KR102060572B1 - DIMMING CONTROL SYSTEM OF LED STREETLIGHT AND SECURITY LIGHT BASED ON IoT - Google Patents

Abstract

The present invention relates to an IoT-based LED street light / security lamp dimming control system, a plurality of LED street lights and security lights (10); An integrated management server 20 for remotely monitoring and controlling the plurality of LED street lights and security lights using an IoT-based wireless network; And a LORA or NB-IoT wireless network base station 30 for wireless communication with the plurality of LED street lights and security lights 10 and an integrated management server 20. The plurality of LED street lights and security lights 10 include; Each IoT device 100 including a dimming controller for transmitting and receiving street light / security light information between each other using IoT-based wireless network technology, and adjusts the illumination of each LED street light and security light 10 is installed, Remote control and monitoring of each LED street light 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 network, it is possible to induce smooth traffic flow by controlling the LED brightness of the street lamps and security light fixtures according to the change in the ambient illumination, and to prevent power waste by power saving operation. Maintenance cost can be reduced by checking LED status of street lamp and security light fixture in real time.

Description

IoT-based LED street light and security light dimming control system {DIMMING CONTROL SYSTEM OF LED STREETLIGHT AND SECURITY LIGHT BASED ON IoT}

The present invention relates to a dimming control system for an IoT-based LED street light / security lamp, and more particularly, using an IoT device and an IoT-based wireless network as a communication network backbone to adjust LED brightness of a street lamp / security lamp apparatus according to a change in ambient illumination. IoT-based LED street light / including a dimming controller to induce smooth traffic flow and prevent power wastage by power saving operation, and to reduce maintenance costs by checking the LED status of the street lamp / security light fixture in real time It relates to a dimming control system such as security.

The term Internet of Things (IoT) first appeared in 1998 at the Massachusetts Institute of Technology (MIT) 's Auto-ID Lab. Later, in 2005, the ITU-T published the annual report 'The Internet of Things', foretelling that the Internet of Things would be the most basic framework for all the structures of the future information technology (IT) industrial revolution. The report defined the Internet of Things as "a new telecommunications infrastructure that connects all things in the world to networks, enabling humans and things to communicate with each other anytime, anywhere."

The Internet of Things means that devices connected to a network can smartly send and receive information with each other without human intervention. The notion that things communicate without being dependent on humans is similar to ubiquitous or machine to machine (M2M). M2M only focuses on the concept of communication between devices, but refers to a technology that extends it to the Internet to interact with all information.

Specifically, in order to implement the IoT, a sensor for obtaining information in a surrounding environment, a communication network network supporting connection to a network, and a service interface technology for processing, processing, and processing information according to service fields and forms are required. In addition, security techniques to protect the collected data leakage and control of the device are also important.

In order to spread the Internet of Things, a suitable network is needed. In general, the Wi-Fi networks we use at home are not bad as wireless networks. However, due to its large bandwidth, it consumes a lot of data, but consumes a lot of power and has a short signal reach.

The Internet of Things is a technology or environment that attaches sensors to things and sends data to the Internet in real time. Devices connected to the Internet can send and receive information directly, without the help of humans. In the past, technologies such as Bluetooth and near field communication (NFC) were used. However, Bluetooth, short-range wireless communication (NFC), etc. were able to communicate only in the short distance, and had to be linked with a separate wired / wireless internet.

For this reason, there has been a movement to define and install a dedicated network optimized for IoT devices. IoT-only technologies include LTE-M and NB-IoT in licensed bands, Sigfox (SIGFOX) and Laura (LORA) in unlicensed bands.

The Internet of Small Things, created by low-power, long-range wireless communications, is a network of things that delivers data to batteries without the need for power.

LORA is a technology that connects various things to a network using LTE. LORA can share all infrastructure information within LTE coverage.

LORA is simpler than LTE-M. The protocol is performed between the device and the network server, and the base station simply transfers the radio received packet to the backhaul interval. As such, the base station equipment and terminal structure is simple.

LORA has wide signal coverage area, low frequency interference and high security, making it easy to spread. In addition, it is a low-cost, low-power, low-capacity transmission technology capable of operating only a battery without the need for a small amount of data transmission and constant power supply.

