The electric tool is a kind of small electric motor or electromagnet as the power. A small tool that drives the working head through a transmission mechanism. There are a wide variety of electric tools, complete functions, easy to carry, and simple to use. They have been widely used in various industries and have entered the family. Electric tools are divided into handheld and movable There are two types. Hand-held power tools are more flexible, convenient and widely used. Many varieties have become necessary tools for production and life. There are many brands of power tools. According to the functions and uses of power tools, they are divided into nine categories. . Mainly are the following nine categories: Electronic Tools,Hand Drill,Electric Hammer,Electric Saw,Angle Grinder Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaoumachinery.com
Pattern locks, combination locks, face locks, locks and locks, unlocked fingerprints with higher security factor also appeared. So you know his working principle?
"Fingerprints have become almost synonymous with biometrics because of their lifelong invariability, uniqueness, and convenience. Fingerprints are the lines of unevenness on the frontal skin of a person's fingers. The lines are regularly arranged to form different lines. The pattern's starting point, ending point, joining point, and bifurcation point are called fingerprint's detailed feature points."
Note: The above paragraph was taken from Baidu Encyclopedia.
Through the above content, we know that the points formed by the interruption, bifurcation, or turning in the fingerprint are detailed feature points, and these detailed feature points can be said to provide the confirmation information of fingerprint uniqueness. Typical of these are end points and bifurcation points and bifurcation points, isolated points, ring points, and short lines. By recording the direction of your fingerprint lines, the position of the feature points (determining the position via the X/Y axis), etc., you can create a fingerprint lock that is unique in the world, and the key is your fingerprint.
Because the orientation of each fingerprint scan is not exactly the same, different stress points will also bring about different degrees of deformation, so that there will be a large number of fuzzy fingerprints, so the key to fingerprint recognition technology is to correctly extract features and achieve correct matching. Fingerprint recognition involves many disciplines such as image processing, pattern recognition, and computer vision.
To identify a fingerprint, first create a fingerprint library and make your original fingerprint data the initial identifier.
Fingerprint verification is a new type of authentication method with a better security factor on the mobile phone because the fingerprint corresponding to unlocking is owned by only one person, and mobile phone security and personal privacy can be effectively protected. So now many mobile phone manufacturers are rushing to add fingerprint recognition to their mobile phones. Pro, is your phone safe enough?
1. Metal cutting power tools, metal cutting power tools mainly include: electric drills, magnetic drills, electric reamers, electric knives, electric scissors, electric punching shears, electric reciprocating saws, electric pipe saws, electric tapping machines , Electric profile cutting machine, electric oblique cutting machine, electric weld beveling machine, multifunctional electric tools.
2. Sanding power tools, sanding power tools include; straight grinders, angle grinders, flexible shaft grinders, mold electric grinders, flat sanding machines. Belt sander,. Straight polishing machine, disc polishing machine.
3. Assembly electric tools, assembly electric tools include: electric wrenches, fixed torque electric wrenches, electric screwdrivers, electric expansion planes, electric self-powered screwdrivers, electric pull willow guns.
4. Construction road power tools, construction road power tools including: concrete vibrator, electric hammer, hammer drill, impact drill, electric pick, electric floor polisher, electric stone cutter, willow bolt wrench, wet grinding Light machine, electric steel disc cutter, electric pipe threader, electric pipe bender, electric engineering drill, electric scraper, electric brick wall milling machine
5. Mine power tools, mining power tools include: electric rock drilling face, rock electric drill,
6. Railway power tools, railway power tools include: railway electric wrench, sleeper electric drill, sleeper electric pick
7. Power tools for agriculture and animal husbandry, including: electric scissors machine, electric tea plucking machine, electric wine spraying machine, electric hoof repairing machine, electric food sampling machine.
8. Forestry power tools, forestry power tools include electric band saws, electric planers, electric plugs, woodworking multi-tools, electric pruners, electric pruners, electric slotting machines, electric chain saws, electric curves Saws, electric wood milling, woodworking knife grinders, electric circular saws, electric wood drills.
9. Other types of electric tools. Other types of electric tools include: plastic welding guns. Electric cloth cutting machine, electric air Pump, electric pipe cleaning machine, electric crimping machine, plaster chainsaw, electric engraving machine, electric rust remover, plaster electric shears, electric carpet shears, electric dental drill, electric sternum saw, electric bone drill ,
How Fingerprinting Works