Simple AR App

【ＪＰＳ】位置計測をよりカンタンに

About this app

Simple AR is a simple AR (Augmented Reality) application designed to support surveying, civil engineering, construction, and site inspection tasks.

It accurately overlays coordinate data (CSV, KML) acquired and designed on-site onto the smartphone's camera image, providing powerful support for visual location verification.

[Main Features]
■ Diverse Data Import
- Supports importing CSV and KML files.
- Flexible column assignment (point name, latitude/X, longitude/Y, height/Z).
- Supports Japanese plane rectangular coordinate systems (1-19 systems) and UTM coordinate systems.

■ Integration with External GNSS Receivers & RTK Positioning
- Supports connection to external GNSS receivers via Bluetooth and USB serial communication, in addition to the smartphone's built-in GNSS.
- Built-in NTRIP client function. By inputting information from your NTRIP caster (distribution station), ultra-high-precision centimeter-level positioning is possible using RTK (Real-Time Kinematic) positioning.

■ Accurate Elevation Correction Using Geoid Models
- By loading Japanese geoid models (.isg format), accurate conversion from ellipsoidal height to elevation is possible. This enables precise AR display, including height.
- The height mode can be switched with a single touch from "Ignore," "Elevation," and "Ellipsoidal Height" depending on the application.

■ Convenient Field Recording Tools
- In addition to AR display confirmation, it features "Continuous Photo Taking (Photo Scan Mode)" while recording GNSS positioning status and NMEA logs.
- High-precision location information and camera height offset information are directly written to Exif information, allowing analysis as a 3D point cloud using photogrammetry software.

【Notes】
* To perform high-precision AR display (RTK positioning), an external GNSS receiver and NTRIP distribution service contract and network environment are required separately.
* Because it depends on the accuracy of the smartphone's magnetic sensor, the direction may become unstable. In that case, restart your smartphone or initialize the magnetic sensor and check the operation. * While this app can operate using only the built-in GNSS (smartphone GPS), accuracy depends on the device's positioning capabilities, potentially resulting in errors of several meters to tens of meters.

Images captured using this app's continuous shooting function in combination with RTK-GNSS can be processed for photogrammetry on a Windows PC using "Picto3D" (available at the following website). This allows for precise coordinate measurement on the image and output as point cloud data.

https://www.qzss4survey.com/jps/picto3d

What’s new

Improved notifications and other features for foreground services; initial version released.