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What is Fingerprint Door Lock? How Do They Work?

Oct 22, 2020
What is Fingerprint Door Lock? How Do They Work?
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What is Fingerprint Door Lock? How Do They Work?

Security has always been a concern of paramount importance to human beings. We have gone from protecting valuables in the past by keeping them in dungeons to safeguarding data by layers and layers of cryptographic software. Either way, ensuring the well-being of our personal belongings has always been near the top of our priority list.
 
Thanks to technology, today security involves a wide range of software and hardware including web-based security services, biometrics and personal devices with integrated security levels. One of the biggest advances of the digital-technical age has been the introduction of biometrics into security.
 
Here, we shall take a look at fingerprint door lock, one of the earliest and most used systems deploying biometrics, and take an in-depth look at its workings.
 

What is fingerprint door lock?

Let’s start with the definition. Although the name in itself is pretty self-explanatory, a fingerprint lock may be defined as “a system which grants access to authorized personnel by virtue of recognizing their unique fingerprints.” You have probably looked at your hands countless times and noticed the ridges and valley pattern. The patterns were an important outcome of the human evolution as they enhanced our ability to grip. However, an unforeseen consequence of this particular step in the evolutionary process was to grant humans a fantastic method of identification.
 

Fingerprint Door Lock

Human fingerprints are extremely detailed and nearly unique. What is more, they are also very difficult to fake or alter and can endure over an individual’s lifespan. This makes them very suitable as long-term markers of human identity. When the technology which can recognize and differentiate between fingerprints is deployed in securing access to a door way, you get a “Fingerprint Door Lock System”.
 
However, a question which arises is that why should you not stick to the old door lock and key? Or use some other alternative methods instead of going for the relatively expensive electronic door lock systems. Well, not only are fingerprint door lock systems reliable and non-intrusive, there is also no danger of leaving your fingers at home or at office. Also, the fact that fingerprints are nearly always unique, makes fingerprint door locking system perfect with regards to security. And of course, you can hardly forget your fingerprints or even guess it, as is the case with an alphanumeric password. Thus, fingerprint locks can be said is the best electronic door locks for you.
 

How do fingerprint door locks work?

Okay, so let’s get down to how these door locks actually work. Basically, fingerprint locks operated by scanning and converting your fingerprint data into a numerical template.
 
Once you place your finger onto the scanner for the first time the conversion into numerical data takes place, and the fingerprint template is saved. This process is then repeated every time you want to grant someone access. The next time someone places his/her finger on the sensor, it matches the data obtained through the finger with the pre-saved values. If a match is found, access is granted and the door opens. On the other hand, if its someone else trying to get through, access is not allowed and the door remains locked. Simple, no?
 
Now, matching the algorithm is the most important process here. This is usually achieved by the Minutia matching process. In this, several minutia points are located on your finger’s pads, along with their position and direction when you register for the first time. This information is stored in the memory. While matching, the already stored fingerprint template is compared to the received input. If there is a match, a green LED usually signals it and the door is opened. The process is very quick and is completed in a fraction of a second. In case you are wondering, two instances of friction ridge skin impressions together constitute a minutia.
 

Disadvantages associated with fingerprint door lock systems

Fingerprint based systems while very useful do however have some disadvantages. And ironically enough, many of them stem from the system’s very virtues. While they are very, very hard to fool, it is not impossible. Scanners that use optical systems to obtain information can sometimes be fooled by an image of the finger. On the other hand, a person can get around capacitor-based scanners by using a mold. These situations are avoided by using pulse and heat detectors also called live finger detection.
 
Another major issue with fingerprint door locks is that if someone does manage to create a copy/mold/image of your hand that can open doors, well, you are in deep trouble. Since you can’t really reset fingerprints the way you can with a normal password, it will mean either replacing locks or using a combination of pin and fingerprints.
 
Also, sometimes the scanner may refuse to recognize your finger in case of scarring or cuts or abrasions. Power cuts, battery discharge are other common issues associated with these door locking systems, which have the potential to leave you stranded outside your workplace or office. They are forestalled by integrating a mechanical system, where you can use a key to unlock the door in case of such a failure.
 

Advantages over other biometric systems

There are certainly other biometric systems as well that incorporate many of the advantages associated with fingerprint locking systems. For example, iris scanning plugs the slight potential for security breaches left by fingerprint-based systems. Voice based authentication on the other hand, lets you just speak to open the door without even requiring you to place your finger on it.
 
However, iris scanners are very expensive as compared to fingerprint door lock systems and many people may find the experience of getting their eyes scanned, uncomfortable. While it appears perfect for high security government installations, fingerprint door lock systems are much more affordable and comfortable when it is out homes or offices that are being talked about.
 
Similarly, despite all its advantages, voice based biometric door opening systems have a very serious flaw. The rate of failure is very high. You may have a hoarse throat or a cold and the door will remain unyielding before you, refusing to recognize your voice.
 

What to look for in fingerprint door locks?

