KR101923720B1 - Pedestrian protection system and operation method thereof - Google Patents

Abstract

The present invention relates to a smart signal lamp installed in the vicinity of a crosswalk, comprising: a wireless communication unit; A walking signal learning unit learning an operation of a walking signal or the like; And a memory for storing data learned through the walking signal learning unit; And a control unit for calculating waiting remaining time information and walking remaining time information based on the learning data stored in the memory and generating and periodically broadcasting a beacon signal including the calculated waiting remaining time information and walking residual time information, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pedestrian protection system,

The present invention relates to a pedestrian protection system in a pedestrian crossing and a method of operation thereof. More particularly, the present invention relates to a pedestrian protection system capable of safely protecting a pedestrian entering a pedestrian crossing using a smart signal lamp and a mobile terminal of a pedestrian, and a method of operating the same.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

Such a terminal has various functions, for example, a multimedia player having a complex function such as photographing or moving picture shooting, reproduction of music or video file, reception of game or broadcasting, .

Mobile terminals implemented in the form of multimedia devices have become a necessity of modern people, and the time used on average by terminal users is also increasing. According to this trend, various incidents / accidents are occurring due to the pedestrians immersed in the mobile terminal. In particular, pedestrians entering pedestrian crossings can face very dangerous situations. Accordingly, there is a need for a method for safely protecting the pedestrian who is immersed in the mobile terminal and crosses the pedestrian crossing.

The present invention is directed to solving the above-mentioned problems and other problems. Another object of the present invention is to provide a pedestrian protection system and method for safely protecting a pedestrian entering a pedestrian crossing using a smart signal lamp and a mobile terminal of a pedestrian.

Another object of the present invention is to provide a smart signal lamp and a method of operating the same which can learn the operation of a gait signal to generate gait signal information related to the safety of a pedestrian and provide the generated gait signal information to a mobile terminal of a pedestrian.

It is another object of the present invention to provide a mobile terminal capable of detecting a position of a pedestrian based on a signal received from one or more smart signals and providing an announcement signal corresponding to the position of the pedestrian, and an operation method thereof.

According to an aspect of the present invention, there is provided a wireless communication apparatus including: a wireless communication unit; A walking signal learning unit learning an operation of a walking signal or the like; A memory for storing data learned through the walking signal learning unit; And a control unit for calculating waiting remaining time information and walking remaining time information based on the learning data stored in the memory and generating and periodically broadcasting a beacon signal including the calculated waiting remaining time information and walking residual time information, And provides a smart signal light including.

More preferably, in the smart signal or the like, the beacon signal further includes at least one of identification information such as a smart signal, position data of a smart signal, distance data between the smart signal and the adjacent smart signal, do.

More preferably, the gait signal learning unit such as the smart signal periodically collects information on the operation time of red or the like from the gait signal and information on the operation time such as green, and learns the collected information .

According to another aspect of the present invention, there is provided a wireless communication apparatus including: a wireless communication unit for receiving a plurality of beacon signals from a plurality of smart signal lamps located around a crosswalk; Calculates distance information between the pedestrian and the plurality of smart signals using the beacon signals, detects relative position information of the pedestrian based on the calculated distance information, and generates a notification signal corresponding to the position of the pedestrian A control unit; And an output unit for outputting a notification signal generated through the control unit.

More preferably, in the mobile terminal, each of the beacon signals includes at least one of identification information of a smart signal, position data of a smart signal, distance data between a smart signal and a neighboring smart signal, waiting remaining time information and walking remaining time information, And institution information.

More preferably, the controller of the smart signal or the like selects a beacon signal having a largest received signal strength indication (RSSI) among a plurality of beacon signals, and analyzes information included in the selected beacon signal parsing).

More preferably, the control unit such as the smart signal outputs a notification signal including information on the waiting time of the pedestrian when the pedestrian is located in the adjacent delivery area of the crosswalk.

More preferably, the control unit such as the smart signal outputs a warning signal warning that the safety line of the crosswalk has been invaded when the pedestrian has invaded the safety line of the crosswalk.

More preferably, the control section of the smart signal or the like calculates the remaining time based on the moving speed of the pedestrian and the remaining distance of the pedestrian when the pedestrian moves on the pedestrian crossing, And when the remaining time is shorter than the calculated remaining time, a notification signal is output to warn that the signal change of the gait signal is imminent.

According to another aspect of the present invention, there is provided a wireless communication system including: a wireless communication unit for receiving a plurality of beacon signals from a plurality of smart signal lamps located around a crosswalk; Calculates distance information between the vehicle and the plurality of smart signals using the beacon signals, detects relative position information of the vehicle based on the calculated distance information, and generates a notification signal corresponding to the position of the vehicle A control unit; And an output unit for outputting a notification signal generated through the control unit.

