KR20190063554A - DIMMING CONTROL SYSTEM OF LED STREETLIGHT AND SECURITY LIGHT BASED ON IoT - Google Patents

Abstract

The present invention relates to an IoT-based LED streetlight / security dimming control system, comprising a plurality of LED streetlights and security lights (10); An integrated management server (20) for remotely monitoring and controlling the plurality of LED street lamps and security lamps using an IoT-based wireless network; And a LORA or NB-IOT wireless network base station (30) in wireless communication with the plurality of LED streetlights and security lights (10) and the integrated management server (20), wherein the plurality of LED streetlights and security lights Each having an IoT device 100 including a dimming controller for transmitting and receiving information such as streetlight / security using an IoT-based wireless network technology and adjusting the illuminance of each LED streetlight and security light 10, Remote control and monitoring of each LED streetlight and security light 10 is performed by the integrated management server 20 and the IoT device 100. According to the present invention, by using the IoT device and the IoT-based wireless network as the backbone of the communication network, it is possible to control the LED brightness of the street lamp and security device according to the change of the ambient illumination to induce smooth traffic flow, And it can reduce the maintenance cost by checking LED status of the street light and security light device in real time.

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a dimming control system,

The present invention relates to an IoT-based LED streetlight / security dimming control system, and more particularly, to a dimming control system such as an IoT device and an IoT-based wireless network as a communication network backbone, IoT-based LED street light / lighting system including dimming controller that can smooth traffic flow, prevent power wastage by power saving operation, and reduce maintenance cost by checking LED status of streetlight / Security, and the like.

The term Internet of Things (IoT) first appeared in 1998 at the Massachusetts Institute of Technology (MIT) Auto-ID Lab. In 2005, ITU-T published its annual report, 'The Internet of Things', which predicted that the Internet will be the most basic framework for all the structures of the IT revolution. The report defines the Internet as "a new information communication infrastructure that enables people to connect all the things in the world with each other through a network so that they can communicate with each other, anywhere, between people and things".

The Internet means that devices connected to the network exchange information smartly with each other without human intervention. The notion that objects communicate with each other without depending on humans is similar to ubiquitous or machine-to-machine (M2M). However, M2M is a technology that focuses on only the concept of communication between devices, but expands it to the Internet to interact with all information.

Specifically, in order to implement the Internet of things, sensors for obtaining information in the surrounding environment, a communication network supporting connection to a network, and a service interface technology for processing, processing, and processing information in accordance with the service field and form are needed. In addition, security technologies to protect the collected data leaks and device control are also important.

An appropriate network is needed to spread the Internet in earnest. In general, Wi-Fi networks that we use at home are not as bad as wireless networks. However, since the bandwidth is large, the amount of data is large, the power consumption is high and the signal reach is short.

Objects The Internet refers to the technology or environment in which sensors are attached to objects to exchange data in real time over the Internet. Devices connected to the Internet can send and receive information directly without human assistance. In the past, technologies such as Bluetooth (Bluetooth) and short-range wireless communication (NFC) were used. However, Bluetooth and short-range wireless communication (NFC) were able to communicate only at a short distance and had to be linked to separate wired / wireless Internet.

For this reason, there has been a move to establish a dedicated network optimized for Internet devices. IoT-only technologies include LTE-M and NB-IoT for licensed bands, and SIGFOX and LORA for license-exempted bands.

The Internet of Small Things is a network of things that transmit data to the battery without power at all times.

LORA is a technology that uses LTE to connect various objects to the network. LORA can share all infrastructure information within LTE coverage.

LORA is simpler in structure than LTE-M. A protocol is performed between the device and the network server, and the base station simply forwards the radio reception packet to the backhaul section. Therefore, the base station equipment and the terminal structure are simple.

LORA is easy to deploy because it has wide signal arrival area, low frequency interference and high security. In addition, it is a low-cost, low-power, low-capacity transmission technology that can be operated only by a battery without requiring a small amount of data transmission and constant power source.

Meanwhile, NB-IoT is one of low-power wide-area (LPWA) Internet (IoT) technologies using LTE frequency. It is used for tracking, sensing, and reading of low-capacity data intermittently. Specifically, for example, water, gas, electric meter reading, air / water quality measurement system, location tracking service (tracking of elderly persons, pet management, prevention of bike loss), fire, hazardous materials, gas, Sensing services, building automation, home automation, and playground management. Because NB-IoT is ultra low power, it can be used without replacing the battery for a long time.

Since the objects attached to the sensor are connected to the LTE network, the user can remotely control objects at any time and anywhere, and inter-object communication is also possible. In particular, it can be implemented only by upgrading the software without building the equipment separately, so it is less expensive than the existing IoT network such as Zegbee.

