WO2014098373A1

WO2014098373A1 - System and method for providing bus information by reflecting bus stop order

Info

Publication number: WO2014098373A1
Application number: PCT/KR2013/010229
Authority: WO
Inventors: 이흥수
Original assignee: Lee Heung Soo
Priority date: 2012-12-20
Filing date: 2013-11-12
Publication date: 2014-06-26
Also published as: KR20140080012A

Abstract

A system and method for providing bus information by reflecting a bus stop order are disclosed. A bus information management server for providing bus information to a bus information utilization device includes: a bus location collecting unit for collecting location information on buses running in a zone; a stop order estimating unit for estimating a stop order at a bus stop for any target bus by using the location information; a running information generating unit for generating running information on the target bus by reflecting the stop order; and a bus information transmitting unit for transmitting bus information including the running information to the bus information utilization device.

Description

Bus information provision system and method reflecting bus stop order

The present invention relates to a bus information providing system and method reflecting the bus stop sequence.

Recently, as Bus Information System (BIS) has been activated, it is possible to efficiently operate and use the bus by grasping the bus operation status in real time and providing the corresponding information to bus users. At this time, information provided to bus customers may include a scheduled arrival time of a bus for each route.

If there is an error in the estimated time of arrival, it will cause considerable inconvenience to many bus customers or drivers. The estimated time of arrival needs to be accurately calculated in consideration of real-time traffic conditions.

Korean Laid-Open Patent Publication No. 2011-0002598 discloses an apparatus and method for predicting the arrival time of a bus by learning a traffic volume pattern of surrounding roads. It checks the past travel time of the section according to the past traffic volume of the roads around the section, and calculates the traffic prediction time of the section considering the current traffic volume of the roads around the current section. However, even in this case, there is a limit in calculating the expected time of arrival because it does not reflect the special situation of the bus.

In the case of buses, there are variables called stops at bus stops in addition to variables such as intersection signal waiting. In the case of the route bus, the bus stops at a number of bus stops located on the route to pick up and drop off passengers during the journey from the origin to the destination.

At this time, if there is a preceding bus already stopped at the bus stop, the subsequent bus enters the corresponding bus stop only after the preceding bus leaves the stop, and passengers can get on and off. That is, the arrival at the bus stop, but due to the presence of the preceding bus, the departure time of the bus stop is bound to be delayed for a certain time.

Therefore, in providing bus information, it is necessary to reflect the special situation caused by the bus running along a certain line.

According to the present invention, when a bus stops at a bus stop at an arbitrary bus stop and is compared with an expected stop sequence through actual location measurement, the bus stop sequence enables the generation of more accurate bus operation information by correcting it through feedback. To provide a bus information providing system and method reflecting this.

Other objects of the present invention will be readily understood through the following description.

According to an aspect of the present invention, a bus information management server for providing bus information to a bus information utilization apparatus, comprising: a bus location collection unit for collecting location information of a bus running in a jurisdiction; A stop sequence estimator for estimating a stop sequence at a bus stop for an arbitrary target bus using the position information; A driving information generator for generating driving information of the target bus by reflecting the stop sequence; And a bus information transmitter for transmitting bus information including the driving information to the bus information utilization apparatus.

The stop sequence estimating unit may grasp the number of buses located on the route to the arrival bus stop of the target bus at an arbitrary time point using the position information, and estimate the stop sequence from the number of buses. .

In addition, the stop sequence estimator may estimate the stop sequence by subtracting the number of buses expected to depart from the scheduled bus stop for the expected driving time required for the bus to arrive. Here, the number of buses expected to depart from the scheduled bus stop is the minimum value of the share of the travel time divided by the average stop waiting time and the number of stop waiting buses waiting at the scheduled bus stop at the arbitrary time. Can be.

The driving information generation unit may generate the driving information by applying a value obtained by multiplying the stop order by an average stop waiting time to at least one of a scheduled arrival time and a departure time for each stop of the target bus.

The bus information transmitter may transmit the bus information to the bus information utilization apparatus using at least one of one-to-one communication, one-to-many communication, and broadcasting.

