KR100470489B1 - System and method for tracking of bus running route - Google Patents

Abstract

The bus terminal and bus company server, which are currently used as the transportation card collection system, record and calculate the bus trajectory and compare it with the designated route to determine whether the bus is overspeed or whether the designated route is out of service.

To this end, the bus trajectory tracking method of the present invention comprises the steps of detecting the position coordinates of the bus at predetermined time intervals and storing them in the bus terminal; Transmitting the position coordinates of the bus operation trajectory stored in the bus terminal to a server; And comparing the driving trajectory line connecting the position coordinates of the transmitted bus driving trajectory on the two-dimensional map provided in the server with the bus route of the corresponding bus set on the two-dimensional map in advance.

Description

Transportation card collection system and method for tracking bus tracks {SYSTEM AND METHOD FOR TRACKING OF BUS RUNNING ROUTE}

Currently, traffic cards are popularized and widely used in subways and buses. In the case of buses, all buses currently operating are equipped with bus terminals for transportation card payment processing. On the other hand, the commercialization of GPS technology can determine the current position in the vehicle, and in the case of bus can be used to measure the traffic congestion or dispatch interval.

In the case of local buses, unlike Seoul, the need for avoiding traffic congestion is low, but due to the nature of the route over a wide area, it is necessary to eliminate the possibility of speeding and to ensure compliance with the designated route due to the interests of various bus companies. A management system is desperately needed.

Rather than mounting a separate device on the bus for the bus management system, it is economically and technically desirable to apply a transportation card payment processing system that is already mounted on almost all buses. In the existing technology, for this purpose, a repeater was installed at each station to check whether the repeater and the bus terminal communicated with each other, and in this case, it was required to install as many repeaters as the bus stops. In case of illegal operation by completely leaving the line, there was a problem in which the operation region was unknown.

The present invention has been made to solve the above problems, and an object of the present invention is to use a bus terminal and a bus company server currently used as a transportation card collection system to record / calculate the driving trajectory of a bus (designated bus). The present invention provides a method for determining whether the bus is overspeed or whether the designated route deviates from the operation of the bus.

Still another object of the present invention is to provide a traffic card collection system capable of tracking a bus track, which can be used to determine whether the bus is overspeed or a designated route during operation of the bus by recording / calculating the bus track and comparing it with a designated line. have.

1 illustrates a data structure in which bus driving position coordinates used in the present invention are stored.

2 shows a comparison between a driving track line and a bus route used in the present invention.

3 is a diagram illustrating a process of determining whether a bus route deviates from driving trajectory data used in the first embodiment of the present invention.

4 is a diagram illustrating a process of determining whether a bus route deviates from driving trajectory data used in the second embodiment of the present invention.

5 is a flowchart illustrating a process of a bus track tracking method according to the present invention.

Bus tracking method of the present invention for achieving the above object comprises the steps of detecting the position coordinates of the bus at a predetermined time interval and storing in the bus terminal; Transmitting the position coordinates of the bus operation trajectory stored in the bus terminal to a bus company server; A driving trajectory line connecting the position coordinates of the transmitted bus driving trajectory on the driving related data storage unit (or two-dimensional map) provided in the server and a corresponding bus set in advance on the driving related data storage unit (or two-dimensional map). Comparing with the bus route of the.

The bus terminal of the present invention for achieving the above object comprises an RF card reader for interfacing with a traffic card during payment processing; An authentication processing unit which verifies the validity of the traffic card being processed for payment; A transaction history storage area for storing a payment processing status of the paid transportation cards; A position determining unit for detecting a current position of the vehicle; A driving trajectory recording unit for storing current position values at predetermined time intervals or at every door opening and closing; It is characterized in that it comprises a control unit for performing a payment process when using a traffic card, and performs a current position value storage operation.

Bus company server of the present invention for achieving the above object comprises an input unit for collecting the transaction record and the operation record from the payment terminal; A settlement unit for transmitting each transaction record to a card company server according to the transaction record details; A driving-related data storage unit (or two-dimensional map) for storing bus route information to be carried by the bus and bus operation trajectory information actually carried by the bus; And comparing the bus route information displayed on the driving related data storage unit (or two-dimensional map) with the bus driving trajectory information to determine whether the bus is overspeed and whether the bus route is in violation. It is done.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

(First embodiment)

2 is a view illustrating a comparison between a driving track line and a bus line used in the present invention, and FIG. 3 is a view for explaining a process of determining whether a bus line departs from the driving track line data used in the first embodiment of the present invention.

