Occupancy Optimization Engineering



Nelson Engineering provides people counting solutions that are manufactured in the USA. We empower you to collect anonymous and continuous real-time data about your space’s occupancy. Manage occupancy levels and reimagine your workplace. We deliver right-sized and inviting safe spaces that cost less to operate and maintain

 Positive Outcomes

  • Plan and re-enter your
    workspaces safely
  • Right-size your real estate portfolios
  • Fit your workspaces to your on-site workforce
  • Right-size conference rooms and common areas
  • Plan your cleaning schedules to deliver more inviting spaces


Nelson Engineering is an authorized installation company for Density systems. We not only supply the Density sensors; we also design the system to meet your facility requirements, install the hardware, configure the software, and support the product line. We base our qualifications on decades of facility engineering and construction management experience. Our project delivery approach:

PHASE 1 | Project Planning
  • Understand Client Requirements
  • Develop Project Scope
  • Design the Hardware and
    Software Solution
  • Plan Construction and Permitting

PHASE 2 | Installation & Activation

  • Install Sensors
  • Run Power over Ethernet (PoE)
  • Configure Internet Access
  • Activate and Turnover System
  • Configure User Settings, Alerts

PHASE 3 | Analysis & Support

  • Evaluate Occupancy Data, Trends
  • Recommend Facility Usage Changes
  • Identify Facility Reconfiguration and System Expansion Opportunities
  • Warranty Service

A big part of the work we do is facility condition assessments that help clients understand their occupied spaces. Nelson Engineering has assessed over 160 million square feet of buildings for commercial and government clients. As such, we are intimately aware of the need for occupancy optimization.

We see it every day.

The COVID-19 pandemic is changing the way we work. We’ve surveyed our staff and spoken with other firms. Employee surveys show upwards of 70% of staff desire working from home two to three days a week post-pandemic. Occupancy optimization data can help you engage this trend by answering these questions:

  1. What does the office of the future look like based on how people use spaces?
  2. What spaces are underutilized and need to be repurposed or reconfigured?
  3. When is it time to consolidate my real estate portfolio?
  4. Where can I set up hot desks and activate a hoteling plan or reservation system?
  5. Where can I lower my OPEX using real-time occupancy data?

Get the data you need and make fact-based decisions.

Mark Bruneman

Occupancy Optimization Program Manager

How We Use Density

Below is the Density Safe display at the entrance to our office.

The word “Go” on the below screen tells employees and visitors it is safe to enter the building. We base your safe occupancy levels on those you pre-determine. The display turns red and displays the word “Stop” when occupancy levels approach your limits (examples: your social distance-based spacing criteria or maximum occupancy levels set by the fire marshal). Employees can view this information remotely and decide whether to travel to the office based on real-time occupancy levels. Density sends managers SMS/text alert messages based on occupancy data.

The Safe display can also effectively manage occupancy in common areas. Universities like Notre Dame, Harvard, and Stanford use it to manage occupancy in common areas like cafeterias. We use it to make sure conference rooms don’t exceed occupancy limits. Monitoring traffic through restroom doors can help facility managers identify the ideal times and frequencies to schedule cleanings.

Safe Screen Display for Occupancy Optimization

About Density

Density use anonymous depth data to help you see and understand your space at scale and in real-time. The sensors have no cameras and record no personally identifiable information (PII). Density manufactures the sensors in the United States, unlike their competitors.

Density features two types of sensors:

Doorway Sensor Sensor v1

Entry Sensor

Density’s entry sensor installs at the threshold of any opening. The sensor anonymously counts entries and exits with 98% accuracy.

Open Area Sensor v1

Open Area Sensor

Understand how people use open spaces with Density’s newest sensor. Open area sensors provide twice the range and 4x the coverage of camera-based alternatives.


Density Sensor At Doorway - Footfall

People Counting (footfall)

Each over-the-door entry device uses infrared depth sensors to count humans entering and exiting doorways. Each sensor generates tens of thousands of accurate depth measurements.

Open safe with Density sensors and display


Density data helps you develop optimal post-pandemic facility occupancy plans. Occupancy status displays empower employees and visitors to make safer decisions about their day.

Smart Alerts for Janitorial Service

SAFE and Smart Alerts

Proactively engage facility occupants with opt-in push notifications and alerts to their mobile devices. Notify facility managers when occupancy approaches maximum levels. Ensure optimal cleanliness levels with smart alerts to janitorial staff.

Cost Avoidance Example

Cost Avoidance

Use data to drive space allocation decisions. Avoid retaining square footage you don’t need and explore opportunities to reduce OPEX costs. Invest in asset types you use most often. Increase facility utility by repurposing infrequently occupied assets, such as large conference rooms.

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