KR20190084614A - Traffic signal control system and method for cross-road - Google Patents

Abstract

The present invention relates to a system and a method for controlling a traffic signal of an intersection which use beacon information transmitted from a mobile terminal of a driver having a high distribution rate and being drivable without installing a separate program to generate traffic information and real-time communication information to generate accurate traffic information and real-time communication information due to a huge amount of collected data and reduce installation costs since realization is possible without installing a separate terminal and a dedicated program in a vehicle. Public influence can be increased. A traffic equipment analysis device receives beacon information from an intersection relay of the same intersection and intersection relays of adjacent intersections to generate real-time communication information including communication information with each adjacent intersection. A signal control device incorporates the real-time communication information on a preset display cycle to change the display cycle to provide an optimal intersection signal corresponding to a real-time traffic situation to minimize a congestion rate of the intersection. The signal control device compares communication information of each adjacent intersection with a preset first set value (TH1) and second set value (TH2) to determine extension or reduction of a signal corresponding to the corresponding intersection to facilitate an intersection vehicle flow by a simple calculation process.

Description

[0001] Traffic signal control system and method [0002]

The present invention relates to an intersection traffic signal control system and method, and more particularly, to a traffic signal control system and method for generating intersection traffic information by analyzing beacon information (Wi-Fi, Bluetooth, etc.) transmitted from a smartphone of a driver, The present invention relates to an intersection traffic signal control system and method capable of minimizing the intersection traffic congestion rate by enabling easy installation and operation by controlling an intersection traffic signal according to traffic information generated after the traffic information is generated.

As the number of vehicles increases and as the roads are expanded, vehicles having different driving directions are crowded at intersections such as downtown, so that an intersection traffic signal is provided to provide a signal according to a predetermined display period.

However, the conventional intersection traffic signal has a structural limitation that can not solve the traffic congestion in a specific time zone and a specific direction because a signal is outputted only by a predetermined display period irrespective of a traffic flow changing in real time.

Since such traffic jam causes direct or indirect damage, various studies are being conducted to smoothly communicate the traffic flow at an intersection.

1 shows a schematic configuration of an intelligent intersection traffic signal control system disclosed in Korean Patent No. 10-1412214 (entitled "Intelligent intersection control system and method").

The intelligent intersection traffic signal control system 100 of FIG. 1 includes a radar sensor unit 110 having a plurality of radar sensors for sensing the state of a vehicle or a person in an intersection area, A traffic information analysis processing unit 120 for analyzing traffic information and determining whether to control a signal of an intersection traffic light signal after receiving traffic information about the state of a vehicle or a person in an intersection area sensed by the unit 110, And an intersection signal controller 130 for receiving the traffic signal adjustment control signal generated for the signal control of the traffic signal in the traffic information analysis processor 120 and adjusting the signal change period of the traffic signal according to the traffic signal adjustment control signal.

The conventional art 1 configured as described above detects a state of a vehicle or a person in an intersection area using a radar sensor unit 110 having a plurality of radar sensors and analyzes the state to generate a traffic signal adjustment control signal , It is possible to prevent traffic congestion in the intersection area as well as prevent traffic accidents by adjusting the signal change period of the traffic signal provided at the intersection according to the generated traffic signal adjustment control signal.

However, since the conventional technique 1 (100) collects the radar signals transmitted and received by the plurality of radar sensors and then analyzes the collected plurality of radar signals to generate traffic information, the installation and operation cost increases, Is complicated and has a high error rate.

2 is a block diagram illustrating a real-time traffic signal generation control system disclosed in Korean Patent No. 10-1211645 (entitled " real-time traffic signal generation control system and real-time traffic signal generation control method using the same).

The real-time traffic signal generation control system 200 of FIG. 2 includes a vehicle sensor 210 for sensing a vehicle passing through each lane at an intersection and generating a vehicle detection signal for each lane, After calculating the number of vehicles passing by each lane from each vehicle detection signal, the traffic volume weight for each lane is calculated by using the number of vehicles passing by each lane, and the signal display time for each lane is calculated using each traffic lane weight A signal controller and distributor 230 for distributing each lane-by-lane signal from information on each lane-by-lane signal display time, a main controller 220 for generating lane-by- And a signal lamp 240 operated at a signal display time controlled by the signal.