When the bus is operating, the position coordinates of the bus are calculated at a predetermined time interval (here 1 minute) by measuring with a timer provided in the bus terminal. The general method of calculating the coordinates of the bus position is to find the current position from the GPS satellites using the GPS module.In order to compensate for GPS inaccuracy, the gyroscope or the number of bus wheel revolutions are measured, and the moving distance, direction of movement, and after movement. It is desirable to supplement the method of finding the coordinates. The calculated current coordinates of the bus are stored in the bus storage device (which will be the internal memory of the bus terminal). The method of storing is to record the longitude coordinates and the latitude coordinates in order every minute in the memory. It will be described below with reference to FIG. 1). The bus terminal transmits bus trajectory position information recorded in the memory as described above to the bus company server at every designated time or at a designated position or when the transaction history is transmitted. The bus company server stores bus route (operation route) data for each bus number, which is represented by a set of coordinates (hereinafter referred to as N in a predetermined number) for each point at a predetermined distance interval on the bus route. A bus company server obtains a driving trajectory line by collecting coordinates of each point forming a broken line graph in order to connect the received bus trajectory position coordinates, obtains the total length of the driving trajectory line, and compares with the bus route. The procedure will be described with reference to FIG. 3 as follows.

Calculate the distance between adjacent coordinates of each 1 minute interval of bus track position information , Xd: difference of x coordinates between adjacent coordinates, Yd: difference of y coordinates between adjacent coordinates, R: distance between adjacent coordinates), and the unit distance obtained by dividing the total distance by N is obtained. Next, a set of coordinates of a point at which a distance from a starting point is an integer multiple of the unit length on a driving trajectory line of an actual bus is obtained. The method is performed when the distance between position coordinates of adjacent time interval points is longer than the unit distance. Display the unit length point which becomes the unit length from the position coordinate which is a starting point on a straight line connecting two position coordinates, and compare the distance and the unit length obtained by calculating the distance between the unit length point and the remaining position coordinates other than the starting point. Do the process again. In the shorter case, the unit distance is subtracted from the distance between the position coordinates, and the process is performed again by comparing the subtracted distance with the distance between the position coordinates of the next adjacent time interval point. By repeating these processes, N integer unit distance points are obtained, and then compared with the N bus line coordinate sets, the distance between the corresponding two position coordinates is obtained from the starting point in each order. At each point divided by N, the distance is measured. If the distance obtained is greater than or equal to a certain threshold value, it is determined that the bus has unreasonably departed from the designated route.

In the present embodiment, whether the speed is determined is determined that the speed exceeds the speed limit for one minute if the distance of the position coordinate of each adjacent time interval point is more than a certain threshold value.

(Second embodiment)

FIG. 4 is a diagram illustrating a process of determining whether a bus route deviates from driving trajectory data used in the second embodiment of the present invention, and the second embodiment is merely to implement the present invention. The point of difference with an Example is as follows.

The purpose of this embodiment is to examine only whether or not it has passed the stop position exactly on the bus route and whether or not the speeding, the bus route display of this embodiment represents only the coordinates of the stop position as a set. The bus company server checks whether the bus track position information received from the bus terminal is separated from the bus route. The method finds the coordinate value of the bus track position information closest to each stop position coordinate, and the distance is If it is over the limit, it is judged that the bus operated without passing through the designated stop on the designated route. In this embodiment, whether to speed is determined is the same as the first embodiment.

FIG. 1 illustrates a data structure in which bus coordinate position coordinates used in the present invention are stored. FIG. 5 is a flowchart illustrating a process of a bus trace tracking method according to the present invention. The method of storing the bus trajectory position coordinates used in the present invention includes a method of sequentially storing the current coordinates (e.g., longitude coordinates) measured in 1 minute in a memory, and recording the longitude coordinates, latitude coordinates, and recording time in a memory. There is a way. In the latter method, when calculating the bus trajectory position coordinates, in addition to the measured value at each time interval (1 minute), the positional coordinates of the bus can be recorded every time the door is opened or closed to check whether the door is opened or closed at the designated stop. You can also check whether you have passed through the stop at the expected time of normal bus operation. Allocate 3 bytes for longitude coordinates, 3 bytes for latitude coordinates, 4 bytes for recording time, record position coordinates every 1 minute, and 10 (bytes) * 60 (minutes) for a 20-hour drive. * 20 (time) = 12,000 bytes (about 15K bytes) of bus operation trajectory data is generated.

