KR101617700B1 - LED street light system using Wireless Mesh Network - Google Patents

Abstract

The present invention relates to an LED street light system using a wireless mesh network. The present invention relates to an LED street light system for providing remote monitoring and control, Wi-Fi coverage using a wireless mesh network including a multi-function LED street light (10) and an integrated management server (20) 10 transmits and receives the streetlight information to each other using the IEEE 802.11s based wireless mesh network technology and finally transmits the streetlight information to the integrated management server 20 so that the integrated management server 20 can control the multi- ) Is performed by a wireless mesh network.

Description

[0001] The present invention relates to an LED street light system using a wireless mesh network,

The present invention relates to a LED street light system using a wireless mesh network, and more particularly, to a next generation LED street light system using a wireless mesh network technology, in which a wireless mesh network is used as a backbone of a communication network, ) Function, thereby providing a solution that can be utilized as U-city infrastructure.

The wireless mesh network has advantages over existing mobile communication networks because of its ease of network expansion, economic cost reduction and high reliability, and is utilized in various fields. In particular, demand is rapidly spreading around countries with poor wired infrastructure. It is used in various fields such as cities, factories, schools, trains, telecommunication networks, police, and firefighting. And the like.

Recently, in order to improve the quality of the administrative service and to improve the work efficiency, major cities and administrations are considering building a wireless network for public services, and pilot services for wireless mesh networks are underway in some areas. The mesh network technology based on wireless LAN is being collected through overseas case to build a self network. It is used for collecting and processing various sensor information by combining Ubiquitous Sensor Network (USN) technology like the weather forecast system of Korea Meteorological Agency There is also.

According to the forecast of domestic wireless LAN equipment market (2010, IDC), it is expected to grow at a CAGR of 15% on the introduction of mesh network equipment and 802.11n equipment.

Although the standards related to the wireless mesh network vary depending on the size of the network, a representative standard of the wireless mesh network for the metropolitan network corresponds to the standard related to the IEEE 802.16a, 16j (commonly referred to as WiBro and WiMAX, which are portable Internet standards).

Here, IEEE 802.16j is a technology standard for connecting to a base station through a wireless mesh network formed between terminals located outside a coverage area of a base station in an existing base station-based network.

Meanwhile, a representative standard of a wireless mesh network for a local network is IEEE 802.11s, which corresponds to a technology standard that can be extended to an IEEE 802.11-based network.

Finally, there is the IEEE 802.15.5 standard as a private network wireless mesh network standard, and IEEE 802.15.5 is a system in which very small devices carried by people form a wireless mesh network based on low-power wireless technology IEEE 802.15.4, The standardization stage has been completed as a standard for efficient connection.

Accordingly, the most suitable standard technology for remote monitoring and control in a wide range is judged as IEEE 802.11s, which is a wireless mesh network standard based on IEEE 802.11.

The main technologies required for wireless mesh network can be summarized as follows.

First, with the automatic network configuration function, the mesh type network topology can automatically configure the network shape automatically in the wireless environment, and it is possible to increase the reliability by utilizing multipath as compared with the existing point-to-multi point wireless communication method have. Therefore, it is useful for applications where existing communication infrastructures such as fire fighting, disaster communication, and military communication are poor, or communication is automatically performed according to the situation.

Second, the automatic network restoration function has a function of automatically finding an optimal new routing path in a communication network when a problem such as physical or traffic overload occurs in a specific node due to a communication method using a multipath. In order to recover such a network, all nodes must periodically search for an optimal wireless link, calculate the amount of traffic processed by the node and the transmission delay rate, .

Thirdly, it is possible to construct a wide coverage network through a license-exemption small-power communication. Unlike point-to-multipoint wireless communication, the network configuration using a wireless mesh network can utilize multi-hop, Power can be utilized to provide a wider coverage. Also, it has a high frequency reuse effect by utilizing low transmission power and dynamic frequency selection.

Accordingly, in the related art, it is required to develop a technique to utilize as a U-city infrastructure by providing remote monitoring, control, and Wi-Fi coverage using IEEE 802.11s, which is a wireless mesh network standard.

