JP5664179B2 - Traffic signal control apparatus and traffic signal control method - Google Patents

Description

  The present invention relates to a traffic signal control device and a traffic signal control method for performing traffic signal control for each outflow direction of an intersection.

  For the purpose of improving traffic jams at intersections, the traffic lights (arrows) assigned to each movement are used for the movement lines of vehicles and pedestrians that are classified according to direction, lanes used, traffic rights, etc. Therefore, movement control (also referred to as variable phase control or variable display control) for independently controlling the time for each lamp color of the signal lamps on the opposite roads (for example, the upward direction and the downward direction) has been studied. By performing movement control, for example, when there is a deviation in traffic demand in the vertical direction, the time difference is displayed in a direction where there is a lot of demand (also called a priority direction) By displaying the display of all the signal lights in the direction where demand is low, the traffic light can be expected to improve.

  As an example of a traffic signal controller for movement control, a dual ring equipped with a plurality of step counters and capable of independent upstream / downstream signal control and real-time signal control according to the traffic situation of each inflow path at the intersection A traffic signal controller of the type is disclosed (see Patent Document 1).

  On the other hand, a system that supports a driver's safe driving in cooperation with a road device and an in-vehicle device has been proposed. For example, an apparatus that provides a vehicle with signal information such as the signal lamp color and display time of a traffic signal controller provided at an intersection is disclosed (see Patent Document 2).

  In addition, in order to realize movement control, aside from the dual ring method, a plurality of floor patterns (pages) in which a plurality of lamp colors are turned on or off for each floor are prepared in advance, and a predetermined timing during the signal cycle is prepared. In addition, movement control by the current page selection method for designating a floor pattern to be executed next is also being studied.

JP 2006-268547 A Japanese Patent No. 2806801

  However, conventionally, it has not been studied how to provide signal information of a traffic signal controller that implements a signal control method for switching a plurality of pages in the middle of a signal cycle to a vehicle (on-vehicle device).

  The present invention has been made in view of such circumstances, and a traffic signal control apparatus and a traffic signal control capable of providing signal information even when a signal control method for switching a plurality of pages in the middle of a signal cycle is performed. It aims to provide a method.

The traffic signal control device according to the first aspect of the present invention is a storage means for storing a plurality of floor patterns in which a plurality of lamp colors are turned on or off for each floor, and a plurality of floor patterns stored according to traffic demand. A traffic signal control device for performing traffic signal control for each outflow direction of an intersection , wherein the designating means selects one floor pattern from the plurality of floor patterns when the floor is switched. In the case of designating, the determining means for determining whether or not the lighting order of the lamp color with respect to an arbitrary outflow direction of the intersection of each of the plurality of floor patterns is equal, and the lighting order of the lamp color with respect to the outflow direction by the determining means If it is determined to be equal, characterized in that it comprises generating means for generating a light color information including the lighting order of the light color with respect to the outflow direction at the time when the revised switches To.

  In the traffic signal control device according to a second aspect of the present invention, in the first aspect, the plurality of floor patterns include display seconds of each lamp color on each floor, and the same lamp with respect to the outflow direction in a plurality of consecutive floors. When the color is in a lighting state, the display device includes a total display seconds calculation unit that calculates a total display seconds by adding up the display seconds of each of the plurality of floors, and the generation unit calculates the total display seconds calculation unit. The total number of seconds displayed is included in the lamp color information as the same lamp color display seconds for the outflow direction.

A traffic signal control device according to a third aspect of the present invention is a storage means for storing a plurality of floor patterns in which a plurality of lamp colors are turned on or off for each floor, and a plurality of floor patterns stored according to traffic demand. A traffic signal control apparatus that performs traffic signal control for each outflow direction at the intersection, and any of the plurality of floor patterns is specified for any outflow direction at the intersection. When determining that the lighting order of the lamp colors is the same, and when the determining means determines that the lighting order of the lamp colors is equal, the lamp color information including the lighting order of the lamp colors with respect to the outflow direction is generated. and a generation means, said plurality of revised pattern includes the maximum display number of seconds each light color at each revised, for the outflow direction at a plurality of revised successive of each of the plurality of revised pattern If one lamp color is lit, further comprising a maximum display number of seconds calculating means for calculating the maximum display number of seconds which is the sum of the longest display seconds of each of the plurality of revised, said generating means, said maximum display Seconds The longest display seconds among the longest display seconds for each of the plurality of floor patterns calculated by the number calculation means are configured to be included in the lamp color information as the longest display seconds of the same lamp color with respect to the outflow direction. It is characterized by being.

A traffic signal control device according to a fourth aspect of the present invention is a storage means for storing a plurality of floor patterns in which a plurality of lamp colors are turned on or off for each floor, and a plurality of floor patterns stored according to traffic demand. A traffic signal control apparatus that performs traffic signal control for each outflow direction at the intersection, and any of the plurality of floor patterns is specified for any outflow direction at the intersection. When determining that the lighting order of the lamp colors is the same, and when the determining means determines that the lighting order of the lamp colors is equal, the lamp color information including the lighting order of the lamp colors with respect to the outflow direction is generated. and a generation means, said plurality of revised pattern includes shortest display the number of seconds each light color at each revised, for the outflow direction at a plurality of revised successive of each of the plurality of revised pattern If one lamp color is lit, further comprising a shortest display seconds calculating means for calculating the shortest display seconds which is the sum of the shortest display seconds of each of the plurality of revised, said generating means, said shortest display Seconds The shortest display seconds among the shortest display seconds for each of the plurality of floor patterns calculated by the number calculation means are configured to be included in the lamp color information as the shortest display seconds of the same lamp color with respect to the outflow direction. It is characterized by being.

  A traffic signal control device according to a fifth aspect of the present invention is the traffic signal control device according to any one of the first to fourth aspects of the present invention, wherein the storage means is a first step pattern for not performing the time difference indication, an inflow path facing at the intersection. Of the second step pattern for performing the time difference display for one inflow channel, and the third step pattern for performing the time difference display for the inflow channel opposite to the one inflow channel It is characterized in that at least two floor patterns are stored.

  In the traffic signal control device according to a sixth aspect of the present invention, in any one of the first to fifth aspects, the plurality of floor patterns have the same number of floors.

According to a seventh aspect of the present invention, there is provided a traffic signal control method comprising: storage means for storing a plurality of floor patterns in which a plurality of lamp colors are turned on or off for each floor; a plurality of floor patterns stored in accordance with traffic demand; A traffic signal control method by a traffic signal control device that performs traffic signal control for each outflow direction of an intersection , wherein the designating means is selected from the plurality of floor patterns at the time when the floor is switched. In the case of designating one floor pattern, the step of determining whether or not the lighting order of the lamp color with respect to any outflow direction of the intersection of each of the plurality of floor patterns is equal; and the lamp color of the lamp color with respect to the outflow direction If the turn-on order is determined to be equal, generating the generation means light color information including the lighting order of the light color with respect to the outflow direction at the time when the revised switches Characterized in that it comprises the steps that.