Meanwhile, with the exponential growth of LED lighting, various integrated circuit devices that supply regulated power to LEDs are emerging one after another. Although DC current sources with large power consumption have been used for a long time as standard, energy issues are becoming a serious issue and they are now being replaced by switching mode LED drivers.

Currently, it requires precise control of constant current in a wide range of fields, from flashlight to the display board of the stadium, and in most cases it is necessary to adjust the LED output intensity momentarily. Such a function is called dimming control, and various dimming control methods have been developed.

In addition, it is a tendency to adopt LED lighting that saves power consumption even in streetlight and security. Particularly, it is general that the street light and the security light employing the LED light are poor in the installation environment and the rated electric power of the set LED light is not used accurately. LED lighting used for street lamps and security lamps is characterized in that the power consumption is very flexible from 180 to 240 W depending on the supply voltage state. If the LED lighting is not used at the set rated power, it may affect the lifetime of the LED lighting if it is repeated over a long period of time.

As a control system of LED lighting using wireless communication, Korean Patent Registration No. 10-1306762 'Wireless communication-based LED lighting control system and method thereof' is disclosed.

The ZigBee gateway includes a control computer having communication means of the Internet network, a ZigBee gateway connected to the control computer through a mobile communication network or an Internet network and having Zigbee wireless communication means, Wherein the control computer sets a rated power threshold of the LED lighting to transmit to the at least one LED dimming controller via the ZigBee gateway and the at least one LED dimming controller Receives the rated power threshold value and performs dimming control of the LED illumination using the dimming reference power value, measures the current active power of the LED illumination in the LED dimming controller, compares the current active power with the dimming reference power value And if it is matched, Transmitted to the control computer, the control computer is a wireless-based LED lighting control system and method which is characterized in that the analysis of the service life of the LED light initiated on the basis of the received effective power data.

In the LED lighting control system using the Zigbee wireless communication of the above document, the Zigbee wireless communication is determined by the maximum output of the distance constrained communication technology, and it is necessary to integrate with the wire to extend the distance, and the additional service can not be provided.

Therefore, by building a road lighting system using the Internet of things, it is possible to attach a sensor that can detect road users per land line by security, and to connect a security server such as a security tower and a server to a communication network. It is necessary to adjust the brightness automatically.

On the other hand, a unidirectional communication control system based on a streetlight controller and a streetlight program which detects a day and night illumination and turns on and off is common.

The unidirectional communication streetlight control system includes a main controller that controls the overall streetlight control system and generates a control signal by including the control signal in the area code, and a controller that receives the control signal of the main controller, A plurality of street lamp controllers for controlling the assigned street lamp apparatus, and a plurality of street lamp apparatuses, each of which is controlled by the street lamp controller and is assigned a unique number,

The conventional streetlight controller of the streetlight control system can control the streetlight device remotely, but it can not control the power saving by controlling the brightness of the streetlight device or can not check the state of the streetlight device remotely, thus waste of unnecessary time .

Accordingly, there is a demand for a remote dimming controllable streetlight system that can control the brightness of the streetlight according to the variation of the ambient illuminance to prevent power waste and reduce the maintenance cost by checking the streetlight device in real time.

In order to overcome the above-described problems, the present invention uses a IOT device and a LORA or NB-IoT wireless network as a backbone of a communication network to adjust LED brightness of a streetlight / And a dimming controller that can reduce the maintenance cost by checking LED status of a security device in real time in order to provide a dimming control system such as LED streetlight / security based on IoT.

It is another object of the present invention to provide a dimming control system such as an IOT-based LED streetlight / security system that can reduce the maintenance cost by checking the status of the LED streetlight / security light in real time using the IoT device and the LORA or NB- To provide.

Further, the present invention not only provides a wireless remote monitoring and control solution such as an LED street light / security utilizing an IoT-based LED street light dimming control system, but also provides a wireless remote monitoring and control solution such as use power, voltage, current, Such as LED streetlight / security based on IoT-based state information of basic streetlight / security light including temperature, humidity, and humidity.

Further, the present invention is to prevent the inflow of worms into the IoT device.

In addition, the present invention provides an additional service using an additional sensor (air pollution sensor such as fine dust, nitrogen dioxide, temperature / humidity, fire detection sensor, etc.) to the LED street light / security light through the dimming control system such as LED street light / To provide a dimming control system such as IoT based LED streetlight / security that can be provided.

