JP2011108024A - Mobile terminal, signal control device, communication method, and signal control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain safety of a user passing a pedestrian crossing. <P>SOLUTION: A mobile terminal 110 communicates with a signal control device 130 for controlling the signal 120 of a pedestrian crossing. The mobile terminal 110 stores speed information indicating the passage speed of the user 111. The mobile terminal 110 receives distance information indicating the distance D of the pedestrian crossing 101 from the signal control device 130. The mobile terminal 110 calculates time required for the user 11 to pass the pedestrian crossing 101 on the basis of the stored speed information and the received distance information. The mobile terminal 110 transmits required time information indicating the calculated required time to the signal control device 130. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile terminal, a signal control device, a communication method, and a signal control method that perform communication.

  2. Description of the Related Art Conventionally, for example, for visually impaired people, a method of performing sound guidance at a pedestrian crossing has been used. Specifically, the user is notified of the period of the green light by sounding a specific sound during the period of the green light (traffic permission). In addition, a method has been devised in which a green light period is extended for a certain time when an extension button provided on a pedestrian crossing is pressed (see, for example, Patent Document 1 below). In addition, radio waves transmitted from the tip of the cane possessed by the user are detected by sensors provided at the start point, center point, and end point of the pedestrian crossing, and the signal is kept blue until it has crossed from the intermediate point. A method has been devised (for example, see Patent Document 2 below).

Japanese Patent Laid-Open No. 10-232993 JP-A-10-003594

  However, in the above-described conventional technology, there is a problem that the user may not be able to cross the pedestrian crossing within the period of the green light (traffic permission), and the safety of the user cannot be achieved. In addition, even if the green light extension button is pressed, those who start to cross the pedestrian crossing after the person who crosses the pedestrian crossing by pressing the extension button cannot cross the pedestrian crossing within the extended green light period. There is.

  In addition, in the case of a method in which sensors are installed at the start point, the central point, and the end point of the pedestrian crossing, if the green light period ends before the user reaches the central point of the pedestrian crossing, the green light period may be extended. There is a problem that the user cannot be secured.

  The disclosed portable terminal, signal control device, communication method, and signal control method are intended to solve the above-described problems, and are intended to ensure the safety of users who cross a pedestrian crossing.

  In order to solve the above-described problems and achieve the object, a first solution means according to the disclosed technology is a portable terminal that communicates with a signal control device that controls a traffic light at a pedestrian crossing, and indicates a user's travel speed. A speed storage unit that stores speed information, a reception unit that receives distance information indicating the distance of the pedestrian crossing from the signal control device, speed information stored by the speed storage unit, and received by the reception unit A calculation unit that calculates a time required for the user to cross the pedestrian crossing based on the distance information, and a transmission unit that transmits the required time information indicating the required time calculated by the calculation unit to the signal control device. It is a requirement to have.

  The second solving means according to the disclosed technique is a signal control device that controls a traffic signal of a pedestrian crossing, a distance storage unit that stores distance information indicating a distance of the pedestrian crossing, and a user who passes the pedestrian crossing. A transmitter that transmits the distance information stored in the distance storage unit to the portable terminal that the user possesses, and the portable terminal that is calculated by the portable terminal based on the distance information transmitted by the transmitter. Based on the required time information received by the receiving unit that receives the required time information indicating the required time for passing, the permission period for the traffic signal to notify the user of the permission to pass the pedestrian crossing is extended. It is a requirement to provide a control unit.

  The third solving means according to the disclosed technique is a signal control device that controls a traffic signal of a pedestrian crossing, a distance storage unit that stores distance information indicating a distance of the pedestrian crossing, and a user of the user who passes the pedestrian crossing. The use based on a receiving unit that receives speed information indicating a traffic speed from a portable terminal possessed by the user, distance information stored by the distance storage unit, and speed information received by the receiving unit. Based on the time calculated by the calculation unit and the time calculated by the calculation unit, the traffic signal extends the permission period for notifying the user of the crossing crossing permission. And a control unit.

  According to the disclosed portable terminal, signal control device, communication method, and signal control method, there is an effect that it is possible to ensure the safety of the user who passes the pedestrian crossing.

1 is a diagram illustrating a communication system according to a first exemplary embodiment. 1 is a block diagram illustrating configurations of a mobile terminal and a signal control device according to a first embodiment; 3 is a flowchart illustrating an example of an operation of the mobile terminal according to the first exemplary embodiment. 3 is a flowchart showing an example of the operation of the signal control apparatus according to the first exemplary embodiment; FIG. 3 is a sequence diagram illustrating an example of an operation of the communication system according to the first exemplary embodiment. FIG. 10 is a sequence diagram illustrating another example of the operation of the communication system according to the first exemplary embodiment. FIG. 3 is a block diagram showing a configuration of a mobile terminal according to a second exemplary embodiment. 10 is a flowchart illustrating an example of a speed measurement operation of the mobile terminal according to the second exemplary embodiment. It is a block diagram which shows the modification of the portable terminal shown in FIG. It is a flowchart which shows an example of the step measurement operation | movement of the portable terminal shown in FIG. FIG. 6 is a block diagram showing a configuration of a mobile terminal according to a third exemplary embodiment. 10 is a flowchart illustrating an example of the operation of the mobile terminal according to the third exemplary embodiment. FIG. 10 is a sequence diagram illustrating an example of operation of the communication system according to the third exemplary embodiment. It is a block diagram which shows the modification 1 of the portable terminal shown in FIG. It is a flowchart which shows an example of operation | movement of the portable terminal shown in FIG. It is a block diagram which shows the modification 2 of the portable terminal shown in FIG. It is a flowchart which shows an example of operation | movement of the portable terminal shown in FIG. FIG. 6 is a block diagram illustrating configurations of a mobile terminal and a signal control device according to a fourth embodiment. 10 is a flowchart illustrating an example of the operation of the mobile terminal according to the fourth exemplary embodiment. 10 is a flowchart illustrating an example of an operation of the signal control apparatus according to the fourth embodiment. FIG. 10 is a sequence diagram illustrating an example of operation of the communication system according to the fourth exemplary embodiment. It is a block diagram which shows the structural example of a portable terminal. It is a figure which shows an example of the detection method of the traffic start and the traffic end of a pedestrian crossing. It is a block diagram which shows the structural example of the portable terminal which detects the traffic start and the traffic end of a pedestrian crossing.

  Exemplary embodiments of a disclosed mobile terminal, signal control device, communication method, and signal control method will be described below in detail with reference to the accompanying drawings. The disclosed mobile terminal, signal control device, communication method, and signal control method are the time required for the user to cross the pedestrian crossing based on the pedestrian crossing distance information transmitted from the signal control device to the user's mobile terminal. Is calculated and notified to the signal control device, and the user is made safe by extending the period of the green light.

(Embodiment 1)
FIG. 1 is a diagram of a communication system according to the first embodiment. As illustrated in FIG. 1, the communication system 100 according to the first embodiment includes a mobile terminal 110, a traffic light 120, and a signal control device 130. The mobile terminal 110 is a mobile terminal such as a mobile phone carried by the user 111 and has a wireless communication function. The portable terminal 110 performs wireless communication with the signal control device 130.

