JPS6240759B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a push-button traffic signal that operates at regular intervals during specific time periods.

At road crosswalks, as shown in Figure 1,
A vehicle signal light L ₁ is installed on the R ₁ side, a pedestrian signal light L ₂ is installed on the crosswalk R ₂ side, and a traffic signal (push-button traffic signal) is installed that switches the display of the signal light with a push button. . This traffic light displays red on the pedestrian signal light _L2 , displays blue on the vehicle signal light _L1 and waits, and when a pedestrian operates the push button switch, the pedestrian signal light _L2 displays green. In this case, the display of the vehicle signal light _L1 is changed to red.

By the way, there are places where a large number of people pass through at a particular time. For example, at a crosswalk on a road adjacent to a school, there are
Many people cross the road between 5 p.m. and 5 p.m.
At other times, there are fewer people crossing the road. Push-button traffic signals are usually installed at crosswalks with little traffic, but at road crosswalks like the one mentioned above, crossers must frequently operate the push-button switch during specific times in the morning and evening. However, it is extremely troublesome.

On the other hand, if a so-called fixed-cycle traffic signal, in which the display of each signal light L ₁ and L ₂ is switched at regular intervals, is installed in the above location, vehicles and pedestrians will be However, the vehicle traffic light _L1 is periodically switched to red even though there are no people crossing the road outside of that time, which hinders the smooth operation of vehicles. This will cause inconvenience.

When the pair of terminals 1a and 1b are opened,
After going through six steps, the display of the roadside signal light _L1 of the crossing road is switched sequentially from the first step at predetermined time intervals, and then goes through blue, yellow, and red displays, and then returns to the blue display of the first step. , At the same time, the pedestrian signal light L ₂ changes from the red display at the first step to blue and flashing blue, then returns to the red display at the first step, and after one cycle of steps, when both terminals are short-circuited, the roadside signal light The controller 1 has a function of maintaining the state of the first step immediately before the second step of displaying blue on the pedestrian side signal light and red on the pedestrian side signal light, and a pushbutton is used to open/close between the terminals 1a and 1b of the controller. In a push-button type traffic signal operated by a user, a pedestrian push-button box 2 equipped with a push-button switch 3 that opens and closes a pair of terminals 1a and 1b of the control device 1 is equipped with a push-button switch 3 that switches on and off the signal at a specified time. It has a built-in timer 4 that outputs , and a relay 5 that operates in response to the output of the timer 4, and the normally closed contact 5a of the relay 5 is connected to the terminals 1a and 1b including the normally closed contact 3a of the push button switch 3. This push-button traffic signal is characterized by being connected in series to the wiring between the two.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram of an electric circuit showing one embodiment of the present invention. 1 is a signal light for vehicles and pedestrians
A controller that switches the display of _L1 and _L2 , 2 indicates a pedestrian pushbutton box of pushbuttons.

In a normal push-button traffic signal, the controller 1
A normally closed contact 3a of a pushbutton switch 3 housed in a pedestrian pushbutton box 2 is connected between terminals 1a and 1b of the pedestrian pushbutton box 2. Further, the controller 1 operates according to a program shown in FIG. That is, unless pushbutton switch 3 is operated, step 1 and step 2 are not activated.
The traffic light _L1 for vehicles displays blue (G), and the signal light _L2 for pedestrians displays red (PR). W indicates a standby position. Here, when the pushbutton switch 3 is operated and its normally closed contact 3a is opened, the process moves to step 2, and the display of the signal light _L1 is changed to yellow (Y), and the display is changed to red (R) between steps 3 and 6.
, and then return to step 1 and display it in blue (R). On the other hand, step 2 on the pedestrian signal light L ₂ ,
During step 3, the display continues to be red (PR), changes to blue (PG) at step 4, blinks (PW) at step 5, returns to red (PR) display from step 6, and continues until the next pushbutton operation. 1 and 2, and displays blue (G) on the vehicle signal light _L1 and red (PR) on the pedestrian signal light _L2 . Therefore, according to the function of the controller 1 in which this program is installed, the terminals 1a, 1 of the controller 1
Steps 1 to 6 are repeated continuously by keeping the gap B open, and both signal lights operate at regular intervals, and every certain period of time, signal light _L1 displays blue-yellow-red-blue... L ₂ will repeat the display of red - blue - flashing - red....

