JPS5981799A - Signal controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a signal control device for a traffic control signal light used for road construction and the like.

Near an intersection with a traffic light (for example, a few meters from the intersection)
If road construction is being carried out and one-way traffic is restricted, the signal at the intersection (hereinafter referred to as the main signal and IJ7-bu) and the signal from the signal light used at the construction site may not be the same. 2 For example, if the main unit is a signal indicating permission to enter (ijJ' (u゛)) and the signal light for construction is a prohibition (red) signal,
Even though there is a traffic light at a nearby intersection, you have to stop at a construction signal light, and if there are a lot of traffic lights, it will cause traffic problems. Therefore, it is desirable that the main unit signal and the construction signal light signal be synchronized. As a device No. 1d for this purpose, there was a conventional device shown in Figure 1.

In Figure 1, (1) is the main signal, and tz+ is the electronic timer for the construction signal light (hereinafter referred to as signal light) control law.

(3) is a switching device using a toggle switch or the like to switch between the signal from the main signal (1) and the signal from the timer (2).

(4) is one contact of the switching machine (3)], , +51 is the other contact l of the 9-way switching 4-panel tile (3), (61 is the signal light 1
The drive circuit 1 (7) of the relay for controlling the signal light 2 is the drive circuit 2 (8) of the relay for controlling the signal light 1.
Relay 1 for dll, t! Jl is 2 signal light system Kikawa Relay 2. (101 is signal light 1・0υ and o41 is # signal light, 02) and (151 is red signal light, +131 is 1
Light No. 8 2, ub+ is a delay circuit using an electronic timer F61/07) is a delay circuit 2 using an electronic timer
, (181 is a power supply for a relay, 19 is a power supply for a signal light, and 181 is a delay circuit 3 using an electronic timer.

When controlling using the timer (2), the switch (3) is set to the timer (2)'1111I (downward). The signal from timer +21 is turned off”a 11 Contact 1 of +31 (
4) via relay drive circuit 1 (6) and delay circuit 10
6). In relay drive circuit 1 (6), the signal from contact 1 (4) of switching device (3) is sent to relay 1 (8).
The signal is amplified (or attenuated) to the signal level necessary to operate the relay 1 (8), and the relay 1 (8) is operated (ON, 0FF). When relay 1 (8) is ON, relay 1 (8)
The contacts are set upward.

Signal light 1 The signal light circle of t10+ is lit. When the relay 118) is in the OFF state, the contacts of the relay 1 (8) are set downward, and the red signal light 121 of the signal light 100)
is lit. Delay circuit 1 (The signal delayed by a certain period of time is input to the relay drive circuit 2 (7) through the contact 2 (5) of the switching device (3). Relay drive circuit 2 (7) The signal from contact 2 (5) of switch (3) is amplified (or attenuated) to the level necessary to operate relay 2 (9j), and then operates relay 2 (9).
ON, OFF).

When relay 2 (9) is ON, relay 2 (!11
The contact point is set downward, and the 1 of signal light 2 +131!
The signal light circle will be lit. When relay 2 (9) is in the OFF state, the contact point of relay 2 (91) is set downward, and the red live signal light (15) of 1ε light 2 (13+) is lit.

When controlling the signal light in synchronization with the main signal (1), the switching device (3) is set to the main signal tl+ 6111 (upward direction).

The signal from the main signal (1) is processed by the delay circuit 3 i+, which is most effective for Chichidori Shibuura considering the distance 111 to the main signal ((11 and signal light (river), signal light 2u3) and the average running speed of the car +X. There will be a delay of several hours.

This tower is controlled in the same manner as when using the timer (2), and the signal light 1ull is controlled by the signal from the delay circuit 3, and the signal light 2u3 is controlled by the signal delayed for a fixed time of 19i by the delay circuit 2u. flashes. 2 spears and 1 signal light
utll and signal light 2 (131) shows the time transition of the blinking state.

In this device, in order to synchronize the 1st signal light with the main signal light 1a (1), the signal is branched from the main signal (1) and connected to the 13th light system 411 at the construction site using electric wires, etc. It is necessary to wire up to the device, and branching and wiring work is required. In addition, consideration was needed to ensure that the wiring did not obstruct the traffic of cars and people.

The present invention eliminates these drawbacks, easily connects the main signal to the main signal (-synchronized The present invention provides a signal light control device that can control signal lights.

