Autonomous Vehicle Engineering - November 2021 - 11

Sensors
OEM integration testing, he said.
" We are focused on creating the
best solid state lidar solution that can be
used currently - used now - for manufacturing, "
Kamath explained. " Many
of the current generations of lidar have
their own pros and cons, but they're not
able to take that to large scale manufacturing.
Our 3.0 production system
will be large-scale manufacturable and
deployable by automotive manufacturers.
An automotive qualified product
that can be deployed at mass scale. "
The " in-a-bigger-box " 2.5 demo
system was a customer-evaluation
generation of product already undergoing
review by suppliers and vehicle
OEMs. " The big change going from 2.5
to 3.0 is our VCSEL drivers, " Kamath
noted. " The laser drivers we're using
right now are discrete components, so
they're kind of bulky. We're building
our own ASICs [application-specific
integrated circuits], and these ASICs
will be able to drive the VSCEL faster
and brighter. "
During our demo drive, the evaluation
unit was able to provide a real-time
display as we moved through suburban-Detroit
afternoon traffic. Its resolution
was unnerving in its fidelity, easily
picking out hand gestures of pedestrians
approaching a crosswalk. The 14 Hz
refresh rate, faster than most development
sensors stacks currently accommodate,
easily animated the scenes. OpSys
will provide multiple angular resolutions,
depending on if the lidars are forwardfacing
(0.1°), offset or rear-facing (0.2°),
or on the side of the vehicle (0.4°).
" On the sides where, for example,
robot taxis or last-mile delivery vehicles
want to be able to see right at, or near
the door; they don't need a very high
resolution, " Kamath said. " They just
want to detect maybe if there's a person
walking by. "
Exceeding industry targets
Kamath described the upcoming OpSys
3.0 system as having a 300-m (984-ft)
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November 2021 11
detection range, while noting that the
company is conforming its claims to
swiftly forming industry standards.
" In the automotive industry they like
to specify range based on the performance
on a 10 percent reflective target -
roughly, a black car. So, we are speccing
our 3.0 [system] at 200 meters (656 ft)
at 10 percent reflectivity, " he explained.
" That does not mean it cannot see
beyond 200 meters. It says that for a
10-percent-reflective target, giving high
probability of detection. "
According to Kamath, specifications
being requested by the OEMs are varying
widely depending on the application.

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Autonomous Vehicle Engineering - November 2021

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