  In the first invention and the seventh invention, a storage means for storing a plurality of floor patterns (for example, pages) in which a plurality of lamp colors are turned on or off for each floor, and a plurality of storage means stored according to traffic demand Designating means for designating one floor pattern from the floor patterns. The plurality of floor patterns include, for example, a page when the time difference display is not performed, a page when the time difference display is performed for the inflow path facing at the intersection. The determination means determines whether or not the lighting order of the lamp colors with respect to any outflow direction at the intersection is the same regardless of which of the plurality of floor patterns is specified by the specifying means. The outflow direction of the intersection is, for example, straight turn left or right turn. That is, the determination means determines whether or not the lighting order of the lamp colors (for example, blue, yellow, red, etc.) for each of the plurality of floor patterns is the same for the straight turn direction, for example.

  When it is determined that the lighting order of the lamp colors is equal, the generation unit generates lamp color information including the lighting order of the lamp colors with respect to the outflow direction. For example, when the lighting order of the light colors for the straight left turn direction of each of the plurality of floor patterns is blue, yellow, red, blue, yellow, red, etc., the generation means generates the lighting order of the light colors in the straight left turn direction (blue , Yellow, red, blue, yellow, red, etc.). Note that the display time of each lamp color can be included in the lamp lighting sequence. As a result, the lighting order of the lamp colors does not change regardless of which floor pattern is designated (selected) from among a plurality of floor patterns, so the lighting order of the lamp colors should be provided as lamp color information (signal information). Signal information can be provided even when a signal control method for switching a plurality of pages in the middle of a signal cycle is performed.

  In the second invention, the plurality of floor patterns include the display seconds of each lamp color on each floor. Then, when the same lamp color for the outflow direction is in a lighting state on a plurality of successive stairs, the total display seconds calculation means calculates a total display seconds by adding the display seconds of each of the plurality of stairs. For example, in steps (steps) 1, 2, 3, and 4 of the floor pattern, when the straight turn is continuously lit (blue), the display seconds of steps 1, 2, 3, and 4 are set to T1, When T2, T3, and T4 are set, the total number of seconds displayed for the straight turn blue is calculated by T1 + T2 + T3 + T4. The generation means includes the calculated total display seconds in the lamp color information as the display seconds of the same lamp color (for example, blue) for the outflow direction (for example, straight turn left). The same applies to other lamp colors after step 5. The same applies to the other floor patterns and the outflow direction (for example, right turn). Thus, regardless of which floor pattern is designated (selected) from among the plurality of floor patterns, the lighting order of the lamp colors and the display seconds can be provided as lamp color information (signal information). The signal information can be provided even when the signal control method for switching the signal in the middle of the signal cycle is performed.

  In the third invention, the plurality of floor patterns include the longest display seconds of each lamp color on each floor. The longest display seconds calculating means calculates the longest display seconds obtained by adding up the longest display seconds of each of the plurality of floors when the same lamp color in the outflow direction is lit in a plurality of successive floors. For example, in steps (floors) 1, 2, 3, and 4 of the floor pattern P1, when the straight left turn is continuously lit (blue), the longest display seconds of steps 1, 2, 3, and 4 are set. When Tm1, Tm2, Tm3, and Tm4 are set, the longest blue display time TP1 of straight turn left of the floor pattern P1 is calculated by TP1 = Tm1 + Tm2 + Tm3 + Tm4. Similarly, the blue longest display seconds TP2 and TP3 of the straight turn left of the floor patterns P2 and P3 are set.

  The generation means uses the longest display seconds (for example, TP1, TP2, and TP3) for each of the calculated plurality of floor patterns (for example, P1, P2, and P3) for the same lamp color in the outflow direction. Included in lamp color information as the longest display time. For example, in the case of TP1> TP2> TP3, the longest display time of blue that goes straight left is included in the lamp color information as TP1. Since the longest display time (longest display time of lamp color) of each of the multiple floor patterns is provided as lamp color information (signal information), which one of the multiple floor patterns is specified Even when (selected), traffic signal control that does not exceed the provided display seconds is not performed, and signal information is provided even when a signal control method for switching multiple pages in the middle of a signal cycle is implemented. can do.

  In the fourth invention, the plurality of floor patterns include the shortest display seconds of each lamp color on each floor. Then, the shortest display seconds calculating means calculates the shortest display seconds in which the shortest display seconds of each of the plurality of floors are totaled when the same lamp color in the outflow direction is in a lighting state on the plurality of continuous floors. For example, in steps (floors) 1, 2, 3, and 4 of the floor pattern P1, when the straight left turn is continuously lit (blue), the longest display seconds of steps 1, 2, 3, and 4 are set. When Ts1, Ts2, Ts3, and Ts4 are set, the shortest blue display time TS1 for straight turn left of the floor pattern P1 is calculated by TS1 = Ts1 + Ts2 + Ts3 + Ts4. Similarly, it is assumed that the blue shortest display seconds TS2 and TS3 of the left turn of the floor patterns P2 and P3 are straight.

  The generation means uses the shortest display seconds (for example, TS1, TS2, TS3) for the plurality of calculated floor patterns (for example, P1, P2, and P3) for the same lamp color with respect to the outflow direction. Included in lamp color information as the shortest display time. For example, in the case of TS1 <TS2 <TS3, the shortest display seconds of blue that goes straight left are included in the lamp color information as TS1. Since the shortest display time (minimum display time of light color) of each of the multiple floor patterns is provided as light color information (signal information), which floor pattern is specified from the multiple floor patterns Even if (selected), traffic signal control is not performed below the provided display seconds, and signal information is provided even when implementing a signal control method that switches multiple pages in the middle of a signal cycle. can do.

  In the fifth aspect of the invention, the plurality of floor patterns are used to perform the time difference display on the first floor pattern P1 for not performing the time difference display, and one inflow path facing at the intersection. The second floor pattern P2 is at least two floor patterns of the third floor pattern P3 for performing the time difference display on the inflow path opposite to the one inflow path. Thereby, even when a signal control method (for example, movement control by the current page selection method) for switching a plurality of pages in the middle of a signal cycle is performed, signal information can be provided.

  In the sixth invention, the plurality of floor patterns have the same number of floors. Thereby, the lighting state of the lamp color and the display seconds (including the longest display seconds and the shortest display seconds) can be easily associated with each of the plurality of floor patterns.

  According to the present invention, the lighting order of the light colors does not change regardless of which floor pattern is designated from among the plurality of floor patterns. Therefore, the lighting order of the light colors can be provided, and a plurality of pages can be signaled. Signal information can be provided even when a signal control method for switching in the middle of a cycle is implemented.

