On construction sites, accurately recording and managing construction conditions is the key to project success. However, conventional photo records have 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‑precision positioning technology, allowing anyone to easily and completely record the entire surroundings of a site. This article explains the features of LRTK 360 construction records and how to use them on site, and introduces key points for fail‑proof record management.

Table of Contents

• What is LRTK 360 construction recording

• Why 360° recording is "fail‑proof"

• Benefits of using LRTK 360 on site

• Practical procedure for LRTK 360 construction recording

• Keys to fail‑proof operation

• 360° record management anyone can do

• Case studies: how LRTK 360 changes the site

• Conclusion

• FAQ

What is LRTK 360 construction recording

LRTK 360 construction recording is a site recording system that integrates Real‑Time Kinematic (RTK) high‑precision GNSS positioning with 360° camera imaging. A 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 panoramic images of the surroundings and the precise coordinates (latitude, longitude, height) of the shooting location. The captured data is saved to a smartphone or tablet app and, when uploaded to the cloud, is automatically organized and displayed on a map. By completing photo and location information recording in one action, LRTK 360 dramatically improves the efficiency and accuracy of site records.

Why 360° recording is "fail‑proof"

360° camera‑based record management is said to be "fail‑proof" for the following reasons.

• Prevention of oversights: A single 360° photo captures the entire surroundings, so there is no worry that the shooter will forget to photograph a particular direction. Because the site conditions can be recorded without omission, you can avoid later issues like “there’s no photo from that angle.”

• High‑precision location tags: LRTK 360 enables centimeter‑level positioning using RTK‑GNSS. Consumer smartphone GPS can shift by about 5–10 m, but RTK can reduce errors to around 3 cm. Since shooting position coordinates are automatically tagged to the photo data, you won’t have recording mistakes like “I don’t know where this was taken.” Even beginners can have peace of mind knowing they won’t fail to record positions.

• Real‑time confirmation: The app allows real‑time confirmation of positioning accuracy (such as RTK Fix status) during shooting. Because you just take the shot when accuracy is ensured, even non‑experts can always leave high‑precision records. If radio conditions are poor, positioning is still possible outside communication coverage thanks to Michibiki satellite augmentation signals (CLAS), allowing stable recording even in mountainous areas.

• Automated data organization: Uploading to the cloud automatically organizes photos on a map and enables chronological management, eliminating the need to manually name files or paste them into ledgers. Human organization errors disappear, preventing record omissions.

As described above, combining 360° recording with high‑precision positioning in LRTK 360 can greatly reduce “failures” such as missed records and recording errors.

Benefits of using LRTK 360 on site

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

• Complete preservation of site conditions: Even on large construction sites, 360° images and accurate location information are kept for each shooting point, enabling comprehensive preservation of the entire site condition. For example, if you periodically take 360° photos at the same points from before construction through completion, you can review progress chronologically and clearly identify changes or problem areas.

• Easier progress management and reporting: Photos recorded with LRTK 360 can be viewed as a list on a cloud map with pins marking shooting locations. Progress managers can grasp the entire site while overviewing all shooting points on the map. Because photos can be lined up chronologically for comparison, you can intuitively show before‑and‑after states, making photo‑based reporting materials easier to prepare and more persuasive.

• Smoother communication: 360° on‑site photos are powerful for sharing information with stakeholders. Cloud‑hosted photo data can be shared via links with project parties, allowing remote offices to virtually experience the site. This promotes shared understanding between site supervisors, clients, and subcontractors, speeding up meetings and instructions.

• Enhanced quality and safety management: Because recorded photos include precise positioning and timestamps, they are highly reliable as evidence for quality and safety management. If issues arise later, you can accurately trace when, where, and what the condition was, aiding root‑cause analysis and countermeasure planning. It also helps prevent construction defects in advance.

• Integration with survey data: Photos obtained by LRTK 360 are unified in a global coordinate system, making them easy to combine with other survey results. The cloud can overlay 360° photos with point cloud data (3D scan data), enabling measurement of distances and areas that photos alone cannot provide. Centralized management of photos and survey data dramatically improves efficiency in drawing creation and quantity calculation.

