ExacqVision Storage & Bandwidth Calculator
ExacqVision Storage Projection Chart
ExacqVision Storage & Bandwidth Reference Table
| Resolution | FPS | Estimated Bitrate (Mbps) | Storage per Day (GB) |
|---|
What is ExacqVision?
ExacqVision is a robust and scalable video management system (VMS) developed by Johnson Controls, designed for professional video surveillance applications. It provides a comprehensive solution for recording, monitoring, and managing video from thousands of IP cameras and analog cameras alike. ExacqVision NVRs (Network Video Recorders) and software are widely used in various sectors, from small businesses to large enterprises, offering features like motion detection, remote access, and integration with access control systems.
This exacqvision calculator is an essential tool for anyone planning, expanding, or optimizing an ExacqVision surveillance system. It helps to accurately predict the storage and network resources required, preventing costly oversights.
Who should use it: Security integrators, IT professionals, system administrators, and business owners who are deploying or managing ExacqVision systems. It's crucial for budgeting, hardware procurement, and ensuring compliance with video retention policies.
Common misunderstandings: Many users underestimate the impact of factors like video compression and activity levels on storage. Forgetting to account for these can lead to insufficient storage space or network bottlenecks. Another common mistake is hardcoding units without considering user needs, which this exacqvision calculator addresses by offering flexible unit adjustments.
ExacqVision Formula and Explanation
The core of any video surveillance system design, especially with a powerful VMS like ExacqVision, revolves around calculating the necessary storage capacity and network bandwidth. These calculations depend on several key variables:
The formulas used by this exacqvision calculator are approximations based on industry standards and typical compression efficiencies:
- Bitrate Per Camera (Mbps): This is the average data rate generated by a single camera.
Bitrate_Per_Camera (Mbps) = Base_Resolution_FPS_Bitrate × Compression_Factor × (Activity_Level / 100) - Total System Bandwidth (Mbps): The total network capacity needed to handle all camera streams simultaneously.
Total_Bandwidth (Mbps) = Bitrate_Per_Camera (Mbps) × Number_of_Cameras - Storage Per Camera Per Day (GB): The daily storage consumed by one camera.
Storage_Per_Camera_Per_Day (GB) = Bitrate_Per_Camera (Mbps) × 10.546875(Conversion factor from Mbps to GB/day) - Total Storage Required (GB/TB): The total disk space needed for the entire system over the specified duration.
Total_Storage (GB) = Storage_Per_Camera_Per_Day (GB) × Number_of_Cameras × Recording_Duration (Days)
Variables Table
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Number of Cameras | Total cameras in the system | Cameras (unitless) | 1 - 1000+ |
| Resolution | Video clarity (e.g., 1920x1080) | Pixels | 720p to 4K+ |
| FPS | Frames per second | fps | 1 - 30 (or 60) |
| Compression | Video codec efficiency | (unitless factor) | H.264, H.265, MJPEG |
| Activity Level | Percentage of time motion occurs | % | 5% - 100% |
| Recording Duration | How long video is stored | Days, Weeks, Months, Years | 7 days - 365+ days |
| Bitrate | Data rate of video stream | Mbps | 1 Mbps - 25+ Mbps |
| Storage | Disk space required | GB, TB | Tens of GB to Petabytes |
Practical Examples
Example 1: Small Office Surveillance
- Inputs:
- Number of Cameras: 4
- Resolution: 1080p (1920x1080)
- FPS: 15
- Compression: H.264
- Activity Level: 30%
- Recording Duration: 30 Days
- Calculated Results (using this exacqvision calculator):
- Bandwidth Per Camera: ~1.2 Mbps
- Total System Bandwidth: ~4.8 Mbps
- Storage Per Camera Per Day: ~12.7 GB
- Total Storage Required: ~152 GB
- Interpretation: A small office would likely need a 250GB or 500GB NVR to comfortably store 30 days of footage, allowing for some overhead.
Example 2: Retail Store with Extended Retention
- Inputs:
- Number of Cameras: 16
- Resolution: 5MP (2592x1944)
- FPS: 20
- Compression: H.265
- Activity Level: 60%
- Recording Duration: 90 Days
- Calculated Results (using this exacqvision calculator):
- Bandwidth Per Camera: ~3.6 Mbps
- Total System Bandwidth: ~57.6 Mbps
- Storage Per Camera Per Day: ~38.0 GB
- Total Storage Required: ~5.47 TB
- Interpretation: For a retail store requiring 90 days of retention with high-resolution cameras and H.265 compression, a significant NVR with at least 6TB of storage would be needed. This calculation highlights the efficiency of H.265 and the impact of longer retention periods. This is a critical aspect of any video surveillance storage plan.
How to Use This ExacqVision Calculator
This exacqvision calculator is designed for intuitive use, helping you quickly get accurate estimates for your security camera system design:
- Input Camera Count: Enter the total number of IP cameras you plan to deploy or currently have in your ExacqVision system.
- Select Resolution: Choose the video resolution of your cameras. Higher resolutions (e.g., 4K, 5MP) demand more storage and bandwidth.
- Set FPS (Frames Per Second): Determine the frame rate. For general surveillance, 15 FPS is common; for detailed motion analysis, 30 FPS might be preferred.