It is a block diagram which shows an example of a structure of the traffic signal control apparatus which concerns on this Embodiment. It is a schematic diagram which shows an example of the intersection where the signal control by the traffic signal control apparatus of this Embodiment is performed. It is explanatory drawing which shows an example of the designation | designated method of the floor pattern by the traffic signal control apparatus of this Embodiment. It is explanatory drawing which shows an example of a 1st floor pattern. It is explanatory drawing which shows an example of a 1st floor pattern. It is explanatory drawing which shows an example of the lighting order of the lamp color with respect to the outflow direction based on a 1st floor pattern. It is explanatory drawing which shows an example of a 2nd floor pattern. It is explanatory drawing which shows an example of a 2nd floor pattern. It is explanatory drawing which shows an example of the lighting order of the lamp color with respect to the outflow direction based on a 2nd floor pattern. It is explanatory drawing which shows an example of a 3rd floor pattern. It is explanatory drawing which shows an example of a 3rd floor pattern. It is explanatory drawing which shows an example of the lighting order of the lamp color with respect to the outflow direction based on a 3rd floor pattern. It is explanatory drawing which shows an example of the lamp color information produced | generated with respect to the left direction. It is explanatory drawing which shows an example of the lamp color information produced | generated with respect to a right turn in the outflow direction. It is explanatory drawing which shows the other example of a 1st floor pattern. It is explanatory drawing which shows the other example of a 1st floor pattern. It is explanatory drawing which shows the other example of the lighting order of the lamp color with respect to the outflow direction based on a 1st floor pattern. It is explanatory drawing which shows the other example of the 2nd floor pattern. It is explanatory drawing which shows the other example of the 2nd floor pattern. It is explanatory drawing which shows the other example of the lighting order of the lamp color with respect to the outflow direction based on a 2nd floor pattern. It is explanatory drawing which shows the other example of the 3rd floor pattern. It is explanatory drawing which shows the other example of the 3rd floor pattern. It is explanatory drawing which shows the other example of the lighting sequence of the lamp color with respect to the outflow direction based on a 3rd floor pattern. It is explanatory drawing which shows an example of the lamp color information produced | generated by the outflow direction with respect to the left when it changes to a 1st floor pattern. It is explanatory drawing which shows an example of the lamp color information produced | generated with respect to a right turn in the outflow direction when it changes to a 1st floor pattern. It is explanatory drawing which shows an example of the lamp color information produced | generated by the outflow direction with respect to the left when it changes to a 2nd floor pattern. It is explanatory drawing which shows an example of the lamp color information produced | generated with respect to a right turn in the outflow direction when it changes to a 2nd floor pattern. It is explanatory drawing which shows an example of the lamp color information produced | generated by the outflow direction with respect to the left when it changes to a 3rd floor pattern. It is explanatory drawing which shows an example of the light color information produced | generated with respect to a right turn in the outflow direction when it changes to a 3rd floor pattern.

  Hereinafter, a traffic signal control device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an example of the configuration of a traffic signal control device 10 according to the present embodiment. The traffic signal control device 10 is a control unit 11 that controls the entire traffic signal control device 10, a traffic information acquisition unit 12, a time difference display determination unit 13, and a determination unit that determines whether or not the lighting order of lamp colors is equal. Lamp color determination unit 14, total display seconds calculation means, longest display seconds calculation means and display seconds calculation section 15 as shortest display seconds calculation means, storage as storage means for storing a plurality of floor patterns (pages) Unit 16, provision information generation unit 17 as a generation means for generating lamp color information (signal information), output unit for outputting lamp color information (signal information) to an external device (for example, an information relay device, a road device, etc.) 18 and a lamp color control unit 19.

  The traffic information acquisition unit 12 acquires traffic information for determining whether or not to perform a time difference display on the inflow path facing at the intersection. The traffic information is, for example, traffic demand such as traffic volume, traffic jam length, travel time, number of waiting for traffic lights, etc., for example, road beacons installed at appropriate locations on the road, roadside devices such as image-type vehicle detectors, etc. Traffic information can be obtained from The travel time between the optical beacons can be calculated based on the vehicle uplink information collected by the optical beacon or the like, and the congestion of the road (inflow path) can be determined based on the calculated travel time. In addition, the length of traffic jam can be estimated based on the traffic volume per unit time or occupation rate measured by an ultrasonic vehicle detector or the like.

  Based on the traffic information acquired by the traffic information acquisition unit 12 (for example, traffic demand such as traffic volume, traffic jam length, travel time, number of waiting for signals, etc.), the time difference indication determination unit 13 Whether or not to perform time difference display is determined, and when it is determined that time difference display is to be performed, it is determined to which inflow path of the opposite inflow paths the time difference display is performed.

  For example, it can be determined that the time difference display is performed for the inflow route with the higher traffic demand, and when the time difference display is performed for the main line ascending with the traffic demand, in the opposite direction of the main line ascending. Vehicles going to each outflow path (straight turn left turn, right turn, etc.) up the main line after stopping the progress of the vehicles going down the main line with the red color of the signal lights on one main line (one with less traffic demand) red To proceed with a green light. In addition, trunk line going up and down is an example for convenience, and is not limited to this.

  In addition, the time difference display determination unit 13 has a function as a specification unit that specifies (selects) one floor pattern from a plurality of floor patterns stored in the storage unit 16 according to the determination result.

  The storage unit 16 has a plurality of floor patterns (also referred to as pages) in which a plurality of lamp colors (for example, red, yellow, right-left blue arrow, right-turn blue arrow, etc.) are turned on or off for each floor (also referred to as a step). Remember. For example, the storage unit 16 includes a first step pattern P1 for not performing the time difference display, and a second step pattern P2 for performing the time difference display for one inflow path facing at the intersection. In addition, at least two step patterns are stored among the third step patterns P3 for performing the time difference display for the inflow channel facing the one inflow channel. The plurality of floor patterns P1 to P3 include display seconds (for example, the longest display seconds, the shortest display seconds, etc.) of each lamp color on each floor. Details of the floor pattern will be described later.

  The lamp color determination unit 14 includes a plurality of floor patterns (for example, a first floor pattern P1, a second floor pattern P2, a third floor) stored in the storage unit 16 according to the determination result by the time difference display determination unit 13. Whether or not any of the floor patterns is designated (selected) from among the patterns P3), it is determined whether or not the lighting order of the lamp colors with respect to an arbitrary outflow direction at the intersection is equal. The outflow direction of the intersection is, for example, straight turn left or right turn. That is, the lamp color determination unit 14 determines whether or not the lighting order (for example, blue, yellow, red, etc.) of the lamp colors with respect to each of the plurality of floor patterns P1 to P3, for example, with respect to the straight left turn direction is equal.

  When the lamp color determination unit 14 determines that the lighting order of the lamp colors is equal, the provision information generation unit 17 generates lamp color information (signal information) including the lighting order of the lamp colors with respect to the outflow direction. For example, when the lighting order of the light colors for the straight turn directions of each of the plurality of floor patterns P1 to P3 is blue, yellow, red, blue, yellow, red, etc., the provided information generation unit 17 sets the light in the straight turn direction Lamp color information including the lighting order of colors (blue, yellow, red, blue, yellow, red, etc.) is generated. Note that the display time of each lamp color can be included in the lamp lighting sequence. As a result, the lighting order of the lamp colors does not change regardless of which floor pattern is designated (selected) from among a plurality of floor patterns, so the lighting order of the lamp colors should be provided as lamp color information (signal information). Signal information can be provided even when a signal control method (for example, movement control by the current page selection method) for switching a plurality of pages in the middle of a signal cycle is performed.

  For each of the floor patterns P1 to P3, the display seconds calculation unit 15 has the same lamp color when the same lamp color is lit in a plurality of consecutive decks for each outflow direction (straight turn, right turn, etc.). The total number of display seconds is calculated by adding the display times of each of a plurality of floors. For example, in steps (steps) 1, 2, 3, and 4 of the floor pattern, when the straight turn is continuously lit (blue), the display seconds of steps 1, 2, 3, and 4 are set to T1, When T2, T3, and T4 are set, the total number of seconds displayed for the straight turn blue is calculated by T1 + T2 + T3 + T4. The same applies to other lamp colors after step 5. The same applies to the other floor patterns and the outflow direction (for example, right turn).

