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RFID vs Wireless Mesh Networks

October 28, 2021

RFID vs Wireless Mesh Networks

Radio Frequency Identification (RFID) technology and wireless mesh networks are two popular technologies used for tracking and identifying assets. While RFID has been in use for over two decades, wireless mesh networks are a relatively new technology. In this blog post, we will compare these two technologies to help you understand which one is the best for your business.

What is RFID?

RFID is a wireless technology that uses radio waves to identify and track objects. RFID tags are attached to the objects being tracked, and RFID readers are used to read the information stored on the tags. RFID tags can be either passive or active. Passive tags are powered by the RFID reader when they are in range, while active tags have their own power source.

What is a Wireless Mesh Network?

A wireless mesh network is a network of devices that communicate with each other through radio waves. Mesh networks use a decentralized approach, where every device in the network can act as a router, forwarding data to other devices. This makes mesh networks more resilient than traditional networks that use a centralized approach.

Comparing RFID and Wireless Mesh Networks

Now that we've looked at what RFID and wireless mesh networks are, let's compare the two technologies based on some key factors.

Range

RFID has a limited range, typically between a few centimeters to a few meters. This makes it ideal for tracking objects in a small area, such as a warehouse. Wireless mesh networks, on the other hand, can cover much larger areas. Depending on the number of devices in the network and their range, a mesh network can cover several kilometers.

Cost

RFID tags are relatively inexpensive, with passive tags costing as little as a few cents each. However, RFID readers can be expensive, with some models costing thousands of dollars. Wireless mesh networks, on the other hand, require a larger upfront investment in equipment. However, once the network is in place, adding or removing devices is relatively inexpensive.

Reliability

RFID technology can be interfered with by other radio waves, such as those generated by other wireless devices. This can lead to inaccurate readings and lost tags. Wireless mesh networks are more reliable, as the decentralized approach means that if one device fails, the network can still function.

Security

RFID tags can be read by anyone with an RFID reader, which can pose a security risk. However, encryption and other security measures can be added to the data stored on RFID tags. Wireless mesh networks can also pose a security risk if not properly secured, but encryption and other security measures can also be added to the network.

Power Consumption

Passive RFID tags do not require an external power source, which means they can last for many years. However, active RFID tags require a battery, which must be replaced periodically. Wireless mesh devices also require a power source, but with low-power devices, this can last for several years.

Conclusion

Both RFID technology and wireless mesh networks have their strengths and weaknesses. RFID is ideal for tracking objects in a small area, while wireless mesh networks are better suited for larger areas. RFID is less expensive upfront, but wireless mesh networks can scale more easily. Ultimately, the choice between the two technologies will depend on your specific business needs.

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