What is the shared car unlocking principle? How to share the car Bluetooth lock to unlock the phone? Sharing cars is a new mode of travel, which has attracted much attention due to its convenient use and relatively reasonable fees. It has become another viable travel solution after sharing bicycles. We all know that after sharing a car to make an appointment through a mobile phone and implementing smart unlocking in a mobile phone app, what is the technical principle of this quick operation process? The door lock of a shared car is in fact a Bluetooth lock. The principle of opening a door is similar to that of a shared bicycle Bluetooth unlock, which is unlocked through a mobile phone APP. The main principle is that the mobile phone and the car lock chip realize communication through Bluetooth technology, and the mobile phone realizes communication through the APP and the server, and the data transmission between the two parties. The core principle lies in the Bluetooth short-distance communication function. Bluetooth can transmit data commands when it is connected. This is the basis for the shared car to unlock the mobile phone. The specific steps are as follows: 1, mobile phone APP to find a nearby available car, view the car information, select and reserve the car, the user clicks smart unlock, this time the database number information of the vehicle will be sent to the server through the phone, and request the unlock operation (need network connection support) . 2. The server receives the user's request, confirms the vehicle's information, and locates and sends the unlock command (Bluetooth unlocking key). 3. The mobile phone APP receives the unlock command and transmits it to the car lock chip through the Bluetooth connection. Note that the mobile phone needs to stay open in the Bluetooth connection range. 4, The vehicle lock chip receives the unlock command, executes the unlock operation, commands the lock cylinder to open the lock action, and the door lock is automatically opened. 5. The unlocked state of the central locking of the door allows the user to enter the cab and close the door for use. 6. Close the door when returning the car. The lock will be automatically closed. At the same time, click to end the use in the mobile phone APP to end the journey. The above is the smart lock Chinese network Xiaobian finishing publishing shared car unlocking principle, more car lock knowledge, please pay attention to the content of this site! ASTM A249 Stainless Steel Tubes Stainless Steel Sanitary ASTM A249 Stainless Steel Tubes is the main tubing line for a piping system. Generally, ASTM A249 Stainless Steel Tubes are made in stainless steel 304 and 316l, but we provide other grade too such as hastelloy C22, 316Ti, Titanium and nickel alloy etc. Kaysen offer both sanitary seamless tubes and Sanitary Welded Tubes to ASTM A270, ASTM A249, A269, ASTM A554, DIN11850, and size is up to 12″. Inner and outer surface is polished to meet the high purity requirement of hygienic industries. Kaysen is ability to supplying qualified ASTM A249 Stainless Steel Tubes comply to your your condition and FDA,GMP requirement. ASTM A249 Stainless Steel Tubes,A249 Stainless Steel Tubes,1.4404 Stainless Steel Tubes,Stainless Steel Sanitary Tubes Kaysen Steel Industry Co., Ltd. , https://www.chinasanitaryvalve.com
ASTM A249 Stainless Steel Tubes - Sanitary Tubing
Material: SS304, SS316L, EN 1.4301, EN 1.4404, etc
OD diameter: 1/2" - 12"
Thickness: 0.5mm - 6mm
Standard: ASTM, JIS, DIN, JIS, SUS, GB
Length: 6m or customer made
Tolerance: OD. ±0.2mm; Thickness: ±0.02mm; Length: ±0.5mm
Surface Treatment: Matt Finish or Mirror Finish (320# 400# 600#) etc
Application: Boiler, heat exchanger, construction, hygienic, pharmacy, power, petrochemical
Strength:
Heat Treatment of solution annealing for the sanitary tubings and fittings are available
High precision on dimension and wall thickness
Both seamless and welded sanitary tubings are available
Length is up to 12 meters.
Min. order quantity of sanitary tubings is from 300Kgs.
Offer industrial pipe and tubes according to order.
PMI test to verify material grade.
Visual and surface 100% examination before shipment.
End protected for shipment.