LED display system and electronic equipment

Abstract

The utility model provides an LED display system and an electronic device, wherein the LED display system comprises: a first data sending device, a second data sending device and at least one LED display module, the LED display module comprises a plurality of LED display units, the LED display unit comprises a first data receiving port, a second data receiving port, a first digital signal processor, a second digital signal processor, a display unit and an address memory. Through the implementation of the utility model, the data sending device is electrically connected to the LED display unit, and different types of data are transmitted through the data sending device, so that each LED display unit can perform address burning or display control according to different data types, can adapt to LED display modules of various physical distribution types, improve the flexibility of burning, and at the same time can improve the consistency of the two operations of address burning and display control, and ensure the efficiency of display control.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to an LED display system and electronic equipment. Background Art

[0002] In LED display, it is usually necessary to perform address burning first, and the address burning in the related art often adopts the light signal burning or radio frequency signal burning method. This type of address burning method requires manufacturing a one-to-one matching burning mold according to the physical distribution information of each unit of the LED display system (such as the physical distribution information such as the system unit size and distribution spacing), and then accurately aligning the burning mold with each unit of the system to perform address burning. Since the light signal or radio frequency signal burning method has a certain requirement to align the physical information of the system unit and needs to manufacture a suitable mold, the burning method will have the disadvantage of a more cumbersome processing process in actual use, resulting in low LED display control efficiency. Utility Model Content

[0003] The utility model provides an LED display system and an electronic device, aiming to solve the problem in the related art that the processing process of a light signal or a radio frequency signal burning method is relatively complicated, resulting in low LED display control efficiency.

[0004] In order to solve the above technical problems, the first aspect of the utility model provides an LED display system, including: a first data sending device, a second data sending device and at least one LED display module, the LED display module includes multiple LED display units, the LED display unit includes a first data receiving port, a second data receiving port, a first digital signal processor, a second digital signal processor, a display unit and an address memory; the first data receiving port is electrically connected to the first data sending device, the second data receiving port is electrically connected to the second data sending device, the first digital signal processor is electrically connected to the first data receiving port, the second data receiving port, the second digital signal processor and the address memory respectively, the second digital signal processor is also electrically connected to the address memory, and the display unit is electrically connected to the second digital signal processor.

[0005] Furthermore, the LED display unit also includes a data transmission unit, a third digital signal processor and an address burning unit; the data transmission unit is electrically connected to the first digital signal processor, the second digital signal processor, the third digital signal processor and the address burning unit respectively, the third digital signal processor is also electrically connected to the address burning unit, and the address burning unit is also electrically connected to the address memory.

[0006] Furthermore, the data transmission unit includes a first AND gate, a second AND gate and a third AND gate, the first AND gate is electrically connected to the first digital signal processor and the second digital signal processor respectively, the second AND gate is electrically connected to the first digital signal processor and the third digital signal processor respectively, and the third AND gate is electrically connected to the first digital signal processor and the address burning unit respectively.

[0007] A second aspect of the present invention provides an electronic device, comprising the LED display system as described in the first aspect of the present invention.

[0008] From the above description, it can be seen that the utility model electrically connects the data sending device to the LED display unit, and transmits different types of data through the data sending device, so that each LED display unit can perform address burning or display control according to different data types. Compared with the method of burning using light signals or radio frequency signals, the present application scheme can adapt to LED display modules of various physical distribution types, improves the flexibility of burning, and at the same time can improve the continuity of the two operations of address burning and display control, thereby ensuring the efficiency of display control. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the first LED display system of the embodiment of the utility model;

[0010] Figure 2 It is a structural schematic diagram of the first LED display unit of the embodiment of the utility model;

[0011] Figure 3 It is a structural schematic diagram of a second LED display unit of an embodiment of the utility model;

[0012] Figure 4 It is a structural schematic diagram of a third LED display unit of an embodiment of the utility model;

[0013] Figure 5 It is a structural schematic diagram of an address burning unit of an embodiment of the utility model;

[0014] Figure 6 is a structural schematic diagram of a second LED display system according to an embodiment of the present application;

[0015] Figure 7 It is a structural schematic diagram of the third LED display system of the embodiment of the present application. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in the various embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] In the related art, the processing process of burning by light signals or radio frequency signals is relatively complicated, resulting in low LED display control efficiency. Therefore, an embodiment of the utility model provides an LED display system.