According to an embodiment of the present invention, there is provided a dimming control system for LED security using an IoT-based wireless network, including: a plurality of LED security lamps; An integrated management server that includes a control monitor module and an integrated management DB and controls each of the plurality of LED security devices using an IoT-based wireless network or remotely monitors and controls the plurality of LED security lights; And an IoT-based wireless network base station wirelessly communicating with the plurality of LED security devices and the integrated management server, wherein each of the plurality of LED security devices transmits and receives information such as security to each other using IoT based wireless network technology , LED security, and the like, and remote control and monitoring of each LED security light is performed by the integrated management server and the IoT device.

According to an embodiment of the present invention, the integrated management server includes a dimming data storage unit for storing dimming control data set for each of the LED security lamps or the LED security lamp of a certain group; An LED dimming setting unit for setting the dimming control to each of the LED security lights or the like, or a certain group of LED security lights; An LED information storage unit for storing LED-related information used in the LED security lamp such as the rated voltage of each manufacturer of the LED; An LED lifetime analyzer for calculating the rated power usage time of the LED lighting based on the active power and the rated power of each of the LED security lights to analyze lifetime of the LED lighting; And an LED active power storage unit for receiving and storing active power data transmitted to each of the LED security lamps.

According to an embodiment of the present invention, the IoT device may include a microcontroller (MCU) installed in a predetermined area of the LED security light such as LED security light, and for processing various functions such as information transmission, information storage, and status display; A sensor unit including a road user detection sensor, a power / voltage / current measurement sensor, a temperature / humidity sensor, a fine dust detection sensor, a power failure and leakage detection sensor, an illumination sensor, a water level sensor, a door open sensor, and a fire detection sensor; Insect inflow preventing means; IoT based wireless network module; GPS; And LED security dimming controllers.

Preferably, the dimming controller includes: constant current control means for adjusting the current supplied from the power supply means to keep the current constant; And PWM control means for controlling the brightness of the LED by controlling the constant current controlled by the constant current control means in a pulse width modulation (PWM) mode.

According to an embodiment of the present invention, a control monitoring app is installed as a mobile terminal mounted on a vehicle or carried by a pedestrian walking on a road in which the plurality of LED security lights are installed and the plurality of LED security lights are installed And a vehicle wireless Internet service including a data service, a location based service, a security service, and traffic information through data communication between each LED security light and the user terminal.

According to another embodiment of the present invention, an LED street light dimming control system using an IoT-based wireless network includes a plurality of LED street lamps; A local controller for controlling the plurality of LED streetlights; An IoT device installed in each of the street lamps for exchanging information with the local controller and controlling the respective streetlights according to individual or group control commands from the local controller; A dimming data storing unit and an LED dimming setting unit for setting dimming control to each LED street lamp or a certain group of LED lamps, and controlling the local controller by using the IoT-based wireless network to control the street lamps individually and individually An integrated management server; And an IoT-based wireless network base station connecting the local controller and the integrated management server in a bidirectional wireless communication connection.

Advantageously, said local controller comprises: a microprocessor for processing all of the functions of information transfer, information storage, status indication, etc.; An IoT-based wireless network module communicating with the IoT device; A wireless communication unit for exchanging information with the control computer of the integrated management server; A display unit for displaying various measured values and communication states; A status display LED unit for displaying an operation state of the local controller; An external I / F unit for performing maintenance of the local controller according to an operation state of the local controller and updating corresponding data; A constant voltage supply unit for supplying power; And a monitoring and reset circuit monitoring the local controller and resetting the local controller according to the monitoring result.

Preferably, according to an embodiment of the present invention, the IoT device of the LED street light dimming control system using the IoT-based wireless network includes: a microprocessor for processing various functions such as streetlight information transmission, information storage, and status display; An IoT-based wireless network module for receiving a control command from a local controller; A current and voltage sensor for detecting an abnormal state of the streetlight; An A / D converter for converting an analog signal sensed by the sensors into a digital signal and inputting the digital signal to a microprocessor; A constant voltage supply unit for supplying power; A monitoring and reset circuit for sensing the IoT device and resetting the IoT device according to a monitoring result; A relay driving circuit which receives a control command through a wireless communication module / IoT-based wireless network module when an abnormal state occurs and drives a relay of a local controller according to a received control command to cut off the power of the corresponding street lamp; GPS; And an LED streetlight dimming controller.

According to an embodiment of the present invention, the IoT device of the LED streetlight dimming control system using the IoT-based wireless network may be a road user sensor, a power / voltage / current sensor, a temperature / humidity sensor, And a sensor unit including a leakage current sensor, an illuminance sensor, a water level sensor, a door open sensor, and a fire sensor; And insect inflow preventing means.

Advantageously, the IoT-based wireless network may be a LORA or NB-IOT wireless network.