NB-IoT is a low-power wide-area Internet of Things (IoT) technology using LTE frequency, and is used for tracking, sensing, and metering of intermittent low-capacity data. Specifically, for example, water, gas, electricity metering, air and water quality measurement system, location tracking service (location tracking of the elderly, pet management, prevention of bicycle loss), fire, harmful substances, gas, etc. It is used for control services such as sensing services, building automation, home automation, and amusement park management. NB-IoT is extremely low power, so it can be used without replacing the battery for a long time.

Since the objects with sensors are connected to the LTE network, the user can remotely control the objects anytime and anywhere. In particular, it can be implemented as a software upgrade instead of building a separate device, which is less expensive than conventional IoT networks such as Zegbee.

On the other hand, with the exponential growth of LED lighting, various integrated circuit devices for supplying the regulated power to the LEDs are emerging one after another. Power-consuming direct current-type current sources have long been the standard, but are now naturally replaced by switched-mode LED drivers, where energy issues are a serious issue.

Currently, precise control of constant current is required in a wide range of applications, from flashlights to billboards in stadiums, and in most cases it is necessary to adjust the LED output intensity every time. This function is called dimming control, and various dimming control methods have been developed.

In addition, it is a trend to adopt LED lighting that saves power consumption in street lights and security. In particular, street lamps and security lamps employing LED lighting is generally poor installation environment, the rated power of the set LED lighting is not used correctly. LED lighting used in street lamps and security lamps is characterized by a very flexible power consumption of 180 ~ 240W depending on the supply voltage. Failure to use an LED light at the rated power rating may affect the life of the LED light if it is repeated for a long time.

As a control system of LED lighting using wireless communication, Korean Patent Publication No. 10-1306762 discloses a wireless communication based LED lighting control system and method thereof.

The document includes a control computer having a communication means of an internet network, a Zigbee gateway connected to the control computer and a mobile communication network or an internet network, and including a Zigbee wireless communication means, and a Zigbee gateway and a Zigbee wireless communication. And at least one LED dimming controller connected, wherein the control computer sets a rated power threshold of the LED light and transmits it to the at least one LED dimming controller through the ZigBee gateway, and the at least one LED dimming controller. Receives the rated power threshold value and performs the dimming control of the LED light by using it as a dimming reference power value, by measuring the current active power of the LED light in the LED dimming controller to compare with the dimming reference power value If there is a match, the data of the measured active power value 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 ZigBee wireless communication of the above document, ZigBee wireless communication is determined by the maximum output of the distance constrained communication technology, it is necessary to integrate with the wire to extend the distance, it is impossible to provide additional services.

Therefore, by building a road lighting system using the Internet of Things, attaching sensors to detect road users for each landlord, and connecting the landlord and the server through a communication network, there is no road user. It is necessary to adjust the brightness automatically.

On the other hand, a one-way communication control system by a street lamp controller and a street lamp program that detects the illumination of the night and day, and point-off the light is common.

The unidirectional communication street light control system controls the street light control system as a whole. For this purpose, the main control unit generates a control signal by including it in the area code, and the area code included in the control signal received by receiving the control signal of the main control unit. If it corresponds to a predetermined area code, a plurality of street light controllers for controlling the assigned street light fixtures, and a plurality of street light fixtures controlled by the street light controller to illuminate the street, each assigned a unique number.

The streetlight controller of the conventional streetlight control system can remotely control the streetlight mechanism, but can not control power saving by controlling the brightness of the streetlight mechanism or remotely check the state of the streetlight mechanism, thus wasting unnecessary time due to the status of the streetlight. There was.

Therefore, there is a need for a remote dimming control street light system that can control the brightness of the street lamp in accordance with the change in ambient illumination to prevent power wastage and reduce the maintenance cost by checking the street lamp mechanism in real time.

The present invention is to overcome the above-mentioned conventional problems, using the IoT device and the LORA or NB-IoT wireless network as the backbone of the network to adjust the LED brightness of the street lamp / security light fixture according to the change in the ambient light, smooth power saving operation It is to provide an IoT-based LED street light / security light dimming control system that includes a dimming controller that can prevent power waste by reducing the maintenance cost by checking the LED state of the security light fixture in real time.

Another object of the present invention is to use an IoT device and a LORA or NB-IoT wireless network to check the status of the LED street light / security lamp in real time to reduce the maintenance cost of the IoT-based LED street light / security lamp dimming control system To provide.

