RU2648563C1 - Method for determining the position of video modules within the group - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: invention relates to network communication technologies. Method for determining the positions of video modules within a group is characterized in that for determining positions of video modules within a group, the group controller transmits a command to one or more video modules to activate one or more signal emitters, the activated signal emitters broadcast a signal transmitted wirelessly, this signal is received by one or more signal receivers of one or more video modules whose signal receivers are located adjacent to the activated signal emitters, the video modules receiving the signal transmit the reception information to the group controller, the group controller, based on the location of the signal emitters and the signal receivers in the video modules, information on activated signal emitters and information on signal receivers that have received the signal, determines the location of these modules relative to each other and stores this information in memory, next, the group controller repeats this procedure for the other video modules that make up the group, until the data on the relative position of the video modules is sufficient to form a complete map of the arrangement of the video modules in the group.

EFFECT: technical result consists in improvement of data processing speed.

18 cl, 6 dwg

Description

The device relates to the field of technology of control circuits of indicator devices, in particular to special addressing devices for individual matrix elements using multiple processors, each processor controlling several separate matrix elements.

State of the art

The prior art device and method for automatically determining the location of a module in a display (KR 105695638, G09G 3/32, G09F 9/33, 11/28/2012). This method is characterized in that the LED display comprises a central screen controller and LED modules with integrated controllers. At the first stage of determining the position of the module, the built-in controllers of the module request information from the adjacent module and store information about it. At the second stage, information of the neighboring module is transmitted to the central screen controller. At the third stage, the central controller determines the location of each module using information about neighboring modules obtained from the built-in controllers of the LED modules. Disadvantages: the need to transfer information from module to module increases the complexity of the device and reduces reliability.

The prior art device and method for the automatic configuration of the LED screen (US 20100026614 Al, G09G 3/32, 04/11/2007). LED modules are combined in a two-dimensional matrix, and the screen controller is connected to one of the ports of the LED modules. Each LED module operates between listening mode and transmission mode. Each LED module contains at least two data ports, each port having a predetermined configuration and orientation. Automatic positioning of LED modules is carried out by the screen controller using listening and transmission modes via LED modules, as well as the spatial orientation of the ports. Disadvantages: wired connections are used; a large number of wired connections reduces the reliability of the screen; The high cost of the screen due to the large number of connectors.

An extensible display device is known from the prior art (US 6,593,902 B1, G09G3 / 2088, 02/02/1997). The expandable display is a set of square modules, on 4 sides of which there are 4 data transmission ports and 4 electric power transmission ports. Data ports can be in the form of connectors or in the form of infrared data ports. The position of the LED modules is determined by iteratively dividing the screen into 4 parts for each module, starting with the module connected to the central controller. Disadvantages: since modern screens, due to high resolution, require data transmission at a speed of hundreds of megabits per second with a delay of no more than a few milliseconds, the proposed method due to the relay signal through a large number of LED modules is complicated and unreliable; a large number of interconnects leads to an increase in the cost of the screen and a decrease in reliability, so the number of modules in such a screen will be limited by the necessary level of reliability; relaying a signal through infrared ports at a speed of several hundred megabits per second with a delay of several milliseconds - a task that has high complexity and cost of implementation; large screens consume tens of kilowatts of electricity and the transfer of such power through LED modules is difficult, connecting at several points will require a single source of electricity, which in reality is difficult.

From the existing level of technology it is known the device of interconnected display tiles (US 20150194123 A1, G02B 27/1066, 04/20/2012). The screen consists of rectangular display modules (tiles), on each side of which there is one data port. Only 4 ports in each LED module. The position of the LED module is determined by the spatial arrangement of the ports. Disadvantages: wired connections are used; a large number of connecting contacts reduces the reliability of the screen.

Disadvantages of Existing Solutions

Existing systems of modular video screens have wired data transfer between modules, therefore, methods for determining the position of video modules are reduced either to the spatial arrangement of the connectors or to the serial connection of the modules through which the signal passes. In this case, the automatic position determination is carried out by calculating the sequence of arrangement of the modules. There are also methods for manually adjusting the location of video modules or groups of modules when the operator, when setting up the screen, manually determines the positions of the groups of video modules inside the screen.