[Related Technical Literature]

1. LED dimming control and remote control integrated management system of LED street light / security light using PLC communication (Patent Application No. 10-2012-0050263)

2. A bidirectional solar LED streetlight remote control system combined with a broadcasting service function (Patent Application No. 10-2011-0066460)

The present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide an LED street light wireless remote monitoring and control solution utilizing a wireless mesh network, The present invention relates to an LED street light system using a wireless mesh network to utilize the state information of a basic street light such as an LED street light.

In addition, the present invention can provide an additional service using an additional sensor (air pollution sensor such as fine dust, nitrogen dioxide, temperature / humidity, etc.) to the LED street lamp through a wireless mesh network, It is intended to provide an LED street light system using a wireless mesh network to provide a Wi-Fi service for each street lamp to be utilized as a U-City wireless solution.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the LED street light system using the wireless mesh network according to the embodiment of the present invention includes remote monitoring and control using a wireless mesh network including the multi-function LED street lamp 10 and the integrated management server 20 , And Wi-Fi coverage, a plurality of multi-function LED street lamps 10 transmit and receive streetlight information to each other using IEEE 802.11s-based wireless mesh network technology, So that the integrated management server 20 allows remote control and monitoring of the multi-function LED street lamp 10 to be performed.

At this time, the integrated management server 20 receives the information on the usage power, the average voltage, the power failure, the short circuit, the lighting and the light off, the temperature and the humidity of each multi-function LED streetlight 10 by the streetlight information, It is desirable to carry out real-time grasp of state and short-circuit, occurrence of trouble, and coping.

The LED streetlight system receives streetlight information from the integrated management server 20 through the 3G / 4G base station 30 to a mobile terminal owned by a field engineer, and not only the integrated management server 20 as a management center A management / monitoring terminal 50 that enables direct control and monitoring of a plurality of multi-function LED streetlamps 10 by a field engineer; .

The multifunctional LED street lamp 10 is structurally divided into an upper LED lighting frame 10a and a lower LED lighting support 10b and the upper LED lighting frame 10a has two frames facing upward The solar cell module is formed on the upper surface of two frames of the LED lighting frame 10a of the structure, and is used as a power source for driving the information processing module 11 and the LED lighting 14 by condensing the sunlight and converting it into electric energy. (12); Is preferably formed.

The upper LED lighting frame 10a is formed in a central region of two frames of the LED lighting frame 10a and generates electric energy in accordance with the rotation of the fan by the wind power to be supplied to the information processing module 11 and the LED lighting (13) for use as a power source for driving the wind power generator (14); And the LED lighting 14 is formed on the lower surfaces of the two frames of the LED lighting frame 10a to receive electrical energy from the solar cell module 12 and the wind power generation module 13, And it is preferable to turn it off.

The multifunctional LED street lamp 10 is formed in an area where the LED illumination frame 10a and the LED illumination support 10b are connected and includes the MCU 11a, the IEEE 802.11s-based mesh network module 11-1, An information processing module 11 including an IEEE 802.11 b / g / n-based wireless LAN module 11-2; The MCU 11a transmits and receives mutual streetlight information based on the mesh network through data transmission / reception with other multi-function LED street lamps 10 through the mesh network module 11-1, The integrated management server 20 transmits the streetlight information to the integrated management server 20 through the AP 30a under control of the module 11-2 so that the integrated management server 20 can remotely control the multifunctional LED streetlight 10 And the monitoring is performed.

The information processing module 11 is also provided with a power / voltage measuring sensor, a temperature / humidity sensor, an electric power and an electric leakage sensor, and a light intensity sensor, A sensor unit 11b that senses temperature and humidity, lights up and lights off, generates packetized streetlight information, and provides the streetlight information to the MCU 11a; .

The LED street light system may be a mobile terminal or a vehicle terminal owned by a driver of a vehicle driving a road on which a plurality of multifunctional LED street lamps 10 are installed and a user terminal 40 ); And the control monitoring application 40a includes a multifunctional LED street lamp belonging to the Wi-Fi communication coverage of the IEEE 802.11 b / g / n-based wireless LAN module 11-2 among the plurality of multi-function LED streetlights 10 A location-based service, a security service, a traffic service, and the like through data communication with the multi-function LED streetlight 10, It is preferable to provide a telematics function including information and implement it as an output part of the user terminal 40.