In addition, the present invention not only provides a wireless remote monitoring and control solution for the LED street light / security light utilizing the IoT-based LED street light dimming control system, but also used power, voltage, current, whether the LED street light / security light, whether or not, temperature To provide a dimming control system for IoT-based LED streetlights / security lamps using status information such as basic streetlights / security lamps such as humidity and humidity.

In addition, the present invention is to prevent the introduction of bugs into the IoT device.

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

In order to achieve the above object, the LED security light dimming control system using an IoT-based wireless network according to an embodiment of the present invention comprises a plurality of LED security lights; An integrated management server including a control monitor module and an integrated management DB and controlling each of the plurality of LED security lights or remotely monitoring and controlling the plurality of LED security lights using an IoT-based wireless network; And an IoT-based wireless network base station wirelessly communicating with the plurality of LED security lights and an integrated management server, wherein each of the plurality of LED security lights transmits and receives security light information to each other using an IoT-based wireless network technology. , An IoT device including a dimming controller for an LED security lamp is installed, and remote control and monitoring of each LED security lamp is performed by the integrated management server and the IoT device.

According to an embodiment of the present invention, the integrated management server, a dimming data storage unit for storing the dimming control data set in each of the LED security light, or a certain group of LED security light; An LED dimming setting unit for setting dimming control to each of the LED security lights or a certain group of LED security lights; An LED information storage unit for storing LED-related information used in the LED security light such as rated voltage of each manufacturer of the LED; An LED lifespan analysis unit for analyzing the lifespan of the LED light by calculating the rated power use time of the LED light based on the active power and the rated power of each LED security light; 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 is installed in a predetermined area of the LED security lamp holding, a microcontroller (MCU) for processing all functions such as information transmission, information storage, 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 an electric leakage detection sensor, an illuminance sensor, a water level detection sensor, a door open detection sensor, and a fire detection sensor; Worm inflow prevention means; IoT based wireless network module; GPS; And a dimming controller for the LED security light.

Preferably, the dimming controller comprises: constant current control means for controlling to maintain a constant current by receiving power from a power supply means; And PWM control means for controlling the brightness of the LED by controlling the constant current regulated by the constant current control means by a pulse width modulation method.

According to an embodiment of the present invention, a wireless communication with the plurality of LED security lights and a mobile terminal carried by a pedestrian walking on a road on which the plurality of LED security lights are installed, or a vehicle terminal mounted on a vehicle, a control monitoring app is installed It further comprises a user terminal driven, and provides a vehicle wireless Internet service including data services, location-based services, security services, traffic information through each LED security light and data communication of 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 lights; A local controller controlling the plurality of LED street lights; An IoT device installed in each street lamp and performing a function of exchanging information with a local controller and controlling each street lamp according to an individual or group control command from the local controller; Dimming data storage unit and LED dimming setting unit for setting the dimming control to each LED street light or a predetermined group of LED street lights, and to control the local controller by using an IoT-based wireless network to control the street lamp by group and individual Integrated management server; And an IoT-based wireless network base station connecting two-way wireless communication between the local controller and the integrated management server.

Advantageously, the local controller further comprises: a microprocessor for processing all the functions of information transfer, information storage, status display, etc .; An IoT based wireless network module for communicating with the IoT device; A wireless communication unit for exchanging information with a control computer of the integrated management server; A display unit for displaying various measurement values and communication states; A status display LED unit for displaying an operation state of the local controller; An external I / F unit performing maintenance of the local controller and updating corresponding data according to an operation state of the local controller; A constant voltage supply unit for supplying power; And a monitoring and reset circuit for 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 streetlight dimming control system using an IoT-based wireless network, a microprocessor for processing all functions such as street light information transmission, information storage, 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 street light; An A / D converter for converting the analog signals sensed by the sensors into digital signals and inputting them to a microprocessor; A constant voltage supply unit for supplying power; A monitoring and resetting circuit for detecting the IoT device and resetting the IoT device according to a monitoring result; A relay driving circuit configured to receive a control command through a wireless communication unit / IoT-based wireless network module when an abnormal state occurs and to drive a relay of a local controller according to the received control command to cut off a power of a corresponding street light; GPS; And an LED street light dimming controller.

In addition, according to an embodiment of the present invention, the IoT device of the LED streetlight dimming control system using an IoT-based wireless network is a road user detection sensor, power / voltage / current measurement sensor, temperature / humidity sensor, fine dust detection sensor, power failure And a sensor unit including an earth leakage sensor, an illumination sensor, a water level sensor, a door open sensor, and a fire sensor. And worm inflow prevention means.