Now, in many areas of technology, wired systems are being replaced with wireless ones, and modular video screens are no exception. To date, there are no digital screens on the market with completely wireless data transmission to video modules, therefore there are no methods for automatically determining positions in these screens. With direct data transfer from the central controller to video modules without relaying, direct determination of the location of the modules is complicated. Manual tuning requires a lot of time because of the large number of individual modules, so in such screens you need an effective automatic method for determining the position of video modules. When replacing multiple video modules on the screen, automatic positioning of replaced modules is also required.

The tasks to which this invention is directed are:

automatic positioning of video modules within a group of video modules; automatic positioning of video modules inside a video screen containing several groups of video modules; automatic positioning of video modules relative to each other.

The tasks are solved as follows.

Brief Description of the Drawings

In FIG. 1, 2, an embodiment of video modules with an automatic position determination device is shown. The video module is a printed circuit board (5) with LEDs (2) soldered in front, optical signal emitters (1) in the form of LEDs with the right angle of radiation and optical signal receivers (3) in the form of photodiodes with the right angle of reception of optical radiation are located on the sides of the board .

In FIG. 3, 4, 5, several variants of the arrangement of signal emitters and signal receivers on video modules in a group are shown.

In FIG. 6 shows a method of forming a group of composite video modules. The lines of the video modules have group controllers (9), which contain emitters (6) and signal receivers (7). The controllers of group (9) with emitters (6) and receivers (7) of the signal transform the groups of modules into composite video modules. The position of the video modules (8) is determined first inside the line relative to each other, after which the position of the lines relative to each other is determined thanks to the group controllers (9) containing the emitters (6) and signal receivers (7).

Drawing list

1. Video module - a module in the form of a printed circuit board with LEDs, front view.

2. Video module - a module in the form of a printed circuit board with LEDs, rear view.

3. A group of video modules containing one signal emitter and two signal receivers.

4. A group of video modules containing two signal emitters and two signal receivers.

5. A group of video modules lined up containing one signal emitter and one signal receiver.

6. A group of video modules, consisting of linear groups of video modules.

List of elements depicted in the drawings

1. An optical signal emitter in the form of an LED.

2. LED video surface.

3. An optical signal receiver in the form of a photodiode.

4. Chip driver LED video surface.

5. The printed circuit board of the module.

6. Signal emitter.

7. The receiver of the signal.

8. The video module.

9. The group controller.

Device

A group of video modules contains a group controller and several video modules (8). Each video module (8) contains a video surface located in front. On the sides of the video modules are one or more signal emitters (6) and one or more signal receivers (7). The signal emitters (6) can be located on two sides of the rectangular video module (8) adjacent to each other, and the signal receivers (7) are located on two opposite sides (Fig. 4). The signal emitter (6) can be located in the corner of the rectangular video module (8), the signal receivers (7) are located in the corners of the video module (8), not opposite to the signal emitter (6) (Fig. 3). The signal emitter (6) can be located on one side of the video module (8), and the signal receiver (7) is located on the opposite side of the video module (8) (Fig. 5). The signal emitters (6) and signal receivers (7) are arranged in such a way that the signal emitters (6) of the group video modules are located next to the signal receivers (7) adjacent to the video modules. The number and arrangement of signal emitters (6) and signal receivers (7) can be arbitrary.

Various types of signal receivers (7) and signal emitters (6) can be used in the construction of the video module (8): LED (1) is used as a signal emitter to transmit a signal through optical radiation, a photodiode (3) is used as a signal receiver; to transmit a signal through a magnetic field, an inductor is used as a signal emitter (6), a Hall sensor is used as a signal receiver (7); to transmit a signal through optical radiation, a light source is used as a signal emitter (6), a photo detector is used as a signal receiver (7); to transmit a signal through an alternating magnetic field, conductors located next to each other are used as a signal emitter (6) and a signal receiver (7) so that the magnetic field of the conductor, which is used as a signal emitter (6), is excited by alternating current, passing through it, covered another conductor, which is used as a signal receiver (7); to transmit a signal by means of coherent optical radiation, a laser is used as a signal emitter (6) and a photodiode as a signal receiver (7); to transmit a signal through an alternating magnetic field, an inductor is used as a signal emitter (6), an inductor is also used as a signal receiver, while the magnetic field excited in the signal emitter coil (6) passes through the signal receiver coil (7) ; Microwave antennas are used as signal emitter (6) and signal receiver (7) to transmit a signal through microwave studies.

The video module (8) of the group may itself be a group of video modules with its own controller of the group (8), in which the positions of the video modules (8) are determined as described below. In this case, the signal emitters (6) and signal receivers (7) can be located in the group controller, which may not have its own video surface.

