KR20080023628A - Control device of street lighting running in commercial voltage and safe voltage - Google Patents

Abstract

A control device of a streetlight pole running in a commercial voltage and a safe voltage is provided to prevent an electric shock by watching damage of a railway due to an electric leakage or roadwork in real time. A control device of a streetlight pole running in a commercial voltage and a safe voltage includes a CT(Current Transformer) unit, a ZCT(Zero-phase Current Transformer) unit(470), a communication sensing microcomputer unit(415), a streetlight control command processing microcomputer unit(420), and a self-repairing microcomputer unit(430). The CT unit senses a used current value of each streetlight pole. The ZCT unit senses a leaked current value of each streetlight pole. The street lighting control command processing microcomputer unit and the communication sensing microcomputer unit always sense operation states of the streetlight pole and a communication module. The self-repairing microcomputer unit senses operation states of the modems again. The control device of the street light pole transmits data to a distribution box through a communication module unit(410), the communication sensing microcomputer unit, and the streetlight pole control command processing microcomputer unit.

Description

Control device of street lighting running in commercial voltage and safe voltage

The present invention relates to a street lamp control device for controlling the lighting of the street lamp.

The existing streetlight main control device is a device that can not use the commercial voltage and safety voltage at the same time in the streetlight main control device.

In addition, in some inventions that allow the use of the safety voltage, a separate control method is used, in which the power supply device for commercial power supply and the safety voltage power supply device are used separately, and the two power supply circuits are switched and used when necessary, so as to control the whole. There was a disadvantage that the price of the device increased and the size of the power supply doubled.

However, the present invention differs from the existing invention in that only one power supply device is used for each street lamp, and a commercial power supply and a safety voltage are implemented using an electronic circuit, and there is a difference in the overall device configuration. have.

The present invention relates to a conventional street light control device, street lamp control device, and system, in a distribution box controller (or distribution box control device), applying a commercial voltage to the line and turning on the magnetic switch (ON), or turn on the magnetic The switch has been turned off and turned off, and most of the devices cannot use the commercial voltage and safety voltage at the same time.

In addition, in some inventions that allow the use of the safety voltage, a separate control method is used, in which the power supply device for commercial power supply and the safety voltage power supply device are used separately, and the two power supply circuits are switched and used when necessary, so as to control the whole. There was a disadvantage that the price of the device increased and the size of the power supply doubled.

In the invention of a street light disconnection detection and driving system using a safety voltage (Registration No .: 10-0491889), a commercial voltage (or voltage) is generated in a controller by using a method of generating a flashing light signal according to a value set in a controller or an externally applied signal. AC 110 ~ 220V) and safety voltage directly to the terminal,

To this end, the controller transmits a command to the terminal from the commercial voltage to the safe voltage mode by using the controller transceiver to apply a safe voltage.

On the contrary, the commercial voltage is applied from the controller to the terminal after the mode conversion command is transmitted from the safe voltage to the commercial voltage.

However, this method does not transmit the mode conversion command due to the poor environment of operating the street lamp control device and various communication conditions such as a line defect or noise when the mode conversion command is transmitted from the controller to the terminal. In the case of vice versa, if a mode change command is incorrectly transmitted (malfunction) in communication due to various noises, and the operation state of the controller is changed from the safe voltage application mode to the commercial voltage mode, there is a risk of a larger accident on the terminal side. There is a disadvantage.

In other words, the conventional method requires only one hundred percent (100%) of the communication state to correctly apply the safety voltage and the commercial voltage. Therefore, when the communication is unstable, the safety voltage and the commercial voltage applicator become unstable.

However, in the safe voltage mode, the present invention applies a safety voltage and operates all the devices while the magnetic switch on the distribution box controller side is turned off. When the commercial voltage is applied, the safety voltage switch is switched off. The use of reverse contact does not cause two power supplies to a line or other device at the same time.

In addition, the street lamp main control device has an electronic circuit in each street lamp main control device to implement a single power supply to operate at a commercial voltage and a safety voltage, there is a difference from the existing invention, also in the configuration of the overall device There is a difference.

1. Invented device can receive a safety voltage of 30V or less to the device during the daytime when the street light is not turned on, so that the street light between the distribution box control device and the street lamp control device of the present invention Communication is possible even during the day when it is not lit and continuous monitoring of line breakage and short circuit condition is possible.