Also, in the prior art 2 (200), the main controller 220 is configured to calculate the traffic volume weight value for each lane using the pair comparison matrix analysis method as a variable for each lane passing vehicle number.

The conventional art 2 (200) configured as described above smoothes the traffic flow of the intersection by reflecting the traffic situation in all directions at the intersection and is independently applied to the adjacent intersection so that the vehicle flow of each intersection Can be smoothly performed.

However, the conventional art 2 200 has a disadvantage that the installation and the inspection are complicated and the cost is excessively increased because the vehicle sensor 110 must be installed in each lane of the intersection.

In order to control the traffic signal display time, the conventional art 2 200 analyzes the sensing information transmitted from the plurality of vehicle sensors 110 installed in each lane of the intersection, The number of vehicles is detected and the number of passing vehicles per each lane is used as a variable to calculate a traffic weight value for each lane using a pairwise comparison matrix analysis method, which is complicated and time delayed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an information processing apparatus and method, which can generate traffic information and real-time traffic information using beacon information transmitted from a driver's mobile terminal, It is possible to generate precise and accurate traffic information and real-time traffic information as well as to reduce the installation cost by implementing a separate terminal and a dedicated program, And to provide an intersection traffic signal control system and method.

In addition, another object of the present invention is to provide a traffic equipment analyzing apparatus, which receives beacon information from intersection repeaters of adjacent intersections as well as intersection repeaters of the same intersection, generates real-time communication information including communication information with each adjacent intersection, Provided is an intersection traffic signal control system and method capable of minimizing a congestion rate of an intersection by providing an optimum intersection signal corresponding to a real time traffic situation by changing a present period of time by reflecting the real time traffic information at a predetermined display period .

Further, another object of the present invention is to provide a signal control device for comparing the communication information of each adjacent intersection with a predetermined first setting value (TH1) and a second setting value (TH2) to extend or reduce the signal corresponding to the corresponding intersection And to provide an intersection traffic signal control system and method capable of smoothly flowing an intersection vehicle through a simple calculation process.

Another object of the present invention is to reduce the overall congestion rate of the road by operating the signal control apparatus in association with the adjacent intersection, by changing the present period according to the traffic information of the adjacent intersection so that the present period of each intersection is not individually operated The intersection traffic signal control system and method.

According to an aspect of the present invention, there is provided a mobile terminal comprising: a mobile terminal carried by a vehicle driver and supported by beacon communication; An intersection repeater installed at each intersection to receive beacon information from a mobile terminal of a vehicle traveling at the intersection, match the identification information of the beacon with the received beacon information, and transmit it to the outside; The beacon information is received from the neighboring intersection repeaters, which are the intersection repeaters of the adjacent intersections connected to the current intersection, and the beacon information transmitted from the current intersection repeater, Traffic information analyzing apparatuses for analyzing beacon information transmitted from a current intersection repeater and neighboring intersection repeaters and generating real-time traffic information including traffic information between neighboring intersections; A traffic signal controller installed at each intersection for controlling and managing a signal of an intersection signal light; And a signal control device for generating the generated control information to which the communication information between each adjacent intersection of the real-time traffic information received in the predetermined period of time is applied, when the real-time traffic information is received from the traffic information analyzing device of the same intersection, The signal controller is to determine the present control information generated by the signal control device at the next presentation period.

In the present invention, the signal control device includes a communication interface module for receiving real-time traffic information from the traffic signal analysis device; A memory for storing a predetermined display period; An input / output module for inputting and outputting data with the traffic signal controller; An analysis module for analyzing real-time communication information transmitted through the communication interface module; An emergent control information generation module for applying the analysis data by the analysis module to the current cycle to generate the current control information; And a control module controlling the input / output module to receive the generated control information generated by the traffic signal controller when the generated control information is generated by the generated control information generating module.

In the present invention, the memory further stores a first set value (TH1, Threshold1) defined as a minimum value of a comparison object requiring reduction of a signal and a second set value TH2 defined as a maximum value of a comparison object requiring a signal extension Wherein the analysis module extracts communication information between adjacent adjacent intersections from the inputted real-time communication information, and extracts a predetermined comparison target value from communication information between the adjacent adjacent intersections extracted; A first comparison module for comparing a comparison object value of each adjacent intersection extracted by the data extraction module with the first set value TH1; A second comparison module comparing the comparison target value of each adjacent intersection extracted by the data extraction module with the second set value TH2; The first comparison module determines to reduce a signal corresponding to the neighboring intersection when a neighboring intersection having a comparison target value less than the first set value (TH) is detected, and the second comparison module TH2) is detected, it is preferable that the determination module determines to extend the signal corresponding to the neighboring intersection.

