KR20090025463A - Traffic signal controller including a subsidiary electric power source - Google Patents

Traffic signal controller including a subsidiary electric power source Download PDF

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Publication number
KR20090025463A
KR20090025463A KR1020070090337A KR20070090337A KR20090025463A KR 20090025463 A KR20090025463 A KR 20090025463A KR 1020070090337 A KR1020070090337 A KR 1020070090337A KR 20070090337 A KR20070090337 A KR 20070090337A KR 20090025463 A KR20090025463 A KR 20090025463A
Authority
KR
South Korea
Prior art keywords
power
traffic signal
auxiliary
signal controller
external
Prior art date
Application number
KR1020070090337A
Other languages
Korean (ko)
Inventor
신교순
Original Assignee
유병무
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 유병무 filed Critical 유병무
Priority to KR1020070090337A priority Critical patent/KR20090025463A/en
Publication of KR20090025463A publication Critical patent/KR20090025463A/en

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems

Abstract

The present invention relates to a traffic signal controller having an auxiliary power supply, comprising: an external power input unit configured to receive external power and deliver the same to an internal power line; An auxiliary power supply unit configured to charge the external power delivered through the power line, and generate auxiliary power from the charged power to supply to the power line when a power failure occurs; And a driving power generator configured to generate driving power using the external power or the auxiliary power applied through the power line. And a traffic signal controller configured to control the traffic signal using the driving power, thereby stably controlling the traffic signal regardless of whether a power failure occurs.

Description

Traffic signal controller including a subsidiary electric power source

The present invention relates to a traffic signal controller which is installed at an intersection or a crosswalk to control the progress of a vehicle or a pedestrian, and more particularly, has an auxiliary power supply device capable of continuing its operation even in the event of a power failure of the traffic signal controller. It relates to a traffic signal controller.

In general, the traffic signal controller is installed at the intersection or crossings to perform the function of properly controlling the progress of vehicles and pedestrians. This ensures the safety of pedestrians and drivers and ensures smooth traffic.

If such a traffic signal controller stops operation even for a moment due to a power failure, the vehicle flow in the area where the traffic signal controller is installed will immediately cause great confusion.

Therefore, such a traffic signal controller has a device characteristic that should always be operated stably in any case.

However, since a conventional traffic signal controller is provided with its driving power directly from an electric line powered by a power supply station, when the electric line is damaged by an external environment, that is, when a power failure occurs, it can no longer operate. There is a problem that becomes impossible.

1 is a view showing the configuration of a traffic signal controller according to the prior art.

As shown in FIG. 1, a conventional traffic signal controller includes an external power input unit 11, an earth leakage breaker 12, a wiring breaker 13, a driving power generator 14, and a traffic signal controller 15. Equipped.

Hereinafter, the function of each component will be described.

The external power input unit 11 is connected to an electric line to which an external power source in which a power supply is generated is supplied, and transfers external power supplied through the electric line to a power line in the traffic signal controller.

The external power source at this time is an AC power source having a voltage of 220V and a frequency of 60Hz.

The ground fault blocking unit 12 detects the occurrence of power overload, disconnection, and ground fault in the traffic signal controller, and trips the power line.

The wiring breaker 13 protects the circuit in the traffic signal control by tripping the power supply line when an abnormal phenomenon such as an overload or a short in the traffic signal controller occurs.

The driving power generation unit 14 generates driving power of the traffic signal control unit 25 by using external power supplied from an external electric line.

At this time, the driving power is a DC power that is a form of power that can be recognized and used by the traffic signal controller 25.

The traffic signal controller 1 is activated by receiving the driving power generated through the driving power generator 14 and controls the traffic signal according to a pre-programmed time and sequence.

As such, the conventional traffic signal controller generates its own driving power in real time from power supplied from an external power supply station and controls the traffic signal using the same.

Thus, if a power failure occurs and the power is not normally supplied from the outside, the driving power may no longer be generated, and as a result, a fatal problem may occur.

Although the traffic signal controller has a device characteristic of maintaining the operating state at all times without being influenced by the external environment, the conventional traffic signal controller does not normally receive power from the outside, that is, a power failure state occurs. When you had a fatal problem to stop their motion.

As a means for solving the above problems, according to an aspect of the present invention, the external power input unit for receiving the external power to pass to the internal power line; An auxiliary power supply unit configured to charge the external power delivered through the power line, and generate auxiliary power from the charged power to supply to the power line when a power failure occurs; And a driving power generator configured to generate driving power using the external power or the auxiliary power applied through the power line. And a traffic signal controller configured to control a traffic signal using the driving power.

