KR102081424B1 - Apparatus for Controlling CCTV and Variable Message Signs on Roads and Tunnels - Google Patents

Abstract

Disclosed are an apparatus for controlling CCTVs and variable message signs provided in roads and tunnels. The apparatus for controlling variable message signs according to an embodiment of the present invention can comprise: an acquisition part acquiring traffic information generated based on video information from a control server; a display area grouping part grouping a plurality of light emitting diodes provided in a variable message sign into a plurality of display areas to group the same into a plurality of display areas; a status checking part checking information output status information of each of the plurality of display areas; a failure determination part comparing predetermined status reference information with the information output status information to determine whether each of the plurality of display areas is failed; and a display control part controlling the traffic information to be output to all or a part of the plurality of display areas based on the failure determination result.

Description

Apparatus for Controlling CCTV and Variable Message Signs on Roads and Tunnels}

The present invention relates to a device for controlling a CCTV and a road sign display provided in the road and tunnel.

The contents described in this section merely provide background information on the embodiments of the present invention and do not constitute a prior art.

The contents described in this section merely provide background information on the embodiments of the present invention and do not constitute a prior art.

Road Message Display (VMS) provided in roads and tunnels provides road users with real-time information on traffic, roads, weather conditions and control by construction. In particular, by providing direct information on the direction of the driver on the road to improve the driver's convenience, driving stability and traffic efficiency.

In general, a road sign indicating a failure, the administrator detects a failure through patrol, or even if a failure diagnosis device is provided, simply performs a failure alarm according to the failure diagnosis to the control center. A method for checking and repairing a failure of such a general road sign display device is described in Korean Patent No. 10-1762078. As such, the general road light sign device is left in a state in which a part of the traffic information previously outputted before the administrator manually resolves the failure for the failure that the administrator receives the discovery or notification. In other words, before repairing the failure of the road sign indicator, the traffic information is provided to the road users in a state where a failure occurs, thereby providing a wrong information to the road users.

The present invention divides the road light display device into a plurality of display areas, analyzes the state of each display area, and analyzes the state of each display area. It is a main object to provide a device for controlling the road light sign provided.

According to an aspect of the present invention, the road light display control apparatus for achieving the above object is an acquisition unit for obtaining the generated traffic information based on the image information from the control server; A display area grouping unit for grouping a plurality of light emitting diodes provided in the road sign display unit into a plurality of display areas by grouping the plurality of light emitting diodes into predetermined areas; A status checking unit for checking information output status information of each of the plurality of display areas; A failure determination unit which compares preset state reference information with the information output state information to determine whether each of the plurality of display areas has failed; And a display controller configured to control the traffic information to be output to all or part of the plurality of display areas based on the failure.

As described above, in the present invention, when a failure occurs in some display areas of the road sign, the failure notification including the failure location information is possible.

In addition, the present invention has an effect that can provide traffic information without missing information even if a failure occurs in some display area of the road sign.

1 is a block diagram schematically illustrating a road sign system according to an embodiment of the present invention.
2 is a block diagram schematically illustrating a road all-light display control apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a road all-light display control method according to an embodiment of the present invention.
FIG. 4 is an exemplary diagram for describing an operation of grouping a road light sign apparatus according to an exemplary embodiment of the present invention into a plurality of display areas.
Figure 5a is an exemplary view showing a state in which traffic information is normally output to the road sign display apparatus according to an embodiment of the present invention.
5B is an exemplary view illustrating a state in which traffic information is output to an alternative display area due to a failure of a road sign indicating apparatus according to an exemplary embodiment of the present invention.
6 is a block diagram schematically illustrating a road sign indicating apparatus according to an embodiment of the present invention.
7 is a block diagram showing the lightning rod management module of the road sign display according to an embodiment of the present invention.
8 is a view showing the configuration of the lightning protection module of the road sign display according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, preferred embodiments of the present invention will be described below, but the technical spirit of the present invention is not limited thereto, but may be variously modified and modified by those skilled in the art. Hereinafter, with reference to the drawings will be described in detail for the device for controlling the road sign display proposed in the present invention.

1 is a block diagram schematically illustrating a road sign system according to an embodiment of the present invention.

The road light sign system 10 according to the present embodiment includes a road light sign device (VMS: Variable Message Sign 20), a VMS integrated control device 30, and a control server 40. The road light sign system 10 of FIG. 1 is in accordance with one embodiment, not all of the blocks shown in FIG. 1 are required components, and in other embodiments, some blocks included in the road light sign system 10 are added. , Can be changed or deleted.

The road sign indicator 20 is a device that provides road users with real-time traffic information on traffic volume, traffic accidents, traffic jams, weather conditions, control situations due to construction, etc., to improve the efficiency of traffic flow and the safety of traffic. Say the equipment.

The road sign indicator 20 is an information output module including a plurality of light emitting diodes, a sensor module for measuring the overall state of the road sign indicator 20, lightning protection management for protecting the road sign indicator 20 from lightning strikes Modules and the like.

The information output module of the road sign indicator 20 is composed of N × M (N, M is a positive integer) light emitting diodes, and displays traffic information while implementing various colors according to whether each light emitting diode emits light and intensity. can do. For example, a plurality of light emitting diodes are positioned in a constant array on one side of the road light sign 20 and the plurality of light emitting diodes emit light to display traffic information under the control of the VMS integrated controller 30. .

The information output module of the road light marker 20 is divided into a plurality of display areas, and one display area may include at least one light emitting diode. Here, it is preferable that one letter of all the phrases for traffic information is displayed in one display area, but is not necessarily limited thereto.

The sensor module of the road sign indicator 20 senses a state of each of the plurality of light emitting diodes.