In the present invention, each multi-function LED streetlight 10 provides Wi-Fi coverage through control of the MCU 11a based on the IEEE 802.11 b / g / n based wireless LAN module 11-2, It is preferable to use it as a wireless solution of -City.

The LED street light system using the wireless mesh network according to the embodiment of the present invention not only provides a wireless remote monitoring and control solution for LED street light using a wireless mesh network, but also provides an LED street light using power, voltage, current, Temperature, humidity, and so on.

In addition, the LED street light system using the wireless mesh network according to another embodiment of the present invention can be realized by using additional sensors (air pollution sensors such as fine dust, nitrogen dioxide, temperature / humidity, etc.) It can provide additional services, and provides a Wi-Fi service for each LED street lamp using a wireless mesh network, thereby providing a U-City wireless solution.

1 is a view illustrating an LED street light system using a wireless mesh network according to an embodiment of the present invention.
FIG. 2 is a diagram showing the configuration of the multi-function LED street lamp 10, the integrated management server 20, and the user terminal 40 in the LED street light system using the wireless mesh network of FIG.
3 is a view showing an example of utilization of an LED street light system using a wireless mesh network according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In the present specification, when any one element 'transmits' data or signals to another element, the element can transmit the data or signal directly to the other element, and through at least one other element Data or signal can be transmitted to another component.

1 is a view illustrating an LED street light system using a wireless mesh network according to an embodiment of the present invention. FIG. 2 is a view showing the configuration of the multi-function LED street lamp 10, the integrated management server 20, and the user terminal 40 in the LED street light system using the wireless mesh network of FIG. 1 and 2, an LED street light system using a wireless mesh network includes a plurality of multi-function LED street lamps 10, an integrated management server 20, a user terminal 40, and a management / monitoring terminal 50 And further includes a 3G / 4G base station 30 and an access point (AP) 30a.

The plurality of multifunctional LED street lamps 10 transmit and receive the streetlight information to each other using the IEEE 802.11s based wireless mesh network technology and finally transmit the information to the integrated management server 20 through the 3G / 4G base station 30 or the AP 30a Thereby allowing the integrated management server 20 to perform remote control and monitoring of the multifunctional LED streetlamp 10.

Accordingly, the integrated management server 20 receives the power usage, the average voltage, the power failure, the short circuit, the lighting and the light extinction, the temperature and the humidity of the multifunctional LED streetlight 10 as the streetlight information, Real-time detection of short-circuiting, fault occurrence, etc. and quick response. In addition, the integrated management server 20 not only saves energy by controlling the street lamps and the turn-off time of each of the multifunctional LED street lamps 10 based on the streetlight information, Discomfort and safety accidents can be prevented.

Meanwhile, the management / monitoring terminal 50 receives the streetlight information from the integrated management server 20 through the 3G / 4G base station 30 to the mobile terminal owned by the field engineer, In addition, it enables direct control and monitoring of a plurality of multi-function LED street lamps 10 by a field engineer.

Meanwhile, a plurality of multi-function LED street lamps 10 utilize a wireless mesh network to provide Wi-Fi coverage, thereby utilizing U-city as a wireless infrastructure, including data services, location-based services, Not only provides the telematics function to the vehicle having the user terminal 40 but also receives the control signal for the automatic streetlight control utilizing the streetlight remote control and the sensor directly from the user terminal 40 or via the AP 30a .

Next, referring to FIG. 2, the multi-function LED street lamp 10, which is a single unit, is structurally divided into an upper LED lighting frame 10a and a lower LED lighting support 10b And the information processing module 11, the solar cell module 12, the wind power generation module 13 and the LED lighting 14 are formed in the upper LED lighting frame 10a.

In this specification, a module 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 < / RTI >

The solar cell module 12 is formed on the upper surfaces of two frames of the LED lighting frame 10a having two frames facing upward so that sunlight is collected and converted into electric energy, And to use it as a power source for driving the light 14.

The wind power generation module 13 is formed in a central region of two frames of the LED lighting frame 10a so that the information processing module 11 and the LED lighting 14 And to use it as a driving power source.

The LED lights 14 are formed on the lower surfaces of the two frames of the LED illumination frame 10a to receive and supply the electric energy from the solar cell module 12 and the wind power generation module 13,

The information processing module 11 is formed in an area where the LED lighting frame 10a and the LED lighting support 10b are connected and includes an MCU 11a, a sensor unit 11b, a mesh network module based on IEEE 802.11s 11-1), and a wireless LAN module 11-2 based on IEEE 802.11 b / g / n.