2. The device invented is a control device that can operate at both commercial power and safety voltage.

3. Invented device, if there is no command of central control device or distribution box control device, the microcomputer unit for control command processing inside the control device accurately determines the current state of the system by itself, and the sunrise and sunset at the current date itself. It is a device that can automatically control the lighting time of the street lamp by performing the operation on.

  In order to implement the streetlight main control device that operates at both commercial voltage and safety voltage, the following configuration is constructed.

  When the communication module unit in charge of communication with the distribution box control device, the communication micom unit in charge of the operation control of the communication module unit, the micom unit for the column control command processing, the communication micom unit and the micom unit for the column control command processing operate abnormally or stop operation. Self-recovering microcomputer unit to automatically detect this and give reset command to the microcomputer unit to initialize the device, ID number setting unit for assigning a unique number (ID) to several street lamps, and general commercial voltage (usually 220V Above) and safety voltage power supply unit for supplying power for the controller to operate at both safety voltage (below 30V), CT unit for detecting the current value of each individual street lamp, use of each individual street lamp ZCT part for detecting leakage current value, power supply part for commercial voltage and safety voltage used in the column controller, and ballast for street light. Filter unit to remove generated power noise, power supply unit of commercial voltage (normally 220V or more) and safety voltage (30V or less), input unit connecting CT and ZCT, input commercial voltage (normally 220V or more) and safety voltage (30V) The mode converting unit which selects the mode to be operated directly by the street lamp ballast and the mode of operation by the control command of the street lamp main control device. Implemented a street lamp control device composed of a lamp control unit for monitoring the current state of the output control unit, the lamp for the street lamp to detect the presence of lamp lighting or lamp abnormality and transmits to the microcomputer for processing the lamp control command.

In addition, the power supply unit of the streetlight main control device,

It is a power supply unit for commercial voltage and safety voltage that supplies power to operate the street lamp main controller at both the general commercial voltage (normally 220V or more) and safety voltage (30V or less).

Noise filter unit to block external noise, insulation transformer unit to realize electrical insulation between external power supply unit and internal device, rectification circuit unit to rectify and convert AC voltage into DC voltage, 1 to reduce ripple component of rectified DC voltage Secondary smoothing capacitor unit, switching element unit for adjusting the pulse width of the DC voltage, secondary smoothing capacitor unit for reducing the ripple component of the pulse width controlled DC power supply, pulse width modulation signal supply unit for the operation of the switching element, The streetlight main controller includes a power supply unit including a freewheel diode unit for maintaining a current of the coil unit when the switching element is turned off, a coil unit, and a tertiary smoothing condenser unit for DC voltage smoothing at the final stage.

Street lamp control device of the present invention is responsible for transmitting and receiving data with the communication module of the distribution box control device using an internal communication module. In addition, when the street light is turned on, the street lamp is turned on by supplying commercial power, and when the street light is not turned on, the control device is continuously operated by supplying a safety voltage of 30V or less, so that the current state of the line can be checked for 24 hours. Can be.

In addition, the street lamp control device performs data transmission and reception with the communication module of the distribution box control device using a communication module to report the operation status or line status of individual street lights, or to distribute the control command of the central control device (server computer). Can also be delivered through.

 When the street lights are turned off during the daytime or when the street lights are turned off for energy saving purposes, a safety voltage of 30V or less is supplied to the human body without the risk of electric shock. It is a device to monitor the status of the device.

By doing so, the present invention is a state in which the voltage is always applied to the device, the street lamp main control device can be operated for 24 hours, it is possible to monitor the short-circuit state of the rainy season or the damage state of the track due to the road construction in real time to prevent the electric shock Can be prevented. In this way, the safety voltage is supplied to the control device even when the street light is not operating, and it is possible to monitor and identify various failure conditions such as line short circuit, short circuit, and disconnection at all times, and notify the distribution box control device.

In addition, the street lamp main control device accurately determines the current state of the system, even if there is no command from the central control unit or distribution box control device is a device that can control the lighting and turn-off state of the street lamp itself.

1 is a block diagram of a streetlight main controller.

410 is a communication module unit for communication with the distribution box control device.

415 is a communication microcomputer unit.

Reference numeral 420 denotes a microcomputer for processing the column control command.

430 is a self-recovery for initializing the device by detecting a reset command to the microcomputer unit automatically when the communication microcomputer unit 415 and the microcomputer control unit for processing the microcontrol unit 420 is abnormally operated or the operation is stopped. It's a microcomputer.