As described above, according to the IoT-based LED streetlight / security dimming control system according to the present invention, by using the IoT device and the IoT-based wireless network as the backbone of the communication network, the LED brightness of the streetlight / It can lead to smooth traffic flow, prevent power wastage by power saving operation, and can reduce maintenance cost by checking LED status of street lighting / security appliances in real time.

In addition to providing wireless remote monitoring and control solutions such as LED street light / security using dimming control system such as IoT based LED street light / security, it is also possible to provide LED remote control such as LED street light / security light using power, voltage, current, , Humidity, and the like can be used.

In addition, it is possible to provide an additional service using an additional sensor (air pollution sensor such as fine dust, nitrogen dioxide, and temperature / humidity, water level, door openness, fire detection sensor, etc.) to the LED street light / security light.

FIG. 1 (a) is a schematic block diagram of a dimming control system such as an IOT-based LED security system according to an embodiment of the present invention. FIG. 1 (b) Respectively.
FIG. 2 is a diagram showing a configuration of an IoT device, integrated server management, and a user terminal such as LED security in a dimming control system such as the IoT-based LED security of FIG.
3 is a block diagram schematically illustrating the configuration of an IoT device including a wireless dimming controller according to an embodiment of the present invention.
4 is a block diagram schematically illustrating the configuration of integrated server management in the dimming control system, such as the IoT based LED security system of FIG.
Fig. 5 is a perspective view showing an insect inflow prevention structure according to an embodiment of the present invention. Fig.
FIG. 6 is a block diagram schematically illustrating an application example of a dimming control system such as an IOT-based LED security according to an exemplary embodiment of the present invention.
7 is a schematic block diagram of an IoT based LED streetlight dimming control system in accordance with another embodiment of the present invention.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings and specification, there are shown in the drawings and will not be described in detail, and only the technical features related to the present invention are shown or described only briefly. Respectively. The specific configurations and functions described in detail herein are not intended to be limiting, but merely as the basis for the claims and as a basis for teaching the ordinary skill in the art to which the present invention pertains in various ways.

The term "module" in this specification may mean a functional and structural combination of hardware for carrying out the technical idea of the present invention and software for driving the hardware. For example, the module may mean a logical unit of a predetermined code and a hardware resource for executing the predetermined code, and it does not necessarily mean a physically connected code or a kind of hardware. Can be easily deduced to the average expert in the field of technology.

The present invention will be described with respect to a dimming control system such as IoT-based LED security applied to an LED security device, but the present invention is not limited thereto, and the IoT-based streetlight dimming control system of the present invention can also be applied to an LED streetlight device.

Advantageously, the IoT-based wireless network may be a LORA or NB-IOT wireless network.

The IoT-based LED security dimming control system of the present invention will be described in detail below using LORA wireless network as an embodiment.

It should be understood by those skilled in the art that the IoT-based LED security dimming control system of the present invention can be implemented using an NB-IoT wireless network, and a detailed description thereof will be omitted herein.

FIG. 1 (a) is a schematic block diagram of a dimming control system such as an IOT-based LED security system according to an embodiment of the present invention. FIG. 1 (b) FIG. 2 is a diagram illustrating a configuration of an IoT device, integrated server management, and a user terminal, such as LED security in a dimming control system such as the IoT-based LED security of FIG.

2, a dimming control system such as an IOT-based LED security using a LORA wireless network includes a plurality of LED security lights 10, an integrated management server 20, a LORA A wireless network base station 30, a user terminal 40, and a management / monitoring terminal 50.

The plurality of LED security lights 10 transmit and receive streetlight information to each other using the LORA wireless network technology and finally transmit information such as security to the integrated management server 20 so that the LED security light 10, Remote control and monitoring of the vehicle 10 are performed.

The integrated management server 20 receives information such as security, etc., by using current, power, average voltage, power failure, short circuit, lighting and extinction, temperature and humidity of each LED security light 10, And short-circuit and fault occurrence situations in real time and cope with them promptly.

In addition, the integrated management server 20 not only saves energy through lighting and turning-off time adjustment of each LED security light 10 based on security information, but also reduces the inconvenience of residents due to failure of each LED security light 10 And prevent accident and safety accidents.

On the other hand, the management / monitoring terminal 50 receives the streetlight information from the integrated management server 20 in the mobile terminal owned by the field engineer, and not only the integrated management server 20 as the management center, Enabling direct control and monitoring of the LED security light 10.

Meanwhile, the integrated management server 20 includes a control monitoring module 21 and an integrated management DB 22. The control monitoring module 21 receives streetlight information for a plurality of LED security lights 10 from one LED security light 10 through the LORA wireless network base station 30 and stores the streetlight information in the integrated management DB 22 .