  When the total number of display seconds is calculated by the display number calculation unit 15, the provision information generation unit 17 uses the calculated total display number for the same lamp color (for example, blue) for the outflow direction (for example, straight turn left). Included in the lamp color information as the number of seconds displayed. The same applies to other lamp colors after step 5. The same applies to the other floor patterns and the outflow direction (for example, right turn). Thus, regardless of which floor pattern is designated (selected) from among the plurality of floor patterns, the lighting order of the lamp colors and the display seconds can be provided as lamp color information (signal information). The signal information can be provided even when a signal control method (for example, movement control by the current page selection method) for switching between and during the signal cycle is performed.

  In addition, for each of the floor patterns P <b> 1 to P <b> 3, the display seconds calculation unit 15 displays the light color when the same light color is lit on a plurality of continuous floors for each outflow direction (straight forward left turn, right turn, etc.). The longest display seconds are calculated by summing up the longest display seconds of each of the same plurality of floors. For example, in steps (floors) 1, 2, 3, and 4 of the floor pattern P1, when the straight left turn is continuously lit (blue), the longest display seconds of steps 1, 2, 3, and 4 are set. When Tm1, Tm2, Tm3, and Tm4 are set, the longest blue display time TP1 of straight turn left of the floor pattern P1 is calculated by TP1 = Tm1 + Tm2 + Tm3 + Tm4. Similarly, the blue longest display seconds TP2 and TP3 of the straight turn left of the floor patterns P2 and P3 are set.

  Then, the display seconds calculation unit 15 outputs the longest display seconds among the longest display seconds (for example, TP1, TP2, TP3) for each of the plurality of calculated floor patterns (for example, P1, P2, P3) in the outflow direction. It is included in the lamp color information as the longest display seconds of the same lamp color for (for example, straight turn left). For example, in the case of TP1> TP2> TP3, the longest display time of blue that goes straight left is included in the lamp color information as TP1. Since the longest display time (longest display time of lamp color) of each of the multiple floor patterns is provided as lamp color information (signal information), which one of the multiple floor patterns is specified Even if (selected), traffic signal control that does not exceed the provided display seconds is not performed, and a signal control method (for example, according to the current page selection method) that switches a plurality of pages in the middle of a signal cycle Signal information can be provided even when the movement control is performed.

  In addition, for each of the floor patterns P <b> 1 to P <b> 3, the display seconds calculation unit 15 displays the light color when the same light color is lit on a plurality of continuous floors for each outflow direction (straight forward left turn, right turn, etc.). The shortest display seconds are calculated by summing up the shortest display seconds of the same plurality of floors. For example, in steps (floors) 1, 2, 3, and 4 of the floor pattern P1, when the straight left turn is continuously lit (blue), the longest display seconds of steps 1, 2, 3, and 4 are set. When Ts1, Ts2, Ts3, and Ts4 are set, the shortest blue display time TS1 for straight turn left of the floor pattern P1 is calculated by TS1 = Ts1 + Ts2 + Ts3 + Ts4. Similarly, it is assumed that the blue shortest display seconds TS2 and TS3 of the left turn of the floor patterns P2 and P3 are straight.

  Then, the display seconds calculation unit 15 outputs the shortest display seconds among the shortest display seconds (for example, TS1, TS2, TS3) for each of the calculated plurality of floor patterns (for example, P1, P2, P3) in the outflow direction. Is included in the lamp color information as the shortest display seconds of the same lamp color. For example, in the case of TS1 <TS2 <TS3, the shortest display seconds of blue that goes straight left are included in the lamp color information as TS1. Since the shortest display time (minimum display time of light color) of each of the multiple floor patterns is provided as light color information (signal information), which floor pattern is specified from the multiple floor patterns Even if (selected), traffic signal control that does not fall below the provided display seconds is not performed, and a signal control method (for example, based on the current page selection method) that switches a plurality of pages in the middle of a signal cycle Signal information can be provided even when the movement control is performed.

  The output unit 18 outputs the lamp color information (signal information) generated by the provision information generation unit 17 to an external information provision device or a road device.

  The lamp color control unit 19 sends a lamp color signal to the signal lamp installed at the intersection according to a command from the control unit 11 based on the floor pattern specified (selected) according to the determination result of the time difference display determination unit 13. Is output. Thereby, the lamp color of the signal lamp is switched in a predetermined order and display time.

  FIG. 2 is a schematic diagram illustrating an example of an intersection where signal control is performed by the traffic signal control device 10 according to the present embodiment. As shown in FIG. 2, for the intersection, a main road and an intersection road intersect each other, and for convenience, one direction of the main road facing at the intersection is a main line going up, and a direction facing the main line going up is a main road going down. Further, one direction of the crossing road facing at the intersection is defined as crossing up, and the direction facing the crossing up is defined as crossing down. At the intersection, there is a structure in which four inflow paths of the main line up, the main line down, the cross up and the cross down flow.

  For the main line up, main line down, cross up and cross down, the main line up lamp, the main line down lamp, the cross up lamp and the cross down lamp are respectively installed. Each signal lamp has G (blue for round lamp), Y (yellow for round lamp), R (red for round lamp), left arrow (left turn blue arrow), upward arrow (straight blue arrow), Each lamp color has a right-pointing arrow (right turn blue arrow). There is no left turn blue arrow light at intersections where left turn is always permitted.

  FIG. 3 is an explanatory diagram showing an example of a method for specifying a floor pattern by the traffic signal control device 10 of the present embodiment. The specification of the floor pattern means selection (designation) of the current page. FIG. 3 shows a flowchart in one cycle of the signal cycle consisting of steps (levels) 1-18. Steps 1 to 9 show a flow chart in the main line direction, and steps 10 to 18 show a flow chart in the cross direction. Further, any one of the plurality of floor patterns P1 to P3 is designated (selected) between Steps 1 and 2, and any one of the plurality of floor patterns P1 to P3 is selected between Steps 10 and 11. One floor pattern is specified (selected).

  The floor pattern P1 shown in the upper part of FIG. 3 is selected (designated) when the time difference display is not performed in the main line direction and the crossing direction. That is, a straight left turn and a subsequent right turn are permitted at the same timing for the main line up and down. For crossing up and down, a straight left turn and a subsequent right turn are permitted at the same timing.

  Further, the floor pattern P2 shown in the middle stage of FIG. 3 is selected (designated) when the time difference display is performed for the main line down and the cross down. That is, a straight left turn and a right turn are permitted at the same timing for the main line down (leftward in the flowchart), and a straight left turn and right turn are not permitted for the main line up (rightward in the flowchart). In addition, a straight left turn and a right turn are permitted at the same timing for crossing down (downward in the flow chart), and a straight left turn and right turn are not permitted in crossing up (upward in the flow chart).

  Further, the floor pattern P3 shown in the lower part of FIG. 3 is selected (designated) when the time difference display is performed on the main line up and the cross up. That is, a straight left turn and a right turn are permitted at the same timing for the main line going up (to the right in the flowchart), and a straight left turn and a right turn are not permitted for the main line going down (to the left in the flow chart). In addition, a straight left turn and a right turn are permitted at the same timing for crossing up (upward in the flowchart), and a straight left turn and right turn are not permitted for crossing down (downward in the flowchart).

