JP2009294877A - Traffic signal control system, traffic signal control method and portable terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traffic signal control system that enables a pedestrian's safe passage through a crosswalk and short signal waiting time by means of a user portable terminal at low power consumption. <P>SOLUTION: The traffic signal control system 1 includes a pedestrian's cellphone 100 and a control device 200 for controlling a pedestrian signal 10. The control device 200 includes a wireless LAN communication part 202 for establishing wireless communication with the cellphone 100, a transmission part 214 for transmitting a notification signal indicating whether the signal 10 is red or blue to the cellphone 100, and a signal control part 234 changing the signal 10 from red to blue in response to a control signal to change red to blue which is received from the cellphone 100. The cellphone 100 includes a wireless LAN communication part 102 for establishing wireless communication with the control device 200, and a transmission part 112 for determining whether the signal 10 is red or blue according to the notification signal received from the control device 200, and transmitting the control signal to the control device 200 if the signal 10 is red or, if it is blue, refraining from transmission. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a traffic signal control system, a traffic signal control method, and a portable terminal device, and more particularly to a traffic signal control system, a traffic signal control method, and a portable terminal device using a portable terminal device provided with wireless communication means. .

  In recent years, with the spread of mobile terminal devices, the age of users from children to elderly people has expanded, people operating mobile phones in the city, people with physical disabilities, and elderly people crossing the road while driving The issues that come into contact with are covered in the press.

  As a signal guidance system that can cross a pedestrian crossing with peace of mind such as a visually impaired person, there is one described in Patent Document 1. The traffic signal system described in the document applies short-range radio, detects that a user terminal carried by a pedestrian has approached a pedestrian traffic signal, and then the pedestrian traffic signal is controlled by the user terminal from the user terminal. When the traffic information is received, the pedestrian traffic light is turned into a green light.

In addition, the traffic control system described in Patent Document 2 detects a pedestrian crossing and a vehicle intersection passing by a detector provided in the vicinity of the pedestrian crossing and the intersection, and when the pedestrian crosses the pedestrian crossing, And the color of the traffic light when passing the intersection of the car is changed. In addition, it is described that a portable terminal is mounted on a registered vehicle (emergency vehicle, etc.), a traffic light state change request is transmitted to a signal system via a network, and the traffic light is changed to blue by transmitting via a network such as the Internet. Yes.
JP 2002-279594 A Japanese Patent Application Laid-Open No. 2004-287962

However, the prior art described in the above literature has room for improvement in the following points.
For example, in the prior art described in the above-mentioned document, a broadcast signal indicating the presence of a traffic signal is transmitted to the surroundings via the traffic signal side Bluetooth device, and in this state, the user is within a predetermined distance range in which wireless communication by Bluetooth can be performed from the traffic signal. When reaching the vicinity of the sidewalk, the user terminal receives the broadcast signal, and communication between the user terminal and the traffic light is started. And since communication between a user terminal and a signal apparatus is always continued regardless of the state (red or blue) of the signal apparatus, the power consumption of the user terminal is increased.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to change a pedestrian traffic light to a green signal with the approach of a pedestrian using a user's mobile terminal device, so that a pedestrian is safe. It is possible to provide a traffic signal control system, a traffic signal control method, and a mobile terminal device that can cross a pedestrian crossing, reduce signal waiting time, and reduce power consumption of a user's mobile terminal device.

According to the traffic signal control system of the present invention, in a traffic signal control system comprising a user portable terminal carried by a pedestrian and a control device for controlling a pedestrian traffic light,
The controller is
Wireless communication means for wirelessly communicating with the user portable terminal;
Discriminating means for discriminating whether the pedestrian traffic light is red or blue;
A transmission means for transmitting a signal notification signal indicating a determination result by the determination means to the user portable terminal existing in the vicinity of the pedestrian traffic light by the wireless communication means;
From the user portable terminal, control signal receiving means for receiving a traffic signal control signal to be a control request for changing a red signal to a blue signal by the wireless communication means,
In response to the traffic light control signal, control means for changing the pedestrian traffic light from red to blue,
The user portable terminal is
Wireless communication means for wirelessly communicating with the control device;
Notification signal receiving means for receiving the signal notification signal from the control device by the wireless communication means;
Determination means for determining whether the pedestrian traffic light is red or blue based on the signal notification signal received by the notification signal receiving means;
When the determination means determines that the pedestrian traffic light is red, the wireless communication means transmits the traffic signal control signal to the control device, and the pedestrian traffic light is blue by the determination means. Control signal transmitting means that does not transmit the traffic light control signal to the control device.

According to the traffic signal control method of the present invention, a traffic signal control method for controlling a pedestrian traffic light by a control device that wirelessly communicates with a user portable terminal carried by a pedestrian,
A procedure for the controller to determine whether the pedestrian traffic light is red or blue;
A procedure in which the control device transmits a signal notification signal indicating a determination result determined in the determined procedure to the user portable terminal existing in the vicinity of the pedestrian traffic light by the wireless communication;
The user portable terminal receives the signal notification signal from the control device by the wireless communication;
A procedure for determining whether the pedestrian traffic light is red or blue based on the signal notification signal received by the user portable terminal in the procedure of receiving the signal notification signal;
When the user portable terminal determines that the pedestrian traffic light is red, the user portable terminal transmits a traffic signal control signal that is a control request for changing a red signal to a blue signal to the control device by the wireless communication, and the walking When it is determined that the traffic signal for the passenger is blue, a procedure for not transmitting the traffic signal control signal to the control device;
The control device receives the signal control signal from the user portable terminal by the wireless communication,
A step of changing the pedestrian traffic light from red to blue in response to the traffic light control signal received by the control device in the procedure of receiving the traffic light control signal.

According to the mobile terminal device of the present invention, a mobile terminal device carried by a pedestrian,
Wireless communication means for wireless communication with a control device for controlling a pedestrian traffic light near the pedestrian;
A notification signal receiving means for receiving, by the wireless communication means, a signal notification signal including a result of determining whether the pedestrian traffic light is red or blue from the control device;
Determination means for determining whether the pedestrian traffic light is red or blue based on the signal notification signal received by the notification signal receiving means;
When the determination means determines that the pedestrian traffic light is red, the wireless communication means transmits a traffic signal control signal that is a control request to change the red signal to a blue signal to the control device, and the determination And a control signal transmitting unit that does not transmit the traffic signal control signal to the control device when the means determines that the pedestrian traffic light is blue.

  It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

  The various components of the present invention do not necessarily have to be independent of each other. A plurality of components are formed as a single member, and a single component is formed of a plurality of members. It may be that a certain component is a part of another component, a part of a certain component overlaps with a part of another component, or the like.

  Moreover, although the several procedure is described in order in the traffic signal control method and computer program of this invention, the order of the description does not limit the order which performs a several procedure. For this reason, when implementing the data processing method and computer program of this invention, the order of the several procedure can be changed in the range which does not interfere in content.

  Further, the traffic signal control method and the computer program of the present invention are not limited to being executed at different timings. For this reason, another procedure may occur during the execution of a certain procedure, or some or all of the execution timing of a certain procedure and the execution timing of another procedure may overlap.

  According to the present invention, since the pedestrian traffic light can be changed to a green light with the approach of the pedestrian using the user's mobile terminal device, the pedestrian can safely cross the pedestrian crossing, can reduce the signal waiting time, A traffic signal control system, a traffic signal control method, and a mobile terminal device that can reduce power consumption of a user's mobile terminal device are provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same reference numerals are given to the same components, and the description will be omitted as appropriate.