Effects of the pedestrian protection system and the operation method according to the embodiments of the present invention will be described as follows.

According to at least one embodiment of the present invention, by outputting a notification signal corresponding to the position of a pedestrian using a beacon signal periodically transmitted from a smart signal or the like, pedestrians who enter the mobile terminal and enter the pedestrian crossing, It has the advantage that it can be safely protected.

However, the effects that can be achieved by the pedestrian protection system and the method of operation according to the embodiments of the present invention are not limited to those described above, and other effects not mentioned can be obtained from the following description It will be understood by those of ordinary skill in the art.

Brief Description of the Drawings Fig. 1 is an overall block diagram of a pedestrian protection system according to an embodiment of the present invention; Fig.
2 is a block diagram illustrating a configuration of a mobile terminal according to an exemplary embodiment of the present invention;
3 is a block diagram illustrating a configuration of a smart signal lamp according to an embodiment of the present invention;
4 is a diagram illustrating a structure of a beacon frame according to an embodiment of the present invention;
5 is a flowchart referred to explain operations of a smart signal lamp according to an embodiment of the present invention;
6 is a flowchart referred to explain an operation of a mobile terminal according to an embodiment of the present invention;
7A to 7C are diagrams for explaining announcement signals corresponding to the position of a pedestrian;
8 is a block diagram for explaining a configuration of a vehicle according to an embodiment of the present invention;
9 is a flowchart referred to explain the operation of a vehicle according to an embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. That is, the term 'part' used in the present invention means a hardware component such as software, FPGA or ASIC, and 'part' performs certain roles. However, 'minus' is not limited to software or hardware. The " part " may be configured to be in an addressable storage medium and configured to play back one or more processors. Thus, by way of example, and by no means, the terms " component " or " component " means any combination of components, such as software components, object- oriented software components, class components and task components, Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays and variables. The functions provided in the components and parts may be combined into a smaller number of components and parts or further separated into additional components and parts.

In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The present invention proposes a pedestrian protection system and an operation method thereof that can safely protect a pedestrian entering a pedestrian crossing using a smart signal lamp and a mobile terminal of a pedestrian.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the drawings.

1 is an overall block diagram of a pedestrian protection system according to an embodiment of the present invention.

1, a pedestrian protection system 100 according to the present invention includes one or more smart signal lamps 110 installed on a pedestrian crossing 130, a pedestrian's mobile terminal 120, a pedestrian crossing 130 .

The smart signal lamp 110 may include a walk signal lamp 111, a flood lamp 112, a walking signal terminal (or a beacon terminal, 113), and the like.

The gait signal lamps 111 are provided on both sides of the crosswalk 130 with respect to the road, and may include various kinds of signal lamps as well as general streetlight structures including red light, green light, and the like.

The gait signal lamp 111 alternately operates red light, green light, and the like at a predetermined time interval under the control of a traffic signal controller (not shown) provided in a region adjacent to the crosswalk 130. At this time, the time when the red light is on and the time when the green light is on may be set to be different from each other.

The floodlight 112 is a lighting device capable of illuminating the crosswalk 130 in order to secure the view of the pedestrian at night. Preferably, the floodlight 112 is provided at both side of the crosswalk 100, And can be configured to be independently turned on / off. The floodlight 112 may operate in conjunction with a streetlight or a walk signal, or may operate through the operation of a separate dimmer switch.

The gait signal terminal 113 learns the operation of the gait signal light 111 to generate gait signal information related to the safety of the pedestrian and provides the generated gait signal information to the mobile terminal 120 of the pedestrian . At this time, the walking signal information may include atmospheric remaining time information, walking remaining time information, and the like. In addition, the gait signal information may be periodically broadcasted.

The mobile terminal 120 of the pedestrian can download and install an application (hereinafter referred to as a pedestrian protection application) for protecting a pedestrian entering the pedestrian crossing from an app store, a play store, or the like. In another embodiment, the mobile terminal 120 may be provided with a pedestrian protection application from an external server, another terminal, a storage medium, or the like.

The mobile terminal 120 may execute the pre-installed pedestrian protection application in the background. When the application is executed, the mobile terminal 120 recognizes the position of the pedestrian based on the beacon signals transmitted from one or more smart signal lamps 110, automatically generates a notification signal corresponding to the current position of the pedestrian, And the like. At this time, the notification signal may be output in the form of at least one of a visual signal, an auditory signal, and a tactile signal.

The mobile terminal 120 described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP) slate PCs, tablet PCs, ultrabooks, wearable devices such as smartwatches, smart glasses, and head mounted displays (HMDs) .

