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The resistance rebound device is composed of three parts, the pressure switch, the pressure tube and the anti-smashing rubber strip. The pressure tube is connected to the pressure switch and the anti-smashing rubber strip. When the brake lever falls, if the anti-smashing rubber strip encounters an obstacle and is subjected to a certain squeezing force, the anti-smashing rubber strip is deformed, and the pressure signal will be transmitted to the pressure through the pressure tube At the same time, the pressure switch transmits the signal to the gate lever switch through the sensor, and the gate lever will automatically lift up. When the obstacle is removed, the anti-smashing rubber strip will return to normal and the gate lever will be lowered again.
The modern parking lot advertising barrier system is a high-tech intelligent barrier product that puts people, cars and parking lots under the management of computer software. It is mainly composed of a control machine, a gate lever, and a software system, which integrates monitoring, detection, and license plate recognition. , Data statistics, gate control, payment printing, self-service and other functions in one. Advertising barriers need to control the entry and exit of people and vehicles, and the raising and lowering of the gate rod determines the passage and stop. At present, most advertising barriers in parking lots automatically recognize the vehicle and then lift the brake lever to release. After the vehicle passes, the brake lever is lowered. If the vehicle has not completely passed, the brake lever is dropped, which will inevitably cause damage to the vehicle. Therefore, the safety of the parking lot system is particularly important, and this mainly depends on the anti-smashing device of the barriers.
It is also called pressure anti-smashing. It is equipped with a resistance rebound device. If a person or car is encountered during the lowering of the advertising barrier of the parking lot, and the anti-smashing rubber strip at the bottom of the brake rod is subjected to squeezing resistance, the brake rod will be It gradually transforms from falling to rising to prevent people or cars from being smashed down further. In addition, the contact resistance can be adjusted according to needs.
The resistance rebound device is composed of three parts, the pressure switch, the pressure tube and the anti-smashing rubber strip. The pressure tube is connected to the pressure switch and the anti-smashing rubber strip. When the brake lever falls, if the anti-smashing rubber strip encounters an obstacle and is subjected to a certain squeezing force, the anti-smashing rubber strip is deformed, and the pressure signal will be transmitted to the pressure through the pressure tube At the same time, the pressure switch transmits the signal to the gate lever switch through the sensor, and the gate lever will automatically lift up. When the obstacle is removed, the anti-smashing rubber strip will return to normal and the gate lever will be lowered again.
low cost and wide application.
Affected by the sensitivity of the brake lever, sometimes the brake lever cannot be lifted in time, and appropriate contact resistance needs to be adjusted.
Place an infrared device at the entrance and exit of the advertising barrier of the parking lot. During the falling process of the gate, when a person or vehicle passes through the gate, the infrared device will be triggered. At this time, the gate will automatically rise and react relatively quickly to avoid being smashed. .
Both sides of the smart barrier gate are equipped with infrared radiation devices. When the barrier is lowered, if an obstacle enters, it will block the infrared rays. At this time, the barrier system will receive a signal and the barrier automatically lifts.
The judgment is more accurate and not affected by the sensitivity of the brake lever.
Infrared can not be focused due to vibration, and infrared radiation is small and not suitable for large entrance parking lots. In addition, it is easy to be interfered by rain and snow weather, anti-smashing technology is unstable, and the application range is small.
Overview: It means that there is a ground induction coil buried in the entrance of the advertising barrier of the parking lot. When a vehicle passes by, the induction signal of the coil is used to prevent the car from being smashed.
Usually two coils are buried at the barriers, one for release and one for anti-smashing. The release coil is buried in the position before the vehicle enters to sense the vehicle in advance. The barrier system will raise the brake lever to let the vehicle pass after receiving the signal; the anti-smashing coil is buried in the position of the brake lever to detect the vehicle under the brake lever. Keep the brake lever still to avoid hitting the body, and then lower the brake lever when the car has passed completely. Note that the two coils should be separated by at least 1.5 meters and not too close to avoid signal interference between the coils.
The anti-smashing technology is mature and widely used.
susceptible to strong electromagnetic interference.
Overview: Adopting digital intelligent anti-smashing technology for intelligent parking lot advertising barriers. The digital anti-smashing itself integrates detection and anti-smashing systems. It does not require other auxiliary equipment, and can monitor the operation of the brake lever and the passage of vehicles in real time. When the brake lever is blocked when it is falling, it is quickly lifted, so the anti-smashing technology is safe The sex is relatively high.
By continuously detecting the operating current of the brake lever, when a person or vehicle passes by, the current will exceed the set value, causing the motor to stop rotating and then rotate in the opposite direction. At this time, the brake lever will correspondingly stop falling and then rise to achieve the anti-smashing effect.
The anti-smashing technology is more advanced, and it is not interfered by the external environment.
higher cost of construction and smaller scope of application.
Radar anti-smashing is equivalent to the evolution of ground-sensing anti-smashing, that is, the coil device is turned into a radar device, and it is changed from underground to above ground. Compared with ground-sensing anti-smashing, radar anti-smashing can not only identify vehicles more accurately, but also identify people and non-motorized vehicles. It is also adaptable to the environment and is not easily interfered by external factors, which greatly reduces the error rate and failure rate. In addition, the radar anti-smashing device is more convenient to install and maintain than the ground-sensing anti-smashing device.
Similar to ground sensing anti-smashing, there are two radar devices, one for release and one anti-smashing. The release radar is installed on the license plate recognition chassis, and the anti-smashing radar is installed on the barrier chassis. When a vehicle enters, the release radar senses the license plate recognition system to shoot, and then controls the brake lever to raise; when the vehicle passes, the anti-smashing radar keeps the brake lever raised, and will not lower the brake lever until the vehicle passes completely.
The most advanced anti-smashing technology for advertising barriers in parking lots.
Disadvantages: As the radar anti-smashing technology is relatively advanced and not yet fully mature, the application needs to be popularized.
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