KR20080023178A - Automatic parking management system - Google Patents

Abstract

An automatic parking management system is provided to realize the parking management system which is automatically operated by improving vehicle number recognition capability for computerizing the parking management. A sensor unit(10) having a plurality of detection sensors calculates vehicle width data. A photographing device(11) performs vehicle number recognition. A controller(12) operates the photographing device, and provides electric power for rotating the photographing device according to the received control signal. A parking lot control PC(13) receives the vehicle width data from the sensor unit and recognizes entrance/exit of vehicle, and a vehicle model. And the PC generates the vehicle information, a control signal to be transmitted to the control unit, and the control signal for permitting the exit of calculated vehicle. A parking database(14) stores information about all vehicles based on the data transmitted from the PC. A crossing gate unit(15) controls entrance/exit according to the control signal. A parking fee collector(16) collects the parking fees according to the transmitted data from the parking database by using a traffic card, an RF tag, a credit card or cash.

Description

Automatic parking management system

The present invention relates to an automatic parking management system, and more particularly, to move and rotate a camera at a position and an angle suitable for photographing a license plate of a vehicle entering and leaving a parking lot and to photograph the front license plate at least three times, When the misrecognition occurs, it is related to the automatic parking management system which re-photographs the rear license plate to improve the recognition rate of the vehicle number and automates the entrance, management and settlement of the parking lot based on the vehicle number.

Looking at the conventional parking management system as follows.

According to Patent Publication No. 10-2002-0032475, a parking vehicle detecting unit for detecting and imaging the parking vehicle 62; A first breaker (28) for intermittent entry of the vehicle (62); A parking manager 20 which controls the parking vehicle detecting unit and the first breaker 28 and determines a vehicle type of the parking vehicle 62 based on the image information captured by the parking vehicle detecting unit; A leaving vehicle detecting unit for detecting the leaving vehicle 64 and imaging the vehicle number; A second breaker (56) for controlling the discharging of the discharging vehicle (64); First display means (58) installed at the exit side to display the unpaid vehicle guidance text and the parking fee so that the vehicle driver can see when the unpaid vehicle is leaving; Second display means (60) installed in the vicinity of the first display means (58) to display a captured image when entering the vehicle so that a vehicle driver can see it when the uncommitted vehicle leaves; A leaving manager 50 for controlling the drawing-out vehicle detecting unit, the second breaker 56, the first display means 58, and the second display means 60; A vehicle number reader (30) which recognizes a vehicle number from the image information captured by the vehicle detector and transmits the vehicle number to the parking lot manager (50); Third display means (32) for displaying an unrecognized image so that an operator can manually input the vehicle number when the vehicle number reader (30) does not recognize the vehicle number from the captured image information; An unmanned fare calculator 70 for allowing a customer to directly input their vehicle number and vehicle image and select a payment method to settle the parking fee; Interfaced with the parking manager 20 and the parking manager 50, a DB for storing a vehicle number, a vehicle type, and a parking time of the parking vehicle 62 photographed by the parking vehicle detecting unit and the parking vehicle detecting unit is embedded. Disclosed is a parking fee payment device, comprising a DB server (15).

However, the conventional parking management system has the following problems.

Due to the movement of the vehicle entering the parking lot, considerable difficulty arises in recognizing the vehicle number, which causes the parking manager to manually enter the vehicle number by hand, since the unique number for managing the parked vehicle is not entered. Occupied.

In particular, since the vehicle number itself corresponds to a unique number, it is very difficult to computerize parking management unless it is necessarily entered.

The present invention for solving the above problems is not to shoot at a fixed position and a fixed angle when recognizing the vehicle number, to find the optimal shooting position to move or rotate to shoot, as well as the front license plate of the vehicle, The purpose of the present invention is to provide an automatic parking management system, which is configured to recognize the license plate, which greatly increases the recognition rate of the license plate, thereby automating the access, management and settlement of the parking lot based on the vehicle number.

