KR20130067492A - Light monitoring and control system of street light and security light for saving energy using zigbee network - Google Patents

Abstract

PURPOSE: A lamp post monitoring and light controlling device of an energy-saving type street light and a security light which uses a Zigbee network is provided not only to perform functions that monitor and read a lamp post, but also to check electric energy which is consumed by each lamp post and to transmits information on the checked electric energy to a control center, thereby controlling the total power consumption of a street light including the power consumption of each lamp post. CONSTITUTION: A lamp post monitoring and light controlling device includes a lamp post controller(10) which is connected to a street light or a security light; a central control server(20); and a gateway(30) which is communicated through the medium of a central control server with the lamp post controller. The status information of a street light or a security light is transmitted through the gateway to the central control server. A control command, which is made by the central control server, is transmitted through the gateway to the lamp post controller for the control of the lamp post. [Reference numerals] (20) Central control server for street lamps; (30) Distribution board controller

Description

LIGHT MONITORING AND CONTROL SYSTEM OF STREET LIGHT AND SECURITY LIGHT FOR SAVING ENERGY USING ZIGBEE NETWORK}

The present invention relates to a control system such as a street light and security, and more particularly to a light control and lighting control system such as energy-saving street lights and security using a Zigbee network.

In general, street lights are installed along the roadway, and about 1 million street lights and 40,000 controllers are installed nationwide. In the case of security, it is usually installed randomly in a place where security is weak in alleys, and is usually installed in a power pole. In such a security light, one controller or a flasher is installed per one security light for blink control.

Lighting controllers such as street lights or security lamps are classified into timer, unidirectional (VHF), and bidirectional (CDMA, Ethernet) methods according to the control method. The timer method is a method of turning on and off at a predetermined time by an electronic clock, and the one-way method is a method of controlling the lighting and extinguishing time and command unilaterally using FM radio waves at a control station (base station). The control command is transmitted from the central control center to each controller using a mobile communication network. Among these, the bidirectional type is a system that is growing rapidly in recent years by transmitting sensor detection contents (leakage, lamp failure, ballast failure, etc.) installed in each controller to the central control center. In the case of security light controller, the timer method is installed most (about 70%), and the one-way controller occupies the rest.

Currently, about 35 ~ 40% of local governments are introducing bidirectional street light controllers, and security lamps are concentrated in the market of timers (about 70%). However, the streetlight and security light controllers are moving away from simple flashing control devices to become efficient operation management and energy saving devices for road lighting facilities. In particular, operation management is economical and effective, such as prevention of human accidents and automatic maintenance of maintenance tasks and equipment, and is applied as a U-CITY urban control standard. Therefore, in order to save energy, the need for remote monitoring and reading of street lamps and lighting control technologies becomes increasingly important.

An object of the present invention is to provide a system that can control the total power consumption of street lamps as well as the power consumption of each column by checking the amount of power consumed by each column, as well as the function of the existing column monitoring and meter reading. It is. This also prevents energy consumption from certain lanterns.

In addition, another object of the present invention is to provide a system that can check the status and failure status of street lights and security lamps in real time through the monitoring and metering of lamps such as street lights or security lights. Columnar monitoring and metering typically have functions such as ballast failure, lamp failure, overcurrent and short circuit isolation. If a fault such as a ballast failure, lamp failure or overcurrent becomes faulty for a certain time, the controller will automatically cut off the power supply to the lamp. A fault such as a short circuit causes the power to be turned off immediately at the time of a short circuit. Through the lamplight monitoring and meter reading, you can check the broken lamplight / security lamplight in real time, which enables quick repair and smooth maintenance.

According to an embodiment of the present invention, a light control system including a light controller, a central control server connected to a street lamp or a security light, and a gateway communicating with the light controller and the central control server, the light control system measured in the light controller The state information such as the street light or the security light is transmitted to the central control server through the gateway, and the control command issued from the central control server is transmitted to the controller to control the column controller through the gateway. Is provided.

In addition, the column controller and the gateway can communicate in a Zigbee manner, the gateway and the central control server can communicate in any one of the method of CDMA or Ethernet.

In addition, the state information may include information on whether the street light or the security failure.

In addition, the state information may include information on the power consumption of the street light or the security.