  In FIG. 3, in step 1, the floor patterns P1, P2, and P3 are the same. In step 10, the floor patterns P1, P2, and P3 are the same. The upper steps 2 to 9 and the upper steps 11 to 18 are included in the floor pattern P1, the middle steps 2 to 9 and the middle steps 11 to 18 are included in the floor pattern P2, and the lower steps 2 to 9 are included. The steps 11 to 18 in the lower stage are not limited to the configuration included in the floor pattern P3, and any one of steps 2 to 9 in the upper, middle, and lower stages and any one of steps 11 to 18 in the upper, middle, and lower stages are included in the floor pattern P1. Are included in the floor pattern P2, and the other steps 2 to 9 in the upper, middle, and lower stages are included. Any configuration may be used as long as the remaining steps 11 to 18 in the upper, middle and lower stages are included in the floor pattern P3.

  Next, the floor patterns P1 to P3 will be described. The floor pattern P1 is a floor pattern that is specified when time difference display is not performed, and the floor pattern P2 is a floor pattern that is specified when time difference display is performed for main road descending and crossing descending. P3 is a staircase pattern specified when time difference display is performed for main line up and cross up. The floor pattern is not limited to these.

  4 and 5 are explanatory diagrams showing an example of the first floor pattern P1. FIG. 4 shows the first cycle of the signal cycle, and FIG. 5 shows the second cycle of the signal cycle. One cycle is composed of 18 steps (steps) 1-18. In steps 1 to 9, the crossing direction is stopped in all red, and in steps 10 to 18, the main line direction is stopped in all red.

  The floor pattern defines lighting or extinction of a plurality of lamp colors (round lamp, straight left arrow, right turn arrow) for each step (floor). Further, the display seconds (the longest display seconds and the shortest display seconds) of each lamp color are determined for each step. In the first cycle (FIG. 4), the longest display seconds and the shortest display seconds are the same number of seconds. This indicates that there is no fluctuation range of the display seconds. However, in the second cycle, the longest display seconds and the shortest display seconds are different from each other. This indicates that in the second cycle, there is a possibility that the lamp color may be extended or shortened depending on the traffic situation, so that there is a fluctuation range of the display seconds. When the floor pattern P1 is designated, traffic control is performed according to the flowchart in the upper part of FIG.

  FIG. 6 is an explanatory diagram showing an example of the lighting order of the lamp colors with respect to the outflow direction based on the first floor pattern. In FIG. 6, the lighting order of the lamp color of each outflow direction (right left, right turn) is shown about the main line going up. The same applies to the main line down, crossing up and down, and the description is omitted.

  First, the case where the outflow direction is immediately to the left will be described. It is the signal of the round lamp shown in FIG. 4 and FIG. As shown in FIG. 4 (first cycle), in steps 1 to 4, the left arrow is turned on, in step 5, Y (yellow) is turned on, and the left arrow is turned off. In steps 6 to 18, R is turned on. (Red) lights up and the left arrow goes off. In step 8, Y (yellow) is lit, but in step 7 immediately before, blue is not lit and R (red) is lit, so in step 8, R (red) is set for convenience. It can be said that it is lit. Further, as shown in FIG. 5 (second cycle), in steps 1 to 4, the left arrow is turned on, in step 5, Y (yellow) is turned on, and the left arrow is turned off, and in steps 6 to 18 , R (red) lights up and the left arrow goes off.

  In the first cycle, the total display seconds (the shortest display seconds and the longest display seconds are equal) of steps 1 to 4 in which the right arrow (blue) is lit is 60 seconds (15 + 15 + 15 + 15), and Y (yellow ) Is displayed for 3 seconds in Step 5, and R (red) is displayed in Steps 6 to 18 for 77 seconds. In the second cycle, the shortest display seconds in steps 1 to 4 in which the right arrow (blue) is lit are 9 seconds, and the longest display seconds are 440 seconds. Further, the shortest display seconds in step 5 where Y (yellow) is lit is 1 second, and the longest display seconds are 10 seconds. Further, the shortest display seconds in steps 6 to 18 in which R (red) is lit are 18 seconds, and the longest display seconds are 730 seconds. As described above, the lighting order of the lamp colors and the display seconds of each lamp color (the shortest display seconds and the longest display seconds) with respect to the left side of FIG. 6 can be obtained.

  Next, the case where the outflow direction is a right turn will be described. It is the signals of the round lamp and the right turn arrow shown in FIGS. As shown in FIG. 4 (first cycle), in steps 1 to 6, R (red) is turned on and the right turn arrow is turned off, in step 7, the right turn arrow (blue) is turned on, and in step 8, Y ( Yellow) is turned on and the right turn arrow is turned off. In Steps 9 to 18, R (red) is turned on and the right turn arrow is turned off. In step 5, Y (yellow) is lit, but in step 4 immediately before, blue is not lit and R (red) is lit. Therefore, in step 5, R (red) is set for convenience. It can be said that it is lit. Further, as shown in FIG. 5 (second cycle), in steps 1 to 6 of the second cycle following step 18 of the first cycle, R (red) is lit as in steps 9 to 18 of the first cycle. The right turn arrow goes off. That is, from step 9 in the first cycle to step 6 in the second cycle, R (red) is turned on and the right turn arrow is turned off. In step 7 of the second cycle, the right turn arrow (blue) lights up, in step 8, Y (yellow) lights up and the right turn arrow (blue) turns off, and in steps 9-18, R (red) lights up. The right turn arrow goes off.

  Then, the total display seconds (the shortest display seconds and the longest display seconds are equal) in steps 1 to 6 in which R (red) is lit is 65 seconds, and the display seconds in step 7 in which the right turn arrow (blue) is lit. The number is 10 seconds, the display time in step 8 when Y (yellow) is lit is 3 seconds, and the shortest display time of step 9 in the first cycle to step 6 in the second cycle when R (red) is lit The number is 73 seconds, and the longest display time is 522 seconds. In addition, the shortest display time in Step 7 of the second cycle in which the right turn arrow (blue) is lit is 1 second, and the longest display time is 110 seconds. Further, the shortest display seconds in Step 8 of the second cycle in which Y (yellow) is lit is 1 second, and the longest display seconds are 110 seconds. Further, the display seconds of R (red) after step 9 in the second cycle are unknown because the step pattern in the third cycle is not known. As described above, the lighting order of the lamp colors and the display seconds of each lamp color (the shortest display seconds and the longest display seconds) for the right turn in FIG. 6 can be obtained.

  The floor patterns P1 to P3 have the same number of floors. Thereby, the lighting state of the lamp color and the display seconds (including the longest display seconds and the shortest display seconds) can be easily associated with each of the plurality of floor patterns.

  It is sufficient that the display time of the light color provided as signal information can be provided as much as possible, and the fixed display seconds (for example, when the shortest seconds and the longest seconds are equal) provide the fixed display seconds. If it is not confirmed, the shortest number of seconds and the longest number of seconds may be provided.

  Next, the second floor pattern P2 will be described. 7 and 8 are explanatory views showing an example of the second floor pattern P2. FIG. 7 shows the first cycle of the signal cycle, and FIG. 8 shows the second cycle of the signal cycle. One cycle is composed of 18 steps (steps) 1-18. In steps 1 to 9, the crossing direction is stopped in all red, and in steps 10 to 18, the main line direction is stopped in all red. When the floor pattern P2 is designated, traffic control is performed according to the middle flowchart of FIG.

