Failure-free Field Use of LRTK 360 Construction Records: 360° Record Management Anyone Can Do

Accurately recording and managing construction progress on site is key to project success. However, traditional photo records have faced various issues such as missed shots, incorrect location information, and the hassle of organizing photos. Enter LRTK 360 construction records. This is an innovative recording method that combines a 360° camera with high-accuracy positioning technology, allowing anyone to easily and completely capture all-around site conditions. In this article, we explain the features of LRTK 360 construction records and how to use them on site, and introduce key points for failure-free record management.

Table of Contents

• What is LRTK 360 construction records?

• Why 360° records are “failure-free”

• Benefits of using LRTK 360 on site

• Practical procedure for LRTK 360 construction records

• Key points for failure-free operation

• 360° record management anyone can do

• Use cases: How LRTK 360 changes the site

• Conclusion

• FAQ

What is LRTK 360 construction records?

LRTK 360 construction records is a field recording system that integrates real-time kinematic (RTK) high-accuracy GNSS positioning with 360° camera imaging. The dedicated device houses a high-sensitivity RTK-GNSS receiver and a high-resolution 360° camera, and with a single press of the shutter it simultaneously records photos of all directions and the precise coordinates (latitude, longitude, height) of the shooting location. The captured data is saved in a smartphone or tablet app and, when uploaded to the cloud, is automatically organized and displayed on a map. By completing photo and position recording in one action, LRTK 360 dramatically improves on-site recording efficiency and accuracy.

Why 360° records are “failure-free”

360° camera-based record management is said to be “failure-free” for the following reasons.

• Prevents oversights: One 360° photo records the entire surroundings in a single capture, so the shooter doesn’t need to worry about forgetting to photograph a particular direction. Because the site situation can be preserved without omissions, you can avoid problems like later discovering “we don’t have a photo from that angle.”

• High-accuracy position tags: LRTK 360 enables centimeter-level positioning. While a typical smartphone GPS can deviate by about 5-10 m (16.4-32.8 ft), RTK can reduce errors to about 3 cm (1.2 in). Because the photo data is automatically tagged with the shooting coordinates, you won’t have record errors like “I don’t know where this was taken.” Even beginners can be confident they won’t fail at recording positions.

• Real-time confirmation: You can check positioning accuracy (RTK Fix status, etc.) in real time on the app while shooting. Since you simply take the shot once accuracy is ensured, even non-experts can consistently create high-precision records. If radio conditions are poor, support for Michibiki satellite augmentation signal (CLAS) allows positioning even outside communication coverage, so stable recording is possible in mountainous areas as well.

• Automated data organization: Uploading to the cloud automatically organizes photos on a map and manages them chronologically, eliminating the need to manually name files or paste them into ledgers. Human errors in organization are eliminated, preventing missed records.

As described above, by combining 360° records with high-accuracy positioning, LRTK 360 can greatly reduce “failures” such as missing or incorrect records.

Benefits of using LRTK 360 on site

There are many advantages to using LRTK 360 construction records on site. Here are some main benefits.

• Preserve the entire site situation: Even on large construction sites, each shooting point retains a 360° image and accurate position information, allowing you to preserve the overall site situation. For example, if you periodically perform 360° captures at the same points from before construction to completion, you can review progress over time and quickly spot changes or problem areas.

• Easier progress management and reporting: Photos recorded with LRTK 360 can be viewed on a map in the cloud with pins for shooting locations. Progress managers can grasp the entire site at a glance by viewing all shooting points on the map. Because photos can be arranged and compared chronologically, you can intuitively show before-and-after conditions. Creating photo-attached reports becomes smoother and explanations become more persuasive.

• Smoother communication: 360° site photos are powerful for sharing information with stakeholders. Cloud-stored photos can be shared via links with project participants, so people in remote offices can virtually experience the site. This improves shared understanding among site supervisors, clients, and subcontractors, speeding up meetings and instructions.

• Enhanced quality and safety management: Because recorded photos include accurate positioning and timestamps, they are highly reliable as evidence for quality and safety management. If a problem occurs later, you can precisely trace when, where, and what the condition was, aiding root-cause analysis and countermeasure planning. This also helps prevent construction defects.

• Integration with surveying data: Photos obtained with LRTK 360 are unified in a global coordinate system, making them easy to combine with other surveying results. The cloud can overlay 360° photos with point cloud data (3D scan data), enabling measurements of distances and areas that photos alone can’t capture. Centralized management of photos and surveying data greatly improves efficiency for drawing creation and quantity calculations.

Practical procedure for LRTK 360 construction records

Here is a general procedure for using LRTK 360 on site. It’s a simple flow anyone can follow to achieve on-site recording DX (digital transformation).

