KR200198109Y1 - Power supply device for pedestrian lights to indicate the walking time - Google Patents

Abstract

The present invention relates to a power supply of a walking signal light remaining time indicator, in particular, the red and green signal input unit (1) driven by the AC voltage supplied through the red and green light power supply lines (R, COM, G); First and second power supply units 9 and 10 for rectifying a high AC voltage into different low DC voltages and supplying them to the main control unit 6 and the light emitting diode module unit 7; A main control unit 6 which receives the output signal of the red and green signal input unit 1 and outputs a light emitting diode driving signal to the light emitting diode module unit 7 for displaying the remaining time when the green light is turned on; In the power supply device of the remaining time indicator of the pedestrian traffic light composed of the light emitting diode module unit 7 displaying the remaining time in response to the control signal output from the main control unit 6, the red and green light power supply line (R) And only the green light power supply lines COM and G are connected to the input terminals of the first and second power supply units 9 and 10, and the main control unit 6 and only during the time when the green light is turned on. By driving the light emitting diode module 7, the production cost of the traffic signal itself can be reduced by drastically reducing the number of components, and the installation cost of the traffic signal can be greatly reduced. The service life of various components can be greatly extended, and power consumption, including maintenance, maintenance, and maintenance costs of traffic signals, can be greatly reduced.

Description

Power supply device for pedestrian lights to indicate the walking time}

The present invention relates to a power supply device for the remaining time indicator of a pedestrian traffic light, and more particularly, to reduce the number of parts by driving the remaining time display part for pedestrians to cross a pedestrian crossing using AC voltage supplied only when the green signal light is turned on. This can not only drastically reduce the production cost of traffic signals, but also greatly reduce the cost of facilities, and greatly extend the lifespan of various components constituting the remaining time indicator such as walking signals. It is designed to drastically reduce the cost of management.

As shown in FIG. 1, the power supply device of the conventional walking signal remaining time indicator includes three red and green light power supply lines R, COM, and G supplied to the red and green signal input units 1, respectively. The first and second rectifiers (2 and 3) are connected to the input terminals of the two power transformers (2 and 3), and the output terminals of the two power transformers (2 and 3) represent different rectified voltages (for example, DC voltages of 5 V and 50 V). 4 and 5 are connected to the main control unit 6 and the light emitting diode module unit 7 of the remaining time indicator of the pedestrian traffic light, and the output signal of the red and green signal input unit 1 is input to drive the light emitting diode. The output terminal of the controlling main control unit 6 is connected to the control input terminal of the light emitting diode module unit 7. The light emitting diode module unit 7 is composed of an RC city or a backup battery, and is normally charged. In the main control unit 6 The light emitting diode driving voltage supply unit 8 which generates a signal and supplies a driving voltage to the light emitting diode is provided.

However, in such a configuration, since the light emitting diode module unit 7 which directly displays the remaining time is configured to be driven by the light emitting diode driving voltage supply unit 8 constituted by the RC municipality or the backup battery, the green light of the pedestrian traffic light is turned on. The AC voltage output from the red light power supply lines R and COM to charge the light emitting diode driving voltage supply unit 8 even when the red light is turned on. And 3).

Therefore, the number of components for displaying the remaining time for pedestrians to cross the crosswalk is high, which not only increases the production cost of traffic signals, but also increases the number of power lines, etc. Each part deteriorates due to the power supply voltage supplied to various components constituting the pedestrian traffic light remaining time indicator even during normal times (i.e., when the red light is turned on) that are not related to the remaining time display. Not only shorten the life itself, but also resulting in a lot of maintenance costs, etc.

In addition, the input power range shows a big difference according to the place where the signal lamp is installed, which causes a problem that an unstable element is generated to operate the system.

The present invention was devised to solve such a conventional problem, and is driven using an AC power supply voltage that is supplied only when a green signal lamp is turned on to display a light emitting diode module unit displaying a remaining time for a pedestrian to cross the crosswalk. It can reduce the production cost of traffic signal by reducing the number of components, and can greatly reduce the cost of facilities, and can greatly extend the life of various components that make up the remaining time indicator such as pedestrian traffic lights. In addition, the object of the present invention is to provide a power supply device for the remaining time indicator of a pedestrian traffic light that can significantly reduce the cost of maintenance, maintenance and management of traffic signals.

The object of the present invention is a red and green signal input unit which is driven by the AC voltage supplied through the red and green light power supply line to output the red and green light driving signal to the main control unit; First and second power supply units (SMPS) for rectifying the input high AC voltage into different low DC voltages and supplying them to the main control unit and the light emitting diode module unit; A main control unit which receives the output signal of the red and green signal input unit and outputs a light emitting diode driving signal to the light emitting diode module unit to display the remaining time when the green light is turned on; A power supply device for a walking signal light remaining time indicator including a light emitting diode module unit configured to display a remaining time in response to a control signal output from the main control unit, wherein only the green light power supply line of the red and green light power supply lines is provided. And the main control unit and the light emitting diode module unit are driven only during the lighting time of the green light by being connected to the input terminal of the second power supply unit so that the remaining time is displayed.

Therefore, the number of components constituting the remaining time indicator of the pedestrian traffic light can be greatly reduced, which not only can significantly reduce the production cost of the traffic signal itself, but also greatly reduce the installation cost of the traffic signal, and also light up the red light. In the city, it is possible to cut off the operation of the main control unit and the light emitting diode module unit that control the remaining time indicator such as pedestrian traffic lights, which can greatly prolong the lifespan of various components constituting them, as well as maintenance, maintenance and maintenance costs. It is possible to drastically reduce power consumption.