[0018] like Figure 1 , Figure 2 The following are the structural diagrams of the first LED display system and the first LED display unit provided by the embodiment of the utility model, see Figure 1 and Figure 2 The LED display system includes: a first data sending device, a second data sending device and at least one LED display module, the LED display module includes multiple LED display units, the LED display unit includes a first data receiving port PAD1, a second data receiving port PAD2, a first digital signal processor 100, a second digital signal processor 200, a display unit 300 and an address memory 400; the first data receiving port PAD1 is electrically connected to the first data sending device, the second data receiving port PAD2 is electrically connected to the second data sending device, the first digital signal processor 100 is electrically connected to the first data receiving port PAD1, the second data receiving port PAD2, the second digital signal processor 200 and the address memory 400 respectively, the second digital signal processor 200 is also electrically connected to the address memory 400, and the display unit 300 is electrically connected to the second digital signal processor 200.

[0019] Specifically, in the present embodiment, the LED display unit includes four ports, namely a VDD port connected to a power supply, a ground port GND, and two data receiving ports PAD1 and PAD2 with the same functions, wherein the number and distribution positions of the data receiving ports can be adjusted according to actual needs; the data sending device can transmit address-type target data and display-type target data to the corresponding data receiving port, wherein the target data includes two parts: data type information and data packet, and the data type information such as 0XAAAA and 0XDDDD is used to indicate the type of data packet in the target data, 0XAAAA (i.e., Code A) indicates that the data packet is address data, and 0XDDDD (i.e., Code D) indicates that the data packet is display data. When address burning is required, the first data sending device and the second data sending device transmit address type target data to the first data receiving port PAD1 and the second data receiving port PAD2 respectively, and then the first digital signal processor 100 will store the address data in the received address type target data to the address memory 400, such as ROM. After the address data is stored, that is, the address burning is completed, when the display type target data transmitted by any data sending device is received, the second digital signal processor 200 will control the display unit 300 according to the address data stored in the address memory 400 and the display data in the received display type target data. Therefore, this embodiment electrically connects the data sending device to the LED display unit, so that the address burning can be flexibly applied to LED display modules of various physical distribution types. At the same time, through this electrical contact method, the consistency between address burning and display control can be improved, and the efficiency of LED display control can be improved.

[0020] like Figure 3 FIG. 1 is a schematic diagram of the structure of a second LED display unit provided in an embodiment of the present application. Figure 2 and Figure 3 The LED display unit also includes a data transmission unit 500, a third digital signal processor 600 and an address burning unit 700; the data transmission unit 500 is electrically connected to the first digital signal processor 100, the second digital signal processor 200, the third digital signal processor 600 and the address burning unit 700 respectively, the third digital signal processor 600 is also electrically connected to the address burning unit 700, and the address burning unit 700 is also electrically connected to the address memory 400.

[0021] For further information, see Figure 2 and Figure 3 The display unit 300 includes an LED driving circuit 310 and an LED light group 320. The LED driving circuit 310 is electrically connected to the second digital signal processor 200 and the LED light group 320 respectively.

[0022] Specifically, in this embodiment, in order to ensure the accuracy of address burning, the received address data can be further verified. After the two data sending devices have transmitted the address type target data, they can also transmit verification type target data to determine the accuracy of the address data. Among them, the first digital signal processor 100 is responsible for splitting the data type information and data packets in the address type target data or verification type target data or display type target data received by the two data receiving ports, and then combining the split data type information and the split data packets, and then transmitting the combined data packets to the data transmission unit 500 according to the combined data type information. The data transmission unit 500 transmits the combined data packets to the second digital signal processor 200, the address burning unit 700, and the third digital signal processor 600 respectively. The data transmission unit 500 in this embodiment is used to transmit the address type data to the third digital signal processor 600, and the third digital signal processor 600 is used to temporarily store the data packets. The data transmission unit 500 transmits the verification data to the address burning unit 700, and the address burning unit 700 can compare and identify the temporarily stored address data with the verification data. When the address data matches the verification data, the address data is stored in the address memory 400 and a write protection operation is performed. Thereafter, when the data transmission unit 500 transmits the display target data to the second digital signal processor 200, the second digital signal processor 200 can read the corresponding display data field (display data packet) from each data packet in the display target data according to the address data in the address memory 400, so as to control the display of the display unit 300 according to the display data field. Among them, the display unit 300 mainly includes an LED driving circuit 310 and an LED lamp group 320. The second digital signal processor 200 can output a corresponding driving signal to the LED lamp group 320 by controlling the LED driving circuit 310 to control the display of the LED lamp group 320. The LED driving circuit 310 can be implemented by a driving chip, such as a high-voltage linear constant current driving chip for LEDs using Mingwei SM2082EGS. The LED lamp group 320 can be composed of three LED lamps of different colors. In addition, it should be noted that the digital signal processor in this embodiment can be various general-purpose DSPs, digital ICs, etc. For example, the first digital signal processor can be an MCU chip of the stm32 series, an FPGA chip of the Cortex-M&Xilinx&Altera series, and the second digital signal processor 200 can use Xinpengcheng TMS320F28015PZA.

