KR880003148Y1 - A traffic lights - Google Patents

Abstract

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Description

Operating time display device of traffic lights

1 is a block diagram of the main signal synchronization and switching circuit in the present invention.

2 is a configuration diagram of a clock signal generation circuit unit in the present invention.

3 is a flashing operation timing chart for explaining the operation of the present invention.

Figure 4 (a) is an appearance configuration diagram showing an embodiment of the present invention applied to the intersection traffic light, Figure 4 (b) is an appearance configuration diagram showing an embodiment applying the present invention to a traffic light for crosswalk.

* Explanation of symbols for main parts of the drawings

20: comparative sheet 30: 1/32 minutes

40: ring counter 70: oscillation unit

Q ₁ -Q ₉ : Transistor Ry ₁ -Ry ₁₀ : Relay

S ₁ -S ₁₂ : escial (SCR) Cds ₁ -Cds ₃ : photoconductive cell

VR ₁ , VR ₂ : Variable resistor IN ₁ -IN ₃ : Inverter

L ₁ -L ₈ : Indicator light

The present invention relates to a time display device installed in addition to the crossroad intersection or pedestrian crossing traffic lights so that drivers and pedestrians can easily see the operating time of the progress and stop time.

In the past, the traffic light flickered repeatedly to approach the end of the progress and stop operation time, allowing the driver or pedestrian to recognize it. However, the flashing is not displayed until the end of the progress and stop state. Frequent vehicles or pedestrians rush to cross the pedestrian crossing in time, and the risk of traffic accidents has always been followed.

The present invention considers such a conventional problem by sequentially flashing operation by a plurality of auxiliary lights divided into eight times the remaining time of the progress (blue signal) and stop (red signal) time, allowing the driver or pedestrian to visually It can be easily faced to devise in order to prevent the risk of smooth traffic and school accidents in advance as described in detail by the accompanying drawings as follows.

1 is a main signal synchronization and disease circuit in the present invention, the photoconductive cells (Cds ₁ ), (Cds ₂ ) and the optical signal coupled to the stop light (LR) and the progress signal (LB), respectively, SCR (S ₉ ), (S ₁₀₎ and connected to the gate relay (Ry5) ₈ based on the same, and configured to switch its contact point _{(SW 1), (SW 2} ), the second-degree ring counter of (ring counter) (40) the output of the The gates of the SCRs (S _1- S ₈ ) are respectively connected to the terminals 1-8 connected to the terminals (01-08), and the time indicator (L ₁ ) is provided at the contacts of the corresponding relays (R ₁ -R ₈ ). -L ₈ ) is configured by connecting the gates of the triacs (T ₁ -T ₈ ) to turn off the lights sequentially in the lit state.

After connecting the relay Ry ₁₀ to the normal unstable multivibrator 50, its contacts e and f are connected to the contacts of the relays Ry _{5 to} Ry ₈ , and the terminals 11 The turn-off circuit 60 composed of the SCRs S ₁₁ and S ₁₂ and the condenser C ₁ is connected via the inverter IN ₁ , and this is in common with the cathode side of the SCRs S ₁ -S ₂ .

In addition, the terminals 11 are connected to the contacts a and a 'of the relay Ry ₉ through the variable resistor VR ₁ and the capacitor C ₂ , and to the contacts b and b'. The variable resistor VR ₂ and a capacitor are connected to the terminal 11.

2 is a clock signal generation circuit part according to the present invention, and an inverter is provided to an oscillator 70 comprising a comparator 20, a photoconductive cell Cds, a lamp L _A , a diode D ₁ and a transistor Q ₉ . a clock terminal (C) of the ring counter 40 connected to clock terminal (C) of the 1/32 frequency divider 30 by way of the (iN _2), and via an inverter (iN ₃₎ on its output terminal (O ₇₎ Is connected, and the gate side of the SCR (S ₁ -S ₂ ) shown in FIG. 1 is connected to each of the output terminals O ₁ -O ₂ .

In the drawings, reference numeral AC denotes an AC power source, B ⁺ a DC power source, and IN ₄ denotes an inverter for control of a receive.

Referring to the effect of the present invention configured as described above are as follows.

For example, in traffic lights for pedestrian crossings. Claim 4 (b) also, such as stop signals red, as shown in (L _R) is there is so with the light a predetermined time condition, and thus stop signal red light (L _R) Initially the SCR (S ₁ when the state illuminates -S ₈ ) is turned off so that transistors Q ₁ -Q ₈ are conducted so that each relay Ry ₁ -Ry ₈ is excited and all of its corresponding contacts are connected. Therefore, the triac (T ₁ -T ₈ ) is turned on (Turn On) state, the auxiliary lamps (L _1- L ₈ ) indicating each remaining time is in a state of lighting.

In this state, the auxiliary light (L ₁ ) → (L ₂ ) → (L ₃ ) → (L ₄ ) → (L ₅ ) → (L ₆ ) → (L ₇ ) → (L ₈ ) The remaining time is displayed visually easily, and the remaining time is not merely turned off during the remaining time corresponding to the auxiliary light (L ₅ ) to the auxiliary light (L ₈ ). It is easy to indicate that the end time is imminent.

Next, a circuit operation in which the auxiliary lamps L _{1 to} L ₈ are sequentially turned off is described as follows.