In addition, the range of input power varies greatly depending on the place where the traffic light is installed so that the unstable operation of the system can be solved by applying the concept of pre-volt to the variable range of input power.

1 is a power supply circuit diagram of a conventional pedestrian traffic light remaining time indicator.

Figure 2 is a block diagram of the device of the present invention.

※ Explanation of code for main part of drawing ※

1: Red and green signal input

6: main control unit

7: light emitting diode module

9, 10: first and second power supply

R, COM, G: Red and Green Power Supply Line

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 shows a block diagram of the device of the present invention.

According to this, the red and green signal input unit 1 driven by the AC voltage supplied through the red and green lamp power supply lines R, COM, and G outputs the red and green lamp driving signals to the main controller 6. )Wow; First and second power supply units 9 and 10 for rectifying a high AC voltage into different low DC voltages and supplying them to the main control unit 6 and the light emitting diode module unit 7; A main control unit 6 which receives the output signal of the red and green signal input unit 1 and outputs a light emitting diode driving signal to the light emitting diode module unit 7 for displaying the remaining time when the green light is turned on; In the power supply of the remaining time indicator of the walking signal lamp composed of a light emitting diode module unit 7 for displaying the remaining time in response to the control signal output from the main control unit 6,

Of the red and green light power supply line (R, COM, G), only the green light power supply line (COM, G) is connected to the input terminal of the first and second power supply (9,10) during the time that the green light is turned on Only the main control unit 6 and the light emitting diode module unit 7 are driven by DC voltages supplied from the first and second power supply units 9 and 10, respectively.

In this case, since the main control 6 is driven by a relatively low DC voltage (for example, 5V), the first power supply 9 usually includes a constant voltage circuit.

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

First, the main technical configuration of the present invention is the three red and green light power supply lines (R, COM, connected to the input terminal of the red and green signal input unit 1 for outputting the red and green light driving signals to the main control unit 6). G) only the green light power supply line (COM, G) is connected to the input terminals of the first and second power supply (9, 10).

As such, when only the green light power supply lines COM and G of the red and green light power supply lines R, COM and G are connected to the input terminals of the first and second power supply units 9 and 10, the green light is turned on. During the period of time, the high AC voltage input from the first and second power supply units 9 and 10 is rectified to different DC voltages, that is, 5V and 50V, so that the main controller 6 and the light emitting diode module 7 To be supplied.

Therefore, the main control unit 6 receives the output signal of the red and green signal input unit 1 (that is, the green light on signal) only while the green light is on, and displays the remaining time when the green light is on. Since the predetermined control signal is output to the light emitting diode module unit 7, the main control unit 6 in the light emitting diode module unit 7 which receives a power voltage from the second power supply unit 10 only during this time. Remaining time is displayed in response to the control signal output from).

As such, when the main control unit 6 and the light emitting diode module unit 7 are driven only by the green light driving voltage, the light emitting diode driving voltage supply unit can be eliminated. The number of component parts can be drastically reduced, so that the production cost of the traffic signal itself can be greatly reduced, and when the traffic signal is installed, the red light power supply lines (R, COM) are connected to the first and second power supply units 9, Installation work can be greatly reduced as there is no need to connect to the input terminal of 10).

In addition, when the red light is turned on, driving of the main control unit 6 and the light emitting diode module unit 7 which control the remaining time indicator of the pedestrian traffic light can be cut off, thereby preventing deterioration of various components constituting the same. As a result, the lifespan of each part can be greatly extended, and the cost of maintenance, repair, power consumption and management can be greatly reduced.

As described above, according to the present invention, only the green light power supply line of the red and green light power supply lines connected to the green and red signal input units is connected to the input terminals of the two power supply units (SMPS), so that the main control unit only during the lighting time of the green light. And by driving the LED module to display the remaining time, the number of parts constituting the remaining time indicator such as pedestrian traffic lights can be greatly reduced, which not only lowers the production cost of the traffic signal itself, but also the cost of installing the traffic signal. Can be greatly reduced, and when the red light is turned on, the main control unit for controlling the remaining time indicator of the pedestrian traffic light and the light emitting diode module unit can be cut off, thereby greatly extending the life of the various components constituting them. In addition, the concept of free volt can be used for variable range of input power. The range of input power varies greatly depending on the location where the traffic light is installed, which solves the problem of unstable factors in system operation, and can greatly reduce power consumption including maintenance, maintenance, and maintenance costs of traffic signals. It is a very useful design.

Claims (1)

A red and green signal input unit 1 driven by an AC voltage supplied through the red and green lamp power supply lines R, COM, and G to output the red and green lamp driving signals to the main controller 6; First and second power supply units 9 and 10 for rectifying a high AC voltage into different low DC voltages and supplying them to the main control unit 6 and the light emitting diode module unit 7; A main control unit 6 which receives the output signal of the red and green signal input unit 1 and outputs a light emitting diode driving signal to the light emitting diode module unit 7 for displaying the remaining time when the green light is turned on; In the power supply of the remaining time indicator of the walking signal lamp composed of a light emitting diode module unit 7 for displaying the remaining time in response to the control signal output from the main control unit 6, Of the red and green light power supply line (R, COM, G), only the green light power supply line (COM, G) is connected to the input terminal of the first and second power supply (9,10) during the time that the green light is turned on Only the main controller 6 and the light emitting diode module 7 are driven by DC voltage supplied from the first and second power supply units 9 and 10, respectively. Power supply.