"When foreign fingerprint lock intelligent sensing technology develops in full swing, many domestic enterprises still stay in the concept stage or research and development stage. Although the domestic fingerprint lock level has been improved in recent years, it can realize flood control alarm, authority management, and recording function. A variety of modern intelligent functions, but many core technologies still need foreign input, truly master the fingerprint lock core technology, use the fingerprint lock to achieve remote remote unlocking, intelligent control of the door fingerprint locks of enterprises," industry analysts said.
According to industry insiders, "fingerprint locks as high-tech products rely mainly on electronic technology and biometrics. The simpler the environment in which these technologies are located, the better. The more auxiliary functions, the more likely they are to reduce the main functions. Stability. Therefore, the function of selecting a fingerprint lock does not have to be excessive.
I believe that for the new thing of fingerprint lock, everyone can understand that some high-end residential areas are now using fingerprint locks. It is no longer necessary to carry a bunch of keys when entering or leaving the house. It is more convenient and simple, but the brand of fingerprint locks is still more. The functions that are available are different. Which one is best?
So which features are more useful for fingerprint locks? Here are some of the following features for everyone:
1, optical acquisition is more widely used than semiconductor acquisition
As a fingerprint lock, the first thing to do is to have a fingerprint open function.
It is understood that the fingerprints on the market now generally use optical fingerprint acquisition, and a few use semiconductor acquisition. Semiconductor acquisition technology is less susceptible to static electricity, sweat, dirt, finger wear, etc., lack of stability, and is not resistant to wear, short life and so on in the field of fingerprint locks. Optical acquisition can achieve the best precision due to multi-angle all-round acquisition, clear fingerprint pattern, stable identification, and effectively improve the instability of semiconductor acquisition. Therefore, it is widely used in fingerprint locks.
2, fingerprint verification and key double protection
Many consumers will think that the key is to open the cottage products. But the actual situation is just the opposite.
The national regulations require that the fingerprint lock must have a key-on function to leave the factory, which is mainly for security reasons. After all, the fingerprint lock is an electronic product, and the electronic product will have a business trip or no power. In order to prevent the fire or other disasters from causing damage to the electronic circuit and causing danger, the national mandatory fingerprint lock must be equipped with a key opening function. A fingerprint lock without a key-on function is unqualified.
3, information management functions enhance convenience
The information management functions mentioned here mainly include the function of adding/modifying/deleting user information, and the user information mainly includes fingerprint information and usage information. When a customer uses one of these features, other features are not affected.
One of the main uses of this function is to improve the convenience of the fingerprint lock. For example, when the relatives need to stay for a few days at home, as long as the fingerprints of the relatives are entered into the fingerprint lock, the relatives can freely open the fingerprint lock without having to configure the relatives. Very convenient. After the relatives leave, they can't open the door as long as the information is deleted. At home, the babysitter was asked to remove the babysitter's fingerprint after the babysitter resigned. She couldn't open the lock. She didn't have to worry about the babysitter stealing the keys and replacing the locks.
4, anti-mite alarm function is effective for home safety
The anti-smash alarm function can be said to be one of the most effective functions for improving home safety in the fingerprint lock function.
When the fingerprint lock is damaged by external violence, an alarm sounds automatically to remind the community of security. A better one can even send an alert message to the owner's mobile phone automatically, or directly contact the police to conduct an automatic alarm, so as to prevent thieves from entering the room.
5, voice operation prompts simplify operation
The voice operation prompt is that each part has a voice prompting the operation, which makes the operation simple, so that people who do not understand the operation can follow the prompt step by step to complete the operation. This function is very useful for the elderly and children.
Summary: Fingerprint locks are more convenient because they are more convenient to use, but they are also slowly becoming popular. However, we do not necessarily need to use all kinds of functions, so when you choose the fingerprint lock, it is still practical, choose the most useful. Locks.
(1)Tubing : CPVC is mainly used for processing tubing and hot water delivery
and corrosion medium. It can keep enough strength if the temperature is less
than 100℃ and can be
used for long time under higher inner pressure. CPVC pipe can be used as hot
sewage pipe, electroplating solution piping, thermochemistry agent transfer
piping of enterprises and the wet chlorine transfer piping.
(2) Fitting : CPVC Resin
can be used to produce the fittings of flow pipe, filtering material, and
spin-drier etc, as well as electrical appliances and electronic parts such as
wire way, conductor protective layer, electric switch, fuse closure door and
insulation material of cable. etc.
(3) Corrugated
board : the CPVC corrugated board has the natural corrosion resistance,
resistance to high (low) temperature, heat insulation performance is excellent.
(4)Foaming
material :The heat
resistance of foaming material of CPVC is better than that of PVC. The
shrinkage at high temperature is very small. It can be used as heat
preservation material of heat water pipe and steam pipe and so on. The
retentivity to solvent of CPVA with chlorine content more than 60% is very
good. The CPVC can be put into the solvent for foaming which can produce the
gas while heated, and you can get the homogeneous and minor forming gas. The
solvent such as hydrocarbon, aether and aldehyde etc with boiling point of 50- 160℃ can be used as vesicant.
Packing and Storage :
Kraft-paper
bag, Net Weight of 25±0.2kg per bag ; the product should be stored in dry and
ventilated warehouse, to prevent sunlight and moisture, stack height no more
than 10 bags, It is not dangerous cargo.
Advantage
of CPVC Resin
CPVC resin has excellent high temperature
resistance, corrosion resistance and flame retardant properties, widely used in
production of different industrial pipe, hot and cold water pipe and fire
fighting pipeline, superiority as follows :
(1) Widely use scope: CPVC the vicat softening point higher 40℃ than PVC resin, rigid PVC products
safe use of the average temperature is not more than 60℃, and CPVC hard products can be
used between 40℃ and 98 ℃ for a long time, it`s the few
polymer can be used in high temperature and high pressure.
(2) The superior mechanical
properties : CPVC tensile strength than
PVC increases by about 50%, than ABS resin, PP resin increases by about 1
times. Especially close to 100℃, CPVC can still maintain a strong rigidity, can fully meet at this
temperature to the requirements of the equipment and pipeline.
(3) Chemical resistance: CPVC not
only in room temperature resistance to chemical corrosion performance is
excellent, and at higher temperature still has the very good acid and alkali
resistance, chemical resistance, far better than PVC and other resin.
(4) Good flame retardant : CPVC
excellent flame retardant automatic quench, the time limit oxygen index is
sixty, because in the air will not fire, with no flame drip, restricted
diffusion flame and the smoke generation characteristics.
(5) Thermal conductivity: heat
conduction coefficient of CPVC is only 0.105 KW/(mk), with CPVC processing of
heat pipe, heat loss, less of heat insulating layer.
(6) From the influence of residual
chlorine in water, Polyolefin materials (such as PP, PE) meet water residual
chlorine can be decomposed, and CPVC is not be water residual chlorine
influence, won't appear crack and drip.
(7) Processing formability: The
same processing methods with PVC products, very easy and convenient
CPVC Compound
CPVC Compound,Pipes Grade CPVC Compound,Fittings Grade CPVC Compound
Shandong Gaoxin Chemical Co.,Ltd , http://www.gaoxinchem.com
