RFID, NFC & UWB
Object identity, intentional taps, ranging, industrial wireless, and proximity-network evidence
RFID, NFC, UWB, WirelessHART, ISA100.11a, Z-Wave, proximity networks, IoT wireless
Your guide: Radio Remi
“Range, power, and data-rate is a triangle — pick two honestly, then measure the third in the real room.”
Start With the Story
A team does not choose RFID, NFC, UWB, WirelessHART, ISA100.11a, or Z-Wave because the names sound familiar. It chooses one because a system needs a kind of proof: object identity, a deliberate tap, distance evidence, industrial network behavior, or home automation reach.
Read this module as a route map for that proof. Start with the observation the system must trust, then follow the chapter path that turns a radio choice into placement evidence, security boundaries, operational records, and a retest trigger.
Learning Objectives
By the end of this module, you should be able to:
- Separate identity, tap, ranging, mesh, and automation use cases before choosing a technology.
- Explain how RFID, NFC, UWB, WirelessHART, ISA100.11a, and Z-Wave differ at a design-review level.
- Identify the evidence needed for range, placement, interference, security, commissioning, and maintenance decisions.
- Choose a practical path through the module based on the system problem in front of you.
- Recognize when a technology is being selected from familiarity rather than from fit evidence.
Module Route
Use this page as the route map for the RFID, NFC, UWB, and proximity-network chapters.
RFID path Start here when the system must identify tagged objects, readers, zones, tag types, frequency bands, deployment layout, security boundaries, and troubleshooting evidence.
NFC path Use this path when the interaction is deliberate and close, such as a phone tap, access handoff, tag programming task, NDEF record, or secure user action.
UWB path Use this path when the system needs ranging, location, anchor geometry, positioning quality, or security evidence around distance-sensitive behavior.
Industrial wireless path Use WirelessHART and ISA100.11a chapters when the deployment is a managed industrial network with commissioning, schedule, channel, security, and maintenance constraints.
Z-Wave path Use this path when the design problem is low-power automation, device inclusion, routing behavior, controller boundaries, and field troubleshooting.
Technology Fit
The first decision is not “which radio is best.” The first decision is what kind of evidence the system needs.
Object identity RFID chapters focus on whether a tagged item can be detected reliably enough for inventory, access, tracking, or workflow evidence.
Intentional interaction NFC chapters focus on close user or device actions where the short interaction distance is part of the design.
Position and range UWB chapters focus on time, distance, anchor placement, line-of-sight behavior, and calibration evidence.
Managed industrial networks WirelessHART and ISA100.11a chapters focus on planned network behavior, commissioning, schedules, channel use, security, and maintenance records.
Automation network behavior Z-Wave chapters focus on joining, routing, associations, controller roles, security state, and practical troubleshooting.
Evidence Loop
Every chapter should leave a decision record, not just vocabulary. Carry this loop through the module.
Observation Name what must be observed: identity, presence, tap intent, distance, channel health, route stability, or commissioning state.
Boundary Record who controls tags, readers, phones, anchors, gateways, controllers, keys, physical placement, and maintenance actions.
Environment Test representative materials, mounting, people movement, metal, liquids, device orientation, neighboring radios, and operational procedures.
Evidence Capture detection results, missed reads, false reads, range error, commissioning steps, security state, retry behavior, and failure recovery.
Retest trigger Recheck when tags, anchors, readers, phones, controllers, firmware, enclosure, mounting, security policy, or site layout changes.
Choose Your Path
If you are new to this module, use the problem statement to choose the first lane.
Need to identify items or assets? Start with RFID overview, fundamentals, tag types, frequency bands, standards, components, deployment, and troubleshooting.
Need a phone, badge, or tag tap? Start with NFC fundamentals, modes, NDEF, implementation, IoT integration, and security comparisons.
Need location or distance evidence? Start with UWB fundamentals, ranging techniques, positioning systems, and applications/security.
Need industrial wireless process-network behavior? Start with WirelessHART and ISA100.11a fundamentals, scheduling, channel hopping, protocol-stack comparison, network management, and security lab material.
Need low-power automation-network behavior? Start with Z-Wave overview, architecture, routing, practical deployment, and simulation chapters.Common Pitfalls
- Choosing RFID when the real requirement is position quality rather than identity.
- Choosing NFC for unattended sensing when no deliberate close interaction exists.
- Treating UWB range or position results as portable without anchor, environment, and calibration evidence.
- Comparing industrial wireless protocols without commissioning, maintenance, security, and plant operations constraints.
- Treating Z-Wave routing behavior as fixed after a single bench test.
- Leaving tag, reader, phone, anchor, controller, and gateway ownership out of the review record.
Knowledge Check
See Also
- RFID Overview for the first RFID route.
- NFC Fundamentals for close interaction and tag records.
- Ultra-Wideband for ranging and positioning concepts.
- WirelessHART for industrial wireless network behavior.
- Z-Wave Overview for automation-network routing and controller concepts.