The present invention for achieving the above object is made up of a plurality of detection sensors provided at regular intervals on both sides of the entrance, the sensing sensor unit for detecting the vehicle width data by measuring the distance x1, x2 from the sensor to the vehicle; Moving to the center line of the vehicle to perform at least three times when the vehicle is located in the distance range (A ~ B) suitable for photographing the front license plate and performing the license plate recognition using the best image to recognize the license plate Entrance vehicle photographing apparatus; An adjusting device for providing power to move and rotate the vehicle imaging apparatus according to the received control signal; When the vehicle width data is received from the sensor, the vehicle is recognized as being in or out of the vehicle, and the vehicle width data is compared with a preset reference value to determine a vehicle type, and a control signal for moving or rotating the vehicle imaging apparatus is generated. If the vehicle number is received from the entrance vehicle photographing device when entering the vehicle, it generates vehicle information including the model, image, and current time according to the vehicle number, and the parking time, parking fee, A parking lot control PC for generating information including a discount amount, a payment amount, a payment time, a payment means, and a control signal to issue a control signal for allowing the vehicle to be parked with the parking fee; Vehicle number, vehicle type, arrival time, entrance image, departure time, exit image, parking time, parking fee, discount amount, payment amount, payment time, A parking database for storing information including payment means; An entrance blocking unit for opening or closing an entrance in accordance with a control signal transmitted from the parking lot control PC; Based on the data transmitted from the parking database, the credit card, traffic card, RF tag, including a fare calculator that automatically calculates the parking fee to the payment method of the user of your choice.

In a preferred embodiment, the adjustment device is a drive motor for generating a rotational force, a driven roller that rotates in accordance with the rotational force of the drive motor, is inserted between the drive motor and the driven roller to fix the camera and the bracket of the vehicle imaging apparatus It includes a transfer belt.

In a preferred embodiment, the access vehicle recording apparatus is a second camera for photographing the rear license plate at least three times, a drive motor for generating a rotational force for moving the second camera to the left or right, the rotational force of the drive motor According to the rotation of the driven roller, the driving motor and the driven roller further includes a conveying belt for fixing the second camera and the bracket (bracket).

According to the preferred embodiment of the present embodiment described above, since the recognition rate for the vehicle number is greatly improved, it is possible to computerize the parking management without additional information input, and furthermore, there is an advantage of constructing a parking management system that is automatically operated. have.

In addition, since there is almost no stopping of the vehicle in the parking lot, the waiting time for parking or leaving the vehicle is very shortened, thereby saving both time and money for both the user and the parking lot.

Hereinafter, the automatic parking management system according to the present invention will be described in detail.

1 is a block diagram showing the configuration of the automatic parking management system according to the present invention, the automatic parking management system has a plurality of sensors are installed on both sides of the access road of the parking vehicle to periodically emit ultrasonic waves to the vehicle Detecting sensor unit 10 for calculating the vehicle width by measuring the distance of the vehicle, the entrance vehicle photographing device 11 for detecting the vehicle number by photographing the license plate of the vehicle installed in the access road of the parking vehicle to enter the parking lot, In accordance with the control signal, the entrance vehicle photographing device 11 is provided with an adjusting device 12 for moving the vehicle to the centerline of the vehicle and rotating it at an appropriate photographing angle.

In addition, the parking lot control PC 13 for controlling the detection sensor unit 10, the entrance and exit vehicle photographing device 11, the adjusting device 12, a parking DB (database; 14) for storing parking-related data, exit of the parking lot It consists of an exit blocker installed at the entrance of the parking lot and the entrance blocker is provided with an access blocker 15 for opening or blocking the entrance of the parking lot by raising or lowering the barrier (barrier).

In addition, online or on-line sales of a fare calculator 16, a commuter pass or a free pass for automatically calculating the parking fee according to the parking number according to the vehicle number by a desired payment method of credit card, transportation card, cash or RF tag It is configured to include a manual input unit 17 for receiving the vehicle number from the user to settle before parking.

On the other hand, it looks in detail the sensor and the vehicle photographing device that is operated when entering and exiting the parking lot.

Figure 2 is a perspective view showing a detailed configuration of the entrance vehicle photographing device in the automatic parking management system according to the present invention, the sensor 10a and the entrance installed at predetermined intervals on both sides of the road entrance or exit of the entrance and exit, At the top of the roadside at the exit B, an entrance vehicle photographing device 11 having an overpass shape is installed.

As shown in FIG. 2, first and second license plates 110 and 120 are attached to the front and rear centers of the vehicle 100, respectively, and an entrance vehicle photographing apparatus 11 for recognizing the first and second license plates. ) Has a camera device for photographing the first license plate 110 attached to the front and a camera device for photographing the second license plate 120 attached to the back.

