Check out the technical articles of 2017.

In terms of the big environment, the number of car ownership in China has been increasing, and parking has just become a necessity. The shortage of parking spaces, such as low demand, low utilization rate, and poor information, further aggravated the parking conflict. As early as 2015, the National Development and Reform Commission and the Ministry of Land and Resources and other seven ministries and commissions jointly issued the "Guiding Opinions on Strengthening the Construction of Urban Parking Facilities", demanding more reform efforts and policy innovations, and citing intelligent means to solve urban parking problems. Realizing smart parking, do you know which core technologies are there?

License plate recognition technology

At present, the number of car ownership in the country has exceeded 170 million, and the number of parking spaces is less than 68 million. Resolving parking difficulties and reducing the time spent in the parking process is a solution, and the advent of the license plate recognition management system plays a key role in reducing the time spent in the parking process.

License plate recognition is an automatic pattern recognition technology that uses the dynamic video or static image of the vehicle to collect the license plate number and license plate color. The core of the technology includes license plate location algorithm, license plate character segmentation algorithm and optical character recognition algorithm. A complete license plate recognition system should include vehicle detection, image acquisition, and license plate recognition. The image acquisition unit is triggered when the vehicle detection portion detects that the vehicle arrives, and the current video image is acquired. The license plate recognition unit processes the image, locates the license plate position, divides the characters in the license plate for identification, and finally forms the license plate number output.

The parking lot can realize the automatic timing charging of the vehicle by installing the license plate recognition device at the exit port, recording the license plate number and the entry and exit time of the vehicle, and combining with the control of the automatic door and the railing machine.

Parking guidance technology

Parking guidance technology is a very important part of intelligent parking development. It can help car owners quickly find parking spaces, avoid blind driving, eliminate car owners' troubles, effectively improve traffic utilization and ease vehicle congestion. Its principle is to detect the vehicle through the parking space detector, locate the occupied information of the parking space to a specific specific parking space, release the remaining parking space information of the parking lot in real time, display the occupancy information of a single parking space, and cooperate with the direction indication to guide The vehicle is parked quickly. Nowadays, the mainstream parking spaces in the market are guided by intelligent parking spaces: ultrasound and video.

1. Ultrasonic parking space guidance system: The ultrasonic detector is installed above the parking space to detect whether there is a parking space under the parking space by using the characteristics of ultrasonic reflection, so as to guide the vehicle through the system. The ultrasonic guidance system is suitable for parking lots with large traffic volume and tight parking space. It can help the owner to quickly and freely know the free parking space information in the field, so as to quickly and efficiently stop.

2, video parking space guidance system: the camera is installed above the parking space, through the video to analyze whether there is a parking space below the parking space, so that the vehicle is guided through the system. The video guidance and car search system is suitable for large commercial plazas and airports with large traffic volume and relatively chaotic management.

Reverse car search technology

In large parking lots such as shopping malls and shopping malls, when returning to the parking lot, the owner often loses his or her own vehicle because of the large parking space, similar environment and signs, and the direction is not easy to distinguish. . The reverse car picking system detects the vehicle through the video parking detector. The video is transmitted to the identification terminal via the switch, and the information such as the license plate and the parking space is identified, transmitted to the data server via Ethernet, and finally shared to each. On the inquiry terminal, it is only necessary to input the license plate number or other related information on the inquiry terminal to help the user find the parking area of ​​the vehicle as soon as possible.

The system also incorporates the parking space guidance function, which can automatically guide the vehicle to quickly enter the empty parking space, reduce the cost of management personnel, eliminate the trouble of finding the parking space, improve the customer satisfaction with the parking lot and even the property company to which it belongs; accelerate the vehicle turnover of the parking lot Improve the utilization rate and economic benefits of parking lots; improve the management level of parking lots.

Garage technology

With the increase in land prices and the imbalance between supply and demand of cars and parking spaces, the three-dimensional parking garage is expected to become one of the key development directions of smart parking. For example, the fully automatic mechanical parking garage has the unique advantages of easy stop, safety and aesthetics, and is especially suitable for use in prosperous commercial centers and hospitals with large traffic flow and large traffic volume. The core of the fully automatic three-dimensional garage is to use the computer, sensor, camera and handling equipment system to access the car, which can realize closed structure, high parking efficiency and unattended management. At present, the fully automatic mechanical parking garage is popular in the world. Among them, the fully automatic mechanical three-dimensional garage in Europe and the United States is widely used. Japan pays more attention to the development of intensive auto-stereo parking garages with a wide variety and high technical level.

Equipment laying + mobile payment

The traditional parking lot payment is generally based on cash payment, and it is a manual charge. The manual charge is too much, and the property management personnel cannot know the charge situation from time to time. The statistical report is not timely, wastes manpower and material resources, and the cost is also high. In the "Internet +" parking environment, many parking lots have been upgraded and improved by laying smart equipment to guide the user to pay online. This saves parking time to a certain extent, and brings convenience to the parking lot management.

summary

Since the beginning of the “Thirteenth Five-Year Plan”, in order to comply with the trend of China's new smart city construction, domestic first- and second-tier cities have taken the lead in “study the road” in the field of smart transportation. Among them, "Internet + parking" and "smart parking" have the highest recognition and support rate in the public mind, and are regarded as the most effective means to solve urban static traffic problems. Many companies have started from the development of intelligent parking systems and efficient use of parking resources, and constantly break through a number of core technologies, making smart parking a reality.