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How Does Biometric Access Control System Work?

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    Biometric access control is a modern security system that relies heavily on scientific research and technological innovation. The great news is that everything can be explained in a simple way.

    Biometric access control systems, in essence, collect human biometric information. They're armed with scanners that compile the information in one place.

    There is a fingerprint reader that records and evaluates a sample of your fingerprints for future reference. Next, you register the fingerprints of the people you've decided you want to have access to whatever is behind the system.

    Now, you can simply scan your finger to unlock the door. The system examines the fingerprint to check if it is a match for one in its database.

    When this occurs, the door will unlock and you'll be allowed entry. When there is no matching entry, access is prohibited.

    Handprints are just one type of biometric security that can be used. However, fingerprint readers are the most popular biometric device since they are simple to use.

    Scanning the back of the eye, known as the retina, is also used. Additionally, facial recognition has begun to enter the mainstream, partly as a result of the introduction of the technology to consumers by the iPhone X in 2018.

    One of the most common forms of surveillance equipment today is biometric access control. Because it is the only access control solution that effectively merges safety and usability.

    Controlling who can enter a building through a certain point of entry (door, turnstile, elevator, etc.) is what you call access control.

    Although doors are the most popular installation site for access control systems, they can be utilised for any point of entry that employs an electronic lock mechanism.

    Biometrics is a technique for verifying a person's identity using non-verbal cues such as their unique physical characteristics, behavioural patterns, or chemical signature.

    This technology can also be used to control access to things like monetary transactions, transportation networks, and online databases.

    In these contexts, biometrics is primarily used to confirm or establish an individual's identification before allowing them access to restricted areas or data.

    Biometrics methods provide access to who people are as opposed to what they have within their possession, unlike code- and passcode systems or card access systems.

    A biographic access control system is, at its core, a pattern matching unit that collects certain types of biometric information from a person, zeroes in on a highlighted of that data, relates that feature to the a preset collective of attributes inside its database, and takes action based on the precision of the contrast.

    Biometric comparisons can be conducted using a wide range of traits, including but not limited to fingerprints, irises, hand geometry, speech patterns, and genetic data.

    An efficient system can accurately identify a person using biometric parameters, despite some restrictions.

    A sensing element, a quality assessment unit, a feature comparing and match unit, and a database are the four basic types of components that make up a typical biometric access control system.


    The process involves three steps: enrollment, live sample and comparison. Here's a quick overview of each. This step prepares the smart card for use and pairs the person with the card. A reference sample, such as a fingerprint or a sample of writing, is taken.

    Biometric characteristics are unique, personal characteristics that can be used to establish a person's identity. Unlike pass cards, keys and passwords, for example, the physical characteristics that can be used for biometric solutions cannot be transferred, or cannot be transferred easily, from one person to another.

    A biometric device is a security identification and authentication device. Such devices use automated methods of verifying or recognising the identity of a living person based on a physiological or behavioral characteristic. These characteristics include fingerprints, facial images, iris and voice recognition.

    Biometric data can be stored on an end user's device. This is most common on smartphones that use touch ID fingerprint sensors, such as Apple's 'Secure Enclave'. On-device storage can be used to store biometric data through a chip that holds the data separately to the device's network.

    It involves using biometric security software to automatically recognise people based on their behavioural or biological characteristics. The biometric technology currently used most often in physical access control is fingerprint recognition because of its lower price.

    Why Should You Use Biometrics?

    One major flaw in conventional access systems is that unauthorised individuals may get entry to a building by obtaining and using things or data that were originally meant for another user.

    Depending on the necessary amount of protection, this could be a major issue. To prevent people from using the restroom and leaving without buying anything, several coffee shops instal keypads on the entrance and print the passcode (often four digits) on the receipt.

    Whether or not this constitutes excellent customer service is irrelevant. The object being secured by the lock (a public restroom) doesn't require high-level security, thus a basic keypad will do.

    However, this sort of security mechanism is inadequate for more vital assets. The difficulty with passwords is that they are simply information, and so can be readily shared and spread around an endless number of people, even if they aren't authorised to do so.

    Key, fobs, and Identity cards are all examples of physical access tokens, and they all possess a common flaw: they can be lost or stolen, giving unauthorised people entry to the building.

    However, this weakness does not exist in biometrics. The fact that your biometrics code is always on you makes it difficult for anyone else to use it.

    This explains why, despite the fact that not all fingerprints are equally secure, even the most secure biometrics still are preferable to conventional security measures.

    To What Extent Does Biometric Access Control Help?

    In terms of safety, access control systems are highly recommended. It's an added safeguard that aids in regulating access to restricted areas. On the other hand, biometric access management adds an additional layer of safety.

    The problem with the conventional method of controlling entry (using keypads and passwords) is that the codes can be guessed, and the keycards can be misplaced or stolen.

