With the development of society, there are more and more cars in cities. The places where vehicles are centrally stored and managed are requested by humans on the order of vehicle entry and exit, the safety of vehicle storage, and the paid nature of vehicle storage management. As a result, intelligent parking lot system products came into being, playing an increasingly important role in modern parking lot management. The full name of the parking lot system is the intelligent parking lot management system, which is usually called the parking lot system or the intelligent parking lot. Handling common problems of the intelligent parking lot system: 　　 press into the induction zone, the call button and press the ticket button lights are not bright, and there is no voice prompt 1. Reflect whether the single-chip microcomputer is in the task; 　　2, whether the sensor can sense; 　　3, reflect on the light lotus Can there be results; 　　4. Can there be results in the ticket light connection? The recorded license plate cannot be recognized. 1. The difficulty in the location of the license plate area when the image is not clear is mainly due to the collected images. Due to the diversity of the collected license plate images, and the impact of many factors when the images are collected, such as rainy weather and heavy weather. Fog, light, etc., make the image quality of some license plates show different levels of difference.　　This kind of situation usually only needs to recognize the consequences when the image is clearly focused to achieve a more satisfactory effect. Then this has certain requirements for the light-sensitive parts of the parking lot system. The video camera must also be improved. Check if the video setting is not normal (the setting is normal), the display resolution and the color desktop size are adjusted.　　2, the license plate is damaged or stained 　　In the course of practical use in roads and cities, it is difficult to ensure that the license plates touched are not stained. After a few years of use, the license plate will inevitably show signs of purification and wear.　　 Regarding this situation, many smart parking lot systems have gradually dealt with such results, but if it is too serious, it will have to rely on manual labor. After the license plate is recognized, the gate does not open. 1. Check whether the gate opening terminal can be connected firmly; 　　 2. Check whether the gate opening terminal has a switch signal input. If not, the gate control relay is broken. Change the control board; 3. If the gate still cannot be opened, check whether the barrier will crash. The LED on the display screen does not display 　　1, check whether the LED power supply is normal; 　　2, check whether the LED chip is normal. There is no voice prompt 　　1, introspection voice chip; 　 　2, introspection potentiometer.　　The gate moves up and down or often turns the head 　　1, introspect the limit switch; 　　2, introspect the CPU; 　　3, introspect the limit switch; 　　4, introspect the power-off switch.