yɛ QA sample da biara — spot-check accuracy readings, validate GeoJSON structure, na confirm sɛ mfonini wɔde aka. Campaign biara akyiri, yɛ full validation pass. Sɛ recapture rates boro 10% a, tetea field teams fa capture methodology ho ansa na deployment a ɛdi so no.
Kyerɛ wo escalation kwan. Sɛ coordinates nnya accuracy thresholds anaa metadata nyɛ complete a, san de kɔma wɔn da no ara mu bere a team no da so wɔ beaeɛ hɔ. Sɛ team no afi hɔ dada a, flag record no na schedule return visit. Systematic failures — captures a wɔpo 15% boro so — escalate kɔ programme manager hɔ na ɔhwɛ root cause mu ansa na field work pii ayɛ.
Fa ka wo adwuma a ɛwɔ hɔ dada ho. Fa device provisioning hyɛ pre-visit planning mu: configure GPS units ne translator scheduling ne consent form preparation bɔ mu. Validation akyiri, fa GeoJSON feature biara ka farmer record a ɛfa ho no ho wɔ wo supply chain database mu na feed validated coordinates kɔ wo deforestation screening workflow mu. Fa geotagged mfonini ka record koro no ho na evidence package a ɛyɛ complete bɛba bere a wɔrehyehyɛ wo Due Diligence Statement.
Hwan na ɔhia kratafa yi?
- Afuom adwumayɛfoɔ a wɔfa GPS coordinates wɔ afuo anaa afuom (ladang/estet) so sɛ wɔresra supplier
- Compliance adwumayɛfoɔ a wɔhyɛ geolocation nhwɛsodie ne wɔhwɛ data a ɛfiri afuom teams anaa suppliers mu
- Data managers a wɔyɛ quality assurance adwuma ma spatial data ansa na ɛakɔ DDS submission pipeline mu
Nsɛm a wɔbisa mpɛn pii
Coordinate pɛpɛɛpɛyɛ bɛn na EUDR hwehwɛ?
Mmara no nkyerɛ nɔma bi pɔtee, nanso decimal ha 6 wɔ WGS84 mu (ɛbɛyɛ mita 0.11) yɛ standard a implementing bodies ne technology providers de di dwuma. Decimal ha a ɛsua no ma confusion a aban bɛtumi abisa ho wɔ nhwɛsodie mu, titire sɛ wɔde bɛhwɛ high-resolution satellite mfonini ho a.
Da bɛn na mehia polygon boundary na ɛnyɛ point baako?
Article 9(1)(d) hwehwɛ polygon boundary ma plot biara a ɛboro hekta 4. Ɛase deɛ, GPS point baako yɛ. Susu anaa hwɛ plot no kɛseɛ ansa na wofa. Sɛ wonnim pɔtee a, fa polygon — polygon bɛtumi ayɛ centroid daa, nanso centroid ntumi nyɛ boundary bio sɛ wofi afuom aba a.
Sɛ GPS accuracy boro mita 10 wɔ nnua a abɔ so (dense canopy) ase a, menyɛ deɛn?
Nnua a abɔ so, asase a ɛkɔ soro, ne satellite geometry a ɛnyɛ yie bɛtumi ama accuracy aboro mita 10. Kyerɛw reading no na hyɛ agyiraeɛ sɛ wɔbɛsan afa. San kɔ bere foforɔ sɛ satellite geometry bɛyɛ yie, fa external GNSS antenna sɛ ɛwɔ hɔ a, anaa fa firi beaeɛ a ɛtew a ɛbɛn hɔ na kyerɛw offset no. Mfa reading a ɛnyɛ yie biara a wonkyerɛw sɛ ɛwɔ limitation.
Coordinates a ɛfiri supplier hɔ yɛ adansedie a ɛdɔɔso?
Coordinates a ɛfiri supplier hɔ a independent verification nka ho no yɛ supplier nsɛm nko, ɛnyɛ adansedie. Operators sɛ sɛ wɔde wɔn ankasa ɔkwan hwɛ mu: hwɛ satellite mfonini ho, yɛ spot-check farm visits, anaa fa system a ɛfa device attestation ne bere a wɔfaa wɔ beaeɛ a ɛfiri no di dwuma. Adansedie a ɛsɛ sɛ ɛwɔ hɔ no gyina operator so, ɛnyɛ supplier.
Kratafa yi boa EUDR due diligence geolocation. Sɛ wopɛ platform a ɛfa, ɛhwɛ mu na ɛkora geolocation adansedie ne device attestation ne satellite nhwɛsodie a ɛwɔ mu a, bɔ demo ho nkra na hwɛ sɛnea ResourceLedger yɛ adwuma.