As used herein, the term "DB" may refer to a functional and structural combination of software and hardware that stores information corresponding to each database. The DB may be implemented as at least one table, and may further include a separate DBMS (Database Management System) for searching, storing, and managing information stored in the database.

Also, it can be implemented in various ways such as a linked-list, a tree, and a relational database, and includes all data storage media and data structures capable of storing information corresponding to a database.

The control monitoring module 21 transmits the streetlight information of at least one LED security light 10 stored in the integrated management DB 22 to the LORA wireless network base station to the mobile terminal owned by the field engineer, As well as a plurality of LED security lights 10 by the field engineer, as well as the integrated management server 20,

The user terminal 40 is a mobile terminal carried by a pedestrian of a road on which a plurality of LED security lights 10 are installed or a vehicle terminal mounted on the vehicle, and is a terminal in which a control monitoring app 41 is installed and driven. The control monitoring application 41 sets a data session with the LED security light 10 belonging to the Wi-Fi communication coverage of the LORA wireless network module 103 among the plurality of LED security lights 10, And provides the vehicle wireless Internet service including the data service, the location-based service, the security service, and the traffic information through the data communication with the LED security light 10, Output unit.

The control monitoring application 41 transmits the streetlight remote control for the LED security light 10 and the automatic streetlight control signal using the sensor to each LED security light 10 before and after the handoff.

The plurality of LED security lights 10 utilize the LORA wireless network to provide Wi-Fi coverage and utilize the wireless infrastructure of U-city as a wireless infrastructure. In addition, It is possible not only to provide the Internet service to the pedestrian or the vehicle having the user terminal 40 but also to directly receive the control signal for the control such as the automatic security using the remote control and the sensor from the user terminal 40. [

3 is a block diagram schematically illustrating the configuration of an IoT device including a wireless dimming controller according to an embodiment of the present invention.

Referring to FIGS. 2 and 3, the LED security light 10, which is a single unit, is structurally structured such that the upper LED lighting frame 11 and the lower LED lighting security support 12 And an LED lighting 60 is installed in the upper LED lighting frame 11 and an IoT device 100 including a wireless dimming controller is installed in the security lighting post 12.

The IoT device 100 includes a microcontroller (MCU) 101 (hereinafter referred to as an "MCU") which is formed in a predetermined area of the LED security light support 12 and processes various functions such as information transmission, Humidity sensors, micro dust sensors, power failure and leakage detection sensors, ambient light sensors, water level sensors, door openness sensors, fire detection sensors and so on), road user sensors, power / voltage / current sensors, A LORA wireless network module 103, a GPS 104 and a dimming controller 105 such as LED security.

The sensor unit 102 includes a road user detection sensor, a power / voltage / current measurement sensor, a temperature / humidity sensor, an electric and electric leakage sensor, an illumination sensor, a water level sensor, 10, and detects the power, average voltage, power failure, short circuit, lighting and extinction, temperature and humidity of the streetlight, and provides the packetized streetlight information to the MCU 101.

In addition, the sensor unit 102 may further include a door opening sensor of the IoT device 100.

In another embodiment of the present invention, the sensor unit 102 may further include a fine dust sensor, a nitrogen dioxide sensor, and other air pollution sensors.

In particular, when the security light according to the present invention is installed in the mountainous area, the fire detection sensor can respond to a fire such as a fire by detecting smoke, flame and the like and transmitting it to the administrator or the citizen through the IoT object Internet.

The MCU 101 transmits and receives mutual streetlight information based on the LORA wireless network through data transmission / reception with the other LED security lights 10 through the LORA wireless network module 103.

The MCU 101 transmits security information and the like to the integrated management server 20 so that the integrated management server 20 enables remote control and monitoring of the LED security light 10 to be performed.

In addition, a real-time clock (RTC) can be provided for confirming the sunrise / sunset time based on the regional sunrise / sunset database.

Hereinafter, the wireless dimming controller 105 of the IoT device 100 according to an embodiment of the present invention will be described in detail.

As shown in FIG. 3, the dimming controller 105 adjusts the illuminance of the LED security light 10.

Specifically, the dimming controller 105 adjusts the brightness of the LED 60 of the LED security light 10 according to the change of ambient illuminance by bidirectional wireless communication, thereby inducing a smooth traffic flow. .

Meanwhile, the dimming controller 105 may include a constant current control unit 105a and a PWM control unit 105b.

The constant current control means 105a receives power from the power supply means and adjusts the current to be constant.

The PWM control means 105b controls the constant current controlled by the constant current control means 105a by a pulse width modulation method in which the width of the pulse is varied according to the magnitude of the modulation signal, ).