When the correction data including the measured stop order is received from the bus terminal installed in the target bus, the driving information correction unit may further include correcting the drive information by reflecting the measured stop order.

Meanwhile, according to another aspect of the present invention, a bus terminal provided on a bus and receiving bus information from a bus information management server, the bus terminal comprising: a GPS unit for obtaining location information of the bus; A communication unit for transmitting the location information to the bus information management server and receiving bus information including an expected stop order from the bus information management server; A correction unit configured to generate correction data including the measured stop sequence when the measured stop sequence exceeds a preset error range for the expected stop sequence when the bus arrives at a bus stop, wherein the correction data includes the communication unit. A bus terminal is provided, which is transmitted to the bus information management server.

The correction unit calculates the remaining distance to the bus stop using the location information of the bus and the location information of the bus stop calculated by the GPS unit, and divides the distance by the average bus length to calculate the measured stop order. have.

The communication unit receives location information of another bus from the bus information management server, and the bus terminal estimates a stop order at a bus stop for the bus using location information of the bus and location information of another bus. A sequence order estimating unit; The apparatus may further include a driving information generating unit configured to generate driving information of the bus by reflecting the stop sequence.

The stop sequence estimating unit may grasp the number of other buses located on a route to the scheduled bus stop for arrival of the bus at any time by using the location information, and estimate the stop order from the number of other buses. have.

The stop sequence estimator may estimate the stop sequence by subtracting the number of other buses that are expected to depart from the scheduled bus stop for the expected driving time required for the bus to arrive. Here, the number of other buses expected to depart from the scheduled bus stop is the minimum of the share of the travel time divided by the average stop waiting time and the number of stop waiting buses waiting at the scheduled bus stop at the arbitrary time point. Can be.

Meanwhile, according to another aspect of the present invention, there is provided a bus information providing method in a bus information management server for providing bus information to a bus information utilization apparatus and a recording medium on which a program for performing the same is recorded.

In one embodiment, a method of providing bus information includes: (a) collecting location information of a bus running in a jurisdiction; (b) estimating the stop order at a bus stop for any target bus using the location information; (c) generating operation information of the target bus by reflecting the stop sequence; And (d) transmitting bus information including the driving information to the bus information utilization apparatus.

In step (b), the number of buses located on the route to the scheduled bus stop for arrival of the target bus at any point of time may be determined using the location information, and the stop order may be estimated from the number of buses. have.

In step (b), the stop order may be estimated by subtracting the number of buses expected to depart from the scheduled bus stop for the expected driving time required for the arrival bus stop. The number of buses expected to depart from the scheduled bus stop may be a minimum value of the share of the driving time divided by the average stop waiting time and the number of stop waiting buses waiting at the scheduled bus stop at the random time. .

The step (c) may generate the operation information applying the value obtained by multiplying the stop order times the average stop waiting time to at least one of the scheduled arrival time and departure scheduled time of the target bus.

When the correction data including the measured stop order is received from the bus terminal installed in the target bus, the method may further include correcting the driving information by reflecting the measured stop order.

Meanwhile, according to another aspect of the present invention, there is provided a bus information providing method in a bus terminal provided with bus information from a bus information management server and a recording medium on which a program for performing the same is recorded.

In one embodiment, a bus information providing method includes: (a) obtaining location information of the bus; (b) transmitting the location information to the bus information management server; (c) receiving bus information including an expected sequence from the bus information management server; (d) generating correction data including the measured stop sequence when the measured stop sequence exceeds a preset error range for the expected stop sequence when the bus arrives at a bus stop; And (e) transmitting the correction data to the bus information management server.

The step (d) may include: (d1) calculating a remaining distance to the bus stop using the location information of the bus and the location information of the bus stop calculated in the step (a); (d2) dividing the calculated distance by an average bus length may include calculating the measured stop order.

(f) receiving location information of another bus from the bus information management server; (g) estimating a stop order at a bus stop for the bus using location information of the bus and location information of another bus; And (h) generating operation information of the bus by reflecting the stop sequence.