[0023] like Figure 4 FIG. 1 is a schematic diagram of the structure of the third LED display unit provided in the embodiment of the present application. Figure 3The LED display unit also includes a multiplexer 800, a first end S1 of the multiplexer 800 is electrically connected to the first data receiving port PAD1, a second end S2 is electrically connected to the second data receiving port PAD2, a third end D and a fourth end C are both electrically connected to the first digital signal processor 100, and a fifth end ENB is used to be electrically connected to an external fixed level signal generator.

[0024] Specifically, in the present embodiment, in order to avoid using a single channel to receive data transmitted by the first data sending device and the second data sending device, where the two sending devices simultaneously occupy a single channel, which is not conducive to ensuring the integrity of the data, the present embodiment further provides a multiplexer 800 at the input end of the first digital signal processor 100 for controlling the priority order of the two data paths. Specifically, the input end with a higher priority level can be selected by controlling the fourth end C of the multiplexer 800, for example, the priority of the first data receiving port PAD1 is selected to be higher than that of the second data receiving port PAD2.

[0025] For further information, see Figures 2 to 4 The data transmission unit 500 includes a first AND gate 510, a second AND gate 520 and a third AND gate 530. The first AND gate 510 is electrically connected to the first digital signal processor 100 and the second digital signal processor 200 respectively, the second AND gate 520 is electrically connected to the first digital signal processor 100 and the third digital signal processor 600 respectively, and the third AND gate 530 is electrically connected to the first digital signal processor 100 and the address burning unit 700 respectively.

[0026] Specifically, the first input end of the first AND gate 510 is electrically connected to the first output end of the first digital signal processor 100, the first input end of the second AND gate 520 is electrically connected to the second output end of the first digital signal processor 100, the first input end of the third AND gate 530 is electrically connected to the third output end of the first digital signal processor 100, and the second input ends of the first AND gate 510, the second AND gate 520 and the third AND gate 530 are electrically connected to the fourth output end of the first digital signal processor 100. Among them, the first output end, the second output end and the third output end of the first digital signal processor 100 are all used to output high-level signals, and the fourth output end of the first digital signal processor 100 is used to output data packets.

[0027] In this embodiment, the first digital signal processor 100 is specifically used for: when it is determined that the combined data type information corresponds to the display type, transmitting the first high level signal and the combined second data packet to the first AND gate 510; wherein the first high level signal is used to instruct the first AND gate 510 to transmit the combined second data packet to the second digital signal processor 200; when it is determined that the combined data type information corresponds to the address type, transmitting the second high level signal and the combined first data packet to the second AND gate 520; wherein the second high level signal is used to instruct the second AND gate 520 to transmit the combined first data packet to the third digital signal processor 600; when it is determined that the combined data type information corresponds to the check type, transmitting the third high level signal and the combined third data packet to the third AND gate 530; wherein the third high level signal is used to instruct the third AND gate 530 to transmit the combined third data packet to the address burning unit 700. For example, when the first digital signal processor 100 determines that the combined data type information corresponds to the address type, a high level signal is transmitted to the second AND gate 520, and the first input terminal (CodeA terminal) of the second AND gate 520 receives a high level. At this time, the combined first data packet transmitted by the first digital signal processor 100 can be transmitted to the third digital signal processor 600. When the first digital signal processor 100 determines that the combined data type information corresponds to the display type, a high level signal is transmitted to the first AND gate 510, and the first input terminal (CodeD terminal) of the first AND gate 510 receives a high level. At this time, the combined second data packet transmitted by the first digital signal processor 100 can be transmitted to the second digital signal processor 200. When the first digital signal processor 100 determines that the combined data type information corresponds to the check type, a high level signal is transmitted to the third AND gate 530, and the first input terminal (CodeB terminal) of the third AND gate 530 receives a high level. At this time, the combined third data packet transmitted by the first digital signal processor 100 can be transmitted to the address burning unit 700. Data transmission through the AND gate can play a role in data buffering.