  The traffic signal 120 is provided in the pedestrian crossing 101 and notifies the user 111 of whether the pedestrian crossing 101 is allowed to pass. For example, the traffic light 120 notifies the user 111 of the passage permission of the pedestrian crossing 101 by turning on the green light 121. In addition, the traffic light 120 notifies the user 111 that the remaining time of the passage permission of the pedestrian crossing 101 is less than a predetermined time (warning period) by blinking the green light 121. The traffic light 120 notifies the user 111 that the pedestrian crossing 101 is not allowed to pass by turning on the red signal 122.

  However, the notification of whether or not the pedestrian crossing 101 is allowed to pass by the traffic light 120 is not limited to the lighting and blinking of the blue signal 121 and the red signal 122, but may be notifications by other signals, or notifications by voice through a speaker or the like. There may be. In addition, here, a traffic light 120 provided at the right end of the pedestrian crossing 101, which is used when the user 111 passes from the left end to the right end of the pedestrian crossing 101, is illustrated. May be provided.

  The signal control device 130 controls the traffic light 120. For example, the signal control device 130 periodically switches the state of the traffic light 120 in the order of the lighting state of the blue signal 121, the blinking state of the blue signal 121, and the lighting state of the red signal 122. Further, the signal control device 130 has a function of performing wireless communication with the mobile terminal 110. The signal control device 130 stores distance information indicating the distance D of the pedestrian crossing 101.

  FIG. 2 is a block diagram of the configuration of the mobile terminal and the signal control device according to the first embodiment. In FIG. 2, the same components as those shown in FIG. As illustrated in FIG. 2, the mobile terminal 110 includes a speed storage unit 211, a reception unit 212, a calculation unit 213, and a transmission unit 214.

  The speed storage unit 211 stores speed information indicating the travel speed of the user 111. For example, the travel speed is the walking speed of the user 111. Alternatively, for example, when the user 111 is a wheelchair user, the travel speed may be the traveling speed of the wheelchair. The receiving unit 212 receives distance information indicating the distance D of the pedestrian crossing 101 from the signal control device 130 by wireless communication. The reception unit 212 outputs the received distance information to the calculation unit 213.

  The calculation unit 213 calculates the time required for the pedestrian crossing 101 to pass by the user 111 based on the speed information stored in the speed storage unit 211 and the distance information output from the receiving unit 212 (time required for passing). calculate. Specifically, the calculation unit 213 calculates the required time by dividing the distance D indicated by the distance information by the travel speed of the user 111 indicated by the speed information. The calculation unit 213 outputs the required time information indicating the calculated required time to the transmission unit 214.

  The transmission unit 214 transmits the required time information output from the calculation unit 213 to the signal control device 130 by wireless communication. In addition, when the mobile terminal 110 detects that the user 111 starts crossing the pedestrian crossing 101, the transmission unit 214 transmits a crossing start notification to the signal control device 130. In addition, when the mobile terminal 110 detects that the user 111 has crossed the pedestrian crossing 101, the transmission unit 214 transmits a crossing end notification to the signal control device 130.

  The signal control device 130 includes a distance storage unit 221, a transmission unit 222, a reception unit 223, and a control unit 224. The distance storage unit 221 stores distance information indicating the distance D of the pedestrian crossing 101. The transmission unit 222 transmits the distance information stored in the distance storage unit 221 to the mobile terminal 110 by wireless communication. For example, the transmission unit 222 transmits the distance information when the reception unit 223 receives a traffic start notification from the mobile terminal 110.

  The receiving unit 223 receives the required time information from the mobile terminal 110 by wireless communication, and outputs the received required time information to the control unit 224. The required time information is information indicating the required time calculated by the mobile terminal 110 based on the distance information transmitted by the transmission unit 222. The receiving unit 223 outputs the received required time information to the control unit 224.

  The control unit 224 controls the signal state of the traffic light 120. For example, when the control unit 224 outputs a green signal lighting instruction to the traffic light 120, the red signal 122 is turned off and the blue signal 121 is turned on. When the control unit 224 outputs a green signal blink instruction to the traffic light 120, the red signal 122 is turned off and the blue signal 121 blinks. When the control unit 224 outputs a red signal lighting instruction to the traffic light 120, the blue signal 121 is turned off and the red signal 122 is turned on.

  For example, the control unit 224 periodically outputs to the traffic signal 120 in the order of a green signal lighting instruction, a green signal blinking instruction, and a red signal lighting instruction. A period from when the green signal lighting instruction is output to when the green signal blinking instruction is output is defined as a green signal lighting period. The period from the output of the blue signal blinking instruction to the output of the red signal lighting instruction is defined as the blue signal blinking period. A period from when the red signal lighting instruction is output to when the blue signal lighting instruction is output is defined as a red signal lighting period. The lengths of the green signal lighting period, the green signal blinking period, and the red signal lighting period are preset lengths in the initial state.

  Further, the control unit 224 extends the period (the green signal lighting period or the green signal blinking period) in which the traffic light 120 notifies the user 111 of the passage permission of the pedestrian crossing 101 based on the required time information received by the receiving unit 223. . For example, the control unit 224 extends the green light blinking period based on the required time information. Thereby, the green light blinking period can be extended until the user 111 has crossed the pedestrian crossing 101. Further, the control unit 224 may extend the green light lighting period based on the required time information.

  The memory of the signal control device 130 stores a passing list indicating portable terminals passing the pedestrian crossing 101 during the green light lighting period. When the reception start notification is received by the receiving unit 223 during the green light lighting period, the signal control device 130 adds the portable terminal (for example, the portable terminal 110) that transmitted the passage start notification to the passing list. In addition, when the traffic ending notification is received by the receiving unit 223 during the green light lighting period, the signal control device 130 deletes the mobile terminal that has transmitted the traffic ending notification from the passing list.

  FIG. 3 is a flowchart of an example of the operation of the mobile terminal according to the first embodiment. The mobile terminal 110 first determines whether or not the user 111 has started passing the pedestrian crossing 101 (step S301), and waits until the user 111 starts passing (step S301: No loop). When the user 111 starts to pass (step S301: Yes), a pass start notification is transmitted to the signal control device 130 (step S302).

  Next, it is determined whether distance information has been received from the signal control device 130 (step S303), and the process waits until the distance information is received (step S303: No loop). When the distance information is received (step S303: Yes), the speed information stored in the speed storage unit 211 is acquired (step S304). Next, the time required for the user 111 to pass the pedestrian crossing 101 is calculated based on the distance information received in step S303 and the speed information acquired in step S304 (step S305).

  Next, the required time information indicating the required time calculated in step S305 is transmitted to the signal control device 130 (step S306). Next, it is determined whether or not the user 111 has finished passing the pedestrian crossing 101 (step S307) and waits until the passing is finished (step S307: No loop). When the traffic ends (step S307: Yes), a traffic end notification is transmitted to the signal control device 130 (step S308).