In step (g), the number of other buses located on the route to the scheduled bus stop for arrival of the bus is determined using the position information, and the stop order is estimated from the number of other buses. Can be.

The step (g) may estimate the stop sequence by subtracting the number of other buses that are expected to depart the scheduled bus stop for the expected driving time required for the bus to arrive at the scheduled bus stop. Here, the number of other buses expected to depart from the scheduled bus stop is the minimum of the share of the travel time divided by the average stop waiting time and the number of stop waiting buses waiting at the scheduled bus stop at the arbitrary time point. Can be.

In the step (h), the operation information may be generated by applying a value obtained by multiplying the stop order by an average stop waiting time to at least one of a scheduled arrival time and a departure time for each stop of the target bus.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

According to an embodiment of the present invention, by reflecting the real-time traffic situation according to the specificity of the bus, for example, the bus stop order, the bus user can be informed of accurate bus information (for example, the exact time of arrival of the bus) It works.

In addition, when the bus stop sequence is changed when the bus stops at an arbitrary bus stop and is compared with the expected stop sequence through position measurement, it is effective to generate more accurate bus operation information by correcting it through feedback.

1 is a schematic configuration block diagram of a bus information providing system according to an embodiment of the present invention, Figure 2 is a schematic configuration block diagram of a bus information management server according to an embodiment of the present invention,

3 is a view for explaining a bus stop order estimation method;

4 is a schematic structural block diagram of a bus terminal among apparatuses for utilizing bus information according to an embodiment of the present invention;

5 is a flowchart of a method of providing bus information reflecting a bus stop order in a bus information management system according to an embodiment of the present invention;

6 is a flowchart of a method of providing bus information reflecting a bus stop order in a bus information management system according to another embodiment of the present invention;

7 is a flowchart illustrating a method of providing bus information reflecting a bus stop order in a bus information management system according to another exemplary embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

In addition, the terms “… unit”, “… unit” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals and redundant description thereof will be omitted. Shall be.

1 is a schematic structural block diagram of a bus information providing system according to an embodiment of the present invention.

The bus information providing system according to an exemplary embodiment of the present invention predicts a stop order of a bus at an arbitrary bus station and generates bus operation information by reflecting the same, and informs the driver, passengers, and the like of the information. In addition, when the bus stop sequence is changed through the actual measurement after stopping at the corresponding bus stop, it is possible to generate more accurate bus operation information by correcting it through feedback.

Referring to FIG. 1, the bus information providing system 1 includes a bus information management server 100 and a bus information utilization device 200.

The bus information management server 100 receives bus location information from one or more bus terminals 230 periodically or at any time, and estimates the stop order of buses at each stop using the location information of each bus. Reflects and generates bus operation information. The generated bus operation information may be transmitted to the bus information utilization apparatus 200.

Transmission of bus operation information in the bus information management server 100 may be, for example, in the form of one-to-one communication, one-to-many communication, or broadcasting.

The bus information utilization apparatus 200 displays at least one of text, figures, drawings, and graphics on a screen so that a user can check the bus operation information transmitted from the bus information management server 100 or outputs a voice or sound through a speaker. .

The bus information utilization apparatus 200 may include a bus information notice board 210, a portable terminal 220, a bus terminal 230, and the like.

The bus information notice board 210 is installed at each bus stop and informs the operation information of the bus that is expected to enter the corresponding bus stop, for example, a bus route number, an estimated time of arrival, or a remaining time until arrival. The bus information notice board 210 may include at least one of a screen (eg, an LCD, an LED, an electronic signage, etc.) in which bus operation information is displayed in text, a figure, a picture, a graphic, and the like, and a speaker in which the bus operation information is output in voice or sound. It includes one.

The mobile terminal 220 is a network device that is expected to use a bus or possessed by a passenger who boards a bus. For example, the portable terminal 220 may be one of a mobile phone, a smartphone, a tablet PC, and the like.