In the present invention, it is preferable that the signal control device is installed in the traffic signal controller in the form of an option board.

In the present invention, it is preferable that the real-time traffic information includes at least one of a traffic volume and a traffic congestion rate, and the comparison target value is a traffic volume or a congestion rate.

In the present invention, the intersection repeater and the traffic signal analyzing apparatus have three or more communication paths, and the traffic signal analyzing apparatus compares the data received through the communication modules of the intersection repeater, Or less; And a verification module for determining that an error has occurred in the data when the difference value of the data is greater than or equal to a preset threshold value and determining the other data to be data in which no error or loss has occurred Do.

According to the present invention having the above-mentioned problems and solutions, traffic information and real-time traffic information are generated using beacon information transmitted from a mobile terminal of a driver, which can be driven without installing a separate program with a high penetration rate, Precise and accurate traffic information and real-time traffic information can be generated. Moreover, it is possible to realize installation without installing a separate terminal and a dedicated program in the vehicle, thereby reducing the installation cost and improving the publicness.

According to the present invention, the traffic equipment analyzer receives beacon information from intersection repeaters of adjacent intersections as well as intersection repeaters of the same intersection to generate real-time communication information including communication information with each adjacent intersection, It is possible to minimize the congestion rate of the intersection by providing the optimal intersection signal corresponding to the real time traffic situation by changing the display period by reflecting the real time traffic information at the predetermined display period.

Further, according to the present invention, the signal control device compares the communication information of each adjacent intersection with the predetermined first set value TH1 and the second set value TH2 to determine extension or contraction of the signal corresponding to the intersection, The intersection vehicle flow can be made smooth by the calculation process.

Further, according to the present invention, the signal control device changes the display period according to the communication information of the adjacent intersection, so that the display period of each intersection is not individually operated but is interlocked with the adjacent intersection so that the overall congestion rate of the road can be reduced .

1 shows a schematic configuration of an intelligent intersection traffic signal control system disclosed in Korean Patent No. 10-1412214 (entitled "Intelligent intersection control system and method").
2 is a block diagram illustrating a real-time traffic signal generation control system disclosed in Korean Patent No. 10-1211645 (entitled " real-time traffic signal generation control system and real-time traffic signal generation control method using the same).
3 is a block diagram illustrating an intersection traffic signal control system according to an embodiment of the present invention.
Fig. 4 is a relationship diagram of Fig. 3. Fig.
5 is a block diagram illustrating the operator mobile terminal of FIG.
FIG. 6 is a block diagram showing the signal control device of FIG. 3. FIG.
Figure 7 is a block diagram illustrating the analysis module of Figure 6;
FIG. 8 is an exemplary diagram for explaining the analysis module of FIG. 7. FIG.
FIG. 9 is a block diagram for explaining data movement in the intersection repeater and the traffic signal analyzing apparatus of FIG. 3. FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 3 is a configuration diagram of an intersection traffic signal control system, which is an embodiment of the present invention, and FIG. 4 is a diagram of the relationship shown in FIG.

The intersection traffic signal control system 1 according to an embodiment of the present invention includes: 1) analyzing and processing beacon information such as Wi-Fi and Bluetooth transmitted from the driver's mobile terminal 8 to generate traffic information; Accordingly, the user can implement a separate terminal and a dedicated program in the vehicle, thereby reducing the installation cost and increasing the detection rate by increasing the publicity, and 2) the traffic of the adjacent intersection connected to the current intersection and the current intersection Information is compared and analyzed to calculate traffic information between neighboring intersections, and traffic signals are controlled according to the calculated traffic information to provide an optimal display period according to real-time traffic conditions to minimize intersection congestion.

2 and 3, the intersection traffic signal control system 1 of the present invention includes a driver mobile terminal 8 and intersection repeaters 5-1, ..., 5-N A traffic information analyzer 3 and a traffic signal controller 9 including a signal control device 91, a communication network 10 and a beacon communication network 20.

The communication network 10 includes a data movement path between the traffic information analyzing apparatus 3, the detection sensors 7, the intersection repeaters 5-1, ..., 5-N and the signal control apparatus 91, A wide area network (WAN), a wired / wireless network, a mobile communication network, and an LTE network.

