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Hi, I’m looking for a developer/team who can help us build a **real-time indoor navigation system**. The main requirement is: * Convert existing **CAD/PDF/floor plans into a structured 2D/3D indoor map** * Support **multiple floors** * Implement **BLE beacon-based indoor positioning** * Use **BLE + accelerometer + gyroscope + compass** for accurate positioning * Show the user’s **real-time location and direction** on the map * Provide **turn-by-turn indoor navigation** * Calculate the best route between two points * Support **stairs, elevators, escalators, gates, corridors, rooms, etc.** * Provide **dynamic rerouting** if the user moves away from the planned route * Develop the navigation engine/API/SDK so it can later be integrated into an **Android application** This is intended for a large indoor environment so accuracy, scalability, multi-floor navigation, and real-time positioning are important. Please let me know: 1. Have you worked on similar indoor navigation projects? 2. What technology/SDK would you recommend? 3. How would you implement BLE positioning? 4. What accuracy can you realistically achieve? 5. What information/data would you need from our side? 6. Estimated development timeline and cost? I can share the detailed technical requirements and floor plans once we confirm the approach.
Project ID: 40667496
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51 freelancers are bidding on average ₹187,200 INR for this job

Hello,I have experience building location-based and real-time mobile solutions involving maps, GPS/tracking workflows, navigation and device integrations. Your indoor navigation project is a strong fit for our development capabilities. I can develop a scalable navigation engine covering: • CAD/PDF floor plans converted into structured 2D/3D maps • Multi-floor indoor mapping • BLE beacon-based positioning • BLE + accelerometer + gyroscope + compass sensor fusion • Real-time user location and direction • Turn-by-turn indoor navigation • Best-route/path calculation • Stairs, elevators, escalators, gates & corridors • Dynamic rerouting when users leave the route • POI, room and restricted-area support • Navigation API/SDK for future Android integration • Tools for beacon/map configuration and calibration For positioning, I recommend a BLE + sensor-fusion architecture because it can provide more stable indoor positioning than relying on a single sensor. Final accuracy will depend on beacon density, building structure, interference and calibration, so I would validate it with a real-site pilot before committing to an accuracy figure. I have handled similar real-time tracking and location-based applications and can share relevant portfolio examples. Once you provide the floor plans, beacon details and technical requirements, I can propose the architecture, technology stack, milestones, timeline and cost. Best regards,
₹150,000 INR in 15 days
7.7
7.7

With my 17+ years of comprehensive experience, particularly in **ASP.NET C# Development** and **Android Development**, I am confident that my team and I possess the necessary skills to successfully execute this project. We are adept at turning CAD/PDF/floor plans into structured 2D/3D indoor maps and have worked with technologies that share similar features to what you require, including BLE positioning, accelerometer, gyroscope, compass, etc. This means we can realistically achieve a high level of accuracy in real-time location tracking and directions. Given the scope and complexity of your project, it calls for disciplined project management and bug-free code which is synonymous with our highly professional approach. Moreover, my team's strengths also lie in integrating the developed applications into Android systems which will be needed for you as well. Finally, my commitment to providing absolute client satisfaction combined with a pricing model that offers competitive rates makes us an ideal partner for your project. Let's collaborate to turn this vision of a real-time indoor navigation system into reality. I am 24x7 available for any discussion/questions you might have regarding the project. Looking forward to hearing from you soon!
₹200,000 INR in 7 days
6.3
6.3

Hi, We can develop your real-time indoor navigation platform with multi-floor 2D/3D mapping, BLE positioning, IMU sensor fusion, turn-by-turn navigation, route optimization, and dynamic rerouting. Our proposed approach includes: * Converting CAD/PDF floor plans into structured navigable maps * BLE beacon positioning combined with accelerometer, gyroscope and compass * Multi-floor routing with stairs, elevators, escalators, gates, corridors and rooms * Real-time location and heading visualization * A* / graph-based route calculation with dynamic rerouting * Backend navigation API/SDK designed for future Android integration * Scalable architecture suitable for large indoor environments For BLE positioning, we would evaluate RSSI-based trilateration/fingerprinting and combine it with IMU-based PDR using sensor fusion to improve stability and accuracy. We can review your floor plans, beacon layout and technical requirements and then provide a realistic accuracy estimate, development timeline and fixed/phase-wise cost. We have experience building location-based and real-time mobile/backend systems and can provide a complete development team for this project. Please share the floor plans and detailed requirements so we can propose the best architecture and implementation plan. Regards, Anju Logical Soft Tech Pvt. Ltd.
₹300,000 INR in 80 days
6.6
6.6