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

As described above, according to the IoT-based LED street light / security lamp dimming control system according to the present invention, using the IoT device and the IoT-based wireless network as the communication network backbone, the LED brightness of the street light / security light fixture is adjusted according to the change of ambient illumination. It can induce smooth traffic flow, prevent power waste by power saving operation, and reduce maintenance cost by checking LED status of street lamp / security light fixture in real time.

In addition, it provides wireless remote monitoring and control solution for LED street light / security light using IoT-based LED street light / security light dimming control system, as well as the power, voltage, current, lighting / off status, temperature of LED street light / security light. Provides the effect of using basic streetlight status information such as humidity and humidity.

In addition, it can provide additional services using additional sensors (air pollution sensors such as fine dust, nitrogen dioxide and temperature / humidity, water level, door opening detection, fire detection sensor, etc.) to the LED street light / security.

Figure 1 (a) is a schematic block diagram of an IoT-based LED security light dimming control system according to an embodiment of the present invention, (b) is a schematic diagram of a system in which each IoT-based LED security light is connected to a LORA network In block diagram.
FIG. 2 is a diagram illustrating a configuration of an LED security lamp, an IoT device, integrated server management, and a user terminal in the IoT-based LED security lamp dimming control system of FIG. 1.
3 is a block diagram schematically illustrating a 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 a configuration of integrated server management in the dimming control system of the IoT-based LED security light of FIG.
5 is a perspective view showing a configuration of preventing insects in accordance with an embodiment of the present invention.
FIG. 6 is a block diagram schematically illustrating an application example of an IoT-based LED security lamp dimming control system according to an exemplary embodiment of the present invention.
7 is a schematic block diagram of an IoT-based LED street light dimming control system according to another embodiment of the present invention.

Exemplary embodiments of the invention will be described below with reference to the accompanying drawings. On the other hand, in the drawings and detailed description showing and referring to the configuration and operation easily known to those skilled in the art will be briefly or omitted. In particular, in the drawings and detailed description of the drawings, detailed descriptions and illustrations of specific technical configurations and operations of elements not directly related to technical features of the present invention are omitted, and only the technical configurations related to the present invention are briefly shown or described. It was. The specific constructions and functions described in detail herein are not limiting, but are merely described as a basis for teaching the claims and as a basis for teaching those skilled in the art to variously practice the present invention.

As used herein, the term "module" may mean a functional and structural combination of hardware for performing the technical idea of the present invention and software for driving the hardware. For example, a module may mean a logical unit of a predetermined code and a hardware resource for performing the predetermined code, and means a code that is not necessarily physically connected or does not mean a kind of hardware. It can be easily inferred by the average expert in the art.

The present invention describes an IoT-based LED security lamp dimming control system applied to the LED security light fixture, but is not limited to this, IoT-based streetlight dimming control system of the present invention can be applied to LED streetlight fixtures.

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

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

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

Figure 1 (a) is a schematic block diagram of an IoT-based LED security light dimming control system according to an embodiment of the present invention, (b) is a schematic diagram of a system in which each IoT-based LED security light is connected to a LORA network 2 is a block diagram illustrating the configuration of an LED security light, an IoT device, integrated server management, and a user terminal in the dimming control system of the IoT-based LED security light of FIG. 1.

As shown in Figure 1 (a), (b) and 2, the IoT-based LED security light dimming control system using a LORA wireless network is a plurality of LED security lights 10, integrated management server 20, LORA A wireless network base station 30, a user terminal 40, and a management / monitoring terminal 50.

The plurality of LED security lights 10 transmits and receives streetlight information between each other using a LORA wireless network technology, and finally transmits the security light information to the integrated management server 20, and thus, the LED security lights by the integrated management server 20. Remote control and monitoring for 10 is performed.

The integrated management server 20 receives the current, power, average voltage, power outage, short circuit, light on and off, temperature, humidity, etc. of each LED security light 10 as security light information, security light point / light off state And it detects the short-circuit and failure situation in real time and copes quickly.

In addition, the integrated management server 20 not only saves energy by controlling the lighting and extinguishing time of each LED security light 10 based on security light information, but also inconveniences to residents due to failure of each LED security light 10. Eliminate and prevent accidents.