In addition, the column controller may adjust the flashing and the brightness of the street light or the security light in a predetermined step, and the control command may include a command for controlling the flashing and brightness of the street light or the security light.

In addition, when the amount of power consumption of the street light or the security lamp is more than a predetermined reference value, by controlling the brightness of the street light or the security lamp through the control command can be controlled to fall to the power consumption below the predetermined reference value.

According to the present invention, more efficient maintenance is supported through the monitoring and troubleshooting of the streetlights and security lights, and the energy efficiency and safety can be improved than the conventional system by the power off after the failure diagnosis. It also has the advantage that you can always check all this information on the central control server. In addition, the amount of power consumed in each column can be monitored through the central control server. In the central control server, each column controller can be remotely controlled. Remote control can support both automatic and manual control, or can support each. Such a system eliminates the need for a person to individually check the status of the lamplight or to check the status of blinking.

In addition, by checking the amount of power consumed by each light controller, you can check the amount of power consumed in the section in which the street lights or security lamps are installed.

1 is a system configuration diagram showing a lighting control system according to an embodiment of the present invention.
FIG. 2 is a view showing a state in which a column controller and a Zigbee module are attached to a street lamp or a security lamp in a lighting control system according to an exemplary embodiment of the present invention.
3 is a sequence diagram showing a control flow of the lighting control system according to an embodiment of the present invention.
4 is a block diagram showing an operation flow of the column controller in the lighting control system according to an embodiment of the present invention.
5 is a block diagram showing an operation flow of the lighting control system according to an embodiment of the present invention.
6 is a view showing the configuration of a central control server of the lighting control system according to an embodiment of the present invention.
7 is a view showing a screen showing the power consumption in the lighting control system according to an embodiment of the present invention.
8 is an installation connection diagram of a distribution box controller included in the lighting control system according to an embodiment of the present invention.
9 is a connection diagram between a gateway and a magnetic switch included in the lighting control system according to an embodiment of the present invention.
FIG. 10 is a diagram illustrating an example of configuring a mesh network using ZigBee.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of the well-known technology and its configuration which are determined to obscure the gist of the present invention will be omitted. In addition, in describing the present invention with reference to the drawings, components that perform the same function will be described with the same reference numerals.

1 is a system configuration diagram showing a lighting control system according to an embodiment of the present invention, Figure 2 is a lighting controller and a Zigbee module attached to the streetlight or security lamp in the lighting control system according to an embodiment of the present invention. The figure shown.

Lighting control system according to an embodiment of the present invention includes a column controller 10, the central control server 20, and the gateway 30. The gateway 30 functions to communicate with the controller 10 and the central control server 20 through each other.

The column controller 10 and the gateway 30 may communicate in a Zigbee manner. In this case, as shown in FIG. 2, the Zigbee communication module may be connected separately from the column controller 10. Of course, the present invention is not limited to this communication method, and may be changed by selecting another method. In addition, when there are a plurality of street lights or security lights, as shown in FIG. 1, there may also be a plurality of controllers 10. The plurality of controllers 10 may also communicate in a Zigbee manner or another manner.

The column controller 10 may be attached to each column one by one and may be small in size so as to enter the column. Basically, one column controller 10 can control two lights at the same time, but each of the column controller 10 can be controlled one by one, or may be designed to control three or more. That is, the column controller 10 may control one or more lights simultaneously or separately, and may control only one lamp on or off when controlling two or more lights.

In addition, when the Zigbee module and the column controller 10 is directly connected as shown in Figure 2 may be configured to perform serial (RS-232) communication.

The gateway 30 and the central control server 20 may communicate by either CDMA or Ethernet. This does not mean that the present invention is limited to such a communication method, and of course, it is also possible to select and change other methods of communication.

The state information of the street lamp or security light measured by the column controller 10 is transmitted to the central control server 20 through the gateway 30. Here, the status information may include various information. For example, the status information may include information about whether a street lamp or a security light is broken. Or it may include information such as monitoring, meter reading, failure diagnosis, etc. In addition, the status information may include information on the amount of power consumption, such as street lights or security.