[0028] like Figure 5 FIG. 1 is a schematic diagram of the structure of an address burning unit provided in an embodiment of the present application. Figure 5 The address burning unit 700 includes a fourth digital signal processor 710, a switch tube 720, a fuse 730 and a resistor 740. The switch tube 720 is electrically connected to the fourth digital signal processor 710, one end of the fuse 730 and one end of the resistor 740 respectively, and the common connection end of the fuse 730 and the switch tube 720 is electrically connected to the address memory 400, the other end of the fuse 730 is electrically connected to the power supply, and the other end of the resistor 740 is grounded.

[0029] Specifically, after determining that the address data transmitted by the third digital signal processor 600 is verified to be correct, the fourth digital signal processor 710 in this embodiment controls the on and off of the switch tube and the fuse to write the transmitted address information into the address memory 400, such as ROM. In addition, the fourth digital signal processor in this embodiment can be a Samsung KLMCG8GE2A manufactured by Hilo Electronics.

[0030] like Figure 6 , Figure 7 The following are schematic diagrams of the structure of the second LED display system and the third LED display system provided in the embodiment of the present application, respectively. Figure 6 and Figure 7 The LED display system also includes a switch unit, which is electrically connected to the LED display module and the first data sending device, or the switch unit is electrically connected to the LED display module and the second data sending device.

[0031] Specifically, in this embodiment, the connection between the data sending device and the bus of the LED display module can be disconnected by a switch unit. For example, when the first data sending device sends column address data 1, 2...n to the first data receiving port PAD1 of the system unit, and the second data sending device sends row address data 1, 2...m to the second data receiving port PAD2 of the system unit, the system unit combines the two data, and the combined data is the data of the corresponding (m, n) dot matrix coordinates. The system unit transmits the address data of the combined (m, n) dot matrix coordinates to the third digital signal processor 600 of the system unit for temporary storage; after the system unit completes the address temporary storage, similarly, the two data sending devices simultaneously send the row address and column address verification data of m rows and n columns, and after comparing the verification data with the temporarily stored address data, when the comparison results are consistent, the address burning unit 700 performs address burning and write protection. Among them, in the process of address burning, the address burning of a single row and column point and the entire dot matrix can be carried out through the data sending device according to the dot matrix position information of the system unit, so as to realize the address burning of the LED display system efficiently and flexibly. When the address burning is completed, one of the data sending devices can be removed through the switch unit, and only the other data sending device, such as the first data sending device or the second data sending device, can transmit the display type target data. Therefore, when using Figure 6 When the LED display system shown in the figure is used, the address can be efficiently burned through two data sending devices. After the address is burned, the connection between the second data sending device and the system unit port can be disconnected through the switch unit, and only the first data sending device can transmit the display data. Figure 7In the LED display system shown, the address can be efficiently burned through two data sending devices. After the address burning is completed, the connection between the first data sending device and the system unit port can be disconnected through the switch unit, and only the second data sending device can transmit the display data.

[0032] Also, see Figure 1 , Figure 6 and Figure 7 , multiple LED display units of the LED display module are arranged in a matrix; wherein the first data receiving ports of the LED display units in the nth column are all connected to the nth data line of the first data sending device, and the second data receiving ports of the LED display units in the mth row are all connected to the mth data line of the second data sending device, m≥1, n≥1, m and n can be the same or different. Each LED display unit in the LED display module in this embodiment can be arranged in a matrix, and each LED display unit of the LED display module is at the intersection of the data transmission lines of the first data sending device and the second data sending device. This distribution method can effectively ensure the uniformity of the light emission of the LED display unit.

