GPS 정밀 토지 면적 측정기 - 스마트 손해평가

Have you ever been flustered in the field by tangled and overlapping cadastral map lines, disconnecting internet, and complex manual calculations?

'Smart Loss Assessment' is an ultra-precise spatial information and field survey solution designed to allow Crop Disaster Insurance Loss Adjusters to complete everything from complex field surveys to yield calculations with just a single app.

🧮 Field-Customized Assessment Calculator Exclusively for Loss Adjusters

Leave Excel and handwritten calculators in your car! We provide an automatic calculator dedicated to 11 crop items that fully applies the formulas found in the operational manuals.

🌶️ Chili Pepper Production Cost Guarantee (Latest 2026 Model): Automatic verification of logical date errors by pre- and post-harvest periods, and warnings for exclusions when the regional coverage period (130/150 days) is exceeded. Automatic application of recognition rates by pest and disease grade (Grades 1–3) and preparation stage production cost coefficient (55.5%)

🍏 4 types of fruit trees (Sweet Persimmon/Astringent Persimmon/Apple/Pear): Support for precise survey of fruit bruising rate and leaf fall rate (automatic calculation of elapsed fruit days)

☀️ [NEW] Sunscald damage to 4 types of fruit trees: Inputting fruit set damage and fruit drop damage (total/sample) automatically calculates the number of sunscald-damaged fruits, the number of recognized reduced fruits, and the damage rate. Reflects the revised damage recognition coefficient (new 30% type: 30%, 50%, 80%, 100%) and compensation standards (over 6% for Apple, Pear, and Sweet Persimmon; over 4% for Astringent Persimmon)

🍎 (Post-thinning) Fruit set: Inputting the number of enrolled, dead, or uncompensated trees by variety automatically calculates the number of trees subject to survey and the number of allocated samples in 0.1 seconds. Automatic group recognition upon entering variety name, separates the input field for sample fruit set from the tree count card and groups them at the bottom of the screen, displaying variety name and year in each sample cell. Use the sample hiding function to view only the results cleanly.
🌽 Corn Yield: Calculates damaged yield, loss amount, deductible, and estimated insurance payout upon entering the number of upper, middle, and lower sample sections, furrow specifications, subscription price, insurance coverage amount, and deductible ratio. Automatic input of subscription prices by region (Gangwon 2,044 · Nationwide 1,793 KRW/kg)

🍵 Tea Damage Rate: Input number of previously harvested/current teas per 2 buds → Automatic conversion of effective weight index → ​​Calculation of final damage rate

🧄 Garlic Yield: Automatic application of warm-climate/cold-climate variety coefficients and estimated growth ratios, automatic determination of planting density suitability

🧅 Onion Yield: Automatic calculation of estimated growth ratios and damage rate based on remaining days

🥔 Potato Yield: Automatic conversion of damage severity ratios by pest and disease grades 1, 2, and 3, and calculation of damage rate

🎃 Sweet Pumpkin Yield: Damage rate calculated by summing yields from the 3rd survey

🫐 Blueberry: Calculation of damage rate linked to 3 stages: flower bud → flower → fruit (automatic reflection of weights)

🌾 Paddy Crops (Rice / Glutinous Rice / Flourishing Rice / Wheat / Barley / Oats): Supports three survey methods: Sample Survey, Complete Enumeration, and Quantity Factor Survey; 70% limit for single-incident pest/disease incidents and automatic application of standard moisture content.

▷ Calculator Common Convenience Features

· Automatic contract change warning if actual area discrepancy exceeds 10% compared to insured area

· Automatic calculation of estimated average yield

· Automatic generation of commas (,) for monetary units and automatic row addition if sample interval is not met

· Automatic high-quality capture of the entire summary report and saving to gallery

💾 Multi-Survey History Management (Pro)

Exerts powerful capabilities when conducting repeated surveys of the same crop across multiple farmlands. · Enter Farm Name/Land Name and Save → 100% Restore and Load at Any Time

· Automatic Filtering by Item (Onion records only displayed in the Onion tab, Chili records only in the Chili tab)

· Save and restore all calculator survey results, including sunscald damage, as history

· Capture the entire summary report and automatically save it to the gallery in high quality

🗺️ Ultra-Precise Area Measurement & Cadastral Map Fusion

The area in square meters (㎡) and flat areas is calculated instantly simply by walking or drawing the boundary of a single plot of land on the screen.

