JP2017188029A - Signal light device for pedestrian with waiting time display function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a waiting time display part on a side of a green doll light and the green doll light from lighting simultaneously.SOLUTION: A waiting time lighting control part 5 comprises: an AC/DC conversion part 5a; and a MPU part 5b for performing lighting control and light out control of waiting time lighting parts 31-38 of a waiting time display part 3c or waiting time lighting parts 41-48 of a waiting time display part 4c, according to an input according to red light and green light from the AC/DC conversion part 5a. A waiting time lighting control part 5 comprises a compulsion light-out part 5d to which a branch line branched from a DC output of a red light from the AC/DC conversion part 5a and an output line to the waiting time lighting part 41 of the MPU part 5b are input, and which outputs to the waiting time lighting part 41 through a lighting output line Rt1. The compulsion light-out part 5d contains therein, an AND circuit, in which output to the waiting time lighting part 41 is stopped regardless of an output command to the waiting time lighting part 41 of the MPU part 5b at the same time to extinction of output of the DC output line Rt'o, the waiting time lighting part 41 is turned off.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pedestrian signal lamp having a waiting time display function for displaying a waiting time until crossing is possible.

  Patent Document 1 discloses a pedestrian signal lamp having a remaining crossing time display function for displaying a waiting time until crossing is possible. A plurality of waiting time lighting parts are arranged at equal intervals next to the doll light indicating the red signal and the blue signal of this pedestrian signal lamp, and at the same time the doll symbol of the red signal lights up in the waiting time lighting part, All the waiting time lighting parts beside the red signal doll pattern are lit, and at the crossing remaining time display part, the green light doll pattern is lit, and all the waiting time lighting parts beside the green signal doll pattern are lit.

  And all the waiting time lighting parts next to the lit red doll lights are turned off sequentially from the top as time passes, and all the waiting time lighting parts are turned off, so that the green light doll lights are turned off. Switch to lighting. In this way, it is possible to inform the pedestrian of the waiting time for the red light until the vehicle can cross.

  Further, in Patent Document 2, the doll design, the waiting time lighting unit, and the remaining crossing time display unit are displayed in separate frames so that the red signal doll design and the green signal doll design are easy to visually recognize and can be appropriately judged. An LED type pedestrian signal lamp is disclosed.

  This LED-type pedestrian signal lamp lights up the red light doll symbol when the red light doll symbol lights up, and when the green signal doll symbol lights up, the red signal doll symbol lights up next to the red signal doll symbol. The remaining crossing time display section lights up.

  FIG. 6 shows a block diagram of a conventional pedestrian signal lamp 1 in which the doll symbol, the waiting time lighting section and the crossing remaining time display section are lit and displayed in different frames. Connected. The signal control unit M1 of the signal controller M is red via the terminal connection unit 2 of the pedestrian signal lamp 1 in accordance with the lighting control program for the main and secondary vehicle signal lamps and pedestrian signal lamps. 100 VAC is applied to the lamp 3 or the blue lamp 4, and the red doll lamp 3b of the red doll lamp section 3a or the blue doll lamp 4b of the blue doll lamp section 4a is turned on and off. .

  Further, the pedestrian signal lamp 1 includes a waiting time lighting control unit 5 that controls turning on and off of the remaining crossing time display unit 3c and the waiting time display unit 4c, and power supply to the waiting time lighting control unit 5 is provided. As a trigger, a lighting control program for the remaining crossing time display unit 3c and the waiting time display unit 4c is started, and lighting control of the lighting patterns of the remaining crossing time display unit 3c and the waiting time display unit 4c is performed.

  In the lighting control of these lighting patterns, all of the waiting time lighting portions 41 to 48 of the waiting time display portion 4c arranged next to the blue doll lamp 4b are turned on when the red signal is stopped, and the uppermost waiting time lighting is performed. The lights are sequentially turned off from the part 48, and finally the waiting time lighting part 41 at the lowest stage is turned off, so that the blue doll lamp 4b is turned on.

  Then, at the time of crossing which is a green light, the remaining crossing time lighting units 31 to 38 of the remaining crossing time display unit 3c arranged beside the red doll lamp 3b are turned on, and the uppermost remaining crossing time lighting unit 38 is first turned off. Finally, the remaining crossing time lighting unit 31 in the lowermost stage is turned off to switch to a red signal, and lighting control of the lighting pattern of the remaining crossing time display unit 3c and the waiting time display unit 4c is repeated.