On the other hand, the management / monitoring terminal 50 is a mobile terminal possessed by the field engineer, by receiving the street light information from the integrated management server 20, a plurality of fields by the field engineer as well as the integrated management server 20 which is the management center Enable direct control and monitoring of the LED security light (10).

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

As used herein, the term "DB" may refer to a functional 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 Database Management System (DBMS) for searching, storing, and managing information stored in the database.

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

In addition, the control monitoring module 21 is a mobile terminal possessed by the field engineer, by transmitting the street light information for at least one or more LED security light 10 stored in the integrated management DB 22 to the LORA wireless network base station, the management center In addition to the integrated management server 20, to enable the direct control and monitoring of the plurality of LED security lights 10 by the field engineer.

The user terminal 40 is a vehicle terminal mounted on a mobile terminal or a vehicle carried by a pedestrian on a road on which a plurality of LED security lights 10 are installed, and is a terminal on which a control monitoring app 41 is installed and driven. The control monitoring app 41 establishes 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 then moves according to the position movement. Performs hand-off and is provided with a vehicle wireless Internet service including data service, location-based service, security service, and traffic information through data communication with the LED security light 10 of the user terminal 40. Implement as output

The control monitoring app 41 transmits an automatic street light control signal utilizing a street light remote control and a sensor for the LED security light 10 to each LED security light 10 before and after the handoff.

The plurality of LED security lights 10 provides Wi-Fi coverage by utilizing a LORA wireless network, thereby utilizing U-city as a wireless infrastructure, and using a wireless service including data services, location-based services, security services, and traffic information. In addition to providing an Internet service to a pedestrian or a vehicle having the user terminal 40, a control signal for remote control of a security light and an automatic security light control using a sensor may be directly received from the user terminal 40.

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

Referring to FIG. 2 and FIG. 3, the LED security light 10, which is a unit, will be described in detail. The LED light frame 11 and the LED security light post 12 of the lower part may be mechanically described. The LED lighting frame 11 is separated and the upper LED lighting frame 11 is installed, the security lamp post 12 is installed IoT device 100 including a wireless dimming controller.

The IoT device 100 is formed in a predetermined area of the LED security lamp post 12 and is a microcontroller (MCU) 101 (hereinafter referred to as "MCU") that processes various functions such as information transmission, information storage, and status display. ), Road user detection sensor, power / voltage / current measurement sensor, temperature / humidity sensor, fine dust detection sensor, power failure and leakage detection sensor, illuminance sensor, water level detection sensor, door open detection sensor, fire detection sensor, etc. And a sensor unit 102, a LORA wireless network module 103, a GPS 104, and a dimming controller 105 such as an LED security lamp.

The sensor unit 102 includes road user detection sensors, power / voltage / current measurement sensors, temperature / humidity sensors, power failure and short circuit detection sensors, illuminance sensors, water level detection sensors, fire detection sensors, and the like. 10) detects the used power, average voltage, power outage, short circuit, light on and off, temperature, humidity and the like to generate a packetized street light information to the MCU (101).

In addition, the sensor unit 102 may further include a door open detection 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 sensor.

In particular, when the security light according to the present invention is installed in a mountainous area, the fire detection sensor can quickly respond to a fire such as a forest fire by detecting smoke, flames and the like transmitted to the IoT or IoT to the administrator or citizens.

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

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

In addition, a real-time clock (RTC) for checking the sunrise / sunset time may be provided based on a local 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.

In detail, the dimming controller 105 may induce smooth traffic flow by adjusting the brightness of the LED 60 of the LED security light 10 according to a change in ambient illumination by bidirectional wireless communication, and waste power by power saving operation. It can prevent.

The dimming controller 105 may include a constant current control means 105a and a PWM control means 105b.

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

The PWM control means 105b controls the constant current controlled by the constant current control means 105a by using a pulse width modulation method in which the width of the pulse is modulated by changing the width of the pulse according to the magnitude of the modulation signal. Adjust the brightness of).

On the other hand, as shown in Figure 4, the integrated management server 20 is a dimming data storage unit 20a for storing the dimming control data is set for each of the posts, such as security or a certain group of posts, by each of the security posts or LED dimming setting unit 20b for setting the dimming control by a certain group of struts, LED information storage unit 20c for storing the LED-related information used for security lights, such as the rated voltage of each LED manufacturer, struts such as the security Based on the active power (power consumption) and the rated power, the LED life analysis unit 20d for calculating the life time of the LED light by calculating the rated power usage time of the LED light, and the active power data transmitted for each post of the street lamp It further includes an LED active power storage unit 20e for receiving and storing.