The beacon network 20 supports data communication between the operator mobile terminals 8 and the intersection repeaters 5. At this time, the beacon communication is preferably either Wi-Fi or Bluetooth.

The driver's mobile terminal 8 is a digital terminal that supports beacon communication and data communication while being carried by a driver of the vehicle. The driver's terminal 8 is a smart phone, a personal digital assistant (PDA), a tablet PC ), A PMP (Personal Multimedia Player), a navigation device, and the like, and is preferably a smartphone having a high penetration rate.

Also, the driver mobile terminal 8 has a beacon communication interface unit, and when entering the beacon communication network 20, transmits the beacon information to the corresponding intersection repeater 5 to request connection.

At this time, the beacon information may include identification information of the corresponding terminal, and the identification information may be a MAC address, but the identification information of the terminal is not limited thereto.

5 is a block diagram illustrating the operator mobile terminal of FIG.

5, the driver mobile terminal 8 includes a monitor 81 provided in a conventional smart phone and displaying contents, a communication interface 82 for transmitting and receiving data through the communication network 10, A beacon communication interface unit 83 connected to the beacon communication network 20 and supporting beacon communication with the intersection repeater 5 in the communication coverage, an input unit 84 receiving characters and symbols from the user, And a control unit 85 for controlling the controlled object.

The intersection repeaters 5-1 to 5-N are installed at each intersection and receive beacon information from the driver's mobile terminal 8 of the vehicle traveling on the intersection via the beacon communication network 20 An access point (AP) for connecting the connected operator mobile terminals to the beacon network 20.

Also, the intersection repeaters 5-1, ..., and 5-N receive beacon information from the operator mobile terminals 8 entering the communication coverage including the beacon antenna.

At this time, the intersection repeaters 5-1, ..., and 5-N provide beacon signals of an open SSID (Service Set Identifier) so that the driver's mobile terminal 8 can communicate with the beacon communication network 20 .

In addition, the intersection repeaters 5-1, ..., 5-N process the beacon information transmitted from the driver's mobile terminal 8 and collected. At this time, processing means processing beacon information so that the traffic information analyzing apparatus 3 can easily perform calculation.

In addition, identification information of the traffic information analyzing apparatus 3 at the intersection and traffic information analyzing apparatuses of neighboring intersections connected to the intersection are stored in the intersection repeaters 5-1, ..., and 5-N, Identification information is stored. At this time, the traffic information analyzing apparatus of the same intersection is referred to as a main traffic information analyzing apparatus, and the traffic information analyzing apparatuses of adjacent intersections are referred to as adjacent traffic information analyzing apparatuses.

The intersection repeaters 5-1 to 5-N transmit sensed information processed by the main traffic information analyzer 3 when the sensing information is processed, Lt; / RTI >

At this time, the intersection repeaters 5-1, ..., and 5-N match the identification information assigned to itself when the detection information is transmitted to the traffic information analyzing apparatus 3, send.

That is, the traffic information analyzing apparatus 3 not only receives the sensing information from the intersection repeater installed at the same intersection assigned thereto, but also receives the sensing information from the intersection repeaters installed at the adjacent intersection.

The traffic information analyzing apparatus 3 receives the sensing information from an already assigned intersection repeater (hereinafter referred to as a main intersection repeater) 5 installed in the intersection, and analyzes the received sensing information to generate traffic information. The traffic information includes traffic volume, congestion rate, detection time, and intersection location information.

Also, the traffic information analyzing apparatus 3 receives sensing information from an intersection repeater (hereinafter referred to as an adjacent intersection repeater) 5 of adjacent intersections, which are intersections connected to the intersection where the vehicle itself is installed.

Also, the traffic information analyzing apparatus 3 analyzes the sensing information transmitted from the main intersection repeater and the sensing information transmitted from the adjacent intersection repeaters by using the preset communication information detection algorithm, and includes traffic information with each of the adjacent intersections And generates real-time communication information.

At this time, the real-time traffic information may include traffic volume, stagnation rate, etc. between the intersection and each adjacent intersection.

When the real-time traffic information is generated, the traffic information analyzing device 3 transmits the real-time traffic information generated through the communication network 10 to the signal control device 91. [

The traffic signal controller 9 controls and manages the current period of the corresponding intersection, and is a technique commonly used in a traffic signal system, and thus a detailed description thereof will be omitted.