The sensor module of the road sign indicator 20 measures the state of brightness, voltage, current, etc. for each of the plurality of light emitting diodes, and transmits the state measurement value to the VMS integrated control device 30.

The sensor module of the road sign indicator 20 is described as measuring the state of each of the plurality of light emitting diodes, but is not necessarily limited thereto. The sensor module of the road sign indicator 20 measures a state such as luminance, voltage, current, etc. for each of the plurality of display areas including at least one light emitting diode, and measures the state measurement value for the VMS integrated control device 30. You can also send

The sensor module of the road light sign 20 may measure a state measurement value through a sensor embedded in the road light sign 20, but is not necessarily limited thereto, and may be in the form of an external sensor. The state measurement value of the sensor module may be sensed in real time or at a predetermined periodic interval, and the sensing interval may be set differently for each road light indicator 20 based on the position of the road light indicator 20.

The VMS integrated control device 30 controls the road light indicator 20 in cooperation with the control server 40. The VMS integrated control device 30 may be a computer, for example, and control may be made through a software program.

VMS integrated control device 30 according to an embodiment of the present invention controls the overall operation of the road light sign 20.

The VMS integrated control device 30 obtains the traffic information from the control sensor 40 or the CCTV 50, and outputs the obtained traffic information to the road light sign 20. In addition, the VMS integrated control device 30 obtains a state measurement value from the road light sign 20 and confirms the display state of the road light sign 20, and displays a fault when there is a display area where a failure occurs. The traffic information output from the area is moved to an alternative display area and controlled to be output. Here, the traffic information may be information generated based on the image information photographed by the CCTV 50, but is not necessarily limited thereto.

VMS integrated control device 30 according to an embodiment of the present invention is a control processor 100, memory 110, power input unit 120, VMS display unit 130, sensing information acquisition unit 140, communication unit 150 ) And an input / output interface 160.

The control processor 100 controls and processes the overall operation of the VMS integrated control device 30.

The control processor 100 obtains the traffic information from the control sensor 40 or the CCTV 50 and controls the obtained traffic information to be output to the road light sign 20.

The control processor 100 divides the road light marker 20 into a plurality of display areas and checks a state of each of the plurality of display areas. If there is a display area in which the failure occurs, the control processor 100 controls the traffic information output from the failure display area to be moved to the replacement display area for output.

The memory 110 stores data for the operation of the control processor 100. The memory 110 may be an SDRAM, a flash memory, or the like.

The power input unit 120 receives a driving power for operating the road light sign 20 and the VMS integrated control device 30. The power input unit 120 is connected to a separate power supply unit, switchboard, etc. to receive driving power. The power input unit 120 may be provided in the VMS integrated control device 30 to receive driving power, but is not limited thereto, and may be provided in each of the road light sign 20 and the VMS integrated control device 30. have.

The VMS display unit 130 expresses the traffic information through the road sign indicator 20 under the control of the control processor 100. Here, the VMS display unit 130 transmits the output text, the display position, the display setting, and the like, which are determined by the control processor 100, to the traffic light indicator 20 to output the traffic information.

The sensing information acquisition unit 140 obtains a state measurement value of the sensor module sensing a state of each of the plurality of light emitting diodes from the road light marking apparatus 20. The sensing information acquisition unit 140 obtains a state measurement value from a sensor module included in the road sign indicator 20, and transmits the obtained state measurement value to the control processor 100 of the road sign indicator 20. Determine if there is a failure.

The communication unit 150 performs an operation of transmitting and receiving a signal for displaying traffic information of the road sign indicator 20. The communicator 150 obtains the traffic information from the control server 40, and outputs the traffic information obtained under the control of the control processor 100 through the road light sign 20.

In addition, the communication unit 150 transmits a failure determination result regarding whether the road sign indicator 20 is broken by the control processor 100 to the control server 40. The control server 40 may be provided with a monitoring terminal for monitoring the road sign indicator 20 and the VMS integrated control device 30. The communication unit 150 communicates with the monitoring terminal using a wired communication method, a wireless communication method, and the like for monitoring the failure check. The wireless communication method may be used for remote diagnosis when the monitoring terminal is located remotely, such as the control server 40. The wired communication method is TCP / IP communication, serial communication (RS-232, RS-422, RS-485), optical communication, etc., and the wireless communication method is Bluetooth (Bluetooth), Zigbee (Wi-Fi), Wi-Fi (Wi-Fi). ), RoLa, etc. are possible.

The input / output interface 160 inputs / outputs system status information for diagnosing a failure of the road light sign 20. The input / output interface 160 may receive a state reference threshold value (state reference information) for determining whether a failure occurs by comparing a state measurement value of each of the plurality of light emitting diodes. For example, the input / output interface 160 may include an input / output interface 206, a universal asynchronous receiver / transmitter (UART, hereinafter referred to as UART), a joint test action group (JTAG, hereinafter referred to as JTAG), and versatile. General purpose input / output (GPIO, hereinafter referred to as GPIO). UART may be a UART serial port and JTAG may be a JTAG port. UART is an interface for asynchronous data transmission that transfers data by converting the form of parallel data in a serial manner. UARTs are typically used with communication standards such as EIA RS-232, RS-422, and RS-485. JTAG refers to a method of transmitting output data or receiving input data through a serial communication method for digital input / output of a specific node in a digital circuit. JTAG is standardized in IEEE 1149.1.

The control server 40 controls the overall operation of the road light sign 20 and the VMS integrated control device 30 included in the road light sign system 10. The control server 40 monitors the operation status of the road sign indicator 20, a diagnosis of a failure, and the like, and provides traffic information to be output through the road sign indicator 20 to the VMS integrated controller 30. Here, the traffic information refers to information for providing to the road user in real time about traffic, roads, weather conditions and control due to construction. The traffic information may be information generated based on image information captured by the CCTV 50, but is not necessarily limited thereto.

