February 2023 - 23
ansition
While this evolution has an obvious aesthetic appeal, the primary
advantages of migrating to software-driven devices boil down
to lower life-cycle costs and additional functional capabilities.
The older style HMIs contain many subcomponents - all
of which must be wired together, often by hand. Deployments
are sometimes a project-specific application with - for example
- screen masks being custom silkscreened for each customer
or application. This customization adds cost. Utilizing a software-driven
display allows for a standardized hardware approach
while decoupling functionality from hardware. Together, this
makes the initial hardware deployment much less costly.
Life-cycle costs are also impacted in other ways. Beyond the
upfront material cost improvements, the design flexibility provides
for relatively easy modifications. Oftentimes, systems are
changed after they have been placed in service. With traditional
hardware-based HMI devices, changes to applications in the
field can take years to deploy. Design modifications must be
laid out and wiring and panels modified in the field or replaced
entirely. For larger fleets, this is a lengthy effort and necessitates
running mixed operations (with both the old and new configurations)
for a considerable period of time. Software-based
panels reduce the entire process time down to weeks. Software
upgrades can be installed on dozens of trains per day with no
hardware modifications required at all. Mixed fleet running is
minimized, and the total cost of executing changes is a fraction
of that associated with hardware-based devices.
Utilizing a software-driven display allows for a
standardized hardware approach while decoupling
functionality from hardware
Deuta America, Corp.
The functional capabilities of these newer devices are also
significant. Multiple screens can be shown on the same hardware,
allowing for the provision of diagnostic or maintenance data,
messaging, etc. Graphics or even photos can be used to provide
context, mimicking the HMI designs seen in other industrial
areas such as automation and the automotive field. This can
greatly improve the human factor or " cognitive ergonomics "
of system design and improve operational reliability and safety.
FEBRUARY 2023 | MassTransitmag.com 23
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February 2023
Table of Contents for the Digital Edition of February 2023
Editor’s Notebook
People & Places
Nashville Public Transit Attracts Riders through Tourism Partnerships
2023 Mobility Outlook
Oklahoma Pilot Program Providing Reliable Door-to-Door Public Transit Service
The Coming Transition from Traditional Hardware Displays to Electronic Screens for Train Control
Fare Collection: How we pay for public transit is critical to securing its future
Unifying security systems for Mass Transit
Products
February 2023 - 1
February 2023 - 2
February 2023 - 3
February 2023 - 4
February 2023 - 5
February 2023 - Editor’s Notebook
February 2023 - 7
February 2023 - People & Places
February 2023 - 9
February 2023 - 10
February 2023 - 11
February 2023 - Nashville Public Transit Attracts Riders through Tourism Partnerships
February 2023 - 13
February 2023 - 2023 Mobility Outlook
February 2023 - 15
February 2023 - 16
February 2023 - 17
February 2023 - Oklahoma Pilot Program Providing Reliable Door-to-Door Public Transit Service
February 2023 - 19
February 2023 - 20
February 2023 - 21
February 2023 - The Coming Transition from Traditional Hardware Displays to Electronic Screens for Train Control
February 2023 - 23
February 2023 - 24
February 2023 - 25
February 2023 - Fare Collection: How we pay for public transit is critical to securing its future
February 2023 - 27
February 2023 - 28
February 2023 - 29
February 2023 - Unifying security systems for Mass Transit
February 2023 - 31
February 2023 - 32
February 2023 - Products
February 2023 - 34
February 2023 - 35
February 2023 - 36
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