Insight

Time Series Heat Maps in Risk Reports

By Brian Le

A risk report is a product we deliver to customers that highlights observed risks in a facility with the objective is to help reduce potential losses from injuries. It is a method we use to communicate the risks we discover in the video data tied to insights from our data science team and safety recommendations from our loss control team to the customer.

The risk report generation process has numerous steps starting from data collection and ingestion to data analysis and video review. We collect hours of video data, typically within a 2 week period, from strategically selected cameras that provide an general overview of the activity and risks within the facility. From there, we ingest the video data through a pipeline where we perform object tracking and event detection using computer vision models that capture forklifts, workers and safety events detected into bounding boxes and collected into our database. Using this kind of data allows our data science team to build powerful analyses, such as time series heat maps on activity and risks.

 

Time Series Heat Map of Ergonomic Activity

 

 

In the heat map above, we are observing ergonomic activity within a 2 week report period for a single customer. Each cell represents a single hour period for a given day of the week as event counts normalized by number of workers. From the chart, we can observe that Fridays from 6am to 7am contain the most ergonomic risk. During this time, workers are engaging in very frequent ergonomic activities in comparison to the rest of the periods, which is a leading indicator of ergonomic injuries such as muscle strains. To generate the heat map, we group the data by time of the day and day of the week and then plot the period counts relative to their density levels.

Time Series Heat Map of Worker Activity

 

 

The difference between this heat map and the previous one is the metric represented in each cell. Here we are observing total worker hours, which is the total duration of each worker detected in every camera. From the chart, we can observe that work tends to ramp up after the first hour, slow down before lunch, pick back up and then drop at the last hour of the day. Intuitively, this makes sense as teams usually initiate their work day with a meeting and then slow down productivity after hours of working in anticipation of clocking out for lunch or the day. We also find that Fridays are the slowest day in the week, but have the highest ergonomic risk as stated from the previous heat map. Ultimately, these charts help our team and the customer understand peak hours of activity and risk to focus their attention to when looking to reduce risk.

After a risk report is completed, our team delivers the report to the customer in a virtual meeting where we go through the report as a presentation. During this process, we ensure that the customer understands the content of the report and most importantly, the insights and recommendations we provide. In order for the customer to take advantage and reduce risk in potential losses, they should consider the recommendations and how to execute on them. This may include additional training, purchasing equipment, improving processes, etc. After their first risk report is delivered, we allow the customer time to make the changes and collect data at a later period, typically a few months later to ensure that we capture the changes. Our team then runs a second risk report with a different structure that tracks any change in the metrics highlighted in the report to gather and deliver insights on their progress.

Latest Posts

Event

October 11, 2022

Webinar: What if your Workers’ Comp Program Prevented Accidents

This webinar was hosted by Bender Insurance Services to help educate the market on how Workers’ Comp can not only serve as insurance but also prevent accidents by being bundled with a risk reduction program. Have a listen or read the transcript below. Full Transcript ‍ Jillian Bender-Cormier: Hello and welcome, everyone. My name is […]

Read more
Case Study

October 11, 2022

How to Achieve 99% Reduction in Risk Exposure In The Workplace

Computer vision can detect risks, but it is recommending changes to the workplace that helps cement the changes that are needed to impact people’s lives and the bottomline. ‍ Transcript So they actually took strides to take care of this situation. And what they did was they bought a piece of stair equipment that you […]

Read more
Insight

October 11, 2022

Ergonomics Reimagined

by Lauren Wandell ‍ When a manufacturing company has a recurrent occupational injury from a task, they have been encouraged to seek out an Ergonomist, but now there are technologies which are helping us to reimagine the effectiveness of ergonomics. ‍ An Ergonomist uses interviews, recording equipment, predictive equations and experiential expertise to evaluate a […]

Read more
Insight

October 11, 2022

Using Existing Camera Systems for Workplace Risk Reduction

Preexisting camera systems can now contribute to a radical reduction in workplace risk. Learn how in this 60 second video clip. ‍ Here’s the transcript: ‍ I think general warehousing manufacturing most have some sort of camera system. It may be for security, it may be pre-existing with a building when we rented it maybe. […]

Read more
Insight

October 11, 2022

Does Your Insurance Policy Predict Injuries Before They Happen? We Can, With Predictive Analytics.

by Kristopher Mizel ‍ Insurance premiums are most affected by the losses a company has experienced. By glancing into the past, we attempt to foresee what tomorrow will bring. But is looking in your rearview mirror the best way to get around? What if your insurance company could predict losses based off newer, more accurate […]

Read more
Annoucement

October 11, 2022

CompScience Receives Workers’ Comp Insurance Industry Validation and Closes $6M Seed Round

CompScience Receives Workers’ Comp Insurance Industry Validation and Closes $6M Seed Round Key Workers’ Comp Insurance and Distribution Partnerships include The Hartford, MidAtlantic, Bender, Heffernan, and IOA. August 25, 2022 17:10 ET | Source: CompScience SAN FRANCISCO, Aug. 25, 2022 (GLOBE NEWSWIRE) — CompScience announced closing a $6m seed round, capping successful risk reduction outcomes […]

Read more