  FIG. 1 is a functional block diagram showing a configuration of a traffic signal control system 1 according to an embodiment of the present invention. The traffic signal control system 1 of the present embodiment is a traffic signal control system 1 including a user portable terminal (mobile phone 100) carried by a pedestrian and a control device 200 that controls the pedestrian traffic signal 10. The apparatus 200 includes a wireless communication unit (wireless LAN (Local Area Network) communication unit 202) that wirelessly communicates with a user portable terminal (mobile phone 100), and a determination unit 212 that determines whether the pedestrian traffic light 10 is red or blue. The wireless communication unit (wireless LAN communication unit 202) transmits a signal notification signal indicating the determination result by the determination unit 212 to the user portable terminal (mobile phone 100) existing in the vicinity of the pedestrian traffic light 10 The wireless communication unit (wireless LA) transmits a traffic signal control signal that is a control request for changing the red signal to the blue signal from the unit 214 and the user portable terminal (mobile phone 100). A control signal receiving unit 232 that is received by the communication unit 202), and a traffic signal control unit 234 that changes the pedestrian traffic signal 10 from red to blue in response to the traffic signal control signal. ) Is a wireless communication unit (wireless LAN communication unit 102) that wirelessly communicates with the control device 200, and a notification signal reception unit (reception unit) that receives a signal notification signal from the control device 200 via the wireless communication unit (wireless LAN communication unit 102). 104) and a determination unit 106 that determines whether the pedestrian traffic light 10 is red or blue based on the signal notification signal received by the reception unit 104, and the determination unit 106 determines that the pedestrian traffic signal 10 is red. In this case, a traffic signal control signal is transmitted to the control device 200 by the wireless communication unit (wireless LAN communication unit 102), and the pedestrian traffic light 10 is blue by the determination unit 106. If it is determined that includes the control unit 200 a control signal transmitting unit not to transmit a traffic signal control signal (transmission unit 112), the.

  With this configuration, the user mobile terminal (mobile phone 100) of the present embodiment can control the pedestrian traffic light 10 near the user mobile terminal (mobile phone 100) in addition to the normal control of the pedestrian traffic light 10. The pedestrian traffic light 10 near the pedestrian who is the user of the user portable terminal (mobile phone 100) can be changed from red to blue according to the instruction from the user portable terminal (mobile phone 100). .

  The user portable terminal of the traffic signal control system 1 is a cellular phone in this embodiment, but may be a PDA (Personal Digital Assistants), a PHS (Personal Handyphone System), a game machine, or the like. Further, the control device 200 of the present embodiment can be included in the pedestrian traffic light 10 or can be externally attached, and includes a computer including a CPU (Central Processing Unit, not shown). In each of the following drawings, the configuration of parts not related to the essence of the present invention is omitted. For example, a call function unit, a mail transmission / reception unit, a web access unit of the mobile phone 100, a CPU of the control device 200, Memory (ROM (Read Only Memory), RAM (Random Access Memory)) and the like are not shown.

  Each component of the traffic signal control system 1 includes a CPU of a computer, a memory, a program for realizing the components of this figure loaded in the memory, a storage unit such as a hard disk for storing the program, and a network connection It is realized by any combination of hardware and software centering on the interface. It will be understood by those skilled in the art that there are various modifications to the implementation method and apparatus. Each drawing described below shows a functional unit block, not a hardware unit configuration.

  Further, in the traffic signal control system 1 of the present embodiment, the control device 200 changes the pedestrian traffic light 10 from red to blue by the traffic signal control signal received by the traffic signal control unit 234 from one user portable terminal (mobile phone 100). And a transmission unit 214 that transmits a green signal notification signal indicating that control for changing to blue has already started to another user portable terminal (mobile phone 100).

  According to this configuration, the control for changing the pedestrian traffic light 10 to blue is already started by a request from one user portable terminal (cell phone 100), and other user portable terminals (cell phone 100). Therefore, even if it is a red light at present, it has already been determined that the control is changed from one user portable terminal (mobile phone 100) to a green signal, and after a predetermined time T (seconds), the signal is changed to a green signal. If there is a change request, it is possible to prevent duplicate change requests from other user portable terminals (mobile phone 100).

  Further, in the traffic signal control system 1 of the present embodiment, the user portable terminal (mobile phone 100) receives the green signal notification signal from the control device 200, and when receiving the green signal notification signal, the control signal transmission unit Means for inhibiting the transmission unit 112 from transmitting a traffic signal control signal.

  According to this configuration, when the control to change to blue has already started, it is possible to prevent the traffic signal control signal from being duplicately transmitted from the mobile phone 100 of another user, and unnecessary communication is not required. The power consumption of the user's mobile phone 100 can be reduced.

  Furthermore, the traffic signal control system 1 of the present embodiment can include a recording unit 114 that records a communication history between the user portable terminal (mobile phone 100) and the control device 200 in the history storage unit 116. According to this configuration, the access time of the user portable terminal (mobile phone 100), the identification information, the lighting control history of each traffic light, and the like are recorded in the communication history, so that as evidence when an accident occurs at an intersection. Can be used.

  Specifically, the traffic signal control system 1 includes a mobile phone 100 of a user who becomes a pedestrian of the pedestrian traffic light 10 and a control device 200 that controls the pedestrian traffic light 10.

  The mobile phone 100 includes a wireless LAN communication unit 102, a reception unit 104, a determination unit 106, a reception unit 108, an authentication unit 110, a transmission unit 112, a recording unit 114, and a history storage unit (in the figure, “ ”116”, a terminal ID storage unit (shown as “terminal ID” in the figure) 120, and a transmission unit 122.

FIG. 2 is a block diagram showing a configuration of the mobile phone 100 of the traffic signal control system 1 of the present embodiment.
The mobile phone 100 includes a CPU 20, a ROM 22, a RAM 24, a wireless LAN communication unit 26, a wireless LAN antenna 28, an operation unit 30, an operation reception unit 32, a display unit 34, a display control unit 36, A mobile communication unit 38 and a mobile communication antenna 39 are provided.

  The CPU 20 is connected to each element of the mobile phone 100 via the bus 40 and controls the entire mobile phone 100 together with each element. The ROM 22 stores programs executed by the CPU 20 and various data. The RAM 24 includes a work area when the CPU 20 executes a program, a buffer area for data transmitted and received by the mobile phone 100, and the like, and temporarily stores data.

  The wireless LAN communication unit 26 performs wireless communication with a device on a LAN (not shown, Local Area Network) via a wireless LAN antenna 28. The operation unit 30 includes operation keys, switches, buttons, jog dials, pads, and the like, and is operated by the user of the mobile phone 100. The operation reception unit 32 receives an operation performed by the user using the operation unit 30 and notifies the CPU 20 of the operation. The display unit 34 is a liquid crystal display, a plasma display, an organic EL display, or the like, and displays various screens. The display control unit 36 causes the display unit 34 to display various screens in accordance with instructions from the CPU 20.

  The mobile communication unit 38 communicates by connecting to a mobile phone network (not shown) via a base station (not shown) via a mobile communication antenna 39.

  Returning to FIG. 1, the wireless LAN communication unit 102 (wireless LAN communication unit 26 in FIG. 2) connects to a LAN (not shown) and performs wireless LAN communication with the control device 200 on the LAN. In recent years, mobile phones 100 have become more sophisticated, and those equipped with a wireless LAN function are on the market. In the present embodiment, the mobile phone 100 equipped with such a wireless LAN function can be used.

  The receiving unit 104 receives a signal notification signal indicating whether the pedestrian traffic light 10 is red or blue from the control device 200 via the wireless LAN communication unit 102. The determination unit 106 determines whether the pedestrian traffic light 10 is red or blue based on the signal notification signal received by the reception unit 104.

  In the traffic signal control system 1 according to the present embodiment, the user portable terminal (mobile phone 100) includes a reception unit 108 that receives a permission operation for transmitting a signal control signal to the pedestrian traffic light 10 from a pedestrian. The control signal transmission unit (transmission unit 112) of the terminal (mobile phone 100) transmits a traffic light control signal to the control device 200 when the reception unit 108 receives a permission operation. Here, the permission operation can be a predetermined key operation or an input of a password of one digit or more. In the present embodiment, the permission operation will be described by taking the input of a password as an example.

  That is, when the determination unit 106 determines that the pedestrian traffic light 10 is red, the reception unit 108 receives the personal identification number input on the personal identification number input screen. At this time, a password input screen for prompting the user of the mobile phone 100 to input the password is displayed on the display unit 34. As described above, this personal identification number is for permitting transmission of a traffic light control signal for instructing to change the traffic light for pedestrian 10 from red to blue to the control device 200.