Your BLE beacon deployment strategy will determine whether you achieve 2-meter accuracy or 10-meter drift. Without proper trilateration algorithms and Kalman filtering on sensor fusion, users will see their position jump erratically between floors. Quick questions - what's your beacon density per square meter, and are you planning static calibration or crowd-sourced fingerprinting for signal mapping? And what's your tolerance for positioning lag during handoff between beacon zones? Here's the architectural approach: - BLE TRILATERATION + SENSOR FUSION: Implement particle filter combining RSSI signals with IMU data to smooth position updates and prevent floor-hopping errors during multi-story transitions. - CAD-TO-GRAPH CONVERSION: Parse DWG/PDF floor plans into a navigable graph structure with weighted edges for stairs/elevators, then expose routing via REST API for Android SDK integration. - DYNAMIC PATHFINDING ENGINE: Build A* algorithm with real-time obstacle detection and rerouting logic that recalculates within 200ms when users deviate from planned routes. I've built similar beacon-based systems for 2 airport terminals and a hospital campus that handle 50K+ daily users across 8-floor buildings. Let's schedule a technical call to review your floor plans and finalize the beacon placement strategy before development starts.
₹180,000 INR in 30 days
6.6
6.6

As an experienced 3D designer and developer, I can confidently say that I am well-equipped to take on this exciting indoor navigation system project. My familiarity with CAD/PDF floor plans, 2D/3D mapping, and BLE technology make me a natural fit for your needs. I've previously utilized BLE positioning in similar projects and can assure you an accurate implementation. In terms of accuracy, with the utilization of BLE beacons alongside accelerometer, gyroscope, and compass, we can reasonably achieve high precision and provide real-time location updates. A comprehensive understanding of stairs, elevators, escalators, gates, corridors, rooms, among others is also something I bring to the table.
₹150,005 INR in 1 day
6.2
6.2

Hi! This is an excellent, detailed brief. Building a real-time indoor navigation SDK using BLE combined with sensor fusion (accelerometer, gyroscope) is a complex challenge I'm well-equipped for. To answer your questions: 1. **Similar Experience:** I've developed a proof-of-concept for a large logistics warehouse that used BLE trilateration and sensor fusion to track assets in real-time across a multi-level environment. 2. **Recommended Tech:** I'd build the navigation engine and Android SDK using native Kotlin for optimal performance and direct sensor access. 3. **BLE Implementation:** We'd use a grid of BLE beacons and implement a trilateration or fingerprinting model. This is fused with the phone's IMU data (accelerometer/gyro) for dead reckoning, which smooths the location and provides direction between beacon signals. 4. **Accuracy:** You can realistically expect 1-3 meter accuracy. This is highly dependent on beacon density and building materials. 5. **Information Needed:** To provide an estimate, I would need a few sample floor plans (CAD/PDF) and the total area size. 6. **Timeline/Cost:** I can provide a detailed breakdown once I review the plans. I'm ready to discuss the A* pathfinding approach for your dynamic rerouting needs. Philip O.
₹150,000 INR in 7 days
5.2
5.2

This project on developing a real-time indoor navigation system is exactly the kind of challenge I thrive on. I see that you need to convert CAD/PDF floor plans into those structured 2D/3D maps while supporting multiple floors and ensuring accurate positioning using BLE, accelerometers, gyroscopes, and compasses. And the integration of BLE for indoor positioning, especially in a large environment with multiple floors, is tricky but essential for accuracy and scalability. I plan to leverage BLE beacons alongside the sensor data to pinpoint user locations effectively, and provide dynamic rerouting for turn-by-turn navigation. This includes handling complex features like stairs, elevators, and various indoor structures to ensure users have a seamless experience. From what you've described, you need a comprehensive navigation engine and API/SDK that can be integrated into an Android application. I'll go ahead and build the indoor maps, implement the navigation engine, and ensure real-time location tracking with dynamic rerouting capabilities. I’m bidding 157499 INR for this project, and I’m ready to get started on this right away because I think it will be great to work together. I look forward to collaborating with you to bring this vision to life. Rajavel Indoor Navigation Systems | BLE Integration | Android Development
₹157,499 INR in 10 days
5.3
5.3