The crosswalk 130 is the road shared by the vehicle and the pedestrian. The crosswalk 130 operates according to a constant signaling system to provide a smooth use opportunity between the vehicle and the pedestrian. At least one crosswalk 130 may be provided depending on the type of road. For example, in the case of a three-way or a crossroad, a plurality of crosswalks may be installed on the road. Further, the plurality of crosswalks can be divided into a straight crosswalk having a straight line and a diagonal crosswalk having a diagonal line.

2 is a block diagram illustrating a configuration of a mobile terminal according to an embodiment of the present invention.

2, the mobile terminal 200 may include a wireless communication unit 210, an output unit 220, an input unit 230, a memory 240, a controller 250, and the like. The components shown in FIG. 2 are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.

The wireless communication unit 210 may include a mobile communication module, a short distance communication module, and a wireless Internet module.

The mobile communication module may be a mobile communication module, a mobile communication module, a mobile communication module, a mobile communication module, a mobile communication module, a mobile communication module, (Wideband CDMA), HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), and the like on a mobile communication network.

The short-range communication module is for short range communication, and includes Bluetooth (registered trademark), Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Communication, Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology.

The wireless Internet module refers to a module for wireless Internet access, and may be embedded in the mobile terminal 200 or externally. The wireless Internet module is configured to transmit and receive wireless signals in a communication network according to wireless Internet technologies. Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), and Long Term Evolution-Advanced (LTE-A) And transmits and receives data according to at least one wireless Internet technology in a range including internet technologies not listed above.

The output unit 220 may generate at least one of a display unit, an acoustic output unit, a haptrip module, and a light output unit.

The display unit displays (outputs) information processed by the mobile terminal 200. For example, the display unit may display execution screen information of an application program driven by the mobile terminal 200, or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information. Further, the display unit may have a mutual layer structure with the touch sensor or may be integrally formed, thereby realizing a touch screen.

The audio output unit may receive audio data received from the wireless communication unit 210 or stored in the memory 240 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, or the like. The sound output unit also outputs an acoustic signal related to a function (e.g., a call signal reception sound, a message reception sound, and the like) performed by the mobile terminal 200.

The haptic module generates various tactile effects that the user can feel. A typical example of a haptic effect generated by a haptic module may be vibration. The intensity and pattern of vibration generated in the haptic module can be controlled by the user's selection or the setting of the control unit.

The light output unit outputs a signal for notifying the occurrence of an event using the light source of the mobile terminal 200. Examples of events that occur in the mobile terminal 200 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

The input unit 230 may include a camera or an image input unit for inputting a video signal, a microphone for inputting an audio signal, or an audio input unit, a user input unit (e.g., a touch key) , A mechanical key, etc.).

The memory 240 stores data supporting various functions of the mobile terminal 200. [ The memory 240 may store a plurality of application programs or applications driven by the mobile terminal 200, data for operation of the mobile terminal 200, and commands. In this embodiment, the memory 240 may store a pedestrian protection application.

The control unit 250 controls the operation related to the pedestrian protection application stored in the memory 240 and the overall operation of the mobile terminal 200 in general. In addition, the control unit 250 may control at least one of the above-described components in order to implement various embodiments described below on the mobile terminal 200 according to the present invention.

3 is a block diagram for explaining a configuration of a smart signal lamp according to an embodiment of the present invention.

3, the smart signal lamp 300 may include a walking signal terminal (or a beacon terminal) 310, a walking signal lamp 320, and a flood light 330. The components shown in FIG. 3 are not essential for implementing the smart signal lamp 300, so that the smart signal light described herein may have more or fewer components than those listed above.

The gait terminal 310 may include a wireless communication unit 311, a walking signal learning unit 312, a memory 313, and a control unit 314 as beacon terminals that periodically transmit beacon signals (beacon signals) . The gait signal terminal 310 may be installed outside the smart signal lamp 300 or may be integrally formed with the gait signal lamp 320 or the floodlight 330 to be formed in a single module form.

The wireless communication unit 310 may include a short-range communication module. The short-range communication module is for short range communication, and includes Bluetooth (registered trademark), Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Communication, Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. Hereinafter, in the present embodiment, the Bluetooth communication module may be used as the short distance communication module, but the present invention is not limited thereto.

The Bluetooth communication module provides a communication interface for supporting Bluetooth communication. The Bluetooth communication used in the module is one of the short-range wireless communication technologies and can support data communication between terminals within a radius of 0 to 10 m to 0 to 100 m. Particularly, it is preferable that the Bluetooth communication module mounted on the gait terminal 310 according to the present embodiment uses a Bluetooth 4.0 or higher version equipped with a low-energy technology and a positioning technology.

The gait signal learning unit 312 can perform a function of learning the operation of the gait signal light 320 in the learning mode.

That is, in the learning mode, the walking signal learning unit 312 can periodically collect, from the walking signal lamp 320, information on the operating time such as red, and information on the operating time such as green.