  The authentication unit 110 authenticates the personal identification number received by the reception unit 108. Here, authentication can be performed by comparing the password received by the receiving unit 108 with the registered password stored in advance in the ROM 22 (FIG. 2). This asks the user for confirmation in order to prevent unnecessary access to the pedestrian traffic light 10 by the mobile phone 100. That is, when the signal notification signal is transmitted from the control device 200 of the pedestrian traffic light 10 to the mobile phone 100 through the wireless LAN, the user of the mobile phone 100 must input the personal identification number. Thereby, for example, when a pedestrian who is a user does not intend to cross a pedestrian crossing and is simply standing by the pedestrian crossing, it is possible to prevent the traffic light control from being performed. As will be described later, this authentication process makes it possible to specify a user who is controlling the pedestrian traffic light 10 from the mobile phone 100.

  The recording unit 114 records in the history storage unit 116 information such as the time when the mobile phone 100 accessed the pedestrian traffic light 10 and the red or blue information of the pedestrian traffic signal 10. That is, each information received and transmitted by the receiving unit 104 and the transmitting unit 112 is recorded in the history storage unit 116 as history information together with the timing (time, etc.). The history storage unit 116 stores information such as the time when the mobile phone 100 accesses the pedestrian traffic light 10 and information such as red or blue of the pedestrian traffic light 10 as history information. The history storage unit 116 may be either the ROM 22 or the RAM 24 of FIG. 2, but the ROM 22 can be held without battery backup even when the power of the mobile phone 100 is turned off. So it is more preferable.

  The information in the history storage unit 116 is read out by a reading unit (not shown) and displayed on the display unit 34 in FIG. 2, or a data file is created and transmitted to the outside via the mobile communication unit 38 by e-mail. And uploading to a server (not shown) on a network (not shown). Alternatively, the data is output from the mobile phone 100 to another terminal (not shown) via a USB (Universal Serial Bus) cable (not shown) or recorded on a recording medium (not shown) inserted in the mobile phone 100. can do.

  According to this configuration, even when an accident occurs at an intersection or the like, it can be used as an evidence even when there is no witness. Further, the history information can be recorded not in the mobile phone 100 but in a storage unit (not shown) of the control device 200.

  The terminal ID storage unit 120 stores the terminal ID of the mobile phone 100. The terminal ID is unique identification information of the mobile phone 100. The transmitting unit 122 reads the terminal ID from the terminal ID storage unit 120 and transmits the P * signal transmitted by the mobile communication unit 38 of FIG. 2 including the terminal ID. In general, a general mobile phone transmits a signal including a terminal ID in order to register a location with the nearest base station. Therefore, the operation of the transmitting unit 122 is an operation of transmitting a signal while the mobile phone 100 is in a standby state, and functions originally provided in the mobile phone 100 can be used.

  Further, in the traffic signal control system 1 of the present embodiment, the control device 200 detects the reception signal level from the user portable terminal (mobile phone 100), and whether or not the reception signal level is a predetermined value or more. When the determination unit 212 determines that the received signal level is equal to or higher than the predetermined value, the determination unit 212 starts the determination. When it is determined that the received signal level is not higher than the predetermined value, the determination unit 212 And a control unit 244 that does not start the determination.

  According to this configuration, control is performed such that the position of the user portable terminal (mobile phone 100) is communicated with the pedestrian traffic light 10 while maintaining a certain distance according to the level of a received signal from the user portable terminal (mobile phone 100). be able to. In addition, when the user portable terminal (mobile phone 100) is not in the vicinity of the pedestrian traffic light 10, the operation can be prevented from being performed, so that unnecessary operations and communication can be omitted.

  The control device 200 controls the pedestrian traffic signal 10 to be changed from a red signal to a blue signal in accordance with an instruction from the user's mobile phone 100, and includes a wireless LAN communication unit 202, a transmitter 210, and a traffic signal identification information storage unit. (Shown as “signal identification information” in the figure) 220, a receiver 230, a receiving unit 240, a level determining unit 242, and a control unit 244.

  The wireless LAN communication unit 202 performs wireless communication with the mobile phone 100. In this embodiment, the control apparatus 200 performs the control operation | movement in which transmission and reception were independent in control of the pedestrian traffic light 10 by providing the transmitter 210 and the receiver 230. FIG.

  The transmitter 210 includes a determination unit 212 and a transmission unit 214. The determination unit 212 determines whether the pedestrian traffic light 10 is blue or red. In the present embodiment, a parameter X0 is assigned as an identification unique number in order to distinguish a plurality of pedestrian traffic lights 10 from those around them. The traffic signal identification information storage unit 220 stores a traffic signal identification unique number X0.

The transmission unit 214 reads the identification unique number assigned to each pedestrian traffic signal 10 stored in the traffic signal identification information storage unit 220 to the signal communication signal including the determination result by the determination unit 212, and transmits a signal notification signal. To the mobile phone 100 via the wireless LAN communication unit 202. In addition, when the traffic light control unit 234 changes the pedestrian traffic light 10 from red to blue by the traffic signal control signal received from the one mobile phone 100, the transmission unit 214 has already started control to change to blue. Is transmitted to the mobile phone 100 of another user via the wireless LAN communication unit 202.
Here, for example, a signal notification signal is transmitted to the mobile phone 100 on the LAN by a broadcast signal.

  The receiver 230 includes a control signal receiving unit 232 and a traffic signal control unit 234. The control signal receiving unit 232 receives a traffic signal control signal transmitted from the mobile phone 100 via the wireless LAN communication unit 202. The traffic light control unit 234 performs control to change the pedestrian traffic light 10 from red to blue according to the traffic signal control signal received by the control signal reception unit 232.

  The receiving unit 240 receives a signal transmitted from the mobile phone 100 and passes it to the level determining unit 242. The level determination unit 242 determines whether or not the P * signal received by the receiving unit 240 from the mobile phone 100 is equal to or higher than a predetermined power level A (dBm). The control unit 244 controls to start the traffic signal control process of the present invention only when it is determined that the P * signal received by the level determination unit 242 is equal to or higher than the predetermined power level A.

  That is, when the distance between the pedestrian traffic light 10 and the mobile phone 100 is sufficiently large, communication between the mobile phone 100 and the control device 200 is not performed, and when a certain distance is reached, the mobile phone 100 and the control device 200 are communicated. Control by mutual communication is started. As described above, as a method of detecting the distance between the mobile phone 100 and the pedestrian traffic light 10, the power level A (dBm) received from the mobile phone 100 is defined in advance, and the control device for the pedestrian traffic light 10 It is stored in 200 memory (not shown). Only when power of A (dBm) or more is received from the mobile phone 100, the mutual communication control is started.

  Further, a distance that is a condition for starting control of the pedestrian traffic signal 10 and the user's mobile phone 100 is detected so that there are no two or more pedestrian traffic signals 10 located at the same distance from the user. A predetermined power level A (dBm) is set.

  The traffic signal control method by the traffic signal control system 1 of the present embodiment having the above configuration will be described below. FIG. 3 is a flowchart showing an example of the traffic signal control operation of the traffic signal control system 1 of the present embodiment.

  The traffic signal control method in the traffic signal control system 1 according to the embodiment of the present invention is a traffic that controls the traffic signal 10 for a pedestrian by the control device 200 that wirelessly communicates with a user portable terminal (mobile phone 100) carried by the pedestrian. A signal control method in which the control device 200 determines whether the pedestrian traffic light 10 is red or blue (S33), and a signal notification indicating the determination result determined by the control device 200 in the determined procedure A procedure (S35) for transmitting a signal to a user portable terminal (mobile phone 100) existing in the vicinity of the pedestrian traffic light 10 by wireless communication and a user portable terminal (mobile phone 100) are transmitted from the control device 200. The procedure for receiving the signal notification signal by wireless communication (S11) and the procedure for receiving the signal notification signal by the user portable terminal (mobile phone 100) are received. The procedure (S13) for determining whether the pedestrian traffic light 10 is red or blue based on the signal notification signal, and the user portable terminal (mobile phone 100) determines that the pedestrian traffic light 10 is red (YES in S13), a traffic light control signal is transmitted to the control device 200 by wireless communication (S20), and if it is determined that the pedestrian traffic light 10 is blue (NO in S13), the control device 200 controls the traffic light. A procedure for not transmitting a signal (bypassing S20), a procedure for the control device 200 to receive a traffic signal control signal from the user portable terminal (mobile phone 100) by wireless communication (S37), and a control device 200 receiving a traffic signal control signal And a procedure (S39) of changing the traffic light 10 for pedestrians from red to blue in response to the traffic signal control signal received in the receiving procedure.