This project should be approached as two connected systems: a positioning engine and a multi-floor routing engine. I would avoid relying on raw BLE RSSI alone, because indoor reflections and obstacles make it too unstable for reliable navigation. I would first convert the CAD/PDF floor plans into a structured indoor graph containing rooms, corridors, doors, stairs, elevators, escalators, gates, floor transitions, and restricted areas. Routing can then use A*/Dijkstra with accessibility and floor-change rules. For positioning, I would combine BLE beacon measurements with accelerometer, gyroscope, and compass data using sensor fusion and filtering. BLE provides location anchors while inertial sensors estimate movement and heading between beacon updates. The system would also detect route deviation and trigger dynamic rerouting. I would expose the navigation/positioning logic through a clean API/SDK so it can later be integrated into your Android application without coupling the core engine to the UI. I would not promise a fixed accuracy before reviewing beacon density, floor geometry, interference, and calibration conditions; I would establish the target through an on-site/site-survey test plan. Can you share one representative floor plan and the approximate building size/number of floors?
₹150,000 INR in 10 days
4.2
4.2

Hello, I am Karthik, a seasoned developer with over 15 years of experience in building advanced software solutions. I am excited about the opportunity to develop your real-time indoor navigation system. 1. Experience: I have successfully executed similar projects, converting CAD and PDF floor plans into interactive maps and integrating BLE beacon-based positioning for accurate indoor navigation. 2. Technology: I recommend using a combination of BLE for positioning and a robust navigation SDK that supports multi-floor environments. My expertise in Java/Kotlin for Android will ensure seamless integration. 3. Implementation: BLE positioning will be enhanced using accelerometers, gyroscopes, and compasses for improved accuracy, particularly in large spaces. 4. Accuracy: I can achieve an accuracy level of around 2-5 meters, depending on the environment and beacon placement. 5. Requirements: I will need access to existing floor plans and any specific navigation preferences you may have. 6. Timeline & Cost: I estimate a timeline of 8-12 weeks, with a budget aligned to your expectations, starting at ₹150,000. I look forward to discussing this project further. Best, Karthik
₹200,000 INR in 7 days
3.8
3.8

Having been in the industry for over 7 years, we understand the nuances of the digital world and can bring those skills to bear on your indoor navigation project. Our expertise lies in **mobile app development** for Android, which aligns well with your requirement to integrate an **indoor navigation system into an Android application**. Additionally, we possess deep experience in **building real-time location services** that could give your project the much-needed edge it deserves for **accurate positioning and route calculations**. We are well-versed with handling complex projects and have tackled various navigation systems before. To ensure optimal performance, we would recommend utilizing a combination of **BLE beacons with accelerometer, gyroscope and compass** for positioning—proven method to deliver **real-time navigational support** in large indoor spaces like yours. As far as accuracy goes, while it depends on numerous factors such as hardware compatibility, signal strength, etc., we aim to deliver no less than a few meters accuracy - sufficient for pinpointing users' directions indoors.
₹200,000 INR in 7 days
2.5
2.5

Hello, I’m bharghav, a developer with 10 years of experience in matching job skills, particularly in Java, Android, and C# programming. I'll apply my expertise specifically to your project needs. I understand you're looking to create a real-time indoor navigation system that can convert existing floor plans into structured 2D/3D maps, support multiple floors, and implement BLE beacon-based positioning. I propose developing the navigation engine alongside the necessary APIs, ensuring accurate, turn-by-turn navigation through complex indoor spaces. Let's start a chat to discuss your requirements in detail and explore the best possible solutions. Best regards, bhargav922002
₹175,000 INR in 3 days
1.4
1.4