The LORA base station is connected to the integrated management server 20 through the LORA wireless network and the dimming data transmitted from the integrated management server 20 via the LORA wireless network via the LED device in the IoT device 100 installed in the security lamp holding Transmit to the dimming controller 105.

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

As described above, according to the dimming control system of the LED security light using the IoT-based LORA wireless network, it can help to solve the residential light pollution problem. When exposed to more than necessary light, you may experience fatigue due to sleep disorders and reduced immunity. In the future, when road lighting control system is installed in residential area, the brightness of security light is automatically adjusted to reduce the damage of light pollution.

In addition, the road lighting system using the Internet of Things is a system that can be remotely controlled and monitored wirelessly, and it is possible to quickly grasp the status of the lights, lights, failures, etc. It is a real-time surveillance system that can issue the same commands.

In addition, the system automatically sends text messages to the administrator's computer monitor and mobile phone to prompt the user in case of an emergency, and informs them of any security problems.If the internet is installed, the central control system service is not restricted by area or distance. As it can be monitored, it has the advantage of establishing a 24-hour management and monitoring system.

On the other hand, insects such as the nocturnal mayfly and moths are generally attracted to the light and have a habit of gathering. In the lighting device implemented by the LED, the insects are attracted to the emitted light and are concentrated around the lighting device. Mosquitoes, moths and insects concentrated around the lighting device may enter the control unit of the lighting device through the power cable insertion hole and cause the control unit to malfunction and malfunction.

Accordingly, in one embodiment of the present invention, as shown in Figure 5, further includes a means for preventing the failure and malfunction of the lighting device due to the influx of worms.

According to an embodiment of the present invention, a chip is mounted on a PCB of the IoT device 100 to output a frequency avoided by worms, and a cable installation hole 111 is formed in the housing 110 of the IoT device 100. In the lower part, the LED 114 which emits light corresponding to the wavelength of 590-700 nm which insects avoid is installed.

Since the insect retirement function is always 24 hours dedicated power supply to the IoT device 100, the influx of worms is prevented by the chip that outputs the frequency, and at night the influx of worms by using the LED having the wavelength is prevented It can prevent.

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

The LED security light 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 and simultaneously uses the LORA wireless network as a backbone of the communication network. LED security light 10 of the wireless AP (Access Point) by performing the function can be utilized as the infrastructure of the U-city.

For example, air quality management function to measure and transmit fine dust in real time, water quality management function to automatically control and remotely control sewage monitoring, and to manage living environment through CCTV security and location-based transmission, It can perform environmental information sharing functions such as providing environmental information and transmitting citizen report information through two-way information sharing.

On the other hand, street light control is a one-way communication control system by a street lamp controller and a street lamp program that detects the illumination of the day and night and point-off.

The one-way communication street light control system controls the street light control system as a whole. For this purpose, the main control device generates a control signal by including it in an area code, and an area included in the received control signal by receiving the control signal of the main control device. If the number corresponds to a preset area code, the streetlight controller includes a plurality of streetlight controllers for controlling the assigned streetlight mechanisms, and a plurality of streetlight apparatuses controlled by the streetlight controllers to illuminate the streets, each of which is assigned a unique number.

The streetlight controller of the conventional streetlight control system can remotely control the streetlight mechanism, but can not control power saving by controlling the brightness of the streetlight mechanism or remotely check the state of the streetlight mechanism, thus wasting unnecessary time due to the status of the streetlight. There was.

Therefore, there is a need for a remote dimming control street light system that can control the brightness of the street lamp in accordance with the change in ambient illumination to prevent power wastage and reduce the maintenance cost by checking the street lamp mechanism in real time.

Hereinafter, an IoT-based LED street light dimming control system according to an embodiment of the present invention will be described in detail with reference to FIG. 7.

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

Meanwhile, those skilled in the art should understand that the IoT-based LED street light dimming control system of the present invention can be implemented using an NB-IoT wireless network, and a detailed description thereof will be omitted.

An LED street light dimming control system using an IoT-based wireless network according to an embodiment of the present invention, comprising: a plurality of LED street lights; A local controller controlling the plurality of LED street lights; An IoT device installed in each street lamp and performing a function of exchanging information with a local controller and controlling each street lamp according to an individual or group control command from the local controller; Dimming data storage unit, LED dimming setting unit for setting the dimming control to each LED street light or a certain group of LED street light, and integrated to control the street lamp by group and individual control by controlling the local controller using a LORA wireless network Management server; And an IoT-based wireless network base station connecting two-way wireless communication between the local controller and the integrated management server, and remote control and monitoring of each LED street light is performed.