440 is a unique number (ID) setting unit that can give a unique number (ID) to a plurality of street light.

450 is a common voltage and safety voltage power supply unit for supplying power to the street lamp main control device to operate at both the normal commercial voltage (usually 220V or more) and the safety voltage (30V or less).

Reference numeral 460 denotes a CT unit for detecting a current value of each individual street lamp.

Reference numeral 470 denotes a ZCT unit for detecting a leakage current value of each street lamp.

Reference numeral 480 denotes a filter unit for removing power noise generated from a common voltage and safety voltage power supply unit 450 and a ballast for a street lamp used in a column controller.

490 is a commercial voltage (usually 220V or more) and the safety voltage (30V or less) is input, the input unit connecting the CT and ZCT.

491 is a mode conversion unit for selecting whether a commercial voltage (usually 220V or more) and a safety voltage (30V or less) are directly connected to a ballast for a street lamp or operated by a control command of a column controller.

492 is an output control unit which plays a role of connecting to a ballast for a street lamp or a column controller according to the selection of the mode converter 491.

493 is a lamp detection unit that monitors the current state of the lamp for streetlight and detects whether the lamp is turned off or is abnormal, and transmits it to the microcomputer unit 420 for processing the lamp control command.

Operation of the street lamp control apparatus of the present invention is as follows.

In the street lamp control apparatus of the present invention by using the CT unit 460 to sense the current value of the individual street lamps, using the ZCT unit 470 to detect the leakage current value of the individual street lamps, the microcomputer for processing the lamp control command 420 and the communication detection microcomputer 415 monitor the operation state of the street lamp and the operating state of the communication module at all times for 24 hours, and the operation state of these modems monitors the self-repairing microcomputer unit 430 of the street lamp control device. It is equipped with dual surveillance system to monitor again.

In this way, when a situation such as leakage current, disconnection, ballast failure or lamp failure occurs using the respective sensing units, the street lamp main control device passes through the communication module unit 410 and the microcomputer unit for processing the column controller command. Through 420, the data of the street lamp control apparatus is transmitted through the communication module unit of the distribution box control unit control unit and the control command micom unit.

2 is another block diagram of a streetlight main controller.

Reference numeral 70 denotes a filter unit for removing power noise generated from an external power supply of a column controller and a ballast for a street lamp, and in general, a coil is connected in series or a series of parallel coils and capacitors.

71 and 72 are fuses for overcurrent protection.

Reference numeral 73 is a power supply unit for converting AC power into DC power and supplying power to operate the streetlight main control device at both a general commercial voltage (normally 220V or more) and a safety voltage (30V or less).

Reference numeral 74 is a connector portion for connecting a communication module.

Reference numeral 75 is a communication module unit for transmitting the internal information of the street lamp control device to the external distribution box control device, or to transmit an external control command to the street lamp control device.

Reference numeral 76 denotes a serial communication terminal portion of a microcomputer for control or calculation of the device.

Numeral 77 denotes a microcomputer that is in charge of controlling and computing the device.

Reference numerals 78 and 79 are analog signal converters for converting an external analog signal into a digital signal so that the microcomputer 77 can recognize the analog signal.

Reference numeral 80 denotes an amplifier part for amplifying a current, a leakage current, and a voltage value.

Reference numeral 81 is a signal transformer for transmitting a signal to read the voltage and current values of the lamp or ballast connected from the outside to the microcomputer 77.

Reference numeral 82 is a connection terminal portion for connecting the voltage and current values of the lamp or ballast connected from the outside with the signal transformer.

Reference numeral 83 is an ID setting unit for determining a unique number of each streetlight main control device.

Reference numeral 84 denotes a lamp setting unit that selects lamps for 1 and 2 lamps and selects and adjusts the lamps because there is a slight difference in the characteristics of the lamps for each company.

Reference numeral 85 is an LED display for displaying the operating state of the device and the operating state of the ballast or lamp.

(86) is a serial communication terminal used to upgrade the performance of the streetlight main controller or to check the internal data from the outside.

Reference numeral 87 denotes a relay unit that operates according to a lamp lighting command.

Reference numeral 88 denotes a current sensor unit for detecting a current value.

Reference numeral 89 denotes a leakage current sensor unit for detecting a leakage current value.

3 is a power supply circuit part of the streetlight main control device.