The mobile terminal 220 may be provided with a software module 225 for the bus information service in the form of an application. The application installed in the mobile terminal 220 is a service application that provides bus information, and may output bus operation information received from the bus information management server 100 in a method that can be checked by a user (screen display, speaker output, etc.). .

The portable terminal 220 may receive bus operation information transmitted from the bus information management server 100 through a receiver provided in the terminal.

The bus terminal 230 is installed in the bus driver's seat and the driving information for the bus currently running, for example, the distance to the next bus stop of the bus, the expected stop order, the estimated time of arrival or the remaining time until the arrival, the bus It informs you of the scheduled departure time of the stop.

The bus terminal 230 may include the GPS unit 231 or may be connected to the GPS unit 231 installed in the bus to acquire location information on the current location coordinates of the bus. The bus terminal 230 checks the actual stop order of the bus at the corresponding bus stop based on the current location information, and transmits the measured bus stop order to the bus information management server 100 when the bus operation information needs to be changed. The bus operation information can be corrected.

According to the bus information providing system according to the present embodiment, the bus stop order according to the real-time traffic situation is reflected in the bus operation information, so that the driver, passengers, and bus waiting passengers can be notified of the accurate bus arrival scheduled time. In addition, when there is a difference between the estimated value and the measured value of the bus stop order, the accuracy of the bus operation information may be improved by feeding back the same.

Hereinafter, the bus information management server 100 and the bus information utilization apparatus 200 will be described in detail with reference to the accompanying drawings.

2 is a schematic block diagram of a bus information management server according to an exemplary embodiment of the present invention, and FIG. 3 is a diagram for describing a bus stop order estimation method.

2, the bus information management server 100 according to the present embodiment includes a bus position collecting unit 110, a stop sequence estimating unit 120, a driving information generating unit 130, and a bus information transmitting unit 140. It includes. According to an embodiment, the driving information correction unit 150 may be further included.

The bus location collecting unit 110 may collect location information of route buses that are operated in an area controlled by the bus information management server 100 periodically or at any time. That is, the position information on the current position of the bus is received from the bus terminal or the GPS unit installed on the bus.

The stop order estimator 120 estimates the stop order of a bus at a time when the bus arrives at the bus stop at which the bus is currently arriving. The stop order can be estimated from the number of buses located between the scheduled bus stop and the target bus at any point in time.

Referring to FIG. 3, when the target bus is Bn at any time T1, the number of buses B1, B2, ..., Bk, ... located between the scheduled bus stop BS1 and the target bus Bn ( By adding one target bus to n-1), it can be assumed that the target bus has a stop order of n. Where n is any natural number.

The bus located between the scheduled bus stop and the target bus may be divided into a stop waiting bus and a stop bus. When the target bus arrives at the scheduled bus stop, the time passes by the travel time Td (= L / V) of the target bus calculated according to the distance (L) to the bus stop and the traveling speed (V) of the target bus. Some or all of the waiting buses may have departed to the next bus stop.

Therefore, the stop order of the target bus can be corrected by subtracting the number of buses expected to leave the bus stop while the running time Td of the target bus has elapsed. In this case, the number Nd of the expected departure bus may be the minimum value of the share of the travel time Td divided by the average stop waiting time Tw and the number of stop waiting buses.

[Equation 1]

Nd = min (number of stations waiting bus, Td divided by Tw)

The driving information generator 130 generates driving information of the target bus by reflecting the stopping sequence estimated by the stopping sequence estimator 120. The service information includes the estimated time of arrival and / or the estimated time of departure by the stop of the target bus reflecting the stop order.

When the bus stops at the bus stop, it takes a certain time (To) on average due to the passengers getting on and off. Therefore, if the stop order of the bus is n at any bus stop, considering the passengers to get on and off the preceding bus, n x To will be more time at the bus stop. That is, when the passengers get on and off according to the stop sequence is reflected, the time at which the corresponding bus is expected to leave the bus stop can be calculated. From this, the estimated time of arrival at the subsequent bus stop can be recalculated, and more accurate bus operation information can be informed to waiting passengers and drivers.