That is, the entrance and exit vehicle photographing apparatus 11 is provided with two pillars 11a having a predetermined height, a first camera 11b installed at a height of the pillar 11a and capable of horizontally moving and vertically rotating, and a first camera 11b. ) A first conveyance belt (1c) for transporting the first bracket (11c) and the first camera (11b) fixed to the first bracket (11c) to the left or right using the first motor (M1) as a power source. 11f).

Similarly, it is comprised including the 2nd camera 11d, the 2nd bracket 11e, the 2nd motor M2, and the 2nd conveyance belt 11g.

The structure for vertically rotating the camera will be described in more detail by illustrating the first camera installed to photograph the front license plate.

3 is a side cross-sectional view for explaining a vertical rotation structure of the vehicle number photographing apparatus in the automatic parking management system according to the present invention. The third motor M3 having the first gear G1 behind the first camera 11b. ) Is installed, and a second gear (G2) corresponding to the first gear (G1) is formed on the rear surface of the first camera (11b), the first bracket (11c) is a first transfer belt (11f) ) Is fixed to the first bolt B1 and the first nut N1.

Accordingly, when the first motor M1 is driven, not only the first conveying belt 11f is rotated and the first camera 11b fixed to the first conveying belt 11f is moved left or right. When the third motor M3 is driven, the rotational force is transmitted through the first and second gears G1 and G2 that are engaged to rotate the first camera 11b at an angle suitable for photographing the first camera 11b.

On the other hand, as shown in FIG. 4, the driven roller D1 which rotates by the rotational force transmitted is provided in the opposite side to the 1st and 2nd motor M1 and M2.

Looking at the flow of photographing the vehicle number based on the above-described configuration.

When the vehicle enters the parking lot, the detection sensors 10a on both sides of the access road measure distances x1 and x2 from the detection sensors to the vehicle and calculate vehicle width data based on the distances. That is, since the width of the entry path is a known value, the vehicle width of the vehicle can be calculated by subtracting X1 and X2 from the width of the access road.

The sensor 10 transmits the calculated vehicle width data to the parking lot control PC 13.

The parking lot control PC 13 compares the vehicle width with a preset reference value to determine a vehicle type as a light vehicle, a small car, a medium car, and a large car, and moves the first camera 11b to a center line divided by the vehicle width by two. 12) to transmit the control signal. That is, since the license plate is located at the center of the vehicle, the license plate is moved to the center of the vehicle so that the first camera can be easily photographed. That is, the first camera is moved by x1 + (vehicle width / 2) meters (m) from the sensing sensor measuring x1.

For example, assuming that the width of the access road is 5m and the distances x1 and x2 measured by the sensor are 1.5m and 1.5m, the vehicle width is 5m (width of the entrance road)-1.5m (x1)-1.5m (x2) = 2m, and the center line = 2 (vehicle width) m / 2 = 1m, so the first camera moves 1.5m (x1 measured by the day sensor) + 1m = 2.5m from the one sensor.

Meanwhile, although the first camera 11b has moved to the centerline position of the vehicle, the distance between the license plate of the vehicle and the first camera should be adjusted. That is, in order to accurately photograph the license plate of the vehicle, which is the moving object of the first camera, the license plate of the vehicle should be positioned at an easy distance for identification.

Therefore, when the license plate of the vehicle is located between A and B, which is a range in which the license plate of the vehicle can be accurately photographed, the first camera 11b shoots. At this time, the first camera 11b shoots at least three times while adjusting the angle downward toward the vehicle number, and then lowers the possibility of misrecognition or unrecognition of the license plate by receiving the license plate as the image of the license plate most recognized. .

However, even in such a case, the license plate recognition may not be made in a sudden situation including bad weather, in this case, by using the second camera (11d) again photographing the rear license plate 120 installed in the rear of the vehicle, or misidentification of the license plate Attempt to block the possibility of manual operation due to recognition.

Even when re-shooting using the second camera, at least three shots are taken, and the license plate is recognized as being well recognized, thereby reducing the possibility of misrecognition or unrecognition of the license plate.

Here, the movement of the first camera and the second camera is made by the transfer belt, the rotation of the first camera and the second camera is made by a third motor, the first and second gear.

Look at the flow of automatic parking management based on the recognized vehicle number as described above.

An entrance breaker constituting the entrance and exit unit 15 is installed in front of the entrance of the parking lot so that the barrier of the entrance breaker rises and is accessible when the parking lot is in normal operation, and the barrier of the entrance breaker is closed when the parking lot is not in normal operation. Go down to prevent entry.