The auxiliary power supply may include a constant voltage converter configured to convert the external power transferred through the power line into a constant voltage. A charging unit for charging the converted constant voltage; An auxiliary power supply controller for generating a control signal when the converted constant voltage is not generated; And an auxiliary power generator for generating an auxiliary power from the voltage charged in the charging unit and supplying the auxiliary power to the power line when the control signal is generated.

The auxiliary power supply control unit may include: a power failure detection unit confirming that a power failure situation occurs when the converted constant voltage does not occur; And a switching unit for switching the operation state of the auxiliary power supply control unit by applying the control signal to the auxiliary power generation unit when the power failure state has occurred.

And the charging unit is characterized in that it comprises a plurality of parallel connected lithium cells.

In this case, the traffic signal controller may be further connected to the electric line, and may further include an earth leakage circuit breaker for detecting power overload, disconnection, and short circuit in the traffic signal controller to trip the power line.

The circuit breaker may further include a wire breaker connected to the electric line to detect an overload and a short in the traffic signal controller and to trip the power line.

As a means for solving the above problems, according to another aspect of the present invention, monitoring the supply of external power; Charging the external power; When the external power is supplied, generating driving power from the external power; otherwise, generating the driving power from the charged external power; And it provides a method of operating a traffic signal controller having an auxiliary power supply characterized in that it comprises the step of controlling the traffic signal using the drive power.

The generating of the driving power at this time may include generating a constant voltage from the external power; Charging the constant voltage; Generating the driving power from the external power after confirming that the external power is supplied when the power pressure is generated; And after confirming that the external power is not supplied, generating the auxiliary power from the charged constant voltage and generating the driving power from the auxiliary power, if the power supply pressure does not occur. .

As described above, the traffic signal controller including the auxiliary power supply of the present invention can stably control the traffic signal regardless of whether a power failure occurs, thereby increasing the operation reliability of the device.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

2 is a diagram illustrating a configuration of a traffic signal controller according to a preferred embodiment of the present invention.

As shown in FIG. 2, the traffic signal controller includes an external power input unit 21, an earth leakage breaker 22, a wiring breaker 23, a driving power generator 24, and a traffic signal controller 25. Auxiliary power supply 26 is further provided.

Hereinafter, the function of each component will be described.

The external power input unit 21 is connected to an electric line to which an external power source in which a power supply is generated is supplied, and transfers external power supplied through the electric line to a power line in the traffic signal controller.

The external power source at this time is an AC power source having a voltage of 220V and a frequency of 60Hz.

The ground fault interrupter 22 detects the occurrence of power overload, disconnection, and ground fault in the traffic signal controller, and trips the power line.

The wiring breaker 23 protects the circuit in the traffic signal control by tripping the power line when an abnormal phenomenon such as an overload or a short in the traffic signal controller occurs.

The driving power generation unit 24 generates driving power of the traffic signal control unit 25 using external power when external power is normally supplied from an external electric line, and when external power is not supplied from an external electric line. That is, in the event of a power failure, the driving power is generated from the auxiliary power supplied by the auxiliary power supply 26 described below.

That is, the driving power generator 24 of the present invention generates the driving power stably regardless of whether a power failure occurs so that the traffic signal controller can always operate stably.

At this time, the driving power is a DC power that is a form of power that can be recognized and used by the traffic signal controller 25.

The traffic signal controller 25 is activated by receiving the driving power generated through the driving power generator 24 to control the traffic signal according to a pre-programmed time and sequence. To control.

The auxiliary power supply unit 26 is connected to a power line between the external power input unit 21 and the ground fault interrupter 22 to charge external power supplied through the power line. If an external power is not applied through the power line due to a power failure, the controller detects this and generates an auxiliary power from the immediately charged AC power and applies it to the power line.

In other words, when a power failure occurs, an auxiliary power supply for replacing an external power source is immediately generated and supplied.

3 is a diagram illustrating a detailed configuration of an auxiliary power supply unit according to a preferred embodiment of the present invention.

Referring to FIG. 3, the auxiliary power supply unit 26 includes a constant voltage converting unit 31, a charging unit 32, a power failure detecting unit 33, a switching unit 34, and an auxiliary power generating unit 35.

Hereinafter, the function of each component will be described.

The constant voltage converting unit 31 is connected to a power line between the external power input unit 21 and the ground fault interrupting unit 22 to convert external power supplied through the power line into a constant voltage.

