KR20080079386A - Street power led lamp with wind and solar hybrid generator including remote controllable graphic display - Google Patents

Abstract

An LED(Light Emitting Diode) street lamp with a wind and photovoltaic hybrid generator including a remote controllable graphic display is provided to control brightness according to density of energy charged in a secondary battery automatically. An illumination device(200) is attached to a street lamp structure(100), is formed by collecting a plurality of high brightness LED lamps into block groups and illuminates a roadway. A display unit(300) is attached to the street lamp structure and displays contents with a dynamic image by including a microprocessor, a memory, and an electric signboard. A wind power generation unit(400) is attached to the street lamp structure and is identical to a general wind generator. A photovoltaic power generation unit(500) is attached to the street lamp structure and is identical to a general photovoltaic generator. A communication system(600) includes a wireless transceiving module, an administrator computer, a street lamp management server, and a communication network. A secondary battery(700) stores electricity generated from the photovoltaic power generation unit and the wind power generation unit and supplies the stored electricity to the illumination device and the display unit.

Description

Street light LED lamp with wind and solar hybrid generator including remote controllable graphic display

1 is a block diagram of a street lamp system of the present invention.

2 is a system diagram of a display device.

3 is a system diagram of a communication system.

4 is a cumulative operating cost graph for various types of street lights.

※ Important Component Number

100: street light structure, 200: lighting means, 300: display unit,

400: wind power generation unit, 500: solar power generation unit, 600: communication system,

700: secondary battery

310: microprocessor, 320: memory 320, 330: electronic board 330,

610: wireless transmission module, 620: administrator computer, 630: street light management server,

640: communication network, 641: internet network, 642: mobile communication network

The present invention relates to a street lamp system, and more particularly, a display device capable of displaying a remotely controlled moving image, and the power of the lamp and the display device of the street lamp to the wind turbine and the solar power generator installed therein The present invention relates to a light emitting diode street lamp, which covers itself by a configured combined power generation method.

Conventional conventional street lamps are installed to safely drive cars on the road in the dark night after sunset and to protect pedestrians in India, and are illuminated with sodium lamps or mercury lamps by receiving external AC power.

The street lamps in the city can easily use commercial power, so there is no big problem except for the construction cost and installation cost for supplying electricity. However, the external power supply itself is difficult in highways, outskirts, rural and mountain roads. It is not easy to need a street lamp with self-power generation ability, which is generated by solar cells during the day, and a method of lighting a sodium lamp with the power of a rechargeable secondary battery has been developed. However, due to excessive power consumption of sodium lamps, large-capacity rechargeable batteries are required to illuminate more than 10 hours in winter, and solar cells are expensive, so the cost of charging the rechargeable batteries is $ 10 per watt. This high cost is a barrier to the generalization of solar street lights.

In addition, it may be considered to use a wind power generator as a self-power generation method, or use a solar power generator and a wind power generator together, which is also expensive.

In the case of commercial power supply street lamps using sodium lamps, the initial installation cost is very low except for the cost of power line installation.However, if the 400 watts of electricity are used for 10 years a day, 365 days a year, for 5 years, the amount of electricity used per street lamp is 7300kwh. In 2006, KEPCO's electricity rate, which is 70.73 won per 1 kW, is less than one third of the cost of electricity and households. Even if the initial installation cost is low, the total cost including the accumulated power bill is enormous.

If the above-mentioned sodium lamp is used as it is and only the power supply is replaced with the solar cell and the storage battery, the solar cell price for generating and charging the 3.5kwh of the power required for lighting the sodium lamp for 10 hours per day exceeds $ 10 / watt. Currently, it is difficult to commercialize and requires a 12 volt 300 amperes supercapacitor, but the installation space is inadequate or the latest developed secondary batteries such as Ninel hydrogen, lithium ion, and lithium polymer are three times more expensive than LEAD ACID secondary batteries. Most secondary batteries are not economical because they must be replaced every three years. In particular, when 100% of the power is only supplied by solar power, the secondary battery should be designed on the basis of the minimum amount of insolation such as winter season or the rainy season, so it is more economical.

As described above, a street lamp having a self-power generation function without receiving electricity from the outside may be already developed or may be invented by simply incorporating a conventional solar generator or a wind turbine into a street lamp. A method should be devised to recover the huge initial investment required for installation.

As a method of recovering the initial investment cost as described above, it is conceivable to attach the display device for commercial advertisement along with the road traffic information to secure the initial investment cost by advertising revenue. However, billboards attached to the street lamps should not interfere with the driving of the car, should be safe, and have low power consumption in order to have advertising functions at night.

