WO2019009758A1

WO2019009758A1 - Method of determining the position of video modules within a group

Info

Publication number: WO2019009758A1
Application number: PCT/RU2018/000033
Authority: WO
Inventors: Алексей Викторович ШТОРМ
Original assignee: Алексей Викторович ШТОРМ
Priority date: 2017-07-03
Filing date: 2018-01-25
Publication date: 2019-01-10
Also published as: RU2648563C1

Abstract

The invention relates to network communication technologies. The claimed method of determining positions of video modules within a group is characterized in that for determining the positions of video modules within a group, a group controller transmits to one or more video modules a command to activate one or more signal emitters; the activated signal emitters broadcast a signal, which is transmitted wirelessly; said signal is received by one or more signal receivers of one or more video modules, the signal receivers of which are situated adjacent to activated signal emitters; the video modules receiving the signal transmit information about receipt to the group controller. The group controller, on the basis of information about the location of the signal emitters and signal receivers in the video modules, information about activated signal emitters and information about signal receivers that have received the signals, determines the location of said modules relative to one another and enters said information into a memory, after which the group controller repeats said procedure for other video modules included in the group until there is sufficient data about the mutual location of the video modules to form a complete map of the location of video modules in the group.

Description

The method of determining the position of the video modules within the group

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

From the current level of technology known device and method

automatic determination of the location of the module in the display (KR 105695638, G09G 3/32, G09F 9/33, 11/28/2012). This method is characterized in that the LED display contains a central screen controller and

LED modules with integrated controllers. At the first stage of determining the position of a module, the module’s embedded controllers request information from an adjacent module and store information about it. At the second stage, the information of the neighboring module is transmitted to the central screen controller. In the third stage, the central controller determines the location of each module using information about neighboring modules,

derived from the built-in controller of the LED modules. Disadvantages: The need to transfer information from the module to the module increases the complexity of the device and reduces reliability.

From the current level of technology known device and method for automatic configuration of the LED screen (US 20100026614 A1, G09G 3/32, 11.04.2007). The LED modules are combined into a two-dimensional array, and the screen controller is connected to one of the ports of the LED modules. Each LED module works between mode

listening and transfer mode. Each LED module contains at least two data ports, each port having a predefined configuration and orientation. The automatic determination of the positions of the LED modules is performed by the screen controller using the listening and transmitting modes through the 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.

From the current level of technology is known an expandable display device (US 6593902 B1, G09G3 / 2088, 02.06.1997). Expandable display is a set of square modules, on 4 sides of which there are 4 data transmission ports and 4 power transmission ports. Data ports can be made as connectors or as infrared ports. data transmission. 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 signal retransmission through a large number of LED modules is complicated and unreliable;

A large number of interconnections leads to higher screen costs and reduced reliability, so the number of modules in such a screen will be limited by the required level of reliability; Relaying a signal through IR ports at a speed of several hundred megabits per second with a delay of several milliseconds is a task that has high complexity and cost of implementation; Large screens consume dozens of kilowatt elektroergii and the transfer of such power through the LED modules is difficult,

connection at several points will require a single source of electricity, which is difficult in real conditions.

From the current level of technology is known device interconnected display tiles (US 20150194123 A1, G02B27 / 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. Determining the position of the LED module is due to the spatial location of the ports. Disadvantages:

Wired connections are used; A large number of connecting contacts reduces the reliability of the screen.

Existing systems of modular video screens have wired data transmission between modules, therefore, the methods for determining the position of video modules are reduced either to the spatial arrangement of connectors or to

serial connection of modules through which the signal passes. In this case, the automatic determination of positions is carried out by calculating the sequence of the location of the modules. There are also methods for manually adjusting the location of the video modules or groups of modules, when the operator manually determines the positions of the video module groups inside the screen when setting up the screen.

Now in many areas of technology is replacing wired systems for wireless, and modular video screens are no exception. Today, there are no digital screens on the market with fully wireless data transmission to video modules, so there are no methods for automatically determining positions in these screens. With direct data transfer from the central controller video modules without retransmission direct determination of the location of the modules is complicated. Manual configuration requires a lot of time because of the large number of individual modules, so these screens need an effective automatic method for determining the position of the video modules. When replacing several video screen modules, automatic determination of the positions of the replaced modules is also required.

The tasks to be solved by this invention are: automatic determination of the position of the video modules within the group

video modules; automatic detection of video module positions within a video screen containing several groups of video modules; automatic detection of video module positions relative to each other.

The tasks are solved as follows

Brief Description of the Drawings

In the figures (1, 2), an embodiment of a video module with an automatic position detection device is shown. The video module is a printed circuit board (5) with LEDs (2) soldered in front, the optical emitters of the signal (1) are arranged in the form of LEDs with right-angle radiation and optical signal receivers (3) in the form of

photodiodes with the right angle of reception of optical radiation.