  By repeating the above steps, when the user 111 starts to cross the pedestrian crossing 101, the distance information is received from the signal control device 130, and the time required for the user 111 to pass the pedestrian crossing 101 is calculated and calculated. The required time can be notified to the signal control device 130. Thereby, since the signal control apparatus 130 can acquire the time until the user 111 has crossed the pedestrian crossing 101, the green light lighting period and the green signal blinking period are extended until the user 111 has completely crossed the pedestrian crossing 101. can do.

  FIG. 4 is a flowchart of an example of the operation of the signal control apparatus according to the first embodiment. For example, when the red signal lighting period has elapsed, the signal control device 130 executes the following steps. First, a green signal lighting instruction is output to the traffic light 120 (step S401). Next, it is determined whether or not the green light lighting period has ended (step S402). The green light lighting period is, for example, a period from when the green light lighting instruction is output in step S401 until a predetermined time elapses.

  In step S402, when the green light lighting period has not ended (step S402: No), it is determined whether or not a traffic start notification has been received from a mobile terminal (for example, mobile terminal 110) (step S403). When the traffic start notification is received (step S403: Yes), the mobile terminal that has transmitted the traffic start notification is added to the passing list (step S404). Next, the distance information memorize | stored in the distance memory | storage part 221 is acquired (step S405).

  Next, the distance information acquired by step S405 is transmitted to a portable terminal (step S406). Next, the required time information is received from the portable terminal (step S407), and the process returns to step S402. In step S403, when the traffic start notification has not been received (step S403: No), it is determined whether a traffic end notification has been received from the mobile terminal (for example, mobile terminal 110) (step S408).

  In step S408, when the traffic end notification is not received from the portable terminal (step S408: No), the process returns to step S402. When the traffic end notification is received (step S408: Yes), the mobile terminal that has transmitted the traffic end notification is deleted from the passing list (step S409), and the process returns to step S402.

  In step S402, when the green light lighting period ends (step S402: Yes), a green signal blinking instruction is output to the traffic light 120 (step S410). Next, it is determined whether or not the mobile terminal exists in the passing list (step S411). When there is no mobile terminal in the passing list (step S411: No), the process proceeds to step S414.

  In step S411, when a mobile terminal exists in the passing list (step S411: Yes), an extension time based on the required time information received in step S407 is calculated (step S412). Next, the green light blinking period is extended by the extension time calculated in step S412 (step S413).

  Next, it is determined whether or not the green light blinking period has ended (step S414), and the process waits until the green light blinking period ends (step S414: No loop). In the initial state, the green light blinking period is a period from when the green signal blinking instruction is output in step S410, for example, until a predetermined time elapses. However, the green light blinking period may be extended by step S413.

  When the green light blinking period ends in step S414 (step S414: Yes), a red signal lighting instruction is output to the traffic light 120 (step S415). Through the above steps, the mobile terminal that is passing the pedestrian crossing 101 is managed in the passing list, and when there is a mobile terminal that is passing when the green light blinking starts, the green light blinking period can be extended.

  FIG. 5 is a sequence diagram of an example of the operation of the communication system according to the first embodiment. In FIG. 5, mobile terminals 110 </ b> A and 110 </ b> B are mobile terminals similar to the mobile terminal 110, respectively. First, the signal control device 130 outputs a green signal lighting instruction to the traffic light 120 (step S501). Thereby, the green signal 121 of the traffic light 120 is turned on. The green light lighting period T1 is a period until a predetermined time elapses from step S501.

  Next, it is assumed that 110 A of portable terminals detect the start of the passage of the pedestrian crossing 101 by the user of 110 A of portable terminals (step S502). Next, 110 A of portable terminals transmit a traffic start notification to the signal control apparatus 130 (step S503). Next, the signal control device 130 adds the mobile terminal 110A to the on-going list (step S504).

  Next, the signal control device 130 transmits distance information to the mobile terminal 110A (step S505). Next, 110 A of portable terminals calculate the time required for the pedestrian crossing 101 to pass based on the distance information transmitted by step S505 (step S506). Next, 110 A of portable terminals transmit the required time information which shows the required time calculated by step S506 to the signal control apparatus 130 (step S507).

  Next, it is assumed that the mobile terminal 110B detects the start of passage of the pedestrian crossing 101 by the user of the mobile terminal 110B (step S508). Next, the portable terminal 110B transmits a traffic start notification to the signal control device 130 (step S509). Next, the signal control device 130 adds the mobile terminal 110B to the passing list (step S510).

  Next, the signal control apparatus 130 transmits distance information to the portable terminal 110B (step S511). Next, the portable terminal 110B calculates the time required for the pedestrian crossing 101 to pass based on the distance information transmitted in step S511 (step S512). Next, the portable terminal 110B transmits the required time information indicating the required time calculated in step S512 to the signal control device 130 (step S513).

  Next, it is assumed that the mobile terminal 110A detects the end of passage of the pedestrian crossing 101 by the user of the mobile terminal 110A (step S514). Next, 110 A of portable terminals transmit a traffic end notification to the signal control apparatus 130 (step S515). Next, the signal control device 130 deletes the mobile terminal 110A from the passing list (step S516).

  Next, it is assumed that the green light lighting period T1 ends. When the green light lighting period T1 ends, the signal control device 130 outputs a green signal blinking instruction to the traffic light 120 (step S517). Thereby, the green signal 121 of the traffic light 120 is in a blinking state. The green light blinking period T2 is a period until a predetermined time elapses from step S517. If the green signal blinking period T2 is not extended, the signal control device 130 outputs a red signal lighting instruction to the traffic light 120 after the green signal blinking period T2 has elapsed. Next, the signal control device 130 calculates the extension time of the green light blinking period T2 (step S518).

  In step S518, the signal control device 130 calculates the extension time so that the green light flashing period T2 is extended until the time when the user of the mobile terminal 110B remaining in the passing list is expected to finish passing the pedestrian crossing 101. To do. For example, the signal control device 130 sets (passage start time of the mobile terminal 110B) + (required travel time of the mobile terminal 110B) − (flashing start time of the green signal) − (blue signal flashing period T2 in the initial state) as the extension time. calculate.

  The traffic start time of the mobile terminal 110B is the time when the traffic start notification is transmitted in step S509, for example. The required time for passing the mobile terminal 110B is the required time indicated by the required time information transmitted in step S513, for example. The green signal blinking start time is, for example, the time when the green signal blinking instruction is output in step S517. The green signal blinking period T3 indicates a period in which the green signal blinking period T2 is extended by the extended time calculated in step S518.

  Next, it is assumed that the mobile terminal 110B detects the end of passage of the pedestrian crossing 101 by the user of the mobile terminal 110B (step S519). Next, the portable terminal 110B transmits a traffic end notification to the signal control device 130 (step S520). On the other hand, the signal control device 130 does not need to perform processing such as deletion from the on-going list of the mobile terminal 110B because the traffic light 120 is in the green blinking state in step S517.

