The speed gate anti-collision swing gate has many advantages compared with ordinary swing gates
The speed gate anti-collision swing gate has many advantages compared with ordinary swing gates
With the continuous upgrading of the community renovation, more and more occasions for swing gates are used, and the requirements for the use of swing gates are becoming more and more stringent. Shenzhen Tongdazhi technology company specializes in the production of swing gates, flap barrier , tripod turnstile , full-height gates, and speed gates. For pedestrian passage gates, various series of swing gates are professionally developed. Recently, anti-collision swing gates have been developed. Compared with ordinary swing gates, the anti-collision swing gates have many advantages. The specific points are as follows:
The structure principle of the anti-collision swing gate adopts the encoder limit, that is to say, wherever the swing arm moves, the main board knows the moving position, and the main board is offset to issue a corrective instruction to restore the swing arm to the specified zero position. Compared with the old swing gates in the past, the accuracy is much higher. It can be accurate to 1°, which is incomparable to ordinary swing gates. The encoder sends out a pulse signal every time it rotates a unit of angle (also sends out a sine and cosine signal, then subdivides it, and chops a higher frequency pulse), usually A phase, B phase, Z phase output, Phase A and Phase B are pulse outputs that are mutually delayed by 1/4 cycle. According to the delay relationship, the forward and reverse can be distinguished, and the frequency can be doubled or quadrupled by taking the rising and falling edges of Phase A and B; Phase Z is single Turn pulse, that is, one pulse is sent out every turn.
Anti-collision swing gate
2. The anti-collision swing brake adopts electromagnetic valve braking, and suddenly there is external force, the swing brake will automatically lock. According to different users, the selected torque is different. Generally, 50NM-100NM and the model diameter 76-94mm are selected. The purpose of the electromagnetic clutch (brake) is to make the swing brake have a braking effect when it is off-position. Similar to the braking function of a car, the teeth of the brake are generally heat treated to reach HC45-60, which improves the service life and brakes sensitively. , Accurate and rapid.
3. Electron beams. There is also a pulse signal for the beam, which is similar to the car reversing radar. When there is signal interference, a pulse will be emitted. The control board will make a relative judgment to judge the position of the person and the luggage position, etc., whether to turn on the alarm or anti-pinch or anti-pinch Trailing signal. Just like human eyes and ears, make accurate judgments in the passage. It is also used for detection by military enterprises. It is relatively easy to purchase. The price is a little higher in China, but the quality is stable, anti-glare (outdoor), anti-interference (electromagnetic wave), and it is already very favorable compared to foreign products. There are generally two types of opposite shots, PNP and NPN, which is what we often call normally open state and normally closed state. Based on previous design experience, our company prefers to use PNP normally closed, and it can also show the swing gate in real time. Working status.
4. The motherboard requires higher requirements than ordinary swing gates, faster processing capacity, large capacity, powerful control motherboard, supports various software development interfaces, supports pulse signal opening function, for example, supports swiping pulse signals, fingerprint machine collecting and comparing signals, Prisons often use face recognition signals, signals for voltage and current limits of electrostatic meters, and QR code swiping signals for scenic spots.
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