KR102636895B1 - Smart led display system with power control using sensor - Google Patents

Abstract

The present invention relates to a power-controlled smart LED signboard system, which includes a signboard comprised of a plurality of LED modules; A sensor unit including a short-range sensor that detects a human body or a long-range sensor that detects an object; And when the buffer time is set and the sensor unit detects that there is no human body or object, the luminance at which the content of the LED module is output when the detected state that there is no human body or object is maintained during the buffer time. and a control unit that controls the change, wherein the short-range sensor detects infrared rays emitted from the human body, and the long-distance sensor detects laser or electromagnetic waves reflected from an object.

Description

Smart LED display system with power control using detection sensors {SMART LED DISPLAY SYSTEM WITH POWER CONTROL USING SENSOR}

The present invention relates to a power-controlled smart LED signboard system that increases power efficiency by detecting a person or vehicle and selectively outputting a screen only when detected.

LED signboards are eco-friendly video display devices that have good visibility and are used semi-permanently for a variety of purposes both outdoors and indoors. LED signs are inorganic self-luminous devices whose brightness can be adjusted according to the amount of power supplied, and have a high contrast ratio close to complete black, so they are used for outdoor advertising, information promotion, and traffic guidance. In particular, LED signboards are highly expandable depending on the situation and environment due to modularized LED modules. Large outdoor electronic signs have good visibility even from a distance and are used for traffic guidance, promotions, notifications, etc., and are often used for information purposes.

However, because the conventional electronic signboard always outputs the content of the electronic signboard, it continuously consumes power even though there is no information provider nearby, resulting in a waste of power by outputting LEDs. Even if it is a semi-permanent LED signboard, as the usage time increases, the brightness decreases and the lifespan of the LED decreases, which can lead to defects and failures. When it comes to electronic signboards, power efficiency plays a large part in the product quality that determines purchase. Unnecessary power consumption of electronic signs causes increased operating costs and reduced lifespan.

Accordingly, a technology is required for effective power management by linking sensors to the electronic signboard to produce normal output only when there is a viewer, and to reduce output when there is no viewer. As of yet, power control technology linking sensors has not been disclosed in electric signboards based on the above-mentioned awareness of the problem.

However, in the case of home displays or small displays such as monitors or TVs, there is Korean Patent Publication No. 10-2023-0015660 (hereinafter referred to as the ‘prior patent’) as a related technology that reflects the above-mentioned awareness of the problem. The prior patent discloses a power-saving display system through continuous detection of the human body that saves power by detecting the amount of infrared rays generated from the human body.

As in prior patents, displays used for home use or are small in size have a limited viewing distance, and the subject who primarily views the display is a person. Additionally, the viewing direction is mainly limited to the front. Accordingly, detection may be relatively easy because the detection distance and range are limited.

However, electronic signboards are mainly placed on top of large buildings, high up in large plazas to display displays in all four directions, or installed in vast plain areas to provide information when vehicles are passing on highways. It is installed so that the vehicle can be checked.

These medium to large sized electronic signs are equipped with multiple LED modules and have particularly high power consumption. Additionally, in the case of these medium to large sized electronic signs, there are many situations in which selective power control is required. Currently, in Korea, there are many areas where electronic signs are placed even though they are quiet roads with not many vehicles. Vehicles driving on highways in sparsely populated non-metropolitan areas come across electronic display boards located in clusters. While these electronic signs are less efficient in providing information, the cost burden due to power consumption and maintenance is high.

The audience for medium to large sized electronic displays may be not only people but also vehicles. In addition, medium to large sized electronic signs have a problem in that it is not easy to detect the subject checking the signboard due to the location where they are placed and the nature of the product.

Korean Patent Publication No. 10-2023-0015650

The present invention seeks to provide a power-controlled smart LED display system that selectively displays an LED display through detection of people or vehicles through a combination of detection sensors.

The present invention combines different types of detection sensors, detects people or vehicles in the surrounding area, including the front of the electronic signboard, and lowers the brightness or prevents the screen from being displayed when there is no traffic, and when the passage of people or vehicles is detected, the screen is not displayed. We aim to provide a power-controlled smart LED signboard system that can reduce unnecessary power consumption by selectively displaying the signboard.

In addition, the present invention seeks to provide a power-controlled smart LED signboard system that can optimize the driving power of the detection sensor for power control.