The bus information transmitter 140 transmits bus information including the bus information generated by the bus information generator 130 to the bus information utilization apparatus 200.

The bus information includes driving information generated by the driving information generation unit 130, and additionally identification information of the bus (for example, a route number, a bus vehicle number, etc.), current location information of the bus, and an expected stop order of the bus. At least one of may be further included.

The bus information may be transmitted through one-to-one wired or wireless communication, one-to-many wired or wireless communication, or broadcasting signal transmission. Here, in the case of broadcast signal transmission, bus information is transmitted through a broadcasting network in a broadcast signal, and a broadcast signal is received by a bus information utilization apparatus having a broadcast signal receiver, thereby providing more information for a plurality of unspecified bus information utilization apparatuses. Bus information can be transmitted.

When the correction data is received from the bus terminal 230, the driving information corrector 150 may correct the driving information accordingly.

The correction data may be mapped to bus identification information by the bus terminal 230 when the bus terminal 230 arrives at the actual bus stop and then measures the measured sequence using the measured distance and the average bus length between the bus and the bus stop.

Therefore, the driving information correcting unit 150 applies the actual stopping order included in the correction data instead of the estimated stopping order estimated by the stopping order estimator 120 for the bus corresponding to the bus identification information, and the estimated time of arrival for each stop. And / or by calculating the estimated departure time.

In this case, the bus information transmitter 140 may retransmit bus information including the driving information corrected by the driving information corrector 150 to the one or more bus information utilization apparatuses 200.

4 is a schematic structural block diagram of a bus terminal in a bus information utilization apparatus according to an embodiment of the present invention.

Referring to FIG. 4, the bus terminal 230 according to the present embodiment includes a GPS unit 231, a communication unit 232, an output unit 233, and a correction unit 234. According to an embodiment, the sequence order estimator 235 and the operation information generator 236 may be further included.

The GPS unit 231 receives GPS satellite signals transmitted from a plurality of GPS satellites, and calculates position coordinates of a bus on which the bus terminal 230 is installed. The GPS unit 231 may calculate accurate position coordinates by removing reflection errors due to the nature of the route bus that mainly runs downtown.

The method of removing the reflection error is as follows. The GPS satellite signal including the reflection error is detected from the received GPS satellite signals, and the GPS satellite signal including the reflection error (reflection satellite signal) may be eliminated by not participating in the position calculation. To this end, generating a plurality of satellite signal groups by combining a plurality of GPS satellite signals received, GPS that causes a reflection error by using a pseudo range by the GPS satellite signals included in each satellite signal group Selecting a low error satellite signal group that does not include or minimally include satellite signals, detecting a GPS satellite signal that is not included in the low error satellite signal group as a reflected satellite signal, and remaining GPS satellite signals excluding the reflected satellite signal Computing the exact position coordinates of the bus using the.

The communication unit 232 transmits the position coordinates of the bus calculated by the GPS unit 231 to the bus information management server 100. The transmission of the position coordinates may be performed periodically or when there is a position request in the bus information management server 100.

In addition, the communication unit 232 receives the bus information from the bus information management server 100. The bus information includes bus identification information and operation information, and may further include an expected stop order of the bus. As described above, the operation information may include a scheduled arrival time and / or a departure time for each stop reflecting an expected stop order of the bus.

In the present embodiment, the communication unit 232 may be, for example, a broadcast signal receiver such as a DMB receiver, a DVB receiver, or the like. When the bus information management server 100 transmits bus information for a plurality of buses in a batch through a broadcasting network, the communication unit 232 determines whether there is bus identification information corresponding to the bus where the bus terminal 230 is installed, and The driving information mapped to the bus identification information may be extracted.

The output unit 233 may output operation information of the bus received through the communication unit 232 through a screen and / or a speaker installed in the bus. The bus driver may check the bus operation information output through the screen and / or the speaker, and may adjust the bus operation to meet the preset driving schedule.