  The waiting time lighting control unit 5 is a component of the waiting time lighting control unit 5 from the branch line Rto from the AC 100V power line Ro to the red lamp 3 and the branch line Bto from the AC 100V power line Bo to the blue lamp 4. In addition, power is supplied to the remaining crossing time display unit 3c of the red lamp 3 and the waiting time display unit 4c of the blue lamp 4.

JP 2005-310015 A JP 2006-092512 A

  A program for controlling the lighting of the waiting time lighting units 41 to 48 or the crossing remaining time lighting units 31 to 38 that is activated by the power supply from the signal controller M as a trigger is to prevent erroneous detection based on instantaneous interruption due to noise or the like. When the waiting time lighting control unit 5 confirms that the voltage input from the signal controller M has been continuously lost at intervals of several hundreds of milliseconds, the lighting control of the waiting time lighting unit or the remaining crossing time lighting unit is finished. Turns off.

  Due to the delay of several hundreds of milliseconds for prevention of false detection, the timing of the blue doll light 4b and the waiting time display unit 4c that are originally synchronized are shifted to the timing of turning off the red doll lamp 3b and the lighting time of the remaining crossing time display unit 3c. Will occur.

  However, when switching from the green signal to the red signal, the remaining crossing time lighting unit 31 at the bottom of the crossing remaining time display unit 3c is turned off during the blinking time of the green signal, so the lighting of the remaining crossing time lighting unit 31 and the red doll are turned on. There is no problem in starting the lighting of the lamp 3b.

  However, when switching from a red signal having no blinking period to a blue signal, the red doll lamp 3b is switched from the red doll lamp 3b even though the lowermost waiting time lighting part 41 of the waiting time display part 4c is in a lit state due to a shift in the turn-off timing. It may switch to the blue doll lamp 4b and the lighting of the blue doll lamp 4b may start.

  In such a case, for the pedestrian who is gazing at the lighting pattern of the waiting time display unit 4c, the remaining lighting of the waiting time lighting unit 41 is delayed in noticing the lighting of the blue doll lamp 4b, and the start of crossing the intersection There may be a problem that the timing is delayed.

  Moreover, although it is a short time, when the waiting time lighting part 41 and the blue doll lamp 4b are lit simultaneously, the pedestrian may misunderstand that the pedestrian signal lamp 1 is out of order.

  An object of the present invention is to provide a pedestrian signal lamp with a waiting time display function that solves the above-described problems and prevents the waiting time display unit next to the blue doll lamp from being turned on simultaneously.

  In order to achieve the above object, a pedestrian signal lamp with a waiting time display function according to the present invention has a plurality of waiting time lighting sections arranged at equal intervals in the vertical direction next to a blue doll lamp, and a waiting time lighting control section. As the time elapses from the lighting pattern that turns on all the waiting time lighting parts via the lighting output line, the lights are turned off sequentially from the uppermost waiting time lighting part, and only the lower waiting time lighting part is turned on. A walking signal lamp with a waiting time display function that sequentially controls lighting until a lighting pattern to be turned on, wherein the waiting time lighting control unit controls lighting of the lighting pattern from input of an output line corresponding to turning on and off of a red signal A forced extinguishing part for forcibly turning off the waiting time lighting part at the lowermost stage is arranged between the waiting time lighting control part and the waiting time lighting part at the lowermost stage. And

  According to the pedestrian signal lamp with a waiting time display function according to the present invention, by providing a forced turn-off unit that forcibly turns off the waiting time lighting part at the bottom of the blue doll lamp waiting time display part, The lighting timing of the doll lamp is synchronized with the turn-off timing of the lowest waiting time lighting portion, and the remaining lighting of the lower waiting time lighting portion is eliminated.

It is a block circuit block diagram of the signal lamp device for pedestrians with a waiting time display function. It is a front view of the signal lamp device for pedestrians. It is a flowchart figure of the MPU part of the signal lamp device for pedestrians. It is an operation | movement timing chart figure. It is a block circuit block diagram of the signal lamp device for pedestrians of another form. It is a block circuit block diagram of the conventional signal light device for pedestrians with a waiting time display function.