The present invention relates to a power-controlled smart LED signboard system, which includes a signboard comprised of a plurality of LED modules; A sensor unit including a short-range sensor that detects a human body or a long-range sensor that detects an object; And when the buffer time is set and the sensor unit detects that there is no human body or object, the luminance at which the content of the LED module is output when the detected state that there is no human body or object is maintained during the buffer time. and a control unit that controls the change, wherein the short-range sensor detects infrared rays emitted from the human body, and the long-distance sensor detects laser or electromagnetic waves reflected from an object.

In one embodiment, the sensor unit includes a plurality of PIR sensors as the short-range sensor, and some of the PIR sensors among the plurality of PIR sensors are installed at a location spaced apart from the electronic signboard by a first viewing distance, and the A communication module that communicates with the operation server may be provided to transmit the detected result at the distance of the first visibility to the operation server.

In one embodiment, the sensor unit includes a plurality of PIR sensors as the short-distance sensors, and the PIR sensors may be disposed in each of the four directions of front-back-left-right of the electronic signboard.

In one embodiment, the sensor unit includes a radar (RADAR) sensor as the long-distance sensor, and the radar sensor reads the time, distance, or waveform of radio waves reflected from an approaching object to detect fixed and moving objects. When a moving object is detected, it can be judged as an object detected.

In one embodiment, the sensor unit includes a plurality of radar (RADAR) sensors as the long-distance sensor, and some of the radar sensors among the plurality of radar sensors are installed at a location spaced apart from the electronic sign by a second viewing distance. , a communication module that communicates with the operation server of the electronic signboard is provided, and the result detected at the second viewing distance can be transmitted to the operation server.

In one embodiment, the sensor unit is provided with a communication module that communicates with the operation server of the electronic signboard, and transmits the sensed data to the operation server, and the control unit may receive the data of the sensor unit from the operation server. there is.

In one embodiment, the control unit transmits control information of a clock signal, which is a driving signal of the sensor unit, to the operation server, and the sensor unit may be controlled on/off based on the clock signal received from the operation server. .

In one embodiment, the sensor unit is set to a first time interval, which is the duty ratio of a clock signal with an on/off interval for operation control, and the first time interval is increased when a human body or object is not detected. , it can be set to decrease when a human body or object is detected by the sensor unit.

In one embodiment, the control unit transmits control information of a clock signal, which is a driving signal of the sensor unit, to the operating server of the electronic signboard, wherein the clock signal is a variable signal whose duty ratio is changed, and wherein the duty ratio is a first time interval. It can be set to increase when the human body or object is not detected by the sensor unit, and to decrease when the human body or object is detected by the sensor unit.

In one embodiment, it further includes a data storage unit that stores data from the sensor unit received from the control unit, and the data storage unit includes classification of a human body or object as a detected target, a detected time zone, and sensing information about the detected target. You can build a content exposure database sheet including.

In one embodiment, the data storage unit may calculate the number of viewers and the efficiency of the exposure time zone for each period in which the content of the electronic signboard was exposed, based on the sensed object, time zone, and detection information of the content exposure database sheet.

In addition, the present invention controls the power of the electronic signboard by communicating with an electric signboard composed of a plurality of LED modules, a sensor unit including a short-range sensor for detecting a human body or a long-distance sensor for detecting an object, and an operation server that operates the electric signboard. A power control method for a smart LED signboard system, comprising: receiving sensing data from the sensor unit from the operation server; And when the buffer time is set and the sensor unit detects that there is no human body or object, the luminance at which the content of the LED module is output when the detected state that there is no human body or object is maintained during the buffer time. Another feature includes a step of transmitting a control signal to change to the operation server.

Electronic signboards have good visibility and are used for a variety of outdoor and indoor purposes. Outdoor electric signboards are usually large in size, so the larger the screen, the more power it requires. Due to the nature of electronic signs whose main purpose is to convey information, outdoor electronic signs displayed according to that purpose consume a lot of power depending on the size and shape of the signboard when no one is watching the content.

According to the present invention, there is an advantage of improving the power efficiency and lifespan of the electric signboard by controlling the output of the electric signboard by determining whether a target viewing the content output of the electric signboard is detected.

In addition, according to the present invention, viewing objects that require power control include not only people but also objects, such as vehicles, and it is possible to increase the power efficiency of electric signboards installed in suburban areas where people are sparse and management is difficult.