Now that you know all about fingerprint door locks, you may be itching to get one and install it at your home or office. There are just a couple of things that you should keep in mind while getting a fingerprint lock system installed.
 
First of all, make sure that it has a keypad or a mechanical key slot. This will make sure that in case the electronic door lock is unable to recognize your fingerprints for some reasons, say a cut or even a power failure, you have an alternative way to get in.
 
Make sure that you check the FRR (False Rejection Rate) as well as you don’t want to purchase one with a high FRR. Also, locks made of tough brass or steel are recommended over aluminium since they cannot be broken using a crowbar and back the intelligence of the fingerprint scanner system with their sturdiness and strength.
 
Checking what power the system is also a good idea. There are a whole range of systems available that may draw their power from batteries or that could be connected to your main power supply.
 
Also take a look at the number of fingerprints that can be stored — or in other words, the number of people that can be granted access at once. This is particularly important when you are using the system to secure the doors at your offices and require a lot of people to be able to go in and out.
 
Conclusion
Fingerprint locks are pretty awesome. Secure, affordable, non-intrusive and almost fail safe, these systems don’t require you to carry a key or remember a password. You can also grant access to as many people as you want and remove their access at your pleasure. In short, whether it’s your home that you want to protect or your office, definitely consider getting a fingerprint door lock installed; it is very likely to prove to be worth your money.
 
Which is the best fingerprint door lock that you should choose. PM us for more details. We supply best electronic door locks in whole Malaysia.

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What features to look when buying a smart door lock?

Oct 9, 2020
What features to look when buying a smart door lock?
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10 features to consider before buying a smart door lock

Battery life

The majority of smart locks operate on either multiple AA alkaline batteries or a rechargeable lithium-ion cell. Whatever type of battery your smart door lock uses, you’ll still get an alert on your app when battery power gets low. Moreover, the housing mounted on the inside of your door will often include an LED that will flash red when the battery needs to be replaced or recharged. How long do these batteries normally last? Well, it all depends on the smart door lock and its functions. Many companies rate their battery life in terms of the number of “cycles” — that is, the total number of physical locks and unlocks — and power usually lasts anywhere from three months to a year, depending on the type of lock and the functions it performs.
 

Alternate unlocking way

Bluetooth and Wi-Fi may be great, but they are none the less occasionally unreliable. Even technology companies whose job it is to manufacture smart door locks are aware of this potential problem. So, they’ve come up with alternative ways for locking/unlocking smart door locks. As well as wireless unlocking techniques, more and more practical smart locks now offer alternative physical or electronic entry options, including PIN codes (sometimes with an add-on keypad, also Bluetooth-connected) and/or a physical key. A small number of smart door lock suppliers also offer a key fob to wirelessly unlock a door if you don’t have your smartphone with you.
 

Auto lock/unlock

Bluetooth enabled door locks usually provide keyless or PIN-less entry. When you’re carrying your smartphone, a smart door lock — particularly a retrofit lock — may let you auto-unlock your door when you are a prescribed distance away, and auto-lock behind you after a user-prescribed period of time.  However, this prescribed distance is usually limited to around 30 feet, and it has to be remembered that you can only carry out this function from outside the property. A best smart door locks with keypads generally won’t include proximity auto-unlock capabilities for sound security reasons, like preventing an intruder or thief from entering a property using a lost or stolen phone.
 

Guest keys

Smart door locks, particularly retrofit models, let you assign “keys” for visitors who you’re happy to let into your home in your absence: visitors like out-of-town friends or family members, service workers or delivery people, or neighbours watering the plants, taking in the mail or or feeding the cat while you’re away. You may have come across this particular practice if you’ve ever stayed in an Airbnb property.  Entry ‘keys’ are sent via a text or email code through the smart door lock app, and these keys give your visitor wireless entry capabilities for a prescribed period of time or a prescribed number of entries. Replacement smart locks with keypads allow you to simply assign temporary passwords, timed for single use or for a specific number of hours or days. Most smart door locks also track who comes and goes, and smart locks with Wi-Fi can send an alert to your phone when someone comes or goes, so even when you’re still at work you’ll be able to find out whether the kids have returned home from their schools.
 

Weatherproof rating

Smart door locks are complicated pieces of kit, housing not just the traditional metal pins, tumblers, gears and other standard lock mechanics, but also sensitive electronics. Thus they need to be able to withstand extremes in weather conditions to function properly. Complete replacement smart door locks will indicate what temperatures the door lock is designed to withstand and often have an IP water/dust-proof rating. However, not all smart locks are born equal: not all can withstand adverse weather conditions over a prolonged period. If you want to ensure that your smart lock is up to the job, no matter what the weather throws at it, then only buy from a reputable lock manufacturer with a long and proven track record of testing for such conditions.
 

