24 February 2022
Technology continues to develop and interact with our lives
in new ways, and access control is no different. Biometric access control may
seem strange, but it’s growing in popularity around the world and is a fast-growing
part of the access control industry. Here is our quick guide about how biometric
access control works, types of biometric access control and how it can be used
So, how does biometric access control work?
A biometric access control system is a technology that uses
an individual’s unique features to identify them and grant access to restricted
resources. This feature could be physical, behavioural or chemical including
their face, fingerprint, voice or even DNA. As long as their feature is unique,
it could technically be used.
The main purpose of the technology is to determine or verify
an individual’s identity to allow only authorised people to do something and
prevent unauthorised individuals from accessing restricted resources. The
technology can be implemented in a number of ways to restrict access including
to areas of a building, computer networks or financial transactions.
It’s important to note as well that biometric access
techniques differ from other forms of access control as it only provides access
to who someone is, not what they know (e.g. an entry code) or what they have in
their possession (e.g. a swipe pass).
What are the benefits of biometric access control?
There are many benefits of biometric access control such as:
- It is incredibly difficult for someone to
replicate and trick a biometric reader into believing they are someone else
- The technology, once set up, is easy to update
with new users and often very easy for individuals to learn to use to gain
- Biometric access control overcomes the barrier
of individuals forgetting their access control password or devices such as a
key fob or passcode – they only need themselves
- When an individual’s identity is being confirmed
through biometric data, it is quicker than someone having to input a password
or go through a manual ID check
What are the drawbacks of biometric access control
There are a few drawbacks to biometric access control
- The initial investment can be higher than other
types of security
- False rejections and acceptance can occur preventing
individuals from accessing what is needed
- There are some privacy concerns over biometric
access control including the use of facial recognition
Types of biometric access control
Many different options can be used as a biometric pass to
gain access to restricted areas. Here are just a few that are currently
available but this list is likely to grow in the future.
- Fingerprint recognition. The
fingerprints’ unique features (ridge endings and bifurcations) are captured and
enhanced and placed in a template for access.
- 2D face recognition. A single image is
taken of someone’s face and converted into code which is then retrieved and
used when they try and gain access.
- 3D face recognition. A three-dimensional
map is produced of a face by either merging multiple photos or using an
- Iris recognition. Due to an iris’ unique
features, an individual can be identified through their iris. A scan is taken
and made into a template to gain future access.
- Hand geometry. A 3D scan and measurements
are taken for a person’s hand which is then used to create a three-dimensional
- DNA. Once a sample has been taken and
stored, it is then matched to an individual for them to gain access.
- Voice recognition. By inputting an
individual’s voice, an input is created and software can identify a person by
their voice input.
Would biometric access control work in my industry?
Biometric access control can be used across a large number
of industries. Any company that needs to restrict an employee or public access
can implement a biometric access control system and tailor it to their needs.
Within healthcare, there is a large amount of private and
confidential information, as well as employee-only areas. Biometric control
would allow for staff to access data or walk into a restricted area without
using passcodes or a keycard, such as for data servers or operating theatres.
The emergency services are made up of several services
including the police and fire department, both of which could benefit from
access control. For the police, biometric control could be used to ensure only
select individuals could access detention centres and employee-only areas of a
police station. For the fire department, biometric access could be used to
restrict access to dangerous equipment.
General business environments
Whether in a commercial office or warehouse setting,
biometric access control could be used in many ways. Biometrics could be used to
protect office buildings or could be used to allow employees to clock in and
out, giving accurate work times. It can also prevent unwanted visitors from
wandering into a warehouse.
How we fit in
Biometric access control can work in many different ways for
a variety of businesses. As the technology continues to develop, biometric
control is likely to develop and become more intuitive and word in new ways.
If you’re looking to upgrade your existing access control
system or introduce biometrics into a new system, get in touch. Our experienced
team are here to answer any questions you may have.
ABOUT THE AUTHOR – LYNDEN JONES
Lynden joined Touchstar ATC (formally Feedback Data) in a sales role for Access Control in 2010. Prior to joining the company, Lynden held both Production and Account Manager roles, gaining wide technical and commercial experience within the electronics market.
In 2013 Lynden was promoted to Sales Director and in 2017 he took overall responsibility of the business as Managing Director. As well as running Touchstar ATC, Lynden still remains extremely active in the sales and key account management aspects of the business. When not involved in the business, Lynden is a keen performance car enthusiast.