Clocks, for attendance control, appeared in 1888, when Willard Bundy invented the first system for this purpose. With the passage of time, these watches have gone through several transformations, until reaching the biometric clocks. With more than 100 years, attendance control clocks have come in different forms and have different names, however its purpose has always been the same: control over the assistance of workers in certain business. Thanks to advances in technology, many companies have been able to make very effective systems for assistance controls. This is done in order to view closely the performance of its employees. For this purpose, biometric clocks are the best option. These devices also come in different shapes and sizes and can be aimed towards a physical quality in particular.
In this way, it is possible to see biometric clocks with fingerprint readers, hand scanners or cameras for the analysis of facial features. Each one of these systems has its own scope and limitations. With regard to systems of facial features, it must be said that they are very effective, but require more devices than other systems. In addition, they are more expensive than devices for analysis of a finger or hand. By the side of systems for the analysis of a hand, or a finger, these appliances are those who are more easily. On the one hand, fingerprints have always been a very reliable identification factor, moreover, appliances of this type are the cheapest in the market. Apart from this, the readers of fingerprints or hands take up less space than a camera for the analysis of facial features.
A problem with these systems is that you required users to have totally clean hands, to not affect its operation, this is not very feasible in construction companies, workshops of Assembly, etc. However, these devices can be better in other types of companies. Biometric systems are ideal, not only as assistance controls, but also as access controls. In this way, it is possible that biometric clocks, recorded income of employees and prevent the entry of persons who do not work in a particular business. After all, a company must also pay attention to who enter its facilities.