- Choose Compression: Select your video codec. H.265 (HEVC) offers superior compression efficiency over H.264, significantly reducing storage and bandwidth. MJPEG is generally for specific use cases due to its high bandwidth demand.
- Adjust Activity Level: This percentage represents how much of the time motion is detected and recorded. For 24/7 continuous recording, set it to 100%. For motion-triggered recording in a quiet area, a lower percentage (e.g., 10-20%) is appropriate.
- Define Recording Duration: Specify how many days, weeks, months, or years you need to store the footage. Use the dropdown to switch between units.
- Click "Calculate": The results will instantly appear, showing your total storage required, bandwidth per camera, and total system bandwidth.
- Interpret Results: Use the "Total Storage Required" to plan your NVR hard drive capacity. "Total System Bandwidth" helps ensure your network infrastructure can handle the video streams without bottlenecks. The included reference table and chart provide further insights.
- Copy Results: Easily copy all the calculated values and assumptions for your documentation or reporting.
Key Factors That Affect ExacqVision Storage & Bandwidth
Understanding these factors is crucial for effective security camera system design and optimizing your ExacqVision deployment:
- Resolution: Higher pixel counts (e.g., 4K vs. 1080p) mean more data per frame. This directly increases both bandwidth and storage needs.
- Frames Per Second (FPS): More frames per second result in smoother video but linearly increase data. A 30 FPS stream uses twice the data of a 15 FPS stream (all else being equal).
- Video Compression (Codec): The most impactful factor. H.265 can reduce storage and bandwidth by 30-50% compared to H.264 while maintaining similar video quality. MJPEG, an older standard, uses significantly more resources.
- Activity Level / Motion Detection: If recording is triggered by motion, the system only saves data when there's activity. A lower activity level (e.g., 20%) drastically reduces average daily storage compared to continuous (100%) recording. ExacqVision's advanced motion detection can be highly optimized here.
- Recording Duration (Retention Policy): The longer you need to store video (e.g., 90 days vs. 30 days), the more total storage capacity you will require. This is often dictated by compliance or operational needs.
- Number of Cameras: This is a linear multiplier. More cameras mean proportionally more total bandwidth and storage. A large-scale deployment with many cameras will quickly accumulate terabytes of data.
- Scene Complexity: While not a direct input, a busy, dynamic scene (like a street) generates more data than a static scene (like a hallway wall), even with the same resolution and FPS, because compression algorithms have more changes to record.
- Image Quality Settings: Beyond resolution and FPS, settings like bitrate control, I-frame interval, and noise reduction within the camera or VMS can influence the final data rate.
Frequently Asked Questions (FAQ) about ExacqVision Storage & Bandwidth
A: Our exacqvision calculator provides an excellent estimate, but real-world usage can vary due to factors like precise camera models, varying scene complexity, specific ExacqVision VMS settings (e.g., variable bitrate, I-frame intervals), and network conditions. Always build in a buffer for your storage planning.
A: It depends on your needs. For general monitoring, 10-15 FPS is often sufficient. For high-detail applications like facial recognition or license plate capture, 20-30 FPS is recommended. Higher FPS consumes more bandwidth and storage, so balance your needs with available resources.
A: H.265 (HEVC) uses more advanced compression algorithms, such as improved motion prediction and smaller block sizes, to encode video more efficiently. This allows it to achieve roughly 30-50% bitrate reduction compared to H.264 at the same perceived quality, directly translating to significant savings in storage and bandwidth for your H.265 storage needs.
A: Use the unit that makes the most sense for your retention policy. The exacqvision calculator automatically converts between days, weeks, months, and years internally, so your results will always be consistent. For example, if your policy is "3 months," select "Months" and enter "3".
A: Absolutely! By calculating the total storage required, you can determine the minimum hard drive capacity needed for your NVR. The total bandwidth estimate also helps ensure the NVR's network interface and processing power are adequate for the number and type of cameras you plan to use with your ExacqVision NVR.
A: This calculator assumes uniform settings for simplicity. If you have varied cameras, you should perform separate calculations for each group of cameras with identical settings and then sum up the total storage and bandwidth. Alternatively, use the average settings across your system for a rough estimate.
A: A typical activity level can range from 5% in very quiet areas (e.g., a seldom-used hallway) to 50-70% in high-traffic areas (e.g., a retail entrance during business hours). For continuous recording, set it to 100%. This is a crucial setting to optimize your video retention policy.
A: Sufficient bandwidth ensures that all camera streams can be transmitted over the network to the NVR without lag, dropped frames, or reduced quality. Insufficient bandwidth can lead to poor video performance, making your surveillance system ineffective. Use our CCTV bandwidth calculator for more detailed network planning.
Related Tools and Internal Resources
Explore more tools and guides to enhance your security system planning:
- NVR Storage Calculator: A general calculator for estimating NVR storage needs across various VMS platforms.
- CCTV Bandwidth Guide: A comprehensive guide to understanding and planning network bandwidth for your surveillance system.
- IP Camera Selection Guide: Learn how to choose the right IP cameras for your ExacqVision system.
- Video Retention Best Practices: Discover strategies for managing and optimizing your video data retention policies.
- Security System Cost Estimator: Get an estimate for the overall cost of deploying a security system.
- Choosing a Video Management Software (VMS): A guide to selecting the best VMS for your specific security requirements, including considerations for ExacqVision.