The sensor unit 11b includes a power / voltage measurement sensor, a temperature / humidity sensor, an electric power failure and an electric leakage sensor, an illuminance sensor, and the like so that power consumption, average voltage, power failure, Temperature, humidity, and the like to generate packetized streetlight information, and provides the streetlight information to the MCU 11a. In another embodiment of the present invention, the sensor portion 11b may further include a fine dust sensor and a nitrogen dioxide sensor, and other air pollution sensors.

The MCU 11a transmits and receives mutual streetlight information based on the mesh network through data transmission / reception with other multi-function LED street lamps 10 through the mesh network module 11-1.

The MCU 11a controls the wireless LAN module 11-2 to finally transmit the streetlight information to the integrated management server 20 via the AP 30a so that the integrated management server 20 can control the multi- Thereby allowing remote control and monitoring of the streetlight 10 to be performed.

In addition, the MCU 11a provides Wi-Fi coverage through control over the IEEE 802.11 b / g / n based wireless LAN module 11-2 so that each multi-function LED streetlight 10 can communicate with the U- Solution.

Meanwhile, the integrated management server 20 includes a control monitoring module 20a and an integrated management DB 20b. The control monitoring module 20a receives the streetlight information for a plurality of multifunctional LED streetlamps 10 from one multifunctional LED streetlamp 10 through the AP 30a and stores them in the integrated management DB 20b.

Also, in this specification, a DB may mean a functional and structural combination of software and hardware for storing 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 20a transmits the streetlight information for the at least one or more multi-function LED streetlamps 10 stored in the integrated management DB 20b to the mobile terminal owned by the field engineer, , The integrated management server 20 as a management center, as well as a plurality of multi-function LED street lamps 10 by a field engineer.

The user terminal 40 must be installed with the control monitoring app 40a installed in the mobile terminal or the vehicle terminal owned by the driver of the vehicle driving the road on which the plurality of multi-function LED street lamps 10 are installed. The control monitoring application 40a is connected to the multi-function LED street lamp 10 belonging to the Wi-Fi communication coverage of the IEEE 802.11 b / g / n-based wireless LAN module 11-2 among the plurality of multi- After establishing a session, the mobile terminal performs a hand-off according to the movement of the location, and performs telematics functions including data service, location-based service, security service, and traffic information through data communication with the multi- And is implemented as an output of the user terminal 40.

In addition, the control monitoring application 40a transmits the streetlight remote control for the multi-function LED streetlight 10 and the automatic streetlight control signal utilizing the sensor to each of the multi-function LED streetlights 10a before and after the handoff.

The LED street light system using the wireless mesh network according to the present invention has different features from the conventional remote control and monitoring method as shown in Table 1 below.

division Existing remote control and monitoring methods
(Wi-Fi, ZigBee, Proprietary) The system according to the invention
(Based on IEEE 802.11s) Distance constraint Determined by maximum output of communication technology
Requires integration with wired to extend distance Because multi-hop communication is possible, it is theoretically indefinite Extra service Not available Wi-Fi AP service using wireless mesh network, additional additional service development possible

3 is a diagram illustrating an example of utilization of an LED streetlight system using a wireless mesh network according to an embodiment of the present invention.

That is, the LED street light system using the wireless mesh network according to the present invention is a next-generation LED street light system using the wireless mesh network technology, which enables remote monitoring and control by using wireless technology, and simultaneously connects the wireless mesh network with the back- ) So that each of the multi-function LED street lamps 10 can utilize the wireless AP (Access Point) function as a U-city infrastructure.