In the present invention, the local controller includes a microprocessor for processing various functions such as information transmission, information storage, status display, and the like; An IoT-based wireless network module for communicating with the streetlight individual controller; A wireless communication unit for exchanging information with a 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 and updating corresponding data according to an operation state of the local controller; A constant voltage supply unit for supplying power; And a monitoring and reset circuit for monitoring the local controller and resetting the local controller according to the monitoring result.

On the other hand, the IoT device is an IoT device provided in the dimming control system, such as LED security using the above-described IoT-based wireless network, a microprocessor for processing all functions such as street light information transmission, information storage, 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 street light; An A / D converter for converting analog signals sensed by these sensors into digital signals and inputting them to a microprocessor; A constant voltage supply unit for supplying power; A monitoring and resetting circuit for detecting 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 unit / IoT-based wireless network module when an abnormal state occurs and driving a relay of a distribution panel according to the received control command to cut off power of a corresponding street light; GPS; And an LED street light dimming controller.

As described above, a plurality of street lights are connected to a line branched from a distribution panel, and a conventional street light monitoring control system may block an entire street light if any one of the plurality of installed street lights fails due to a short circuit. Although the structure, the present invention is to improve the problems of the existing method to be able to control the streetlight group or individually, and to increase the reliability and safety.

Accordingly, the street lamp remote monitoring control system according to the present invention, as shown in Figure 7, the local controller and the IoT device in the distribution panel is connected by low-power wireless communication using the LORA network, and the two-way wireless communication with the local controller and the integrated management server By being connected through a communication network, it is possible to remotely control the lighting of a plurality of street lamps by group and individually through a local controller in a distribution panel, 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 one of the street lamps, only the failed street lamp is remotely disconnected and separated so that the function of the entire street lamp except the broken street lamp operates normally. This is possible. When using the LORA network communication method, a separate communication fee is not required, and the control of the street lamp is also possible in the group control method and the individual control in the conventional group control method, thereby increasing reliability and safety.

In addition, the streetlight remote monitoring control system of the present invention, if the approach of the vehicle is detected in the state of lowering the streetlight brightness in the case of the roadway, the vehicle is adjusted to 100m ahead in consideration of the traveling speed of the vehicle, and if the vehicle passes and there is no subsequent vehicle, the brightness is again It is designed to be lowered slowly, and in the case of sidewalks, the front and back of the pedestrian standard can be brightened at the same time so that the road can be used without any inconvenience. In addition, in an embodiment of the present invention, referring to the description of FIG. 5, the insect inflow preventing means for preventing the failure and malfunction of the lighting device due to the influx of the insect.

While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and its modifications are included in the scope and spirit of the invention, and are included in the invention and the equivalent scope of the claims.

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: microcontroller (MCU) 102: sensor unit
103: LORA wireless network module 104: GPS
105: LED security light dimming controller 105a: constant current control means
105b: PWM control means

Claims (11)