  Next, it is assumed that the green light blinking period T3 ends. When the green signal blinking period T3 ends, the signal control device 130 then outputs a red signal lighting instruction to the traffic light 120 (step S521). Thereby, the red signal 122 of the traffic light 120 is turned on. In this way, by extending the green light blinking period until the user of the portable terminal 110B finishes the passage of the pedestrian crossing 101, the red signal 122 of the traffic light 120 is displayed while the user of the portable terminal 110B is passing the pedestrian crossing 101. It is possible to avoid the lighting state.

  Here, since the mobile terminal 110B is the only mobile terminal remaining in the passing list at the time when the green light lighting period T1 has elapsed, the extension required for the user of the mobile terminal 110B to end the passage of the pedestrian crossing 101. Time was calculated. On the other hand, when a plurality of portable terminals remain in the passing list at the time when the green light lighting period T1 has elapsed, the extension time is set for the portable terminals that are expected to end the passage of each portable terminal last. Is calculated. As a result, the green light blinking period can be extended until each passing user finishes passing the pedestrian crossing 101 when the green light lighting period T1 has elapsed.

  FIG. 6 is a sequence diagram illustrating another example of the operation of the communication system according to the first embodiment. Steps S601 to S618 shown in FIG. 6 are the same as steps S501 to S518 shown in FIG. In FIG. 6, the mobile terminal 110 </ b> C is a mobile terminal similar to the mobile terminal 110. Next to step S618, it is assumed that the mobile terminal 110C detects the start of passage of the pedestrian crossing 101 by the user of the mobile terminal 110C in a state where the green signal 121 of the traffic light 120 blinks (step S619).

  Next, 110 C of portable terminals transmit a traffic start notification to the signal control apparatus 130 (step S620). In response to the traffic start notification transmitted in step S620, the signal control device 130 already transmits the traffic stop instruction to the mobile terminal 110C (step S621) because the green signal 121 has already blinked. Further, the control unit 224 of the signal control device 130 does not extend the green light blinking period T3.

  Next, the mobile terminal 110C notifies the user of the mobile terminal 110C that the passage is stopped (step S622). The notification in step S622 is performed by, for example, voice from a speaker included in the mobile terminal 110C, display on a display included in the mobile terminal 110C, vibration by a vibration function provided in the mobile terminal 110C, or the like. Step S623 shown in FIG. 6 is the same as step S521 shown in FIG.

  As described above, when the user of the mobile terminal 110C starts to cross the pedestrian crossing 101 during the green signal blinking period T3 (warning period), the green signal blinking period T3 is excessively set not to extend the green signal blinking period T3. It can be prevented from being obstructed by being extended. In this case, by transmitting a traffic stop instruction to the mobile terminal 110C, it is possible to prompt the user of the mobile terminal 110C to stop the traffic on the pedestrian crossing 101. Thereby, the safety of the user of the portable terminal 110C can be achieved.

  Thus, in the communication system 100 according to the first embodiment, the distance information is transmitted from the signal control device 130 to the mobile terminal 110, and the travel time calculated by the mobile terminal 110 based on the transmitted distance information is signaled. It transmits to the control apparatus 130. Thereby, in the signal control apparatus 130, the lighting or blinking period of the green light 121 can be extended until the user 111 has crossed the pedestrian crossing 101, and the safety of the user 111 can be achieved.

(Embodiment 2)
The communication system according to the second exemplary embodiment is the same as the communication system 100 illustrated in FIG.

  FIG. 7 is a block diagram of a configuration of the mobile terminal according to the second embodiment. In FIG. 7, the same components as those shown in FIG. As shown in FIG. 7, the mobile terminal 110 according to the second embodiment includes a stride storage unit 711, a step count counter 712, and a speed measurement unit 713 in addition to the configuration shown in FIG. 2.

  The stride storage unit 711 stores stride information indicating the stride of the user 111. The step count counter 712 counts the number of steps of the user 111. The step counter 712 counts the number of steps by sensing vibration of the mobile terminal 110, for example. The step count counter 712 notifies the speed measurement unit 713 of step count information indicating the counted number of steps.

  The speed measurement unit 713 measures the travel speed of the user 111 based on the number of steps notified from the step count counter 712 and the step length information stored in the step length storage unit 711. Specifically, the speed measurement unit 713 calculates a travel distance within a predetermined time by multiplying the number of steps counted by the step count counter 712 within a predetermined time by the step indicated by the stride information. Then, the speed measuring unit 713 calculates the traveling speed by dividing the calculated traveling distance by a predetermined time. The speed measurement unit 713 stores speed information indicating the measured progress speed in the speed storage unit 211.

  FIG. 8 is a flowchart of an example of the speed measurement operation of the mobile terminal according to the second embodiment. For example, the portable terminal 110 performs the steps shown in FIG. 8 when the portable terminal 110 is activated or when the user 111 inputs a command. First, the user 111 is notified of the start of speed measurement (step S801), and the user 111 is prompted to perform normal walking. The notification in step S801 is performed by, for example, sound from a speaker included in the mobile terminal 110, display on a display included in the mobile terminal 110, or the like.

  Next, the stride information stored in the stride storage unit 711 is acquired (step S802). Next, the number of steps of the user 111 within a predetermined time is counted (step S803). Next, the walking distance is calculated by multiplying the number of steps counted in step S803 by the step indicated by the step information acquired in step S802 (step S804).

  Next, the travel speed of the user 111 is calculated by dividing the walking distance calculated in step S804 by a predetermined time (step S805). Next, speed information indicating the traffic speed calculated in step S805 is stored in the speed storage unit 211 (step S806). Next, the end of speed measurement is notified to the user 111 (step S807), and the series of operations is terminated. Thereby, the user 111 can measure the traveling speed of the user 111 in advance by performing normal walking, and can store it in the speed storage unit 211.

  FIG. 9 is a block diagram illustrating a modification of the mobile terminal illustrated in FIG. In FIG. 9, the same components as those shown in FIG. As illustrated in FIG. 9, the mobile terminal 110 according to the second embodiment may include a stride measuring unit 911 in addition to the configuration illustrated in FIG. 7. The stride measurement unit 911 measures the stride of the user 111 based on the distance information output from the reception unit 212 and the step count notified from the step count counter 712.

  Specifically, the stride measuring unit 911 calculates the stride of the user 111 by dividing the distance indicated by the distance information by the number of steps counted by the step counter 712 while the user 111 is passing the pedestrian crossing 101. . The stride measurement unit 911 stores stride information indicating the measured stride in the stride storage unit 711.

  FIG. 10 is a flowchart showing an example of the stride measurement operation of the mobile terminal shown in FIG. The mobile terminal 110 first determines whether or not the user 111 has started passing the pedestrian crossing 101 (step S1001), and waits until the user 111 starts passing (step S1001: No loop). When the user 111 starts to pass (step S1001: Yes), the user 111 starts counting the number of steps (step S1002).

  Next, a traffic start notification is transmitted to the signal control device 130 (step S1003). Next, it is determined whether distance information has been received from the signal control device 130 (step S1004), and the process waits until the distance information is received (step S1004: No loop). When the distance information is received (step S1004: Yes), it is determined whether the user 111 has finished passing the pedestrian crossing 101 (step S1005) and waits until the passing is finished (step S1005: No loop). When the traffic is terminated (step S1005: Yes), the counting of the number of steps of the user 111 is terminated (step S1006).