In addition, the traffic signal controller 9 is operated by time of day control (TOD Control).

In this case, the time zone control method (TOD control) is defined as a method of controlling the traffic lights according to the time of day and the day of the week according to the same display method and the display length from the predetermined time schedule signal operation plan.

The traffic signal controller 9 is also provided with a signal control device 91.

The signal controller 91 is installed in the form of an option board in the traffic signal controller 9. When the real-time traffic information is received from the traffic information analyzer 3 through the communication network 10, the signal controller 91 analyzes the received real- And generates the generated control information so as to output the current period suitable for the current traffic situation.

Further, the signal control device 91 inputs the generated control information generated by the traffic signal controller 9 when the generated control information is generated.

In other words, the traffic signal controller 9 of the present invention basically controls the intersection signal light according to the predefined display period in the TOD system, and when receiving the present control information from the signal control device 91, And controls the signal of an intersection signal light.

At this time, the generated control information is applied only for one period.

FIG. 6 is a block diagram showing the signal control device of FIG. 3. FIG.

6, the signal control device 91 includes a control module 911, a memory 912, a communication interface module 913, an input / output module 914, an analysis module 915, Module 916 as shown in FIG.

The control module 911 is an OS (Operating System) of the signal control device 91 and is a conventional microprocessor and manages and controls the control objects 912, 913, 914, 915, .

The control module 911 receives the real-time traffic information from the traffic information analyzer 3 through the communication interface module 913, and inputs the received real-time traffic information to the analysis module 915.

Further, the control module 911 inputs the analysis data by the analysis module 915 to the generated control information generation module 916.

The control module 911 controls the input / output module 914 so that the generated control information is input to the traffic signal controller 9 when the generated control information is generated by the generated control information generating module 916.

The memory 912 stores the identification information of the traffic information analyzing apparatus at the intersection and the identification information of each of the traffic information analyzing apparatuses at the adjacent intersections.

In addition, the memory 912 stores a predetermined display period of the time zone control method.

The memory 912 stores a first set value TH1 defined as a minimum value of a comparison object requiring reduction of the signal and a second set value TH2 defined as a maximum value of a comparison target requiring signal extension, And stored. At this time, traffic volume or congestion rate can be applied as a comparison target.

The input / output module 914 inputs and outputs data with the traffic signal controller 9.

Figure 7 is a block diagram illustrating the analysis module of Figure 6;

The analysis module 915 includes a data extraction module 9151, a first comparison module 9153, a second comparison module 9155, and a determination module 9157 as shown in FIG.

The data extraction module 9151 extracts the communication information between the current intersection and each adjacent intersection from the inputted real-time communication information, and extracts a predetermined comparison target value (hereinafter, referred to as each adjacent intersection comparison target value ).

The first comparison module 9153 compares each neighboring intersection comparison target value detected by the data extraction module 9151 with the first set value TH1.

The second comparison module 9155 compares each neighboring intersection comparison target value detected by the data extraction module 9151 with the second set value TH2.

When the first comparison module 9153 detects an adjacent intersection having a comparison target value that is less than the first set value TH, the determination module 9157 determines to reduce the display period corresponding to the neighboring intersection.

When the second comparison module 9155 detects an adjacent intersection having a comparison target value equal to or greater than the second set value TH, the determination module 9157 determines to extend the display period corresponding to the corresponding adjacent intersection.

The analysis data detected by the determination module 9157 is input to the generated control information generation module 916 under the control of the control module 911. [

FIG. 8 is an exemplary diagram for explaining the analysis module of FIG. 7. FIG.

Assuming that the intersection of '1', '2', '3', and '4', which are adjacent intersections, is connected to the '0' intersection as the current intersection as shown in FIG. 8, The comparison module 9153 compares the comparison values of the first, second, third, and fourth intersections with the first set value TH1, and when the second comparison module 9155 compares '1' ',' 2 ',' 3 ', and' 4 'are compared with the second set value TH1.

At this time, the determination module 9157 determines to reduce the signal corresponding to the '1' intersection if the comparison target value of the '1' intersection is less than the first set value TH1, Is greater than or equal to the second set value TH1, it is determined to extend the signal corresponding to the '4' intersection.

The generated control information generation module 916 generates the generated control information that is obtained by applying the analysis data input from the analysis module 915 to the next generation cycle.