In order to meet such requirements, it must be a billboard with a display function that can convey a lot of information in a small area. And advertising content should be able to change from time to time, it is not only expensive but also difficult to replace the numerous street lights or re-enter the advertising content by hand. In addition, the method of transmitting the advertisement content by wire takes another cost to provide and operate a separate wire communication network.

Therefore, the billboard used for the street lamp should be able to download and control the advertising and traffic information content remotely by a wireless communication method. In addition, the contents of the advertisement must be secured to prevent the third party from changing it arbitrarily.

The present invention has a display device which is operated by a remote control in order to realize the above technical problem, and is a self-powered light emitting diode street light by the combined power generation by the wind power generator and the solar power generator, minimizing the required power, small area The present invention relates to a streetlight system capable of transmitting a lot of information, having self-generation capability, and securing remote control with security.

As shown in FIG. 1, the street light structure 100, the lighting unit 200, the display unit 300, the wind power generation unit 400, the solar power generation unit 500, the communication system 600, and The secondary battery 700 is configured.

The street light structure 100 is the same as a conventional street light structure.

As the luminaire 200, a high-brightness light emitting diode (LED) lamp is grouped into a group to emit light having a brightness corresponding to the illuminance of the sodium lamp, and consumes several power. Percent reductions are possible. The LED lamp is composed of several or dozens of 3 or 5 watt LEDs, which are relatively low power consumption, in grouped form, so as to provide enough brightness for road lighting, and automatically lights according to the power status and ambient brightness. do.

The display unit 300 is a small LED display board, and is a display device in which characters are continuously changed or pictures are continuously changed by a microcontroller. The display portion may use a flat type such as a general LED display plate, but may be a rotating cylinder.

As shown in FIG. 2, the display unit 300 stores a data and a program for operating the display board, a microprocessor 310 that lights up each LED of the display board and performs other necessary control to display characters, pictures, and the like, as shown in FIG. 2. The memory 320, the electronic board 330 consisting of a plurality of LED lamps 331 flashing according to the control command of the microprocessor 310, and the time and date information to the microprocessor 310 to provide time It comprises a RTC (Real Time Clock, hereinafter " RCT ", not shown) which is a clock that can perform this related control.

Wind power generation unit 400 is the same as a conventional wind power generator. And if a new type of wind turbine has not been developed yet, it can be adopted.

The photovoltaic generator 500 is the same as a conventional photovoltaic generator having a secondary battery 700 capable of storing a solar cell and a battery generated by the solar cell. And if a new type of solar generator has not been developed yet, it could be adopted.

The present invention adopts a hybrid power generation system capable of both wind power and photovoltaic power generation, charges the secondary battery 700 by one SCR the electric energy generated during the day by the solar cell, the electricity generated by the wind power generator Energy also charges the secondary battery 700 together with another SCR, and when a current exceeding the allowable charge current of the secondary battery is generated and supplied, the microcontroller detects a DC current by a Hall sensor / shunt resistor and the like and the microcontroller detects the gate signal of the SCR. It is good practice to shut off to prevent overcharging. On the other hand, at the time of lighting after sunset, it is preferable to preferentially use the electricity generated by the wind power generator to prevent excessive use of the energized electricity charged in the secondary battery 700.

The communication system 600 is installed in each street light to receive the content to be displayed on the billboard, and transmits the radio information receiving module 610, administrator computer 620 for transmitting the traffic information collected from the street with the status of the billboard. , A streetlight management server 630, an internet network 641, or a communication network 640 using a mobile communication network 642.

After mutual authentication with the street light management server 630 with CSP (Cryptography Service Provider, hereinafter referred to as "CSP") security in the administrator computer (620), whether the street lights corresponding to the group and the unique number, the display device is Enter content information to display, streetlight operation program, and time information. The street lamp management server 630 transmits the information input as described above to the wireless transmission / reception module 610 installed in the individual street lamp through the communication network 640 using the Internet network 641 or the mobile communication network 642.

The street lamp management server 630 may have a function of generating and transmitting a signal to control and operate an LED block for automatically adjusting the illumination of individual street lamps according to the street lamp operation information input by the manager computer 620. It may be.

The wireless transmission / reception module 610 transmits the received information to the microcontroller 310 of the display device 300 and relays the received information to the memory 320.

The street lamp groups a plurality of street lamp groups as shown in FIG. 3, and again assigns a unique number (eg, ID # 123-4567 ...) to each street lamp, and a valid administrator authenticates the server 630. Receiving and transmitting the content information and display time program to be displayed on the display device through the communication network, the display device 300 attached to each street light to display information, such as program, reservation time, etc. to the unique number of each display device Corresponding content information and information such as display program time are stored in the memory 320 of each display device, and the LED is blinked according to the program at the programmed time to display the content on the display device 300.