Practical procedure for LRTK 360 construction recording

Here is an overview of the typical workflow when using LRTK 360 on site. It’s a simple process anyone can follow to realize DX (digital transformation) of site records.

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

• Plan shooting points: Preplan which points on the site to record. For progress management, choose representative points for each work section; for infrastructure inspection, list inspection points for each facility. Decide on clear markers or survey points so you can shoot from the same location each time to make comparisons easier.

• 360° shooting: On site, first confirm on the app screen that an RTK “Fix” (high‑precision positioning) is obtained. When accuracy is ensured, press the shutter button to take a 360° photo. One shot captures the entire surroundings, so there is no need to take photos in multiple directions. If necessary, take additional close‑up shots of critical areas to record details.

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

• Check and share records: Once photos are organized on the cloud with maps, view images for each point on a PC or tablet to confirm contents. Check for any missed shots and take additional photos if needed. If everything is fine, send shared links to stakeholders so office personnel can also access the information. This enables near real‑time sharing between site and office and removes the need for ledger transcription.

Keys to fail‑proof operation

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

• Ensure acquisition of RTK Fix: To obtain high‑precision location records, it is essential to shoot after acquiring an RTK Fix. Confirm the app shows “Fix” or high‑precision mode, and wait until accuracy stabilizes before shooting. Do not compromise here to avoid errors in important records.

• Reproducibility of shooting position: For fixed‑point observations, shooting from the same position and height each time improves the accuracy of photo comparisons. Use tripods or poles, or mark floors and walls to improve reproducibility. Small measures can prevent failures caused by misalignment that makes comparisons impossible.

• Charge and inspect equipment: Before shooting on site, check battery levels and antenna connections to avoid battery depletion or malfunctions during work. If you plan long continuous operation, prepare spare batteries. Also, get into the habit of cleaning lenses before shooting to prevent image quality degradation.

• Data backup: Although the cloud stores uploaded data securely, consider exporting important data and keeping a backup internally as a precaution. If a cloud service problem occurs, you’ll have peace of mind knowing your data is safe.

• Training and dissemination of operations: Although the tool is simple to use, it’s beneficial to provide basic operation training so all site staff can handle it smoothly. Share app usage and device handling procedures so someone else can record when the primary person is absent, further reducing the risk of missed records.

360° record management anyone can do

The true value of LRTK 360 construction recording is that its ease of use allows anyone to become a site recorder. Traditionally, photo shooting and positioning were often left to specialists. But with LRTK 360, operations are as simple as taking a photo with a smartphone, and even without special surveying skills you can leave high‑precision records.

For example, a less experienced junior site supervisor can obtain data with veteran‑level accuracy simply by powering on the LRTK 360 device and following the app’s shooting instructions. This is because the system automatically performs advanced processes like RTK positioning and cloud linkage in the background.

Likewise, older technicians can complete records by pressing the shutter like with a conventional digital camera, so those uncomfortable with IT need not worry. By enabling everyone on site to participate in information recording, recording becomes a team activity rather than the job of a specific person, resulting in reliable construction records without omissions or mistakes.

Case studies: how LRTK 360 changes the site

What kind of changes occur on site after introducing LRTK 360 construction records? Let’s look at several case examples to see the effects.

• Progress recording on large‑scale projects: On a civil engineering site with a wide area, LRTK 360 was used to comprehensively grasp progress in each work section. From before construction to completion, weekly fixed‑point 360° shooting was conducted at key locations. Because photos for each point could be compared chronologically on the cloud, even slight changes were captured and shared with all stakeholders. As a result, site meetings used photos to report progress concretely, reducing rework caused by misunderstandings.

• Bridge inspections: LRTK 360 proved powerful for inspecting aging bridges. Cracks in bridge piers were recorded in 360° photos with high‑precision location tags from RTK. This made it possible to later pinpoint exactly which bridge and which component had which damage. Inspection staff and repair planners could share photos on the cloud and assess deterioration without visiting the site. Consequently, lead times from inspection reporting to repair planning were shortened and maintenance efficiency improved.