The present invention will be described in detail based on the embodiment shown in FIGS.
FIG. 1 is a block circuit configuration diagram of a pedestrian signal lamp with a waiting time display function of the embodiment, and FIG. 2 is a front view of the pedestrian signal lamp. For the signal control machine M attached to a column such as a vehicular signal lamp at each intersection, normally, a total of four pedestrian signal lights, one pair of pedestrian signal lamps 1 for each main road and secondary road. A vessel 1 is arranged.

  The pedestrian signal lamp 1 includes a terminal connection 2 connected to the signal controller M, a red lamp 3 and a blue lamp 4 connected to the signal controller M via the terminal connection 2, and these red lights. It comprises a waiting time lighting control section 5 that is connected to the lighting device 3 and the blue lamp device 4 and that is connected to the signal controller M via the terminal connection portion 2. The signal controller M obtains electric power from commercial AC power, and the red signal is supplied to the pedestrian signal lamp 1 in accordance with the lighting control program of the main and secondary vehicle signal lamps and pedestrian signal lamps of the signal control unit M1. During the lighting period of the signal, AC100V is output to the power line Ro, and during the lighting period of the blue signal, AC100V is output to the power line Bo to control the lighting of the blue signal and the red signal.

  The output from the signal control unit M1 to the power line Ro continues to be output continuously over the red signal lighting time, and when the red signal is switched to the blue signal, the blue signal lighting time with respect to the power line Bo for lighting the blue signal. Are output over. However, although the output of the power line Bo is continuously output for the first predetermined time, it is output intermittently for the blink control of the pedestrian green signal after the predetermined elapse of time.

  The red lamp 3 includes a doll lamp unit 3a, and a power line Ro is connected through a connector C1. The doll lamp unit 3a lights the red doll lamp 3b while AC100V indicating the lighting period of the red signal is input. In addition, the red lamp 3 includes a remaining crossing time display unit 3c including remaining crossing time lighting units 31 to 38 that are interlocked with the lighting of the blue lamp 4.

  The power line Ro branches in the red lamp 3 and outputs AC 100 V to the waiting time lighting control unit 5 through the branch line Rto. The connector C1 connects the power line Ro inside and outside the lamp and the branch line Rto inside and outside the lamp. When the connector C1 is damaged or disconnected, power is supplied to the doll lamp unit 3a and the waiting time lighting control unit 5. It is never supplied.

  Similarly to the red lamp 3, the blue lamp 4 is also provided with a doll lamp unit 4a. AC 100V indicating the lighting period of the green signal is input from the signal controller M and output to the waiting time lighting control unit 5 through the branch line Bto. To do. The doll lamp unit 4a lights the blue doll lamp 4b while AC100V indicating the lighting period of the green signal is input. Further, the blue lamp 4 is provided with a waiting time display unit 4 c including waiting time lighting units 41 to 48 that are linked with the lighting of the red lamp 3.

  As shown in FIG. 2, the waiting time lighting units 41 to 48 are arranged at equal intervals in the vertical direction beside the blue doll lamp 4b, and all waiting times are initially linked to the lighting of the red doll lamp 3b. The lighting parts 41 to 48 are lit. Then, as time elapses, the light is turned off sequentially from the uppermost waiting time lighting section 48, the lowermost waiting time lighting section 41 is turned off, and the blue doll lamp 4b is switched on.

  This turn-off process is the same for the crossing remaining time lighting units 31 to 38, and in conjunction with the lighting of the blue doll lamp 4b, all the crossing remaining time lighting units 31 to 38 beside the red doll lamp 3b are turned on. As the time elapses, the upper crossing remaining time lighting section 38 turns off sequentially.

  In FIG. 2, the crossing remaining time display section and the waiting time display section are provided only on one side of the red doll lamp 3b and the blue doll lamp 4b, but they may be arranged on both sides of the doll lamp. Further, the remaining crossing time lighting function and the waiting time lighting function can be additionally modified for a pedestrian signal lamp that does not have the existing remaining crossing time lighting function and the waiting time display function.

  When remodeling in this way, it is not necessary to add a waiting time lighting control program to the signal control unit M1, and the remaining crossing time display unit 3c, the waiting time display unit 4c, By adding the waiting time lighting control unit 5, a waiting time lighting function can be easily added.