The generated control information generated by the generated control information generation module 916 is input to the traffic signal controller 9 through the input / output module 914 under the control of the control module 911. [

FIG. 9 is a block diagram for explaining data movement in the intersection repeater and the traffic signal analyzing apparatus of FIG. 3. FIG.

9, the intersection repeater 5 of the present invention includes a first intersection communication module 51, which is three communication interface modules having different communication methods or different frequency channels, a second intersection communication module 51, 52, and a third intersection communication module 53.

The traffic signal analyzing apparatus 3 also has a first communication communication module 51, a second communication communication module 51, a second communication communication module 51, a second communication communication module 51, Module 31, a second analysis communication module 32, and a third analysis communication module 33.

For convenience of description, the communication interface module of the intersection repeater 5 and the traffic signal analyzing device 3 is three in the present invention. However, the number of the communication interface module is not limited to two, It is of course possible to have four or more.

The first intersection communication module 51 of the intersection repeater 5 and the first analysis communication module 31 of the traffic signal analysis apparatus 3 are connected to the first channel 810 via the first channel 810, The second intersection communication module 52 and the second analysis communication module 32 of the traffic signal analysis apparatus 3 perform data communication through the second channel 820 which is the same communication method or the same frequency channel The third intersection communication module 53 and the third analysis communication module 33 of the traffic signal analyzing apparatus 3 are configured to perform data communication through the third channel 830 which is the same communication method or the same frequency channel do.

At this time, the first, second and third channels 810, 820, and 830 are configured to have different frequencies to provide a multi-path of data communication between the intersection repeater 5 and the traffic signal analyzer 3 .

The traffic signal analyzer 3 further includes a comparison module 35 and a verification module 37.

The comparison module 35 is driven when data is received from the intersection repeater 5 through the first, second, and third analysis communication modules 31, 32, and 33.

Also, the comparison module 35 calculates the difference value of the data transmitted through the first, second, and third analysis communication modules 31, 32, and 33, and then compares the difference value with a predetermined threshold value . The data processed by the comparison module 35 is input to the verification module 37 at this time.

The verification module 37 compares each of the difference values of the data transmitted through the first, second, and third analysis communication modules 31, 32, and 33 to predetermined thresholds. At this time, the threshold value is defined as a maximum difference value that can determine that the two data are the same data.

The verification module 37 determines that an error has occurred in the data when the difference value of the data is equal to or greater than the threshold, and determines that the data having the difference value less than the threshold value is data in which no error or loss occurred.

In other words, the traffic signal analyzing apparatus 3 transmits to the signal control device 91 the data for which no error or loss has occurred by the verification module 37.

That is, when the intersection traffic signal control system 1 according to the embodiment of the present invention is connected to the traffic signal analyzing apparatus 3, the intersection repeater 5 and the traffic signal analyzing apparatus 3 have three Data communication is performed through the channels 810, 820, and 830, so that even if interference or noise occurs in a specific communication method or a specific frequency, or if a malfunction or error occurs in a specific communication module, The data loss and omission can be drastically reduced through communication, thereby increasing the accuracy and reliability of data communication, thereby enabling stable information collection.

10 is an exemplary diagram for explaining an intersection traffic signal control system of the present invention.

That is, the track vehicle communication system 1, which is an embodiment of the present invention, is configured so that when the track vehicle 3 is connected to any of the roadside apparatus 5, the on-board communication apparatus 30 of the track vehicle 3 and the roadside apparatus 5 are configured to perform data communication through the three channels 91, 92, and 93, so that even if interference and noise occur at a specific frequency or a malfunction or error occurs in a specific communication module, It is possible to drastically reduce data loss and omission through data communication, thereby increasing the accuracy and reliability of data communication and ensuring stable running of the tracked vehicle.

As described above, the intersection traffic signal control system 1 according to an embodiment of the present invention generates traffic information and real-time traffic information using beacon information transmitted from the mobile terminal of the driver, which can be driven without installing a separate program, It is possible to generate precise and accurate traffic information and real-time traffic information as well as to reduce the installation cost by implementing a separate terminal and a dedicated program, .

The intersection traffic signal control system (1) of the present invention is characterized in that the traffic equipments analyzer (3) receives beacon information from intersection repeaters of adjacent intersections as well as intersection repeaters of the same intersection and includes communication information with each adjacent intersection Real-time traffic information is generated, and the signal control device 91 changes the display period by reflecting the real-time traffic information at a pre-set display period to provide an optimal intersection signal corresponding to the real-time traffic situation to minimize the congestion rate of the intersection .