• Preparation: Prepare the LRTK 360 device and the dedicated app. Connect the device battery and antenna, and link it with a smartphone/tablet via Bluetooth or Wi‑Fi. Before going to the site, check reception status and confirm that RTK correction information (such as Michibiki CLAS) can be received.

• Plan shooting points: Plan in advance which points on the site to record. For progress management, select representative points for each work section; for infrastructure inspections, list inspection points for each facility. Decide on clear markers or reference points so you can shoot from the same positions each time for easy comparison.

• 360° shooting: On site, first confirm on the app that RTK “Fix” (high-accuracy positioning) has been obtained. Once accuracy is ensured, press the shutter button to capture a 360° photo. A single capture records the entire surroundings, so there is no need to shoot multiple directions. If needed, take additional close-up shots of important parts to record details.

• Save and upload data: Immediately after shooting, the photo data is saved on the smartphone with high-accuracy coordinates attached. If there is network connectivity on site, upload to the cloud as you go so it is reflected on the map instantly. If you are out of coverage, the device will store the data locally so you can upload it later from the office.

• Confirm and share records: Once photos are organized on the cloud map, review the images for each point on a PC or tablet to confirm content. Check for any missed shots and perform additional shooting if necessary. If everything is fine, send a share link to stakeholders so office staff can access the information. This enables near-real-time sharing of the latest situation between the site and the office and eliminates ledger transcription work.

Key points for failure-free operation

To operate LRTK 360 construction records more reliably, here are several points to keep in mind.

• Ensure RTK Fix is obtained: To get high-accuracy position records, it is crucial to shoot when the RTK Fix is obtained. Check the app display for “Fix” or high-accuracy mode, and wait until accuracy stabilizes before shooting. Don’t compromise here to avoid errors in important records.

• Reproducibility of shooting position: For repeated fixed-point observations, shooting from as close to the same position and height as possible ensures accurate photo comparisons. Use tripods or poles, or mark the floor or wall to improve reproducibility. Small measures can prevent failures like “we can’t compare because the positions shifted.”

• Charge and inspect equipment: Before shooting on site, confirm battery levels and antenna connections to avoid power loss or malfunctions. For prolonged continuous operation, bring spare batteries and be fully prepared. Also, make a habit of cleaning lenses before shooting since dirt can degrade image quality.

• Data backup: Although data uploaded to the cloud is safely stored, consider exporting important data and keeping a separate in-house backup as a precaution. This ensures data protection in case of a cloud service issue.

• Operation training and dissemination: While the tool is simple to use, provide basic operation training so all site staff can handle it smoothly. Share app usage and device handling procedures so others can record in the absence of the primary person, further reducing the risk of missed records.

360° record management anyone can do

The real value of LRTK 360 construction records lies in its ease of use, which allows anyone to become a site recorder. Traditionally, photo shooting and positioning were left to staff with specialized knowledge. But with LRTK 360, operation is as simple as taking a photo with a smartphone, and anyone can create high-accuracy records without special surveying skills.

For example, a less-experienced junior site supervisor can simply power on the LRTK 360 device and follow the app prompts to shoot, and obtain data with accuracy comparable to that recorded by a veteran surveyor. This is because complex processes like RTK positioning and cloud integration are handled automatically by the system.

Even older technicians who are less comfortable with IT can complete records by pressing the shutter like a traditional digital camera, so there is no need to worry about confusion. By enabling everyone on site to participate in record-keeping, recording becomes a team effort rather than the responsibility of a few, resulting in reliable construction records without omissions or mistakes.

Use cases: How LRTK 360 changes the site

What kinds of changes occur on site when LRTK 360 construction records are introduced? Here are some examples illustrating the effects.

• Progress records on large-scale projects: On a civil engineering site with a wide area, LRTK 360 was used to comprehensively track progress in each work section. From before construction to completion, fixed 360° captures were taken once a week at key locations. Because photos for each location could be compared chronologically in the cloud, even small changes were not missed and could be shared with all stakeholders. As a result, site meetings featured concrete progress reports while viewing photos, reducing rework due to misunderstandings.

• Bridge inspection use: LRTK 360 is also powerful for inspecting aging bridges. Cracks on bridge piers were recorded in 360° photos tagged with high-accuracy RTK positions. This allows precise identification later of “which bridge and which part has what damage.” Not only inspectors but also engineers planning repairs could view the photos on the cloud and assess deterioration without traveling to the site. Consequently, lead times from inspection reporting to repair planning were shortened and maintenance efficiency improved.