  The waiting time lighting control unit 5 inputs the AC 100V of the branch line Rto indicating the lighting state of the doll lamp unit 3 a from the signal controller M through the red lamp 3 and the signal controller M through the blue lamp 4. AC / DC conversion unit 5a-B such as a photocoupler that converts the level of the AC 100V of the branch line Bto indicating the lighting state of the doll lamp unit 4a into a DC voltage for sending a lighting command to the MPU unit 5b. 5a-R. Further, the connector C2 connects the inner and outer branch lines Rto and the inner and outer branch lines Bto of the waiting time lighting control unit 5.

  The waiting time lighting control unit 5 further receives the remaining crossing time lighting units 31 to 38 of the remaining crossing time display unit 3c and the AC / DC conversion unit 5a with respect to the input corresponding to the blue signal from the AC / DC conversion unit 5a-B. An MPU unit 5b that controls the lighting and extinguishing of the waiting time lighting units 41 to 48 of the waiting time display unit 4c in response to an input corresponding to a red signal from -R, a remaining crossing time display unit 3c of the red lamp 3, and A power supply unit 5 c that supplies power to the waiting time display unit 4 c of the blue lamp 4 is provided.

  The power source unit 5c performs AC / DC conversion on the branch line Rto and the branch line AC100V input from the branch line Bto, which are periodically switched, and then the crossing remaining time display unit 3c via each power line DCo. The power supply 3DC and the power supply 4DC in the waiting time display unit 4c are connected, and power is constantly supplied to the remaining crossing time display unit 3c and the waiting time display unit 4c.

  Further, the lighting output lines Bt and Rt and the power line DCo that connect the waiting time lighting control unit 5 to the red lamp device 3 and the blue lamp device 4 are connected at one end to the waiting time lighting control via the connector C3 of the MPU unit 5b. The other end is connected to the red lamp 3 and the blue lamp 4 via the connector C4 of the remaining crossing time display section 3c and the waiting time display section 4c.

  Further, the waiting time lighting control unit 5 includes a branch line branched from the DC output line Rt′o from the AC / DC conversion unit 5a-R and a lighting output line for controlling the waiting time lighting unit 41 of the MPU unit 5b. Rt1 is connected to the input side, a lighting output line Rt0 to the waiting time lighting unit 41 is connected to the output side, and a forced extinguishing unit 5d for controlling lighting and extinguishing of the waiting time lighting unit 41 is arranged.

  The forced extinguishing unit 5d incorporates a logical product (AND) circuit. The AC / DC conversion unit 5a-R outputs a red signal, and the MPU unit 5b outputs an output for lighting the waiting time lighting unit 41. Only in some cases, the lighting output to the waiting time lighting unit 41 is performed.

  When the output of AC100V indicating the lighting period of the red signal disappears from the signal controller M and the output of the AC / DC converter 5a-R is turned off, the MPU unit 5b confirms to prevent erroneous detection due to noise or the like to be described later Start processing.

  Due to this confirmation process, the output of the lighting output line Rt1 is delayed, but if the AC 100V output indicating the lighting period of the red signal disappears due to the arrangement of the forced light-off part 5d, the DC output line Rt'o is turned off. Therefore, the lighting output line Rt0 that is the output of the forced extinguishing unit 5d is forcibly turned off. Then, when the lighting output line Rt0 is turned off, the lowest waiting time lighting unit 41 of the waiting time display unit 4c is turned off. That is, even when the MPU unit 5b is delayed in control of turning off the lighting output line Rt1, the waiting time lighting unit 41 can be turned off by eliminating the delay.

  Based on the lighting control program of the signal control unit M1, the output of the AC / DC conversion unit 5a-R is input to the MPU unit 5b by switching from the blue signal to the red signal. Then, using this input as a trigger, the MPU unit 5b performs lighting control of the waiting time lighting units 41 to 48 of the waiting time display unit 4c.

  When the output of the AC / DC conversion unit 5a-B is input to the MPU unit 5b, the MPU unit 5b uses this input as a trigger to control lighting of the remaining crossing time lighting units 31 to 38 of the remaining crossing time display unit 3c. Will do.