    Another method that a code can be cracked is if the letters on a keyboard are worn or discoloured from repeated use.

    Therefore, it is possible, if unlikely, that an unauthorised individual may obtain the code and use it to gain entry.

    This is made much more difficult by the use of biometric scanning technology. To obtain entry, one must have a copy of the biological information recorded in the system.

    It is impossible to fool the system's security measures by pretending to be a legitimate user or by making a wild guess about their identity. As a result, biometric control is significantly more impenetrable.

    To What Extent Will Certain Industries Benefit?

    how does biometric access control system work

    This method of network access has numerous applications in a wide variety of fields. This being said, the following sectors will benefit the most from this technology:

    Governmental Work

    The government is full with departments staffed by individuals who frequently switch roles and often require new clearances. Furthermore, numerous government buildings house sensitive information.

    As a result, biometric access control could help them maintain the highest level of security. It has the ability to seal off areas, making it impossible for unauthorised individuals to get access to sensitive government or private facilities.


    Confidential and private data abounds in the healthcare sector as well. Fingerprint scanning can be useful in this situation once again.

    It is commonly used in healthcare facilities to control who has access to sensitive information or files. In contrast, it can be used to enter restricted hospital facilities, such as isolation wards, which house patients who may be carrying a contagious disease.

    In Common Business

    All businesses can benefit from this kind of access control. It's useful for safeguarding workplaces and, at the same time, providing a more convenient approach for employees to sign in each day.

    In this way, only authorised personnel will be able to enter the building, keeping out any potential intruders. It's also useful for closing off confidential spaces like archive rooms.

    Security and Order

    Biometric access control is a useful tool for jails, police stations, and other facilities. Keeping the public safe is an important responsibility of law enforcement.

    Controlling who enters and leaves facilities like jails, courts, and other places where criminals might be detained is the job of access control systems.

    The possibility of an outsider trying to get into a jail in order to aid an inmate's escape is greatly reduced.

    Clearly, there is a wide range of applications for biometric access control systems. This manual should have given you a better understanding of the technology and its applications. This could be the answer to your prayers if you've been searching for a solution to tighten up your security.

    What Are The Upsides of Using Biometric Identification For Door Locks?

    In terms of safety, access restriction is one of the best practises. It's a supplementary safeguard that aids in regulating access. However, the use of biometrics for entry control adds an extra layer of safety.

    The problem with conventional access control methods like keypads and passwords is that the codes could be guessed, and the passcodes could be lost or stolen.

    Furthermore, the numerals on a keyboard can appear a bit worn or faded after repeated use, revealing which numbers are used in the code.

    There is, however, a remote but not impossible chance that an unauthorised someone may obtain the code and use it to gain entry.

    Since adopting biometric scanning, this has become a lot more difficult. In order to obtain entry, one must have a copy of the system's biological data.

    If you want to bypass the security measures set up to prevent unauthorised entry, you'll need an authorised user to be present, as you can't simply imitate biological data or hope for the best.

    Therefore, biometric access management is significantly safer and more difficult to circumvent..

    Biometric-Based Access Control: The Pros And Cons

    finger print scan for enter security system with copyspace.

    The use of biometrics for workplace security has many advantages, some of which are listed below.

    • Getting rid of system errors and improving productivity.
    • Raising employee responsibility
    • Monitoring Excessive Overtime
    • Assure first-rate integration capabilities
    • Voice and facial recognition should be used for multi-factor authentication.
    • Authentication using a variety of methods and data enrollments

    The benefits of fingerprints in access control typically outweigh the presumed security risks. Almost no other methods of access control are as adaptable, universal, and effective as this one.

    The rising use of fingerprints in network access raises some privacy problems, though. One reason that people have doubts about biometrics is that they don't know how much of their personal information they are willing to provide or how their data is used.

    Collecting personal information like fingerprints, voiceprints, and facial scans raises concerns that the information could be misused in the future.

    Another privacy concern is that, unlike a password, your prints, voice, and iris recognition are irreversible in the event of a data leak.

    In a more concrete sense, these gadgets, like any new artificial intelligence technology, aren't always accurate, allowing unauthorised people to enter a place.

    It can be an issue if a large number of workers come up at the same time each day because some devices take longer than conventional access control to allow entry.

    Due to the permanence and quantifiability of biometric access control features, access control systems that employ them are extremely versatile in terms of both location and time.

    While most of us are still getting used to having your face and voice analysed, researchers are hard at work on expanding biometrics' potential to include new human modes, such as EEG and ECG. 

    Despite their usefulness, biometric devices require a cautious application. Think long and hard about the implications of integrating biometric checks with the access control system, and be sure it's the best choice for your company, before making the switch.

    However, many people find that mobile access control—either in tandem with biometrics or on its own—is the best solution for their needs.


    Biometrics is a method of establishing an individual's identification with the use of objective, nonverbal indicators like their physical traits, behavioural patterns, or chemical signature.