When the operation time information of red or the like having the same value is collected a predetermined number of times, the walking signal learning unit 312 sets (learning) the operation time information having the same value as the normal operation time information such as red, And stores the set (learned) operation time information in the memory 313. [

When the operation time information of green or the like having the same value is collected a predetermined number of times, the walking signal learning unit 312 sets the operation time information having the same value as normal operation time information such as green (learning) And stores the set (learned) operating time information in the memory 313. [

On the other hand, when the operation cycle of the walk signal lamp 320 is changed in accordance with the operation of the traffic signal controller, the walk signal learning unit 312 deletes the operation time information of the walk signal lamp 320 previously stored in the memory 313, The changed operation state of the walking signal lamp 320 can be learned again.

The memory 313 stores data supporting various functions of the smart signal lamp 300. [ The memory 313 may store an application program (an application program or an application) driven by the smart signal lamp 300, data for operation of the smart signal lamp 300, and commands.

The control unit 314 controls the operation related to the application program stored in the memory 313 and the general operation of the smart signal lamp 300 in general. Further, the control unit 314 may control at least one of the above-described components in combination in order to implement various embodiments described below on the smart signal lamp 300 according to the present invention.

The control unit 314 can calculate the waiting time information and the walking time information based on the operating time information of the walking signal lamp 320 stored in the memory 313 when the learning mode is completed. Here, the standby remaining time information is the remaining time information until the gait signal lamp 320 is switched from red to green or the like, and the gait remaining time information is the remaining time information until it is switched to red or the like in green.

The control unit 314 may generate the beacon signal 400 as shown in FIG. 4 and transmit it periodically to the mobile terminals of the pedestrian. The beacon signal 400 may include a preamble field 410, an access address field 420, a payload field 430, and a CRC field 440.

The preamble field 410 has a size of 1 byte (i.e., 8 bits), and is a field used for aligning bit synchronization or frame synchronization in the receiving apparatus of the signal. The Access Address field 420 has a size of 4 bytes (i.e., 32 bits) and is used for a connection address in the link layer. The CRC field 440 has a size of 3 bytes (i.e., 24 bits) and is a field used for detecting a transmission error of a frame.

The payload field 430 has a size of 2 to 60 bytes and includes the device ID information 431, the position data 432, the first distance data 433, the second distance data 444, 445, standby remaining time information 446, walking remaining time information 447, and the like.

The device ID information 431 is identification information of a first smart signal or the like, and the position data (or P data, 432) is position information of a first smart signal. The first distance data (or D1 data, 433) is distance information from the first smart signal to the safety line of a second smart signal located opposite the straight pedestrian crossing, and the third distance data (or D2 data, 434) (Or D3 data, 435) is the distance information from the first smart signal to the safety line of the third smart signal located opposite the diagonal crosswalk, and the fourth distance data As shown in FIG. The position data 432, the first distance data 433, the second distance data 444, and the third distance data 445 have fixed values because the positions of the smart signals and the like are fixed.

The standby remaining time information 436 is residual time information until the gait signal is switched from red to green or the like and the gait remaining time information 437 is remaining time information until the gait signal is switched from green to red or the like.

The gait signal lamp 320 may include a switching unit for turning on / off a power source such as a red light, a green light, and the like, or the red light or green light. The gait signal lamp 320 controls the switching unit according to a control command of the traffic signal controller to alternately operate the red light, the green light, and the like in a predetermined time period. In addition, the gait signal lamp 320 may further include a separate switch for dimming control.

The floodlight 330 may function to output light toward the pedestrian 130 in order to secure the view of the pedestrian at night.

Further, the light projector 330 can change the illuminance of the light emitted toward the crosswalk 130 in accordance with the control command of the control unit 314. [ That is, the light emitting lamp 330 can operate in conjunction with a gait signal. When the gait signal is red, etc., the illuminance of the floodlight 330 is reduced to save energy, and when the gait signal is green, the illuminance of the floodlight 330 can be increased to secure the visibility of the pedestrian.

5 is a flowchart referred to explain the operation of a smart signal lamp according to an embodiment of the present invention.

5, the control unit 314 may enter the operation mode of the smart signal lamp 300 into the pedestrian signal learning mode when a learning mode event occurs (S510). In this case, the learning mode event may be an event in which the operation cycle of the walking signal lamp 320 is changed according to the operation of the traffic signal controller.

The control unit 314 can delete the operation time information of the walk signal lamp 320 previously stored in the memory 313 and learn the changed operation state of the walk signal lamp 320 again when the learning mode event occurs.

In the learning mode, the control unit 314 periodically collects information on the operation time of red or the like from the gait signal light 320 and information on the operation time such as green (step S530).

When the operation time information of red or the like having the same value is collected a predetermined number of times, the control unit 314 transmits the operation time information having the same value through the walking signal learning unit 312 to the normal operation time information And the learned operation time information may be stored in the memory 313 (S540).