• Before-and-after comparison verification: In earthworks that significantly change terrain, comparing pre-construction and post-construction conditions is important. With LRTK 360, pre- and post-construction 360° photos can be obtained at the same coordinates, enabling accurate overlay and analysis of before-and-after conditions. For example, changes in fill volume and surrounding landscape can be seen at a glance, aiding environmental impact assessments. While traditional methods sometimes struggled with slight position shifts that made precise comparison difficult, high-accuracy position alignment now enables quantitative verification.

Thus, LRTK 360 construction records are used in various on-site scenarios, contributing to improved operational efficiency and recording accuracy. Accumulated data that combines photos and position information becomes a valuable asset for future construction planning and maintenance.

Conclusion

This article introduced methods for applying LRTK 360 to construction records and presented key points and concrete procedures for failure-free 360° record management. By combining 360° photos with RTK positioning, LRTK 360 enables anyone to easily create high-accuracy construction records and is a powerful tool for on-site DX. It prevents failures such as missed records and position errors while contributing to information sharing and efficiency, making it effective across a range of roles from construction managers and site supervisors to surveying personnel.

Additionally, LRTK is notable for being usable not only for photo records but also for simple surveying. Using dedicated smartphone apps and cloud functions, you can easily measure distances and areas on site or obtain 3D point cloud data without complex equipment. In other words, LRTK integrates photographic records and surveying tasks into an accessible form for everyone, dramatically improving on-site productivity. If you’re interested in streamlining surveying tasks alongside construction record efficiency, be sure to check LRTK solutions.

FAQ

Q: What do I need to start using LRTK 360 construction records? A: Basically, you need the LRTK 360 camera-integrated device itself and a smartphone/tablet for operation (with the dedicated app installed). A network connection (mobile data or Wi‑Fi) on site is desirable for using cloud services, but since satellite augmentation signals can enable positioning offline, recording itself is possible in offline environments. You can upload to the cloud later from the office after shooting.

Q: Can on-site staff use it even if they are not tech-savvy? A: Yes. LRTK 360 is designed for ease of use and operates in a workflow very similar to taking photos with a smartphone. With brief prior instruction, even those who are not comfortable with IT or new staff can handle site recording without problems. Tools that only certain people can operate hinder team-wide information sharing, so a system like LRTK 360 that anyone can use is a major advantage.

Q: Is centimeter-level accuracy really achievable? A: If the RTK system is functioning normally, you can expect about 2-3 cm (0.8-1.2 in) accuracy horizontally and about 3-4 cm (1.2-1.6 in) in height. Actual accuracy depends on satellite reception conditions, but LRTK 360 allows you to confirm accuracy in real time, so you can shoot only when accuracy is ensured. If RTK cannot be obtained, recording is still possible, but errors on the order of several meters (several ft) can occur, similar to normal GPS. For important situations, confirm that RTK is in a Fix state before shooting to consistently obtain high-accuracy data.

Q: Can it be used indoors or underground? A: High-accuracy positioning requires reception of satellite signals, so use is basically intended for outdoor environments with an open sky. Indoors or underground, GNSS signals do not reach, making RTK positioning difficult; however, 360° camera shooting itself is still possible in such cases. Note that position information may have large errors. With techniques such as combining coordinates measured at outdoor reference points with indoor photos, indoor recording can be adapted.

Q: How are captured data stored and shared? A: Captured data is saved on the smartphone/tablet and commonly uploaded to the cloud for project-based management. Using the LRTK cloud automatically maps photo locations and allows listing, searching, and chronological comparison of multiple photos. Cloud data can be shared via links with authorized stakeholders for viewing and downloading. Configure cloud access permissions according to your company’s security policy.

Q: You said it can be used for surveying tasks—what exactly can it do? A: LRTK systems include functions to support simple surveying. For example, using a dedicated app on an iPhone or iPad (such as LRTK Phone), you can quickly obtain dimensions or cross-sectional shapes of remote locations using photos or LiDAR scans. You can generate 3D point clouds from drone imagery or multiple smartphone photos and calculate volumes and areas. In short, parts of surveying and as-built management that previously required specialized equipment and advanced skills can be performed easily by anyone using LRTK tools, enabling integrated digital workflows and greatly improving operational efficiency.

Q: Will the benefits justify the initial costs? A: Initial investment in equipment and systems is required, but significant benefits can be expected. For example, labor and days spent on recording tasks can be reduced, and time spent preparing reports or handling issues is shortened. Reduced need for rental surveying equipment or re-surveys also cuts costs. Accumulated data facilitates future construction planning and knowledge transfer, providing substantial qualitative benefits. Considering productivity gains and risk reduction from on-site DX, the return on investment can be well justified.