KR102368277B1 - System and method of synchronizing electronic displays - Google Patents

Abstract

Disclosed are a system and method for synchronizing an electronic display. A master electronic display used in the system for synchronizing the electronic display comprises: a communication unit, which is a passage to connect with at least one slave electronic display; a sensor unit measuring temperature and humidity; a synchronization unit receiving information on the temperature measured by the slave electronic display; and a display. Accordingly, the present invention can improve reliability of information and give a driver enough attention.

Description

SYSTEM AND METHOD OF SYNCHRONIZING ELECTRONIC DISPLAYS

The present invention relates to an electronic signboard synchronization system and method.

Existing electronic signs operate individually, and display information transmitted from a traffic server or a meteorological agency server. Therefore, when a plurality of electric sign boards are installed in a short distance and a thermometer/hygrometer is installed for each electric sign board, the displayed temperature/humidity information may be different because the measured values may be different for each electric sign board. As the temperature/humidity differs, the information displayed through the electronic signboard also differs, which often results in a situation in which the driver is not given sufficient attention.

KR 2020-0021146 A

An object of the present invention is to provide a system and method for synchronizing an electric sign board.

In order to achieve the object as described above, the master billboard according to an embodiment of the present invention includes a communication unit that is a connection path with at least one slave signboard; a sensor unit for measuring temperature and humidity; a synchronization unit for receiving information on the temperature measured by the slave electronic board; and a display. Here, the synchronization unit selects the lowest temperature by comparing the temperature measured by the sensor unit with the received temperature, and transmits information about the selected lowest temperature to the slave electronic board to synchronize the temperature, and the master electronic board and the The slave electronic board displays the same information related to the selected minimum temperature according to the synchronization, and the display displays traffic information or weather information and when the selected minimum temperature is less than or equal to a preset temperature, information related to the selected minimum temperature It switches its own screen to a screen to be displayed, and the master billboard and the slave signboard display information on different speed limits depending on the humidity even at the same minimum temperature, and when the humidity is low compared to when the humidity is high, the displayed The speed limit is low, and when there is an accident ahead, the master signage displays high-priority information first in consideration of the priority of accident information and information related to the selected minimum temperature, and the synchronization unit displays the information with the selected minimum temperature. The same information is displayed by synchronizing the master billboard and the slave signboard, but the displayed information may vary depending on the surrounding environment, and the information related to the selected minimum temperature includes icing information or speed limit information.

A slave electronic board according to an embodiment of the present invention includes: a communication unit that is a connection path with a master electronic board; a sensor unit for measuring temperature; a synchronization unit transmitting information on the measured temperature to the master electronic board; and a display. Here, the synchronization unit receives and synchronizes information on the temperature determined by the master electronic board, and displays information related to the received temperature through the display, and the synchronized temperature is the temperature measured by the master electronic board and It is the lowest temperature among the temperatures measured by the slave electronic board, the master electronic board and the slave electronic board display the same information related to the selected minimum temperature, and the display displays traffic information or weather information while the selected minimum temperature is When the temperature is below the set temperature, the screen is switched to a screen that displays information related to the selected minimum temperature, and the master electronic display panel and the slave electronic display panel display information on different speed limits according to humidity even at the same minimum temperature, When the humidity is low compared to when the humidity is high, the displayed speed limit is low, and the slave electric sign board considers the priority of accident information and information related to the selected minimum temperature when there is an accident ahead, and the information with high priority is given first. The synchronization unit displays the same information by synchronizing the master electric sign board and the slave electric sign board with the selected minimum temperature, but the displayed information may vary depending on the surrounding environment, and the information related to the selected minimum temperature is ice information or Includes speed limit information.

The electronic signboard synchronization system and method according to the present invention synchronizes the electric signboards to the lowest temperature among the temperatures measured on the electric signboards and displays related information, so that the reliability of information can be improved and sufficient attention can be given to the driver.