• Before‑and‑after verification of earthworks: On sites where terrain changes significantly, comparing pre‑ and post‑construction conditions is important. With LRTK 360, you can acquire 360° photos at the same coordinates before and after construction, enabling accurate overlay analysis of before and after. Changes in embankment volumes or surrounding landscape can be seen at a glance, aiding environmental impact assessment documentation. Previously, slight shifts in shooting position made accurate comparison difficult, but high‑precision alignment now enables quantitative verification.

In these ways, LRTK 360 construction records are applied across various site scenarios, contributing to improved operational efficiency and record accuracy. Accumulated photo and position data will become a valuable asset for future construction planning and maintenance.

Conclusion

This article introduced techniques for utilizing LRTK 360 for construction records, including points for fail‑proof 360° record management and concrete procedures. By combining 360° photos with RTK positioning, LRTK 360 enables anyone to easily perform high‑precision construction records and is a powerful tool for site DX. It prevents failures such as missed records and location errors while improving information sharing and efficiency, and is expected to deliver benefits across a wide range of roles from construction managers and site supervisors to surveying personnel.

Additionally, note that LRTK can be used not only for photo records but also for simple surveying. With dedicated smartphone apps and cloud features, you can measure distances and areas and acquire 3D point cloud data on site without complex equipment. In other words, LRTK integrates photo recording and surveying tasks into an accessible format for anyone, dramatically improving onsite productivity. If you are interested in streamlining surveying tasks along with construction record efficiency, be sure to check LRTK solutions.

FAQ

Q: What do I need to start LRTK 360 construction recording? A: Basically, you need the LRTK 360 integrated camera device and a smartphone/tablet to operate it (with the dedicated app installed). A network connection (mobile data or Wi‑Fi) on site is desirable to use cloud services, but recording itself is possible offline using satellite augmentation signals, so you can upload to the cloud later from the office.

Q: Can site staff who are not tech‑savvy operate it? A: Yes. LRTK 360 is designed for ease of use and operates with almost the same steps as taking a photo with a smartphone. With a brief orientation, even staff who are uncomfortable with IT or new employees can handle site recording without issue. Tools that only a specific person can operate hinder team information sharing, so having a system like LRTK 360 that anyone can use is a major advantage.

Q: Can it really achieve centimeter‑level accuracy? A: If the RTK system functions normally, you can expect about 2–3 cm horizontal accuracy and 3–4 cm vertical accuracy. Actual accuracy depends on satellite signal reception conditions, but LRTK 360 allows you to confirm accuracy in real time and shoot only when sufficient accuracy is assured. If RTK is unavailable, recording is still possible but will have meter‑level errors similar to regular GPS. For critical situations, ensure RTK is in a Fix state before shooting to consistently obtain high‑accuracy data.

Q: Can it be used indoors or underground? A: High‑precision positioning requires reception of satellite signals, so use is basically intended for outdoor, open‑sky environments. Indoors or underground, GNSS signals are not available so RTK positioning is difficult; however, 360° camera shooting itself still works in such locations. Note that recorded location information may have large errors. By combining coordinates measured at outdoor reference points with photos, indoor recording can be adapted with some ingenuity.

Q: How are captured data stored and shared? A: Captured data is saved on your smartphone or tablet and typically uploaded to the cloud for project‑based management. An LRTK cloud service will automatically map photos to locations and allow you to list, search, and compare multiple photos chronologically. Cloud data can be shared via links with authorized stakeholders for viewing and downloading. Configure cloud access permissions according to your company’s security policies.

Q: You mentioned surveying applications—what specifically can it do? A: The LRTK system includes features supporting simple surveying. For example, using a dedicated app on 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 multiple drone or smartphone images and calculate volumes or areas. In short, parts of surveying and quantity control that previously required specialized equipment and skills can be performed easily with LRTK tools, enabling integrated digital workflows for recording and measurement and greatly improving efficiency.

Q: Will the benefits justify the introduction cost? A: Initial investment in equipment and systems is required, but you can expect benefits that outweigh the cost. For example, labor and days spent on recording tasks can be reduced, and time spent preparing reports or handling trouble responses can be shortened. Reduced rental or repeat surveying will also lower costs. Accumulated data also facilitates future project planning and knowledge transfer, yielding significant qualitative benefits. Considering productivity gains and risk reduction from site DX, the returns on investment are likely to be worthwhile.