The control server 40 may be provided with a monitoring terminal for monitoring the road sign indicator 20 and the VMS integrated control device 30, but is not necessarily limited thereto.

The control server 40 may generate traffic information according to a manager's operation or input and transmit the traffic information to the VMS integrated control device 30, but is not necessarily limited thereto and may obtain traffic information from a separate external server.

The control server 40 may receive a failure determination result of whether or not the road sign indicator 20 has failed from the VMS integrated control device 30. The control server 40 may provide a repair request for repairing the road light sign 20 to a separate manager terminal (not shown) based on the received failure determination result.

The CCTV 50 captures an image of the traffic situation on the road and transmits the captured image information to the VMS integrated control device 30 or the control server 40. Image information taken by the CCTV 50 may be reflected in the traffic information through the image analysis in the control server 40.

Hereinafter, an operation of checking a communication state by transmitting and receiving a test signal in the road light sign system 10 will be described. Here, the road sign system 10 may be operated in conjunction with a lane control system (LCS), image acquisition device (CCTV) and the like.

The control server transmits test signals to the lane control device LCS, the road sign indicator VMS, and the image acquisition device CCTV, respectively. The control server sends the first test signal to the lane control device LCS. The control server transmits a second test signal to the road sign. The control server transmits a third test signal to an image acquisition device (CCTV).

The test signal includes an identification number of a test device, an identification number of a peripheral device connected to the test device, a check list for checking the operation of internal components included in the test device, a transmission time, and a reception time.

The first test signal may be included in an identification number of the lane control apparatus LCS, a road light indicator VMS connected to the lane control apparatus LCS and an identification number of the image acquisition apparatus CCTV, and included in the lane control apparatus LCS. A first check list for checking the operation of internal components, and check completion information.

The second test signal is transmitted to the identification number of the road sign (VMS), the lane control device (LCS) and the image obtaining device (CCTV) connected to the road sign (VMS), and the road sign (VMS). A second check list for checking the operation of the included internal components, and check completion information.

The third test signal is included in the identification number of the image acquisition device (CCTV), the lane control device (LCS) connected to the image acquisition device (CCTV), the identification number of the road light sign (VMS), and the image acquisition device (CCTV). A third check list for checking the operation of internal components, and check completion information.

The lane control device LCS checks the operation of the internal component included in the lane control device LCS based on the first check list, and records the check completion information according to whether the internal component is present or not.

The lane control device LCS copies and transmits the first test signal through a first path that is wired or wirelessly connected between the lane control device LCS and the road light marker VMS. The lane control device LCS records the time when the first test signal is copied and transmitted to the road light sign VMS in the original first test signal.

The lane control device LCS duplicates and transmits the first test signal through a third path that is wired or wirelessly connected between the lane control device LCS and the image acquisition device CCTV. The lane control device LCS records the time of copying and transmitting the first test signal to the image acquisition device CCTV in the first test signal of the original.

The road sign indicator (VMS) checks the operation of the internal components included in the road sign (VMS) based on the second check list, and records the check completion information according to whether the internal components are present or not. do.

The road sign indicator VMS copies and transmits a second test signal through a first path connected by wire or wirelessly between the road sign indicator VMS and the lane control device LCS. The road sign indicator VMS records the time of copying and transmitting the second test signal to the lane control device LCS in the second test signal of the original.

The road sign indicator VMS copies and transmits a second test signal through a second path that is wired or wirelessly connected between the road sign indicator VMS and the image acquisition device CCTV. The road sign indicator (VMS) records the time when the second test signal is copied and transmitted to the image acquisition device (CCTV) in the second test signal of the original.

The image acquisition device (CCTV) checks the operation of the internal components included in the road light sign (VMS) based on the third check list, and records the check completion information according to whether the internal components are present or not. .

The image acquiring device (CCTV) copies and transmits the third test signal through a third path connected by wire or wirelessly between the image acquisition device (CCTV) and the lane control device (LCS). The image acquiring device (CCTV) records the time when the third test signal is copied and transmitted to the lane control device (LCS) in the original third test signal.

The image acquiring device (CCTV) copies and transmits the third test signal through a second path connected by wire or wirelessly between the image acquisition device (CCTV) and the road sign. The image acquisition device (CCTV) records the time when the third test signal is copied and transmitted to the road sign (VMS) in the original third test signal.

The lane control device LCS compares the time when the copy of the second test signal acquired through the first path with the time when the copy of the third test signal acquired through the third path is received. The lane control device LCS checks the check completion information included in the second test signal of the copy, and records the time at which the second test signal of the copy is received and the check time of the check completion information in the second test signal of the copy. . The lane control device LCS confirms the check completion information included in the third test signal of the copy, and records the time at which the third test signal of the copy is received and the time of checking the check completion information in the third test signal of the copy. .

The road sign indicator (VMS) compares the time when the copy of the first test signal acquired through the first path with the time when the copy of the third test signal acquired through the third path is received. The road sign indicator (VMS) checks the check completion information included in the first test signal of the copy, and records the time at which the first test signal of the copy is received and the time of checking the check completion information in the first test signal of the copy. do. The road sign indicator (VMS) confirms the check completion information included in the third test signal of the copy, and records the time at which the third test signal of the copy is received and the time of checking the check completion information in the third test signal of the copy. do.

The image acquisition device (CCTV) compares the time when the copy of the second test signal acquired through the second path with the time when the copy of the first test signal acquired through the third path is received. The image acquiring device (CCTV) checks the check completion information included in the second test signal of the copy, and records the time at which the second test signal of the copy is received and the check time of the check completion information in the second test signal of the copy. . The image acquisition apparatus (CCTV) checks the check completion information included in the first test signal of the copy, and records the time when the first test signal of the copy and the check completion information are checked in the first test signal of the copy. .