When the operation time information of green or the like having the same value is collected a predetermined number of times, the control unit 314 transmits the operation time information having the same value through the walking signal learning unit 312 to the normal operation such as green Time information, and stores the learned operation time information in the memory 313.

The control unit 314 can calculate the waiting time information and the walking time information based on the operating time information (i.e., learning data) of the walking signal lamp 320 stored in the memory 313 when the learning mode is completed S550).

The control unit 314 can generate the beacon signal 400 including the standby remaining time information 446 and the walking remaining time information 447 in operation S560. In addition to the information 446 and 447, the beacon signal includes device ID information 431, position data 432, first distance data 433, second distance data 444, and third distance data 445 ). ≪ / RTI > In addition, the beacon signal may further include information on a public institution, a government office, or the like located in the vicinity of a pedestrian crossing.

The control unit 314 can transmit the beacon signal 400 to the mobile terminal of the pedestrian (S570). At this time, the beacon signal may be broadcast periodically.

6 is a flowchart referred to explain the operation of a mobile terminal according to an embodiment of the present invention.

6, the control unit 250 may execute an application (i.e., a pedestrian protection application) to protect a pedestrian entering a pedestrian crossing according to a user command or the like (S610).

The control unit 250 can execute the application in the background without having to separately display the operation screen of the application on the display unit.

The control unit 250 may periodically receive a plurality of beacon signals from a plurality of smart signal lamps (i.e., the beacon terminal 310) located near the pedestrian crossing (S620). At this time, each of the beacon signals includes device ID information 431, position data 432, first distance data 433, second distance data 444, third distance data 445, (446), and gait remaining time information (447).

The control unit 250 may use only a necessary beacon signal among a plurality of beacon signals. In addition, the controller 250 may use only necessary data among a plurality of data included in the beacon signal.

The control unit 250 may select a beacon signal having a largest received signal strength indication (RSSI) among a plurality of beacon signals and may analyze the information included in the beacon signal at step S630. This is for selecting and analyzing the beacon signal transmitted from the smart signal lamp 300 installed on the pedestrian crossing that a pedestrian wishes to cross. The beacon signal transmitted from the smart signal lamp 300 has the greatest intensity because the distance between the smart signal light installed on the pedestrian crossing that the pedestrian wishing to cross and the mobile terminal of the pedestrian is the shortest when there is a plurality of pedestrian crosswalks.

In addition, the control unit 250 may measure the distance information between the mobile terminal 200 of the pedestrian and the plurality of smart signal lamps 300 based on the plurality of beacon signals periodically received (S640). At this time, the distance information between the mobile terminal 200 and the smart signal lamp 300 can be calculated through Equation (1) below, but is not limited thereto.

Here, TxPower is the transmission power of the beacon signal, and RSSI is The received signal strength of the beacon signal.

The controller 250 may detect the relative position information of the pedestrian using the distance information calculated through Equation (1) (S650). At this time, the control unit 250 can detect the relative position information of the pedestrian using the already known position detection algorithm.

Meanwhile, the present embodiment illustrates that the above-described step 630 is performed before the above-described step 640, but it is not limited thereto, and it will be apparent to those skilled in the art that the present invention can be carried out after step 650.

The control unit 250 generates a notification signal corresponding to the position of the pedestrian and outputs the generated notification signal (S660, S670). At this time, the notification signal may be output in the form of at least one of an audible signal, a visual signal, and a tactile signal. The notification signals corresponding to the position of the pedestrian will be described in detail with reference to FIGS. 7A to 7C.

7A to 7C are views showing an example of a road on which the first to fourth crosswalks are installed. 7A and 7C, the first smart signal lamps A1 and 711 and the second smart signal lamps D1 and 712 are disposed on both sides of the first crosswalk 710 and the second crosswalk 720 is disposed on both sides of the first crosswalk 710, The third smart signal lamps A2 and 721 and the fourth smart signal lamps B2 and 722 are disposed on both sides of the third crosswalk 730 and the fifth smart signal lamps B1 and 731 and the sixth smart signal lamps B2 and 722 are disposed on both sides of the third crosswalk 730, The smart signal lamps C1 and 732 are arranged and the seventh smart signal lamps C2 and 741 and the eighth smart signal lamps D2 and 742 are disposed on both sides of the fourth crosswalk 740. [

The mobile terminal 200 determines whether the pedestrian is in the A zone 750 or the A zone 750 based on the intensity of the beacon signals transmitted from the first to eighth smart signal lamps 711, 712, 721, 722, 731, 732, 741, The B zone 760, the C zone 770, and the D zone 780, as shown in FIG.