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

The figure (6) shows the method of forming a group of composite

video modules Video module lines have group controllers (9) that contain emitters (6) and signal receivers (7). Group controllers (9) with emitters (6) and signal receivers (7) transform groups of modules into composite video modules. The positions of the video modules (8) are first determined within 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).

List of figures

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. The group of video modules, consisting of linear groups of video modules.

The list of elements depicted in the figures

1. Optical signal emitter in the form of LED.

2. LED video surface.

3. Optical receiver signal in the form of a photodiode.

4. Chip-LED driver of the video surface.

5. Printed circuit board module.

6. The emitter signal.

7. Receiver signal.

8. Video module.

9. Group controller.

Device

The video module group 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

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) may be located in the corner of a rectangular the 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 located in such a way that the signal emitters (6) of the video modules of the group are located next to the signal receivers (7), adjacent video modules relative to them.

The number and location of the signal emitters (6) and signal receivers (7) can be arbitrary.

In the design of the video module (8), various types of signal receivers (7) and signal emitters (6) can be used: for transmitting the signal by means of optical radiation as a signal emitter

LED (1) is used, photodiode (3) is used as a signal receiver; for transmitting a signal by means of a magnetic field, an inductor is used as a signal emitter (6), a Hall sensor is used as a signal receiver (7); for transmitting the signal by means of optical radiation, a light source is used as a signal emitter (6), a photodetector is used as a signal receiver (7); to transmit the signal by means of an alternating magnetic field, as the signal emitter (6) and signal receiver (7), conductors are used adjacent to each other in such a way that

the magnetic field of the conductor, which is used as a signal emitter (6), excited by the alternating current passing through it, covered another conductor, which is used as a receiver of the signal (7); to transmit the signal through 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

alternating magnetic field as an emitter of a signal (6) an inductor is used, as an receiver of a signal (7) an inductor is also used, while a magnetic field excited in a coil of a signal emitter (6) passes through a coil of a signal receiver (7); to transmit the signal through a microwave study as

the signal emitter (6) and the signal receiver (7) use microwave antennas.

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

The implementation of the video modules (8) in the form of printed circuit boards (5) with LEDs (2) soldered in the front and LED drivers (4) placed in the rear is implemented as follows: Video modules (8) are manufactured using standard industrial electronics assembly methods. Segment controllers are also electronic cards that

Manufactured using industry standard electronic assembly methods. Electronics are placed in plastic or metal cases, including power supplies. Shells are manufactured using industry standard techniques.

LEDs, laser LEDs, photodiodes are manufactured using existing industrial methods. These semiconductor elements or soldered to the board, 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 is used as a signal receiver (7).

For data transmission 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 by standard industrial methods and connected to an electronic signal amplifier.

To transmit a signal by means of an alternating electromagnetic field, conductors located next to each other are used as signal emitters (6) and signal receivers (7). Guides can

represent the tracks of printed circuit boards. Also, conventional inductors or inductors based on printed circuit boards can be used instead of conductors. Printed circuit boards are manufactured using existing industrial methods. To transmit a signal through a microwave study, microwave antennas are used as a signal emitter (6) and a signal receiver (7), which can be made as PCB tracks or as conductors mounted on PCBs.

The operation of the device is as follows:

When operating, the group controller 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 positions of the video modules (8) within the group

A method is used in which the group controller transmits to one or several video modules (8) a command to activate one or more signal emitters (6). The activated signal emitters (6) transmit a signal transmitted wirelessly. The signal can be transmitted through optical radiation, a constant magnetic field,

variable magnetic field, coherent optical radiation,

microwave study. This signal is received by one or several signal receivers (7) of one or several video modules (8) of the group, the signal receivers (7) of which are located next to the activated signal emitters (6). The video module (8), received the signal, transmit information about the reception of the controller group. Group controller, based on information about the location of the signal emitters (6) and signal receivers

(7) in video modules (8), information on activated signal emitters (6) and information on signal receivers (7) that received the signal, determines the location of these video modules (8) relative to each other and stores this information. At this stage, the position of the video modules is determined.

(8) relative to each other. For example, if in the video modules (8) the signal emitters 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 at the video module A (8), and the 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 position of the video modules (8) for other video modules (8) that are part of the group, until the relative position data

video modules (8) will not be enough to form a complete map of the location of 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 during video streaming. For example, if it is known that the video module A (8) is above the video module B (8), and the video module B (8) is above the video module C (8), the controller determines that the video module (8) is located top down A, B, C.

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

When the signal emitter (6) is operated, the signal can be modulated, in this case, when the signal receiver (7) is operated, the signal is demodulated. This reduces the effect of interference on the transmitted signal.

