KR20180118088A - Management method for road guidance lights supported by solar cells at the backwoods where common use AC power grid is not connected - Google Patents

Abstract

When a driver guidance lighting system for safety of roads is installed in a backcountry, a commercial AC power cannot be drawn such that there is a system using a photovoltaic generation system and batteries. However, the photovoltaic generation is difficult for days in the rainy season, and functions of the system cannot be used at rainy nights, which need guidance lightings most. The present invention relates to a method which sends identification information of a guidance lighting system and information on remaining amount of batteries to a control center by using a communication of a mobile service wherein the control center calculates a battery exchange time with a fully charged battery, and when necessary, conveniently exchanges the battery on the site, thereby enabling operation of the sunlight-based guidance lighting system in a backcountry even in a rainy season. The present invention comprises a communication method for sharing time sync, which is a reference time of the directional flickering or a sequential flickering for drawing attention of drivers.

Description

[0001] The present invention relates to a method for managing a solar-powered roadway guidance light system in an unconnected commercial power connection,

The present invention relates to the operation of a gaze guidance light which doubles the effect of the gaze guidance mark to help safe driving by guiding the gaze of a road driver located at the periphery of a road,

In particular, when LED lighting is used to visually inform the driver of the information about the curvature of the road at the curved roads of the outback, it is difficult to connect the commercial AC power as the power source of the lighting, And is applied to a system that supplies power of illumination by itself.

In the case of Korea, it is difficult to keep the development of road guiding light system using solar power for a few days in the rainy season in July, because it is difficult to supply power, and rain or cloudy weather is maintained. And more particularly to a convenient method of using solar power as an electric power source in place of solar power generation.

 The present battery residual amount information is received via wireless communication at a control station, and a period during which the guide light system can be operated by the battery power in consideration of weather conditions at each place where the guide light system is installed, By keeping the battery in standby, it is possible to carry out the function of replacing the battery of the Oji photovoltaic guidance lamp on the spot by referring to the information of this point, The present invention relates to a method for allowing a user to make a request.

In addition, a system that detects the approach of the vehicle in front of the guide light so that the guide light can be operated only when the vehicle is approaching, and notifies the communication through the communication, and a system in which the light emission of each guide light is transmitted more meaningfully to the driver. And a method for exchanging information between the guide lights to adjust the time sync, which is a time reference of the flicker between each guide light, for this purpose.

A technology of a power saving type of road safety automatic lighting system that detects the entry of a vehicle and supplies power to a driving power source in an illumination system that promotes road safety is disclosed in "Power saving road safety automatic lighting control system and its test method" 2002- 0007116 A).

A technique for checking and managing a guide light on a road using wireless communication using a portable device is disclosed in, for example, "Wireless Communication Guide Light Checking System" (Patent Document 2: KR10 - 2007 - 0029857 A).

For a HPLC communication technique of transferring specific information using the same power line while supplying electric power to a load such as a lighting of a battery, a "DC power line communication control device using an H-bridge circuit" (Patent Document 3 KR10-2015- 0077386 A) is disclosed.

Techniques for solar power generation are well known, and techniques for charging a battery using a solar cell and checking the remaining amount of the battery are also known. Communication application technology is also used to propagate information such as faulty or remaining battery level to the central station by using the communication method of commercial mobile phone service.

In order to perform the functions of the guiding light system normally, even if the photovoltaic power generation is difficult and the data is received from the meteorological data DB, You should mobilize computer technology to calculate when to replace the battery.

In order for the guidance light to operate not only for simple illumination but also for attracting a driver's attention such as blinking or sequential flashing for directional display, each guide light must share the reference time of blinking, (Time Sync) to communicate with the communication must be shared with the existing ZigBee or ISM band wireless communication or wired to run it.

Since a battery and a plurality of guide lights should be connected by a power line, a new power line communication method capable of simultaneously sharing time synchronization information with power transmission using a power line instead of wireless or separate communication line for communication for time synchronization between guide lights You can mobilize. Typically, the method of Patent Document 3 is utilized in the present invention by an inexpensive technical means.

KR 10-2015-0077386 A KR 10-2007-0029857 A KR 10-2002-0007116 A

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The sight guide light installed on the road can be utilized as the power of the guide light by using the commercial AC power directly in the place where the commercial AC power is easy to enter. Among the road traffic facilities, in the case of the remote area where it is difficult to attract commercial AC power depending on the location, the solar cell for solar power generation is connected to supply electric power to acquire its own electric power energy.

For example, in the case of the Republic of Korea, in the rainy season of July, when solar energy can not be generated by using solar cells, that is, when rainy weather or very cloudy weather lasts more than 5 days, It is frequent.

In the case that the gaze guidance light is most needed on the road, there is a problem that it can not be used as a climatic condition when the night view and heavy rain are falling or when the gaze guidance light totally dependent on the sunlight is the most necessary.

 In the case of Oji where it is difficult to supply commercial power, it is difficult to supply electric power by solar power generation due to the climatic problem in the traffic related lighting system using the photovoltaic power generation.