The lane control device (LCS) determines (i) the time of receiving the first test signal of the original, which recorded the time of copying and transmitting the first test signal, (ii) the time of receiving the second test signal of the copy and the time of confirming check completion information. A second test signal of the recorded copy, (iii) a third test signal of the recorded copy of the time at which the third test signal of the copy was received and the time at which the check completion information was confirmed is transmitted to the control server.

The road sign indicator (VMS) is (i) the second test signal of the original recording the time of copying and transmitting the second test signal, (ii) the time of receiving the first test signal of the copy and the time of confirming the inspection completion information The first test signal of the recorded copy, and (iii) transmits the third test signal of the recorded copy of the time of receiving the third test signal of the copy and the time of checking the check completion information to the control server.

The image acquisition apparatus (CCTV) determines (i) the third test signal of the original recording the time of copying and transmitting the third test signal, (ii) the time of receiving the first test signal of the copy and the time of checking the check completion information. The second test signal of the recorded copy of the first test signal of the recorded copy, the time of receiving the second test signal of the copy and the time of confirming the check completion information is transmitted to the control server.

The control server receives the first test signal of the original, the second test signal of the copy, and the third test signal of the copy from the lane control device LCS. The control server receives the first test signal of the copy, the second test signal of the original, and the third test signal of the copy from the road sign. The control server receives the first test signal of the copy, the second test signal of the copy, and the third test signal of the original from the image acquisition device (CCTV).

The control server may analyze the received original three test signals to determine the operating states of the lane control device LCS, the road sign indicator VMS, and the image acquisition device CCTV.

The control server analyzes 9 test signals of the received original and the copy, and the communication status between the lane control device (LCS) and the road light sign (VMS), the road light sign (VMS) and the image acquisition device (CCTV). The communication state and the communication state between the lane control device LCS and the image acquisition device CCTV may be determined.

2 is a block diagram schematically illustrating a road all-light display control apparatus according to an embodiment of the present invention.

The road all-optical display control apparatus 200 according to the present embodiment includes an acquisition unit 201, a display area grouping unit 210, a state checking unit 220, a failure determining unit 230, a replacement area determining unit 240, and The display control unit 250 is included. The road all-optical display control apparatus 200 of FIG. 2 is according to an exemplary embodiment, and not all of the blocks shown in FIG. 2 are essential components, and in some embodiments, some of the blocks included in the road all-optical display control apparatus 200 are included. This can be added, changed or deleted.

The road electric light display control apparatus 200 is a device for controlling the overall operation of the road light indicator 20, and controls the operation of the output of traffic information, diagnosis of failure, output of traffic information replacement in case of failure. The road all-optical display control device 200 according to the present embodiment may be the control processor 100 of the VMS integrated control device 30, but is not necessarily limited thereto, and may perform all or some functions of the VMS integrated control device 30. It may be a device implemented to include.

On the other hand, the road light display control device 200 is described as a separate device from the road light display device 20, but is not necessarily limited thereto, such as the road light display device 20 including a road light display control unit. It may be implemented in one device.

The obtaining unit 201 may obtain image information and traffic information from the control server 40 or the CCTV 50. The obtaining unit 201 may include an image obtaining unit 202 for obtaining image information and a traffic information obtaining unit 204 for obtaining traffic information, but is not limited thereto.

The acquirer 201 may acquire the image information and the traffic information, respectively, and reflect the traffic state of the image information in the traffic information. Meanwhile, the acquirer 201 may obtain only traffic information generated based on the image information.

The display area grouping unit 210 divides the plurality of light emitting diodes included in the road sign apparatus 20 into predetermined areas and divides the plurality of light emitting diodes into a plurality of display areas.

The display area grouping unit 210 divides the display area grouping unit into a display area having a predetermined size based on the traffic information obtained from the control server 40. In detail, the display area grouping unit 210 determines the number of light emitting diodes included in one display area based on the character size of the traffic information, and divides the plurality of display areas according to the determined number of light emitting diodes.

The display area grouping unit 210 displays a * b (a: number of rows in the display area, b: number of columns in the display area, and a and b are positive integers) on one side of the road light marker 20. Can be divided into areas. Here, each display area has the same size as each other, and the number and arrangement of light emitting diodes included in each display area are preferably the same. For example, the display area grouping unit 210 may group a plurality of light emitting diodes provided on one side of the road light sign apparatus 20 into 2 * 10 display areas, and 10 * in each display area. Ten light emitting diodes may be included.

The state checking unit 220 checks information output state information for each of the plurality of display areas.

The state checking unit 220 checks state measurement values such as luminance, voltage, and current for each of the plurality of display areas. Here, the state measurement value may be the result of sensing by the sensor module of the road sign indicator 20.

The state checking unit 220 confirms information output state information for each display region for outputting traffic information based on state measurement values for each of the plurality of display regions.

The state checking unit 220 checks the state of the display area by comparing the first state reference information with the information output state information.

When the display area is in a normal state as a result of comparing the first state reference information with the information output state information, the state checking unit 220 outputs the traffic information through the display control unit 250.

Meanwhile, when the display area is in an abnormal state as a result of comparing the first state reference information with the information output state information, the state checking unit 220 transmits the information output state information of the corresponding display area to the failure determination unit 230 and fixes it. Let it be determined.

The state checking unit 220 determines that the display area is in an abnormal state when one measurement value of state measurement values such as luminance, voltage, and current for each of the plurality of display areas is less than a reference value of the first state reference information. . Here, the abnormal state refers to a state for determining a candidate of a failure display area which may be a display area in which a failure occurs. The status checker 220 may check an abnormal state display area for a temporary error, a self-improveable problem, or the like.