The charging unit 32 charges the constant voltage converted by the constant voltage converter 31.

Preferably, the charging unit 32 is implemented by a plurality of parallel connected lithium cells, so as to charge a larger amount of external power.

The power failure detection unit 33 detects an operation state of the constant voltage conversion unit 31, and when the constant voltage conversion unit 31 does not generate a constant voltage, it detects that a power failure has occurred, and the auxiliary power supply unit 26 immediately Command to supply auxiliary AC power to the power line in the traffic signal controller.

The switching unit 34 generates a control signal for activating the operation of the auxiliary power generator 35 under the control of the power failure detecting unit 33.

The auxiliary power generator 35 generates auxiliary power from a voltage charged in the charging unit 32 in response to a control signal applied from the switching unit 34, and then supplies the generated auxiliary power to the earth leakage breaker 22. To the line.

4 is a flowchart illustrating an operation method of a traffic signal controller according to an exemplary embodiment of the present invention.

The power failure detecting unit 33 of the auxiliary power supply unit 26 continuously monitors whether the constant voltage converting unit 31 normally generates a constant voltage, and detects whether a power failure occurs (S1).

If, as a result of the detection of step S1, the constant voltage converting unit 31 is normally generated at a constant voltage, it is confirmed that the external power is normally supplied to the traffic signal controller, and the driving power generating unit 24 generates an external electric line. The driving power is generated using the external power supplied through S2. The traffic signal controller 25 performs an operation by using the same, and controls the traffic signal according to a programmed time and sequence.

At the same time, the charging unit 32 of the auxiliary power supply unit 26 charges the constant voltage converted by the constant voltage conversion unit 31 to prepare for a power failure situation (S3).

On the other hand, if the constant voltage converter 31 does not generate a constant voltage as a result of the detection of step S1, the power failure detector 33 confirms that a power failure has occurred and commands the supply of auxiliary power through the switch 34. The auxiliary power generator 35 generates the auxiliary power from the voltage charged through the step S3 (S4).

Accordingly, the driving power generator 24 stably generates the driving power of the traffic signal controller by using the auxiliary power even when the power failure occurs, so that the traffic signal controller can maintain the operating state. .

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

1 is a view showing the configuration of a traffic signal controller according to the prior art.

2 is a diagram illustrating a configuration of a traffic signal controller according to a preferred embodiment of the present invention.

3 is a diagram illustrating a detailed configuration of an auxiliary power supply unit according to a preferred embodiment of the present invention.

4 is a flowchart illustrating an operation method of a traffic signal controller according to an exemplary embodiment of the present invention.

Claims (8)

An external power input unit configured to receive external power and deliver the external power to an internal power line; An auxiliary power supply unit configured to charge the external power delivered through the power line, and generate auxiliary power from the charged power to supply to the power line when a power failure occurs; A driving power generator for generating driving power using the external power or the auxiliary power applied through the power line; And And a traffic signal controller configured to control a traffic signal by using the driving power. The method of claim 1, wherein the auxiliary power supply unit A constant voltage converter configured to convert the external power transferred through the power line into a constant voltage; A charging unit for charging the converted constant voltage; An auxiliary power supply controller for generating a control signal when the converted constant voltage is not generated; And When the control signal is generated, the traffic signal controller including an auxiliary power supply comprising a secondary power generation unit for generating an auxiliary power from the voltage charged in the charging unit to supply to the power line. The method of claim 2, wherein the auxiliary power supply control unit If the converted constant voltage does not occur, the power failure detection unit for confirming that a power failure situation has occurred; And And a switching unit for switching the operation state of the auxiliary power supply control unit by applying the control signal to the auxiliary power generation unit when the power failure state has occurred. The traffic signal controller of claim 2, wherein the charging unit includes an auxiliary power supply including a plurality of parallel connected lithium cells. The method of claim 1, And an earth leakage circuit breaker connected to the electric line and detecting an electric power overload, disconnection and a short circuit in the traffic signal controller, and tripping the power line. The method of claim 1, And a wire breaker connected to the electric line and detecting whether an overload and a short are generated in the traffic signal controller, and tripping the power line. Monitoring whether external power is supplied; Charging the external power; When the external power is supplied, generating driving power from the external power; otherwise, generating the driving power from the charged external power; And And controlling a traffic signal by using the driving power. The method of claim 7, wherein generating the driving power source Generating a constant voltage from the external power source; Charging the constant voltage; Generating the driving power from the external power after confirming that the external power is supplied when the power pressure is generated; And If the power supply pressure does not occur, after confirming that the external power is not supplied, the auxiliary power supply comprising generating an auxiliary power from the charged constant voltage, and generating the driving power from the auxiliary power supply Method of operation of a traffic signal controller.
KR1020070090337A 2007-09-06 2007-09-06 Traffic signal controller including a subsidiary electric power source KR20090025463A (en)