  FIG. 3 is a flowchart of a program for controlling the lighting of the waiting time display unit 4c and the remaining crossing time display unit 3c, and the program starts when power is supplied to the MPU unit 5b.

  The processing of steps S1 to S2 is processing that starts when the power of the MPU unit 5b is input or when the MPU unit 5b is reset and the program is started or restarted. The input of the DC output line Rt'o and the DC output line Bt'o is determined until the program is started and it is determined whether the signal is a red signal or a blue signal (step S1-N, step S2-N).

  For example, in the case of a red signal, since the output of the AC / DC converter 5a-R is on, it is determined in step S1 that the DC output line Rt′o is on (step S1-Y), and the process proceeds to a subroutine program. The process starts from the lighting control process of the waiting time display unit 4c.

  In the case of a blue signal, since the output of the AC / DC converter 5a-B is on, it is determined in step S2 that the DC output line Bt'o is on (step S2-Y), and the process moves to a subroutine program. The process starts from the lighting control process of the remaining crossing time display unit 3c.

  The processing of steps S3 to S20 of the subroutine program is processing of lighting control of the waiting time lighting units 41 to 48 installed in the blue lamp 4. First, in step S3, the MPU unit 5b stores the waiting time display unit based on the stored input time of the previous DC output line Rt'o, that is, the red display time D which is the previous lighting time of the red doll lamp 3b. Each lighting time P allocated to the lighting pattern 4c is calculated. For example, when the previous DC output line Rt'o input time is 80 seconds and the number of patterns is 8 as will be described later, the lighting times P of the patterns 1 to 7 are set to 10 seconds.

  When the program shown in FIG. 3 is started for the first time or when the system is reset, the red display time D is zero in the reset state, so the lighting time P is 0 seconds, and steps S6 to S12 described later are pattern 1 The process proceeds without outputting the pattern 7, and the process proceeds to S13 of the pattern 8 output.

  After calculating the lighting time P, the red display time D is reset to zero in step S4, and the counting of the red display time D is started in step S5 to measure the current lighting time. In step S6, control signals are output to the lighting output lines Rt1 to Rt8 corresponding to the waiting time lighting units 41 to 48, and the pattern 1 in which all the waiting time lighting units 41 to 48 are lit is output during the lighting time P. Is done.

  Similarly, in step S7, pattern 2 for lighting the waiting time lighting units 41 to 47 corresponding to the lighting output lines Rt1 to Rt7, and in step S8, waiting time lighting units 41 to 46 corresponding to the lighting output lines Rt1 to Rt6. In the pattern 3 for lighting up, the waiting time lighting sections 41 to 45 corresponding to the lighting output lines Rt1 to Rt5 in Step S9, and in the pattern 4 and step S10 for lighting the lighting output lines Rt1 to Rt4, the waiting time lighting section 41 corresponding to the lighting output lines Rt1 to Rt4. Pattern 5 for illuminating .about.44, in step S11, pattern 6 for illuminating the waiting time lighting portions 41 to 43 corresponding to the lighting output lines Rt1 to Rt3, and waiting time lighting corresponding to the lighting output lines Rt1 to Rt2 in step S12. The pattern 7 for lighting the portions 41 to 42 is sequentially output during each lighting time P. In FIG. 3, steps S8 to S11 are omitted.

  In step S13, the pattern 8 that lights only the waiting time lighting unit 41 via the lighting output line Rt1 is output without setting the lighting time P. Even if the cycle time from the signal controller M is changed by not setting the lighting time P and the red display time D is different from the previous input time of the DC output line Rt′o stored, the red doll light 3b It is possible to turn off the waiting time lighting unit 41 in accordance with the time of turning off.

  Step S14 and subsequent steps are processing for determining that the red signal lighting control is completed. In step S14, the control waits until the DC output line Rt′o is turned off, that is, waits until 0 V is detected (step S14). -N). When the DC output line Rt'o is turned off, that is, when 0V is detected (step S14-Y), a predetermined value is set to the standby timer n in step S15. This value is a standby time indicating a predetermined time interval until it is determined again that the DC output line Rt'o is off.

  In step S16, the standby timer n starts to count down, and in step S17, it waits until the standby timer n becomes zero (step S17-N). After the standby time by the standby timer n has elapsed (step S17-Y), it is determined again in step S18 that the DC output line Rt'o is off.

