As the role of access control systems in security is growing, the market demand is gradually increasing. We believe that in the development of the next few years, there will be more intelligent identification technology, alarm technology, and shortcut operation in the gate access system of the access control system that will be applied to the access control system. Access control gate suppliers will cooperate with major security developers, software developers, security companies, and property companies, etc., to create more diverse and innovative cooperation. Under the stimulation of different application requirements from these different partners, access control gates The system also transforms 蜕 into a smarter new life.
Access control channel product selection should be cautious
The main difference between walkway products is that, besides the difference in the way of moving the door leaf, different grades of products have more differences in material technology, motor drive and control systems, and product selection needs to consider many factors.
1, personnel safety: high security personnel protection
The main purpose is to understand the mechanisms of pedestrian channel products in the detection of human movement trajectories and behaviors, the anti-pinch mechanism of illegally entered personnel, and the emergency response handling in emergency situations. These aspects are also the basis for guaranteeing the high safety of pedestrian channel products.
Pedestrian channel products have a certain number of radio detection points at different positions inside the channel. When a person passes through, the limbs will cover the detection points. Multiple detection points form an effective recognition of the movement trajectory and behavior of the passing person. The pedestrian passage is based on high The tracked traffic logic detection algorithm running in the central controller of the performance ARM9 technology realizes high-efficiency logic judgment and drives the response action of the pedestrian passage door wing. The high-end pedestrian passage product generally does not adopt the traditional point-to-point infrared radiation detection method. Instead, LED high-density matrix infrared detection light curtains are used to determine the location, status, traffic direction and authorization verification effectiveness of pedestrians in the channel, and calculations and analysis are performed to make corresponding judgments. Follow-up traffic detection methods to protect pedestrian safety. The greater the number of sensor points, the better the security and functionality, but at the same time the higher the complexity of the logic algorithm. In similar products, high-end brand manufacturers use up to 16 pairs, and some even up to 20 pairs, the minimum monitoring distance can reach 12 centimeters, while most of the domestic low-end manufacturers use mostly in about 10 pairs, including Only 4 pairs of products are used.
The product's anti-pinch protection function is realized through the door unit and the traffic detection system. During the pedestrian's access, any one of the protection sensors is triggered and the channel will be in an open state. When the access door is closed and the object is blocked, the door leaf will immediately become free, thus preventing the pinching of the passing personnel and ensuring the personal safety of our pedestrians.
Emergency handling in the event of an emergency. Pedestrian equipment should be set aside for fire signals. When a fire signal warning or power failure is received, the doors will be automatically unlocked and become free, forming a barrier-free emergency evacuation crowd. No accidental casualties will occur. This emergency function can also be used to set and switch the channel operating status through the remote channel monitoring and management system.
2, security and security: high level of security protection level
The main purpose is to understand the mechanism for the detection, prevention, and alarm handling of illegally entered personnel for pedestrian passage products to prevent the occurrence of tailgating. The trailing detection function includes two detection methods, one is the trailing entry detection and the other is the reverse entrance detection.
The trailing behavior in the trailing detection function refers to the deception that the person attempts to pass without being legally authorized. When authorized personnel pass through the channel, they have left the safe area of ​​the channel. At this time, the access door leaf will automatically close, but at the same time There are unauthorised personnel attempting to follow through the passageway, and the door leaf will block pedestrians from passing through. At this time, the channel will issue audible alarms and indicator lights; when authorized personnel pass through the channel, they have not left the safe area of ​​the channel. At this time, the trailing person tries to trail. Into the design, we consider the safety of the person. If the door leaf is closed, it will hurt people, so the door leaf will not be closed at this time, but the channel equipment will have an audible alarm and indicator light alarm to prompt us The abnormal situation occurred in the staff, which reflected the security protection capabilities of the pedestrian passage and the ability to protect personal safety.
3, performance and safety: reliable and lasting operating capability
The main purpose is to understand the motor technology of the doorway component of the walkway product, the trouble-free running time, the passing rate of the personnel unit time, and the maintainability of the system.
In terms of guaranteeing reliability, it is an important door unit system. The door unit drive motor of the high-end walkway product adopts brushless DC servo drive technology. At present, servo drive technology is the most advanced motor technology. The vast majority of products in the market use ordinary DC motors. The advantage of using brushless servo motors is that they have fast operation speed, no mechanical losses, accurate positioning, and stable operation. The operation time of the door unit using the brushless DC servo drive technology is less than 0.8 seconds, which guarantees a high pass rate of 60 people per minute. The high-end walkway products generally have a trouble-free running time of no less than 3 million times.
In terms of maintainability of the system, high-end walkway products are generally equipped with a remote channel monitoring and management system. Through the TCP/IP network, the real-time monitoring and operation management of the running status of the pedestrian walkway can be realized remotely. The mid-to-low-end products are usually switched between manual mode by using the jumper on the control board inside the walkway, or by physically controlling the switch panel. In contrast, the remote channel monitoring and management system based on the WEB mode can be managed and monitored flexibly on the pedestrian path at anytime and anywhere without being limited by the physical location.