· Multi-zone Measurement: Measure and sum multiple plots at once. If you draw uncompensated areas such as ponds, cemeteries, and buildings as 'excluded zones,' they are accurately deducted from the total area.

· Individual Zone Editing: Pinpoint and delete or redraw only incorrectly drawn zones.

· Instant Error Rate Check: Enter the subscription area (standard) to compare the error rate (%) with the actual area in real-time, supporting the decision on whether to modify the contract.

· Slope Correction Area: Measure the slope angle to automatically correct the planar projected area to the actual slope area (useful for mountain orchards).

· Measurement Accuracy Management: Prevents inaccurate starting points by using a gate to ensure the first point is marked only within a GPS error of 12m, and secures a stable trajectory by reducing shaking through Position Smoothing (EMA).

🪄 One-Click Cadastral Map Extraction and Incorporated Parcel Analysis (Pro)

· Automatic Parcel Drawing: Long-press a desired parcel to automatically extract cadastral boundaries in just 1 second via integration with the National Spatial Information System (VWorld) and convert them into measurement zones.

· Area Analysis by Parcel: Converts land classifications (building land, dry field, paddy field, etc.) for parcels incorporated within the measurement zone and Automatic analysis of incorporated area (㎡·pyeong·ratio). Fine error of less than 1% and automatic filtering of roads and rivers

· Interpretation Guide: Since there may be discrepancies between the screen location and the actual location in aerial photographs, the app advises prioritizing walking (GPS) measurements when boundaries are ambiguous.

✈️ Viewing Historical Aerial Photos (Pro)

· View high-resolution aerial photographs from the National Geographic Information Platform by year (2011–present) to grasp the history of farmland development, such as orchards, and topographic changes at a glance.

· Use this to verify damage and determine development dates by comparing pre- and post-disaster points.

· Selecting a year without data automatically searches for the nearest new year and optimizes for mobile rendering.

🛰️ Multi-Map Engine & Powerful Offline Mode

· Freely switch between Kakao/Naver cadastral maps + Google satellite imagery + Ministry of Land, Infrastructure and Transport historical aerial photographs + offline canvas as needed.

· Compass integration allows your location marker to rotate in real-time according to your actual viewing direction, maintaining a sense of direction on-site.

· Offline Mode: Even in remote mountainous areas or places without internet access, it automatically switches to a blank canvas without consuming data to continue measurements. Fully supports two-finger zoom and drag panning.

🚶 Field-Customized GPS Tracking (Walking/Vehicle Modes)

· Automatically plots points along the trajectory of walking or driving, calculating area in real-time.

· GPS Signal Strength Display: Check the current location error radius (±m) at a glance as Good, Medium, or Weak, and display the number of measured points in real-time.

· Walking Mode: Automatically filters out GPS signals with large errors based on walking speed for precise measurements while walking.

· Vehicle Mode (Pro): Rapidly measure large plots with a fast measurement cycle optimized for high-speed movement such as tractors and vehicles.

🛠️ Field Survey Tool Set

· Haptic Quantity Counter: Accurately count fruit set and damaged crops using vibration feedback without looking at the screen. Simultaneous counting of up to 20 items, prevents accidental touches with a large ➕ button and isolated reset/delete buttons on the left

· Sample Number Display: Displays sample numbers for field photos prominently on the full screen, allowing for immediate shooting or capture

· Field Memo: Records survey details, farmer interview logs, and specific field observations on the spot

💾 Data Backup & Restore (Pro)

· Survey history, measurement records, field memos, and counters are stored only on the device; therefore, creating backup files and saving them via KakaoTalk, email, or Google Drive ensures safety

· Select 'Data Only' or 'Include Images' to store data lightly according to your capacity, and restore data exactly as is even when changing devices

· Automatically prompts for backup when a certain amount of measurement records accumulates to prevent the loss of valuable data

🎯 Highly recommended for these users!

· Crop damage insurance adjusters and field investigators who need accurate damage area calculations and meticulous yield survey formulas every day

· Real estate agents and developers who need land inspections, cadastral map verification, and parcel analysis

· Agricultural workers and those returning to farming who want to personally verify the boundaries and area of ​​their land

※ Important Note

The cadastral maps and area calculation information provided in this app are reference data based on the National Spatial Information Open API and device GPS modules. They cannot be used as legally valid drawings or official survey data. Additionally, the values ​​calculated by the damage rate calculator may differ slightly from actual computer input values ​​due to revisions in operational manuals or differences in decimal point processing standards. Please refer to the Terms and Conditions for details.