In the dimming control system, such as LED security using 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 and controlling each of the plurality of LED security lights or remotely monitoring and controlling the plurality of LED security lights using a LORA wireless network. ); And
Includes; IoT-based wireless network base station 30 in wireless communication with the plurality of LED security light 10 and the integrated management server 20,
Each of the plurality of LED security lights 10,
The IoT-based wireless network technology transmits and receives security light information between each other, and the IoT device 100 including the LED security light 10 and a dimming controller is installed.
Remote control and monitoring of each LED security light 10 is performed by the integrated management server 20 and the IoT device 100,
The IoT device 100 is installed in a predetermined area of the LED security light post 12,
A microcontroller (MCU) 101 which processes all functions of information transmission, information storage and status display;
Sensor unit including road user detection sensor, power / voltage / current measurement sensor, temperature / humidity sensor, fine dust detection sensor, power failure and leakage detection sensor, illuminance sensor, water level detection sensor, door open sensor, fire detection sensor ( 102);
Worm inflow prevention means;
IoT based wireless network module 103;
GPS 104; And
Including the LED security light dimming controller 105,
The worm inflow prevention means is mounted on the PCB of the IoT device 100, the chip outputting the frequency avoided by the worm, the lower portion of the housing 110 of the IoT device 100, the cable installation hole 111 is formed LED dimming control system, characterized in that comprises a configuration provided with an LED 114 for emitting light corresponding to a wavelength of 590 ~ 700nm that bugs avoid. The method of claim 1,
The integrated management server 20,
A dimming data storage unit 20a for storing dimming control data set in each of the LED security lights or a group of LED security lights;
An LED dimming setting unit 20b for setting dimming control to each of the LED security lights or a group of LED security lights;
LED information storage unit 20c for storing the LED-related information used in the LED security lamp of the manufacturer-specific rated voltage of the LED;
An LED life analysis unit 20d for analyzing the life of the LED light by calculating a rated power use time of the LED light based on the active power and the rated power of each LED security light; And
LED dimming control system further comprises an LED active power storage unit (20e) for receiving and storing the active power data transmitted to each of the LED security lights. delete The method of claim 1,
The dimming controller 105,
Constant current control means (105a) adapted to receive power from the power supply means and to maintain a constant current; And
LED dimming control including a PWM control means (105b) for controlling the brightness of the LED by controlling the constant current adjusted by the constant current control means 105a in a pulse width modulation (Puls Width Modulation) method system. The method of claim 1,
As a mobile terminal or a vehicle terminal mounted on a vehicle, which is wirelessly communicated with the plurality of LED security lights 10 and pedestrians walking on a road on which the plurality of LED security lights 10 are installed, the control monitoring app 40a It further comprises a user terminal 40 is installed and driven,
Dimming LED security light, characterized in that to provide a vehicle wireless Internet service including data services, location-based services, security services, traffic information through the data communication between each of the LED security light 10 and the user terminal 40 Control system. The method according to any one of claims 1, 2, 4 and 5,
The IoT-based wireless network is an LED security light dimming control system, characterized in that LORA or NB-IoT wireless network. In the LED street light dimming control system using an IoT-based wireless network,
A plurality of LED street lights;
A local controller controlling the plurality of LED street lights;
An IoT device installed in each street lamp and performing a function of exchanging information with a local controller and controlling each street lamp according to an individual or group control command from the local controller;
Dimming data storage unit, and LED dimming setting unit for setting the dimming control to each LED street light or a predetermined group of LED street light, and controls the local controller by using an IoT-based wireless network to control the street lamp by group and individual Integrated management server; And
It comprises an IoT-based wireless network base station for connecting the local controller and the integrated management server two-way wireless communication,
The IoT device,
A microprocessor for handling all functions of street light 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 street light;
An A / D converter for converting the analog signals sensed by the sensors into digital signals and inputting them to a microprocessor;
A constant voltage supply unit for supplying power;
A monitoring and resetting circuit for detecting the IoT device and resetting the IoT device according to a monitoring result;
A relay driving circuit configured to receive a control command through a wireless communication unit / IoT-based wireless network module when an abnormal state occurs and to drive a relay of a local controller according to the received control command to cut off a power of a corresponding street light;
GPS; And
Including LED street light dimming controller,
The IoT device,
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 an electric leakage detection sensor, an illuminance sensor, a water level detection sensor, a door open detection sensor, and a fire detection sensor; And
It further comprises a worm inflow prevention means;
The worm inflow prevention means is mounted on the PCB of the IoT device 100, the chip outputting the frequency avoided by the worm, the lower portion of the housing 110 of the IoT device 100, the cable installation hole 111 is formed LED street light dimming control system, characterized in that comprises a configuration that is provided with an LED 114 for emitting light corresponding to the wavelength of 590 ~ 700nm to avoid bugs. The method of claim 7, wherein
The local controller,
A microprocessor for handling all functions of information transmission, information storage and status display;
An IoT based wireless network module for communicating with the IoT device;
A wireless communication unit for exchanging information with a control computer of the integrated management server;
A display unit for displaying various measurement values and communication states;
A status display LED unit displaying an operation state of the local controller;
An external I / F unit performing maintenance of the local controller and updating corresponding data according to an operation state of the local controller;
A constant voltage supply unit for supplying power; And
And a monitoring and resetting circuit for monitoring the local controller and resetting the local controller according to the monitoring result. delete delete The method according to claim 7 or 8,
The IoT-based wireless network is a LORA or NB-IoT wireless network LED street light dimming control system, characterized in that.

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