The control command issued from the central control server 20 is transmitted to the column controller 10 through the gateway 30 to control the column controller 10. In this case, the control command may include various information. For example, the control command may include a command for controlling the blinking of the street lamp or security light and controlling the brightness. To this end, the column controller 10 should be able to adjust the blinking of the street light or security light or adjust the brightness in a predetermined step.

The blinking of the street light or security light may be manually controlled or automatically controlled. In addition, in adjusting the brightness of the column, various brightness may be set, but it is preferable to perform dimming control of 70% brightness. In addition, the schedule function can be added, so the street light or security light can be blinked or dimmed at the desired time.

On the other hand, when the amount of power consumption of the street lamp or security light is more than a predetermined reference value, by controlling the brightness of the street light or security lamp through a control command it may be controlled to reduce the power consumption to less than the predetermined reference value.

Hereinafter, a detailed example of the above description will be provided with reference to FIG. 3.

The column controller 10 is attached to each of the street lights or security lights. When power is applied to the controller 10, self diagnosis is performed to see if there is an abnormality in the column. If there is an error at this time, the power is cut off and the failure information is transmitted to the gateway 20. The column controller 10 checks the current of a street lamp or a security lamp every second. This current is used to check the status of the column, diagnose the fault, and calculate the amount of power consumed. In case of failure diagnosis, the first diagnosis is carried out for a certain time. If it is determined that the failure is occurred, the first warning is given to the central control server 30 by messages such as “lamp check request”, “stabilizer check request” and “current check request”. Send it. After that, if there is a problem continuously, the secondary failure diagnosis result is sent in the message such as “Lamp failure”, “Balter failure”, “Overcurrent”. When an abnormality occurs in a street light or security light, the lamplight information is sent to the gateway 30 through the Zigbee communication. And periodically send the status information of the lantern. The state information may include information about the number of lights (1, 2, etc.) and the types of lights (sodium, metal halide, etc.). When a failure occurs, such as a ballast failure, lamp failure, overcurrent, or short circuit interruption, the column controller 10 may cut off the power in advance to increase safety of the street lamp or security and to consume more power. In addition, when the user consumes the amount of power by the maximum amount of power previously set by the user, the controller 10 automatically reduces the brightness of the lamp to 70% to reduce power consumption. Here, 70% is merely an exemplary value and the present invention is not limited thereto. Meanwhile, the maximum amount of power consumed in all sections such as street lights or security can be set in advance as well as the individual maximum amount of power. At this time, the central control server 20 calculates the amount of power consumption transmitted to the central control server 20 when the amount of power consumption exceeds a preset maximum power consumption 70% of the brightness of the lamp over the entire section where the street light or security lights are installed Can be lowered. In summary, the lighting control may be adjusted to the maximum power consumption set for each column, but may be integrated and adjusted according to the maximum power consumption of all installed sections. In addition, the user (User) can be set through the central control server (20).

Hereinafter, with reference to Figure 4 will be presented a specific example of the above description with respect to the column controller 10.

When power is applied to the column controller 10, the column is stabilized and current optimized for a predetermined time. Since the column controller 10 itself checks the abnormality of the column. In this case, when there is an abnormality in the column, the column controller 10 cuts off power to the column to secure the safety of the column. And when there is no abnormality in the column, the column controller 10 is to operate normally. In normal operation, the current state of the column controller 10 is continuously checked to determine whether there is a failure and the amount of power is transmitted to the gateway 30. In addition, the maximum amount of power consumption is set in each of the column controller 10, if the value exceeds this value, the brightness of the lamp in the controller 10 itself is to operate by lowering the brightness to 70%. For example, if the maximum power consumption of each lamp is set to 10Kw, the column controller 10 calculates and checks the amount of power consumed by the light pole to automatically control the brightness of the lamp when more than 10Kw of power is consumed. And if the column controller 10 is set to 250w per hour, there is an automatic control function to automatically lower the brightness of the lamp to 70% when more than 250w per hour is consumed.

5 is a block diagram showing an operation flow of the lighting control system according to an embodiment of the present invention, Figure 6 is a view showing the configuration of a central control server of the lighting control system according to an embodiment of the present invention.

As shown in FIG. 6, the central control server 20 may include an APP server, a web server, and a DB server. In contrast to each of the configurations shown in FIG. 5, the APP server corresponds to the middleware server, the web server corresponds to the web service, and the DB server corresponds to the database.