The operation of the emitters (6) and receivers (7) of the signal is as follows: To transmit a signal through optical radiation, when using a LED and a photodiode, the LED emits a luminous flux, and the photodiode changes its reverse when receiving a luminous flux

resistance changes and the current passing through the photodiode. Current

amplified and converted to digital signal. Similarly, the laser diode and photodiode or incandescent lamp and photoresistor work. Optical signal transmission can use any range of optical radiation, from infrared to ultraviolet. To transmit a signal through a magnetic field, when using closely spaced parallel conductors, current pulses are passed through the signal emitter conductor, which form a magnetic field covering the signal receiver conductor. In response to changes in the field in the receiver's conductor, a current appears that ensures the appearance of a potential difference at the ends of the conductor. This potential difference is amplified by an amplifier and converted to digital form.

Similarly, the device works with 2 inductors without a core or with cores. When using a magnetic field sensor, a Hall sensor is installed next to the inductor;

by passing a current through an inductor, a magnetic field appears in it that passes through a Hall sensor, the sensor changes its resistance and the current flowing through it changes accordingly, this change in current is amplified and converted into digital form. To transmit the signal through microwave radiation, a microwave generator is used as a signal emitter, which emits a microwave signal with Using a microwave antenna, the microwave receiver picks up the microwave signal with a microwave antenna, detects the signal, amplifies it, and digitizes it.

Claims

Formula

1. The method of determining the positions of video modules within a group is characterized by the fact that a group of video modules contains a group controller and several video modules, each video module contains a video surface,

one or more signal emitters and one or more signal receivers, signal emitters and signal receivers are located in front of the video modules in such a way that the video modules emitters are located next to the video modules adjacent to them, to determine the positions of the video modules inside group, the group controller sends to one or more video modules a command to activate one or more signal emitters,

activated signal emitters broadcast a signal transmitted wirelessly, this signal is received by one or more

a signal receiver of one or more video modules whose signal receivers are located next to activated signal emitters; video modules that have received a signal transmit information about the reception to the group controller, group controller, based on the location information

signal emitters and signal receivers in video modules, information on activated signal emitters and information on 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 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 the memory of the controller and used It is used by the group controller to address fragments of the image when broadcasting a video stream.

2. The method of determining the positions of the video modules within the group under item 1

characterized by the fact that the signal emitters are located on two sides of a rectangular video module adjacent to each other, and the signal receivers are located on two opposite sides.

3. The method of determining the positions of the video modules within the group under item 1

characterized by the fact that the signal emitter is located in the corner

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 of determining the positions of the video modules within the group under item 1

characterized by the fact 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 of determining the positions of the video modules within the group under item 1

characterized by the fact that the signal is transmitted through optical radiation, an LED is used as a signal emitter, a photodiode is used as a signal receiver.

6. The method of determining the positions of the video modules within the group under item 1

characterized by the fact that the signal is transmitted through a magnetic field, an inductor is used as a signal emitter, a Hall sensor is used as a signal receiver.

7. The method of determining the positions of the video modules within the group under item 1

characterized by the fact that the signal is transmitted through optical radiation, a light source is used as a signal emitter, and a photodetector is used as a signal receiver.

8. The method of determining the positions of the video modules within the group under item 1

characterized by the fact that the signal is transmitted through an alternating magnetic field, as the signal emitter and signal receiver are used conductors located next to each other so that the magnetic field of the conductor, which is used as a signal emitter, excited by an alternating current passing through it, covers another conductor that is used as a signal receiver.

9. The method of determining the positions of the video modules within the group under item 1

characterized by the fact that the signal is transmitted via coherent optical radiation, a laser is used as a signal emitter, and a photodiode is used as a signal receiver.

10. The method of determining the position of the video modules within the group of claim 1 is characterized by the fact that the signal is transmitted through an alternating magnetic field, an inductor is used as a signal emitter, and an inductor is also used as a signal receiver, while the magnetic field excited in the signal emitter coil passes through the coil of the receiver signal.

AND

11. The method of determining the positions of the video modules within the group of clause 1 is characterized by the fact that the signal is transmitted through a microwave study, using microwave antennas as a signal emitter and receiver.

12. The method of determining the positions of the video modules within the group of claim 1 is characterized by the fact that when the signal emitter is operated, the signal is modulated, and when the signal receiver is operated, the signal is demodulated, which reduces the influence of interference on the transmitted signal.

13. The method of determining the positions of the video modules within the group of clause 1 is characterized in that the exchange of data between the video modules and

the group controller is conducted via a wireless connection.

14. The method of determining the positions of the video modules within the group under item 1 is characterized by the fact that the exchange of data between the video modules and

the group controller is conducted through a wired connection.

15. The method for determining the positions of the video modules within the group of clause 1 is characterized in that to identify the video modules using a unique identifier assigned to each video module.

16. The method of determining the positions of the video modules within the group of clause 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 defined in the same way as in paragraph 1.

17. The method for determining the positions of video modules within a group of 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 of determining the positions of the video modules within the group according to claim 1 is characterized in that the group controller, when functioning, uses a computer program containing an algorithm for determining the location of the LED modules relative to each other.