  Next, the stride of the user 111 is calculated by dividing the distance indicated by the distance information received in step S1004 by the number of steps of the user 111 counted between step S1002 and step S1006 (step S1007). . Next, stride information indicating the stride calculated in step S1007 is stored in the stride storage unit 711 (step S1008), and the series of operations is terminated. Accordingly, the user 111 can store his / her stride in the stride storage unit 711 by passing through the pedestrian crossing 101 even if the user's own stride is not measured and stored in the stride storage unit 711 in advance. it can.

  As described above, in the communication system 100 according to the second embodiment, the travel speed is measured by measuring the travel speed based on the stride indicated by the stride information and the number of steps of the user 111, whereby the travel speed is obtained by the user 111 walking. Can be measured. Thereby, even if the user 111 does not measure his / her own traveling speed, the time required for passing the pedestrian crossing 101 is calculated and the required time information is transmitted to the signal control device 130, thereby ensuring the safety of the user 111. It becomes possible.

  Further, the stride of the user 111 can be measured based on the distance information received from the signal control device 130 and the number of steps of the user 111. Thereby, even if the user 111 does not measure his / her own stride, the required time for passing the pedestrian crossing 101 is calculated, and the required time information is transmitted to the signal control device 130 to make the user 111 safe. Is possible.

(Embodiment 3)
The communication system according to the third embodiment is the same as the communication system 100 shown in FIG.

  FIG. 11 is a block diagram of the configuration of the mobile terminal according to the third embodiment. In FIG. 11, the same components as those shown in FIG. As illustrated in FIG. 11, the mobile terminal 110 according to the third embodiment includes a stride storage unit 1111, a step count calculation unit 1112, and a notification unit 1113 in addition to the configuration illustrated in FIG. 2.

  The stride storage unit 1111 stores stride information indicating the stride of the user 111. The step count calculation unit 1112 calculates the number of steps required for the user 111 to pass the pedestrian crossing 101 based on the distance information output from the reception unit 212 and the step length information stored in the step length storage unit 1111. Specifically, the step count calculation unit 1112 calculates the required step count by dividing the distance indicated by the distance information by the stride indicated by the stride information. The step count calculation unit 1112 outputs the calculated required step count to the notification unit 1113.

  The notification unit 1113 notifies the user 111 of the required number of steps output from the step calculation unit 1112. The notification is performed by, for example, sound from a speaker provided in the mobile terminal 110 or display on a display provided in the mobile terminal 110. Thereby, the user 111 can know the number of steps until the user crosses the pedestrian crossing 101. For example, by notifying the user 111 of the required number of steps by voice from a speaker provided in the mobile terminal 110, for example, a visually handicapped person can pass through the pedestrian crossing 101 with confidence.

  Further, the mobile terminal 110 shown in FIG. 11 may be provided with the step count counter 712 and the speed measuring unit 713 shown in FIG. 7 to automatically measure the traveling speed stored in the speed storage unit 211. Further, the portable terminal 110 shown in FIG. 11 may be provided with the step count counter 712 and the stride measurement unit 911 shown in FIG. 9 to automatically measure the stride stored in the stride storage unit 1111.

  FIG. 12 is a flowchart of an example of the operation of the mobile terminal according to the third embodiment. Steps S1201 to S1206 shown in FIG. 12 are the same as steps S301 to S306 shown in FIG. The portable terminal 110 acquires step information stored in the step storage unit 1111 after step S1206 (step S1207).

  Next, the required number of steps is calculated based on the distance information received in step S1203 and the stride information acquired in step S1207 (step S1208). Next, the user 111 is notified of the required number of steps calculated in step S1208 (step S1209). Steps S1210 and S1211 shown in FIG. 12 are the same as steps S307 and S308 shown in FIG. As a result, the user 111 can know the number of steps taken until the pedestrian crossing 101 starts to pass.

  FIG. 13 is a sequence diagram of an example of the operation of the communication system according to the third embodiment. In FIG. 13, mobile terminals 110 </ b> A and 110 </ b> B are mobile terminals similar to the mobile terminal 110, respectively. The users 111A and 111B are users of the mobile terminals 110A and 110B, respectively. Steps S1301 to S1307 shown in FIG. 13 are the same as steps S501 to S507 shown in FIG.

  Following step S1307, the mobile terminal 110A calculates the number of steps required for the pedestrian crossing 101 to pass by the user 111A based on the distance information transmitted in step S1305 (step S1308). Next, the mobile terminal 110A notifies the user 111A of the required number of steps calculated in step S1308 (step S1309).

  Steps S1310 to S1315 shown in FIG. 13 are the same as steps S508 to S513 shown in FIG. Following step S1315, the mobile terminal 110B calculates the number of steps required for the pedestrian crossing 101 to pass by the user 111B based on the distance information transmitted in step S1313 (step S1316). Next, the portable terminal 110B notifies the user 111B of the required number of steps calculated in step S1316 (step S1317). Steps S1318 to S1325 shown in FIG. 13 are the same as steps S514 to S521 shown in FIG.

  FIG. 14 is a block diagram showing a first modification of the mobile terminal shown in FIG. 14, the same components as those illustrated in FIG. 11 are denoted by the same reference numerals, and description thereof is omitted. As illustrated in FIG. 14, the calculation unit 213 of the mobile terminal 110 according to the third embodiment outputs the required time information indicating the calculated required time to the transmission unit 214 and the notification unit 1113.

  The notification unit 1113 notifies the user 111 of the required time for passing the pedestrian crossing 101 indicated by the required time information output from the calculation unit 213. In this configuration, the stride storage unit 1111 and the step count calculation unit 1112 illustrated in FIG. 11 may be omitted.

  FIG. 15 is a flowchart showing an example of the operation of the mobile terminal shown in FIG. Steps S1501 to S1506 shown in FIG. 15 are the same as steps S301 to S306 shown in FIG. The portable terminal 110 notifies the user 111 of the required time calculated by step S1505 after step S1506 (step S1507). Steps S1508 and S1509 shown in FIG. 15 are the same as steps S307 and S308 shown in FIG. As a result, the user 111 can know the time required until the pedestrian crossing 101 starts to pass.

  FIG. 16 is a block diagram showing a second modification of the mobile terminal shown in FIG. In FIG. 16, the same components as those shown in FIG. 11 or FIG. As illustrated in FIG. 16, the transmission unit 222 of the signal control device 130 according to the third embodiment transmits distance information and remaining time information to the mobile terminal 110.

  The remaining time information is information indicating the remaining time of the permission period (green light lighting period and green light blinking period) for notifying the passage permission of the pedestrian crossing 101. For example, the transmission unit 222 acquires the remaining time information from the control unit 224 and transmits the remaining time information to the mobile terminal 110. The reception unit 212 of the mobile terminal 110 receives the remaining time information transmitted from the signal control device 130 and outputs the received remaining time information to the notification unit 1113. The notification unit 1113 notifies the user 111 of the remaining time indicated by the remaining time information output from the reception unit 212.

