A compatible control system for LED display

Abstract

A compatible control system for an LED display includes a drive circuit, a display device electrically connected to the drive circuit, a main control board, and a 5-core jumper cable. The drive circuits include 6-core and 5-core drive circuits. The 5-core jumper cable electrically connects the drive interface of the drive circuit to the main control interface of a control module. The control module then identifies the type of drive circuit based on a control method and selects a corresponding drive code from a storage module to control the drive circuit to operate the display device. This allows the main control board to control both 6-core and 5-core drive circuits.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner LED display, in particular to a compatible control system of LED display. Background Art

[0002] EXC2618 (1628) is a dedicated LED driver circuit with a keyboard scan interface. It integrates an MCU digital interface, digital latch, LED high-voltage driver, keyboard scan and other circuits. It adopts SOP28 package and has a 6-core output interface. Existing on-hook units often use EXC2618 (1628) as an LED driver. However, as the display content of on-hook units gradually simplifies, the demand for display driver content decreases, such as cooling, heating, sleep, air guide bar high, medium and low, timing and operation icons, etc., which makes the pin functions of commonly used 2618 driver chips and 2668 driver chips of the same category redundant. Therefore, it is necessary to use a driver chip with fewer pin functions to avoid wasting resources.

[0003] The AIP650 is also a dedicated LED driver control circuit with a keyboard scanning circuit interface. It integrates an MCU input and output control digital interface, data latches, LED driver, keyboard scanning, brightness adjustment, and other circuits. It comes in an SOP16 package and has a 5-core output interface. Replacing the commonly used EXC2618 with the AIP650 can resolve the aforementioned issues. However, the core wires of the AIP650's output interface differ from those of the EXC2618. Furthermore, the AIP650's main control chip differs from the EXC2618's. This results in a backlog of existing EXC2618 inventory when the AIP650 is used instead of the EXC2618. Furthermore, reusing the EXC2618 requires the production or purchase of a separate main control chip, reducing production efficiency and increasing production costs. Therefore, it is necessary to design an LED display control system compatible with these driver chips. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the object of the present invention is to provide a compatible control system for LED display, which is compatible with a 6-core drive circuit and a 5-core drive circuit.

[0005] To achieve the above-mentioned object, the present invention provides a compatible control system for an LED display, comprising a drive circuit, a display device electrically connected to the drive circuit, and a main control board; further comprising a 5-core jumper wire; the drive circuit is pre-set with a drive interface for electrical connection of the 5-core jumper wire; the types of drive circuits include 6-core drive circuits and 5-core drive circuits, wherein the drive interface of the 6-core drive circuit has 6 cores, and the drive interface of the 5-core drive circuit has 5 cores, and the core sequence of the drive interface of the 5-core drive circuit is different from the core sequence of the drive interface of the 6-core drive circuit; the main control board comprises a control module and a storage module, wherein the storage module pre-stores a 5-core drive code and a 6-core drive code; the control module is pre-set with a main control interface for electrical connection of the 5-core jumper wire, wherein the core sequence of the main control interface is the same as the core sequence of the drive interface of the 6-core drive circuit; the control module is used to identify the type of drive circuit according to a control method, and then the control module selects a corresponding drive code to control the drive circuit to operate the display device;

[0006] The control method includes the following three steps:

[0007] Step S1, using the 5-core jumper to electrically connect the main control interface and the drive interface, and then power on the main control board;

[0008] Step S2, the control module reads a 5-core jumper wire;

[0009] In step S3, the control module determines whether the 5-core jumper is read successfully. If it fails, the 5-core drive code is used to operate the display light board; if it succeeds, the 6-core drive code is used to operate the display light board.

[0010] Furthermore, the 6-core driving circuit adopts a dedicated LED driving circuit of model EXC2618.

[0011] Furthermore, the 5-core driving circuit adopts a dedicated LED driving circuit of model AIP650.

[0012] Furthermore, the 6-core driving code adopts a code that matches the LED driving dedicated circuit of the EXC2618 model.

[0013] Furthermore, the 5-core driving code adopts a code that matches the AIP650 model LED driving dedicated circuit.

[0014] Furthermore, in step S2, the control module obtains the line sequence to be tested when reading the 5-core jumper wire.

[0015] Further, in step S3, if the line sequence to be tested obtained in step S2 is the same as the line core sequence of the main control interface, the reading is successful; if they are not the same, the reading fails.

[0016] Furthermore, the main control interface and the driving interface of the 6-core driving circuit are both 6-core sockets, wherein the 6-core sockets can be connected to a 6-core jumper wire or a 5-core jumper wire.

[0017] The beneficial effects of the present invention are as follows: by using a 5-core jumper wire to electrically connect the driving interface of the driving circuit with the main control interface of the control module, the control module then identifies the type of the driving circuit according to the control method, and then instructs the control module to select the corresponding driving code in the storage module to control the driving circuit to operate the display device, so that the main control board can be compatible with controlling the 6-core driving circuit and the 5-core driving circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of a compatible control system.

[0019] Figure 2 This is a schematic diagram of a 6-core driver circuit.

[0020] Figure 3 This is a schematic diagram of a 5-core driver circuit.

[0021] Figure 4 is a schematic diagram of a display device.

[0022] Figure 5 Schematic diagram of the control method. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, the present invention is described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided solely to provide a more thorough and comprehensive understanding of the present disclosure.