As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms have been used, they have been used only in a general sense to easily describe the technical contents of the present invention and to facilitate understanding of the invention , And are not intended to limit the scope of the present invention. It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

10: Multi-function LED street light
10a: LED lighting frame
10b: LED lighting holding
11: Information processing module
12: Solar module
13: Wind power module
14: LED lighting
20: Integrated management server
20a: Control monitoring module
20b: Integrated management DB
30: 3G / 4G base station
30a: AP (Access Point)
40: User terminal
40a: Control monitoring app
50: management / monitoring terminal

Claims (9)

A multi-function LED streetlight system (10) for remote monitoring and control, Wi-Fi coverage using a wireless mesh network including a multi-function LED street light (10) and an integrated management server (20)
And transmits and receives the streetlight information to and from the integrated management server 20 using the IEEE 802.11s based wireless mesh network technology and transmits the streetlight information to the integrated management server 20 so that the integrated management server 20 can remotely control the multi- Control and monitoring are performed,
A user terminal 40 in which a control monitoring app 40a is installed and driven by a driver or a vehicle terminal of a vehicle driving a road on which a plurality of multifunctional LED street lamps 10 are installed; Further comprising:
The control monitoring application 40a is connected to the multifunctional LED street lamp 10 belonging to the Wi-Fi communication coverage of the IEEE 802.11 b / g / n based wireless LAN module 11-2 among the plurality of multi-function LED street lamps 10 After the data session is established, a hand-off is performed according to the movement of the location, and a telematics function including data service, location-based service, security service, and traffic information is performed through data communication with the multi- To be implemented as an output of the user terminal 40,
The control monitoring app 40a transmits an automatic streetlight control signal for the multi-function LED street lamp 10 to each of the multi-function LED street lamps before and after the hand-off.
The system according to claim 1, wherein the integrated management server (20)
It is a streetlight information, which receives information on the usage power, average voltage, power failure, short circuit, lighting and extinction, temperature and humidity of each multifunctional LED street light 10 and real time grasp of the spot light / And the LED streetlight system using the wireless mesh network.
The LED street light system according to claim 1,
The field engineer receives the streetlight information from the integrated management server 20 via the 3G / 4G base station 30 to the mobile terminal, and not only the integrated management server 20 as the management center but also a plurality of multi- A management / monitoring terminal (50) for enabling direct control and monitoring of the LED street light (10); Further comprising a wireless mesh network.
The multi-function LED street light (10) according to claim 1,
The upper LED illumination frame 10a and the lower LED illumination support 10b are mechanically divided into two,
In the upper LED lighting frame 10a
The two frames are formed on the upper surfaces of the two frames of the LED illumination frame 10a having an upward facing structure to convert the sunlight into electrical energy and supply power to the information processing module 11 and the LED lighting 14 A solar cell module (12) for use as a solar cell module; Is formed on the surface of the LED screen.
The LED lighting apparatus according to claim 4, wherein the LED lighting frame (10a)
And is used as a power source for driving the information processing module 11 and the LED lighting 14 by generating electric energy in accordance with the rotation of the fan by the wind force, which is formed in a central area of two frames of the LED lighting frame 10a A wind power generation module (13); Lt; / RTI >
The LED illumination (14)
Wherein the LED lighting device is formed on the lower surfaces of the two frames of the LED lighting frame 10a to receive electric energy from the solar cell module 12 and the wind power generation module 13 to turn on and off the lighting. LED street light system.
The multi-function LED street lamp (10) according to claim 4,
An IEEE 802.11s-based mesh network module 11-1, and an IEEE 802.11b / g / n-based IEEE 802.11b / g / n-based wireless LAN module 11a, which are formed in an area where the LED lighting frame 10a and the LED lighting post 10b are connected. The information processing module 11 including the wireless LAN module 11-2; Further comprising:
The MCU 11a transmits and receives mutual streetlight information based on the mesh network through data transmission / reception with other multi-function LED street lamps 10 through the mesh network module 11-1, 2 to the integrated management server 20 through the AP 30a according to the control of the integrated management server 20 to perform remote control and monitoring of the multifunctional LED street lamp 10 by the integrated management server 20 Wherein the LED lamps are connected to each other via a wire mesh network.
7. The information processing apparatus according to claim 6, wherein the information processing module (11)
Average power, average voltage, power failure, short circuit, lighting and extinction, temperature and humidity of multi-function LED street lamp (10) including power / voltage measurement sensor, temperature / humidity sensor, A sensor unit 11b for generating packetized streetlight information to provide the streetlight information to the MCU 11a; Wherein the wireless network is a wireless network.
delete 7. The multi-function LED street lamp (10) according to claim 6,
And provides Wi-Fi coverage through control of the MCU (11a) based on the IEEE 802.11 b / g / n based on the wireless LAN module (11-2).

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