Figure 3 shows one row of the signal light control device of the present invention. j'
+11 in Figure 3. +21. (61-(2)) are the same as those in Figure 1, Ql) is a color transmission light filter that transmits G color better than red, @ is the lens of 1 for condensing light, (support)) is Lens for Togangju's spear 2, ha) photodiode for optical signal reception, b) photodiode for optical signal reception.
・2 photodiodes 2. (a) is interest 4” J ilt
An amplifier with a control terminal (hereinafter referred to as the amplifier 1), n is the waveform shaping circuit, 12 is the gain; 12ω is the comparator, G! B is the reference pressure circuit, (:II) is the intercept control circuit, and +32) is the waveform shaping circuit (automatic switching Jl using a relay to switch the signal from 271 and the signal from timer (2). The line connecting the center of the lens of Fang 1 (24 and the center of the photodiode of Fang 1) and the center of the photodiode of Fang 2 is the main signal (1). It will be fixed so that it faces the signal light.
- The signal light from the main traffic light (1) is passed through the blue transmitted light filter Ul.
At l, the TV color signal light is transmitted with a cylindrical transmittance, the red signal light is transmitted with a low transmittance, and the yellow signal light is transmitted with a medium transmittance. lens (
The optical signal is converted into an electrical signal in the photodiode CA+ of fang 1 placed at the focal point of 2z. Since the photodiode (to) of Fang 1 receives an electrical signal proportional to the intensity of light, the color signal light is the largest, followed by the yellow signal light and then the red signal light. . Fang 1
The electrical signal received by the photodiode (24) is input to the amplifier 1 (J□□□).

The 1.1 IpM amplifier □□□) is an amplifier whose amplification degree can be controlled by an external electric signal, and the output signal of the 1st photodiode (241) is widened with an appropriate magnification and is passed through the waveform shaping circuit (241). ). Amplification 2g of spear 1 (
E) The output signal is a 31-digit signal that changes in three states: a blue light signal, a yellow light signal, and a red light signal, but it changes in two states, a blue light signal and a red light signal, in the waveform shaping circuit (2). The waveform is shaped to become a binary signal, and one is sent to the delay circuit 3.
Automatically turns off after a predetermined time delay due to trouble.
The other is after receiving a predetermined time delay in delay circuit 3 and delay circuit 2 +17), eye movement switching +i,i (32
) is entered. The delay time of delay circuit 3 (branch) is]
・Similar to the case in Figure 1, the most effective time for traffic congestion (the delay time of the two-pronged delay circuit 20'D is set as the time required for a two-way ticket stop (red light in both directions).

10,000, the signal light from the main signal Jitl+ is focused by the lens of the spear 2), and the photodiode of the spear 2 is placed at the focus of the lens of the autopsy. is converted to Since there is no optical filter here, none of the d signal light, yellow m signal light, or red signal light is weakened. Therefore, the electrical signal of the photodiode of spear 2) is the main signal (11), and the color of the signal light is the distance of the power ((the relationship is constant, the main signal aQil+ and the lens of tooth 2), the distance 1·adic, the direction Changes (Jvl
Makoto) The output power Zi4+ is manually applied to the amplifier example of 2. In the enlargement IIVA device (c) of spear 2.

1iil14I[l
An output No. 1a is produced to calculate the gain if+lJ of the amplifier (support) of the fan and is input into the upper terminal calibrator. The gain of the amplifier ■ is the amplification i5 of the gain 2.
By being controlled by the output of the amplifier C2fJ), the amplification of the stepped output of the amplifier C2fJ) of A1 always obtains a constant value even if the intensity of the signal or light entering the optical filter t2t+ changes. The output signal of the amplifier (2) is compared with the output of the reference pressure circuit (30) in the comparison attribute), and the output signal of the amplifier (2) becomes less than the output voltage of the reference voltage circuit (a). When it decreases, a switching signal is output from the comparator (□□□) and input to the switching control circuit (31). In the switching control circuit (31), the signal is amplified (or attenuated) to a signal level necessary to drive the automatic switching machine G.

Delay circuit 3 (branch) at automatic switching 131 +321)
The signals from the delay circuit 20 and the signals from the timer (2) and the delay circuit 1 (16) are switched by the control circuit C31).
Automatically switched depending on the output. In other words, if the intensity of the signal light entering the optical filter Qυ and the lens of spear 2 decreases below a predetermined value, the signal light 1 (101 and signal light 2a3; which was synchronized with the main signal (1)) will automatically switch off. It begins to blink according to the signal from timer (2).

After the relay drive circuit ((6) and (7)), signal light 1
(Ill and signal light 2 (131) are operated in the same manner as explained in Figure 1.1.

