The mechanical concealed cistern is a common bathroom fixture that stores flush water and controls flushing. It is usually installed in the wall, and there is only a button on the outside to start the flush. Its design makes the water tank no longer occupy the toilet space, thus providing more free space and beautiful appearance. Mechanical Concealed Cistern, Concealed Flushing Cistern, Toilet Flush Tank, Build In Toilet Cistern Guangdong Fabia Intelligent Technology Co., Ltd , https://www.smartfabiatoilet.com
Fingerprint recognition has been one of the earliest biometric technologies, and as its systems have advanced, they have expanded beyond key sectors like finance, government, and airports. This widespread adoption has made it increasingly common in civil applications such as smart buildings and personal computers, making it the most widely used and dominant biometric technology in the market. According to statistics, in 2005, the Chinese biometric market sold about 165,000 units, with over 96% being fingerprint-based devices. However, despite its popularity, fingerprint recognition faces several challenges.
In real-world scenarios, users often experience issues such as repeated attempts to unlock doors or access systems, only to be denied due to poor recognition. Individuals with faint fingerprints, such as manual workers, may find it difficult for the system to identify them. The accuracy of fingerprint recognition is also affected by environmental factors like humidity and cleanliness of the fingers. Dirt, oil, or water on the finger can lead to failed scans or inaccurate results.
The performance of fingerprint recognition is typically measured using metrics such as FRR (False Reject Rate), FAR (False Accept Rate), FTT (False Transaction Rate), and EER (Equal Error Rate). Although many vendors claim impressive figures—such as FRR below 0.01% and FAR below 0.001%—these standards are rarely met in published research or independent testing. This highlights the limitations of current fingerprint technology.
Some of the main shortcomings of fingerprint recognition include high sensitivity to environmental conditions, difficulty in identifying individuals with low-quality or damaged fingerprints, and the risk of fingerprint data being copied or forged. Additionally, repeated use of the same fingerprint can leave residues on the sensor, which could potentially be used for unauthorized replication.
In contrast, vein recognition technology offers a more secure and reliable alternative. Finger vein recognition uses the unique pattern of veins inside the finger for identification. The process involves shining a specific wavelength of light through the finger, which is absorbed by the blood, creating an image of the vein structure. This internal biological feature is analyzed and compared to pre-registered data to verify identity.
Medical studies show that the shape and pattern of finger veins are unique to each individual and remain stable throughout life. Unlike fingerprints, which can be altered or worn down, vein patterns are internal and cannot be easily imitated or stolen. This makes vein recognition highly secure and less prone to fraud.
Moreover, finger vein recognition is less affected by external factors such as dry skin, dirt, or moisture. The entire process, from capturing the image to digital processing, takes less than one second, ensuring both speed and high accuracy. It achieves a false positive rate as low as 0.0001%, a rejection rate of 0.01%, and a registration failure rate of 0%. These advantages make it superior to traditional fingerprint recognition in terms of security and user experience.
While many people may assume that finger vein recognition is expensive, the reality is that domestic vein recognition products now offer competitive pricing—often just one-tenth the cost of imported alternatives. In some cases, they even match the price of standard fingerprint solutions. This makes vein recognition not only more secure but also more accessible for a wide range of applications.
Space-saving: The design of the mechanical hidden water tank allows the water tank to be installed inside the wall, saving valuable bathroom space, providing more free space and a beautiful appearance.
Beautiful: The design of the hidden water tank makes it no longer stand in the bathroom like the traditional surface-mounted water tank, thus improving the overall aesthetics of the bathroom.
Water saving: The mechanical hidden water tank can precisely control the water volume when flushing, avoiding excessive consumption of water resources, thereby reducing water usage and saving water bills.
Long service life: Compared with the traditional surface-mounted water tank, the mechanical hidden water tank has a longer service life and lower maintenance costs because it is more concealed and less susceptible to external factors.
More hygienic: The traditional surface-mounted water tank needs to be cleaned frequently, and the scale and sundries hidden inside the water tank are not easy to be polluted by the outside world, so it is more hygienic.