| Consulting on Bluetooth solution
to remove wire clutter for an operation theatre
equipment |
| |
 |
| |
| The idea |
| To improve the operation theatre
equipment usability and functionality by converting
it from a wired to a wireless device using Bluetooth
technology. |
| |
| The client |
| World Leader in Critical Care
Medical Devices. |
| |
| The business challenge |
 |
BT communication
between host and target (part of the medical
device) by replacing the existing cable connection |
|
Bluetooth enabling of host
machine involved selecting
|
Bluetooth
hardware on host |
|
BT stack on the host
side |
|
Bluetooth mouse |
|
|
PIC microcontroller needed
to be upgraded due to
|
Absence
of UART port on the present microcontroller |
|
Limited memory on
the present microcontroller that is
insufficient for future use |
|
|
Minimal interference effects
of the BT connection on the devices within
the vicinity |
|
Unique identification of
target by the host without any user inputs
required |
|
BQB qualification of the
entire product |
|
| |
| Wipro’s solution |
|
A detailed
report describing the solution and approach
was provided. The report specified |
|
Bluetooth Components for
the target that included
|
Embedded
Bluetooth Chipset with SPP and application
development capability |
|
|
Bluetooth Components for
the host that included
|
3rd party
BT USB dongle |
|
Bluetooth stack on
the host running Redhat Linux |
|
|
Various commercially available
components were evaluated for a comparative
study and the suitable one was recommended
as a part of the solution |
|
Important use cases were
analyzed and solutions were provided which
included
|
Hard
Key Pairing between host and target |
|
Discovery and Registration
of Targets with host |
|
Connection maintenance
|
|
Shutdown of connection |
|
|
High level software and
hardware architecture for host and target |
|
BQB product qualification
process |
|
| |
| Business benefits |
Adherence
to Industry Standards
|
Industry proven
chip set with the desired functionality was
used which |
Minimal Change Impact
|
The solution
enabled modifications which were minimally
intrusive to the existing code on the microcontroller |
Product Qualification
|
SIG1.2 compliance
and BQB certification was guaranteed for the
solution |
Smooth Transition
|
Minimally intrusive
hardware architecture allowed the target to
keep the cable connection along with the BT
hardware |
Product Scalability
|
An upgraded
PIC microcontroller was proposed having sufficient
GOIP pins, a UART port and sufficient memory
for future use |
|