In the above explanation, the optical filter (21j) was used to differentiate the color of the signal light by differentiating the transmittance of the fT color signal light, yellow signal light, and red signal light, but a photodiode with the same function By using the photodiode (24) in Fang 1, it can be operated without an optical filter ulJ. In this case, the lens (support) in A1 and the lens regions in 1 and 2 can be used in common. to focus the lens (=
A photodiode example and a photodiode) may also be placed. Also, a paraboloid or the like may be used instead of the lens Q2) or the lens □□□). Automatic switching machine +32] and signal light 1 (101, signal light 2031) The relay for blinking may be a transistor, thyristor, etc. instead of a relay.The timer (2) may be a mechanical timer, etc. instead of an electronic timer. For the delay circuit 1116+, delay circuit 2 (171) and delay circuit 3 C7IJl, a mechanical timer, delay line, etc. may be used instead of the electronic timer. )) may be replaced with a phototransistor, a solar cell, or other light-receiving element. In addition, although a light filter t2D + Ta] was used, a red light transmission filter was used for signal light 1.
The red signal light (02) and the signal light 203) may be controlled.

As described above, according to the present invention, the main signal (
By synchronizing 1) with the signal light (curve) and +t3+), it is possible to eliminate the branching from the main unit 13 when using the width line, and the bracken work (distribution), making it easy and -w fog. Under normal weather conditions, the 1g light can be accurately synchronized with the main signal.

[Brief explanation of drawings]

111M is a block diagram of a conventional signal control device, FIG. 2 is a time course diagram of a signal lamp blinking state, and FIG. 3 is a block diagram of this invention device. In the figure, (1) is the main 1 word i, f2+ is the timer, and (3) is the switching device. (4) and (5) are the contacts of the switching machine, (6) and (7)
) is a relay drive circuit, (8) and (9) are relays, U
υ) and (131 is a signal light, '(111 and round are green signal lights, u2) and (151 is a red light 16, tl
ol, (Iη and example are delay circuits, (formerly used for relays), (1!l) is power supply for signal lights, c!1
) is an M color transmitted light filter, @ and (23) are lenses,
The photodiode is a photodiode (4).
'+blJ? 1) is an amplifier with a terminal, zn is a waveform shaping circuit, 2 examples are gain control amplifiers, and 9) is a comparator. +30+ is the reference voltage circuit, +311 is the switching 1lIII
Government amplifier, (+a is an automatic switching device. Identical or corresponding parts in Figure 2 are indicated with the same reference numerals. Agent: Shin Kuzuno -

Claims (1)

[Scope of Claims] (1) A control device for traffic control signal lights used by the Ministry of Road Works. 1. Concentrator 2. 1. Photodiode, etc. that converts the optical signal into an electrical signal.
・A receiver of spear 1 that can distinguish the color of an optical signal consisting of a light receiving element 1, and a receiver of this spear 1 that amplifies the received signal 4 to a signal level that allows waveform shaping, and the strength of light 16 4) An amplifier with a control function capable of keeping the output constant even if the output changes. 〃, ya, red signal 3rd shift reception No. 4 with my back, red signal 2nd
A waveform shaping circuit that shapes the waveform into a value signal. The color of the optical signal is determined by the concentrator of fang 2, such as a lens that focuses the optical signal from the main signal, and the light receiving element of fang 2, such as a fort diode that converts the collected optical signal into an electrical signal. The receiver of spear 2, which has no selectivity, &, the amplifier of spear 2, which amplifies the reception number 4 of the receiver of j. a comparator that outputs a switching signal when the output level of the amplifier becomes lower than a reference voltage, a reference voltage circuit that generates a reference voltage, and an l that amplifies the output from the comparator to a predetermined signal level. , an IJ switching control circuit, and an automatic switching device that automatically switches the signal from the waveform shaping circuit and the signal from the timer using the switching control circuit output signal. Upper dpi main signal 1: If the strength of the signal light from the tow exceeds a predetermined value, the father control signal light is synchronized with the main signal light 1ljlJ Ml+ L, and the signal light from the main signal light is A signal control device characterized in that it controls the 2-kichi 3J31 control signal light so that it can be operated by the above-mentioned timer if the strength becomes less than a predetermined value. , the signal control device according to claim 11, characterized in that one or both of the light receiving elements of the receiver of the fang 1 (= selectivity with respect to the color of the optical signal). The signal control device according to claim 4 (1), characterized in that an optical filter selective to the color of the optical signal is added to the receiver. Claim λ characterized in that the condenser of 1 and 1 receivers is shared as a phosphor.
・(Article 11 11 Thief's signal 'djU control device.