ANSI lock quality

Most physical door locks will have their own distinct specifications and idiosyncrasies; so it’s difficult to establish whether the smart lock you’re considering buying will be up to the job. In order to make that choice a little easier, 3 standard lock designations have been introduced by the ANSI/BHMA (American national Standards Institute/ Builders’ Hardware Manufacturers Association). These designation tests judge locks on their robustness and security against picking, bumping, other physical attacks along with the longevity of the locking/unlocking mechanism. The 3 designation grades are:
 
Grade 1
The strongest grade, usually reserved for commercial applications
 
Grade 2
The most common residential lock, and most commonly bought ANSI-approved lock
 
Grade 3
Usually a secondary lock to supplement a grade 1 or 2 lock.

 

Wireless security

Security is always a concern, especially when you constantly hear and read about hacking attacks. That concern is no different for Wi-Fi security. Most smrt door lock manufactures will publish the technical specification of their locks and tell you just how secure their W-Fi security is, but it should be remembered that there is no ‘best’ wireless security scheme or standard for smart door locks. The best smart lock you can hope to discover is just how high a priority the smart door lock manufacturer places on the issue. The only way you’ll discover that, unfortunately, is through extensive research. What can be said with some sort of conviction, however, is that the best keylss door lock – that is the most hack-proof – are keypad-enabled models that don’t use Bluetooth or Wi-Fi as their primary entry method.
 

Smart home compatibility

Most smart door locks can be integrated into an existing smart home environment — using Amazon Alexa, Google Home, Apple HomeKit, IFTTT (If This Then That), Z-Wave, ZigBee, Samsung SmartThings — so it’s easy enough to incorporate the locking of doors, turning on lights and adjusting temperature controls into your smart routine. However, as things currently stand, very few smart door locks are compatible with all smart home technologies.
 

Voice control

An increasing number of smart door locks that are compatible with Amazon and HomeKit also provide Alexa and Siri voice control. However, this voice control capability is usually limited to locking the door when you’re inside your home. Amazon recently approved an unlock voice control protocol which requires the user to provide a spoken password after a spoken unlock command. A growing number of lock makers are also just beginning to implement this new Alexa Key “speak to unlock” feature.
 

Fit and finish

Traditional door lock vendors with a vaulted pedigree offer a wide variety of smart door lock hardware finishes and trims and matching latch mechanisms, including variations of silver, bronze, brass and black. Newer tech-focused smart lock providers, however, do not offer such choices. Hence if aesthetics is important to you, your digital door lock purchase options are limited.
 

If you are going to find the best smart lock but have no idea, we are here welcome every one of you to contact us for a FREE advisory. We are passion to be your best smart door lock supplier in Malaysia.
Hotline 1700-818-808 / 03-7499 3006


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Types of Digital Door Locks

Sep 29, 2020
Types of Digital Door Locks
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Types of digital door lock
Every business is unique, which means that the type of digital lock you choose will depend on your business's own needs and each lock's capabilities. 
Many door locks, regardless of its type, offer multiple keyless ways to unlock the door in the event of a lost key or forgotten code. 

Keypad door locks
A keypad door lock model requires a PIN to unlock the door. It is the best door lock because they are very easy to install and maintain, and you can assign different codes to different users. You can change PIN at any time, allowing you to easily manage access to your building. 
Some models have protective mechanisms such as keypads that shut down after an incorrect code has been entered three times. Most newer models have a touch screen, but some have physical buttons. There are also combination keypad locks, which use a PIN in conjunction with another type of lock, such as deadbolts or handles. 

Keyless/wireless smart locks
Keyless and wireless smart locks are some of the most and best digital door lock options. They allow you to connect to your locks over a Wi-Fi connection, so you can control your digital door lock from anywhere in the world via a mobile app or remote. However, unless you purchase your digital lock as part of a smart home package, they may not come with a dedicated mobile app. 
Many digital door locks offer Bluetooth capability, which can automatically unlock your doors once you get within a certain distance. You may also be able to use your phone or a key card and tap the sensor to unlock the door. 

Key cards/ Smart card locks
Key cards are a way to unlock your Bluetooth or radio frequency identification (RFID)-enabled smart lock. You simply tap the card against the lock sensor to unlock it. Key cards can be programmed to unlock multiple door locks, so, for example, your one key card can let you into the front, side and office doors in your building. 
 
Fingerprint/Biometric door locks
Fingerprint/ biometric door locks are a popular and upcoming digital smart door lock option. You can unlock a door by having your fingerprint or (less commonly) your eye scanned. This is a very secure option, since fingerprints are all unique and are very difficult to copy. It's also a convenient option for individuals who don't have to carry a key card with them, which means they always have access. 
Fingerprint door locks work by scanning a fingerprint and converting it into a numerical template, which then tells the system to unlock the door. Because this system is so dependent on connectivity, thus look for a model with a backup option like a keypad or mechanical lock so you can still gain entry if your fingerprint cannot be scanned. 
Many models have a limit of 100 fingerprints that can be stored, so if your company is larger, a biometric lock may not be the best option for you. 



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