  Specifically, first, in the control device 200, the level determination unit 242 determines whether or not the P * signal received by the reception unit 240 from the mobile phone 100 is equal to or higher than a predetermined power level A (dBm) (S31). . When the level determination unit 242 determines that the power level is not equal to or higher than the predetermined power level A (NO in S31), the control device 200 does not start step S33 and subsequent steps in the process of this flow. On the other hand, when the level determining unit 242 determines that the power level A is equal to or higher than the predetermined power level A (YES in S31), the control unit 244 is notified to start the processing of this flow, and the process proceeds to step S33.

  As described above, in the traffic signal control system 1 according to the present embodiment, the control device 200 performs the present operation when the received signal level from the mobile phone 100 is not equal to or higher than a predetermined value, that is, when the mobile phone 100 does not exist in the vicinity. The operation of the traffic signal control function of the invention, that is, the red / blue discrimination of the pedestrian traffic light 10 after Step S33 and the control of changing the pedestrian traffic light 10 from red to blue from the mobile phone 100 are not performed. A normal control operation of the pedestrian traffic light 10 is performed.

  In step S33, the control unit 244 notifies the transmitter 210 of an operation start, and the operation of the transmitter 210 is started. In the transmitter 210, the determination unit 212 determines whether the pedestrian traffic light 10 is blue or red (S33). Then, the transmission unit 214 reads the identification number (identified as a signal ID in the figure) of the traffic signal stored in the traffic signal identification information storage unit 220 in the signal notification signal indicating the determination result by the determination unit 212 in step S33. And transmitted to the mobile phone 100 via the wireless LAN communication unit 202 (S35).

  Then, in the mobile phone 100 carried by the user in the vicinity of the pedestrian traffic light 10, the receiving unit 104 receives the signal notification signal transmitted from the control device 200 via the wireless LAN communication unit 102 (S11). The determination unit 106 determines whether the pedestrian traffic light 10 is red or blue based on the signal notification signal received by the reception unit 104 in step S11 (S13). And when the determination part 106 determines with the pedestrian traffic light 10 being red (YES of S13), it progresses to step S15. On the other hand, when the determination unit 106 determines that the pedestrian traffic light 10 is blue (NO in S13), the process returns to step S11.

  In step S15, the receiving unit 108 causes the display unit 34 to display a screen requesting the user to input a personal identification number. Then, the accepting unit 108 accepts the password entered by the user operating the operation unit 30 (YES in S17). The process returns to step S15 until the password is received (NO in S17). Note that this process can be terminated by a cancel operation or a timeout. Then, if the authentication unit 110 authenticates the personal identification number and is authenticated (YES in S19), the process proceeds to step S20. If not authenticated (NO in S19), the process returns to step S15. And in step S20, the transmission part 112 transmits the traffic signal control signal used as the control request | requirement which changes the pedestrian traffic light 10 from red to blue to the control apparatus 200 via the wireless LAN communication part 102 (S20).

  In the control device 200, when the control signal receiving unit 232 receives the signal control signal transmitted from the mobile phone 100 via the wireless LAN communication unit 202 in the receiver 230 (YES in S 37), the signal control unit 234. Changes the pedestrian traffic light 10 from red to blue (S39).

  The cellular phone 100 and the control device 200 according to the present embodiment execute various processing operations corresponding to the computer program installed in each device, whereby the various means 102 to 122 and 202 to 244 as described above. Are realized as various functions.

  The computer program of this embodiment implemented in the mobile phone 100 is a computer program for controlling the pedestrian traffic light 10 by the control device 200 that wirelessly communicates with a user mobile terminal (mobile phone 100) carried by the pedestrian. The computer (CPU 20 of the mobile phone 100) receives the signal notification signal from the control device 200 by wireless communication (S11) and the signal notification signal received in the procedure of receiving the signal notification signal. When it is determined that the traffic light 10 is red or blue (S13) and when the pedestrian traffic light 10 is determined to be red (YES in S13), a traffic light control signal is transmitted to the control device 200 by wireless communication ( When it is determined that the pedestrian traffic light 10 is blue together with S20) (NO in S13), the control device 200 is notified. It is described so as to perform a procedure that does not transmit a machine control signal (S20 bypassing), and.

  Furthermore, the computer program of this embodiment implemented in the control apparatus 200 is a computer program which controls the traffic signal 10 for pedestrians by the control apparatus 200 which carries out radio | wireless communication with the user portable terminal (mobile telephone 100) which a pedestrian carries. Then, the computer (CPU (not shown) of the control device 200) notifies the pedestrian traffic light 10 whether it is red or blue (S33), and signal notification indicating the discrimination result determined by the determined procedure. A procedure (S35) of transmitting a signal to a user portable terminal (mobile phone 100) existing in the vicinity of the pedestrian traffic light 10 by wireless communication, and a signal control signal is wirelessly transmitted from the user portable terminal (mobile phone 100). In response to the signal control signal received in the procedure of receiving by communication (S37) and the procedure of receiving the signal control signal, for pedestrians The No. 10 has been described so as to perform the procedure (S39) to change from red to blue, the.

4-7 is a flowchart which shows the example of the procedure of the program which controls the mobile telephone 100 and the control apparatus 200 of the traffic signal control system 1 of this embodiment.
FIG. 4 is a flowchart showing the processing procedure of the control program of the mobile phone 100 of this embodiment. FIG. 5 is a flowchart showing the processing procedure of the control program of the control device 200 of the present embodiment. FIG. 5A shows a processing procedure of the transmitter 210 of the control device 200, and FIG. 5B shows a processing procedure of the receiver 230 of the control device 200. Further, FIG. 6 is a flowchart showing the processing procedure of the memory operation in the control program of the control device 200. FIG. 7 is a flowchart showing a processing procedure of a password receiving operation in the control program of the mobile phone 100. FIG. 8 is a timing chart showing signal switching control in the traffic signal control system 1 of the present embodiment.

Hereinafter, a description will be given with reference to FIGS.
First, the processing procedure of the control program of the mobile phone 100 of this embodiment will be described.
As shown in FIG. 4, first, each signal is initialized (S101). That is, 1 is set to the parameter X (t), 0 is set to Y (t) indicating that the control device 200 performs control to change the pedestrian traffic light 10 to blue, and the input of the personal identification number is performed. 0 is set in Z indicating whether or not it has been accepted. Here, t means time.

  1 transmits a P * signal (S103). Then, the determination unit 106 determines whether or not an X (t) signal is received from the control device 200 (S105). If the X (t) signal has been received (YES in S105), the process proceeds to step S107. If not received (NO in S105), the process returns to step S101. At this time, the X (t) signal includes the traffic signal identification unique number X 0 of the pedestrian traffic signal 10 received from the control device 200.

  In step S107, the determination unit 106 determines whether a Y (t) signal has been received. When the Y (t) signal is received (YES in S107), the process returns to step S103. On the other hand, when the Y (t) signal has not been received (NO in S107), the process proceeds to step S109, and the determination unit 106 determines whether X (t) is 1. If X (t) is 1 (YES in S109), the process returns to step S103. If X (t) is not 1 (NO in S109), the process proceeds to step S111.

  Then, the password input control is performed by the reception unit 108 and the authentication unit 110, and it is determined whether or not the password is authenticated (S111).