The correction unit 234 generates correction data for correcting when the expected stop order of the bus is different from the stop order of the actual bus among the operation information of the bus received through the communication unit 232, and the communication unit 232. By transmitting to the bus information management server 100 through the operation information for the bus can be corrected.

If the bus moves below a predetermined speed (eg, 5 km / h) near the bus stop, it may be assumed that the bus is waiting by the preceding bus that has entered the bus stop at the entrance of the bus stop. In this case, the remaining distance to the bus stop is calculated by using the current position coordinates of the bus and the position coordinates of the bus station calculated by the GPS unit 231, and the result is divided by the average bus length (see LB in FIG. 3). The order of stops in can be measured.

When the measured stop order is substantially the same as the expected stop order (for example, within a preset error range), the correction unit 234 no longer operates, but when the measured stop order differs from the expected stop order ( For example, when the error range is exceeded), the correction unit 234 generates correction data including the measured stop order and the bus identification information, and transmits the correction data to the bus information management server 100 through the communication unit 232. .

When the correction data is received, the bus information management server 100 updates the operation information of the bus corresponding to the bus identification information with data applying an actual stop order, and updates the updated bus operation information to the other bus information utilization apparatus 200. Resend.

As a result, correction of driving information is performed only when correction is required, thereby reducing the amount of communication bandwidth and providing accurate bus information.

In another embodiment, the bus terminal 230 may directly estimate the stop order of the bus and generate driving information accordingly. To this end, the bus terminal 230 may further include a stop sequence estimator 235 and a driving information generator 236.

The communication unit 232 receives location information of another bus from the bus information management server 100.

The stop order estimator 235 calculates the number of buses located between the paths to the next bus stop based on the position information of the other buses received by the communication unit 232 and the position information calculated by the GPS unit 231. From this, the bus stop order can be estimated. This has been described above with reference to FIG. 3, and is the same as the operation principle of the stop order estimator 120 of the bus information management server 100. In addition, since the operation information generation unit 236 is the same as the operation principle of the operation information generation unit 130 of the bus information management server 100 described above, the description thereof will be omitted.

5 is a flowchart illustrating a method of providing bus information reflecting a bus stop order in a bus information management system according to an exemplary embodiment of the present invention.

In FIG. 5, a bus information providing method performed by each component of the bus information management server 100 will be described.

In step S300, the bus position collecting unit 110 receives the current position information of the bus from the bus terminal 230 installed in the bus. The current position information of the bus is the position coordinates of the bus calculated by the GPS unit 231 included in the bus terminal 230, and is transmitted from the bus terminal 230 periodically or when the bus information management server 100 requests it. .

Here, the current location information of all the buses in the area managed by the bus information management server 100 may be received simultaneously or in any order.

In step S310, the stop order estimator 120 estimates the stop order at a bus stop that is scheduled to arrive on a route currently being operated for any bus.

The estimation of the stop sequence uses the number of buses located on the path from the position of the current target bus to the bus stop from the position coordinates of the bus stop and the position coordinates of the target bus. In addition, it is possible to increase the accuracy of the estimation by subtracting the number of buses that are expected to depart after waiting at the bus stop for the estimated time to the bus stop.

In operation S320, the driving information generation unit 130 generates driving information by reflecting the estimated stop sequence. The service information includes the estimated time of arrival and / or the estimated time of departure for each stop of the target bus. This is because the estimated arrival time and / or departure scheduled time may be calculated for subsequent bus stops when the stop order at any one bus stop is estimated and / or the scheduled departure time is determined.

In operation S330, the bus information transmitter 140 transmits bus information including the bus information generated by the bus information generator 130 to the bus information utilization apparatus 200. Here, the bus information may be transmitted through one-to-one wired or wireless communication, one-to-many wired or wireless communication, or broadcasting signal transmission.

The bus information may include bus identification information and corresponding driving information mapped thereto, and may further include an estimated stop order for each bus stop.

In addition, the bus information utilization apparatus 200 to be transmitted may include a bus information notice board 210, a bus terminal 230, a portable terminal 220 on which a bus information service application is installed, and the like.