In the case of the bus track tracking method according to the present invention, when the bus operates at a speed or deviation from a designated route, a bus association composed of a bus company is imposed a fine or a disciplinary measure to maintain the order of bus operation.

When the bus track tracking method according to the present invention is actually used, fines or disciplinary measures can be taken for a bus (company) that is determined to be overspeed or bus departure from the bus combination. In this case, in order to provide a more objective basis for judgment, a two-dimensional map representing a rectangular area in which each bus is operated is configured on the bus company server, and a bus route and a driving trajectory line are displayed on the two-dimensional map, thereby providing the two-dimensional map. It can also be implemented to display or print the bus route and trajectory line together.

(Third Embodiment)

As shown in Fig. 5, the present embodiment is a bus terminal used in a bus track tracking method, comprising: an RF card reader 50 for providing an interface with a traffic card used for payment processing; An authentication processing unit 60 which verifies the validity of the traffic card with the key value of the traffic card being processed for payment and checks whether the card number is recorded in the BL data in the case of the postpaid card; A transaction history storage area 70 for storing a payment processing status of the paid transportation card and the postpaid card; A position determining unit 20 for detecting a current position of the vehicle using the mounted GPS module; Timer unit 40 for measuring the elapse of a predetermined time; A driving trajectory data storage area 30 for storing current position values at predetermined time intervals or at every door opening and closing; It characterized in that it comprises a control unit 10 for performing a payment process when using a traffic card, and performs a current position value storage operation.

This embodiment is implemented as a bus terminal for collecting a fare with a traffic card to perform a location detection function of the vehicle or a driving trajectory storage function. The RF card reader 50 is an RF antenna that forms a contactless interface with a traffic card and a radio module that demodulates a radio signal from the RF antenna into an original signal (baseband signal) or modulates an original signal into a radio signal. Is done. The authentication processing unit 60 is composed of a security module (SAM) and a key value storage unit. First, when a traffic card is recognized, mutual authentication is performed by exchanging and decrypting the key value stored in the traffic card and the encrypted value with the key value stored in the security module. Or, it performs the one-way authentication and authenticates the validity of the card.In case of the postpaid card, if the card number value read from the card number area of the traffic card is present in the BL (blacklist) data in the terminal, it does not exist. Only pay the fee. In the transaction history storage area 70, the value of the billed payment is stored (the value is transferred to the settlement server and refunded to cash or bank account), and in the case of a postpaid card, payment processing is stored for each card. Done. The current position coordinates of the bus consisting of the north latitude coordinate and the longitude coordinate are obtained from the position determining unit 20 through the GPS module, and the coordinates obtained at every designated time (for example, recording every minute) are recorded in the driving data storage area 30. do. Preferably, if the weather is not good, it is better to combine the GPS module with the gyroscope, the speedometer, or the bus speed meter to calculate the current position of the bus, rather than using GPS with less accuracy. The timer unit 40 is a device for measuring the elapse of a predetermined time (1 minute), it is preferable to use that provided for the time measurement in the existing bus terminal. The control unit 10 performs the authentication process of the traffic card, which is the original operation of the bus terminal, as described above, and performs the payment process of the traffic card (the payment process reduces the value of the current amount stored in the traffic card by the designated fee), As above, the current position confirmation or current position coordinate value storage of the bus is performed. Instead of storing the current position coordinates of the bus, it is also possible to use the wireless communication means to transmit the current position coordinates of the bus to the bus company server. It is recommended to transfer the current position coordinate values in a batch). The control unit 10 may be configured to separate the portion to perform the authentication process and bill payment processing, the current location coordinate check or storage function, but it is better that one control unit to process together.

Fourth Embodiment

The present embodiment is a bus company server used in a traffic card collection system comprising a bus terminal for a traffic card payment processing and a bus company server that collects and calculates a bus's driving record and transaction history, and records a transaction from the payment terminal. An input unit 140 for collecting the details and driving records; A settlement unit 150 for transmitting each transaction record to a financial institution (card company) server 200 according to the transaction record details; A driving-related data storage unit 130 having bus route data indicating a bus route to be carried by the bus and driving trajectory line data actually carried by the bus; A driving trajectory comparison judging unit 120 which compares the bus route and the driving trajectory line shown in the driving related data storage unit to determine whether the bus is overspeed or whether the bus route is violated; It characterized in that it comprises a control unit 110 for coordinating and controlling the processes of the respective parts.