For example, a large letter on a street lamp could display W E L L C O M E T O K O R E A on a dynamic display and the flag displayed in color can be toggled sequentially, or advertisements or traffic information can be displayed depending on the time of day.

 In order to prevent the display device from being manipulated or hacked by a third party, authentication such as Windows Vista authentication or Windows XP authentication of the administrator computer 620 is performed using the public key Kp when the PIN (Personal Identification Number) of the smart card CSP is input. By signing and sending, it prevents hacking by third parties. The CSP of the street lamp management server 630 mutually authenticates with the private key Kp and checks the validity of the transmitted data. Thereafter, the encrypted transmission information is decrypted by the RSA decryption algorithm, and then data is transmitted to each display device through the communication network 640. The display device of each street light has a unique identification number, and the display device transmits data by specifying a display device unique number by a valid administrator, and then the street management server 630 authenticates the administrator's legitimacy with an encryption key. The information is decoded and stored in the internal memory 320, and the blinking signal is applied to the LED of the display device 300 according to the information to be displayed at a predetermined time.

The street lamp of the present invention can be provided separately from the road lighting unit, the lighting unit for the sidewalk, in order to minimize the power consumption can be illuminated only when there is a movement of people in India and not when there is no person. . The presence of a person in India is detected by an infrared sensor.

In addition, the street light links the infrared sensor with the traffic light of the crosswalk by wireless communication, so the traffic light of the crosswalk can determine whether the pedestrian is in progress toward the crosswalk, and another infrared sensor installed on the crosswalk is connected to the crosswalk. Minimize waiting time when there are people waiting to open traffic lights at pedestrian crossings so that pedestrians can safely cross the pedestrian crossings and continue to drive without unnecessary stops when no one is waiting at the crosswalk at night. You can smooth the flow of cars.

On the other hand, in order to extend the function of transmitting traffic information to the display device of the street lamp, by installing a digital camera on the street lamp and transmits the image information on the road condition to the street lamp management server 630 to visually monitor the traffic flow of the road in the control center After the digital camera video signal is stored in the image grabber at 5 or 10 frames per second in real time, the congestion of the vehicle, the occupancy density of the car, and the change in the speed of the vehicle are determined by the DSP with the algorithm. After the traffic information is transmitted to the control center through wireless communication, the traffic information generated in the direction in which the vehicle is going to be transmitted to the driver of the driving vehicle through the display device or the TPEG information of the navigation system can be selected to select the bypass road. You can guide them.

The image information of this digital camera can also be used for the purpose of checking the presence of traffic violation vehicles, congestion factor analysis, traffic survey, and frame analysis in the event of a traffic accident.

The combined cycle light emitting diode street light by the wind power generator and the solar generator with the display device operated by the remote control according to the present invention corresponds to the illuminance of the sodium lamp using a module in which a high-brightness LED lamp is grouped into several blocks as a lighting means. It can reduce power consumption by tens of percent, and automatically adjust brightness according to moonlight and amenorrhea after sunset and automatically adjust according to the energy density charged in the secondary battery. And with a wind power generation system, it is possible to reduce the cost of the solar cell required for charging the secondary battery and the secondary battery required for power storage.

The present invention is to adopt a billboard to cover some of the initial cost of having a photovoltaic power generation and a wind power generator with advertising revenue, this billboard is a displayable LED signboard, can transmit a lot of information even in a small Rather, the display can be changed to keep people's attention.

The present invention adopts a secured communication system, so that the content to be displayed on the display unit and the operation program can be remotely controlled. Therefore, it is easy to operate because the advertisement contents can be changed at any time in a very simple way.

The operation cost of the present invention street lamp is as shown in the graph of FIG. In this graph, line (1) is the cumulative operating cost of a street lamp that is supplied with commercial electricity from the outside, and line (2) is the cumulative operating cost of a sodium lamp street lamp to which a solar generator is applied. Is the cumulative operating cost of the LED lamp street lamp that is applied together with the solar generator and the wind generator, and (4) is the horizontal line where the advertisement revenue is generated by introducing an advertisement board to the LED lamp street lamp that is combined with the solar generator and the wind generator according to the present invention. Cumulative operating costs. However, this price is based on KEPCO's public utility bill in 2006 and may be added or subtracted by the difference in power generation capacity depending on the wind volume, wind speed, and average solar sunlight of the site to be installed, excluding street lamp installation pole and installation cost. will be.