The failure determining unit 230 compares the second state reference information with the information output state information to determine whether each of the plurality of display areas has failed. The failure determining unit 230 determines that the display area is a failure when at least one of the state measurement values such as luminance, voltage, and current for each of the plurality of display areas is less than the reference value of the second state reference information. do. Here, the reference value included in the second state reference information has a higher value than the reference value included in the first state reference information, thereby accurately determining whether the display area has failed.

The failure determination unit 230 transmits a failure notification signal to the control server 40 or the manager terminal (not shown) when a failure display area exists among the plurality of display areas.

When the failure determination unit 230 determines that any one of the plurality of display areas is a failure, the replacement area determination unit 240 determines a replacement display area for outputting traffic information by replacing the failure display area. do.

The replacement area determiner 240 selects a display area adjacent to the failure display area among the plurality of display areas as the replacement display area. For example, when the left and right display areas exist based on the failure display area, the replacement area determiner 240 may select one of the left and right display areas as the replacement display area.

The replacement area determiner 240 may select an area in which no traffic information is output among adjacent display areas of the failure display area as the replacement display area. For example, the replacement area determiner 240 selects the right display area as the replacement display area when the traffic information is output in the left display area and the traffic information is not output in the right display area in the left and right display areas of the failure display area. do.

Meanwhile, when there are a plurality of adjacent display areas of the failure display area, the replacement area determiner 240 compares information output state information of each of the plurality of adjacent display areas, and relatively compares among the plurality of adjacent display areas according to the comparison result. An adjacent display area having a high output state value can be selected as the replacement display area.

In addition, the replacement area determiner 240 may select the replacement display area in consideration of a phrase unit including a character output from the failure display area. Specifically, the replacement area determiner 240 checks a phrase unit including a character output from the failure display area, and if there is a display area capable of outputting by moving the whole phrase unit, the alternative phrase determination unit 240 may output the entire phrase unit. The display area can be selected as an alternative display area. Here, the phrase unit is preferably a word, but may also be a unit such as a word or a morpheme. For example, if the display area for outputting '3' character is out of the traffic information output for 'Hongcheon 34 minutes', the replacement area determiner 240 is configured for '34 minutes' including' 3 'characters. Check the phrase unit, and move the '34 minutes' to see if there are three display areas that can be output. If there are three display areas that can be output by moving '34 minutes ', the replacement area determining unit 240 moves the three display areas to the replacement display area so that the entire phrase unit for '34 minutes' can be outputted. You can choose.

Meanwhile, when the replacement area determiner 240 selects an alternative display area for moving and outputting all of the phrase units displayed in one column, the replacement area determiner 240 adds an alternative display area for moving and outputting the entire phrase unit displayed in another column. Can be selected.

The replacement display area for moving and outputting the entire phrase unit in the replacement area determiner 240 may be a display area in which traffic information is not output. However, the alternative display area is not limited thereto. For example, the replacement area determiner 240 may select the replacement display area by moving the start display area for outputting the entire phrase unit to one side, that is, changing the right display area to be the start display area.

The display controller 250 performs an operation of controlling the traffic information to be displayed on the road light sign 20. The display controller 250 controls the traffic information to be output to all or part of the plurality of display areas based on whether or not the plurality of display areas have failed.

The display control unit 250 outputs the traffic information to the plurality of display areas, and when the failure display area exists, the traffic information output from the failure display area is displayed on the replacement display area determined by the replacement area determiner 240. To control.

The display control unit 250 may control the traffic information output from the failure display area to be displayed in an alternative display area in which no information is output, but is not necessarily limited thereto.

In the case of the alternative display area where the existing traffic information is being output, the display control unit 250 may stop the output of the existing traffic information and move the entire phrase unit of the traffic information to be displayed so as to correspond to the alternative display area. have.

3 is a flowchart illustrating a road all-light display control method according to an embodiment of the present invention.

The road all-light display control apparatus 200 groups the display areas in order to output the traffic information obtained from the control server 40 (S310). Specifically, the road all-optical display control apparatus 200 determines the number of light emitting diodes included in one display area based on the character size of the traffic information, and divides the plurality of display areas according to the determined number of light emitting diodes.

The road all-light display control apparatus 200 confirms information output state information for each of the plurality of display areas (S320). The road all-optical display control apparatus 200 confirms state measurement values such as luminance, voltage, and current for each of the plurality of display regions. Here, the state measurement value may be a result sensed by the sensor module of the road sign indicator 20.

The road all-optical display control apparatus 200 determines whether each of the plurality of display areas is broken by comparing the state reference information with the information output state information (S330). When there is a display area below the reference value of the state reference information among the plurality of display areas, the road all-light display control apparatus 200 determines that the display area is a failure.

The road all-optical display control device 200 transmits a failure notification signal to the control server 40 or the manager terminal (not shown) when a failure display area exists among the plurality of display areas (S340).

When it is determined that any one of the plurality of display areas is a failure, the road all-light display control apparatus 200 determines a replacement display area for outputting traffic information by replacing the failure display area (S350). Here, the road all-optical display control apparatus 200 may select a display area adjacent to the failure display area among the plurality of display areas as the replacement display area.

The road all-optical display control device 200 controls the traffic information to be output to all or part of the plurality of display areas based on whether the plurality of display areas have failed (S360).

In FIG. 3, the steps are described as being sequentially executed, but are not necessarily limited thereto. In other words, since the steps described in FIG. 3 may be applied by changing or executing one or more steps in parallel, FIG. 3 is not limited to the time series order.

The road light display control method according to the present embodiment described in FIG. 3 may be implemented as an application (or a program) and recorded on a recording medium readable by a terminal device (or a computer). The recording medium readable by the terminal device (or computer) for recording an application (or program) for implementing the road all-light display control method according to the present embodiment is for recording all kinds of data that can be read by the computing system. Device or media.