The present invention utilizes the functions of this controller to utilize a push-button traffic signal as a fixed-period traffic signal. That is, in Figure 2,
A timer 4 and a relay 5 connected to the output terminal of the timer 4 are built into the pedestrian pushbutton box 2, and the normally closed contact 5a of the relay 5 is connected in series with the normally closed contact 3a of the pushbutton switch 3. It is connected between terminals 1a and 1b of a controller 1 of a push-button traffic signal. The timer 4 is one that can generate a control output at any time.
Set the control signal generation time from. For example, a traffic light installed at a crosswalk near a school generates a control output during two-hour periods each from 7:00 a.m. to 9:00 a.m. and from 3:00 p.m. to 5:00 p.m. in the evening, as shown in Figure 4. Set it as follows. Further, the push button box 2 for pedestrians is mounted on a post erected on the side of the road in a position where the push button switch 3 can be easily operated by pedestrians.

Next, the operation of the present invention will be explained. Now, at 7 o'clock in the morning, a control output is generated from the timer 4, the relay 5 is activated, its contact 5a is opened, and the terminals 1a and 1b of the controller 1 are thereby released, and the program shown in FIG. Since the standby W is released, the step of the program progresses and the signal display switching operation starts, and the display cycle of the vehicle and pedestrian signal lights _L1 and _L2 is periodically changed in the pattern shown in Fig. 3. Switch display. At 9 o'clock, the control output of the timer 4 disappears, so the relay 5 is demagnetized and the contact 5a is closed. In this state, the step of controller 1 is to turn on the signal light.
The controller ₁ waits between steps 1 and 2, in which L1 is displayed in blue and the signal light _L2 is displayed in red, and the controller 1 prepares for an input signal by operating the pushbutton switch 3.

When a crosser operates push button switch 3 between 9 a.m. and 3 p.m., terminal 1 of controller 1
A and 1b are opened, the controller 1 starts operating from the standby position W, and from step 2 the controller 1 starts operating the vehicle signal light.
The display of L ₁ is displayed for one cycle of yellow-red-blue, and the display of pedestrian signal light _L2 is displayed for one cycle of red-blue-blinking-red, and the next pushbutton switch 3 is operated at the standby position W. The preparation points are the same as before.

Next, at 3 o'clock in the evening, a control output is generated from the timer 4 during the period from 3 o'clock to 5 o'clock, and this operation is the same as the above-mentioned fixed period operation.

In addition, in the example, the specific time period was set by the timer 4 from 7 to 9 o'clock in the morning and from 3 to 5 o'clock in the evening.
It is not limited to this time period, and can be arbitrarily determined depending on the road situation. Moreover, any timer 4 can be used as long as it can generate a control output at any time period. In addition, although the relay 5 connected to the timer 4 is separate from the pushbutton switch 3, the relay 5 integrated with the pushbutton switch 3 is operated manually and by the output of the timer 4 to change the pushbutton operating state and periodic operation. It may also be possible to switch between the state and the state.

According to the present invention, the push-button traffic signal is not limited to being used as a fixed-period traffic signal;
It can also be applied to a control device for a fixed-period traffic signal and used as a push-button traffic signal. Of course, the pushbutton is not connected to the controller of the ready-made fixed-period traffic light, but by making a slight modification to the controller, it can be combined as is without any modification to the pedestrian pushbutton box. The function is essentially the same as that applied to existing push-button traffic signals.

As described above, according to the present invention, the display cycle of the signal light is performed at regular intervals during a specific time period set in advance by a timer, and other operations are performed by operating a push button switch. It is possible to display traffic signals, which has the effect of smoothly controlling traffic between pedestrians and vehicles.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a road, FIG. 2 is a block diagram of an electric circuit according to the present invention, FIG. 3 is a pattern diagram of a signal lamp display, and FIG. 4 is a timer output waveform diagram. L ₁ ... Signal light for vehicles, L ₂ ... Signal light for pedestrians, 1 ... Control device, 3 ... Push button switch, 4
...Timer, 5...Relay, 5a...Relay normally closed contact.

Claims (1)

[Scope of Claims] 1 When the pair of terminals 1a and 1b is opened, the signal light _L1 on the roadside side of the crossing is displayed the first time at predetermined time intervals by going through six steps. Switching sequentially from the step, going through blue, yellow, and red display, then returning to the blue display of the first step, and at the same time changing the pedestrian side signal light L ₂ from the red display of the first step to blue, then back to the blue display of the first step.
After flashing blue, the display returns to red at the first step, and after one cycle of steps, when both terminals are short-circuited, the signal light on the roadway side displays blue and the signal light on the pedestrian side displays red. In a push-button traffic signal, which has a controller 1 having a function of maintaining one step state, and opens and closes terminals 1a and 1b of the controller by pushbutton operation, a pair of the controller 1 is provided. A pedestrian pushbutton box 2 equipped with a pushbutton switch 3 that opens and closes terminals 1a and 1b includes a timer 4 that outputs a signal at a specified time, and a relay that operates in response to the output of the timer 4. 5, and the normally closed contact 5a of the relay 5 is connected in series to the wiring between the terminals 1a and 1b including the normally closed contact 3a of the pushbutton switch 3. .