(1) is an interference noise blocking filter unit for cutting off noise of the power line and reducing the noise intensity and increasing the communication sensitivity when the communication data moves on the communication line or the line.

(2) shows an isolation transformer section for insulating the AC input side and the DC output side.

(3) is a rectifier circuit part for converting alternating current into direct current. In general, full-wave rectification circuit or half-wave rectifier circuit using bridge diode is used.

(4) is a smoothing capacitor unit 1 for reducing the ripple component in the rectified DC component. As an example, when designing a power supply that can operate at a safety voltage of 30V and a commercial voltage of 220V, a 22 [microfarad] capacity smoothing capacitor is used.

Denoted at 5 is a switching element portion for controlling the magnitude of the DC voltage through on / off switching in order to convert the rectified DC component into a DC component having a desired size.

Reference numeral (6) is a pulse width control unit for generating a control signal for the ON time and the OFF time in order to control the on / off of the switching element.

(7) is a smoothing capacitor unit 2 for reducing the ripple component of the DC voltage generated at the rear end of the switching element. As an example, when designing a power supply that can operate at a safety voltage of 30 V and a commercial voltage of 220 V, a smoothing capacitor with a capacity of 100 [microfarads] is used.

(8) is a freewheeling diode used in a typical converter.

(9) is a coil part used in a general converter.

Denoted at 10 is a smoothing capacitor unit 3 for reducing the ripple of the DC voltage at the final stage. As an example, when designing a power supply that can operate at a safety voltage of 30V and a commercial voltage of 220V, 80 [microfarad] capacity smoothing capacitors are used.

In the existing device or invention, even if a track failure occurs during the day, information about a track failure cannot be known until the lamp is turned on at night. However, in the apparatus of the present invention, the line can be constantly monitored by applying a safety voltage to the line even in the daytime when the street light is turned off as described above, and if a leakage current or a line breakdown occurs in the line, it immediately detects the fact and takes action. Can be taken.

1 is a block diagram of a streetlight main controller.

2 is another block diagram of a streetlight main controller.

3 is a power supply circuit part of the streetlight main control device.

Claims (2)

 The street lamp control device operating at a commercial voltage and a safety voltage includes a communication module part for communication with a distribution box control device, a communication micom part for controlling the operation of the communication module part, a microcomputer part for processing a column control command, a communication micom part and a column control. When the microcomputer part for command processing operates abnormally or stops, the self-recovering microcomputer unit which initializes the device by automatically detecting it and giving a reset command to the microcomputer unit, a unique number that can be assigned to a number of street lamps. ID setting part, commercial voltage safety voltage power supply for supplying power to enable the controller to operate at both general commercial voltage (normally 220V or more) and safety voltage (30V or less) CT unit for detecting value, ZCT unit for detecting leakage current value of each street lamp, phase used in column controller Filter unit to remove power noise generated from power supply unit for safety voltage and safety voltage and ballast for street light, power supply unit for commercial voltage (normally 220V and above) and safety voltage (30V and below), input unit connecting CT and ZCT, Mode conversion part and mode conversion part to select the mode to operate by directly inputting the commercial voltage (usually 220V or more) and safety voltage (below 30V) to the streetlight ballast and the control command of the streetlight main control device. Output control part that is connected to ballast ballast or to lamp controller to monitor current status of lamp for lamp and detects whether lamp is turned off or lamp abnormal and delivers to microcomputer for processing lamp control command. Street lamp main control device consisting of a lamp detection unit. According to claim 1, wherein the power supply unit of the streetlight main control device, It is a power supply unit for commercial voltage and safety voltage that supplies power to operate the street lamp main controller at both the general commercial voltage (normally 220V or more) and safety voltage (30V or less). Noise filter unit to block external noise, insulation transformer unit to realize electrical insulation between external power supply unit and internal device, rectification circuit unit to rectify and convert AC voltage into DC voltage, 1 to reduce ripple component of rectified DC voltage Secondary smoothing capacitor unit, switching element unit for adjusting the pulse width of the DC voltage, secondary smoothing capacitor unit for reducing the ripple component of the pulse width controlled DC power supply, pulse width modulation signal supply unit for the operation of the switching element, Street light main control device including a power supply unit consisting of a freewheel diode unit for maintaining the current in the coil unit when the switching element is turned off, the coil unit, the third smoothing capacitor unit for smoothing the DC voltage of the final stage.

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