4, the integrated management server 20 includes a dimming data storage unit 20a for storing dimming control data set for each security or the like, or for a certain group of landmarks, An LED dimming setting unit 20b for setting dimming control for each pillar of a certain group, an LED information storage unit 20c for storing LED-related information used in a security lamp such as a rated voltage of each manufacturer of the LED, An LED lifetime analyzing unit 20d for calculating the rated power use time of the LED lighting based on the rated effective power (power consumption) and the rated power, and for analyzing the lifetime of the LED lighting, And further includes an LED active power storage 20e for receiving and storing.

The LORA base station transmits the dimming data transmitted from the integrated management server 20 via the LORA wireless network to the integrated management server 20 through the LORA wireless network and the LEDs in the IoT device 100 To the dimming controller 105.

The integrated management server 20 receives and stores information on LED lighting, such as the power rating data per manufacturer of the LED lighting applied to the security lamp. The integrated management server 20 sets a rated power threshold value based on the rated power data for each LED lighting and transmits it to the LED dimming controller.

As described above, according to the dimming control system such as LED security using the IoT-based LORA wireless network, it can also help solve the light pollution problem in the residential area. If exposed to more than necessary illumination, fatigue is increased due to sleeping disorders, decreased immunity, and the like. In the future, when a road lighting control system is installed in a residential area, the brightness of security and the like can be automatically adjusted, thereby reducing the light pollution damage.

In addition, the road lighting system using the Internet of objects is a system that can remotely control and monitor by wireless. It can quickly identify points of light, off state, and occurrence of faults, and if necessary, It is a real-time monitoring system that can issue the same command.

In addition, in order to be able to cope with an urgent situation promptly, a text message is automatically transmitted to a manager's computer monitor and a mobile phone to inform the security system of abnormality. In the place where the Internet is installed, And 24 hours management and monitoring system can be constructed.

On the other hand, generally nocturnal insects such as gall bladder and moth are attracted to light and have a habit of gathering. Even when lighting is performed in a lighting device implemented with an LED, insects are attracted to the displayed light and concentrated around the lighting device. Mosquitoes, moths, and worms concentrated in the vicinity of the lighting apparatus may enter the control unit of the lighting apparatus through the power cable insertion port, causing malfunction and malfunction of the control unit.

Accordingly, in an embodiment of the present invention, as shown in FIG. 5, a means for preventing malfunction and malfunction of the lighting apparatus due to inflow of worms is additionally provided.

According to an embodiment of the present invention, a chip for outputting a frequency at which worms are avoided may be mounted on a PCB of the IoT device 100, and the IoT device 100 may be mounted on a lower portion of the housing of the IoT device 100 at a wavelength of 590 to 700 nm An LED that emits the corresponding light is installed.

Since the IoT device 100 is always supplied with power for 24 hours, such an insect retraction function prevents the inflow of worms by the chip that outputs the frequency, and the inflow of insects .

FIG. 6 is a block diagram schematically illustrating an application example of a dimming control system such as an IOT-based LED security according to an exemplary embodiment of the present invention.

The LED security dimming control system using the IOT-based LORA wireless network according to the present invention enables remote monitoring and control using the IOT-based LORA wireless network, while using the LORA wireless network as the backbone of the communication network, LED security light 10 can be utilized as a U-city infrastructure by performing a wireless AP function.

For example, it performs air management functions to measure fine dust and transmit it in real time, water quality control function to control sewage monitoring automatically and remotely, life environment management function through CCTV crime prevention and location based transmission, Such as the provision of environmental information and the transmission of citizen report information through the bidirectional information sharing of the environment information.

On the other hand, the streetlight control is a unidirectional communication control system by a streetlight controller and a streetlight program which detects the night and daytime illumination and turns on and off.

The unidirectional communication streetlight control system includes a main control device for controlling the streetlight control system as a whole and generating a control signal by including the control signal in the area code, and a control unit for receiving the control signal of the main control device, A plurality of street lamp controllers for controlling the assigned street lamp apparatus, and a plurality of street lamp apparatuses, which are controlled by the street lamp controller to illuminate the street and are assigned unique numbers, respectively.

The conventional streetlight controller of the streetlight control system can control the streetlight device remotely, but it can not control the power saving by controlling the brightness of the streetlight device or can not check the state of the streetlight device remotely, thus waste of unnecessary time .

Accordingly, there is a demand for a remote dimming controllable streetlight system that can control the brightness of the streetlight according to the variation of the ambient illuminance to prevent power waste and reduce the maintenance cost by checking the streetlight device in real time.

Hereinafter, an IoT-based LED streetlight dimming control system according to an embodiment of the present invention will be described in detail with reference to FIG.