FIG. 4 is an exemplary diagram for describing an operation of grouping a road light sign apparatus according to an exemplary embodiment of the present invention into a plurality of display areas.

The road light display control apparatus 200 groups the plurality of light emitting diodes included in the road light display apparatus 20 into predetermined areas and divides the plurality of display areas 410 through 440.

The road light display control apparatus 200 may determine a cover surface provided on one side of the road light display device 20 by a * b (a: number of rows of the display area, b: number of columns of the display area, a, b is Positive integers). Here, each display area has the same size as each other, and the number and arrangement of light emitting diodes included in each display area are preferably the same.

Referring to FIG. 4, the road all-optical display control apparatus 200 may group a plurality of light emitting diodes provided on the cover surface of the road all-light display apparatus 20 into 2 * 10 display areas. Herein, 10 * 10 light emitting diodes may be included in each display area, but the number of light emitting diodes may be changed according to the total number of light emitting diodes.

As shown in FIG. 4, the display area of the first column may be grouped into the first-first display area 410 to the first-10th display area 420, and the display area of the second column may be displayed in the second-first display. The display panel 430 may be grouped into the regions 430 to the second-10 display region 440. Here, the number of columns or rows may be changed according to the text size of the output information. That is, the number of light emitting diodes included in one display area may be changed according to the text size of the traffic information.

FIG. 5A is an exemplary view illustrating a state in which traffic information is normally output on a road sign indicating apparatus according to an embodiment of the present invention, and FIG. 5B is a view showing a replacement display area due to a failure of a road sign indicating apparatus according to an embodiment of the present invention It is an exemplary diagram showing a state in which traffic information is output.

5A and 5B, traffic information displayed based on the display area illustrated in FIG. 4 will be described as an example.

As shown in FIG. 5A, the road sign indicator 20 may be located at 'Hongcheon 34 minutes' as the first traffic information and 'Hongcheon 18 minutes' as the second traffic information under the control of the road sign display control device 200. Display traffic information for

The road light indicator 20 may include the first-first display area 510, the first-second display area 512, the first-third display area 514, the first-fourth display area 516, and the first-first display area 510. The first traffic information is displayed in the first column using the -5 display area 518 or the like, and the 2-1th display area 520, the 2-2th display area 522, and the 2-3th display area 524 are displayed. ), The second traffic information is displayed in the second column using the 2-4th display area 526, the 2-5th display area 528, and the like. As shown in FIG. 5A, one character is output in one display area.

Referring to FIG. 5B, when it is determined that the 2-3 display area 524 is a failure, the road all-optical display control device 200 outputs traffic information through the replacement display area. 5B, (a) to (c) show the result of outputting traffic information to the replacement display area.

Referring to FIG. 5B (a), the road all-optical display control device 200 displays the second-3 display area 524 on the adjacent first alternative display area based on the second display area 524 that is the failure display area. ) By moving the '1' character of the second traffic information that was output in the).

Referring to FIG. 5B (b), the road all-optical display control apparatus 200 includes the entire phrase unit including the letter '1' output from the second display area 524 that is the failure display area, that is, the second traffic. Move the '18 minutes' of information to output. In other words, the road all-optical display control device 200 displays the entire phrase unit ('18 minutes' of the second traffic information) output from the 2-3 display area 524 in the second-4 display area 526. Change the output to start to print.

The road all-optical display control apparatus 200 may adjust the position of the phrase unit output in another column while controlling to output the phrase unit including the character output in the failure display area as shown in FIG. 5B (b). have.

Referring to FIG. 5B (c), the road all-optical display control apparatus 200 includes the entire phrase unit including the letter '1' output from the 2-3 display area 524 that is the failure display area, that is, the second traffic. After moving the '18 minutes' of information and outputting, the entire '34 minutes' phrase unit of the first traffic information that is aligned with the '18 minutes' of the second traffic information is output. That is, the road all-optical display control device 200 moves and outputs the entire '18 minutes 'phrase unit of the second traffic information, and then outputs '34 minutes' of the first traffic information based on the alternative display area of the moved second traffic information. 'Control to output the entire sentence unit.

6 is a block diagram schematically illustrating a road sign indicating apparatus according to an embodiment of the present invention.

The road sign indicator 20 includes an information output module 610 including a plurality of light emitting diodes, a sensor module 620 for measuring the overall state of the road sign indicator 20, and a road sign indicator 20 from lightning strikes. Lightning rod management module 630 for protecting the may include.

The information output module 610 of the road sign indicator 20 is composed of N × M (N, M is a positive integer) light emitting diodes, and implements various colors depending on whether or not each light emitting diode emits light. Information can be displayed. For example, a plurality of light emitting diodes are positioned in a constant array on one side of the road light sign 20 and the plurality of light emitting diodes emit light to display traffic information under the control of the VMS integrated controller 30. .

The information output module 610 of the road sign indicator 20 may be divided into a plurality of display areas, and one display area may include at least one light emitting diode. Here, it is preferable that one letter of all the phrases for traffic information is displayed in one display area, but is not necessarily limited thereto.

The sensor module 620 of the road sign indicator 20 senses a state of each of the plurality of light emitting diodes.

The sensor module 620 of the road sign indicator 20 measures the state of brightness, voltage, current, etc. for each of the plurality of light emitting diodes, and transmits the state measurement value to the VMS integrated control device 30.

The sensor module 620 of the road sign indicator 20 is described as measuring the state of each of the plurality of light emitting diodes, but is not necessarily limited thereto. The sensor module 620 of the road light marker 20 measures a state of luminance, voltage, current, etc. for each of the plurality of display areas including at least one light emitting diode, and controls the state measurement value for the VMS integrated control. It may also transmit to the device 30.