  FIG. 17 is a flowchart showing an example of the operation of the mobile terminal shown in FIG. Steps S1701 and S1702 shown in FIG. 17 are the same as steps S301 and S302 shown in FIG. Following step S1702, the portable terminal 110 determines whether distance information and remaining time information have been received from the signal control device 130 (step S1703), and waits until it receives distance information and remaining time information (step S1703). : No loop). When the distance information and the remaining time information are received (step S1703: YES), the process proceeds to step S1704.

  Steps S1704 to S1706 shown in FIG. 17 are the same as steps S304 to S306 shown in FIG. Following step S1706, the remaining time indicated by the remaining time information received in step S1703 is notified to the user 111 (step S1707). Steps S1708 and S1709 shown in FIG. 17 are the same as steps S307 and S308 shown in FIG. Thereby, the user 111 can know time until the red signal 122 of the traffic light 120 lights up at the time of the passage start of the pedestrian crossing 101.

  As described above, in the communication system 100 according to the third embodiment, the number of steps required for the pedestrian crossing 101 to pass by the user 111 can be calculated based on the stride information and the distance information and notified to the user 111. Thereby, since the user 111 can know the number of steps until the pedestrian crossing 101 is crossed, the user 111 can pass through the pedestrian crossing 101 with peace of mind.

  Further, the mobile terminal 110 may notify the user 111 of the required time calculated based on the distance information. Thereby, since the user 111 can know the time required to cross the pedestrian crossing 101, the user 111 can pass through the pedestrian crossing 101 with peace of mind. Alternatively, the remaining time information may be transmitted from the signal control device 130 to the mobile terminal 110 to notify the user 111 of the remaining time. Thereby, since the user 111 can know the time until the red signal 122 of the traffic light 120 is turned on, the user 111 can pass through the pedestrian crossing 101 with peace of mind.

(Embodiment 4)
The communication system according to the fourth embodiment is similar to the communication system 100 shown in FIG.

  FIG. 18 is a block diagram of the configuration of the mobile terminal and the signal control device according to the fourth embodiment. In FIG. 18, the same components as those shown in FIG. As illustrated in FIG. 18, the mobile terminal 110 includes a speed storage unit 211 and a transmission unit 214. When the mobile terminal 110 detects that the user 111 starts to cross the pedestrian crossing 101, the transmission unit 214 transmits the speed information and the crossing start notification stored in the speed storage unit 211 to the signal control device 130.

  The signal control device 130 includes a distance storage unit 221, a reception unit 223, a control unit 224, and a calculation unit 1811. The receiving unit 223 outputs the received speed information to the calculating unit 1811. The calculation unit 1811 calculates the time required for the user 111 to pass the pedestrian crossing 101 based on the distance information stored in the distance storage unit 221 and the speed information output from the reception unit 223. Specifically, the calculation unit 1811 calculates the required time by dividing the distance D indicated by the distance information by the travel speed of the user 111 indicated by the speed information.

  FIG. 19 is a flowchart of an example of the operation of the mobile terminal according to the fourth embodiment. The mobile terminal 110 first determines whether or not the user 111 has started passing the pedestrian crossing 101 (step S1901), and waits until the user 111 starts passing (step S1901: No loop). When the user 111 starts to pass (step S1901: Yes), the speed information stored in the speed storage unit 211 is acquired (step S1902).

  Next, the traffic start notification and the speed information acquired in step S1902 are transmitted to the signal control device 130 (step S1903). As a result, when the user 111 starts to pass the pedestrian crossing 101, the traffic speed of the user 111 can be notified to the signal control device 130. Therefore, it is possible to calculate the time required for the user 111 to pass the pedestrian crossing 101 in the signal control device 130 and extend the green light lighting period and the green light blinking period until the user 111 has crossed the pedestrian crossing 101. .

  FIG. 20 is a flowchart of an example of the operation of the signal control apparatus according to the fourth embodiment. Steps S2001 to S2005 shown in FIG. 20 are the same as steps S401 to S405 shown in FIG. However, in step S2003, it is determined whether or not a traffic start notification and speed information are received from the portable terminal (step S2003). Following step S2005, a required time based on the speed information received in step S2003 and the distance information acquired in step S2005 is calculated (step S2006).

  Steps S2007 to S2014 shown in FIG. 20 are the same as steps S408 to S415 shown in FIG. However, in step S2012, the extension time is calculated based on the required time calculated in step S2006 (step S2012). Through the above steps, the signal control device 130 calculates the required time, and the green light lighting period and the green light blinking period can be extended until the user 111 has crossed the pedestrian crossing 101.

  FIG. 21 is a sequence diagram illustrating an example of the operation of the communication system according to the fourth embodiment. Steps S2101 and S2102 shown in FIG. 21 are the same as steps S501 and S502 shown in FIG. Following step S2102, the mobile terminal 110A transmits a traffic start notification and speed information to the signal control device 130 (step S2103).

  Next, the signal control device 130 adds the mobile terminal 110A to the passing list (step S2104). Next, the signal control device 130 calculates the time required for the user 111A to pass the pedestrian crossing 101 based on the speed information transmitted in step S2103 (step S2105).

  Next, it is assumed that the mobile terminal 110B detects the start of passage of the pedestrian crossing 101 by the user of the mobile terminal 110B (step S2106). Next, the portable terminal 110B transmits a traffic start notification and speed information to the signal control device 130 (step S2107).

  Next, the signal control device 130 adds the portable terminal 110B to the passing list (step S2108). Next, the signal control device 130 calculates the time required for the user of the mobile terminal 110B to pass the pedestrian crossing 101 based on the speed information transmitted in step S2107 (step S2109).

  Steps S2110 to S2117 shown in FIG. 21 are the same as steps S514 to S521 shown in FIG. However, in step S2114, the extension time is calculated using the required time calculated in step S2109.

  As described above, according to the communication system 100 according to the fourth embodiment, the speed information is transmitted from the mobile terminal 110 to the signal control device 130, thereby determining the time required for the user 111 to pass the pedestrian crossing 101. It can be calculated at 130. Thereby, the effect similar to Embodiment 1 can be acquired.

(Configuration example of mobile terminal)
FIG. 22 is a block diagram illustrating a configuration example of a mobile terminal. For example, as illustrated in FIG. 22, the mobile terminal 110 according to each embodiment includes a processing unit 2210, a memory 2220, a wireless communication unit 2231, a wireless I / F 2232, a step count counter 2240, and an audio playback unit 2251. , A speaker 2252, an LCD display portion 2261, and an LCD 2262.

  The processing unit 2210 performs overall control and information processing of the mobile terminal 110. The processing unit 2210 can be realized by an arithmetic circuit such as a CPU (Central Processing Unit). For example, the calculation unit 213, the speed measurement unit 713, the stride measurement unit 911, and the step count calculation unit 1112 described above are realized by the processing unit 2210.

  The memory 2220 is used as a workspace for processing by the processing unit 2210 and information storage means. For example, the speed storage unit 211, the stride length storage unit 711, and the stride length storage unit 1111 described above are realized by the memory 2220.