  In the present embodiment, the personal identification number input control in step S111 is performed by the personal identification number input acceptance process flow shown in FIG. In FIG. 7, first, in step S131, it is determined whether Z = X0 (signal identification number) (S131). If Z = X0 (YES in S131), the process ends without performing. If Z = X0 is not satisfied (NO in S131), the accepting unit 108 accepts an input of a personal identification number (S133). Then, X0 is set to Z (S135). With this processing, when there are a plurality of traffic lights in the vicinity of the user's mobile phone 100, the traffic lights that the user is currently trying to operate can be distinguished by the traffic signal identification number.

  Returning to FIG. 4, when the password input control is performed and the password is authenticated by the authentication unit 110 (the execution of S111 and the authentication is successful), the process proceeds to step S113, and the password input control is not performed or the authentication is performed. When the authentication of the personal identification number by the unit 110 has failed (S111 is not performed or the authentication has failed), the process returns to step S103.

  In step S113, it is determined whether Y (t) is 1. That is, it is determined whether the pedestrian traffic light 10 is blue. If Y (t) = 1 (YES in S113), that is, if the pedestrian traffic light 10 is blue, the process returns to step S103, and if Y (t) is not 1 (NO in S113), that is, a pedestrian. When the traffic signal 10 is red, the transmission unit 112 of the mobile phone 100 sets Y (t) to 1 and transmits it to the control device 200 via the wireless LAN communication unit 102 (S115).

  At this time, the timing when the user's mobile phone 100 sends Y (t) = 1 to the pedestrian traffic light 10 (time t, etc.), and the traffic signal identification unique number of the pedestrian traffic light 10 received from the control device 200 The recording unit 114 records X0 in the history storage unit 116 (S117).

Next, the processing procedure of the control program of the transmitter 210 of the control device 200 of this embodiment will be described.
5A, first, in the control device 200, the level determination unit 242 determines whether or not the P * signal received by the receiving unit 240 from the mobile phone 100 is equal to or higher than a predetermined power level A (dBM). Determine (S201). When the level determining unit 242 determines that the power level is not equal to or higher than the predetermined power level A (NO in S201), the transmitter 210 of the control device 200 does not start step S203 and subsequent steps in the process of this flow. On the other hand, when the level determination unit 242 determines that the power level A is equal to or higher than the predetermined power level A (YES in S201), the control unit 244 is notified to start the processing of this flow, and the process proceeds to step S203.

  Next, memory operation processing is performed in step S203. Specifically, the processing is performed according to the flow shown in FIG. This process can be performed by the CPU of the control device 200, for example. First, the CPU acquires various types of information from the receiver 230 (S251). The various information acquired here can be temporarily stored in the RAM.

  Then, the CPU determines whether Y = 1 based on the information acquired in step S251 (S253). If Y = 1 (YES in S253), the process proceeds to step S255. If Y = 1 is not satisfied (NO in S253), the process is terminated by bypassing step S255. In step S255, the transmitter 210 is notified of the information acquired in step S251 temporarily stored in the RAM (S255).

  Returning to FIG. 5A, when the memory operation in step S203 ends, the process proceeds to step S205. In the transmitter 210, the determination unit 212 determines whether the pedestrian traffic light 10 is blue or red (S205). When the pedestrian traffic light 10 is blue (YES in S205), the transmission unit 214 sets 1 to X and transmits X to the mobile phone 100 via the wireless LAN communication unit 202 (S207). Then, 0 is set in Y (S209), and the process returns to step S201.

  On the other hand, when the pedestrian traffic light 10 is not blue (NO in S205), the transmission unit 214 sets X0 to X and transmits X to the mobile phone 100 via the wireless LAN communication unit 202 (S211). Then, it is determined whether or not Y is 1 (S213), and if Y = 1 (YES in S213), Y = 1 is transmitted to the mobile phone 100 via the wireless LAN communication unit 202 (S215), and step S201. Return to. On the other hand, if Y is not 1 (NO in S213), step S215 is bypassed and the process returns to step S201.

Next, the processing procedure of the control program of the receiver 230 of the control device 200 of this embodiment will be described.
As shown in FIG. 5B, first, the control signal receiving unit 232 determines whether or not the traffic signal control signal Y received from the mobile phone 100 via the wireless LAN communication unit 202 is 1 (S231), and Y = In the case of 1 (YES in S231), that is, when a control instruction to change the pedestrian traffic light 10 from red to blue is received from the mobile phone 100, the process proceeds to step S233, and this process is started. If Y is not 1 (NO in S231), the process returns to step S231 and this process is not performed. That is, when the traffic signal control signal Y received from the mobile phone 100 does not include a control instruction to change the mobile phone 100 from red to blue, the control device 200 performs the normal control operation of the pedestrian traffic light 10. Do.

  In step S233, the traffic light control unit 234 performs control to change the pedestrian traffic light 10 from red to blue after a predetermined time T (seconds) after receiving the traffic light control signal Y = 1 in step S231 (S233). . As shown in FIG. 8, after the traffic signal control signal is received, the traffic light is changed to blue at T (seconds), and therefore, it is changed to blue earlier by r (seconds) than the normal signal operation (broken line). Thus, the signal waiting time is shortened by r (seconds). In step S235, memory operation processing is performed. Processing is performed according to the flow of FIG. 6 described above. When the memory operation process in step S235 is completed, 0 is set in Y (S237), the process returns to step S231, and this process is repeated.

  As described above, according to the traffic signal control system 1 of the embodiment of the present invention, when the pedestrian traffic light is red, it is possible to control the traffic light from red to blue from the user portable terminal, and to the pedestrian. When the traffic signal is blue, communication for signal control is not performed with respect to the traffic signal, so that the power consumption of the user portable terminal can be reduced.

  As mentioned above, although embodiment of this invention was described with reference to drawings, these are the illustrations of this invention, Various structures other than the above are also employable.

  For example, in the present embodiment, the personal identification number input control in S111 of FIG. 4 inquires the personal identification number every time and manually inputs the personal identification number every time the user accesses the pedestrian traffic light 10. There must be. In another embodiment, for example, this process can be automatic, and the user registers a password in advance in the ROM 22 or RAM 24 (FIG. 2) of the mobile phone 100 and is registered in the memory in step S111. The authentication unit 110 can automatically perform authentication by reading out the current personal identification number.

  According to this configuration, the pedestrian traffic light 10 near the user can be changed to a green light without depending on the user's consciousness of the mobile phone 100.

Moreover, although the said embodiment has described about the structure which employ | adopts wireless LAN as a mutual communication means of the mobile telephone 100 and the pedestrian traffic light 10, it is not limited to this. In another embodiment, Bluetooth may be employed as the wireless communication unit. The present invention can be realized by the mobile phone 100 equipped with Bluetooth instead of the wireless LAN and the pedestrian traffic light 10. Alternatively, infrared communication may be performed between the control device and the user portable terminal.
In the configuration in which communication is performed between the mobile phone 100 and the pedestrian traffic light 10 using a wireless LAN or Bluetooth, there is an advantage that a communication fee is not charged to the user of the mobile phone 100.

  In the wireless LAN and Bluetooth in the above-described embodiment, investment in new infrastructure facilities for the pedestrian traffic light 10 and applicable mobile phones 100 are limited. Therefore, in another embodiment, the present invention can also be realized by using a communication function of the mobile phone 100 such as CDMA (Code Division Multiple Access) that has been conventionally used. That is, the control device 200 of the pedestrian traffic light 10 and the user portable terminal (mobile phone 100) can communicate via the mobile phone network. In this case, a direct communication between the mobile phone 100 and the pedestrian traffic light 10 via the mobile phone network is realized by the mobile phone network server (not shown) recognizing via the mobile base station and the exchange. To do. If the pedestrian traffic light 10 is a single terminal device, a base station (not shown) can search and grasp the position of each terminal, so the positional relationship between the mobile phone 100 and the pedestrian traffic light 10 is the base. It can be detected by the distance from the station. When two or more mobile phones 100 are concentrated on one pedestrian traffic light 10, the mobile phone 100 that has accessed the pedestrian traffic light 10 first is brought into a talking state, and the other mobile phone 100 is used for pedestrian traffic. You may make it impossible to access the traffic light 10.