It is a web based system consisting of an APP server, a web server, and a DB server. The information is stored in the DB server, and the web server shows this information on the screen. The APP server mediates the data exchange between the DB server and the web server, and stores the information transmitted from the gateway 30 in the DB server.

When configuring the system in the form of a web as shown in Figure 5 and 6 can access the central control server from the PDA or SmartPhone as well as the PC has the advantage that can adjust the overall system.

More detailed description of the operation of the central control server 20 is as follows. The central control server 20 is designed to check the status information and failure status of the entire streetlight or security light. In the central control server 20, On / Off / Dimming control can be manually or automatically performed for each street light, and On, Off time setting is also possible for schedule control. The central control server 20 is composed of three servers each functioning DB server stores all the information coming from the gateway 30 and the control command by the user (User) is also stored in the DB server. Web server can show information such as street light or security saved in DB server. On the screen, you can check the status information of street lights and security such as on / off, dimming information of the street lamps, failure (ballast failure, lamp failure, over current, short circuit). The APP server enables to store the information transmitted from the gateway 30 to the DB server, and to read data from the web server to the DB server.

7 is a screen showing the power consumption in the lighting control system according to an embodiment of the present invention. In other words, Figure 7 shows the amount of power consumed by each street light. In addition, it is possible to check the total power consumption of the entire section where street lights and security lights are installed. The amount of power consumed is displayed to the user or administrator as a graph by day or month to manage the amount of power consumption more efficiently. Meanwhile, not only the power consumption but also the approximate power usage fee according to the actual power consumption can be displayed.

FIG. 8 is a connection diagram of a distribution box controller included in the lighting control system according to an embodiment of the present invention, and FIG. 9 is a diagram illustrating a connection between a gateway and a magnetic switch included in the lighting control system according to an embodiment of the present invention. This is the connection diagram.

Referring to FIG. 8, the gateway 30 installs a magnetic switch to control the high and the high. The magnetic switch may be automatically controlled by the gateway 30 according to the sunset / sunrise time. It may also be controlled according to the command of the central control server 20.

FIG. 10 is a diagram illustrating an example of configuring a mesh network using ZigBee. When the mesh network is composed of Zigbee, information can be transmitted through another path even if communication is lost at one node. Detailed description thereof is as follows.

The gateway 30 and the column controller 10 configure a mesh network using Zigbee communication. The mesh network is configured as shown in FIG. If one Zigbee node fails or there is a communication failure, information can be transferred to another path as shown in FIG. It is possible to communicate between ZigBee modules attached to each column through the mesh network as shown in FIG. Through the ZigBee module of the light pole, all the light pole state information and failure information can be delivered to the gateway 30. In addition, the gateway 30 has its own timer to calculate the sunrise and sunset time to operate the appropriate time to turn on or off the street lights or security lights, so that the street lights or security lights may be turned on or off later.

In the foregoing, preferred embodiments of the present invention have been described with reference to the accompanying drawings. Here, the terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, but should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

10: column controller
20: central control server
30: gateway

Claims (6)

In the lighting control system comprising a column controller, a central control server and a gateway for communicating through the column controller and the central control server connected to the street light or security lamp,
The state information of the street light or the security light measured by the column controller is transmitted to the central control server through the gateway,
And a control command issued from the central control server to the column controller through the gateway to control the column controller.
The method of claim 1,
The column controller and the gateway communicate in a Zigbee manner,
And the gateway and the central control server communicate by either CDMA or Ethernet.
The method of claim 1,
The state information includes a lighting control system including information on whether the street light or the security failure.
The method of claim 1,
The state information includes the information on the power consumption of the street light or the security light control system.
5. The method of claim 4,
The column controller can adjust the blinking and the brightness of the street light or the security light in a predetermined step,
The control command includes a command for controlling the blinking and brightness of the street light or the security light.
The method of claim 5,
And when the amount of power consumed by the street lamp or the security lamp exceeds a predetermined reference value, controlling the brightness of the street lamp or the security lamp to fall below the predetermined reference value by controlling the brightness of the street lamp or the security lamp through the control command.

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