In addition, according to the present invention, the driving power of the sensor for detecting the viewing object can also be optimized during the power control process. In particular, the sensor's detection data is received through the operation server, and the sensor is installed in a separate location from the electronic signboard so that the subject's There is an advantage in that detection accuracy can be increased and the sensor's driving signal can be optimized through sensor data feedback.

In addition, according to the present invention, the number of viewers by exposure period and the efficiency of the exposure time can be derived as statistical data through the content exposure database, which provides information on the effective operation of the electronic signboard and information on the appropriate installation location or form of the electronic signboard. can do.

Figure 1 shows the configuration of a power-controlled smart LED signboard system using a detection sensor according to an embodiment of the present invention.
Figure 2 shows an example configuration of a short-range sensor according to an embodiment of the present invention.
Figure 3 shows an example configuration of a long-distance sensor according to an embodiment of the present invention.
Figure 4 shows a method of controlling the sensor unit of the control unit according to an embodiment of the present invention.
Figure 5 shows a data storage unit according to an embodiment of the present invention.
Figure 6 is a flowchart of a power control method of a smart LED signboard system according to an embodiment of the present invention.
Figure 7 shows the processing flow of the control unit according to an embodiment of the present invention.

The various embodiments described in this document are illustrative for the purpose of clearly explaining the technical idea of the present invention and disclosure, and are not intended to limit them to specific embodiments. The technical idea of the present invention and disclosure includes various modifications, equivalents, alternatives, and embodiments selectively combined from all or part of each embodiment described in this document. In addition, the scope of rights of the technical idea of the present invention and disclosure is not limited to the embodiments or specific descriptions thereof presented below.

Unless otherwise defined, terms used in this document, including technical or scientific terms, may have meanings commonly understood by those skilled in the art to which the present invention and disclosure pertain.

Expressions such as “includes”, “may include”, “provided”, “may be provided”, “have”, “may have”, etc. used in this document refer to the function, It means that an operation or component exists, and does not exclude the existence of other additional features. In other words, such expressions should be understood as open-ended terms that imply the possibility of including other embodiments.

The singular expressions used in this document may include the plural meaning, unless the context indicates otherwise, and this also applies to the singular expressions described in the claims.

As used herein, “A, B, and C,” “A, B, or C,” “A, B, and/or C,” or “at least one of A, B, and C,” “A, B , or at least one of C," "at least one of A, B, and/or C," "at least one selected from A, B, and C," "at least one selected from A, B, or C," "A Expressions such as “at least one selected from , B, and/or C” may mean each listed item or all possible combinations of the listed items. For example, “at least one selected from A and B” means: (1) A, (2) at least one of A, (3) B, (4) at least one of B, (5) at least one of A and B It may refer to at least one of, (6) at least one of A and B, (7) at least one of B and A, and (8) both A and B.

As used in this document, the expression "based on" is used to describe one or more factors affecting the decision, act of judgment, or action described in the phrase or sentence containing the expression, and the expression refers to the It does not exclude additional factors that may influence the decision, act or action of judgment.

As used in this document, the expression that a certain component (e.g., a first component) is “connected” or “connected” to another component (e.g., a second component) means that the certain component is It may mean not only being directly connected or connected to another component, but also connecting or connected through another new component (eg, a third component).

As used in this document, the expression "configured to" means "set to," "having the ability to," "changed to," "made to," and "capable of," depending on the context. It can have meanings such as “possible” and is distinguished from the meaning of consist.

Hereinafter, various embodiments of the present disclosure will be described with reference to the attached drawings. In the accompanying drawings and descriptions of the drawings, identical or substantially equivalent components may be assigned the same reference numerals. Additionally, in the description of various embodiments below, overlapping descriptions of the same or corresponding components may be omitted, but this does not mean that the corresponding components are not included in the embodiments.

Figure 1 shows a configuration diagram of a power-controlled smart LED signboard system 1 according to an embodiment of the present invention.

Referring to FIG. 1, the power-controlled smart LED signboard system 1 may include a sensor unit 20, a display board 30, and a control unit 40. The electronic signboard 30 can transmit and receive video content through the operation server 10, and the operation server 10 may include a data storage unit 50.

The operation server 10 may be an administrator's computer terminal that performs operational control of the electronic signboard 30. The operation server 10 transmits images, text, and data to the controller of the electronic signboard 30. The operation server 10 transmits content to be output on the screen of the electronic signboard 30, receives information from the electronic signboard 30, and can monitor the status of the electronic signboard 30. The operation server 10 may include a data storage unit 50, which will be described later.