Hi, Your indoor navigation project requires more than a map viewer—the positioning, sensor fusion, routing and multi-floor logic all need to work together reliably. I’d approach it as a modular navigation engine that can later be exposed through an Android SDK/API. For the map layer, I’d convert your CAD/PDF/floor plans into structured 2D/3D floor data with rooms, corridors, entrances, stairs, elevators, escalators and other navigable nodes. A graph-based routing engine can then calculate optimal paths and support multi-floor transitions and dynamic rerouting. For positioning, I’d combine BLE beacon RSSI data with accelerometer, gyroscope and compass readings using sensor-fusion/filtering techniques. The system can continuously estimate position and heading, then snap the result to the indoor navigation graph for more stable movement and turn-by-turn guidance. I’d first review your floor plans, target device requirements, beacon specifications and expected environment, then propose the most suitable SDK/technology and implementation architecture. I’d be happy to review the technical requirements and floor plans and define a practical MVP for the positioning and routing engine. Best Regards, Aman
₹175,000 INR in 7 days
0.0
0.0

Hello, I can help develop the indoor navigation system with a scalable navigation engine that can later be integrated into an Android application. The system can convert your existing CAD/PDF floor plans into structured 2D/3D maps, support multiple floors, and handle rooms, corridors, stairs, elevators, escalators, and access points. For positioning, I would combine **BLE beacon signals with accelerometer, gyroscope, and compass data** using sensor fusion to provide more stable indoor positioning. The navigation engine can then calculate the best route, provide turn-by-turn guidance, and dynamically reroute when the user moves away from the planned path. The backend/API will be designed modularly so the positioning, mapping, routing, and navigation components can be integrated into Android or other platforms later. Before final implementation, I would review your floor plans, building size, beacon specifications/locations, required accuracy, and expected number of users to recommend the most suitable architecture and SDK. I am comfortable discussing the technical approach and development milestones based on your detailed requirements. Best regards, Sugam
₹200,000 INR in 28 days
0.0
0.0

With my background in both web and mobile application development, as well as my proficiency in the MEAN and MERN stack, I am confident that I am well equipped to take on your real-time indoor navigation system project. While I have not worked on a project that is identical to what you describe, I have successfully developed complex applications from scratch that demand accuracy, scalability, and multi-floor navigation- all qualities essential for your project. In terms of technology recommendations, I suggest leveraging the use of BLE beacons for indoor positioning. Additionally, integrating BLE with accelerometer, gyroscope, and compass will further ensure accurate positioning. For efficient implementation, I utilize RESTful API which would allow seamless integration with your Android application. Estimating precision without detailed floor plans might not accurately reflect what's possible. However, given time to study the files provided and integrate BLE positioning efficiently, it is plausible to achieve high accuracy. To help facilitate this process without delay, please do provide me with the floor plans and technical details at your earliest convenience. I'm confident we can work together to meet or exceed your expectation.
₹200,000 INR in 7 days
0.0
0.0

Converting floor plans into a navigable graph is the underestimated step. Most bidders will quote BLE first, but if the CAD-to-graph conversion is sloppy (missing doorways, broken stair connections, no elevator transitions), every downstream layer runs on bad data. That needs design attention before any beacon gets placed. On scope fit: I've shipped production Android apps with sensor APIs and built SDKs other services integrate against. I haven't shipped a turn-by-turn indoor nav system. BLE trilateration and particle filter tuning is a 2-3 month specialization, and I'd rather flag that now than paper over it. Realistic BLE accuracy in a large indoor environment is 2-4 meters under good conditions, not the 1-2m some teams promise. That shapes the map design. Corridors need width to absorb error, and UX needs visual confirmation at decision points. Target is a particle filter fusing BLE RSSI with PDR from the IMU, since pure BLE drifts badly with body blocking and multi-floor interference. I'd structure this as a modular Android SDK plus a navigation engine over WebSocket/REST. Keeps the BLE/sensor layer swappable for UWB or WiFi fusion later. Done something close in a different domain. Production SDK architecture and Android sensor work carry over. A 30-minute call to walk through one floor plan and lock the BLE accuracy target would let me come back with a phase breakdown within a day. Regards - Mohammad Juned
₹159,400 INR in 15 days
0.0
0.0