In FIG. 1, the photoconductive cell Cds ₁ , which is a light-receiving element optically coupled thereto, is turned on while the red light L _R for the stop signal is turned on, and a pulse is applied to the gate side of the SCR S ₉ . ₉ ) is turned on so that the relay (Ry ₉ ) is not excited.

Therefore, the contacts of the switches SW ₁ and SW ₂ are gradually switched to (b) and (b ') to adjust the voltage applied to the terminal 10 by the value of the variable resistor VR ₂ . The blinking time of the indicator can be adjusted.

Thus, the voltage applied to the terminal 10 is applied to the base of the transistor (Q ₉₎ in the oscillation unit 70 shown in FIG. 2 by conducting the transistor (Q _9), a light emitting lamp connected to its emitter (L _A ) lights up.

Here, the amount of base current of the transistor Q ₉ is adjusted by adjusting the value of the variable resistor VR ₂ , so that the brightness of the lamp L _A is changed. Accordingly, the resistance of the photoconductive cell Cds ₃ coupled thereto is increased. Therefore, since the low and high pulses appear repeatedly at the output terminal of the comparator 20, the oscillation operation is performed.

At this time, as the diode D ₁ , the low pulse is grounded, and only the high pulse is inverted to the low pulse through the inverter IN ₂ , so that it is applied to the clock input terminal C of the 1/32 divider 30 which is a 14-bit binary counter. is input, the output is at a high pulse its output terminal (O _5).

Here, the 1/32 minute period 30 operates as a negative going trigger.

Therefore, the high pulse of the output terminal O ₅ is applied to the input terminal of the inverter IN ₃ through the condenser C ₄ , and the signal is inverted into a high pulse signal through the inverter IN ₃ , thereby ringing the counter. A high signal is output to the output terminal O ₁ because it is applied to the clock input terminal C of 40.

This high signal is input to the gate terminal 1 shown in FIG. ₁ to conduct SCR (S ₁ ) so that the transistor Q ₁ is cut off. Therefore, since the relay Ry ₁ is not excited and its contact is opened, the triac T ₁ is turned off so that the first indicator L ₁ is turned off.

Subsequently, the same circuit operation as described above is performed to sequentially turn off the indicators L ₂ → L ₃ → L ₄ . Then, when the remaining time has passed 1/2, the relay Ry ₁₀ is repeatedly excited or not excited due to the oscillation operation of the multivibrator 50, and the contacts e and f are connected and opened. Since the state is repeated, even if the contacts of the relays Ry ₅ -Ry ₈ are connected, the indicators L ₅ -L ₈ are sequentially flashed as shown in FIG. 3 to indicate that the remaining end time is imminent. do.

On the other hand, in the state where the progress signal blue light L _… is turned on for a predetermined time, when the photoconductive cell Cds _{2 of} FIG. ₁ is turned on for a predetermined time, the corresponding photoconductive cell Cds _{2 of} FIG. ₁ is turned on. Since a pulse is applied to the gate side of the SCR (S ₁₀ ), the SCR 10 is turned on so as not to excite the relay R ₉ , and the subsequent circuit operation is performed in the same manner as described above, thereby performing the remaining time accordingly. Will be displayed.

On the other hand, in order to turn the SCR (S ₁ -S ₈ ) of FIG. ₁ to the initial state, the turn-off circuit composed of SCR (S ₁₁ ), (S ₁₂ ) and the capacitor (C ₁ ) is configured.

In this way the subject innovation, which operates as the 4 (a) also, claim 4 (b) is also L (such as a number of auxiliary indicating the stop, and the remaining time of the processing time at the intersection with traffic light and for the pedestrian crossing lights, as shown in Figure ₁ - L ₈ ) is additionally installed, and the yellow transparent glass plate 80 is attached to the front surface so as to be easily distinguished from a long distance, thereby improving luminous efficiency.

In addition, in the present invention, only the remaining time indicators of the stop and progress states are described, but the same circuit configuration may be additionally installed to display the remaining time of the left turn signal indicator (yellow signal lamp).

In this way, the present invention indicates that the remaining time between the stop or the running time is flashed sequentially as a plurality of auxiliary lights divided into eight equal parts, so that the driver or pedestrian can directly recognize the remaining time by looking at the naked eye. The effect is, of course, a beneficial design that can prevent the risk of traffic accidents.

Claims (1)

After connecting the 1/32 minute period 30 to the ordinary oscillator 70 through the inverter IN ₂ , the ring counter is connected to the output terminal O ₅ through the capacitor C ₄ and the inverter IN ₃ . And an output terminal (O ₁ -O ₈ ) thereof is connected to the base of the SCR (S _1- ) connected to the base of the transistors (Q ₁ -Q ₈ ) which control the blinking operation of the indicator lamps L ₁ -L ₈ , respectively. S ₈ ), and optically couples the conduction cells Cds 澗 and Cds ₂ to known stop and progress indicators L _R and L _B , with one end of them Indicator lamps L _{1 to} L ₈ flash sequentially by connecting to the gates of SCR S ₉ and S ₁₀ connected to the relay Ry ₉ that controls the output signal value of the power generation unit 70. Indication of the operating time of the traffic lights.