The device is manufactured as follows:

An implementation option for video modules (8) in the form of printed circuit boards (5) with front-mounted LEDs (2) and LED drivers (4) located at the rear is implemented as follows: video modules (8) are manufactured using standard industrial electronics assembly methods. Segment controllers are also electronic circuit boards that are manufactured using industry standard electronics assembly techniques. Electronics are housed in plastic or metal cases, including power supplies. Enclosures are manufactured using industry standard methods.

LEDs, laser LEDs, photodiodes are manufactured using existing industrial methods. These semiconductor elements are either soldered onto boards or installed in sealed enclosures with external leads in the form of wires. For optical transmission, an LED (1) is used as a signal emitter (6), and a photodiode (3) is used as a signal receiver (7). For optical transmission using coherent optical radiation, a laser LED is used as a signal emitter (6), and a photodiode as a signal receiver (7).

To transmit data using a magnetic field, an inductor is used as a signal emitter (6), and a Hall sensor is used as a signal receiver (7). The inductor is a frame with a ferromagnetic core, on which the wire is wound. The Hall sensor is manufactured using industry standard methods and is connected to an electronic signal amplifier.

To transmit the signal through an alternating electromagnetic field, conductors located next to each other are used as signal emitters (6) and signal receivers (7). Conductors can be PCB tracks. Alternatively, conventional inductors or inductors based on PCB tracks can be used instead of conductors. Printed circuit boards are manufactured using existing industrial methods.

To transmit a signal through microwave studies, microwave antennas are used as signal emitter (6) and signal receiver (7), which can be made in the form of tracks of printed circuit boards or in the form of conductors mounted on printed circuit boards.

The operation of the device is as follows.

The group controller, when functioning, uses a computer program containing an algorithm for determining the location of the LED modules relative to each other. This algorithm works as follows: to determine the position of video modules (8) within a group, a method is used in which the group controller sends one or more video modules (8) a command to activate one or more signal emitters (6). Activated signal emitters (6) transmit a signal transmitted wirelessly. The signal can be transmitted through optical radiation, a constant magnetic field, an alternating magnetic field, coherent optical radiation, microwave study. This signal is received by one or more signal receivers (7) of one or more video modules (8) of the group, signal receivers (7) which are located next to the activated signal emitters (6). The video modules (8) that receive the signal transmit the reception information to the group controller. The group controller, based on information about the location of the signal emitters (6) and signal receivers (7) in the video modules (8), information on the activated signal emitters (6) and information on the signal receivers (7) that received the signal, determines the location of these video modules ( 8) relative to each other and stores this information in memory. At this stage, the position of the video modules (8) relative to each other is determined. For example, if the video emitters in the video modules (8) are located above and to the right, and the signal receivers are located below and to the left, if the upper signal emitter is activated for the video module A (8), and module B receives the signal through the signal receiver (7) located below, this means that video module B (8) is located on top of video module A (8). The group controller repeats this procedure for determining the relative location of the video modules (8) for other video modules (8) that are part of the group, until the data on the relative positions of the video modules (8) is sufficient to form a complete map of the location of the video modules (8) in the group. This card is stored in the controller’s memory and is used by the group controller to address fragments of the image when broadcasting a video stream. For example, if it is known that video module A (8) is located above video module B (8), and video module B (8) is located above video module C (8), the controller determines based on these data that video modules (8) are located from top to bottom A, B, C.

Data exchange between video modules (8) and the group controller can be carried out through a wireless connection or through a wired connection. To identify the video modules (8), a unique identifier is used, assigned to each video module (8). An identifier can be assigned at the time of manufacturing the video modules (8) or at the time of operation of the video module (8).