As can be seen from this graph, the common street lamps supplied with commercial electricity from the outside have a cumulative electricity cost as the service life increases, and the cumulative operating cost increases. However, the initial installation cost is very high, the LED lamp street lamp combined with the solar power generator and wind power generator is low power consumption and can be partially generated by wind power at night, so the cost of the secondary battery is reduced, the initial installation cost is low. When the billboard is applied to the LED lamp street lamp, which is the present invention, the solar power generator and the wind power generator are used together, the initial installation cost is somewhat higher, but the cumulative operating cost is gradually reduced due to the advertisement income, and after three years, the ordinary street lamp is The initial investment costs are almost recovered after five years.

The present invention is to replace the sodium lamp with a high-brightness LED, to improve the similar light amount to operate at about 50% of the power, but the illumination by the method of lighting only the block to which the signal is applied by grouping the LED block according to the ambient brightness By applying solar power and wind power in parallel, it was possible to drastically reduce the initial killing cost for secondary batteries. Further, by applying a display panel operated by wireless communication with a road information collection device such as an infrared sensor and a digital camera to such a street light, and introducing a product advertisement along with traffic information, road information, national flag display public service advertisement, Revenue model corresponding to very high advertising effect realizes the most economical advanced street light than any existing street light.

Therefore, the present invention is a street lamp of the present invention to illuminate the street lamp only by the electricity generated by itself without any external power supply, the secondary battery, the lighting unit, and the power generation unit combined to become the most economical and effective street lamp.

Claims (4)

Street light structure 100; It is attached to the street lamp structure, the plurality of high-brightness LED lamps are composed of a group of blocks, the lighting means for illuminating the road (200); The microprocessor 310 is attached to the street lamp structure, the microprocessor 310 to turn on each LED of the display board and other necessary control, the memory 320 for storing data and programs necessary for the operation of the display board, and the control of the microprocessor 310 A display unit 300 including a display board 330 composed of a plurality of LED lamps flashing according to a command, and displaying contents such as an advertisement as a video; A wind power generator 400 attached to the street light structure and the same as a conventional wind power generator that generates electricity by wind; A photovoltaic unit 500 attached to the street light structure and the same as a conventional photovoltaic generator that generates electricity by solar light; Wireless transmission and reception module for transmitting the street light operation information including the content to be displayed on the display unit to the microprocessor 310 of the display unit 300, is installed in each street light to receive the operation information and to transmit the status information of the display board ( 610), the administrator computer 620 for inputting the street light operation information, and generates and sends a signal to control and operate the LED block for automatically adjusting the illumination of the individual street lamps according to the street light operation information input from the administrator computer A communication system 600 including a street light management server 630 and a communication network 640 for transmitting a signal transmitted from the street light management server to the wireless transmission / reception module by using an internet network or a mobile communication network; The secondary battery 700 stores electricity generated by the photovoltaic unit 500 and the wind power generator 400 and supplies the stored electricity to the lighting unit 200 and the display unit 300. The LED street light having a display device which is operated by a remote control having a combined power generation by wind power and photovoltaic power generation, including. The method of claim 1, wherein the communication system 600, In order to prevent the display device from being subjected to manipulation or hacking by a third party, the administrator computer 620 includes Windows Vista authentication, Windows XP authentication, or smart card CSP authentication and administrator PIN verification means; The street lamp management server 630 mutually authenticates the smart card CSP of the administrator computer 620 with an administrator PIN, confirms the validity of the data transmitted from the administrator computer 620, and secures the encrypted transmission information. A communication system having security means for transmitting data to the wireless transmission / reception module 610 of each street light through the communication network 640 after decrypting by an encryption decryption algorithm according to the encryption key value of the module; Light emitting diode street light having a display device which is operated by remote control and has a combined power generation function by wind power and photovoltaic power generation. The method of claim 1 or 2, wherein the street light, An infrared sensor capable of detecting whether a person passes on the sidewalk; In conjunction with the infrared sensor is turned on when a person passes to India, and further provided with a light emitting diode streetlight for India that is turned off if no human traffic, wind power and solar power has a combined power generation function LED street light having a display device operated by the control. The method of claim 1 or 2, wherein the street light, A digital camera capable of capturing the state of the road; The communication system 600 is a communication system further comprising a function of transmitting the video signal collected by the digital camera to the street lamp management server (630); The display unit 300 further comprises a function of displaying the road information collected from the street light, having a combined power generation by wind power and photovoltaic power generation and having a display device operated by remote control. LED street light.

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