IJCA Vol 4 i1 2025 webmag - Flipbook - Page 27
2025 | Volume 4, Issue 1
27
5.1.2 Proof of Concept for Transmitter-Receiver Systems
As per regulatory requirements that stipulate visible component labeling must be present and not encoded
(Certification and Accreditation Administration of the People’s Republic of China (CNCA), 2020), senderreceiver systems such as RFID do not meet this requirement.
However, considering the potential future changes in regulatory requirements, sender-receiver systems are
still considered in the subsequent PoC. Table 7 provides a summary of the conditions for the PoC related to
transmitter-receiver systems, including the technical parameters, required equipment, as well as the planned
test series and experiments.
Table 7: Framework conditions for the PoC for transmitter-receiver systems
FRAMEWORK CONDITIONS:
Focus
The objective is to automatically extract component IDs and homologation-labels and compare them with the
homologation data. In the PoC, the parameter of minimum activation power is continuously increased and the
transmission power is recorded. The value is noted at which the RFID tag is 昀椀rst detected. A lower value indicates a higher sensitivity of the tag.
Technical
parameters for
the test
component
The PoC is initially conducted in a square metal box under ideal environmental conditions to reduce electromagnetic interference. This also helps concentrate the radiation emitted by the antenna inside the box.
A schematic (left) and real representation (right) are presented in Figure 8.
Figure 8: Schematic and real test setup transmitter-receiver systems
Experimental
design
In the PoC, the performance of different RFID tags is evaluated with respect to the components according
to the de昀椀ned component classi昀椀cations (see Section 4.2.2).
The values for the experimental design of the PoC for the sender-receiver system are presented in Table 8.
Table 8: Experimental plan transmitter-receiver system
TAG TYPE
TRANSMISSION POWER
Miniweb-Tag
Minimum activation power
Dogbone-Tag
10 dBm
On-Metal-Tag
20 dBm
Flag-Tag
30 dBm
Four tags (Miniweb, Dogbone, On-Metal, and Flag-Tag) that have been approved within the BMW Group
are tested (BMW Group, 2023). In the PoC, the parameter of minimum activation power is continuously
increased, and the transmission power is recorded. Activation powers of 10 dBm, 20 dBm, and 30 dBm are
utilized.