When the signal emitter (6) is operating, the signal can be modulated, in this case, when the signal receiver (7) is in operation, the signal is demodulated. This reduces the effect of interference on the transmitted signal. The operation of signal emitters (6) and receivers (7) is carried out as follows: to transmit a signal through optical radiation using an LED and a photodiode, the LED emits a light flux, and the photodiode when receiving a light flux changes its inverse resistance, and the current passing through the photodiode also changes. The current is amplified and converted into a digital signal. A laser diode and a photodiode or an incandescent lamp and a photoresistor work in a similar way. Optical signal transmission can use any range of optical radiation, from infrared to ultraviolet. To transmit a signal through a magnetic field using closely spaced parallel conductors, current pulses are passed through the conductor of the signal emitter, which form a magnetic field surrounding the signal receiver conductor. In response to field changes, a current appears in the receiver conductor, which provides a potential difference at the ends of the conductor. This potential difference is amplified by an amplifier and converted to digital form. In a similar way, a device with 2 inductors without a core or with cores works. When using a magnetic field sensor, a Hall sensor is installed near the inductor, when a current is passed through the inductor, a magnetic field appears in it, which passes through the Hall sensor, while the sensor changes its resistance and, accordingly, the current flowing through it changes, this change in current is amplified and digitized. To transmit a signal through microwave radiation, a microwave generator is used as a signal emitter, which emits a microwave signal using a microwave antenna, a microwave receiver picks up a microwave signal using a microwave antenna, detects the signal, amplifies it and digitizes it.

Claims (18)

1. The method for determining the positions of video modules within a group is characterized in that the group of video modules contains a group controller and several video modules, each video module contains a video surface located in front, one or more signal emitters and one or more signal receivers, signal emitters and receivers on the sides of the video modules the signal are arranged so that the emitters of the signal of the video modules are located next to the signal receivers of the neighboring video modules with respect to them, to determine by position of the video modules within the group, the group controller sends a command to one or more video modules to activate one or more signal emitters, activated signal emitters transmit a signal transmitted wirelessly, this signal is received by one or more signal receivers of one or more video modules, signal receivers of which are located next to activated signal emitters, video modules that receive the signal transmit reception information to the group controller, the group controller, based on the information about the location of the signal emitters and signal receivers in the video modules, information about the activated signal emitters and information about the signal receivers that received the signal, determines the location of these modules relative to each other and stores this information in memory, then the group controller repeats this procedure for other video modules included in the composition of the group, until the data on the mutual arrangement of the video modules is sufficient to form a complete map of the location of the video modules in the group, this map is stored in memory NTroller and is used by the group controller to address fragments of the image when broadcasting a video stream. 2. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal emitters are located on two sides of the rectangular video module adjacent to each other, and the signal receivers are located on two opposite sides. 3. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal emitter is located in the corner of the rectangular video module, and the signal receivers are located in the corners of the video module, not opposite to the signal emitter. 4. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal emitter is located on one side of the video module, and the signal receiver is located on the opposite side of the video module. 5. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal is transmitted by optical radiation, an LED is used as a signal emitter, and a photodiode is used as a signal receiver. 6. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal is transmitted by a magnetic field, an inductor is used as a signal emitter, and a Hall sensor is used as a signal receiver. 7. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal is transmitted by optical radiation, a light source is used as a signal emitter, and a photo detector is used as a signal receiver. 8. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal is transmitted by means of an alternating magnetic field, conductors located next to each other such that the magnetic field of the conductor used as the signal emitter, excited by alternating current passing through it, covers another conductor, which is used as a signal receiver. 9. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal is transmitted by coherent optical radiation, a laser is used as a signal emitter, and a photodiode is used as a signal receiver. 10. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal is transmitted by means of an alternating magnetic field, an inductor is used as a signal emitter, an inductor is also used as a signal receiver, while the magnetic field excited in the signal emitter coil through the coil of the signal receiver. 11. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the signal is transmitted by microwave study, microwave antennas are used as a signal emitter and a signal receiver. 12. The method for determining the positions of video modules within a group according to claim 1 is characterized in that when the signal emitter is operating, the signal is modulated, and when the signal receiver is in operation, the signal is demodulated, which reduces the effect of interference on the transmitted signal. 13. The method for determining the positions of video modules within a group according to claim 1 is characterized in that data is exchanged between the video modules and the group controller through a wireless connection. 14. The method for determining the positions of video modules within a group according to claim 1 is characterized in that data is exchanged between the video modules and the group controller through a wired connection. 15. The method for determining the positions of video modules within a group according to claim 1 is characterized in that a unique identifier assigned to each video module is used to identify the video modules. 16. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the video module of the group is a group of video modules with its own group controller, in which the positions of the video modules are determined in the same manner as in paragraph 1. 17. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the video module of the group is a group of video modules with its own group controller, signal emitters and signal receivers are located in the group controller, which may not have its own video surface. 18. The method for determining the positions of video modules within a group according to claim 1 is characterized in that the group controller, when operating, uses a computer program containing an algorithm for determining the location of the LED modules relative to each other.

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