1 and 2 are diagrams illustrating an electronic signboard synchronization system according to an embodiment of the present invention.
3 is a flowchart illustrating a method for synchronizing an electric sign board according to a first embodiment of the present invention.
4 is a flowchart illustrating a method for synchronizing an electric sign board according to a second embodiment of the present invention.
5 is a flowchart illustrating a method for synchronizing an electric sign board according to a third embodiment of the present invention.
6 is a flowchart illustrating a method for synchronizing an electric sign board according to a fourth embodiment of the present invention.
7 is a flowchart illustrating a method for synchronizing an electric sign board according to a fifth embodiment of the present invention.
8 is a block diagram illustrating the configuration of an electric sign board according to an embodiment of the present invention.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software. .

The present invention relates to a system and method for synchronizing an electric billboard, which can synchronize neighboring or remote electric signs arranged on a road in terms of temperature.

For example, the electronic signboard synchronization system may synchronize the temperature of the electric signboards after measuring the temperature to display temperature-related information on the electric signboards. As a result, the information related to the temperature may be equally displayed on the electric sign boards. In particular, since the lowest temperature among the temperatures measured by the electric signs is the standard, information related to the minimum temperature, such as road icing and speed limit, can be stably provided through the electric signs. Accordingly, the driver may be sufficiently careful to reduce the risk of an accident. If the minimum temperature is not used as a standard, the risk of accidents is inevitably increased because related information may not be displayed on the electronic sign board even though freezing is expected.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are diagrams illustrating an electronic signboard synchronization system according to an embodiment of the present invention.

1 and 2 , the electronic sign synchronization system of this embodiment may include a first electric sign 100 , a second electric sign 102 , and a traffic server 200 . On the other hand, although only two electric sign boards 100 and 102 are illustrated in FIGS. 1 and 2, three or more adjacent electric sign boards may exist.

The first electric sign 100 is installed in an upward or downward direction (first direction) of the road, and may be a master electric sign.

The second electric sign 102 is installed in a direction opposite to the first direction (downward or upward direction, second direction), is adjacent to the first electric sign 100, and may be a slave electric sign. Here, the distance between the neighboring electric billboards is not particularly limited, and the electric billboards in the same area where the same temperature should be displayed can be called neighboring electric billboards.

Of course, the synchronized billboards are not limited to neighboring billboards, but may also be remote billboards.

According to one embodiment, the first electric sign 100 and the second electric sign 102 each measure the temperature using a temperature sensor, and the first electric sign 100 installed as the master electric sign board receives the temperature from the second electric sign 102 . Receiving the information, the first electric sign 100 compares the temperature it has measured with the temperature transmitted from the second electric sign 102, selects a low temperature, and synchronizes the electric signs 100 and 102 with the selected temperature can do it That is, information related to the selected temperature (temperature information, icing information, speed limit information, etc.) may be equally displayed on the electric signs 100 and 102 .

At this time, the entire images displayed on the electric signs 100 and 102 may be the same, the images may be different, but the same information related to the synchronized temperature may be displayed on a part of the images. As a result, the drivers of the up-traveling vehicle and the down-traveling vehicle can confirm the same information.

In particular, since a low temperature is selected and synchronized, when the weather becomes cold, ice information can be quickly displayed on the electric signs 100 and 102 . As a result, it is possible to prevent a traffic accident in advance by drawing the driver's attention.

On the other hand, although it has been described above that the two billboards 100 and 102 are synchronized, three or more billboards may be synchronized. In this case, one billboard will be set as the master signboard, and the remaining billboards will be set as slave signboards.

The traffic server 200 is connected to the electric sign boards 100 or 102 by wire or wireless, and may transmit and display various traffic information to the electric sign boards 100 and 102 .

That is, the electric signs 100 and 102 may display information provided from the traffic server 200 and information according to temperature synchronization.

In summary, the electronic sign synchronization system of the present embodiment can measure the temperature of the electric sign boards 100 and 102, respectively, and synchronize the electric sign boards 100 and 102 to the lowest temperature among the measured temperatures. That is, the electric sign boards 100 and 102 may equally display information related to the lowest temperature.

In FIG. 1 , the billboards 100 and 102 are illustrated to be installed in opposite directions, but may be installed spaced apart from each other in the same direction.

On the other hand, in the above, although the first electric sign 100 served as the master electric sign board, a separate server may receive temperature information from the electric sign boards 100 and 102 and synchronize the electric signs 100 and 102 to the lowest temperature.

