Tripod turnstile gates have been widely used in the field of public transportation, especially in stations, docks, airports and other places play an important role. In practical applications, the tripod turnstile gate is mainly used to prevent personnel from straying or escaping.In the gate, installed a variety of sensors, the use of sensors to collect relevant information, after processing to send instructions to the control system to control the gate operation. This control method is more accurate, reliable and safe than the traditional mechanical control method.

With the diversification of tripod turnstile gate application scenarios, its functions are also constantly enriched, and the control mode is constantly updated. For the three roller gate, its key component is the gate plate, and its performance directly affects the performance of the whole system. The performance of the gate plate mainly depends on its material and processing technology.And the performance of the gate mainly depends on its material and processing technology.Among them, the sensor is one of the most important indicators of the performance of the gate.

The tripod turnstile gate is composed of a motor, a decelerating mechanism, a transmission mechanism and a control system. The whole system is accessible by rotating rollers, which can move in both vertical and horizontal directions. When the personnel pass through, the gate lever is raised upward to make the passage pass; When a person passes through, the gate lever is lowered to allow passage.

The role of sensor in tripod turnstile gate

The sensor is the core component of the automatic control system, which is used to detect the motion state and transmit the detection results to the controller. In the tripod turnstile gate system, the role of the sensor mainly has the following points:
1, the sensor can detect the motion state of the gate rod, according to the rotation speed of the motor and the motion state of the gate rod to determine the speed of the motor.
2. After receiving the information transmitted by the sensor, the tripod turnstile gate controller detects and controls the gate rod.
3. In the tripod turnstile gate system, according to the different information transmitted by the sensor, it can also be divided into photoelectric switch sensors, displacement sensors, etc.
4. In the tripod turnstile gate system, when the gate rod can not move, the gate is locked, only when the gate rod can move, the gate can be opened. Therefore, after receiving the information transmitted by the sensor, the tripod turnstile gate controller determines the speed of the motor according to its different output signals.

Installation of proximity sensors in tripod turnstile gates
The proximity sensor in the tripod turnstile gate is a highly sensitive sensor that is mainly used to detect metallic substances and give an output signal. The proximity sensor mainly plays a limiting role in the tripod turnstile gate. The movement of the three-roller gate is a metal disk with three recessed parts, and the proximity sensor is installed on one side of the movement. When pedestrians normally pass through the three roller gate, the gate lever outward movement drives the movement to rotate, at this time you can detect the position of the movement to determine the state of the gate, so as to control the switching state of the gate. A person through the three roller gate will drive the movement to rotate a week, the proximity sensor detects the movement will output a locking signal, waiting for the next door signal appears before the gate will work normally. This can effectively prevent the phenomenon of missing detection caused by pedestrian following.

At the same time, in order to prevent the mechanical limit switch from being damaged by external factors, two limit switches are generally used in parallel. When the power is off, the first limit switch action makes the gate rod stuck on the track, and the second limit switch action makes the gate rod turn clockwise at a certain Angle to release the stuck on the track. This design can effectively prevent mechanical limit switch damage caused by external factors.

Sensor Application solutions:

IF17 Inductive Proximity Sensor Product Features:
1.Provide two kinds of detecting distance: 5mm,7mm.
2. Exclusive anti-clogging integrated circuit.
3. Excellent product cost performance.
4. With reverse polarity protection, over-current protection, over-voltage protection, product quality is guaranteed.
5. Protection grade IP67, can still maintain normal operation in bad weather outdoors.

IM12 miniature limit proximity sensor Product Features:
1.Provide 5mm,7mm two kinds of detection distance.
2.Delay at power-up, guard against false pulse.
3. Excellent cost performance, can be used instead of mini switch and limit switch.
4. Reverse polarity protection, over-current protection, over-voltage protection, product quality is guaranteed.
5. Protection grade IP67, can still maintain stable performance in outdoor bad weather.

I hope the above information can help you choose the right safety sensor protection products for your tripod turnstile gate. If you are still not sure which infrared photoelectric sensor to choose, you can also contact us by email. G-TEK has the most professional technical service team and sales service team to provide you with the most professional sensor product solutions.