In addition, in order to increase the effect of the guiding light of the guiding light, in order to make the pattern of the blinking of the guiding lamps installed in plural order be sequential or reminiscent of the direction instruction, a communication method for synchronizing the time between the guiding lights should be considered, We will also try to find a low-cost communication method to match.

During the dry season, solar power is supplied to solar power in the dry season, while solar power is not available in the rainy season during the rainy season.

In the case of rainy season rainy season, in order to monitor the accumulation of rocks and gravels on the road, road management subjects regularly turn patrols. Therefore, when the remaining power of the battery in the place where the guide light is installed is replaced with a charged battery.

In the case of the outback, the station managing the roads and roads is far away, and it is difficult to know whether the battery installed in the field is charged with solar energy or the remaining charge of the battery. It is also difficult to know when the guide light system can not operate due to a power shortage due to a bad diary, that is, when to replace the battery.

 CD-ROM or GSM or HSPA or LTE or other commercial mobile phones can be used to identify and use the remaining battery level information on the site or in a central computer or computer system.

Computers and computer systems can monitor and download climate weather information from government offices or private companies that handle and produce climate information, and the road lighting facility control station can be used to predict future charging events based on geographical information And calculates the limit time point at which the guide light system can normally operate by using the current battery remaining amount information and the battery capacity information when the current diary is maintained or the predicted climatic weather is maintained or the weather data stored in the remote server is utilized The algorithm can be used to predict the expected time.

The station that manages the roads should keep track of whether the earth or rock wall is broken or the road facilities are normal when the rainy season is continued. Therefore, If you go through a business process that replaces a waiting battery with a charged battery, it will be difficult to cover the electricity due to the solar power generation because the summer diary lasts for a long time. do.

The computerized system of the station displays information about the location of the currently installed guide light, the expected time point at which the battery should be replaced, the urgent need to replace the battery, and the fault information of the guide lamp. The system is operated so that the guidance light system for road safety can function regardless of the possibility of solar power generation in the rainy season by taking the method of exchanging the battery on site and simply exchanging it.

In the remote area where commercial AC power is difficult to supply, the characteristic of outback is that it is not the place where the vehicle is always going to pass and the guide light is blinking when the vehicle does not pass. Since there is no need to waste electric power, it is possible to recognize the case where the vehicle approaches the installation place of the guide light system so that the guide light function only when the vehicle approaches, Detecting whether the vehicle is approaching from the front and using it to transfer information to the guidance light system will continue to use the battery.

In this case, in this case, a statistical weight or information on the time when the vehicle approaches and the guide light is operated through the mobile communication means is transmitted to the control station, and the change point of the battery is calculated by considering the information of the access frequency of the vehicle, To the input of the algorithm.

In order to attract the attention of the driver more strongly, it is necessary not to operate the simple lighting but to turn the plurality of guide lights to indicate the direction, or to sequentially flash according to time. In order to match them, Time Sync ). However, a method of sharing time synchronization information by connecting wireless communication between guides or a separate communication line is costly.

In the sight guiding facility that utilizes the lighting that drives the driver's eyes and makes the safety of driving in a bad place of the road or bad road, it is difficult to supply the power of the lighting by connecting commercial AC power. And the system that supplies power to the operation can prevent the situation that the sunlight is difficult to charge due to the bad weather and the failure to perform the function in the nighttime of the rainy and rainy weather, .

Since it is difficult to check the status of the battery and the charge remaining in the field, it is possible to use the communication means of the commercial mobile phone to receive the state information of the site at the central station and to transmit the site information and weather data To input the weather information of the base or site information, an algorithm that predicts the time of replacement of the battery is operated so that the gaze guidance lamp system can operate normally, and the timing can be easily confirmed, and the battery is replaced with a charged battery It is possible to contribute to the safety of the driver of the road vehicle even in the rainy season since the road guide line having the power source of solar power can operate normally even in the rainy season.

In order to attract the attention of the driver more strongly, it is necessary not to operate the simple lighting but to turn the plurality of guide lights to indicate the direction, or to sequentially flash according to time. In order to match them, Time Sync In order to supply battery power, a new information exchange communication through a power line connecting between the guide lights is required for the cost of the method of sharing the time sync information by connecting the radio communication or the communication line between the guide lights. Can be saved.

In order to share information about the time synchronization between the guide lights, it is possible to reduce the cost by connecting to the power line for power connection of the battery and using a very inexpensive means of communicating through the DC power line without installing a separate wireless or communication line.

FIG. 1 illustrates the concept of the invention.
① Replaceable ESS battery: A battery that is easily charged and easily replaced so that the guide light can work even when the sun is difficult to charge due to weather conditions.
② Solar Cell Solar Cell: means for supplying the power of the guidance light
③ LED sight guidance light: Lighting to guide the driver's gaze
④ HPLC connection: Power line communication connection for supplying battery power to each guide light and sharing Time Sync information by communication
⑤ Control station monitoring SW: Control SW that calculates and informs the point of time of battery exchange by utilizing field information and weather information DB information such as remaining battery level by commercial mobile phone communication means
⑥ weather information DB Server: source of weather information of government offices or weather-related private companies
(7) Commercial AC power connection: The present invention relates to a system in which a guide light operates normally in a remote area where commercial AC power is difficult to connect, and excludes a commercial AC power connection.