Also, while the first electric sign 100 serves as a master electric sign, the master electric sign may be changed to another electric sign.

In addition, although only the traffic server 200 has been mentioned above, the electric sign 100 or 102 may receive and display weather information from a meteorological agency server or the like.

Hereinafter, the operation of the electronic signboard synchronization system of the present invention will be described in detail with reference to the accompanying drawings. For convenience of explanation, it is assumed that the two electric signs 100 and 102 are used, the first electric sign 100 is the master electric sign, and the second electric sign 102 is the slave electric sign.

3 is a flowchart illustrating a method for synchronizing an electric sign board according to a first embodiment of the present invention.

Referring to FIG. 3 , the first electric sign board 100 and the second electric sign 102 usually receive traffic information from the traffic server 200 and display it ( S300 ). At this time, since the electric billboards 100 and 102 are adjacent to each other, the same traffic information may be displayed, or different traffic information may be displayed depending on the uplink/downbound line.

Next, the electric signs 100 and 102 each include a temperature sensor, and the temperature is measured using the temperature sensors (S302). Such temperature measurement may be performed periodically, or the temperature measurement may be performed according to the request of the master electronic board 100 .

Subsequently, the electric signs 100 and 102 may synchronize the temperature when a preset temperature condition is satisfied ( S304 ). Specifically, the slave electronic board 102 transmits information about the measured temperature to the master electronic board 100, and the master electronic board 100 has the lowest temperature among the measured temperature and the temperature transmitted from the slave electronic board 102. may be selected, and information on the selected lowest temperature may be transmitted to the slave electronic board 102 . That is, the electric signs 100 and 102 may be synchronized with the lowest temperature.

For example, when freezing is expected to be minus 5 degrees below zero, the temperature may be synchronized under the control of the master sign board 100 . Here, the satisfaction of the preset temperature condition may be determined by whether the selected lowest temperature has reached the preset temperature. Accordingly, when the selected minimum temperature does not reach the preset temperature, temperature synchronization may not be achieved.

Of course, regardless of the satisfaction of the preset temperature condition, the electric signs 100 and 102 may be synchronized to the lowest temperature.

Subsequently, the electric signs 100 and 102 may display information related to the minimum temperature (temperature information, icing information, accident information, etc.) (S306). That is, the electric signs 100 and 102 may display information on the minimum temperature, display information such as ice related to the minimum temperature, or display information such as the minimum temperature and ice together.

According to an embodiment, the electric signs 100 and 102 display information on a synchronized temperature while displaying traffic information or display only traffic information, and when the lowest temperature corresponds to an icy state of the road, the traffic information The information disappears and icing information (eg a message to slow down as icing is expected) may be displayed. That is, the screens of the electric sign boards 100 and 102 may be switched to a screen displaying ice information.

Of course, ice-related information is not continuously displayed, but a screen displaying traffic information and a screen displaying ice information may be displayed alternately, and after a predetermined time has elapsed, traffic information and ice information may be displayed on one screen. there is.

That is, as long as information such as icing is displayed on the electric signs 100 and 102 when a preset temperature condition is satisfied while the electric signs 100 and 102 are displaying traffic information, the temperature synchronization method and the display method are various. can be transformed.

4 is a flowchart illustrating a method for synchronizing an electric sign board according to a second embodiment of the present invention.

Referring to FIG. 4 , the electric signs 100 and 102 may measure temperature/humidity by using a temperature sensor and a humidity sensor, respectively ( S400 ). This measurement may be performed under the control of the master electric sign 100, or may be performed periodically.

Subsequently, the slave electronic sign 102 may transmit information on the measured temperature/humidity to the master sign 100 (S402). However, when only the humidity information measured by the master sign board 100 is used, there is no need to separately transmit information about the humidity from the slave sign board 102 .

Subsequently, the master sign board 100 compares the temperature it has measured with the temperature transmitted from the slave sign board 102, selects the lowest temperature, and synchronizes the sign boards 100 and 102 with the selected temperature (S404). ). That is, the master sign board 100 may transmit information on the selected minimum temperature to the slave sign board 102 .