Access control channel product selection should be cautious
The main difference between walkway products is that, besides the difference in the way of moving the door leaf, different grades of products have more differences in material technology, motor drive and control systems, and product selection needs to consider many factors.
1, personnel safety: high security personnel protection
The main purpose is to understand the mechanisms of pedestrian channel products in the detection of human movement trajectories and behaviors, the anti-pinch mechanism of illegally entered personnel, and the emergency response handling in emergency situations. These aspects are also the basis for guaranteeing the high safety of pedestrian channel products.
Pedestrian channel products have a certain number of radio detection points at different positions inside the channel. When a person passes through, the limbs will cover the detection points. Multiple detection points form an effective recognition of the movement trajectory and behavior of the passing person. The pedestrian passage is based on high The tracked traffic logic detection algorithm running in the central controller of the performance ARM9 technology realizes high-efficiency logic judgment and drives the response action of the pedestrian passage door wing. The high-end pedestrian passage product generally does not adopt the traditional point-to-point infrared radiation detection method. Instead, LED high-density matrix infrared detection light curtains are used to determine the location, status, traffic direction and authorization verification effectiveness of pedestrians in the channel, and calculations and analysis are performed to make corresponding judgments. Follow-up traffic detection methods to protect pedestrian safety. The greater the number of sensor points, the better the security and functionality, but at the same time the higher the complexity of the logic algorithm. In similar products, high-end brand manufacturers use up to 16 pairs, and some even up to 20 pairs, the minimum monitoring distance can reach 12 centimeters, while most of the domestic low-end manufacturers use mostly in about 10 pairs, including Only 4 pairs of products are used.
The product's anti-pinch protection function is realized through the door unit and the traffic detection system. During the pedestrian's access, any one of the protection sensors is triggered and the channel will be in an open state. When the access door is closed and the object is blocked, the door leaf will immediately become free, thus preventing the pinching of the passing personnel and ensuring the personal safety of our pedestrians.
Emergency handling in the event of an emergency. Pedestrian equipment should be set aside for fire signals. When a fire signal warning or power failure is received, the doors will be automatically unlocked and become free, forming a barrier-free emergency evacuation crowd. No accidental casualties will occur. This emergency function can also be used to set and switch the channel operating status through the remote channel monitoring and management system.
2, security and security: high level of security protection level
The main purpose is to understand the mechanism for the detection, prevention, and alarm handling of illegally entered personnel for pedestrian passage products to prevent the occurrence of tailgating. The trailing detection function includes two detection methods, one is the trailing entry detection and the other is the reverse entrance detection.
The trailing behavior in the trailing detection function refers to the deception that the person attempts to pass without being legally authorized. When authorized personnel pass through the channel, they have left the safe area of ​​the channel. At this time, the access door leaf will automatically close, but at the same time There are unauthorised personnel attempting to follow through the passageway, and the door leaf will block pedestrians from passing through. At this time, the channel will issue audible alarms and indicator lights; when authorized personnel pass through the channel, they have not left the safe area of ​​the channel. At this time, the trailing person tries to trail. Into the design, we consider the safety of the person. If the door leaf is closed, it will hurt people, so the door leaf will not be closed at this time, but the channel equipment will have an audible alarm and indicator light alarm to prompt us The abnormal situation occurred in the staff, which reflected the security protection capabilities of the pedestrian passage and the ability to protect personal safety.
3, performance and safety: reliable and lasting operating capability
The main purpose is to understand the motor technology of the doorway component of the walkway product, the trouble-free running time, the passing rate of the personnel unit time, and the maintainability of the system.
In terms of guaranteeing reliability, it is an important door unit system. The door unit drive motor of the high-end walkway product adopts brushless DC servo drive technology. At present, servo drive technology is the most advanced motor technology. The vast majority of products in the market use ordinary DC motors. The advantage of using brushless servo motors is that they have fast operation speed, no mechanical losses, accurate positioning, and stable operation. The operation time of the door unit using the brushless DC servo drive technology is less than 0.8 seconds, which guarantees a high pass rate of 60 people per minute. The high-end walkway products generally have a trouble-free running time of no less than 3 million times.
In terms of maintainability of the system, high-end walkway products are generally equipped with a remote channel monitoring and management system. Through the TCP/IP network, the real-time monitoring and operation management of the running status of the pedestrian walkway can be realized remotely. The mid-to-low-end products are usually switched between manual mode by using the jumper on the control board inside the walkway, or by physically controlling the switch panel. In contrast, the remote channel monitoring and management system based on the WEB mode can be managed and monitored flexibly on the pedestrian path at anytime and anywhere without being limited by the physical location.
These raw materials are for pharma, mainly for human pharma, such as melbine (DMBG)
It is basic material for many fields, such as pharma, chemical, dying, washing industry, and manufacture industry. Some are powder, some granule, some flake, some crystalline. As below pictures:
It is identified by purity and granule/block size, purity is the main identified method. It is used in different products as per its size.
Raw Material Of Pharma
Raw Material Of Pharma,Pharma Raw Material,Pharmaceutical Raw Material,Pharmaceutical Raw Materials
NINGXIA PURU CHEMICAL CO., LTD , https://www.nxpuruchem.com