It is necessary to install the gaze guidance light for the safety of the road driver in a remote area where the commercial AC power is difficult to attract. Solar power can be used as a power source, but solar power can not be operated due to the power supply problem, even though it is the time when the function of the guide is the most necessary.

Using the easy-to-replace battery system, we can obtain the current charge remaining amount information and the weather forecast information of the weather data DB by using the commercial mobile phone communication means and calculate the expected exchange point of the battery through the calculation algorithm of the control station. If you take the battery to the site and exchange it, you can use the solar indicator to charge the sunlight in the rainy season. Of course, it may be necessary to urgently need to replace the current battery and to cope with it. In addition to the replacement of the battery, information on the failure of the guide light system can be transmitted to the controller through the cellular phone service network and managed accordingly.

The management SW for notifying the expected time of the battery replacement is installed in the computer system of the control station, and the SW transmits the information to the manager's mobile phone as an alarm, or a user who can attract audiovisual attention to the manager who monitors it It is desirable to implement an interface.

It is possible to automatically obtain future predicted weather information from an external weather data DB or to input an assumption that the current weather condition is maintained manually or to input a variable as to whether solar power generation is possible, The identification information, the remaining power of the battery, and the battery capacity information will be used.

Information on the remaining charge of the battery in the current guidance light system is reported to the computer system of the station utilizing the currently commercialized mobile communication service. Whether it is CDMA or GSM or LTE, there is no need to cover it.

It can be operated only at night. Or even when the day is dark and the environment is dark. The same effect can be achieved if the lighting system is operated only under a certain illumination level with an illuminance sensor to determine whether it is daytime or nighttime, or whether there is a need to operate it during the daytime in heavy rains or overcast weather.

If it is not possible to draw commercial AC power from nearby area, it is possible to use an alternating current power source to operate the guide light system. However, in this case, the discharged battery is charged with commercial AC power And it is outside the scope of the present invention to replace it with a charged battery only as in the present invention.

In order to enhance the effects such as direction indication or sequential blinking instead of simple lighting, it is necessary to adjust the time synchronization between the guide lights. Instead of connecting the wireless or separate communication line, apply the HPLC power line communication method to the power line connected to the battery This may be done inexpensively. It is possible to use ISM band wireless communication of ZigBee or other band of wireless communication method other than HPLC power line communication method, or to exchange time synchronization information by installing a wired separate communication line.

(Patent Document 1), since the effect of the cost reduction of the HPLC power line communication is very high, the priority is primarily given as a communication means for adjusting the time sink. Because it is preferable to connect the battery and each guide light with the power line, it does not matter if the battery is used for the solar cell installed in each guide lamp, but in case of a large battery to be used as a replacement type in the rainy season, This is because it is preferable to install one to two small numbers, and therefore, the power line communication method of Patent Document 1 in which the exchangeable battery and each guide lamp are connected by a power line and can communicate using the power line is useful.

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Claims (2)

1. A line-of-sight guide system for a road using a plurality of light-emitting devices using a photovoltaic power generation source not connected to a commercial AC power supply as a power source, the system comprising: a replaceable battery; A power line communication means for controlling each guide light through a power line connected to each guide light from a battery; Wireless communication means for transmitting the identification information of the system and the charge remaining amount information of the battery or the estimated time information that can be operated by the battery to the controller; The battery charge remaining amount information or the estimated time available for battery operation, or the weather data automatically acquired from the current weather or anticipated weather or the weather data DB and the charge remaining amount information of the battery or the battery operation estimated time information And a monitoring SW for calculating and reporting a point of time when the battery needs to be replaced; A charging standby battery charged in the control station and used for replacement in the field; Equipped with a system for charging the charging standby battery in the control station; In the case where the battery is difficult to charge due to the solar power generation, the exchangeable battery at the installation site is replaced with the charging standby battery charged at the installation site in accordance with the information provided by the monitoring SW, How to manage a guide light In Item 1, the power line communication means is composed of two or more wires connected to a power line connected to each guide light from a battery; Bridge circuit composed of a transistor or a MOSFET or an IGBT is connected to the output terminal of the battery, information for sharing a time sync, which is a reference for setting the relative order of flicker of each guide light, and time, (+) And (-) polarity conversion patterns of the voltage, and supplies the electric power to each of the guide lights; Each guide light is used as a power source for illumination and control by making a DC power source through a bridge circuit in an electricity having a pattern in which a polarity of a voltage is converted, and a time mapped to a conversion pattern of a polarity of (+ Decode the sync information; And the power of the photovoltaic power generation is increased by turning the blinking sequence of the guide lights or the blinking of the guide lights to blink by determining the time of blinking so as to make the blinking be visually directional using the decoded time synchronization information Road gaze guidance system

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