In operation S340, when correction data is received from the bus terminal 230, the driving information corrector 150 may correct the driving information according to the correction data.

The corrected data includes the bus sequence 230 mapped to the bus identification information after the bus terminal 230 arrives at the actual bus stop and measured using the measured distance between the bus and the bus stop and the average bus length.

Therefore, the operation information correcting unit 150 applies the actual stop order included in the correction data instead of the estimated stop order estimated in step S310 for the bus corresponding to the bus identification information, and arrives at each stop and / or is scheduled to depart. By calculating the time, the driving information can be corrected.

In operation S350, the bus information transmitter 140 may retransmit bus information including the driving information corrected by the driving information corrector 150 to the bus information utilization apparatus 200.

6 is a flowchart illustrating a method of providing bus information reflecting a bus stop order in a bus information management system according to another exemplary embodiment of the present invention.

In FIG. 6, a bus information providing method performed by each component of the bus terminal 230 will be described.

In step S400, the GPS unit 231 calculates the current position coordinates of the bus where the bus terminal 230 is installed. The GPS unit 231 may calculate a more accurate position coordinate by removing a reflection error of a GPS satellite signal due to a characteristic of a route bus that mainly operates downtown.

In step S410, the communication unit 232 transmits the current position coordinates of the bus calculated by the GPS unit 231 to the bus information management server 100.

In operation S420, the communication unit 232 receives bus information from the bus information management server 100. 5, the bus information transmitted in step S330 of FIG. 5 may be received, and the expected stop order information of the bus may be included. The output unit 233 may output the received bus information through a screen or a speaker.

In step S430, the correction unit 234 measures the stop order at the bus stop. If the bus is moving below a predetermined speed near the bus stop, it can be assumed that the bus is waiting by the preceding bus that has entered the bus stop at the entrance of the bus stop. In this case, the distance from the current position coordinates of the bus and the position of the bus stop calculated by the GPS unit 231 to the bus stop is calculated and divided by the average bus length, so that the measurement of the stop order is possible.

In step S440, the measured stop order is compared with the expected stop order included in the bus information received by the bus information management server 100.

As a result of the comparison, if there is an error over a preset error range, the process proceeds to step S450 and the measurement stop sequence is transmitted as the correction data to the bus information management server 100. When the bus information management server 100 receives the correction data, the bus information management server 100 may update the bus information by extracting the actual stop order.

If there is no error over the preset error range, the process returns to step S400, so that actual measurement information is not always sent to the bus information management server 100, so that the amount of data transmitted is systematically reduced to ensure sufficient communication bandwidth, while providing smooth feedback. Can be done.

In FIG. 7, a bus information providing method performed by each component of the bus terminal 230 will be described. Steps S500 and S510 are the same as those of steps S400 and S410 of FIG. 6, and will be described below with reference to parts having different differences.

In operation S520, the communication unit 232 receives location information of another bus from the bus information management server 100.

In step S522, the stop order estimating unit 235 calculates the number of buses located between the paths to the next bus stop based on the location information of the other bus received in step S520 and the current location information of the bus calculated in step S500. Calculate and estimate bus stop order from this. The accuracy of the estimate can be improved by subtracting the number of buses that are expected to depart and wait at the bus stop for the estimated time to the bus stop.

In operation S524, the driving information generation unit 236 generates driving information by reflecting the estimated stop sequence. The service information includes the estimated time of arrival and / or the estimated time of departure of each target bus. This is because the estimated arrival time and / or departure scheduled time may be calculated for subsequent bus stops when the stop order at any one bus stop is estimated and / or the scheduled departure time is determined.

In step S526, the communication unit 232 transmits the driving information generated by the driving information generation unit 236 to the bus information management server 100, so that the bus information service may be provided by the bus information management server 100. The bus information including the driving information may be transmitted to the utilization device 200.

In step S530, the correction unit 234 measures the stop order at the bus stop. In step S540, the measured stop order is compared with the expected stop order estimated in step S522. As a result of the comparison, if there is an error in a predetermined error range or more, in step S550, the measured stop order is transmitted to the bus information management server 100 as correction data, so that the bus information is updated in the bus information management server 100. .