The IoT-based LED streetlight dimming control system of the present invention will be described in detail below using the LORA wireless network as an embodiment.

It should be understood by those skilled in the art that the IoT-based LED streetlight dimming control system of the present invention can be implemented using an NB-IoT wireless network, and a detailed description thereof will be omitted herein.

A LED street light dimming control system using an IoT-based wireless network according to an embodiment of the present invention includes: a plurality of LED street lamps; A local controller for controlling the plurality of LED streetlights; An IoT device installed in each of the street lamps for exchanging information with the local controller and controlling the respective streetlights according to individual or group control commands from the local controller; And an LED dimming setting unit for setting the dimming control to each LED street lamp or a certain group of LED street lamps, and controlling the local controller using the LORA wireless network to control the street lamps by groups and individually Management server; And an IoT-based wireless network base station connecting the local controller and the integrated management server in a bidirectional wireless communication manner, wherein remote control and monitoring of each LED streetlight is performed.

In the present invention, the local controller may include a microprocessor for processing various functions such as information transmission, information storage, and status display; An IoT-based wireless network module for communicating with the streetlight individual controller; A wireless communication unit for exchanging information with the control computer of the central control center; A display unit for displaying various measured values and communication states; A status display LED unit for displaying an operation state of the local controller; An external I / F unit for performing maintenance of the local controller according to an operation state of the local controller and updating corresponding data; A constant voltage supply unit for supplying power; And a monitoring and reset circuit monitoring the local controller and resetting the local controller according to the monitoring result.

Meanwhile, the IoT device is an IoT device provided in the dimming control system such as LED security using the IoT-based wireless network, and is a microprocessor for processing various functions such as streetlight information transmission, information storage, and status display; An IoT-based wireless network module for receiving a control command from a local controller; A current and voltage sensor for detecting an abnormal state of the streetlight; An A / D converter for converting an analog signal detected by the sensors into a digital signal and inputting the digital signal to the microprocessor; A constant voltage supply unit for supplying power; A monitoring and reset circuit for sensing the IoT device and resetting the IoT device according to a monitoring result; A relay driving circuit for receiving a control command through a wireless communication module / IoT-based wireless network module when an abnormal state occurs and driving a relay of a distribution panel according to a received control command to shut off the power of the corresponding street lamp; GPS; And an LED streetlight dimming controller.

As described above, a plurality of street lamps are connected to a line branched from the distribution panel of the street lamp. In a conventional street lamp monitoring and control system, if any one of the plurality of installed street lamps fails due to a short circuit or the like, However, the present invention is intended to improve the reliability and safety of the street lights by improving the existing problems.

Accordingly, in the streetlight remote monitoring and control system according to the present invention, as shown in FIG. 7, the local controller and the IoT device in the distribution panel are connected by low-power wireless communication using the LORA network, By connecting through the communication network, it is possible to remotely control the lighting of a plurality of street lamps through a local controller in the distribution panel by group and individually, thereby maintaining the system more efficiently and safely.

As described above, according to the present invention using the IoT-based wireless network communication method, when a failure occurs in any of the street lamps, only the street lamps having a failure are remotely blocked and separated, This is possible. The LORA network communication method eliminates the need for separate communication charges, and also enables group control and individual control in the conventional group control method, thereby improving reliability and safety.

In addition, the streetlight remote monitoring and control system of the present invention can brighten up to 100 m ahead in consideration of the traveling speed of the vehicle when the accessibility of the vehicle is detected while the brightness of the streetlight is lowered, It is designed to be lowered slowly. In the case of sidewalks, roads can be used without any inconvenience because the pedestrian standards are brightened both at the front and at the back.

Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other forms, and various omissions, substitutions, and alterations can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention described in claims and their equivalents.

10: LED street light / security light 20: Integrated management server
21: Control monitor module 22: Integrated management DB
30: LORA wireless network base station 40: user terminal
50: management / monitoring terminal 100: IoT device
101: Micro controller (MCU) 102: Sensor unit
103: LORA wireless network module 104: GPS
105: LED security light, etc. dimming controller 105a: Constant current control means
105b: PWM control means

Claims (11)