  The wireless communication unit 2231 performs wireless communication with the signal control device 130 via the wireless I / F 2232 (wireless interface). For example, the wireless communication unit 2231 performs wireless communication using a method such as Bluetooth (registered trademark). For example, the reception unit 212 and the transmission unit 214 described above are realized by the wireless communication unit 2231 and the wireless I / F 2232. The step count counter 2240 has a configuration corresponding to the step count counter 712 described above.

  The audio reproduction unit 2251 reproduces audio via the speaker 2252. The LCD display unit 2261 displays images and messages on an LCD 2262 (Liquid Crystal Display). For example, the notification unit 1113 described above is realized by the audio reproduction unit 2251 and the speaker 2252, or the LCD display unit 2261 and the LCD 2262.

(Configuration example of signal control device)
The distance storage unit 221 of the signal control device 130 is realized by a memory of the signal control device 130, for example. The transmission unit 222 and the reception unit 223 of the signal control device 130 are realized by a wireless communication interface of the signal control device 130, for example. The wireless communication interface of the signal control device 130 is a method capable of communicating with the wireless communication interface (for example, the wireless I / F 2232) of the mobile terminal 110. The control unit 224 and the calculation unit 1811 of the signal control device 130 can be realized by an arithmetic circuit such as a CPU, for example.

(Detecting the start and end of pedestrian crossings)
FIG. 23 is a diagram illustrating an example of a detection method of the start and end of a pedestrian crossing. For example, transmitters 2311 to 2316 are provided on the pedestrian crossing 101 at a predetermined interval. Each of the transmitters 2311 to 2316 may be embedded in the pedestrian crossing 101 or may be exposed on the pedestrian crossing 101. Moreover, you may make it arrange | position the transmitters 2311 to 2316 along the braille block provided in the pedestrian crossing 101 so that even a visually impaired person etc. can detect reliably.

  The transmitters 2311 to 2316 transmit a radio signal by a wireless communication method such as Bluetooth. Bluetooth has a class as a concept that defines propagation intensity. For example, “Class 1” has a propagation intensity of 100 [mW] and an arrival distance of 100 [m]. “Class 2” has a propagation intensity of 2.5 [mW] and an arrival distance of 10 [m]. “Class 3” has a propagation intensity of 1 [mW] and a reach distance of 1 [m].

  For example, the transmitters 2311, 2312, 2315, and 2316 are transmitters that transmit a “Class 3” signal, and the transmitters 2313 and 2314 are transmitters that transmit a “Class 2” signal. Alternatively, all of the transmitters 2311 to 2316 may be transmitters that transmit a “Class 3” signal.

  The portable terminal 110 detects a radio signal transmitted from the transmitters 2311 to 2316. When the user 111 holding the mobile terminal 110 approaches the pedestrian crossing 101, first, the mobile terminal 110 detects a radio signal from the transmitter 2311. When the user 111 gets closer to the pedestrian crossing 101, radio signals from the transmitters 2311 and 2312 are detected.

  When the user 111 starts to cross the pedestrian crossing 101, the wireless signal from the transmitter 2311 is not detected, and the wireless signal from the transmitters 2312 and 2313 is detected by the portable terminal 110. When the wireless signal from the transmitter 2311 is not detected and the wireless signals from the transmitters 2312 and 2313 are detected, the mobile terminal 110 determines that the user 111 has started passing the pedestrian crossing 101. Thereby, the start of passage of the pedestrian crossing 101 by the user 111 can be detected.

  When the user 111 further proceeds, the wireless signal from the transmitter 2312 is not detected, and the wireless signal from the transmitters 2313 and 2314 is detected. When the user 111 reaches the right end of the pedestrian crossing 101, radio signals from the transmitters 2313 and 2314 are not received, and radio signals from the transmitters 2315 and 2316 are detected. When wireless signals from the transmitters 2313 and 2314 are not received and wireless signals from the transmitters 2315 and 2316 are detected, the mobile terminal 110 determines that the user 111 has finished passing the pedestrian crossing 101. Thereby, the end of the passage of the pedestrian crossing 101 by the user 111 can be detected.

  FIG. 24 is a block diagram illustrating a configuration example of a portable terminal that detects the start and end of a pedestrian crossing. In FIG. 24, the same components as those shown in FIG. As illustrated in FIG. 24, the mobile terminal 110 includes a signal receiving unit 2411 and a detection unit 2412 in addition to the configuration illustrated in FIG. 2.

  The signal receiving unit 2411 receives signals transmitted from the transmitters 2311 to 2316 of the pedestrian crossing 101. The signal reception unit 2411 outputs the received signal to the detection unit 2412. The detection unit 2412 detects the start and end of passage of the pedestrian crossing 101 by the user 111 based on the signal output from the signal receiving unit 2411. The detection unit 2412 outputs the detection result to the transmission unit 214.

  When the detection result indicating that the start of traffic is detected is output from the detection unit 2412, the transmission unit 214 transmits a traffic start notification to the signal control device 130. In addition, when the detection result indicating that the end of traffic is detected is output from the detection unit 2412, the transmission unit 214 transmits a traffic end notification to the signal control device 130. As a result, for example, as in the operation illustrated in FIG. 3, when it is detected that the user 111 has started to pass the pedestrian crossing 101, a traffic start notification can be transmitted and distance information can be received from the signal control device 130.

  In addition, when it is detected that the user 111 has completed the passage of the pedestrian crossing 101, a passage completion notification can be transmitted. Further, the detection result by the detection unit 2412 may be used, for example, as a trigger for counting the number of steps in the operation shown in FIG. Although the signal receiving unit 2411 is provided separately from the receiving unit 212 here, the receiving unit 212 and the signal receiving unit 2411 may be configured as a common receiving unit.

  As described above, according to the mobile terminal, the signal control device, the communication method, and the signal control method, the safety of the user who passes the pedestrian crossing can be ensured. The following additional notes are disclosed with respect to the embodiment described above.

(Appendix 1) A portable terminal that communicates with a signal control device that controls a traffic light at a pedestrian crossing,
A speed storage unit for storing speed information indicating a user's travel speed;
A receiving unit that receives distance information indicating the distance of the pedestrian crossing from the signal control device;
A calculation unit that calculates the time required for the user to pass the pedestrian crossing based on the speed information stored by the speed storage unit and the distance information received by the reception unit;
A transmission unit that transmits the required time information indicating the required time calculated by the calculation unit to the signal control device;
A portable terminal comprising:

(Supplementary Note 2) A stride storage unit that stores stride information indicating the stride of the user;
A step counter for counting the number of steps of the user;
A speed measurement unit that measures the travel speed based on the number of steps counted by the step counter within a predetermined time and the step information stored in the step storage unit;
The mobile terminal according to appendix 1, wherein the speed storage unit stores speed information indicating a travel speed measured by the speed measurement unit.

(Supplementary Note 3) A stride measuring unit that measures the stride based on the distance information received by the receiving unit and the steps counted by the step counter while the user is passing the pedestrian crossing,
The mobile terminal according to appendix 2, wherein the stride storage unit stores a stride measured by the stride measurement unit.