The electronic sign 30 may include a plurality of LED modules, a sub-controller that controls the LED modules, and a main controller that controls the sub-controller. This is a well-known configuration of the electronic sign board 30, and detailed description will be omitted. The electronic signboard 30 can receive content signals from the operation server 10 provided in the operation room to the main controller and display them in various ways, such as video, graphics, text, and Internet information. The electronic signboard 30 according to this embodiment is a medium-to-large display installed indoors and outdoors and may include an electric signboard in the form of a four-sided display.

The sensor unit 20 may include a short-range sensor 21 that detects a human body or a long-range sensor 23 that detects an object. The sensor unit 20 according to this embodiment mainly uses the short-range sensor 21 in the case of the electronic signboard 30 installed in an indoor area or an open area such as a crowded square, and in the case of an electric signboard 30 installed in a suburban area or on the side of a road. In the case of (30), the long-distance sensor (23) can be mainly used.

In the sensor unit 20, a short-range sensor can detect infrared rays emitted from the human body, and the long-range sensor can detect laser or electromagnetic waves reflected from an object.

The sensor unit 20 includes a plurality of PIR sensors 21 as the short-range sensors, and some of the PIR sensors 21 of the plurality of PIR sensors 21 are spaced apart from the electronic sign 30 by the first viewing distance. A communication module 200 is installed in the location and communicates with the operation server of the electronic signboard 30, so that the result detected at the first viewing distance can be transmitted to the operation server 10.

The sensor unit 20 is provided with a communication module 200 that communicates with the operation server 10 of the electronic signboard 30, and transmits the sensed data to the operation server 10, and the control unit 40 is provided with the operation server 10. ) can receive data from the sensor unit 20.

In this embodiment, a plurality of PIR sensors 21, which are short-range sensors, may be provided on the electronic sign 30 in the direction in which the display of the electronic sign 30 is displayed, and at this time, they are installed at a distance from the electronic sign 30. Sensors can be combined to detect a human body at a distance where the electronic signboard 30 can be viewed, even if it is a short-distance detection method.

Figure 2 shows an example configuration of a short-range sensor according to an embodiment of the present invention.

All objects with temperature have radiation (infrared rays within electromagnetic waves). The surface temperature of the human body is generally around 20~35℃, and the distribution of emitted infrared rays generally peaks around 10㎛. The PIR sensor 21 can detect the presence or absence of a person by detecting the change in infrared rays. The pyroelectric element of the PIR sensor 21 may be based on PZT (lead zirconate titanate) or LiTaO3 (lithium tantalate). In general, a PIR module consists of a pyroelectric element, a timer, and an amplifier. The pyroelectric element is self-polarizing, so its surface is always charged, but when it is in thermal equilibrium, it is neutralized with ions in the air and no output is produced. When infrared rays are incident here, a slight temperature rise occurs near the surface of the device and a pyroelectric effect appears, breaking the equilibrium state. At this time, the sensing operation of the sensor can be performed using the voltage change. Since the PIR sensor 21 only outputs when infrared rays change when incident and when blocking light, it cannot detect a stationary human body and can only detect when the human body moves. When an object is too far or too close, it can detect surroundings. Sensitivity decreases as the temperature change weakens, but it has good sensitivity when approached by an object whose temperature is significantly different from the surrounding temperature.

Considering the detection characteristics of the PIR sensor 21, in this embodiment, an additional PIR sensor 21 is remotely installed at a location spaced apart from the electronic signboard 30 by the first viewing distance. The first viewing distance may be set as the maximum distance at which visibility of the electronic signboard 30 is secured, and this may be determined by reflecting the size and output conditions of the electronic signboard 30.

Each PIR sensor 21 may be equipped with a communication module 200 and its own battery. The PIR sensor 21, which is spaced apart from the electronic signboard 30, transmits the sensed data to the operation server 10 instead of transmitting it to the electronic signboard 30. As will be described later, all sensors of the sensor unit 20 may be linked to the communication module 200, respectively. In particular, the communication module within the electronic signboard 30 may be used as the sensor mounted on the electronic signboard 30.

