People Counting with mmWave Sensors: Application Benefits


[MUSIC PLAYING] Today we’ll be talking
about millimeter wave sensors from Texas Instruments
and their use in applications to locate, track,
and count people. Millimeter wave sensors provide
a number of unique benefits to applications in building
and factory automation, and we’ll take a look
at specific examples in environments that
highlight those benefits and use the people
counting and tracking reference design, which can
be found at the link below. Let’s start with
false detection. Consider an automatic door. How many times have
you just walked past the door at a convenience
store or warehouse, only to have it open? This wastes energy by
running the motor of a door and letting the air-conditioned
environment in or out. Because millimeter wave can
determine both the location and direction of
travel of a person, it can be used to infer the
direction a person is intending to go and reduce false
detection by helping automation systems to anticipate
the behavior of people. Our next example demonstrates
that millimeter wave sensors can determine with high accuracy
the position of an object. This can be used to benefit,
for example, a retail tracking application in a
convenience store or shop. Millimeter waves high
accuracy location can be used to track the
location and activity of customers in a coffee shop. We can use the accurate
location to determine where people are waiting
and how many people are in a particular area. This information can be
used to optimize and improve the customer
experience by providing data that enables retailers
to focus efforts on where they can increase efficiency. Our next example demonstrates
that millimeter wave sensors can determine position
and velocity, even in the presence of
challenging environments. As an example, let’s take this
factory automation use case where we want to use
the position of people to determine when to shut
off dangerous machinery or limit the movement
of factory robots. Other sensors, such as cameras
and other optical sensors, are sensitive to
environmental conditions and their performance
can be affected by changes in ambient
lighting, or dust, or smoke that might be present
in a factory or warehouse environment. By contrast, millimeter wave
sensors can continue to sense and provide high accuracy
data in these challenging environments. With automation
systems increasingly moving towards high levels of
connectivity and intelligence, implementing sensors in
public and private spaces will bring sensitivity to
how personal identity will be kept hidden. Take, for example, a gym
locker room or even a bathroom. Having a sensor that can provide
meaningful data on a person’s behavior such as what
facilities are being used or if a person has
slipped and fallen, while still
maintaining anonymity, will be an important capability. That’s all for now. If you’d like to
recreate these examples and realize these benefits for
your own sensing application, you can pick up an IWR
millimeter wave EVM and get access to all source
code using this reference design at the link below. Thanks for watching. [MUSIC PLAYING]

7 thoughts on “People Counting with mmWave Sensors: Application Benefits

  1. I'm having IWR 1642 and IWR 1443 mmWave sensors. I'm in need of implementing a People counting application with IWR1642 EVM wherein waiting time for each person in the subzones should be displayed as similar to that of in 1:08

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