Channel gate full knowledge analysis
2020-01-02 12:06:52
With the progress of the times, safety gates are no longer limited to the use of ticket inspections at airports and subways, but are more frequently used in high-end office buildings, libraries, theaters, factories, convention centers, stadiums, and tourist attractions. A fast, smooth and efficient dual-controllable channel with a competitive, high-quality, safe traffic control system. The efficient door wing sliding system and brushed stainless steel surface material create a beautiful appearance that satisfies the practical and aesthetic needs of most interior architectural designs. The unique design makes it suitable for a variety of channel monitoring environments, allowing single-channel and multi-channel installations to work with most access control systems.
First, there are many types of channel gates in the classification channel, which can be divided into:
Retractable speed gate (wing gate), which is characterized by its fast, smooth single or two-way control access;
Swing gate, it is a kind of pedestrian access control equipment with high safety protection level;
Optics gates are mainly used for monitoring and access control equipment designed to address population flow and identity cards;
Three-roll gates, which are specifically designed to address access control and population flow, limit line-level access control devices;
The revolving door is mainly a two-way fast-track control device designed for high-level security requirements, and can be used for channel management under unsupervised supervision.
Swing gates are mainly limited-row access control devices designed for large spaces called passages.
Second, the channel gate general functional features 1, anti-trailing function: the channel in the infrared light zone detection zone can be used to adjust the switch state according to customer accuracy requirements, to adapt to different needs of the application of the light band to avoid the point of infrared detectors are easily contaminated, The shortcomings that affect the reliability of judgment can effectively determine the trailing person of an unread card. When the system determines that a tail occurs, the system will respond based on the location of the active cardholder returned by the infrared detector. After the door opening signal is issued, there are still some abnormal use that will trigger the alarm system.
2. Irregular usage: (1) When the door is closed, the reversed pedestrian enters the pedestrian after the authorized door-opening signal is sent out. Before passing the first safe photoelectric detection zone, if the reverse detection zone detects that someone enters, When the person does not leave, the buzzer will always give an alarm and the door will remain closed. The “aging†function does not calculate the time interval. (2) Reverse entry when the door is opened. After the door is opened, if an unauthorized pedestrian enters the door detection area in the reverse direction, the door is closed immediately. As long as the first protection detection belt detects the presence of someone, “aging†The function does not calculate the time at this time. When the person leaves the second detection zone, the door resumes normal work. (3) When the pedestrian left, the reversed intruder passed the second security detection zone. Before the door returned to the basic state, the second security detection zone again detected that there was no entry, and the alarm system issued an alarm. However, as long as someone is still detected in the protection zone, the door will not close. (4) The tail body detects the pedestrian from the first detector to the last detector that left the first security detection zone. The time gap is about 0.25 seconds. After the pedestrian leaves the first security detection zone, the reader signals. In the absence of an open door, a pedestrian (trailer) was detected in the first detection area. The alarm sounded and the door remained open. (5) After the normal trailing pedestrian leaves the protection detection area, the first security detection area detects that an unauthorized person has entered and the door is closed immediately. The alarm sounds.
Third, the channel gate purchase points The main difference between the pedestrian channel products in addition to the different ways of the door movement, the different grades of the product in the material process, motor drive and control system differences are relatively large, product selection needs to consider many factors.
1. Personnel safety: High-security personnel traffic protection is mainly to understand the mechanisms of the pedestrian passage products in the trajectory and behavior identification of personnel, the anti-pinch mechanism of illegally entered personnel, and the emergency response processing in emergency situations. These aspects are also The basis for guaranteeing the high security of pedestrian access products.
Third, the channel gate purchase points The pedestrian channel products in the channel inside a different number of locations to set a number of radio detection points, when the person passes, the limb will cover the detection point, a number of detection points formed on the movement through the person's track and behavior Recognition, pedestrian passage through the track-based logic detection algorithm running in the central controller based on high-performance arm9 technology to achieve high-efficiency logic judgments, driving the response of the human walkway door wing, high-end pedestrian channel products generally do not use the traditional point Infrared radiation detection method, but using led high-density matrix infrared detection light curtain, to determine the location area, status, traffic direction and authorization verification effectiveness of pedestrians in the channel, to calculate and analyze, to make The corresponding judgment. 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: The high-level security protection level is mainly to understand the detection, prevention, and alarm handling mechanisms of the pedestrian channel products against illegal entry personnel and to prevent the occurrence of people's trailing phenomenon. 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 legal authorization. After the authorized person has passed the channel, he has 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 an audible alarm and indicator light alarm. When the 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. Enter, because in designing, we consider the safety of the person, if the door leaf closes and will hurt people, so the door leaf will not be closed at this moment, but the channel equipment will have 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 is mainly to understand the people's walkway product door unit components of the motor technology, fault-free operation time, personnel per unit time pass rate, the system maintainability and so on.