In a dimming control system such as LED security using an IoT-based wireless network,
A plurality of LED security lights (10);
An integrated management server 20 including a control monitor module 21 and an integrated management DB 22 for controlling each of the plurality of LED security devices or remote monitoring and controlling the plurality of LED security lights using a LORA wireless network ); And
And an IoT-based wireless network base station (30) in wireless communication with the plurality of LED security lights (10) and the integrated management server (20)
In each of the plurality of LED security lights 10,
An IoT device 100 including a dimming controller for LED security and the like 10 is installed to transmit and receive information such as security to each other using IoT based wireless network technology,
Wherein the integrated management server (20) and the IoT device (100) remote control and monitor each LED security light (10). The method according to claim 1,
The integrated management server (20)
A dimming data storage unit 20a for storing dimming control data set for each of the LED security lamps and the like or a certain group of LED security lamps;
An LED dimming setting unit 20b for setting dimming control to each of the LED security lights or the like, or a certain group of LED security lights;
An LED information storage unit 20c for storing LED-related information used for the LED security lamp such as the rated voltage of the manufacturer of the LED;
An LED lifetime analyzing unit 20d for calculating the rated power use time of the LED lighting based on the active power and the rated power of each of the LED security lights to analyze lifetime of the LED lighting; And
And an LED active power storage unit (20e) for receiving and storing active power data transmitted to each of the LED security lamps. The method according to claim 1,
The IoT device 100 is installed in a predetermined area of the column 12,
A microcontroller (MCU) 101 for processing various functions such as information transmission, information storage, and status display;
A sensor unit including a road user detection sensor, a power / voltage / current measurement sensor, a temperature / humidity sensor, a fine dust sensor, a power failure and leakage detection sensor, an illumination sensor, a water level sensor, 102);
Insect inflow preventing means;
An IoT-based wireless network module 103;
GPS 104; And
LED security, etc., a dimming controller (105). The method of claim 3,
The dimming controller (105)
A constant current control means (105a) which receives power from a power supply means and regulates the current so as to be kept constant; And
And PWM control means (105b) for controlling the brightness of the LED by controlling the constant current controlled by the constant current control means (105a) by pulse width modulation (Pulse Width Modulation) system. The method according to claim 1,
The control monitoring app 40a is a vehicle terminal mounted on a vehicle or a mobile terminal carried by a pedestrian walking on a road where the plurality of LED security lamps 10 are installed and wirelessly communicating with the plurality of LED security lamps 10 Further comprising a user terminal (40) installed and driven,
And provides a vehicle wireless Internet service including a data service, a location-based service, a crime prevention service, and traffic information through data communication between each LED security light 10 and the user terminal 40. [ Control system. 6. The method according to any one of claims 1 to 5,
Wherein the IoT-based wireless network is a LORA or NB-IOT wireless network. An LED street light dimming control system using an IoT-based wireless network,
A plurality of LED street lamps;
A local controller for controlling the plurality of LED streetlights;
An IoT device installed in each of the street lamps for exchanging information with the local controller and controlling the respective streetlights according to individual or group control commands from the local controller;
A dimming data storage unit, and an LED dimming setting unit for setting dimming control to each LED street lamp or a certain group of LED street lamps, and controlling the local controller using the IoT-based wireless network to control the street lamps by group and individual control An integrated management server; And
And an IoT-based wireless network base station connecting the local controller and the integrated management server in two-way wireless communication. 8. The method of claim 7,
The local controller comprising:
A microprocessor for processing various functions such as information transmission, information storage, and status display;
An IoT-based wireless network module communicating with the IoT device;
A wireless communication unit for exchanging information with the control computer of the integrated management server;
A display unit for displaying various measured values and communication states;
A status display LED unit for displaying an operation state of the local controller;
An external I / F unit for performing maintenance of the local controller according to an operation state of the local controller and updating corresponding data;
A constant voltage supply unit for supplying power; And
And a monitoring and reset circuit monitoring the local controller and resetting the local controller according to a monitoring result. 8. The method of claim 7,
The IoT device includes:
A microprocessor for processing various functions such as streetlight information transmission, information storage, and status display; An IoT-based wireless network module for receiving a control command from a local controller;
A current and voltage sensor for detecting an abnormal state of the streetlight;
An A / D converter for converting an analog signal sensed by the sensors into a digital signal and inputting the digital signal to a microprocessor;
A constant voltage supply unit for supplying power;
A monitoring and reset circuit for sensing the IoT device and resetting the IoT device according to a monitoring result;
A relay driving circuit which receives a control command through a wireless communication module / IoT-based wireless network module when an abnormal state occurs and drives a relay of a local controller according to a received control command to cut off the power of the corresponding street lamp;
GPS; And
LED street light dimming controller. 10. The method of claim 9,
The IoT device includes:
A sensor unit including a road user detection sensor, a power / voltage / current measurement sensor, a temperature / humidity sensor, a fine dust detection sensor, a power failure and leakage detection sensor, an illumination sensor, a water level sensor, a door open sensor, and a fire detection sensor; And
Further comprising: means for preventing entry of the LED lamp. 11. The method according to any one of claims 7 to 10,
Wherein the IoT-based wireless network is a LORA or NB-IoT wireless network.

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