  For example, when the standby timer n is set to 100 ms in step S15, it is determined in step S18 that the DC output line Rt'o is continuously turned off after 100 ms has elapsed.

  When the DC output line Rt'o cannot be detected to be off (step S18-N), the system is reset and the program is initialized in step S42 as an erroneous detection due to a momentary interruption of noise or the like or an abnormal program operation of the MPU unit 5b. . The program is started from step S1 with the stored red display time D and blue display time E described later being cleared.

  On the other hand, when it is detected that the DC output line Rt′o has been turned off (step S18-Y), it is determined that the red signal has been turned off and the red doll lamp 3b has been turned off, and the lighting output line Rt1 is turned off in step S19. To do.

  Subsequently, the counting of the red display time D is stopped in step S20, the lighting control processing of the waiting time lighting units 41 to 48 is terminated, and the process waits until the DC output line Bt′o is turned on in step S21 (step S21−). N).

  By switching from the red signal to the blue signal, the output of the AC / DC conversion unit 5a-B is input to the MPU unit 5b. Then, with this input as a trigger, the MPU unit 5b starts processing from steps S22 to S40 for performing lighting control of the remaining crossing time lighting units 31 to 38 installed in the red lamp 3.

  Also, in the case of a blue signal at the first start of the program or at the time of system reset, that is, when the DC output line Bt'o is on (step S2-Y), the subroutine program is started from step S22.

  In step S22, the MPU unit 5b stores the previous input time of the DC output line Bt'o, that is, the blue display time E of the previous lighting time of the blue doll lamp 4b, based on the remaining crossing time display unit 3c. Each lighting time Q allocated to the lighting pattern is calculated.

  The processing from step S22 to step S32 includes the waiting time lighting units 41 to 48, the lighting output lines Rt1 to Rt8, the red display time D and the lighting time P from step S3 to step S13, the remaining crossing time lighting units 31 to 38, and the lighting. The same processing is performed in place of the output lines Bt1 to Bt8, the blue display time E, and the lighting time Q.

  Step S33 and subsequent steps are processing for determining that the blue light has ended. In step S33, the process waits until the DC output line Bt'o is turned off, that is, waits until 0 V is detected (step S33-N).

  When the DC output line Bt′o is turned off, that is, when 0V is detected (step S33-Y), the measurement timer m that measures the time until the DC output line Bt′o is turned on again in step S34 is reset, that is, Zero.

  In step S35, the count of the measurement timer m is started, and the process waits until the DC output line Bt'o is turned on in step S36 (step S36-N). When the DC output line Bt'o is turned on (step S36-Y), the count of the measurement timer m is stopped in step S37. In step S38, it is determined whether or not the measured value of the measurement timer m is within the set allowable minimum value F and allowable maximum value G.

  When changing from a blue signal to a red signal, the blue doll lamp 4b is blinked for a predetermined time from the lighting state by a lighting program of the signal control unit M1, and then turned off to turn on the red doll lamp 3b. For example, if the cycle of blinking the blue doll lamp 4b is 200 ms, 100 ms is set as the allowable minimum value F of the measurement value of the measurement timer m after detecting the OFF of the DC output line Bt′o in step S33. 300 ms is set as the allowable maximum value G of the measured value of the timer m.

  In step S38, if the measured value of the measurement timer m is not within the range from the set allowable minimum value F to the allowable maximum value G (step S38-N), erroneous detection due to instantaneous interruption of noise or the like, or the program operation of the MPU unit 5b As an abnormality, the system is reset in step S42 to initialize the program.

  On the other hand, when the measurement value of the measurement timer m is within the range from the allowable minimum value F to the allowable maximum value G (step S38-Y), it is determined that the lighting of the green light has ended and the blinking has started. In step S39, the lighting output line Bt1 is turned off, and the counting of the blue display time E is stopped in step S40. In this way, the lighting control process of the remaining crossing time display unit 3c is finished, and the process waits until the DC output line Rt'o is turned on in step S41 (step S41-N).

  Subsequently, the output of the AC / DC conversion unit 5a-R is input to the MPU unit 5b by switching from the blue signal to the red signal. The MPU unit 5b detects that the DC output line Rt'o is turned on (step S41-Y), and the lighting control process of the waiting time display unit 4c is started.