7A, when the pedestrian 790 is located in the A zone 750 and the walk signal lamp is red, etc., the control unit 250 determines whether or not the beacon signal of the first smart signal lamps A1, 1 < / RTI > information about the walking waiting time of the first crosswalk 710. [

The control unit 250 may output a second announcement signal including information on the walking wait time of the second pedestrian crossing 720 based on the beacon signal of the third smart signal lamps A2 and 721.

On the other hand, when the pedestrian 790 is located in the A zone 750 and the gait signal is green or the like, the control unit 250 controls the first crosswalk 710 based on the beacon signal of the first smart signal lamps A1 and 711, And a third notification signal including information on the remaining walking time of the vehicle.

In addition, the controller 250 may output a fourth notification signal including information on the walking remaining time of the second pedestrian crossing 720 based on the beacon signal of the third smart signal lamps A2 and 721.

Accordingly, the pedestrian 790 can predict the operation of the first and third walking signals and the like on the basis of the first to fourth notification signals output from the mobile terminal 200.

7B, when the pedestrian 790 waits in front of the first pedestrian crossing 710, the control unit 250 controls the beacon signal of the first smart signal lamps A1 and 711 and the second smart signal light D1, 712), the position information of the pedestrian 790 can be periodically detected.

The control unit 250 compares the first distance data included in the beacon signal of the first smart traffic lights A1 and 711 (i.e., the distance from the first smart traffic light to the safety line of the second smart traffic light) to the position of the pedestrian 790 Based on the information, it is possible to output a warning signal regarding the safety line invasion. That is, if the distance between the pedestrian 790 and the second smart signal lamps D1 and 712 is smaller than the value of the first distance data, the control unit 250 determines that the pedestrian 790 It can output a warning signal to warn that it has been invaded.

In addition, the controller 250 may output a notification signal including information on a walking waiting time of the first pedestrian crossing 710 based on the beacon signal of the first smart signal lamps A1 and 711.

7C, when the pedestrian 790 moves from the A zone 750 to the D zone 780 through the first crosswalk 710, the control unit 250 controls the first smart traffic light A1 and 711 and the beacon signals of the second smart signals D1 and 712 can be used to periodically detect the position information and the moving speed of the pedestrian 790. [

The control unit 250 calculates the remaining time required based on the moving speed of the pedestrian and the remaining distance of the first pedestrian crossing 710 and outputs the calculated remaining time and the first or second smart signal light 711, Of the beacon signal included in the beacon signal can be compared with each other. If the calculated remaining time is longer than the walking remaining time, the controller 250 may output a warning signal to warn that the remaining walking time is short.

Similarly, when the pedestrian 790 is located in any one of the B zone 750 to the D zone 780, the control unit 250 outputs the notification signals corresponding to the position of the pedestrian using the above-described methods can do.

Referring to FIG. 6 again, the controller 250 may generate a control signal for interlocking with the safety facility installed in the vicinity of the pedestrian crossing and transmit the control signal to the corresponding device (S680). That is, the control unit 250 not only outputs a predetermined notification signal for the safety of the pedestrian, but also can control the safety facility. At this time, the safety facility includes a gaze guidance lamp, a preliminary signal lamp, a floor signal lamp, a floodlight, a camera for monitoring a violation of a lane on a pedestrian crossing, and a storage device for storing a photographed image.

For example, when the pedestrian ignores the pedestrian crossing signal and the pedestrian illegally strolls, the control unit 250 not only notifies the pedestrian of the fact that the pedestrian crosses the pedestrian crossing at a predetermined cycle, but also improves the awareness of crossing the vehicle .

The control unit 250 may repeatedly perform the operations of steps 610 to 680 until the pedestrian protection application is terminated (S690).

It will be apparent to those skilled in the art that the technical ideas applied to such a pedestrian protection system can be extended to vehicles.

8 is a block diagram for explaining a configuration of a vehicle according to an embodiment of the present invention.

8, the vehicle 800 includes a communication unit 810, an input unit 820, a sensing unit 830, an output unit 840, a vehicle driving unit 850, a memory 860, an interface unit 870, A control unit 880, and a power supply unit 890.

The communication unit 810 is a unit that enables communication between the vehicle 800 and the mobile terminal, between the vehicle 800 and the wearable device, between the vehicle 800 and the external server, or between the vehicle 800 and another vehicle The above modules may be included.

The communication unit 810 may include a broadcast receiving module 811, a wireless Internet module 812, a local area communication module 813, a location information module 814, and the like.

The broadcast receiving module 811 receives broadcast signals or broadcast-related information from an external broadcast management server through a broadcast channel.

The wireless Internet module 812 refers to a module for wireless Internet access, and may be embedded in the vehicle 100 or externally. The wireless Internet module 812 is configured to transmit and receive wireless signals in a communication network according to wireless Internet technologies.