  According to this configuration, there is a merit that a communication carrier company has a communication fee income and a merit that can be realized only by existing communication means. Although wireless LAN is not suitable for high-speed mobile communication, this problem can be solved by using the communication function of mobile phone 100.

  In the above embodiment, the distance between the mobile phone 100 and the pedestrian traffic signal 10 in the wireless LAN is detected based on the transmission power from the mobile phone 100. However, as another means, an IC tag is attached to the telephone pole. It is also possible to detect by installing.

  In another embodiment, in the traffic signal control system, an IC tag (not shown) for identifying the pedestrian traffic signal 10 can be provided in the vicinity of the traffic signal control system 1. Then, the user portable terminal (mobile phone 100) transmits a reading unit (not shown) that reads the IC tag, and a notification unit that transmits the identification information of the read IC tag to the control device 200 and notifies the control device 200 of a communication start notification. (Not shown). Furthermore, the control device 200 can include a reception unit (not shown) that receives a communication start notification from the user portable terminal (mobile phone 100), and the transmission unit 214 of the control device 200 receives the communication start notification as a control signal. When the unit 232 receives the signal and determines that the traffic light 10 is red, the signal notification signal can be transmitted to the user portable terminal (cellular phone 100).

  Alternatively, an IC tag can be attached to the user portable terminal, and the user portable terminal can be detected on the pedestrian traffic light side.

  When the user of the mobile phone 100 passes near the IC tag of the telephone pole near the pedestrian traffic light 10 and within a radius of several meters, the wireless LAN installed in the pedestrian traffic light 10 acquires the information. Thereafter, mutual control with the mobile phone 100 can be started. According to this configuration, since it is possible to start communication by detecting that the mobile phone 100 has passed by the pedestrian traffic light 10, it is possible to start communication only when necessary.

  In another embodiment, in the cellular phone 100, the reception unit 108 simply receives an operation of setting the pedestrian traffic light 10 to blue, and the transmission unit 112 performs signal transmission by wireless communication including wireless LAN, infrared rays, and Bluetooth. A control signal may be transmitted to the control device 200.

  According to this configuration, since it is not necessary to always transmit a P * signal from the mobile phone 100, power consumption can be further reduced. If infrared communication is used for wireless communication, it is not necessary to provide a wireless LAN communication unit or the like, and it is possible to cope with the configuration of the conventional mobile phone 100, which can be realized even with an inexpensive mobile phone 100.

  In the above embodiment, when the user of the mobile phone 100 approaches the pedestrian traffic light 10, in the case of a red signal, control is performed to change to a green signal after T (seconds). By coordinating with the navigation system, the pedestrian traffic light 10 in the direction in which the user travels is always blue, and can be guided safely and quickly.

  That is, in the traffic signal control system, the user portable terminal (mobile phone 100) is present in the traveling direction of the pedestrian guided by the navigation unit (not shown) for guiding the pedestrian to the desired destination and the navigation unit. A signal detector (not shown) for detecting the pedestrian traffic signal 10 to be detected, and the control signal transmitter (transmitter 112) of the user portable terminal (cell phone 100) is detected by the signal detector. When the signal notification signal is received from the pedestrian traffic light 10, the traffic signal control signal can be transmitted to the control device 200 by the wireless communication unit (wireless LAN communication unit 102).

  When the user of the mobile phone 100 approaches the pedestrian traffic light 10 during navigation, the receiving unit 104 receives the signal X (t) transmitted from the control device 200 to the mobile phone 100 via the wireless LAN communication unit 202. By placing the user's position information on this signal, the position of the signal can be displayed on the map, and at the same time, the state of the signal can be placed. Moreover, since it is stressful for the user to input the personal identification number for each signal, it is preferable to perform automatic processing.

Furthermore, in the traffic signal control system according to another embodiment, the user portable terminal (mobile phone 100) is mounted on the vehicle, and the control signal transmission unit (transmission unit 112) of the user portable terminal (mobile phone 100) is a vehicle traffic signal. Can be transmitted to the control device 200 wirelessly.
According to this configuration, if the navigation system function is used, the user side of the mobile phone 100 can be used not only for people but also for emergency vehicles.

  Furthermore, in the traffic signal control system according to another embodiment, the control device 200 includes a determination unit (not shown) that determines whether or not the remaining time of the green light of the pedestrian traffic light 10 is within a predetermined time, and the remaining time of the green signal Is determined to be within a predetermined time (for example, within 10 seconds), the transmitting unit 214 transmits specific information to the user portable terminal (cellular phone 100) by the wireless LAN communication unit 202, and the user portable terminal (portable A receiving unit (control signal receiving unit 232) that receives a blue signal extension control signal that is a control request for extending the blue signal for a predetermined time from the telephone 100), and a traffic light control unit 234 that extends the blue signal for a predetermined time according to the received blue signal extension control signal; , Can be included. Further, the user portable terminal (mobile phone 100) receives the specific information transmitted from the control device 200 by the wireless LAN communication unit 102, and the remaining time of the green signal based on the received specific information. When it is determined that the remaining time of the green signal is within the predetermined time and a determination unit (not shown) that determines that the time is within the predetermined time, the wireless LAN communication unit 102 transmits the green signal extension control signal to the control device 200. And a transmitting unit 112 to be included.

  Here, the mobile phone 100 is a specific mobile phone 100 registered in advance. Thereby, for example, if the handicapped person has a specific user portable terminal and receives specific information, the time of the green light can be extended.

(Example 1)
In the traffic signal control system 1 of the present embodiment configured as described above, first, an example of operation when there is one mobile phone 100 and one pedestrian traffic light 10 will be described. Hereinafter, a description will be given with reference to FIGS.

  First, the control when the pedestrian traffic light 10 is not present near the mobile phone 100 will be described. At this time, in step S201 of FIG. 5A, the level of the received P * signal is not A or higher (NO in S201), so the processing in the receiver 230 of the control device 200 is not performed, that is, a pedestrian traffic light Regardless of whether the color of 10 is red or blue, communication between the mobile phone 100 and the control device 200 of the pedestrian traffic light 10 is not performed, and the control device 200 performs a normal control operation of the pedestrian traffic light 10. Do.

  When the cellular phone 100 approaches the pedestrian traffic light 10 within a certain distance, the receiving unit 240 of the control device 200 of the pedestrian traffic signal 10 receives the P * signal constantly transmitted from the cellular phone 100, and FIG. In step S201 of a), it is determined whether or not the level of the P * signal received by the level determination unit 242 is A or higher. Then, only when the level of the P * signal is A or higher (YES in S201), the control by the control device 200 of the pedestrian traffic light 10 is started (after step S203 in FIG. 5A).

  As described above, in the present embodiment, in the control device 200, as shown in FIGS. 5A and 5B, the transmitter 210 and the receiver 230 perform independent control. As shown in FIG. 5A, in the transmitter 210, when the pedestrian traffic light 10 is determined to be blue (YES in S205), the X = 1 signal is determined to be (S207), and when it is determined to be red (S205). NO), X = X0 (S211) is always transmitted. Here, as described above, X0 indicates the identification unique number of the pedestrian traffic light 10.

  As shown in FIG. 5B, in the receiver 230, only when it is confirmed that a signal of Y = 1 is transmitted from the mobile phone 100 (YES in S231), the pedestrian traffic signal 10 is controlled to be a green signal. If (S233) is performed and no confirmation is made (NO in S231), a normal control operation of the pedestrian traffic light 10 is performed (not shown). On the other hand, as shown in FIG. 4, in the mobile phone 100, unless the signal transmitted from the control device 200 of the pedestrian traffic light 10, for example, X = 1 or X0 is received (NO in S105), the traffic signal of the present invention. The control process does not operate (return to S101).