The bus information providing method described with reference to any one of FIGS. 5 to 7 may be performed by an automated procedure according to a time series sequence by a program embedded in or installed in a digital processing apparatus (bus information management server or bus terminal). Of course. Codes and code segments constituting the program can be easily inferred by a computer programmer in the art. The program is also stored in a computer readable media that can be read by a digital processing device, and read and executed by the digital processing device to implement the method. The information storage medium includes a magnetic recording medium, an optical recording medium and a carrier wave medium.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

Claims

A bus information management server for providing bus information to a bus information utilization device,

A bus location collecting unit for collecting location information of a bus running in a jurisdiction;

A stop sequence estimator for estimating a stop sequence at a bus stop for an arbitrary target bus using the position information;

A driving information generator for generating driving information of the target bus by reflecting the stop sequence; And

And a bus information transmitter for transmitting bus information including the service information to the bus information utilization apparatus.
The method of claim 1,

The stop sequence estimator uses the position information to grasp the number of buses located on the route to the expected bus stop of the target bus at an arbitrary time point, and estimates the stop sequence from the number of buses. Bus information management server.
The method of claim 2,

The bus order estimating unit estimates the bus stop order by subtracting the number of buses expected to depart from the bus arrival expected during the expected driving time required for the bus to arrive. Management server.
The method of claim 3,

The number of buses expected to depart from the scheduled bus stop is the minimum of the share of the travel time divided by the average stop waiting time and the number of stop waiting buses waiting at the scheduled bus stop at the arbitrary time. Bus information management server.
The method of claim 1,

The bus information management server generates the bus information by applying the value obtained by multiplying the stop order times the average bus stop time to at least one of a scheduled arrival time and a departure time of each target bus. .
The method of claim 1,

And the bus information transmitter transmits the bus information to the bus information utilization apparatus using at least one of one-to-one communication, one-to-many communication, and broadcasting.
The method of claim 1,

And a bus information management unit for correcting the bus information by reflecting the bus stop order when received from the bus terminal installed in the bus.
In the bus terminal provided on the bus, the bus information is provided from the bus information management server,

A GPS unit for obtaining location information of the bus;

A communication unit for transmitting the location information to the bus information management server and receiving bus information including an expected stop order from the bus information management server;

A correction unit configured to generate correction data including the measured stop sequence when the measured stop sequence exceeds a preset error range for the expected stop sequence when the bus arrives at a bus stop;

And the correction data is transmitted to the bus information management server through the communication unit.
The method of claim 8,

The correction unit calculates the remaining distance to the bus station using the position information of the bus and the position information of the bus station calculated by the GPS unit, and divides the distance by the average bus length to calculate the measured stop order. Bus terminal, characterized in that.
The method of claim 8,

The communication unit receives location information of another bus from the bus information management server,

The bus terminal,

A stop order estimator for estimating a stop order at a bus stop for the bus using location information of the bus and location information of another bus;

The bus terminal further comprises a driving information generation unit for generating the driving information reflecting the stop order.
The method of claim 10,

The stop sequence estimating unit uses the positional information to grasp the number of other buses located on the route to the scheduled bus stop of arrival at an arbitrary time point, and estimates the stop sequence from the number of other buses. A bus terminal characterized by the above-mentioned.
The method of claim 11,

The stop sequence estimating unit estimates the stop sequence by subtracting the number of other buses expected to depart from the expected bus stop for the estimated driving time required for the bus to arrive at the expected bus stop. .
The method of claim 12,

The number of other buses expected to depart from the expected bus stop is the minimum of the share of the travel time divided by the average stop waiting time and the number of stop waiting buses waiting at the scheduled bus stop at the arbitrary time. A bus terminal characterized by the above-mentioned.
The method of claim 10,

And the bus information generator generates the bus information by applying a value obtained by multiplying the stop order by an average bus stop time to at least one of a scheduled arrival time and a departure time of each target bus.