Preferably, the sensor unit 20 can transmit the sensor's sensed data to the operation server 10 rather than the main controller of the electronic signboard 30, and the sensor data passes through the operating server 10 to the electronic signboard 30. It can be transmitted to the main controller, which is the control unit 40. Processing of such data reduces the burden of loading memory in the electronic signboard 30, and allows information useful for statistical processing of big data and operation of the electronic signboard 30 to be secured as the data passes through the operation server 10. In addition, it is possible to manage monitoring and maintenance information of multiple sensor modules through the operation server 10, and reduce the data processing burden on the control unit 40 to reduce errors occurring when controlling the brightness of the electronic sign board 30. You can.

In an example of installing the PIR sensor 21, a plurality of PIR sensors 21 may be provided on the left and right sides of the electronic sign board 30, respectively. Some of the PIR sensors 21 may be installed in places where many people gather or at a distance equal to the first viewing distance, which is the maximum distance at which content output from the electronic signboard 30 can be viewed. The detection angle of the PIR sensor 21 is about 110°~130°, and the maximum detection distance can be 10m~15m. Since the detection distance is relatively short, a separate PIR sensor (21) can be installed at the rear to expand the detection distance and range. If the location where the electronic signboard 30 is installed is outside, the electronic signboard 30 is provided at a height where people slightly look up, so in this case, the PIR sensor 21 can be placed at the bottom of the electronic signboard 30. The PIR sensors 21 are provided at both ends of the electronic signboard 30 in the horizontal direction, so that a detection angle can be secured without blind spots that may occur when detecting a human body. In another embodiment, when the electronic sign 40 is a display that is displayed in four directions, the PIR sensor 21 may be disposed on each of the four directions of the front-back-left-right of the electric sign 30.

The sensor unit 20 is a long-distance sensor and includes a RADAR sensor 23, and the radar sensor 23 reads the time, distance, or waveform of radio waves reflected from approaching objects to detect fixed and moving objects. , and when a moving object is detected, it can be judged as a case of detecting an object.

Figure 3 shows an example configuration of a long-distance sensor 23 according to an embodiment of the present invention. In this embodiment, the sensor unit 20 is a long-distance sensor and includes a plurality of RADAR sensors 23, and some of the radar sensors 23 among the plurality of radar sensors receive a second view from the electronic display board 30. It is installed at a location spaced apart by the distance, and a communication module 200 is provided that communicates with the operation server 10 of the electronic signboard 30, so that the result detected at the second viewing distance can be transmitted to the operation server 10. The second viewing distance may refer to the distance between the road and the electronic signboard 30.

The radar sensor 23 calculates the distance to the object based on the time it takes for a specific radio wave to be reflected and returned by emitting a specific radio wave, and read the intensity, size, and shape of the reflected radio wave to determine whether it is a stationary object or a moving object. You can. Additionally, for moving objects, the moving speed can be calculated. The radar sensor 23 is capable of long-distance detection and has characteristics that enable detection through interference such as snow or rain.

The embodiment of FIG. 3 illustrates an electronic signboard 30 installed on the side of a road in a suburban area. In the case of this electronic signboard 30, detection of the human body can be minimized, and the viewing target of the electronic signboard 30 is mainly vehicles. The radar sensor 23 is installed to be spaced apart from the electronic signboard 30 and may be arranged to face the lane of the road. The radar sensor 23 can be arranged to view both forward and reverse directions, and can transmit sensed data to the operation server 10 by communicating with the operation server 10 through the communication module 200.

The radar sensor 23 transmits the sensor's detection data to the operation server 10, not the main controller of the electronic signboard 30, and the sensor data passes through the operation server 10 to the control unit 40 of the electronic signboard 30. Can be transmitted to the main controller. Processing of such data reduces the burden of loading memory in the electronic signboard 30, and as the data passes through the operation server 10, it is possible to secure information useful for statistical processing of big data and operation of the electronic signboard 30. In addition, it is possible to manage monitoring and maintenance information of multiple sensor modules through the operation server 10, and reduce the data processing burden on the control unit 40 to reduce errors occurring when controlling the brightness of the electronic sign board 30. You can.

The sensor unit 20 is set to a first time interval, which is the duty ratio of the clock signal at which the on/off interval for operation control is set, and the first time interval is increased when a human body or object is not detected, and the sensor unit ( 20), it can be set to decrease when a human body or object is detected. The sensor unit 20 is controlled through a separate operation signal, and the efficiency of power consumed during the sensor driving process can also be optimized. The sensor unit 20 can be controlled by a variable signal whose duty ratio of the operation signal is variable. The first time interval may mean the duty ratio of the clock signal, but may also be set as an interval indicating the on/off interval. For example, an interval from an on to an on signal or an interval from an off to an off signal may be set as the first time interval.