The intersection traffic signal control system 1 of the present invention is configured such that the signal control device 91 compares the communication information of each adjacent intersection with the predetermined first set value TH1 and the second set value TH2, By determining the extension or reduction of the corresponding signal, an intersection vehicle flow can be smooth with a simple calculation process.

In the intersection traffic signal control system 1 of the present invention, the signal control device 91 changes the display period according to the communication information of the adjacent intersection so that the present cycle of each intersection is not operated separately but operated in conjunction with the adjacent intersection The overall congestion rate of the road can be reduced.

1: Intersection traffic signal control system 3: Traffic signal analyzer
5: Intersection repeater 8: Driver's mobile terminal
9: traffic signal controller 10: communication network
20: Beacon network 911: Control module
912: memory 913: communication interface module
914: I / O module 915: Analysis module
916: Present Control Information Generation Module 9151: Data Extraction Module
9153: first comparison module 9155: second comparison module
9157: Discrimination module

Claims (6)

A mobile terminal carried by a vehicle driver and supported by beacon communication;
An intersection repeater installed at each intersection to receive beacon information from a mobile terminal of a vehicle traveling at the intersection, match the identification information of the beacon with the received beacon information, and transmit it to the outside;
The beacon information is received from the neighboring intersection repeaters, which are the intersection repeaters of the adjacent intersections connected to the current intersection, and the beacon information transmitted from the current intersection repeater, Traffic information analyzing apparatuses for analyzing beacon information transmitted from a current intersection repeater and neighboring intersection repeaters and generating real-time traffic information including traffic information between neighboring intersections;
A traffic signal controller installed at each intersection for controlling and managing a signal of an intersection signal light;
And a signal control device for generating current control information to which traffic information between neighboring intersections of the real-time traffic information received in the predefined time period is applied, when the real-time traffic information is received from the traffic information analyzing device at the same intersection,
Wherein the traffic signal controller determines the present control information generated by the signal controller as a next cycle. The signal control device according to claim 2, wherein the signal control device
A communication interface module for receiving real-time traffic information from the traffic signal analyzing device;
A memory for storing a predetermined display period;
An input / output module for inputting and outputting data with the traffic signal controller;
An analysis module for analyzing real-time communication information transmitted through the communication interface module;
An emergent control information generation module for applying the analysis data by the analysis module to the current cycle to generate the current control information;
Further comprising a control module for controlling the input / output module to receive the generated control information generated by the traffic signal controller when the generated control information is generated by the generated control information generating module, . The memory according to claim 2, wherein the memory stores a first set value (TH1, Threshold1) defined as a minimum value of a comparison object requiring signal reduction and a second set value TH2 ) Is further stored,
The analysis module
A data extraction module for extracting communication information between adjacent adjacent intersections from the inputted real-time communication information and extracting a predetermined comparison target value from communication information between each adjacent adjacent intersections;
A first comparison module for comparing a comparison object value of each adjacent intersection extracted by the data extraction module with the first set value TH1;
A second comparison module comparing the comparison target value of each adjacent intersection extracted by the data extraction module with the second set value TH2;
The first comparison module determines to reduce a signal corresponding to the neighboring intersection when a neighboring intersection having a comparison target value less than the first set value (TH) is detected, and the second comparison module TH2) is greater than or equal to a predetermined threshold value, a signal corresponding to the neighboring intersection is determined to be extended. The intersection traffic signal control system according to claim 3, wherein the signal control device is installed in the traffic signal controller in the form of an option board. The system according to claim 4, wherein the real-time traffic information includes at least one of a traffic volume and a congestion rate, and the comparison target value is a traffic volume or a congestion ratio. The traffic signal analyzer according to claim 5, wherein the communication path of the intersection repeater and the traffic signal analyzer is three or more,
The traffic signal analyzing apparatus
A comparison module comparing the data received through the communication modules of the intersection repeater and comparing whether the difference value of the data is less than a predetermined threshold value;
And a verification module for determining that an error has occurred in the corresponding data when the comparison module has data of which the difference value of the data is equal to or greater than a preset threshold value and determining the other data to be data in which no error or loss has occurred Intersection traffic signal control system.

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