The short-range communication module 813 is for short-range communication, and may be Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB) It is possible to support near-field communication using at least one of Near Field Communication (NFC), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct and Wireless USB (Universal Serial Bus)

The position information module 814 is a module for obtaining the position of the vehicle 800, and a representative example thereof is a GPS module. The GPS module can acquire the position of the vehicle 800 using a signal transmitted from the GPS satellite.

The input unit 820 may include a driving operation unit 821, a camera 822, a microphone 823, and a user input unit 824. The driving operation means 821 receives a user input for driving the vehicle 800. [ The camera 822 can process still images or moving images obtained by an image sensor (e.g., CMOS or CCD).

The microphone 823 can process an external acoustic signal into electrical data. The processed data can be utilized variously according to functions performed in the vehicle 800. The user input unit 824 is for receiving information from a user. When information is input through the user input unit 824, the control unit 880 can control the operation of the vehicle 800 to correspond to the input information.

The sensing unit 830 senses a signal relating to the running of the vehicle 800 or the like. To this end, the sensing unit 830 may include a sensor, a wheel sensor, a velocity sensor, a tilt sensor, a weight sensor, a heading sensor, a yaw sensor, a gyro sensor, , A position module, a vehicle forward / reverse sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor by steering wheel rotation, a vehicle internal temperature sensor, an internal humidity sensor, an ultrasonic sensor, a radar, .

The output unit 840 is for outputting information processed by the control unit 880 and may include a display unit 841, an acoustic output unit 842, and a haptic output unit 843. [

The display unit 841 can display information processed by the control unit 880. [ For example, the display portion 841 can display the vehicle-related information. Here, the vehicle-related information may include vehicle control information for direct control of the vehicle, or vehicle driving assistance information for a driving guide to the vehicle driver. In addition, the display unit 841 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen.

The audio output unit 842 converts an electric signal from the control unit 880 into an audio signal and outputs the audio signal. For this purpose, the sound output unit 842 may include a speaker or the like. The haptic output unit 843 generates a tactile output. For example, the haptic output section 843 may operate to vibrate the steering wheel, the seat belt, and the seat so that the user can recognize the output.

The vehicle drive unit 850 can control the operation of various devices of the vehicle. The vehicle driving unit 850 may include a power source driving unit 851, a steering driving unit 852, a brake driving unit 853, a lamp driving unit 854, an air conditioning driving unit 855, and the like.

The power source driving section 851 can perform electronic control on the power source in the vehicle 800. [ The steering driver 852 may perform electronic control over the steering apparatus in the vehicle 800. [ Thus, the traveling direction of the vehicle can be changed.

The brake driver 853 can perform electronic control of the brake apparatus in the vehicle 800. [ For example, it is possible to reduce the speed of the vehicle 800 by controlling the operation of the brakes disposed on the wheels.

The lamp driving unit 854 can control the turn-on / turn-off of the lamps disposed inside and outside the vehicle. Also, the intensity, direction, etc. of the light of the lamp can be controlled. The air conditioning driving section 855 can perform electronic control on the air conditioner in the vehicle 800. [

The memory 860 is electrically connected to the control unit 880. The memory 860 can store basic data for the unit, control data for controlling the operation of the unit, and input / output data. The memory 860 may be, in hardware, various storage media such as ROM, RAM, EPROM, flash drive, hard drive, and the like.

The interface unit 870 may serve as a pathway to various kinds of external devices connected to the vehicle 800. For example, the interface unit 870 may include a port that can be connected to the mobile terminal or the wearable device, and may be connected to the mobile terminal or the wearable device through the port.

The control unit 880 can control the overall operation of each unit in the vehicle 800. [ Here, the controller 880 may be referred to as an ECU (Electronic Control Unit).

The controller 880 may be implemented in hardware as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs) processors, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions.

The power supply unit 890 can supply power necessary for the operation of each component under the control of the control unit 880. [ In particular, the power supply unit 890 can receive power from a battery or the like in the vehicle.

9 is a flowchart referred to explain the operation of the vehicle according to an embodiment of the present invention.

9, the control unit 880 may execute an application (i.e., a pedestrian protection application) to protect a pedestrian entering a pedestrian crossing according to a user command or the like (S910).

The control unit 880 can execute the application in the background without having to separately display the operation screen of the application on the display unit 841. [

The control unit 880 may periodically receive a plurality of beacon signals from a plurality of smart signal lamps (i.e., the beacon terminal 310) located in the vicinity of the pedestrian crossing (S920). At this time, each of the beacon signals includes device ID information 431, position data 432, first distance data 433, second distance data 444, third distance data 445, (446), and gait remaining time information (447). In addition, the smart traffic light may include a traffic signal as well as a walking traffic light.

The control unit 880 can use only a necessary beacon signal among a plurality of beacon signals. Also, the control unit 880 can use only necessary data among a plurality of data included in the beacon signal.