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 web-based remote channel monitoring and management system can flexibly manage and monitor the pedestrian lanes at any time, anywhere, regardless of the physical location.
First, there are many types of channel gates in the classification channel, which can be divided into:
Retractable speed gate (wing gate), which is characterized by its fast, smooth single or two-way control access;
Swing gate, it is a kind of pedestrian access control equipment with high safety protection level;
Optics gates are mainly used for monitoring and access control equipment designed to address population flow and identity cards;
Three-roll gates, which are specifically designed to address access control and population flow, limit line-level access control devices;
The revolving door is mainly a two-way fast-track control device designed for high-level security requirements, and can be used for channel management under unsupervised supervision.
Swing gates are mainly limited-row access control devices designed for large spaces called passages.
Second, the channel gate general functional features 1, anti-trailing function: the channel in the infrared light zone detection zone can be used to adjust the switch state according to customer accuracy requirements, to adapt to different needs of the application of the light band to avoid the point of infrared detectors are easily contaminated, The shortcomings that affect the reliability of judgment can effectively determine the trailing person of an unread card. When the system determines that a tail occurs, the system will respond based on the location of the active cardholder returned by the infrared detector. After the door opening signal is issued, there are still some abnormal use that will trigger the alarm system.
2. Irregular usage: (1) When the door is closed, the reversed pedestrian enters the pedestrian after the authorized door-opening signal is sent out. Before passing the first safe photoelectric detection zone, if the reverse detection zone detects that someone enters, When the person does not leave, the buzzer will always give an alarm and the door will remain closed. The “aging†function does not calculate the time interval. (2) Reverse entry when the door is opened. After the door is opened, if an unauthorized pedestrian enters the door detection area in the reverse direction, the door is closed immediately. As long as the first protection detection belt detects the presence of someone, “aging†The function does not calculate the time at this time. When the person leaves the second detection zone, the door resumes normal work. (3) When the pedestrian left, the reversed intruder passed the second security detection zone. Before the door returned to the basic state, the second security detection zone again detected that there was no entry, and the alarm system issued an alarm. However, as long as someone is still detected in the protection zone, the door will not close. (4) The tail body detects the pedestrian from the first detector to the last detector that left the first security detection zone. The time gap is about 0.25 seconds. After the pedestrian leaves the first security detection zone, the reader signals. In the absence of an open door, a pedestrian (trailer) was detected in the first detection area. The alarm sounded and the door remained open. (5) After the normal trailing pedestrian leaves the protection detection area, the first security detection area detects that an unauthorized person has entered and the door is closed immediately. The alarm sounds.
Third, the channel gate purchase points The main difference between the pedestrian channel products in addition to the different ways of the door movement, the different grades of the product in the material process, motor drive and control system differences are relatively large, product selection needs to consider many factors.
1. Personnel safety: High-security personnel traffic protection is mainly to understand the mechanisms of the pedestrian passage products in the trajectory and behavior identification of personnel, the anti-pinch mechanism of illegally entered personnel, and the emergency response processing in emergency situations. These aspects are also The basis for guaranteeing the high security of pedestrian access products.
Third, the channel gate purchase points The pedestrian channel products in the channel inside a different number of locations to set a number of radio detection points, when the person passes, the limb will cover the detection point, a number of detection points formed on the movement through the person's track and behavior Recognition, pedestrian passage through the track-based logic detection algorithm running in the central controller based on high-performance arm9 technology to achieve high-efficiency logic judgments, driving the response of the human walkway door wing, high-end pedestrian channel products generally do not use the traditional point Infrared radiation detection method, but using led high-density matrix infrared detection light curtain, to determine the location area, status, traffic direction and authorization verification effectiveness of pedestrians in the channel, to calculate and analyze, to make The corresponding judgment. 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: The high-level security protection level is mainly to understand the detection, prevention, and alarm handling mechanisms of the pedestrian channel products against illegal entry personnel and to prevent the occurrence of people's trailing phenomenon. 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 legal authorization. After the authorized person has passed the channel, he has 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 an audible alarm and indicator light alarm. When the 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. Enter, because in designing, we consider the safety of the person, if the door leaf closes and will hurt people, so the door leaf will not be closed at this moment, but the channel equipment will have 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 is mainly to understand the people's walkway product door unit components of the motor technology, fault-free operation time, personnel per unit time pass rate, the system maintainability and so on.
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 web-based remote channel monitoring and management system can flexibly manage and monitor the pedestrian lanes at any time, anywhere, regardless of the physical location.
The application of Galvanized Malleable Iron Bolt Type Strain Clamp is suitable for overhead transmission lines and substations.
Material:
1. Body and keeper: malleable iron ( ductile iron )
2. Cotter-pin: stainless steel
3. Other parts: hot-dip galvanized steel.
As the bolt type Strain Clamp is used to AAC and ACSR, the conductor may be wound by aluminium tape or preformed armour rods for protecting.
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