[0024] Reference Figures 1 to 4 In this embodiment, a compatible control system for an LED display includes a 5-core jumper cable, a drive circuit, a display device electrically connected to the drive circuit, and a main control board. The drive circuits include 6-core and 5-core drive circuits. The 6-core drive circuit uses the EXC2618 LED driver circuit, while the 5-core drive circuit uses the AIP650 LED driver circuit. Each type of drive circuit has a pre-set drive interface for electrical connection to the 5-core jumper cable. The 6-core drive circuit has 6 cores, while the 5-core drive circuit has 5 cores.

[0025] In this embodiment, the main control board includes a control module and a storage module. The storage module pre-stores 5-core and 6-core driver codes. The 6-core driver code matches the EXC2618 LED driver circuit, while the 5-core driver code matches the AIP650 LED driver circuit. The control module also includes a pre-set main control interface for electrical connection via a 5-core jumper cable. The main control interface has six cores. The control module identifies the type of driver circuit based on the control method and selects the corresponding driver code from the storage module to control the driver circuit and operate the display device.

[0026] In this embodiment, the main control interface and the driving interface of the 6-core driving circuit are both 6-core sockets, wherein the 6-core sockets can be connected to a 6-core jumper wire or a 5-core jumper wire.

[0027] In this embodiment, the six cores of the drive interface of the 6-core drive circuit are VCC, RMT, GND, STB, CLK, and DA, respectively. Furthermore, the line sequence of the six cores of the master control interface is consistent with the line sequence of the six cores of the drive interface of the 6-core drive circuit. The five cores of the drive interface of the 5-core drive circuit are VCC, RMT, GND, DA, and CLK, respectively. The line sequence of the cores of the drive interface of the 5-core drive circuit is different from that of the 6-core drive circuit.

[0028] Reference Figure 5 In this embodiment, the control method includes the following three steps:

[0029] Step S1: Use a 5-core jumper cable to electrically connect the main control interface and the drive interface, and then power on the main control board.

[0030] Step S2: The control module reads the 5-core jumper wire, and obtains the line sequence to be tested when the control module reads the 5-core jumper wire.

[0031] In step S3, the control module determines whether the 5-core jumper cable is successfully read. Specifically, if the line sequence to be tested is different from the line sequence of the main control interface, the reading fails, and then the 5-core driver code is used to operate the display light board. If the line sequence to be tested is the same as the line sequence of the main control interface, the reading is successful, and then the 6-core driver code is used to operate the display light board.

[0032] In this embodiment, the main control board can use a single chip microcomputer commonly used in LED drive dedicated circuits corresponding to the model EXC2618. Specifically, the main control board of this embodiment uses a chip model Renesas R7F0C908B2.

[0033] In this embodiment, a 5-core jumper is used to electrically connect the driving interface of the driving circuit with the main control interface of the control module. Then, the control module identifies the driving circuit and controls the display device through a control method, so that the main control board can be compatible with controlling the 6-core driving circuit and the 5-core driving circuit, eliminating the need to separately produce or purchase two main control chips to respectively control the 6-core driving circuit and the 5-core driving circuit, thereby improving production efficiency.

[0034] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any person skilled in the art who, without departing from the scope of the technical solution of the present invention, utilizes the technical content disclosed above to make more possible changes and modifications to the technical solution of the present invention, or modifications are all equivalent embodiments of the present invention. Therefore, any equivalent and equivalent changes made in accordance with the ideas of the present invention without departing from the content of the technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A compatible control system for an LED display, comprising a drive circuit, a display device electrically connected to the drive circuit, and a main control board, characterized in that: It also includes a 5-core jumper wire; the driving circuit is preset with a driving interface for electrical connection of the 5-core jumper wire; the types of driving circuits include 6-core driving circuits and 5-core driving circuits, wherein the number of wire cores of the driving interface of the 6-core driving circuit is 6, and the number of wire cores of the driving interface of the 5-core driving circuit is 5, and the wire core sequence of the driving interface of the 5-core driving circuit is different from the wire core sequence of the driving interface of the 6-core driving circuit; the main control board includes a control module and a storage module, wherein the storage module is pre-stored with a 5-core driving code and a 6-core driving code; the control module is preset with a main control interface for electrical connection of the 5-core jumper wire, wherein the wire core sequence of the main control interface is the same as the wire core sequence of the driving interface of the 6-core driving circuit; the control module is used to identify the type of driving circuit according to the control method, and then, the control module selects the corresponding driving code to control the driving circuit to operate the display device; The control method includes the following three steps: Step S1, using the 5-core jumper to electrically connect the main control interface and the drive interface, and then power on the main control board; Step S2, the control module reads the 5-core jumper to obtain the line sequence to be tested; In step S3, the control module determines whether the line sequence to be tested is the same as the line core sequence of the main control interface: if the same, the reading is successful, and the display device is operated using the 6-core drive code; if not, the reading fails, and the display device is operated using the 5-core drive code.

2. The LED display compatible control system according to claim 1, characterized in that: The 6-core drive circuit adopts a dedicated LED drive circuit of model EXC2618.

3. The LED display compatible control system according to claim 1, characterized in that: The 5-core drive circuit adopts a dedicated LED drive circuit of model AIP650.

4. The LED display compatible control system according to claim 2, characterized in that: The 6-core driver code adopts a code that matches the LED driver dedicated circuit of the EXC2618 model.

5. The LED display compatible control system according to claim 3, characterized in that: The 5-core drive code adopts a code that matches the dedicated LED drive circuit of the AIP650 model.

6. The LED display compatible control system according to claim 1, characterized in that: The main control interface and the driving interface of the 6-core driving circuit are both 6-core sockets, wherein the 6-core sockets can be connected to a 6-core jumper wire or a 5-core jumper wire.

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