(Supplementary Note 4) A stride storage unit that stores stride information indicating the stride of the user;
A step number calculating unit that calculates a required number of steps of the pedestrian crossing by the user based on the step information stored by the step length storing unit and the distance information received by the receiving unit;
A notification unit for notifying the user of the required number of steps calculated by the step calculation unit;
The mobile terminal according to appendix 1, characterized by comprising:

(Supplementary note 5) The mobile terminal according to any one of supplementary notes 1 to 4, further comprising a notification unit that notifies the user of the required time calculated by the calculation unit.

(Additional remark 6) The said receiving part receives the remaining time information which shows the remaining time of the permission period when the said traffic signal notifies the said user of the passage permission of the said pedestrian crossing,
The mobile terminal according to any one of appendices 1 to 5, further comprising a notification unit that notifies the user of the remaining time indicated by the remaining time information received by the receiving unit.

(Appendix 7) A signal receiving unit that receives a signal transmitted from a transmitter provided in the pedestrian crossing;
A detection unit that detects the start of passage of the pedestrian crossing by the user based on the signal received by the signal reception unit;
The mobile terminal according to any one of appendices 1 to 6, wherein the reception unit receives the distance information when the detection unit detects the start of passage.

(Additional remark 8) In the signal control apparatus which controls the traffic signal of a pedestrian crossing,
A distance storage unit for storing distance information indicating the distance of the pedestrian crossing;
A transmission unit that transmits the distance information stored by the distance storage unit to a portable terminal possessed by a user who passes the pedestrian crossing;
A receiver that receives the required time information indicating the time required for the user to pass the pedestrian crossing, calculated by the mobile terminal based on the distance information transmitted by the transmitter;
Based on the required time information received by the receiving unit, the control unit for extending the permission period for the traffic signal to notify the user of the passage permission of the pedestrian crossing,
A signal control device comprising:

(Supplementary note 9) The permission period includes a warning period in which the traffic signal notifies the user that the remaining time of the permission period is less than a predetermined time,
The signal control apparatus according to appendix 8, wherein the control unit does not extend the permission period when a user of the mobile terminal starts to cross the pedestrian crossing during the warning period.

(Additional remark 10) In the signal control apparatus which controls the traffic signal of a pedestrian crossing,
A distance storage unit for storing distance information indicating the distance of the pedestrian crossing;
A receiving unit that receives speed information indicating a passing speed of a user who passes the pedestrian crossing from a portable terminal possessed by the user;
A calculation unit that calculates the time required for the user to pass the pedestrian crossing based on the distance information stored by the distance storage unit and the speed information received by the reception unit;
Based on the required time calculated by the calculation unit, the control unit for extending the permission period for the traffic signal to notify the user of the passage permission of the pedestrian crossing,
A signal control device comprising:

(Supplementary Note 11) A communication method for a portable terminal that communicates with a signal control device that controls a traffic light at a pedestrian crossing,
A speed storage step for storing speed information indicating a user's travel speed;
A receiving step of receiving distance information indicating the distance of the pedestrian crossing from the signal control device;
A calculation step of calculating a time required for the user to pass the pedestrian crossing based on the speed information stored by the speed storage step and the distance information received by the reception step;
A transmitting step of transmitting required time information indicating the required time calculated by the calculating step to the signal control device;
A communication method comprising:

(Additional remark 12) In the signal control method which controls the traffic signal of a pedestrian crossing,
A distance storing step of storing distance information indicating a distance of the pedestrian crossing;
A transmission step of transmitting the distance information stored by the distance storage step to a portable terminal possessed by a user who passes the pedestrian crossing;
A receiving step of receiving required time information indicating a required time of passage of the pedestrian crossing by the user calculated by the mobile terminal based on the distance information transmitted by the transmitting step;
A control step of extending a permission period in which the traffic signal notifies the user of the passage permission of the pedestrian crossing based on the required time information received by the reception step;
A signal control method comprising:

(Additional remark 13) In the signal control method which controls the traffic signal of a pedestrian crossing,
A distance storing step of storing distance information indicating a distance of the pedestrian crossing;
A receiving step of receiving speed information indicating a passing speed of a user passing through the pedestrian crossing from a mobile terminal possessed by the user;
A calculation step of calculating a time required for passing the pedestrian crossing by the user based on the distance information stored by the distance storage step and the speed information received by the reception step;
A control step of extending a period during which the traffic signal notifies the user of the passage permission of the pedestrian crossing based on the time required by the calculation step;
A signal control method comprising:

DESCRIPTION OF SYMBOLS 100 Communication system 101 Pedestrian crossing 110,110A-110C Portable terminal 111,111A, 111B User 120 Traffic light 121 Blue signal 122 Red signal 130 Signal control device 2311-2316 Transmitter T1 Blue signal lighting period T2, T3 Green signal blinking period

Claims (4)

A portable terminal that communicates with a signal control device that controls a traffic light at a pedestrian crossing,
A speed storage unit for storing speed information indicating a user's travel speed;
A receiving unit that receives distance information indicating the distance of the pedestrian crossing from the signal control device;
A calculation unit that calculates the time required for the user to pass the pedestrian crossing based on the speed information stored by the speed storage unit and the distance information received by the reception unit;
A transmission unit that transmits the required time information indicating the required time calculated by the calculation unit to the signal control device;
A portable terminal comprising: In the signal control device that controls the traffic lights at the pedestrian crossing,
A distance storage unit for storing distance information indicating the distance of the pedestrian crossing;
A transmission unit that transmits the distance information stored by the distance storage unit to a portable terminal possessed by a user who passes the pedestrian crossing;
A receiver that receives the required time information indicating the time required for the user to pass the pedestrian crossing, calculated by the mobile terminal based on the distance information transmitted by the transmitter;
Based on the required time information received by the receiving unit, the control unit for extending the permission period for the traffic signal to notify the user of the passage permission of the pedestrian crossing,
A signal control device comprising: A communication method of a portable terminal that communicates with a signal control device that controls a traffic light at a pedestrian crossing,
A speed storage step for storing speed information indicating a user's travel speed;
A receiving step of receiving distance information indicating the distance of the pedestrian crossing from the signal control device;
A calculation step of calculating a time required for the user to pass the pedestrian crossing based on the speed information stored by the speed storage step and the distance information received by the reception step;
A transmitting step of transmitting required time information indicating the required time calculated by the calculating step to the signal control device;
A communication method comprising: In a signal control method for controlling a traffic light at a pedestrian crossing,
A distance storing step of storing distance information indicating a distance of the pedestrian crossing;
A transmission step of transmitting the distance information stored by the distance storage step to a portable terminal possessed by a user who passes the pedestrian crossing;
A receiving step of receiving required time information indicating a required time of passage of the pedestrian crossing by the user calculated by the mobile terminal based on the distance information transmitted by the transmitting step;
A control step of extending a permission period in which the traffic signal notifies the user of the passage permission of the pedestrian crossing based on the required time information received by the reception step;
A signal control method comprising:

Images