  FIG. 9 is an explanatory diagram showing an example of the lighting order of the lamp colors with respect to the outflow direction based on the second floor pattern. In FIG. 9, the lighting order of the light color of each outflow direction (right left, right turn) is shown about the trunk line going up. The same applies to the main line down, crossing up and down, and the description is omitted.

  First, the case where the outflow direction is immediately to the left will be described. As shown in FIG. 7, in the first cycle, the display seconds in Step 1 in which the right arrow (blue) is lit (the shortest display seconds and the longest display seconds are equal) are 15 seconds, and Y (yellow) The number of seconds displayed in step 2 when lit up is 3 seconds, and the number of seconds displayed in steps 3 to 18 in which R (red) is lit is 82 seconds. Further, as shown in FIG. 8, in the second cycle, the shortest display seconds in Step 1 where the right arrow (blue) is lit is 6 seconds, and the longest display seconds are 110 seconds. Further, the shortest display seconds in Step 2 where Y (yellow) is lit is 1 second, and the longest display seconds are 10 seconds. The shortest display seconds in steps 3 to 18 in which R (red) is lit are 21 seconds, and the longest display seconds are 660 seconds. As described above, the lighting order of the lamp colors and the display seconds of each lamp color (the shortest display seconds and the longest display seconds) with respect to the left side of FIG. 9 can be obtained.

  Next, the case where the outflow direction is a right turn will be described. The total display seconds of Steps 1 to 6 in which R (red) is lit (the shortest display time is equal to the longest display time) is 40 seconds, and the display time in Step 7 in which the right turn arrow (blue) is lit is 10 seconds, Y (yellow) is lit in step 8 for 3 seconds, and R (red) is lit in step 9 in the first cycle to step 6 in cycle 2 is the shortest display seconds. The maximum display time is 307 seconds. In addition, the shortest display time in Step 7 of the second cycle in which the right turn arrow (blue) is lit is 1 second, and the longest display time is 110 seconds. Further, the shortest display seconds in Step 8 of the second cycle in which Y (yellow) is lit is 1 second, and the longest display seconds are 110 seconds. Further, the display seconds of R (red) after step 9 in the second cycle are unknown because the step pattern in the third cycle is not known. As described above, the lighting order of the lamp colors and the display seconds of each lamp color (the shortest display seconds and the longest display seconds) for the right turn in FIG. 9 can be obtained.

  Next, the third floor pattern P3 will be described. 10 and 11 are explanatory diagrams showing an example of the third floor pattern P3. FIG. 10 shows the first cycle of the signal cycle, and FIG. 11 shows the second cycle of the signal cycle. One cycle is composed of 18 steps (steps) 1-18. In steps 1 to 9, the crossing direction is stopped in all red, and in steps 10 to 18, the main line direction is stopped in all red. When the floor pattern P3 is designated, traffic control is performed according to the flowchart in the lower part of FIG.

  FIG. 12 is an explanatory diagram showing an example of the lighting order of the lamp colors with respect to the outflow direction based on the third floor pattern. In FIG. 12, the lighting order of the lamp color of each outflow direction (right left, right turn) is shown about the main line going up. The same applies to the main line down, crossing up and down, and the description is omitted.

  First, the case where the outflow direction is immediately to the left will be described. As shown in FIG. 10, in the first cycle, the total display seconds (the shortest display seconds and the longest display seconds are equal) in steps 1 to 3 in which the right arrow (blue) is lit is 35 seconds. The number of seconds displayed in step 5 in which (yellow) is lit is 3 seconds, and the number of seconds displayed in steps 6 to 18 in which R (red) is lit is 62 seconds. Further, as shown in FIG. 11, in the second cycle, the shortest display seconds in steps 1 to 4 in which the right arrow (blue) is lit are 9 seconds, and the longest display seconds are 240 seconds. Further, the shortest display seconds in step 5 where Y (yellow) is lit is 1 second, and the longest display seconds are 10 seconds. Further, the shortest display seconds in steps 6 to 18 in which R (red) is lit are 18 seconds, and the longest display seconds are 730 seconds. As described above, the lighting order of the lamp colors and the display seconds of each lamp color (the shortest display seconds and the longest display seconds) with respect to the left side in FIG. 12 can be obtained.

  Next, the case where the outflow direction is a right turn will be described. The total display time in steps 1 to 3 in which R (red) is lit (the shortest display time and the longest display time are equal) is 20 seconds, and the total display in steps 4 to 7 in which the right turn arrow (blue) is lit. The number of seconds is 30 seconds, the display time in step 8 when Y (yellow) is lit is 3 seconds, and the shortest display of step 9 in the first cycle and step 3 in the second cycle where R (red) is lit The number of seconds is 55 seconds, and the longest display time is 177 seconds. Further, the shortest display seconds in steps 4 to 7 in the second cycle in which the right turn arrow (blue) is lit is 4 seconds, and the longest display seconds are 240 seconds. Further, the shortest display seconds in Step 8 of the second cycle in which Y (yellow) is lit is 1 second, and the longest display seconds are 110 seconds. Further, the display seconds of R (red) after step 9 in the second cycle are unknown because the step pattern in the third cycle is not known. As described above, the lighting order of the lamp colors and the display seconds of each lamp color (the shortest display seconds and the longest display seconds) for the right turn in FIG. 12 can be obtained.

  FIG. 13 is an explanatory diagram showing an example of lamp color information generated with respect to the left direction of the outflow direction. The display seconds (shortest and longest) for the floor pattern P1 in FIG. 13 are the same as the display seconds for the left side in FIG. In other words, the lighting order of the lamp colors when the floor pattern P1 is designated is blue, yellow, red in the first cycle, and blue, yellow, red in the second cycle. Similarly, the display seconds (shortest and longest) for the floor pattern P2 in FIG. 13 are the same as the display seconds for the left side in FIG. Further, the display seconds (shortest and longest) for the floor pattern P3 in FIG. 13 are the same as the display seconds for the left side in FIG. As can be seen from FIG. 13, regardless of which of the floor patterns P1 to P3 is designated, the lighting order of the lamp colors provided when the outflow direction is immediately to the left is blue, yellow, red, and red in the first cycle. Blue, yellow and red in the second cycle.

  Then, the display seconds calculation unit 15 calculates the shortest display seconds 15 seconds of the floor pattern P2 having the shortest blue minimum display seconds in the first cycle among the floor patterns P1 to P3. The shortest display seconds are calculated, and the longest display time 60 seconds of the stage pattern P1 having the longest blue maximum display seconds in the first cycle is calculated as the blue longest display seconds in the first cycle. Hereinafter, yellow, red in the first cycle, blue, yellow, and red in the second cycle can be obtained in the same manner.

  That is, the shortest display time of blue in the first cycle is 15 seconds, and the longest display time is 60 seconds. The number of seconds displayed for yellow in the first cycle is 3 seconds. Further, the shortest display time of red in the first cycle is 62 seconds, and the longest display time is 82 seconds. Further, the shortest display time of blue in the second cycle is 6 seconds, and the longest display time is 440 seconds. The shortest display time of yellow in the second cycle is 1 second, and the longest display time is 10 seconds. Further, the shortest display time of red in the second cycle is 18 seconds, and the longest display time is 730 seconds. Then, the lamp color information labeled “Adopt” shown in FIG. 13 is generated and provided to an external information relay device or road device.