  The forced extinguishing unit 5d is obtained by the logical product (AND condition) of the input from the lighting output line Rt1 from step S6 to step S19 of the MPU unit 5b and the input from the DC output line Rt′o, and both are input. Only when there is, the lighting output is performed to the waiting time lighting unit 41 via the lighting output line Rt0.

  Therefore, at the same time as the output of the DC output line Rt′o disappears by the forced extinguishing unit 5d, the output to the waiting time lighting unit 41 regardless of the output command to the waiting time lighting unit 41 after step S13 in the flowchart of FIG. Stops, and the waiting time lighting unit 41 is turned off.

  FIG. 4 is a timing chart in the operation of switching from blinking the blue signal to the red signal and further switching from the red signal to the blue signal based on the lighting control program of the signal controller M in the pedestrian signal lamp 1.

  (A) is output from the signal controller M to the pedestrian signal lamp 1, and controls the lighting and extinguishing of the power line Bo for controlling the lighting and extinguishing of the blue doll lamp 4b and the crossing remaining time display unit 3c as the green signal lighting time. It is a timing chart of DC output line Bt'o.

  (B) is output from the signal controller M to the pedestrian signal lamp 1, and controls the lighting and extinguishing of the power line Ro for controlling the lighting and extinguishing of the red doll lamp 3b and the waiting time display unit 4c as the red signal lighting time. It is a timing chart of DC output line Rt'o.

  (C) is an operation of the lighting output line Rt1 output from the MPU unit 5b to the forced extinguishing unit 5d, and is a timing chart based on the program in steps S6 to S19 in FIG.

  (D) is a timing chart showing the output of the lighting output line Rt0 output from the forced extinguishing unit 5d to the waiting time lighting unit 41.

  (E) is an operation of the lighting output line Bt1 output from the MPU unit 5b to the crossing remaining time lighting unit 31, and is a timing chart based on the program in steps S25 to S39 in FIG.

  When the predetermined time is approaching the end of the green signal lighting time, the signal controller M repeatedly turns on and off the AC100V output (power line Bo) indicating the green signal lighting period, and the blue doll lamp 4b flashes.

  The output (DC output line Bt'o) from the AC / DC conversion unit 5a-B to the MPU unit 5b is repeatedly turned on and off. When the MPU unit 5b switches from the first on to the off at the time T1, the MPU unit 5b determines that the lighting period of the green light has ended at the time T2 after the time measurement by the measurement timer m, and turns off the lighting output line Bt1 of (e). To. When the remaining crossing time lighting unit 31 of the remaining crossing time display unit 3c is turned off, all of the remaining crossing time display units 3c are turned off.

  In order to stop the flashing of the blue signal and start the lighting period of the red signal, the signal controller M turns off the output of AC100V (power line Bo) indicating the lighting period of the blue signal, the blue doll lamp 4b is turned off, and the red signal lights AC 100V indicating the lighting time is output to the power line Ro, and the control time for lighting the red doll lamp 3b is performed at the timing of time T3.

  When the output (DC output line Rt′o) of the AC / DC conversion unit 5a-R is turned off at time T4, the lighting output line from the MPU unit 5b of (c) at time T5 after counting by the standby timer n. The output to Rt1 is turned off.

  The output of the lighting output line Rt0 of the forced extinguishing unit 5d in (d) is turned off at time T4 to obtain the logical product of the DC output line Rt'o in (b) and the lighting output line Rt1 in (c). The time lighting unit 41 is turned off. Therefore, the waiting time lighting unit 41 is turned off prior to the control in which the MPU unit 5b turns off the waiting time lighting unit 41.

  As described above, an example of the embodiment to which the present invention is applied has been described. However, the applicable form of the present invention is not limited to the above-described embodiment.

  For example, in steps S6 to S19 in FIG. 3, if the input branched from the DC output line Rt′o of the forced extinguishing unit 5d in FIG. The waiting time lighting unit 41 is turned off instantaneously by the unit 5d.

  Therefore, in order to prevent the waiting time lighting unit 41 from being extinguished instantaneously due to the OFF state of the DC output line Rt′o, as shown in FIG. A red signal output confirmation unit 5f for inputting a branch line from 'o and a branch line from the DC output line Bt'o corresponding to turning on and off of the blue signal through the inverting circuit unit 5e is additionally provided. You can also.