The sensor module 620 of the road light sign 20 may measure a state measurement value through a sensor embedded in the road light sign 20, but is not limited thereto, and may be in the form of an external sensor. The state measurement value of the sensor module 620 may be sensed in real time or at a predetermined periodic interval, and the sensing interval may be set differently for each road light sign device 20 based on the position of the road light sign device 20. .

The lightning rod management module 630 of the road light indicator 20 performs an operation for protecting the road light indicator 20 from lightning strikes. In detail, the lightning protection management module 630 performs an operation of aligning the lightning protection module in order to adjust the separation when the separation of the lightning protection module occurs. The lightning rod management module 630 of the road sign indicator 20 will be described in detail with reference to FIGS. 7 and 8.

7 is a block diagram showing the lightning rod management module of the road sign display according to an embodiment of the present invention.

Referring to FIG. 7, the lightning protection management module 630 capable of protecting against lightning strikes according to an embodiment of the present invention includes a lightning protection module 710, a monitoring unit 720, a lightning protection module alignment control unit 730, and a screen output control unit ( 740, a ground fault blocking unit 750, and an operation environment controller 760.

Lightning rod management module 630 capable of protecting from lightning according to an embodiment of the present invention checks the abnormal signs of the road light indicator 20 for lightning protection in real time, by remotely adjusting the lightning rod alignment, The device for preventing the failure of the road sign indicator 20 caused by the occurrence of.

The road sign indicator 20 provides road users with real-time information on traffic, roads, weather conditions and control due to construction. In particular, by providing direct information on the direction of the driver on the road to improve the driver's convenience, driving stability and traffic efficiency.

Due to bad weather, it is difficult to check the integrated traffic information due to a failure of the road sign indicator 20 when a lightning strike occurs, and when a driver fails to check a message output on a road sign, a critical situation is missed. Can be in

Lightning rod management module 630 that can be protected from lightning according to an embodiment of the present invention checks the abnormal signs of the road light indicator 20 for lightning protection in real time, and measures the lightning rod remotely to adjust the equipment It can increase the reliability.

The lightning arrester module 710 sends an impact current caused by a lightning strike to the ground grounded to the outside.

The monitoring unit 720 is provided at a position adjacent to the lightning protection module to obtain state information on the state of the lightning protection module. Here, the state information on the state of the lightning protection module is information including an alignment angle of the lightning rod, whether the lightning rod is separated from the ground, whether the ground wire is buried, whether the lightning rod protrudes, and the connection state between the lightning rod and the ground wire.

The lightning protection module alignment control unit 730 receives the state information of the lightning protection module from the monitoring unit and determines the ground fixing step and the alignment position of the lightning protection module.

The screen output controller 740 controls the message output information of the screen output to the road light sign 20. The screen output control unit 740 receives and outputs the integrated traffic information transmitted from the integrated traffic information server, and the received integrated traffic information is output in the form of a message through a sign of the road light sign 20. Here, the integrated traffic information is information including real time traffic information, construction information, accident information, closed circuit TV information, weather warning and weather warning.

The screen output controller 740 controls the message color, size, and output form of the integrated traffic information and outputs it in a form that the driver can intuitively check. It can also be output along with a preset warning sound and voice message.

The earth leakage blocking unit 750 is for preventing a power short circuit when the short circuit of the lightning protection module is damaged, and blocks a leakage current input to the power input terminal of the road light sign 20.

The operating environment controller 760 checks the operating environment state of the road sign indicator 20. Specifically, the sensor unit detects the temperature and humidity inside the road light sign apparatus 20, and when the operation information detected by the sensor unit is determined to be an abnormal environment, generates an environmental control signal related to the countermeasure and generates a corresponding heater. And an environmental control unit comprising a fan.

In addition, further comprising a communication unit (not shown), the external integrated traffic information server 760 is connected via a wireless communication network, the lightning protection module alignment control unit 730, the ground fixing step and the alignment position information of the determined lightning protection module Is transmitted to the integrated traffic information server, the first control information is stored in the integrated traffic information server in real time.

The screen output controller 740 transmits second control information including the message output information of the screen to the integrated traffic information server, and the second control information is stored in the integrated traffic information server in real time.

The operation environment control unit 760 checks the operation environment state of the road light sign apparatus 20. Specifically, the sensor unit detects the temperature and humidity inside the road light sign 20 and generates an environmental control signal related to countermeasures when it is determined that the operation environment information of the device detected by the sensor unit is abnormal. To the environmental control unit including the corresponding heater and fan.

The third control information including the generated environmental control signal information is transmitted to the integrated traffic information server, and the third control information is stored in the integrated traffic information server in real time.

The lightning protection module alignment control unit and the screen output control unit set the road light sign apparatus 20 by receiving the last stored control information among the control information stored in real time from the external integrated traffic information server when re-power is applied after the short circuit is cut off. do.

When the power is applied again after the leakage is interrupted, it is inconvenient to input the existing setting value from the beginning, but the road sign indicator 20 which can protect from lightning strikes according to an embodiment of the present invention integrates control information in real time. By transmitting to the traffic information server and storing, the last setting value can be set immediately, so that it can be used as it is when changing the setting value according to the failure of the road signboard, thereby reducing the setting time.

8 is a view showing the configuration of the lightning protection module of the road sign display according to an embodiment of the present invention.

Referring to FIG. 8, the lightning protection module 710 of the lightning protection module 630 capable of protecting against lightning according to an embodiment of the present invention includes a housing 710, a lightning rod 720, a ground wire 730, and an insulation unit ( 740, lightning arrester module 750.

The lightning arrester module 710 sends an impact current caused by a lightning strike to the ground grounded to the outside. The lightning arrester module 710 sends a shock current caused by lightning strikes to the ground, and serves to prevent various devices constituting the lightning arrester management module 630 from being damaged by lightning strikes.