The first time interval in the operation signal of the sensor unit 20 may be increased by a preset delay time when a human body or object is not detected. In general, when a human body or object is not detected, power may be wasted unnecessarily in a time when there are fewer people or vehicles, which requires monitoring through continuous sensor operation. Therefore, when there are fewer people or vehicles, the first time interval of the driving signal of the sensor unit 20 is increased so that the sensor can be driven with efficient power. On the other hand, when a human body or object is detected again by the sensor unit 20, the first time interval is reduced to return to the original signal.

Figure 4 shows a method of controlling the sensor unit 20 of the control unit 40 according to an embodiment of the present invention.

Referring to FIG. 4, the control unit 40 transmits control information of the clock signal, which is a driving signal of the sensor unit 20, to the operation server 10, and the sensor unit 20 transmits the clock received from the operation server 10. It can be controlled on/off based on a signal.

The control unit 40 transmits control information of the clock signal, which is a driving signal of the sensor unit 20, to the operation server 10 of the electronic signboard 30. The clock signal is a variable signal whose duty ratio is changed, and the duty ratio is the first The time interval can be set to increase when a human body or object is not detected by the sensor unit 20, and to decrease when a human body or object is detected by the sensor unit 20.

The control unit 40 sets the buffer time, and when the sensor unit 20 detects that there is no human body or object, the contents of the LED module are maintained when the detected state that there is no human body or object is maintained for the buffer time. It can be controlled to change the output luminance. The control unit 40 detects that there is no human body or object, and when this is maintained for the buffer time, it can output a control signal to reduce the brightness of the electronic signboard 40. Alternatively, the control unit 40 may output a control signal that turns off the output of the electronic sign board 40.

In this embodiment, the buffer time may be set longer than the first time interval. The buffer time prevents the brightness of the electronic signboard 30 from being unnecessarily adjusted according to erroneous detection by the sensor unit 20.

The data storage unit 50 may store data of the sensor unit 20 received from the control unit 40. Figure 5 shows the data storage unit 50 according to an embodiment of the present invention.

Referring to FIG. 5, the data storage unit 50 can build a content exposure database sheet including classification of a human body or object as a detected object, a detected time zone, and detection information about the detected object.

The content exposure database sheet can construct the data detected by the sensor unit 20 as big data. As a data structure for building big data, the sensing information of the sensor is set as each item, and the data can be constructed in a matrix structure by classifying the measurement targets.

The data storage unit 50 can calculate the number of viewers and the efficiency of the exposure time zone for each period in which the content of the electronic signboard 30 was exposed based on the sensed object, time zone, and detection information in the content exposure database sheet.

Information calculated from the content exposure database may be the time period when the electronic signboard 30 is most exposed, the viewing audience at that time, information on liquidity, and information on reliability. These data can be used as a reference for more efficient power operation of the electronic signboard 30, or can help adjust the appropriate installation location of the electronic signboard 30 or determine the shape of the electronic signboard 30.

As another embodiment of the present invention, a method for controlling the power of a smart LED signboard system may be disclosed. Figure 6 is a flowchart of a power control method of a smart LED signboard system according to an embodiment of the present invention.

A method of controlling the power of a smart LED signboard system may be a method that operates on the system of the sensor unit 20, the control unit 40, the LED module of the signboard 30, and the data storage unit 50 described above.

An operation server ( 10), the power control method of the smart LED display system that controls the power of the display board 30 by communicating with the display board 30 can be performed in the control unit 40 described above.

Figure 7 shows the processing flow of the control unit according to an embodiment of the present invention.

The power control method of the smart LED signboard system 1 according to this embodiment includes receiving sensing data of the sensor unit 20 from the operation server 10; And when the buffer time is set and the sensor unit 20 detects that there is no human body or object, the luminance at which the content of the LED module is output when the detected state that there is no human body or object is maintained for the buffer time. It may include; transmitting a control signal to change to the operation server 10.

Although the technical idea of the present invention and disclosure has been explained by the embodiments described above, the technical idea of the present invention includes various substitutions that can be made within the range understandable by a person of ordinary skill in the technical field to which the present invention pertains. Includes variations and changes. Additionally, it is to be understood that such substitutions, modifications and alterations may be included within the scope of the appended claims.