The controller 880 may select the beacon signal having the largest received signal strength indication (RSSI) among the plurality of beacon signals, and may analyze the information included in the beacon signal (S930). This is for selecting and analyzing the beacon signal transmitted from the nearest smart signal lamp 300 located in the traveling direction of the vehicle 800.

In addition, the controller 880 may measure distance information between the vehicle 800 and the plurality of smart signal lamps 300 based on the plurality of beacon signals periodically received (S940). At this time, the distance information between the vehicle 800 and the smart signal lamp 300 can be calculated through Equation (1), but is not limited thereto.

The control unit 880 can detect the relative position information of the vehicle 800 using the distance information between the vehicle 800 and the smart signal lights 300 in operation S950. At this time, the control unit 880 can detect the relative position information of the vehicle 800 using a known position detection algorithm.

The control unit 880 generates a notification signal corresponding to the position of the vehicle 800 and outputs the generated notification signal (S960, S970). At this time, the notification signal may be output in the form of at least one of an audible signal, a visual signal, and a tactile signal.

For example, when the vehicle 800 is within a predetermined distance from the pedestrian crossing, the control unit 880 may output a warning signal to warn the driver of the vehicle, even though the walking light is green. In addition, when the vehicle 800 enters the vehicle within a certain distance from the pedestrian crossing, the control unit 880 may output a warning signal to warn the driver of the vehicle, even though the vehicle signal lamp is red.

In addition, when the vehicle 800 enters the crosswalk although the walk signal is green, the control unit 880 outputs a warning signal and can rapidly bump the vehicle 800. Likewise, when the vehicle 800 enters the crosswalk, the control unit 880 can quickly bump the vehicle 800 while outputting a warning signal, even though the vehicle signal lamp is red.

The control unit 880 can repeatedly perform the operations of steps 910 to 970 until the pedestrian protection application is terminated (S980).

Meanwhile, in another embodiment, the control unit 880 can output a notification signal in cooperation with a mobile terminal of a pedestrian as well as a smart signal.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit 180 of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: pedestrian protection system 110: smart signal light
120: a pedestrian's mobile terminal 130: a pedestrian crossing

Claims (8)

A wireless communication unit;
A walking signal learning unit learning an operation of a walking signal or the like; And
A memory for storing data learned through the walking signal learning unit; And
Calculates a waiting time information and walking remaining time information based on the learning data stored in the memory, and generates and periodically broadcasts a beacon signal including the calculated waiting time information and the walking time information and,
The gait signal learning unit periodically collects and learns information about an operation time of red or the like from the gait signal and information about an operation time such as green respectively,
And deletes the learning data stored in the memory when the operation cycle of the walk signal is changed according to the operation of the traffic signal controller, and re-learns the changed operation state of the walk signal. The method according to claim 1,
The beacon signal further includes at least one of identification information such as a smart signal, position data of a smart signal, distance data between a smart signal and a neighboring smart signal, and adjacent public institution information. The method according to claim 1,
Wherein the walking signal learning unit learns the operation time information having the same value as the normal operation time information of red when the operation time information of red or the like having the same value is collected by a predetermined number of times,
Wherein the operation time information having the same value is learned as normal operation time information such as green when operation time information of green having the same value is collected a predetermined number of times. A wireless communication unit for receiving a plurality of beacon signals from a plurality of smart signal lamps located around the crosswalk;
Calculating distance information between the pedestrian and the plurality of smart signals using the beacon signals, detecting relative position information of the pedestrian based on the calculated distance information, generating different notification signals according to the position of the pedestrian, ; And
And an output unit for outputting a notification signal generated through the control unit,
Wherein each of the beacon signals includes position data of a smart signal or the like, distance data between a smart signal and a neighboring smart signal, standby remaining time information, and walking residual time information. 5. The method of claim 4,
Wherein the controller selects a beacon signal having a largest received signal strength indication (RSSI) among the plurality of beacon signals, and parses information included in the selected beacon signal. 5. The method of claim 4,
The control unit causes a first announcement signal including information on the standby time of the pedestrian to be outputted when the pedestrian is located in the adjacent delivery area of the pedestrian crossing,
When the pedestrian has invaded the safety line of the crosswalk, outputs a second announcement signal warning that the safety line of the crosswalk has been invaded. 5. The method of claim 4,
Wherein the control unit calculates the remaining time required based on the moving speed of the pedestrian and the remaining distance of the pedestrian when the pedestrian moves on the pedestrian crossing, And when it is smaller than the remaining required time, a warning signal is output to warn that the signal change of the walking signal or the like is imminent. 5. The method of claim 4,
Wherein the control unit generates a control signal for interlocking with a safety facility installed in the vicinity of the crosswalk and transmits the control signal to the safety facility.

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