However, when displaying information related to the synchronized temperature, the electric signs 100 and 102 may be displayed in consideration of humidity information (S406). Specifically, the master electric sign 100 may distinguish the humidity, and may display different information if the humidity is different even at the same temperature.

For example, with respect to a temperature of 1 degree below zero, if the humidity is 50% or more, the speed limit is 50km, if the humidity is 40% to 50%, the speed limit is 48km, and if the humidity is 30% to 40%, the speed limit is 50km can be expressed as 40 km. That is, even at the same temperature, the speed limit and the like may vary depending on the humidity.

On the other hand, although only humidity is considered above, displayed information may vary depending on the surrounding environment such as sunlight and wind as well as humidity even at the same temperature.

5 is a flowchart illustrating a method for synchronizing an electric sign board according to a third embodiment of the present invention.

Referring to FIG. 5 , the electric signs 100 and 102 measure a temperature ( S500 ), and the slave electric sign 102 may transmit the measurement result to the master electric sign 100 ( S502 ).

Next, the master electronic board 100 determines whether the difference between the temperature measured by itself and the temperature measured by the slave electronic board 102 is equal to or greater than a preset value (S504).

If the difference in temperature is smaller than the preset value, the electric signs 100 and 102 are synchronized to the lowest temperature as in the above embodiments (S506), and information about the lowest temperature or information related to the lowest temperature can be displayed. There is (S508).

On the other hand, if the difference in temperature is equal to or greater than the preset value, the electric signs 100 and 102 may not perform synchronization (S510). If the temperature difference is large, the temperature sensor of the specific electric sign 100 or 102 may be broken, or the electric sign 100 or 102 may be installed in completely different conditions. For example, the master billboard 100 is installed in a sunny place, but the slave electric sign 102 may be installed in a tunnel, a windy place, a shady place, or the like. If the environmental difference is large, the road conditions in which the electric sign boards 100 and 102 are installed may be different, so not synchronizing the temperature may further lower the risk of an accident.

6 is a flowchart illustrating a method for synchronizing an electric sign board according to a fourth embodiment of the present invention.

Referring to FIG. 6 , the electric signs 100 and 102 may measure a temperature and perform a process of synchronizing the temperature ( S600 ).

However, although information related to the synchronized temperature (temperature information, icing information or speed limit information, etc.) is to be displayed, an accident-related information may need to be displayed because a forward accident has occurred (S602).

In this case, a priority may be set in advance between information display according to temperature synchronization and information display related to an accident. In general, information related to an accident may have a higher priority.

Accordingly, information related to the synchronized temperature and information related to an accident or other information may be displayed on the electric signs 100 and 102 according to priority (S604). For example, information related to temperature may be displayed after information related to an accident is displayed on the electric sign board 100 or 102 .

7 is a flowchart illustrating a method for synchronizing an electric sign board according to a fifth embodiment of the present invention.

Referring to FIG. 7 , when there are a master electric sign board and a plurality of slave electric sign boards, all electric sign boards measure a temperature, and the slave electric sign boards may transmit a measurement result to the master electric sign board (S700).

Then, the master electronic sign board can determine the electronic sign board to be synchronized among the slave sign boards (S702). You can synchronize with all slave signs, but you can also decide to synchronize with some of the slave signs under certain circumstances.

Subsequently, the master electronic sign board and the determined slave sign board may synchronize the temperatures (S704).

8 is a block diagram illustrating the configuration of an electric sign board according to an embodiment of the present invention.

Referring to FIG. 8 , the electronic sign board of this embodiment includes a control unit 800 , a communication unit 802 , a sensor unit 804 , a display 806 , an information management unit 808 , a synchronization unit 810 , and a storage unit 812 . may include

The communication unit 802 is a communication connection path between a traffic server, a meteorological agency server, or another electronic sign board.

The sensor unit 804 includes a temperature sensor and/or a humidity sensor, and may measure ambient temperature or humidity.

The display 806 may display various types of information.

The information management unit 808 may receive information from the traffic server or the Meteorological Agency server, and display the received information through the display 806 .