1: Power-controlled smart LED signboard system using detection sensors
10: Operational server
20: sensor unit
21: Short range sensor
23: Long range sensor
200: communication module
30: Electronic signboard
40: control unit
50: data storage unit

Claims (12)

An electronic sign composed of multiple LED modules;
A sensor unit including a short-range sensor that detects a human body or a long-range sensor that detects an object; and
When the buffer time is set and the sensor unit detects that there is no human body or object, the luminance at which the content of the LED module is output is changed when the detected state that there is no human body or object is maintained during the buffer time. It includes a control unit that controls the
The sensor unit,
The short-range sensor detects infrared rays emitted from the human body, the long-range sensor detects laser or electromagnetic waves reflected from objects, and a communication module is provided to communicate with an external operation server that controls the electronic signboard through the control unit. Sending data to the operation server,
The control unit,
Receiving control information of the clock signal, which is a driving signal of the sensor unit, from the operation server and transmitting the driving signal to the sensor unit,
A power-controlled smart LED signboard system using a detection sensor, wherein the sensor unit transmits data to the operating server, and the receiving target of the driving signal is the control unit.
According to claim 1,
The sensor unit,
The short-range sensor includes a plurality of PIR sensors,
Some of the PIR sensors among the plurality of PIR sensors,
A power-controlled smart LED signboard system using a detection sensor, which is installed at a location spaced apart from the signboard by a first viewing distance, and wherein the communication module transmits the result detected at the first viewing distance to the operation server. .
According to claim 1,
The sensor unit,
The short-range sensor includes a plurality of PIR sensors,
The PIR sensor is,
A power-controlled smart LED signboard system using detection sensors, which are arranged on each of the four sides of the signboard in the front-rear-left-right direction.
According to claim 1,
The sensor unit,
The long-range sensor includes a RADAR sensor,
The radar sensor detects fixed and moving objects by reading the time, distance, or waveform of radio waves reflected from approaching objects, and determines when a moving object is detected as when an object is detected. A power-controlled smart LED signboard system using a detection sensor.
According to claim 1,
The sensor unit,
The long-range sensor includes a plurality of RADAR sensors,
Some of the radar sensors among the plurality of radar sensors are,
A detection sensor installed at a location spaced apart from the electronic signboard by a second viewing distance, and provided with a communication module that communicates with the operating server of the electronic signboard, and transmitting the results detected at the second viewing distance to the operating server. A power-controlled smart LED signboard system.
delete delete According to claim 1,
The sensor unit,
A first time interval, which is the duty ratio of a clock signal with a set on/off interval for operation control, is set,
The first time interval is set to increase when a human body or object is not detected and to decrease when a human body or object is detected from the sensor unit. A power-controlled smart LED signboard system using a detection sensor.
delete According to claim 1,
It further includes a data storage unit that stores data from the sensor unit received from the control unit,
The data storage unit,
A power-controlled smart LED signboard system using a detection sensor, which is characterized by building a content exposure database sheet including classification of human bodies or objects as detected objects, detected time zone, and detection information about the detected objects.
According to claim 10,
The data storage unit,
Based on the detected object, time zone, and detection information in the content exposure database sheet,
A power-controlled smart LED signboard system using a detection sensor, which calculates the number of viewers for each period during which the content of the signboard was exposed and the efficiency of the exposure time.
A smart LED signboard system that controls the power of the signboard by communicating with an electric signboard composed of multiple LED modules, a sensor unit including a short-range sensor that detects a human body or a long-distance sensor that detects objects, and an operation server that operates the signboard. In the power control method,
Receiving sensing data from the sensor unit from the operating server; and
When the buffer time is set and the sensor unit detects that there is no human body or object, the luminance at which the content of the LED module is output is changed when the detected state that there is no human body or object is maintained during the buffer time. It includes; transmitting a control signal to the operation server,
The sensor unit transmits infrared detection data emitted from the human body by a communication module provided in the sensor unit and sensor data detected by the long-distance sensor of laser or electromagnetic waves reflected from an object to the operation server,
A control unit provided in the main controller of the electronic signboard and communicating with the operation server receives control information of a clock signal, which is a driving signal of the sensor unit, from the operation server and transmits the driving signal to the sensor unit,
A power control method for a smart LED signboard system, wherein the sensor unit receives a driving signal set by the operation server through the control unit.