  Next, control when the pedestrian traffic light 10 is blue will be described. When the pedestrian traffic light 10 is blue, the receiving unit 104 of the mobile phone 100 receives the signal X = 1 from the control device 200 of the pedestrian traffic signal 10 via the wireless LAN communication unit 102. As shown in S109, when X = 1 (YES in Step S109), the process returns to Step S103, and control is performed so as not to perform the transmission process (S115) of the traffic light control signal from the mobile phone 100 to the control device 200.

  That is, when the mobile phone 100 is present in the vicinity of the pedestrian traffic light 10 and the pedestrian traffic light 10 is blue, in the mobile phone 100, the receiving unit 104 transmits information on X (t) from the control device 200 to the wireless LAN. Received via the communication unit 102 (YES in S105). Thereafter, in order to determine the color of the pedestrian traffic light 10, it is determined in step S109 whether X (t) is 1. When X (t) = 1 (YES in S109), since the pedestrian traffic light 10 is blue, the process returns to step S103, the signal control signal transmission process is not performed, and steps S105 and S107 following step S103 are performed. Return to control of signal reception processing.

  On the other hand, control when the pedestrian traffic light 10 is red will be described below. When the pedestrian traffic light 10 is red, the receiving unit 104 of the mobile phone 100 receives the signal X = X0 from the control device 200 of the pedestrian traffic signal 10 via the wireless LAN communication unit 102 (S105). Then, a signal control signal Y = 1 is transmitted from the mobile phone 100 to the control device 200 of the pedestrian traffic light 10 (S115), and the pedestrian traffic signal 10 can be controlled to be blue.

  When the mobile phone 100 is near the pedestrian traffic light 10 and the pedestrian traffic light 10 is red, the mobile phone 100 receives information of X (t) = X0 (NO in S109). Then, the user of the mobile phone 100 is inquired about the input of the personal identification number (implementation of S111). Then, the password entered by the user is received by the reception unit 108 and the password entered by the authentication unit 110 is authenticated. When the input personal identification number is authenticated (the execution of S111 and the authentication is successful), since the signal received at this time is X (t) = X0, the signal of Y = 1 is transmitted from the mobile phone 100 to the control device 200. The transmission unit 112 transmits the data via the wireless LAN communication unit 102 (S115). And the timing which transmitted Y = 1 to the control apparatus 200, and the traffic signal identification specific number X0 received from the pedestrian traffic light 10 are memorize | stored in RAM24 of the mobile telephone 100 (S117).

  On the other hand, in the control device 200, since the control signal receiving unit 232 receives the traffic signal control signal Y = 1 transmitted from the mobile phone 100 (YES in S231 in FIG. 5B), the traffic signal control unit 234 is used for pedestrians. Control is performed to change the traffic light 10 from red to blue after a predetermined time T (seconds) (S233).

  The pedestrian traffic light 10 should turn blue after T (seconds), but the control of FIG. 4 is always repeated inside the mobile phone 100, and the control of FIG. 5 is always repeated inside the control device 200. Therefore, before the pedestrian traffic light 10 is switched from the red signal to the blue signal after T (seconds), the traffic signal control signal Y = 1 is continuously transmitted to the control device 200 of the pedestrian traffic light 10. S233 of FIG.5 (b) will be repeatedly implemented, and the situation where the traffic light 10 for pedestrians will not switch to blue will arise even if it passes.

  In order to prevent such a situation, once it is promised that the pedestrian traffic light 10 will turn blue (YES in S113 in FIG. 4), control is performed so that the mobile phone 100 does not transmit the traffic signal control signal Y = 1. Therefore, step S115 is bypassed.

  As described above, according to the present embodiment, when the mobile phone 100 is one and the pedestrian traffic light 10 is one, the mobile phone 100 is the pedestrian traffic light when the pedestrian traffic light 10 is red. When approaching 10, the pedestrian traffic light 10 can be switched from red to blue by an instruction from the mobile phone 100.

(Example 2)
In this embodiment, an example of an operation when there are a plurality of mobile phones 100 and a single pedestrian traffic light 10 will be described. Hereinafter, a description will be given with reference to FIGS.

  First, when the pedestrian traffic light 10 is blue, it is the same as the control operation of the pedestrian traffic light 10 of the first embodiment, so the description is omitted. On the other hand, the case where the traffic light 10 for pedestrians is red is demonstrated. When a plurality of mobile phones 100 are present in the vicinity of the pedestrian traffic light 10, there is a possibility that control for changing the pedestrian traffic light 10 from red to blue is already performed by another mobile phone 100. At this time, in order to avoid double control, the control device 200 of the pedestrian traffic light 10 notifies the mobile phone 100 of the traffic signal control signal Y (t) in addition to the signal notification signal X (t). ) Is also sent. That is, the mobile phone 100 receives X (t) and Y (t).

  If the pedestrian traffic signal 10 has already been promised to turn blue after T (seconds), the control device 200 should have received the traffic signal control signal Y = 1 from the other mobile phone 100. Therefore, Y = 1 is transmitted from the transmission unit 214 to the mobile phone 100 other than the mobile phone 100 that has transmitted the information via the wireless LAN communication unit 202 (S215), and each mobile phone 100 receives another mobile phone. 100 can notify and recognize that switching control to a green light has already been performed.

  In this way, even when a plurality of mobile phones 100 are present near one pedestrian traffic light 10, the mobile phone 100 can perform control to change the pedestrian traffic light 10 from red to blue. it can.

(Example 3)
In the present embodiment, an example of an operation when there is one mobile phone 100 and a plurality of pedestrian traffic lights 10 will be described. Hereinafter, a description will be given with reference to FIGS.
When there are a plurality of pedestrian traffic lights 10 near the user of the mobile phone 100, control using the traffic signal identification number (parameter X0) for distinguishing the pedestrian traffic lights 10 described above is performed. That is, in a positional relationship where a plurality of pedestrian traffic lights 10 exist at the same distance from the user, the distance between the mobile phone 100 and each pedestrian traffic light 10 is more than a predetermined value. Since the traffic signal 10 is not located at the same distance as long as the presence of the mobile phone 100 can be identified, the mobile phone 100 must always select one pedestrian traffic signal 10 and the one pedestrian traffic signal. X (t) information is received only from 10.

  In the present embodiment, the mobile phone 100 further includes means (not shown) for detecting and comparing the power levels of a plurality of signals transmitted from the control devices 200 of the plurality of pedestrian traffic lights 10. Thus, the pedestrian traffic light 10 is controlled in the order of the power levels of the signals transmitted from the multiple pedestrian traffic lights 10, and there are a plurality of pedestrian traffic lights 10 for one mobile phone 100. Can handle the case.

It is a functional block diagram which shows the structure of the traffic signal control system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the mobile telephone of the traffic signal control system of FIG. It is a flowchart which shows an example of operation | movement of the traffic signal control system which concerns on embodiment of this invention. It is a flowchart which shows an example of control operation of the mobile telephone of the traffic signal control system which concerns on embodiment of this invention. It is a flowchart which shows an example of control operation | movement of the traffic signal for pedestrians of the traffic signal control system which concerns on embodiment of this invention. 6 is a flowchart illustrating an example of a control procedure of a memory operation in the flowchart of FIG. 5. It is a flowchart which shows an example of the operation | movement of PIN code control in the mobile telephone of the traffic signal control system which concerns on embodiment of this invention. It is a timing chart for demonstrating operation | movement of the traffic signal control system which concerns on embodiment of this invention.