  FIG. 14 is an explanatory diagram showing an example of lamp color information generated when the outflow direction is a right turn. The display seconds (shortest and longest) for the floor pattern P1 in FIG. 14 are the same as the display seconds for the right turn in FIG. That is, the lighting order of the lamp colors when the floor pattern P1 is designated is red, blue, yellow, red in the first cycle, and red, blue, yellow, red in the second cycle. Similarly, the display seconds (shortest and longest) for the floor pattern P2 in FIG. 14 are the same as the display seconds for the right turn in FIG. Further, the display seconds (shortest and longest) for the floor pattern P3 in FIG. 14 are the same as the display seconds for the right turn in FIG. As can be seen from FIG. 14, regardless of which of the floor patterns P1 to P3 is designated, the lighting order of the lamp colors provided when the outflow direction is a right turn is red, blue, yellow, red, And red, blue, yellow and red in the second cycle. The red in the first cycle and the red in the second cycle may be combined into one and handled as the red in the second cycle. The last red in the second cycle may be treated as the red in the third cycle.

  Then, the display seconds calculation unit 15 calculates the shortest display seconds 20 seconds of the first short cycle display pattern P3 with the shortest red display seconds of the first cycle among the floor patterns P1 to P3. It is calculated as the shortest display seconds, and the longest display seconds of 65 seconds of the floor pattern P1 with the longest red display seconds in the first cycle are calculated as the red longest display seconds in the first cycle. Hereinafter, the same can be obtained for blue, yellow in the first cycle, red, blue, yellow in the second cycle, and red in the third cycle.

  That is, the shortest display time of red in the first cycle is 20 seconds, and the longest display time is 65 seconds. Further, the shortest display time of blue in the first cycle is 10 seconds, and the longest display time is 30 seconds. The number of seconds displayed for yellow in the first cycle is 3 seconds. Further, the shortest display time of red in the second cycle is 55 seconds, and the longest display time is 522 seconds. The shortest display time of blue in the second cycle is 1 second, and the longest display time is 240 seconds. The shortest display time of yellow in the second cycle is 1 second, and the longest display time is 10 seconds. Also, the red color in the third cycle is unknown because the floor pattern in the third cycle is unknown. Then, the lamp color information labeled “Adopt” shown in FIG. 14 is generated and provided to an external information relay device or road device.

  Thereby, in the vehicle (on-vehicle device) that has received the information, for example, signal information including only the information required by the vehicle is acquired, not the signal information that is too detailed, such as the number of display seconds for each step (floor). be able to.

  In the example of FIGS. 4 to 14 described above, the case where the lamp color information (signal information) is generated immediately after the start of step 1 of the floor pattern (before the start of step 2) and output to an external device has been described. The provision (generation timing) of color information is not limited to after the start of step 1 and before the start of step 2. For example, the lamp color information can be generated and output at the timing after step 2.

  Hereinafter, a case where the lamp color information is generated and output at a timing after the start of step (floor) 2 and before the start of step 3 will be described. 15 and 16 are explanatory diagrams showing another example of the first floor pattern P1, and FIG. 17 is an explanatory diagram showing another example of the lighting order of the lamp colors with respect to the outflow direction based on the first floor pattern. is there. The difference from FIGS. 4, 5, and 6 is that step (floor) 1 in the first cycle is omitted. The other parts are the same as those in FIGS. 4, 5 and 6, and the description thereof is omitted.

  18 and 19 are explanatory views showing other examples of the second floor pattern P2, and FIG. 20 is an explanatory view showing another example of the lighting order of the lamp colors with respect to the outflow direction based on the second floor pattern. is there. The difference from FIGS. 7, 8 and 9 is that step (floor) 1 in the first cycle is omitted. The other parts are the same as those in FIGS. 7, 8 and 9, and the description thereof is omitted.

  21 and 22 are explanatory diagrams showing another example of the third floor pattern P3, and FIG. 23 is an explanatory diagram showing another example of the lighting order of the lamp colors with respect to the outflow direction based on the third floor pattern. is there. The difference from FIGS. 10, 11 and 12 is that step (stage) 1 in the first cycle is omitted. The other portions are the same as those in FIGS. 10, 11 and 12, and the description thereof is omitted.

  FIG. 24 is an explanatory diagram showing an example of lamp color information generated when the flow direction changes to the left when the transition is made to the first floor pattern P1, and FIG. 25 is a case where the transition is made to the first floor pattern P1. It is explanatory drawing which shows an example of the lamp color information produced | generated with respect to a right turn. The display seconds (shortest and longest) for the floor pattern P1 in FIG. 24 are the same as the display seconds for the left side in FIG. In other words, the lighting order of the lamp colors when the floor pattern P1 is designated is blue, yellow, red in the first cycle, and blue, yellow, red in the second cycle. Similarly, the display seconds (shortest and longest) for the floor pattern P2 in FIG. 24 are the same as the display seconds after step (stair) 3 in the first cycle with respect to the left side in FIG. Also, the display seconds (shortest and longest) for the floor pattern P3 in FIG. 24 are the same as the display seconds after step (stair) 6 in the first cycle with respect to the left side in FIG. The reason why some steps of the floor patterns P2 and P3 are excluded is that the transition to the floor pattern P1 is made.

  Further, the display seconds (shortest and longest) for the floor pattern P1 in FIG. 25 are the same as the display seconds for the right turn in FIG. In other words, the lighting order of the lamp colors when the floor pattern P1 is designated is red, blue, yellow in the first cycle, red, blue, yellow in the second cycle, and red in the third cycle. Similarly, the display seconds (shortest and longest) for the floor pattern P2 in FIG. 25 are the same as the display seconds after the first cycle step (step) 9 for the right turn in FIG. Further, the display seconds (shortest and longest) for the floor pattern P3 in FIG. 25 are the same as the display seconds after the first cycle step (stage) 9 for the right turn in FIG. The reason why some steps of the floor patterns P2 and P3 are excluded is that the transition to the floor pattern P1 is made.

  FIG. 26 is an explanatory diagram showing an example of lamp color information generated when the flow direction changes to the left when the second floor pattern P2 is changed, and FIG. 27 is a case where the flow changes to the second floor pattern P2. It is explanatory drawing which shows an example of the lamp color information produced | generated with respect to a right turn. The display seconds (shortest and longest) for the floor pattern P1 in FIG. 26 are the same as the display seconds for the left side in FIG. In other words, the lighting order of the lamp colors when the floor pattern P1 is designated is blue, yellow, red in the first cycle, and blue, yellow, red in the second cycle. Similarly, the display seconds (shortest and longest) for the floor pattern P2 in FIG. 26 are the same as the display seconds after step (stair) 2 in the first cycle relative to the left in FIG. Further, the display seconds (shortest and longest) for the floor pattern P3 in FIG. 26 are the same as the display seconds after the first cycle step (stage) 6 on the left side in FIG. The reason why some steps of the floor patterns P1 and P3 are excluded is that the transition to the floor pattern P2 is made.