The synchronizer 810 may perform a process of synchronizing the temperature with another electronic sign board. For example, in the case of a master electric sign board, the synchronization unit 810 receives temperature information from the slave sign board, selects the lowest temperature among the received temperature and the measured temperature, and synchronizes the selected temperature with the slave sign board. there is.

Of course, in the case of a slave electronic sign board, information on the temperature measured by the master sign board may be sent, and the lowest temperature transmitted from the master sign board may be received and related information may be displayed through the display 806 .

The storage unit 812 may store various information such as temperature information and humidity information.

The control unit 800 may control overall operations of the components of the electric sign board.

On the other hand, the components of the above-described embodiment can be easily grasped from a process point of view. That is, each component may be identified as each process. In addition, the process of the above-described embodiment can be easily understood from the point of view of the components of the apparatus.

In addition, the technical contents described above may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiments or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. A hardware device may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

The above-described embodiments of the present invention have been disclosed for purposes of illustration, and various modifications, changes, and additions will be possible within the spirit and scope of the present invention by those skilled in the art having ordinary knowledge of the present invention, and such modifications, changes and additions should be regarded as belonging to the following claims.

100: first electric sign (master electric sign)
102: second electric sign (slave electric sign)
200: traffic server

Claims (4)

In the master electronic board,
a communication unit that is a connection path with at least one slave electronic board;
a sensor unit for measuring temperature and humidity;
a synchronization unit for receiving information on the temperature measured by the slave electronic board; and
including a display,
The synchronization unit selects the lowest temperature by comparing the temperature measured by the sensor unit with the received temperature, and transmits information about the selected lowest temperature to the slave electronic board to synchronize the temperature,
The master sign board and the slave sign board display the same information related to the selected lowest temperature according to the synchronization,
The display converts its own screen to a screen that displays information related to the selected minimum temperature when the selected minimum temperature is below a preset temperature while displaying traffic information or weather information,
The master billboard and the slave billboard display information on different speed limits depending on humidity even at the same minimum temperature, and the displayed speed limit is low when the humidity is low compared to when the humidity is high,
When there is an accident ahead, the master signage first displays information with high priority in consideration of the priority of accident information and information related to the selected lowest temperature,
The synchronization unit displays the same information by synchronizing the master billboard and the slave signboard with the selected lowest temperature, but the displayed information may vary depending on the surrounding environment,
The information related to the selected minimum temperature is a master signboard, characterized in that it includes icing information or speed limit information. The method of claim 1, wherein there are a plurality of slave electric sign boards,
The synchronizing unit synchronizes the temperature of only some of the slave electronic boards, and the other electronic boards do not synchronize the temperature. The method of claim 1, wherein the synchronization unit synchronizes to the selected temperature if the difference between the temperatures measured by the master electric sign board and the slave electric sign board is less than a preset value, and does not perform temperature synchronization if it is greater than or equal to the preset value Characterized by the master electric sign board. In the slave electronic board,
a communication unit that is a connection path with the master electronic board;
a sensor unit for measuring temperature;
a synchronization unit transmitting information on the measured temperature to the master electronic board; and
including a display,
The synchronization unit receives and synchronizes information on the temperature determined by the master electronic board, and displays information related to the received temperature through the display, wherein the synchronized temperature is the temperature measured by the master electronic board and the slave It is the lowest temperature measured by the electric sign board,
The master billboard and the slave signboard display the same information related to the synchronized temperature,
The display converts its own screen to a screen that displays information related to the selected minimum temperature when the selected minimum temperature is below a preset temperature while displaying traffic information or weather information,
The master billboard and the slave signboard display information on different speed limits depending on humidity even at the same minimum temperature, and the displayed speed limit is lower when the humidity is low compared to when the humidity is high,
In the case of a forward accident, the slave electronic signboard displays information with high priority in consideration of the priority of accident information and information related to the selected minimum temperature first,
The synchronization unit displays the same information by synchronizing the master billboard and the slave signboard with the selected lowest temperature, but the displayed information may vary depending on the surrounding environment,
The information related to the selected minimum temperature is a slave signboard, characterized in that it includes icing information or speed limit information.

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