EXPRESSION OF INTEREST National Land Records Modernization Project Technical Fair, 2009
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Transcript of EXPRESSION OF INTEREST National Land Records Modernization Project Technical Fair, 2009
www.vayamtech.com April 20, 2023
EXPRESSION OF INTEREST
National Land Records Modernization Project Technical Fair, 2009
www.vayamtech.com April 20, 2023
Brief Profile of Vayam? Complete Solution Provider: IT Consultancy, Software Development, System
Integration, ERP and Data Warehousing solutions, GIS and Remote Sensing solutions, e-Governance Solutions, Portal Development solutions.
Wide Experience of Working with Government Sector.
Experience of e-Governance Projects- e-districts, Indian Patent Office and e-Chindwara Portal.
Understanding of the subjects because of resources with experience in Development Sectors, who can provide the complete solutions based on understanding of the projects.
Experience of Turnkey Project.
Financially stable company.
Quality Accredited company
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Our Topic of Discussion: Computerization of Land Records and Survey/resurvey of cadastral maps
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Data processing strategy
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Methodology
Existing Non-Existing Partially existing
Cadastral Data
Existing
Scanning
Geo referencing
Digitization, layering and symbolization
Feature coding
Mosaic at Tehsil and district level
Scrubbed 300 dpi for normal and 400 dpi coloured for damaged Musavis
Digitized maps will match 1:1 with existing Musavis
Mosaic of Intra Village Level
Attribute data attachment
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Digital topographic Map Planning and Preparation
Scanning of Cadastral Map
Coordinate Transformation
Scanning of Adjacent Maps
Correction1st print and error check
Continuous cadastral Map
2nd print and error check
Overlap of topographic map and Cadastral Map
Product of Administrative Zone map
3rd print and error check
Correction
Correction
Entering Numerical Terrier
Scanning
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Mapping specification
Capture scale shall not fall outside the range of 1:1000 to 1:5000
Cassini Projection are being followed. On Cassini Projection the North-South stretching of scale is not balanced by any East - West change of scale except for very small areas.
Datum shall be Everest Spheroid. Units shall be Square meters.
Source shall be Digital Ortho-imagery (in ideal cases), that has a verified minimum horizontal accuracy of 10 meters or better, and a minimal pixel resolution of 1 meter.
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Cadastral Mapping and Edge Matching
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Edge Matching and Mosaicing
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Edge Matching Technique With the Affine transformation ,using four points on each
map cadastral map are pre-matched with road maps.
Sequential Auto-matching: There can be lot of boundary mismatches following the Affine transformation, so an alogirthm is followed for sequential auto matching.
Boundary Line based Automated Adjustment: This algorithm is developed for adjusting cadastral lines based on given boundary lines, the method has three parts: Searching the conflicted cadastral lines based on given
boundary lines; Moving the conflicted cadastral lines to given boundary lines; Related cadastral line adjustment.
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Final Output with standard symbology (Alamatts )
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Geo-referencing on satellite Images
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Thematic Mapping
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Attributes of Land Records
Record of Rights: It contains the ownership details of each parcel, sub-divisions etc.
Crop details: These are updated thrice/twice in the States based on crop seasons and inspection reports giving details of crops sown, area, cultivators and yield details.
Pedigree table – This is pedigree sheet giving the details of family history, relationships with ownership details
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Data Analysis
Partially existing
Attribute Data
Existing Non-ExistingExisting
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Attributes attached from Bhulekh
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Examples of Database Structure
Registration Details
Payment Details
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Data Analysis
Partially existing
Attribute Data
Existing Non-ExistingNon-Existing
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Developing Software for capturing new data
File Edit
Project
Entry Query
Help
drive
Project Entry Query
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Non Existing Spatial Data
Non-Existing Partially existing
Spatial Data
Existing Non-Existing
Geo referencing of HR satellite Maps
Vectorization of Land Parcels
Creation of Topology and closed parcels
ETS and GPS based Georegistration
Generation of Database by Contact Survey
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Creation of New Cadastral Map
The process of creating a cadastral system can be considered in two parts;
the legal or quasi-Iegal and
administration area which is responsible for adjudication of boundaries and rights in land and the creation of an efficient recording system for those rights in appropriate registers; and the technical area which includes cadastral surveying and mapping.
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Approach for Cadastral Mapping There are two basic approaches which may be adopted for
cadastral surveying and mapping; ground survey techniques combination of photogrammetric/Remote sensing and ground survey
techniques.
Ground survey techniques are the basis of most cadastral survey systems. since photogrammetry has only been used for cadastral purposes in the last 30 years or so.
Ground survey techniques suit the sporadic isolated survey approach which is usually a component of land registration. conveyancing or alienation systems based mainly on the "user pays" principle. Such systems are usually the quickest to introduce, and the cheapest and the most expedient for Governments in the short-term.
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Survey of Cadastral Maps
Composition of Cadastral Maps using total station and real time Kinematic GPS survey.
GIS of Cadastral Maps
Azimuth Computation
Traverse Computation
Plotting of Cadastral Map in P-70 sheets from the Control Points derived from the Traverse Computations
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Generation of New Cadastral Information
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Doing Land Survey using modern technology
Instrument Typical Errors
Distance Horizontal Angle Vertical Angle Elevation
Autolevel (Stadia or Tape) +/- 10 +/- 0.001 to 0.005 m#
Thedolite +/- 10 – 30” +/- 10 – 30” +/- 5mm#
Total Station +/- 5 -10 mm at 200m# +/- 10 – 10”# +/- 10 – 10”# Maybe +/- 2mm*
GPS +/- 1 cm with post processing +/- 5 cm with post processing
Laser Range Finder
+/- 0.15 – 0.20m # +/- 0.50 # +/- 0.20 # Depends on distance and Vertical angle accuracy
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Generation of Cadastral Data model
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Partially Existing Cadastral Map
Non-Existing Partially existing
Spatial Data
Existing
Scanning and Digitizing old cadastral maps
Vectorization of Divided land parcels
Creation of Topology and closed parcels
Ground Verification
Partially existing
Registering with satellite Images
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Mutation Digitization
2241/1
2241/2
2241/3
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Adding Mutation Data
Parcel
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Updation of Mutation in existing data table
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Mutation Update
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Issues of Land Records Mapping