In our daily life, we can often see the use of intelligent swing gates, such as office buildings, schools, factories, customs, scenic spots, pavilions, supermarkets, government agencies and other related occasions are likely to use intelligent swing gates, which can play a good role in the safety norms of some important public places. Intelligent swing gate generally realizes the detection function of pedestrians and objects by means of photoelectric sensors. Its internal composition is actually not complicated, but if you want to add different functions, you need to rely on auxiliary modules to complete. Intelligent swing gate auxiliary modules generally include 6 common basic auxiliary modules. Next, I will give you a detailed introduction to the auxiliary modules of the intelligent swing gate.

Common pedestrian access gate auxiliary modules include LED indication module, counting module, alarm module, permission input module, voice prompt module, and last but not least, pedestrian detection module.

1. Gate pedestrian detection module: used to identify the pedestrian passage gate passage status, determine whether the pedestrian is legal passage, and can determine whether the pedestrian is in the blocking body movement range, in order to protect the personal safety of pedestrians. The performance of the detection module is very critical and affects the effectiveness and safety of the gate. It is mainly determined by two factors: hardware sensor and software recognition algorithm. Sensors generally use infrared photoelectric switches or infrared light curtains.
The pedestrian detection module needs to rely on infrared photoelectric sensors to achieve the detection function. It may not be clear what exactly is an infrared photoelectric sensor? How exactly does such a small product achieve pedestrian detection? I only need to briefly introduce its working principle, I believe you will be able to quickly understand. Photoelectric sensor is a small electronic device, photoelectric sensor is generally composed of three parts: light source, optical path and photoelectric element. The principle of photoelectric sensor is a sensor that uses a photoelectric element as a detection element. It first converts the measured change into a change in the light signal, and then further converts the light signal into an electrical signal with the help of the photoelectric element. It is mainly a sensor that uses various properties of light to detect the presence or absence of objects and changes in surface state, etc. Photoelectric sensors are widely used in industrial automation devices and warehouse logistics automation because of their non-contact, fast response and reliable performance. Photoelectric sensors are available in different housing styles, sizes and different operating modes. There are three main types of photoelectric sensors, namely, the through beam photoelectric sensor, the reflective photoelectric sensor and the diffuse reflective photoelectric sensor. To ensure the accuracy of the detection on the pedestrian gate, it is usually chosen to install the opposite type photoelectric sensor to achieve the pedestrian detection on the gate.

2. LED indication module of the gate: generally composed of LED dot matrix or LED display, used to indicate the passage status and direction of the pedestrian passage gate, some also contain text or patterns and other hint information and welcome information, etc.
3. Pedestrian access gate counting module: used to record the number of people passing, can be displayed through the LED digital tube or display. It can clear the zero and set the upper limit of the count.
4. Gate alarm module: The pedestrian access gate will trigger an alarm under various non-normal use conditions to alert or warn pedestrians, managers and maintainers. These conditions include illegal passage, gate abnormalities, power-on self-test, etc. Alarm methods include beeping, lights, voice, etc. (can be used in combination). Usually the alarm signal is triggered by the need for photoelectric sensor detection to determine abnormal behavior. High-quality channel gates in order to determine these abnormal behavior, usually use photoelectric sensors set up four induction areas. They are the starting induction detection area, security anti-pinch detection area, channel tracking detection area and low area location Safe detection area. Through the photoelectric sensor of different induction areas to determine the abnormal prohibited behavior and thus trigger the alarm device of the pedestrian access gate.
 

5. gate authority input module: pedestrians in the passage of the channel gate before the gate needs to let the gate "know" whether they have the legal permission to pass, that is, "input" permission for the gate to judge whether it can be released. There are a variety of input methods, such as non-contact IC card swipe card, biometric identification, enter the password, coins, etc., simple direct button access. The module is generally combined with access control system or ticketing system. In the occasion of free passage is no need for this module.
 

6. Voice prompt module: The voice prompt here is different from the voice alarm in the previous alarm module, mainly used to assist in prompting pedestrian-related information, such as prompting the type of pass tickets, welcome information, etc.
7. Recognition algorithm module: recognition algorithm is also very important, different pedestrian height, step distance, speed varies, carrying luggage size and location are also varied, but also take into account the continuous passage of multiple people before and after the spacing (anti tailgating), some occasions also consider the case of bicycle passage. High-end gate manufacturers generally establish corresponding mathematical models based on a large amount of experimental data and develop their own recognition algorithms, which can effectively identify common passage targets such as pedestrians, luggage and bicycles.
 

We hope the above information can help you understand more about the auxiliary module functions of pedestrian gates. If you want to know more about the product applications of infrared photoelectric sensors, you can also contact us by email. G-TEK has 20 years of experience in the infrared photoelectric sensor industry and insists on providing the most suitable and reliable photoelectric sensor solutions for our customers.