Explanation of symbols

1 Traffic signal control system 10 Pedestrian traffic light 20 CPU
22 ROM
24 RAM
26 wireless LAN communication unit 28 wireless LAN antenna 30 operation unit 32 operation reception unit 34 display unit 36 display control unit 38 mobile communication unit 39 mobile communication antenna 40 bus 100 mobile phone 102 wireless LAN communication unit 104 reception unit 106 determination unit 108 Reception unit 110 Authentication unit 112 Transmission unit 114 Recording unit 116 History storage unit 120 Terminal ID storage unit 122 Transmission unit 200 Control device 202 Wireless LAN communication unit 210 Transmitter 212 Discrimination unit 214 Transmission unit 220 Signal identification information storage unit 230 Receiver 232 Control signal reception unit 234 Traffic signal control unit 240 Reception unit 242 Level determination unit 244 Control unit

Claims (19)

In a traffic signal control system comprising a user portable terminal carried by a pedestrian and a control device for controlling a pedestrian traffic light,
The controller is
Wireless communication means for wirelessly communicating with the user portable terminal;
Discriminating means for discriminating whether the pedestrian traffic light is red or blue;
A transmission means for transmitting a signal notification signal indicating a determination result by the determination means to the user portable terminal existing in the vicinity of the pedestrian traffic light by the wireless communication means;
From the user portable terminal, control signal receiving means for receiving a traffic signal control signal to be a control request for changing a red signal to a blue signal by the wireless communication means,
In response to the traffic light control signal, control means for changing the pedestrian traffic light from red to blue,
The user portable terminal is
Wireless communication means for wirelessly communicating with the control device;
Notification signal receiving means for receiving the signal notification signal from the control device by the wireless communication means;
Determination means for determining whether the pedestrian traffic light is red or blue based on the signal notification signal received by the notification signal receiving means;
When the determination means determines that the pedestrian traffic light is red, the wireless communication means transmits the traffic signal control signal to the control device, and the pedestrian traffic light is blue by the determination means. A traffic signal control system that includes control signal transmission means that does not transmit the traffic signal control signal to the control device. In the traffic signal control system according to claim 1,
The user portable terminal is
Including accepting means for accepting a permission operation for transmitting the traffic light control signal to the traffic light for the pedestrian from the pedestrian,
The traffic signal control system, wherein the control signal transmission unit of the user portable terminal transmits the traffic signal control signal to the control device when the reception unit receives the permission operation. In the traffic signal control system according to claim 1 or 2,
The controller is
When the control means changes the pedestrian traffic light from red to blue according to the traffic light control signal received from one user portable terminal, a green signal notification signal indicating that the control to change to blue has already started Means for transmitting to a user portable terminal of the traffic signal control system. In the traffic signal control system according to claim 3,
The user portable terminal is
Means for receiving the green signal notification signal from the control device;
Means for prohibiting transmission of the traffic light control signal to the control signal transmission means when the green signal notification signal is received. In the traffic signal control system according to any one of claims 1 to 4,
The controller is
Means for detecting a received signal level from the user portable terminal;
Means for determining whether the received signal level is equal to or higher than a predetermined value;
When it is determined that the received signal level is equal to or higher than the predetermined value, the determination unit starts the determination, and when it is determined that the received signal level is not equal to or higher than the predetermined value, the determination unit determines the determination. Means for not starting, and further comprising a traffic signal control system. In the traffic signal control system according to any one of claims 1 to 5,
A traffic signal control system in which the control device and the user portable terminal are communicated by wireless LAN communication or Bluetooth communication. In the traffic signal control system according to any one of claims 1 to 6,
A traffic signal control system in which the control device and the user portable terminal communicate via a mobile phone network. The traffic signal control system according to any one of claims 1 to 7,
An IC tag for identifying the pedestrian traffic light is provided near the pedestrian traffic light,
The user portable terminal is
Reading means for reading the IC tag;
Transmitting the identification information of the read IC tag to the control device, and notifying the control device of a communication start notification,
The controller is
Means for receiving the communication start notification from the user portable terminal;
The transmission means of the control device includes:
A traffic signal control system that transmits the signal notification signal to the user portable terminal when the means for receiving the communication start notification receives the signal and determines that the pedestrian traffic light is red. In the traffic signal control system according to any one of claims 1 to 8,
The controller is
Means for determining whether or not the remaining time of the green light of the pedestrian traffic light is within a predetermined time;
Means for transmitting specific information to the user portable terminal by the wireless communication means when it is determined that the remaining time of the green light is within the predetermined time;
Means for receiving, from the user portable terminal, a green signal extension control signal that is a control request for extending the green signal for a predetermined time;
Means for extending the green signal for a predetermined time in accordance with the received green signal extension control signal,
The user portable terminal is
Means for receiving the specific information transmitted from the control device by the wireless communication means;
Means for determining, based on the received specific information, that the remaining time of the green light is within the predetermined time;
Means for transmitting the green signal extension control signal to the control device by the wireless communication means when it is determined that the remaining time of the green signal is within the predetermined time. In the traffic signal control system according to any one of claims 1 to 9,
The user portable terminal is
Navigation means for guiding the pedestrian to a desired destination;
A traffic light detection means for detecting a traffic light for a pedestrian present in the direction of travel of the pedestrian guided by the navigation means,
When the signal notification signal is received from the pedestrian traffic signal detected by the traffic signal detection means, the control signal transmission means of the user portable terminal transmits the traffic signal control signal to the control device by the wireless communication means. Traffic signal control system. In the traffic signal control system according to claim 10,
The user portable terminal is mounted on a vehicle,
The control signal transmitting means of the user portable terminal is a traffic signal control system that wirelessly transmits a traffic signal control signal for changing a vehicle traffic signal from red to blue to the control device. In the traffic signal control system according to any one of claims 1 to 11,
A traffic signal control system including means for recording a communication history between the user portable terminal and the control device. A traffic signal control method for controlling a pedestrian traffic light by a control device that wirelessly communicates with a user portable terminal carried by a pedestrian,
A procedure for the controller to determine whether the pedestrian traffic light is red or blue;
A procedure in which the control device transmits a signal notification signal indicating a determination result determined in the determined procedure to the user portable terminal existing in the vicinity of the pedestrian traffic light by the wireless communication;
The user portable terminal receives the signal notification signal from the control device by the wireless communication;
A procedure for determining whether the pedestrian traffic light is red or blue based on the signal notification signal received by the user portable terminal in the procedure of receiving the signal notification signal;
When the user portable terminal determines that the pedestrian traffic light is red, the user portable terminal transmits a traffic signal control signal that is a control request for changing a red signal to a blue signal to the control device by the wireless communication, and the walking When it is determined that the traffic signal for the passenger is blue, a procedure for not transmitting the traffic signal control signal to the control device;
The control device receives the signal control signal from the user portable terminal by the wireless communication,
The traffic signal control method including a procedure in which the control device changes the pedestrian traffic light from red to blue in response to the traffic signal control signal received in the procedure of receiving the traffic signal control signal. A portable terminal device carried by a pedestrian,
Wireless communication means for wireless communication with a control device for controlling a pedestrian traffic light near the pedestrian;
A notification signal receiving means for receiving, by the wireless communication means, a signal notification signal including a result of determining whether the pedestrian traffic light is red or blue from the control device;
Determination means for determining whether the pedestrian traffic light is red or blue based on the signal notification signal received by the notification signal receiving means;
When the determination means determines that the pedestrian traffic light is red, the wireless communication means transmits a traffic signal control signal that is a control request to change the red signal to a blue signal to the control device, and the determination And a control signal transmitting unit that does not transmit the traffic signal control signal to the control device when it is determined by the means that the pedestrian traffic light is blue. The mobile terminal device according to claim 14, wherein
A portable terminal device provided with a reception means for receiving a permission operation for transmitting the traffic signal control signal to the traffic signal for the pedestrian from the pedestrian. The portable terminal device according to claim 14 or 15,
A portable terminal device comprising means for communicating with the control device by wireless LAN communication or Bluetooth communication. The portable terminal device according to any one of claims 14 to 16,
A mobile terminal device comprising means for communicating with the control device via a mobile phone network. The mobile terminal device according to any one of claims 14 to 17,
Navigation means for guiding the pedestrian to a desired destination;
A traffic light detection means for detecting a traffic light for a pedestrian present in the direction of travel of the pedestrian guided by the navigation means,
The said control signal transmission means is a portable terminal device which transmits the said signal apparatus control signal to the said control apparatus by a radio | wireless communication means, when the said signal notification signal is received from the said pedestrian signal apparatus detected by the said signal apparatus detection means. The mobile terminal device according to claim 18,
Mounted on the vehicle,
The control signal transmission means is a portable terminal device that transmits a traffic signal control signal for changing a vehicle traffic signal from red to blue to the control device by wireless communication means.

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