Smart car lock mechanical structure design drawing sharing. The application of smart parking locks is more and more widely used. The general smart parking locks are divided into two types: smart remote parking locks based on infrared data transmission; mobile phone APPs based on Bluetooth data transmission control smart parking locks, and the connection modes are not the same. There are also differences in the design, the main structure is similar, the same is to achieve remote control smart car lock, to achieve the car control, do not need to get off the manual operation.
The smart parking lock shall be controlled according to the instructions of the control circuit to achieve the lifting and lowering control of the turning arm so as to realize the berthing and the exit of the vehicle. In terms of function, smart car locks can be divided into three parts: high-frequency circuits, control circuits and mechanical equipment.
High-frequency circuit includes RFID signal transceiver chip, detection filter amplification circuit, protection circuit and other modules; control circuit consists of microcontroller chip, motor and drive circuit, power module; mechanical equipment part from the rotating shaft, positioning gear, gear and card Buckle switch.
Smart car lock open, close the software process as shown:
When the vehicle is far away from the parking space, the electronic tag is out of the working range of the RFID reader, and the entire circuit is in a standby sleep state, which keeps the power consumption low. When the vehicle approaches the parking space (within 20m), the reader gradually receives the RF signal sent back by the electronic tag carried by the vehicle.
The microprocessor module STC11F32XE activates the entire circuit from the standby state, and the high-frequency module demodulates and decodes the received feedback information. If the decoding is successful, the received identity information is matched with the legal identity saved by the system to intelligently determine whether the vehicle is the owner of the parking space.
If the information matching fails, it is regarded as an illegal vehicle, and the system continues to decode; if the ratio is successful, it is considered as a legal vehicle. The MCU sends a command message to unlock the parking lock, turns on the motor, automatically turns the parking lock flip arm, and parks the vehicle in the parking space. On the smart parking is completed.
When the vehicle leaves the parking space, leaving the RFID operating range, the smart car position sensor does not sense the signal sent back by the vehicle unit. The start timer is delayed by 15 seconds. After the timer expires, if the electronic label information is still not received, the vehicle has been confirmed. After leaving, the parking lock will automatically rise and begin to protect the parking space, waiting for the next stop of the vehicle.
Considering the cost of RFID readers, you can replace them with Bluetooth communication modules to implement Bluetooth transmission instructions.
Intelligent Car Lock Design Based on Infrared Transmission:
Using infrared remote control technology combined with single-chip microcomputer, parking lock is mainly composed of transmitting module, receiving module and control module. The transmitting module consists of key, signal generating circuit, modulating circuit, driving circuit and infrared transmitter. Its function is launch vehicle. Identity Information;
The receiving module is composed of an infrared receiver, an amplifier circuit, and a demodulation and shaping circuit, and is responsible for converting the infrared signal into an electric signal and sending it to the single chip microcomputer;
The control circuit is mainly composed of a single-chip relay relay contactor and alarm circuit; the single-chip microcomputer is responsible for recognizing the received key code and controlling the closing of the parking lock.
Intelligent parking lock mechanical structure design ideasSmart Car Lock Structure Design Based on Bluetooth Transmission:
The role of Bluetooth remote control parking lock: Parking lock is a remote control electromechanical device, the role is to prevent others from occupying their own car parking spaces, so that their own cars come with stop. The installation position of the parking lock is generally installed at 1/3 of the middle entrance of the parking space, and the installation conditions are required to be on the flat surface of cement.
The use of wireless transceiver module and codec chip to complete the remote control signal transmission and reception, and through the microcontroller to decode the signal processing and feedback to the stepper motor, to achieve the purpose of parking lock automatic lifting; To prevent the remote control from misuse, the introduction of the lock The ultrasonic module serves as a detection unit for monitoring whether there is a car above the parking space, effectively avoiding the loss of the mechanical parts of the vehicle when the parking lock is opened incorrectly when parking above the parking space.
The above information comes from the Internet, published by the smart lock China Network Xiaobian release, more parking lock knowledge, please pay attention to the site section!
With the constant improvement of economic level, people` requirements on the quality of paper are increasing high. A great number of paper products must have excellent resistance to fracture under moist state, in other words, must have a certain degree of wet strength. While the traditional papermaking wet strength agents are urea resin and melamino-formaldehyde, both belonging to formaldehyde resin with intense pungent smell and certain toxicity, and can be used in acid condition to acquire the wet strength. However the whiteness will descend a lot and the paper will be weak after the finished paper acquiring the wet strength. Polyamide polyamine epichlorohydrin resin (PAE) is water soluble, cationoid and thermosetting resin. This product is a non-formaldehyde polymer, non-toxic and tasteless, with a wide range of PH value and suitable for acid, neutral or slightly alkaline papermaking conditions, as well as the acid condition. Wet strength effect is better than the urea-formaldehyde resins and melamine formaldehyde resin. PAE resin, which is an excellent Wet Strength Agent, develops fast in recent years with China`s paper industry development.
The high performance papermaking wet strength agent (PAE) that we produced has been widely used in a great amount of domestic factories and the finished paper products` wet strength index has surpass the similar products in domestic and foreign counties.
1. Performance Indicators
|
Item |
Indicator |
|
Appearance |
Light yellow to light amber translucent liquid |
|
Solid content,% |
25 |
|
Viscosity mpa.s (25℃) |
25~70 |
|
PH value |
4.0~6.0 |
|
Density kg/l |
1.03 |
|
Ion type |
Cationic |
|
Ice point (℃) |
-1℃ |
|
Storage period (under normal temperature) |
≥90 |
|
Solubility |
Diffluent in cold water |
2. Application
PAE active ingredient is polyamide epichlorohydrin thermosetting resins that can be used as below:
1. Paper products with the need for drying or wiping water, such as: napkins, wet tissue paper, facial tissue, paper napkins, kitchen towels, wiping window paper, industrial wipes, lens wiping paper, cosmetic paper etc.;
2. Outdoor paper: such as kraft paper, packing paper, outdoor poster paper, construction paper, sack paper, map paper, germinating paper, fruit bag paper;
3. Wet wrapping materials: such as paper cups paper, meat paper, wrapping paper and boxes for fruits and vegetables, frozen and refined food packaging paper, pressure sensitive copy paper, filter paper, leaching processing paper and tea bag paper;
4. Paper soaked in water: as photographic raw paper. Instead of disposable textile products, such as hospital bed sheets, toilet paper and other disposable hospital garb.
Other issues such as cigarette paper, paper used for invoices.
PAE, as wet strength agent excellent efficiency (PAE), has been widely accepted by the papermaking industry
5. Storage Condition
Storage: Avoid direct sunlight, prohibiting contact with concentrated acids. Storage temperature is 0 ~ 35 ℃and the product can be stored for up to 3 months under 5 ~ 35 ℃.
4.Package and Transportation Safety
Package: 200 kg polyethylene barrels or 1000 kg IBC barrels.
Transportation: The product is non-flammable, non-explosive and low corrosive and non-dangerous. It can use plastic buckets as containers on railways, highways, aviation, marine to achieve the purpose of the safe transport, and if the leaking occurs during transportation, you can simply rinse on the spot.
Wet Strength Agent
Wet Strength Agent,Polyamide Epichlorohydrin Resin,WSR,Wetting Strength Agent
Shandong Tiancheng Chemical Co., Ltd. , https://www.akdchemical.nl