The bus trajectory tracking method of the present invention can make a more convenient judgment by displaying a bus operation trajectory and a bus route on a two-dimensional map, and can be implemented to compare the route on which the actual bus has traveled on a map. To this end, the bus company server has a two-dimensional data map structure for displaying a map of the bus operating area, and the bus route data consists of a set of coordinate values of each point on the bus route. The 2D data map contains a map of the area near the bus service, and when the bus route data for each bus is matched on the 2D data map and displayed for external viewing, the observer must navigate to which area the bus operates. You can see at a glance. Match bus trajectory data (This process connects the position coordinates of the buses recorded in 1 minute order in that order. The detailed trajectory data is composed by collecting the coordinate values of each point of the connecting line of the position coordinates for data analysis. On the map, the area where the actual buses were operated is displayed, and the area where the actual buses are operated is also displayed, which can also be displayed externally. The 2D data map has data fields indicating each point in the area near the bus service, and the data fields have different values according to the geographical / map characteristics of the area (for example, the road area is "10"). Display, and the building is marked with "20"). The bus route data consists of the address values of the data fields of the 2D map, and converts each position coordinate to the address value of the data field of the 2D map so that the bus driving position coordinate data can also be matched to the 2D map. .

The present invention determines the operation of the bus with the bus trajectory data only when the bus arrives at the end point of the structure, but in actual applications, an intermediate base station (actually, a repeater is placed in the middle of a line for transmitting a traffic card transaction history in the middle of a line). It is possible to determine the bus operation by transmitting the bus operation data to the bus company server in the middle of the bus operation. In this case, deceleration operation instructions, bus route notifications, and warnings may be taken against bus drivers who operate inadequately, such as speeding or departures, even during bus operation.

Although the detailed description of the present invention has been described with respect to the bus and the bus route, it is obvious that other means of transportation that must operate a designated section also fall within the equivalent scope of the present invention.

By using the bus trajectory tracking method according to the present invention, it is possible to check whether the bus is overspeed and whether the designated area deviates by applying an existing traffic card collection system without the need for a separate in-bus device or a stop facility and system.

Claims (7)

delete In the bus trajectory tracking method that can be executed in the server of the bus company that collects the transportation fee collection record from the bus terminal for paying the transportation card, Receiving position coordinates of a bus detected at predetermined time intervals and stored in the bus terminal memory as bus driving trajectory information; The driving trace line connecting the transmitted bus trace information is compared with a preset bus route and outputted. Finding a driving trajectory line point closest to the stop position on the bus route, and outputting a bus line violation state if the distance between the shortest driving trajectory line point and the stop position is greater than a predetermined value; And calculating the distance moved during the predetermined time interval, and outputting the speed at a speed if the calculated movement distance is equal to or greater than a predetermined distance. The method of claim 2, wherein the displaying and outputting the driving trajectory line by comparing with the bus route comprises: Obtaining a driving trajectory line by collecting coordinates of respective points forming a broken line graph in which the position coordinates of the bus received from the bus terminal are sequentially connected; Obtaining an overall length of the driving trajectory line; Positions that are integer multiples of the length divided by the total length of the bus route divided by a predetermined number (division number), and positions that are integer multiples of the length divided by the total length of the driving trajectory line by the predetermined number (division number), Comparing the distances between the positions of the same integer multiples and outputting the bus line violation if the distance is more than a predetermined distance; And calculating the distance moved during the predetermined time interval, and outputting the speed if the calculated movement distance is greater than or equal to the predetermined distance. delete delete delete In the traffic card collection system consisting of a bus terminal for the payment card payment processing, and a server for collecting and paying the bus driving record and transaction history from the bus terminal, The traffic card payment processing bus terminal, A position determining unit for detecting a current position coordinate of the bus using a GPS module; A control unit which performs payment processing when using a traffic card, periodically stores the position coordinates of the bus detected by the position determination unit in a driving trajectory data storage area, and transmits and controls the position coordinates of the stored buses to the server. , The server, An input unit for receiving transaction record details and position coordinates of a bus from the bus terminal; A settlement unit for transmitting the transaction records to the financial institution server according to the transaction records; A bus-related information storage unit for storing bus route information indicating a bus route to be carried by a bus and position coordinates of the bus as bus trajectory information; A driving trajectory comparison unit which compares a bus route indicated by the bus route information stored in the driving related data storage unit with a driving trace line indicated by the bus driving trajectory information and displays whether the speed of the corresponding bus is exceeded and whether the bus route is violated; Traffic card collection system, characterized in that it comprises a.