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KR1020070090337A KR20090025463A (en) 2007-09-06 2007-09-06 Traffic signal controller including a subsidiary electric power source

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Application Number Priority Date Filing Date Title
KR1020070090337A KR20090025463A (en) 2007-09-06 2007-09-06 Traffic signal controller including a subsidiary electric power source

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101217777B1 (en) * 2012-09-25 2013-01-02 대한신호 주식회사 Switching device for replacement power
KR101284576B1 (en) * 2012-04-03 2013-07-11 도로교통공단 Uninterruptible power supply for traffic device
KR101287074B1 (en) * 2012-04-03 2013-07-17 도로교통공단 Uninterruptible power supply for traffic device
USD775600S1 (en) 2014-10-01 2017-01-03 Samsung Electronics Co., Ltd. Portable electronic device
USD779450S1 (en) 2014-10-01 2017-02-21 Samsung Electronics Co., Ltd. Portable electronic device
USD781275S1 (en) 2014-10-01 2017-03-14 Samsung Electronics Co., Ltd. Portable electronic device
USD784972S1 (en) 2014-10-01 2017-04-25 Samsung Electronics Co., Ltd. Portable electronic device
USD785586S1 (en) 2014-10-01 2017-05-02 Samsung Electronics Co., Ltd. Portable electronic device
USD795855S1 (en) 2014-10-01 2017-08-29 Samsung Electronics Co., Ltd. Portable electronic device
USD797713S1 (en) 2014-10-01 2017-09-19 Samsung Electronics Co., Ltd. Portable electronic device
USD803818S1 (en) 2014-10-01 2017-11-28 Samsung Electronics Co., Ltd. Portable electronic device

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101284576B1 (en) * 2012-04-03 2013-07-11 도로교통공단 Uninterruptible power supply for traffic device
KR101287074B1 (en) * 2012-04-03 2013-07-17 도로교통공단 Uninterruptible power supply for traffic device
KR101217777B1 (en) * 2012-09-25 2013-01-02 대한신호 주식회사 Switching device for replacement power
USD779469S1 (en) 2014-10-01 2017-02-21 Samsung Electronics Co., Ltd. Portable electronic device
USD781275S1 (en) 2014-10-01 2017-03-14 Samsung Electronics Co., Ltd. Portable electronic device
USD776073S1 (en) 2014-10-01 2017-01-10 Samsung Electronics Co., Ltd. Portable electronic device
USD777130S1 (en) 2014-10-01 2017-01-24 Samsung Electronics Co., Ltd. Portable electronic device
USD777698S1 (en) 2014-10-01 2017-01-31 Samsung Electronics Co., Ltd. Portable electronic device
USD778869S1 (en) 2014-10-01 2017-02-14 Samsung Electronics Co., Ltd. Portable electronic device
USD778890S1 (en) 2014-10-01 2017-02-14 Samsung Electronics Co., Ltd. Portable electronic device
USD775600S1 (en) 2014-10-01 2017-01-03 Samsung Electronics Co., Ltd. Portable electronic device
USD779450S1 (en) 2014-10-01 2017-02-21 Samsung Electronics Co., Ltd. Portable electronic device
USD776075S1 (en) 2014-10-01 2017-01-10 Samsung Electronics Co., Ltd. Portable electronic device
USD784972S1 (en) 2014-10-01 2017-04-25 Samsung Electronics Co., Ltd. Portable electronic device
USD784974S1 (en) 2014-10-01 2017-04-25 Samsung Electronics Co., Ltd. Portable electronic device
USD785586S1 (en) 2014-10-01 2017-05-02 Samsung Electronics Co., Ltd. Portable electronic device
USD788752S1 (en) 2014-10-01 2017-06-06 Samsung Electronics Co., Ltd. Portable electronic device
USD795855S1 (en) 2014-10-01 2017-08-29 Samsung Electronics Co., Ltd. Portable electronic device
USD797713S1 (en) 2014-10-01 2017-09-19 Samsung Electronics Co., Ltd. Portable electronic device
USD803818S1 (en) 2014-10-01 2017-11-28 Samsung Electronics Co., Ltd. Portable electronic device

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