  The red signal output confirmation unit 5f includes a logical sum (OR) circuit, and inputs the output of the logical sum circuit to one side of the forced extinction unit 5d and outputs the output to the lighting output line Rt1 of the MPU unit 5b. Input to the other side. It is assumed that the red signal output confirmation unit 5f and the inverting circuit unit 5e are switched from the red signal to the blue signal only when there is an output of the DC output line Bt'o and there is no DC output line Rt'o. Will be output. Thereby, it is possible to prevent the waiting time lighting unit 41 from being extinguished instantaneously due to the off state of the DC output line Rt'o due to noise or the like.

  In this way, the lighting control to the waiting time lighting unit 41 of the MPU unit 5b is controlled by the forced turning-off unit 5d to forcibly turn off the waiting time lighting unit 41 according to the input conditions, thereby the blue doll lamp 4b. Is synchronized with the extinguishing timing of the waiting time lighting unit 41, and the remaining lighting of the waiting time lighting unit 41 is eliminated.

  Therefore, for the pedestrian who is gazing at the lighting pattern of the waiting time lighting units 41 to 48, there is no delay in noticing the lighting of the blue doll lamp 4b, and the waiting time lighting unit 41 and the blue doll lamp 4b are turned on simultaneously. Thus, it is not recognized that the pedestrian signal lamp 1 is out of order.

DESCRIPTION OF SYMBOLS 1 Pedestrian signal lamp 2 Terminal connection part 3 Red lamp 3a Doll lamp part 3b Red doll lamp 3c Crossing remaining time display part 4 Blue lamp 4c Waiting time display part 5 Waiting time lighting control part 5b MPU part 5c Forcible light extinction 5d Power supply unit 5e Inversion circuit unit 5f Red signal output confirmation unit 31-38 Crossing remaining time lighting unit 41-48 Waiting time lighting unit

Claims (6)

A plurality of waiting time lighting parts are arranged at equal intervals in the vertical direction next to the blue doll lights, and with the passage of time from the lighting pattern in which all the waiting time lighting parts are turned on via the lighting output lines by the waiting time lighting control part A signal lamp for a pedestrian with a waiting time display function that sequentially turns on and off until the lighting pattern in which only the lower waiting time lighting part is turned on is sequentially turned off from the waiting time lighting part at the top. ,
The waiting time lighting control unit starts lighting control of the lighting pattern from input of an output line corresponding to lighting of a red signal and extinguishing,
A waiting time display function characterized in that a forcible extinguishing part for forcibly turning off the waiting time lighting part at the bottom is arranged between the waiting time lighting control part and the waiting time lighting part at the bottom. A pedestrian traffic light.   The forced extinguishing part inputs the red signal lighting, the branch line branched from the output line corresponding to the extinguishing, and the lighting output line of the lowest waiting time lighting part from the waiting time lighting control part, The pedestrian signal lamp with a waiting time display function according to claim 1, wherein the signal is output to a lighting output line to the lowest waiting time lighting section.   The pedestrian signal lamp with a waiting time display function according to claim 2, wherein the forcible light-off unit includes a logical product circuit. The branch line from the output line corresponding to the lighting and extinguishing of the red signal and the branch line from the output line corresponding to the lighting and extinguishing of the blue signal are input via the inverting circuit unit and output to the forced extinguishing unit. It has a red signal output confirmation part,
The forced extinction unit inputs an output line from the red signal output confirmation unit and a lighting output line of the lowest waiting time lighting unit from the waiting time lighting control unit, and the lowest waiting time lighting unit. 2. The pedestrian signal lamp with a waiting time display function according to claim 1, wherein the pedestrian signal lamp is output to a lighting output line.   The pedestrian signal lamp with a waiting time display function according to claim 4, wherein the red signal output confirmation unit includes a logical sum circuit, and the forced turn-off unit includes a logical product circuit.   The waiting time lighting control unit switches the lighting from the red doll lamp to the blue doll lamp when the OFF state is detected continuously at predetermined time intervals from the input of the output line corresponding to the lighting and extinguishing of the red signal. 6. The pedestrian signal lamp with a waiting time display function according to any one of claims 1 to 5, wherein the pedestrian signal lamp has a waiting time display function.

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