Here, an exit breaker constituting the entrance and exit unit 15 is installed at the front part of the exit of the parking lot, and when the approaching vehicle is a parked vehicle, the barrier is raised to facilitate rapid exit, and the approaching vehicle is not settled. In the case of parking vehicles, the barrier is lowered to prevent leaving.

On the other hand, the configuration as shown in Figure 2 for detecting the vehicle number is also installed at the exit of the parking lot, through which the parking lot control PC 13 to identify the vehicle leaving and calculate the parking time, parking fee.

The fare calculator 16 receives the data about the arrival time, the departure time, the parking time, and the parking fee from the parking lot control PC 13 to settle the payment means desired by the user among credit cards, transportation cards, RF tags, and cash. .

When the settlement is completed in the fare settlement device 16, the settlement completion information is transmitted to the parking lot control PC 13, and the parking lot control PC 13, which has received the settlement completion information, leaves the exit blocker of the access blocking unit 15. The permit signal is sent and the exit breaker immediately exits by opening the barrier.

However, since the vehicle information holding the commuter pass or the free use pass is input to the manual input device 17 in advance and transferred to the parking lot control PC 13, the moment when the vehicle information is identified as the exit vehicle without a separate settlement process, the exit breaker Departure permission signal is sent to.

Separately, even in the case of a discounted vehicle or an exempt vehicle, since the vehicle number is input to the manual input device 17 in advance, the discounted rate is transmitted to the fare checker 16 for the discounted vehicle. The exit permission signal is transmitted to the exit breaker for the exempt vehicle.

1 is a block diagram showing the configuration of an automatic parking management system according to the present invention.

Figure 2 is a perspective view for explaining a vehicle number process in the automatic parking management system according to the present invention.

Figure 3 is a side cross-sectional view for explaining the rotation structure of the camera in the automatic parking management system according to the present invention.

Figure 4 is a plan view showing a plane of the access vehicle photographing device and the adjusting device in the automatic parking management system according to the present invention.

Claims (3)

Composed of a plurality of detection sensors provided at regular intervals on both sides of the entrance and exit, the sensing sensor unit for measuring the distance x1, x2 from the detection sensor to the vehicle, subtracting the x1, x2 from the width of the entrance and calculate the vehicle width data ; Moving to the center line of the vehicle to perform at least three times when the vehicle is located in the distance range (A ~ B) suitable for photographing the front license plate and performing the license plate recognition using the best image to recognize the license plate Entrance vehicle photographing apparatus; An adjusting device for providing power to move and rotate the vehicle imaging apparatus according to the received control signal; When the vehicle width data is received from the sensor, the vehicle is recognized as being in or out of the vehicle, and the vehicle width data is compared with a preset reference value to determine a vehicle type, and a control signal for moving or rotating the vehicle imaging apparatus is generated. If the vehicle number is received from the entrance vehicle photographing device when entering the vehicle, it generates vehicle information including the model, image, and current time according to the vehicle number, and parking time, parking fee, A parking lot control PC for generating information including a discount amount, a payment amount, a payment time, a payment means, and a control signal to issue a control signal for allowing the vehicle to be parked with the parking fee; Vehicle number, vehicle type, arrival time, entrance image, departure time, exit image, parking time, parking fee, discount amount, payment amount, payment time, for all vehicles entering and exiting the parking lot based on the data transmitted from the parking control PC A parking database (DB) for storing information including payment means; An entrance blocking unit for opening or closing an entrance in accordance with a control signal transmitted from the parking lot control PC; A rate calculator for automatically calculating a parking fee by a user's desired payment method among credit cards, traffic cards, RF tags, and cash based on the data transmitted from the parking database; Automatic parking management system comprising a. The method of claim 1, The adjusting device includes a drive motor for generating a rotational force, a driven roller that rotates according to the rotational force of the drive motor, and a transport belt inserted between the drive motor and the driven roller to fix the camera and the bracket of the vehicle imaging apparatus. Parking management system. The method according to claim 1 or 2, The entrance and exit vehicle photographing apparatus includes a second camera for photographing the rear license plate at least three times, a drive motor for generating a rotational force for moving the second camera to the left or the right, and a driven rotation to be rotated according to the rotational force of the drive motor. And a transfer belt inserted between the roller, the driving motor, and the driven roller to fix the second camera and the bracket.

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