    Financial transactions, public transit systems, and digital libraries are just some of the areas where this technology may be utilised to regulate user access. Imaging the retina at the rear of the eye is another common practise.

    The human body may be used as a database for a biometric access control system, which is a pattern matching device that gathers specific biometric data.

    In spite of these limitations, a good system may nevertheless properly identify a person by employing biometric characteristics.

    Fingerprints, irises, hand geometry, and even voice characteristics may all be used in biometric comparisons. As such, biometric access control may be used in many different contexts.

    There are a few industries in particular that stand to gain the most from this innovation. It can create barriers between different locations, preventing unauthorised people from entering secure government or commercial facilities.

    Used in the medical field, it allows access to secure areas of hospitals like isolation units.

    Biometrics provide an additional safeguard when used for door access control.

    It is far less likely that an outsider would try to break into a prison to help an inmate escape. Having a copy of the system's biological data is required for entrance.

    Incorporating biometrics into workplace security systems can provide a number of benefits, some of which are detailed below. Eliminating bugs and increasing output are only two of the advantages.

    There are several worries about the privacy implications of biometric access control systems. Access control systems that may be used on the go are becoming increasingly popular.

    Content Summary

    • Today's cutting-edge security systems, including biometric entry systems, are inextricably linked to the advancement of science and technology.
    • In essence, biometric access control systems harvest human biometric data.
    • Next, you set up an account and add the fingerprints of the persons you've determined you trust with the system's contents.
    • The usage of fingerprint scanning is just one example of biometric security.
    • But fingerprint readers are the most widely used biometric tool because of their ease of use.
    • Biometric access control is currently one of the most used types of surveillance technology.
    • Access control refers to the process of regulating who is allowed to enter a building by a designated entrance (door, turnstile, elevator, etc.).
    • Access control systems are often installed at doors, but can be used at any point of entry where an electronic lock mechanism is used.
    • A biometric access control system is essentially a pattern matching unit; it takes various forms of biometric data from a person, isolates a single feature from that data, compares that feature to a predetermined group of attributes stored in its database, and then takes appropriate action based on the accuracy of the contrast.
    • Every biometric access control system consists of four primary types of parts: a sensing element, a quality evaluation unit, a feature comparing and matching unit, and a database.
    • Conventional access systems have the primary issue of allowing unauthorised users to gain admission to a facility by stealing or otherwise acquiring and misusing credentials, keys, or other items that were intended for another user.
    • Physical access tokens, such as keys, fobs, and ID cards, share a similar flaw: they can be misplaced or stolen, allowing unauthorised individuals access to the facility.
    • If your biometrics code were embedded in something that is always on you, it would be very difficult for someone else to utilise it. This explains why certain fingerprints are more safe than others, yet even the least secure biometrics are still preferable than the status quo of security.
    • The standard approach to access control (keypads and passwords) has the drawbacks of being easily hacked and keycards being easily lost or stolen.
    • There are many different government agencies, all manned by people who often take on new responsibilities and hence need to renew their security clearances.
    • Many government structures hold confidential data. Therefore, biometric access control might aid them in keeping their most secure.
    • It can create barriers between different locations, preventing unauthorised people from entering secure government or commercial facilities.
    • Confidential and sensitive information is also abundant in the healthcare industry.
    • Keeping track of who can see which patient records is a standard practise at healthcare institutions using this method.
    • Having biometric access control can be helpful for places like prisons and police stations.
    • Traditional methods of access control rely on keypads and passwords, but they have the drawbacks of being susceptible to guessing and being easily lost or stolen.
    • There is a slim but not impossible possibility that an unauthorised individual may discover the code and exploit it to get access.
    • There was a significant increase in difficulty once biometric scanning was widely used.
    • Because you can't just fake biological data or take a chance, you'll need to have a legitimate user present if you want to get past the security measures designed to keep out intruders.
    • This means that biometric access control is harder to hack and far more secure.
    • Incorporating biometrics into workplace security systems can provide a number of benefits, some of which are detailed below.
    • Despite certain security concerns, fingerprint access control systems have several advantages.
    • There are very few other access control systems that are as flexible, ubiquitous, and efficient as this one.
    • Concerns about privacy are being raised by the growing use of fingerprint authentication for remote network access.
    • People's scepticism about biometrics stems, in part, from their uncertainty about how much and for what purposes they are ready to provide personal information.
    • There is apprehension that biometric data, such as fingerprints, voiceprints, and face scans, might be abused if collected.
    • Because biometric access control characteristics are permanent and quantifiable, access control systems that use them are very flexible in terms of location and time.
    • Before making the move to biometric checks as part of the access control system, make sure it's the best option for your business and carefully consider the repercussions.
    • However, many individuals find that mobile access control is the ideal answer for their needs, either alone or in conjunction with biometrics.
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