  In addition, the display seconds (shortest and longest) for the floor pattern P1 in FIG. 27 are the same as the display seconds after step (floor) 9 in the first cycle for the right turn in FIG. That is, the lighting order of the lamp colors when the floor pattern P1 is designated is red, blue, yellow in the second cycle, and red in the third cycle. Similarly, the display seconds (shortest and longest) for the floor pattern P2 in FIG. 27 are the same as the display seconds for the right turn in FIG. Further, the display seconds (shortest and longest) for the floor pattern P3 in FIG. 27 are the same as the display seconds after the step (step) 9 in the first cycle for the right turn in FIG. The reason why some steps of the floor patterns P1 and P3 are excluded is that the transition to the floor pattern P2 is made.

  FIG. 28 is an explanatory diagram showing an example of lamp color information generated when the flow direction changes to the left when the transition is made to the third floor pattern P3, and FIG. 29 is a case where the transition is made to the third floor pattern P3. It is explanatory drawing which shows an example of the lamp color information produced | generated with respect to a right turn. The reason why some steps of the floor patterns P1 and P2 are excluded is that the transition to the floor pattern P3 is made. The other parts are the same as those in FIGS. 26 and 27, and thus description thereof is omitted.

  In the above-described embodiment, the case where the main road intersects with the intersection road has been described. However, the intersection is not limited to the intersection in a cross shape, and a time difference display such as a three-way or a five-way is shown. The traffic signal control apparatus 10 of the present embodiment can be used at any structure intersection as long as it can be performed.

  In the above-described embodiment, the vehicle signal lamp has been described. However, the present invention is not limited to the vehicle, and may include a pedestrian signal lamp. When signal lights for pedestrians are included, lamp color information (signal information) that provides display seconds when the display seconds for pedestrian lamp colors (blue, blue flashing, red, etc.) are determined. ) Should be included. Until the display seconds are determined, it is safer to make the lamp color and display seconds unknown.

  In the above-described embodiment, the storage unit 16 stores the floor patterns P1 to P3. However, the present invention is not limited to the structure that stores all the floor patterns P1 to P3. For example, when the direction in which the time difference display is performed is determined for one inflow path, the floor pattern P1, P2 or the floor pattern P1, P3 is used to switch the floor pattern depending on whether the time difference display is performed. Can be stored.

  In the above-described embodiment, the floor patterns P2 and P3 are merely examples, and a floor pattern in which the direction for displaying the time difference between the main road and the intersection road is appropriately changed may be used.

  The disclosed embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

11 Control unit 12 Traffic information acquisition unit 13 Time difference display determination unit (designating means)
14 Light color determination unit (determination means)
15 display seconds calculation unit (total display seconds calculation means, longest display seconds calculation means, shortest display seconds calculation means)
16 Storage unit (storage means)
17 Provision information generation part (generation means)
18 Output unit 19 Light color control unit

Claims (7)

A storage means for storing a plurality of floor patterns in which a plurality of lamp colors are turned on or off for each floor, and a specifying means for designating one floor pattern from the plurality of floor patterns stored according to traffic demand, and an intersection A traffic signal control device that performs traffic signal control for each outflow direction of
When the designation means designates one floor pattern from the plurality of floor patterns at the time of switching of the floors, whether or not the lighting order of the lamp colors with respect to any outflow direction at the intersection of each of the plurality of floor patterns is equal. Determining means for determining
If it is determined that the lighting order of the light color is equal to said outflow direction by said determining means further comprising a generating means for generating a light color information including the lighting order of the light color with respect to the outflow direction at the time when the revised switches A traffic signal control device. The plurality of floor patterns include display seconds of each lamp color on each floor,
When the same lamp color with respect to the outflow direction is in a lit state in a plurality of successive floors, a total display seconds calculation means for calculating a total display seconds totaling the display seconds of each of the plurality of floors,
The generating means includes
The total display time calculated by the total display time calculation means is configured to be included in the lamp color information as a display time of the same lamp color with respect to the outflow direction. Traffic signal control device. A storage means for storing a plurality of floor patterns in which a plurality of lamp colors are turned on or off for each floor, and a specifying means for designating one floor pattern from the plurality of floor patterns stored according to traffic demand, and an intersection A traffic signal control device that performs traffic signal control for each outflow direction of
Even if any of the plurality of floor patterns is specified, a determination unit that determines whether or not the lighting order of the lamp colors with respect to any outflow direction of the intersection is equal,
Generating means for generating lamp color information including the lighting order of the lamp colors with respect to the outflow direction when the determination means determines that the lighting order of the lamp colors is equal;
With
The plurality of floor patterns include the longest display seconds of each lamp color on each floor,
When the same lamp color for the outflow direction is on in a plurality of successive floors of each of the plurality of floor patterns, the longest display for calculating the longest display seconds by summing the longest display seconds of each of the plurality of floors further comprising a number of seconds calculating means,
The generating means includes
The longest display seconds among the longest display seconds for each of the plurality of floor patterns calculated by the longest display seconds calculation means are included in the lamp color information as the longest display seconds of the same lamp color in the outflow direction. exchange communication signal control device you characterized in that are configured to. A storage means for storing a plurality of floor patterns in which a plurality of lamp colors are turned on or off for each floor, and a specifying means for designating one floor pattern from the plurality of floor patterns stored according to traffic demand, and an intersection A traffic signal control device that performs traffic signal control for each outflow direction of
Even if any of the plurality of floor patterns is specified, a determination unit that determines whether or not the lighting order of the lamp colors with respect to any outflow direction of the intersection is equal,
Generating means for generating lamp color information including the lighting order of the lamp colors with respect to the outflow direction when the determination means determines that the lighting order of the lamp colors is equal;
With
The plurality of floor patterns include the shortest display seconds of each lamp color on each floor,
The shortest display for calculating the shortest display seconds by summing the shortest display seconds of each of the plurality of floors when the same lamp color with respect to the outflow direction is on in a plurality of successive floors of the plurality of floor patterns. further comprising a number of seconds calculating means,
The generating means includes
Of the shortest display seconds for each of the plurality of floor patterns calculated by the shortest display seconds calculation means, the shortest display seconds are included in the lamp color information as the shortest display seconds of the same lamp color in the outflow direction. exchange communication signal control device you characterized in that are configured to. The storage means
First staircase pattern for not performing time difference display, second staircase pattern for performing time difference display for one inflow path facing at the intersection, facing the one inflow path 5. The storage device according to claim 1, wherein at least two step patterns are stored among the third step patterns for performing the time difference display on the inflow path. The traffic signal control apparatus as described.   The traffic signal control device according to any one of claims 1 to 5, wherein the plurality of floor patterns have the same number of floors. A storage means for storing a plurality of floor patterns in which a plurality of lamp colors are turned on or off for each floor, and a specifying means for designating one floor pattern from the plurality of floor patterns stored according to traffic demand, and an intersection A traffic signal control method by a traffic signal control device that performs traffic signal control for each outflow direction of
When the designation means designates one floor pattern from the plurality of floor patterns at the time of switching of the floors, whether or not the lighting order of the lamp colors with respect to any outflow direction at the intersection of each of the plurality of floor patterns is equal. A step of determining the determination means ;
Generating the lamp color information including the lighting order of the lamp color with respect to the outflow direction when the level is switched when it is determined that the lighting order of the lamp color with respect to the outflow direction is equal. Traffic signal control method.

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