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Building construction face access control equipment:
Building construction belongs to the project construction site, there are certain risk factors, and non-workers are prohibited from entering and leaving at will. 0.3 MP USB camera ， According to the face recognition camera in the machine equipment, you can enter and exit immediately through face recognition.
Campus face recognition access control equipment:
There are many ordinary staff on the campus, and the security personnel cannot distinguish whether it is a school student or a migrant worker, so the security on the campus cannot be guaranteed.
Community face recognition access control smart terminal:
Residential communities are areas where workers gather, including community owners, property managers, security guards, and migrant workers. The intelligent terminal of the face recognition access control system can record all the information content of the staff's entry and exit according to the camera.
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Lasers seem to be far away from our lives, but if you look closely, you will find that lasers are everywhere in our lives, even everywhere. Laser cutting machines are also widely used, especially in industrial manufacturing. laser equipment，Perfectly and quickly cuts most metal materials regardless of hardness.
Sheet metal processing industry
Laser cutting can be described as a major revolution in sheet metal processing. Due to the high flexibility and fast cutting speed of laser cutting. Using a laser cutting machine for cutting processing is more efficient and faster to complete cutting processing requirements.
Agricultural machinery industry
The advanced laser processing technology, drawing system and numerical control technology in the laser cutting machine have been widely used in the processing and manufacturing of agricultural machinery products, which has accelerated the development of agricultural machinery production and improved economic benefits. Reduce the production cost of agricultural machinery products.
Advertising production industry
Laser cutting machine equipment can also process some complex graphics, which expands the product business scope of advertising companies and significantly increases the additional profits of small businesses.
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Porosity: Welding porosity will seriously affect the air tightness and welding strength of welding, laser welding solutions,and it is most likely to occur when welding materials with strong thermal conductivity.
Treatment method: remove oil, water, rust and other pollutants on the surface before welding, which can reduce the tendency of porosity; appropriately slow down the cooling time, and give enough time for the gas generated during the welding process to overflow, which can improve the quality of the molten pool.
Cracks: Due to the large shrinkage force generated by welding before full solidification, common welding cracks are transverse cracks and end cracks.
Treatment method: reduce internal stress by preheating before welding and annealing after welding
Spatter: There is oil on the material before welding or the material itself contains low boiling point elements. During the welding process, a closed space is formed, which is caused by the expansion of the gas in the space.
Treatment method: appropriately reduce the power; in the case of ensuring the penetration depth, appropriately increase the welding speed; appropriately increase the defocus amount to reduce the laser power density on the surface of the workpiece.
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Bulb
Advantages: Easy to install, Xiaobai can install it by himself, unscrew the old bulb, smart lighting fixtures ，screw on the new one, and follow the instructions to configure the network.
Cons: Requires bulb screw connectors.
NOTE: As with regular bulbs, you will need to purchase bulbs with correspondingly sized connectors.
ceiling lamp
Advantages: beautiful, good lighting effect, obvious dimming effect.
Disadvantages: more expensive, troublesome to install, if you can't install it, you need to ask a master;
switch panel
Advantages: The smart platform can be connected directly by replacing the panel, no need to replace the lamps
shortcoming:
The panel needs to be disassembled to replace the panel, which involves electrician knowledge. If you don't understand it, you need an electrician to replace it.
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Depending on the situation, it is possible. If your e-cigarette accidentally gets into or falls into water, remove it immediately and minimize the water content of the rod, as the liquid on the circuit board can lead to conduction.pod system Objects are connected to each other, causing a short circuit, and thus a short circuit occurs, and a short circuit can directly burn the entire circuit.
Precautions for e-cigarette water intake:
Of course, once our e-cigarettes are in water, they are immediately salvaged. Immediately separate the e-cigarette from the plume. Stop bringing the electrodes into contact with each other again.
If there is a hair dryer at home, you can use the hair dryer to dry the moisture in the tobacco rod, but pay attention: you must use cold air, remember not to use hot air. The circuit board may be shattered by the hot air.
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Low latency and anti-interference, stable sound quality
Wired headphones have no issues with latency. As long as the headphone cable is good, there will be no big delay, and a lot of interference during the transmission of electrical signals is avoided.
good sound quality
In the absence of problems such as time delay interference, wired headphones are more likely to be adjusted to the best sound quality by the manufacturer.Metal Wired Earphones， After all, in addition to receiving electrical signals, wireless headphones also involve processes such as data decoding and signal recovery.
Connect directly to the phone, no need to consider battery life
Wired earphones can be directly plugged into the mobile phone, and there is no need to consider whether there is electricity or not when playing music.
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How should the led electronic display screen not light up? How to self-check to find problems?
1. Check that the power supply is powered on. led display，Check whether the communication line is connected properly. (Sync screen)
2. The synchronization screen detects whether the green light of the communication between the sending card and the receiving card is flashing.
3. Whether the computer monitor is protected, or the display area is black or pure blue. (Sync screen)
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High brightness: The brightness of the LED display is greater than 8000mcd/㎡, which is the only large-scale display terminal that can be used in all weather; the brightness of the indoor LED display is greater than 2000mcd/㎡.
Long life: LED life is up to 100,000 hours (ten years) or more, this parameter generally refers to the design life, even if the brightness is dim;
Large viewing angle: the indoor viewing angle can be greater than 160 degrees, and the outdoor viewing angle can be greater than 120 degrees.indoor led display ， The size of the viewing angle depends on the shape of the LED light-emitting diode.
The screen area can be large or small, as small as less than one square meter, and as large as hundreds or thousands of square meters;
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Detachable Lens Camera
According to the structure of the imaging element, it is generally divided into a single-sensing element camera and a three-sensing element camera. game camera ,The single-sensing element camera is cheap, and the frame can be made larger and smaller, which meets the creation and needs of most people. Tri-sensor cameras are generally high-end cameras, they have better color, and they have a better focusing system.
professional dv
Professional camera refers to a type of camera with a relatively large appearance and strong operability, but its performance cannot reach the broadcast level. There are mainly wedding cameras and conference cameras.
studio camera
Movie machines are further divided into small movie machines used by ordinary movie enthusiasts' studios and large movie machines used by film companies
large movie machine
Today's large cameras generally have a variety of uses, and can be combined into broadcast cameras and movie cameras according to the choice of accessories.
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In terms of lifespan, the lifespan of OLEDs is generally shorter than that of LCDs. Due to its active light-emitting material technology, the loss will be greater. But despite this, for regular mobile phone use, display manufacturer， the service life of the screen is far enough for our daily use, so don't worry too much about it when purchasing
In terms of power consumption, since the OLED can actively control the light-emitting unit, the power consumption will be significantly lower than that of the LCD. In contrast, the increase in power consumption still has some impact on the battery life of the mobile phone. Power consumption, display, and cost are mutually restrictive, so you don’t need to pay too much attention.
At the same price, if you focus on the display of audio and video images and do not have high requirements for others, it is recommended to choose an OLED screen, but this means that the cost of mobile phone materials will be reduced on other hardware. If you don't care about the details of the screen and have requirements for the overall mobile phone performance, it is recommended to choose an LCD screen, which can ensure the balanced performance of the mobile phone.
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