The housing 710 is installed on the ground, and includes a through hole 714 in the bottom surface 713 in contact with the ground, and includes a top surface 711 that is movable left and right. In addition, the top surface 711 includes a lightning rod hole 712 for protruding the lightning rod.

Lightning rod 720 is located inside the housing, is formed to protrude a portion of the upper surface of the housing, inducing lightning. Lightning rod 720 is preferably formed of a rod of pointed metal material.

Lightning rod 720 is capable of adjusting the height of the portion passing through the lightening rod hole 712 by using a lifting module (not shown). Accordingly, it is also included on the inside of the housing on a clear day, it is possible to rise to induce lightning if rain is expected. In addition, since the rotation of the lightning rod 720 is not performed at all, twisting of the ground wire electrically connected to the lightning rod can be prevented.

A portion of the lower end of the lightning rod 720 is open so that the terminals of the ground wire 730 may be drawn inward and electrically connected to each other.

The ground line 730 has one end 732 buried in the ground and the other end 731 is electrically connected to the lower end of the lightning rod 720.

The insulating part 740 penetrates the through hole 732 and surrounds one end 732 of the ground line embedded in the ground.

The lightning protection module fixing part 750 fixes the lightning protection module to the ground so that the ground line embedded in the ground is fixed.

The lightning protection module fixing part 750 includes a lightning rod fixing part 751 and a housing fixing part 753.

The lightning rod fixing portion 751 is provided in a ring shape surrounding at least a portion of the lightning rod, and the lightning rod is fixed so as not to tilt.

The housing fixing unit 753 presses the bottom surface of the housing to fix the space between the housing and the ground so that the space disappears.

The monitoring unit 720 includes an image capturing unit 710, an alignment detecting unit 820, and a space detecting unit 830.

The image capturing unit 710 photographs the lightning rod as a subject from the side of the lightning protection module fixing unit. The image capturing unit 710 may be configured to include a small camera for visually checking the state from the outside. The image capturing unit 710 may include an angle adjuster (not shown) for efficiently checking a state according to a change in position.

The alignment detector 820 detects the inclination of the lightning rod in the image photographed by the lightning rod as a subject.

The separation sensor 830 detects the separation by measuring the separation distance between the housing and the ground.

The lightning protection module alignment control unit 730 determines a ground fixing step and an alignment position of the lightning protection module based on whether the lightning rod sensed by the alignment detection unit is inclined and whether the lightning detection unit detects the separation.

Specifically, the lightning protection module alignment control unit 730 includes an alignment position control unit 840, the ground fixing control unit 850.

When the alignment detection unit 820 detects the inclination of the lightning rod, the alignment position controller 840 moves the upper surface of the housing to align the lightning rod.

When the ground fixing control unit 850 detects the separation between the housing and the ground in the separation detecting unit 830, the handle of the pressing step adjusting unit is moved, the tooth is rotated in accordance with the movement of the handle portion pressing the pressing portion By pressing the pressing portion, the housing is fixed in close contact with the ground.

The above description is merely illustrative of the technical spirit of the embodiments of the present invention, and those skilled in the art to which the embodiments of the present invention pertain various modifications without departing from the essential characteristics of the embodiments of the present invention. Modifications may be possible. Therefore, the embodiments of the present invention are not intended to limit the technical spirit of the embodiments of the present invention, but to describe, and the scope of the technical spirit of the embodiments of the present invention is not limited by these embodiments. The protection scope of the embodiments of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the embodiments of the present invention.

10: Road sign system
20: road light sign 30: VMS integrated control device
40: control server
100: control processor 110: memory
120: power input unit 130: VMS display unit
140: sensing information acquisition unit 150: communication unit
160: input and output interface
200: road light display control device 201: acquisition unit
210: display area grouping unit 220: status checking unit
230: failure determination unit 240: replacement area determination unit
250: display control unit

Claims (10)

An acquisition unit for obtaining the generated traffic information based on the image information from the control server;
A display area grouping unit for grouping a plurality of light emitting diodes provided in the road sign display unit into a plurality of display areas by grouping the plurality of light emitting diodes into predetermined areas;
A status checking unit for checking information output status information of each of the plurality of display areas;
A failure determination unit comparing the predetermined state reference information with the information output state information to determine whether each of the plurality of display areas has failed; And
And a display controller configured to control the traffic information to be output to all or a part of the plurality of display areas based on the failure.
If it is determined that any one of the plurality of display areas is a failure, the failure determination unit further includes a replacement area determination unit configured to select a replacement display area for outputting the traffic information by replacing the failure display area. ,
The replacement area determination unit selects an area in which no traffic information is output among adjacent display areas of the failure display area as the replacement display area, and the display control unit displays the traffic information output from the failure display area in the replacement display area. Road light display control device characterized in that the control to be displayed on. The method of claim 1,
The display area grouping unit,
And determining the number of light emitting diodes included in one display area based on the text size of the traffic information, and classifying the plurality of display areas according to the number of light emitting diodes. The method of claim 2,
The state check unit,
Confirming at least one state measurement value of luminance, voltage, and current for each of the plurality of display areas, and checking the information output state information for each display area for outputting the traffic information based on the state measurement value; Road light display control device characterized in that. delete delete delete delete The method of claim 1,
The replacement area determiner,
Checking a phrase unit including a character output from the fault display area, and if there is a display area that can be output by moving the entire phrase unit, selecting the corresponding display area as an alternative display area,
And the display controller is configured to control the entire text unit to be displayed by moving to the alternative display area. The method of claim 1,
The road light display control device,
Road light display control device characterized in that for checking the communication state by transmitting and receiving a test signal to check the communication state. delete

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