[0033] The LED display system provided by the embodiment of the utility model electrically connects the data sending device with the LED display unit, and transmits different types of data through the data sending device, so that each LED display unit can perform address burning or display control according to different data types. Compared with the method of using light signals or radio frequency signals for burning, the application scheme can adapt to LED display modules of various physically distributed types, improves the flexibility of burning, and at the same time can improve the consistency of the two operations of address burning and display control, thereby ensuring the efficiency of display control.

[0034] The embodiment of the utility model further provides an electronic device, which includes the above-mentioned LED display system, wherein the electronic device may include but is not limited to a lighting product, a power supply product, and a display device.

[0035] It should be noted that the various embodiments in the present invention are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0036] It should also be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined in the present invention may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in the present invention, but will conform to the widest range consistent with the principles and novel features disclosed in the present invention.

Claims

1. An LED display system, characterized in that: include: A first data sending device, a second data sending device and at least one LED display module, wherein the LED display module includes a plurality of LED display units, and the LED display unit includes a first data receiving port, a second data receiving port, a first digital signal processor, a second digital signal processor, a display unit and an address memory; The first data receiving port is electrically connected to the first data sending device, the second data receiving port is electrically connected to the second data sending device, the first digital signal processor is electrically connected to the first data receiving port, the second data receiving port, the second digital signal processor and the address memory respectively, the second digital signal processor is also electrically connected to the address memory, and the display unit is electrically connected to the second digital signal processor.

2. The LED display system according to claim 1, characterized in that: The LED display unit also includes a data transmission unit, a third digital signal processor and an address burning unit; The data transmission unit is electrically connected to the first digital signal processor, the second digital signal processor, the third digital signal processor and the address burning unit respectively, the third digital signal processor is also electrically connected to the address burning unit, and the address burning unit is also electrically connected to the address memory.

3. The LED display system according to claim 1, characterized in that: The display unit includes an LED driving circuit and an LED light group, and the LED driving circuit is electrically connected to the second digital signal processor and the LED light group respectively.

4. The LED display system according to claim 2, characterized in that: The LED display unit also includes a multiplexer, a first end of the multiplexer is electrically connected to the first data receiving port, a second end is electrically connected to the second data receiving port, a third end and a fourth end are both electrically connected to the first digital signal processor, and a fifth end is used to be electrically connected to an external fixed level signal generator.

5. The LED display system according to claim 2, characterized in that: The data transmission unit includes a first AND gate, a second AND gate and a third AND gate, the first AND gate is electrically connected to the first digital signal processor and the second digital signal processor respectively, the second AND gate is electrically connected to the first digital signal processor and the third digital signal processor respectively, and the third AND gate is electrically connected to the first digital signal processor and the address burning unit respectively.

6. The LED display system according to claim 2, characterized in that: The address burning unit includes a fourth digital signal processor, a switch tube, a fuse and a resistor. The switch tube is electrically connected to the fourth digital signal processor, one end of the fuse, and one end of the resistor respectively, and the common connection end of the fuse and the switch tube is electrically connected to the address memory, the other end of the fuse is electrically connected to a power supply, and the other end of the resistor is grounded.

7. The LED display system according to claim 5, characterized in that: The first input terminal of the first AND gate is electrically connected to the first output terminal of the first digital signal processor, the first input terminal of the second AND gate is electrically connected to the second output terminal of the first digital signal processor, the first input terminal of the third AND gate is electrically connected to the third output terminal of the first digital signal processor, and the second input terminals of the first AND gate, the second AND gate and the third AND gate are all electrically connected to the fourth output terminal of the first digital signal processor.

8. The LED display system according to claim 1, characterized in that: It also includes a switch unit, which is electrically connected to the LED display module and the first data sending device respectively, or the switch unit is electrically connected to the LED display module and the second data sending device respectively.

9. The LED display system according to any one of claims 1 to 8, characterized in that: The multiple LED display units of the LED display module are arranged in a matrix; wherein the first data receiving ports of the LED display units in the nth column are all connected to the nth data line of the first data sending device, and the second data receiving ports of the LED display units in the mth row are all connected to the mth data line of the second data sending device, m≥1, n≥1.

10. An electronic device, characterized in that: Comprising the LED display system as described in any one of claims 1 to 9.

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