Hi, Thanks for sharing your project. Your requirements align well with our experience in delivering web, mobile app, CRM, and custom software solutions, and we’d be happy to help you build a reliable solution tailored to your needs. Before finalizing the scope, timeline, and budget, we’d like to understand a few key details about your requirements, current setup, and expected outcomes. This will help us suggest the right technical approach and avoid unnecessary development costs. Let’s discuss the project through Freelancer chat. We can also share relevant work samples, explain our proposed approach, and provide you with a clear execution plan, milestones, timeline, and pricing once we understand the complete requirements. We’re available to get started immediately and look forward to discussing your project. Best regards, Royal IT Services
₹150,000 INR in 7 days
0.0
0.0

Hello, I can build your real-time indoor navigation system with multi-floor support, BLE beacon positioning, sensor-based tracking, turn-by-turn navigation, and a scalable API/SDK ready for Android integration. With 10+ years of experience in mobile app development, maps, real-time tracking, BLE integrations, APIs, and location-based applications, I can handle the complete solution from floor map conversion to navigation engine development. Let’s connect to review your floor plans and technical requirements and finalize the best development approach. Thank you Regards, Vandini
₹180,000 INR in 35 days
0.0
0.0

With our experience in Android development and passion for transforming concepts into functional realities, Abxn Infotech Pvt Ltd is the perfect partner for your real-time indoor navigation system project. We have previously created and integrated complex navigation systems that involve detailed map conversions like the one you require. Our expertise lies in utilizing various technologies like BLE, accelerometer, gyroscope, and compass skillfully to ensure accurate positioning and smooth turn-by-turn navigation, even on multiple floors. To achieve optimum accuracy for your large indoor environment, we’ll meticulously incorporate BLE beacon-based indoor positioning, as well as make use of strong algorithms for dynamic rerouting purposes. To empower your project with valuable insights, we dive deep into data science and machine learning in order to maximize the potential of your datasets. As your potential partner, we're not only committed to timely delivery but also strive for long-term partnerships with all our clients. We can build a solid navigation engine/API/SDK for seamless integration within your Android application. Rest assured, by choosing us you're choosing a team that's dedicated to taking your vision forward with quality results and innovative solutions.
₹150,000 INR in 7 days
0.0
0.0

BLE signals can get distorted by metal walls, which often throws off floor‑level detection. I'd start by calibrating beacon RSSI maps against a few reference points on each floor to correct those offsets. Then I'd parse the CAD PDFs into a layered 2D model, adding 3D height data so the navigation engine can differentiate stairs from elevators. A frequent mistake is relying on raw BLE RSSI alone, which creates jittery paths when users turn corners. I’ll fuse the beacon data with the phone’s accelerometer, gyroscope and compass using a Kalman filter to keep the displayed location smooth. Ready to start immediately and hook the engine into your Android app via a lightweight Java SDK.
₹200,000 INR in 7 days
0.0
0.0

Hi, I’d be interested in building your real-time indoor navigation system and can approach it as a scalable navigation engine/API that can later integrate cleanly with Android. I’d recommend a structured indoor-map model generated from CAD/PDF floor plans, with a navigable graph containing rooms, corridors, doors, stairs, elevators, and escalators. For positioning, I’d combine BLE beacon signals with IMU data from the accelerometer/gyroscope and compass, using sensor fusion to improve stability and reduce drift. The navigation engine can support multi-floor routing, turn-by-turn guidance, route optimization, and dynamic rerouting when the user deviates. Realistic accuracy depends heavily on beacon density, placement, building layout, interference, and calibration; with a properly surveyed deployment, room-level/low-meter accuracy can be targeted, but I’d validate this through a pilot rather than promise a fixed figure. I’d be happy to review your floor plans, beacon specifications, target environment, and expected scale to recommend the best SDK/architecture and provide a milestone-based timeline and cost.
₹150,000 INR in 12 days
0.0
0.0

Noida, India
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