All-wireless LED display control system and device

Abstract

The utility model discloses an all-wireless LED display control system and device, relates to the technical field of LED display control, and discloses an all-wireless LED display control system, which comprises an LED main board, the LED main board comprises an integrated control circuit, the integrated control circuit is connected with an alternating current voltage, and the integrated control circuit is used for generating a wireless power signal based on the alternating current voltage; the first wireless unit is connected with the integrated control circuit, and the first wireless unit is used for receiving the wireless power signal and the wireless data signal; and the LED lamp panel comprises a second wireless unit, the second wireless unit is in communication connection with the first wireless unit, and the second wireless unit is used for receiving the wireless power signal and the wireless data signal so as to perform display control on the LED based on the wireless power signal and the wireless data signal. According to the invention, the reliability of LED display control is improved.

Description

Technical Field

[0001] The present application relates to the field of LED display control technology, and in particular to a fully wireless LED display control system and device. Background Art

[0002] With the development of LED (light emitting diode) display technology and various LED display screens, users have also put forward higher requirements for LED display control.

[0003] The traditional LED display control method is to directly connect to the light board through a HUB (adapter board), and then control it by connecting it with a board-to-board connector, spring clips or wires. This LED display control method has great defects, and there may be problems such as failures caused by poor connection of board-to-board connectors, spring clips or wires or loose interfaces. That is, this LED display control method will cause failures due to poor connection of board-to-board connectors, spring clips or wires or loose interfaces, which will result in low reliability of LED display control.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Utility Model Content

[0005] The main purpose of this application is to provide a fully wireless LED display control system and device, aiming to solve the technical problem of low reliability of LED display control.

[0006] To achieve the above objectives, the present application provides a fully wireless LED display control system, the fully wireless LED display control system comprising:

[0007] LED main board, the LED main board comprising:

[0008] An integrated control circuit, the integrated control circuit being connected to an alternating current voltage, and the integrated control circuit being used to generate a wireless power signal based on the alternating current voltage;

[0009] A first wireless unit, the first wireless unit is connected to the integrated control circuit, and the first wireless unit is used to send the wireless power signal and the wireless data signal;

[0010] LED light board, the LED light board comprising:

[0011] A second wireless unit is communicatively connected to the first wireless unit, and is used to receive the wireless power signal and the wireless data signal to perform display control on the LED based on the wireless power signal and the wireless data signal.

[0012] In one embodiment, the first wireless unit includes a wireless power transmission circuit, the first wireless unit includes a wireless power transmission circuit, and the wireless power transmission circuit includes:

[0013] a first resonant circuit, wherein an input end of the first resonant circuit is connected to the integrated control circuit;

[0014] A transmitting coil is connected to an output end of the first resonant circuit.

[0015] In one embodiment, the second wireless unit includes a wireless power receiving circuit, and the wireless power receiving circuit includes:

[0016] Receiving coil;

[0017] a second resonant circuit, wherein an input end of the second resonant circuit is connected to the receiving coil;

[0018] A rectifier, wherein the input end of the rectifier is connected to the output end of the second resonant circuit, and the output end of the rectifier is connected to the LED on the LED lamp board.

[0019] In one embodiment, the second wireless unit further includes:

[0020] A second wireless data transmitter, the second wireless data transmitter is further used to send LED wireless data signals;

[0021] The first wireless unit also includes:

[0022] A first wireless data transmitter, the first wireless data transmitter is wirelessly connected to the second wireless data transmitter, the first wireless data transmitter is also connected to the integrated control circuit, and the first wireless data transmitter is also used to receive the LED wireless data signal.

[0023] In one embodiment, the transmission mode of the first wireless data transmitter and the transmission mode of the second wireless data transmitter include millimeter wave data transmission.

[0024] In one embodiment, the integrated control circuit comprises:

[0025] A power control circuit, the power control circuit is connected to the AC voltage, and the power control circuit is connected to the first wireless unit;

[0026] a conversion board connected to the power control circuit and the first wireless unit;

[0027] A receiving card is connected to the conversion board.

[0028] In one embodiment, the power control circuit includes an input processing circuit, a controller circuit and an auxiliary power circuit, and the input processing circuit includes:

[0029] A filter and rectifier circuit, wherein an input end of the filter and rectifier circuit is connected to the AC voltage;

[0030] A PFC circuit, wherein the input end of the PFC circuit is connected to the output end of the filtering and rectifying circuit, the control end of the PFC circuit is connected to the controller circuit, and the output end of the PFC circuit is connected to the auxiliary power supply circuit and the first wireless unit.

[0031] In one embodiment, the controller circuit comprises:

[0032] A first output control terminal, wherein the first output control terminal is connected to a control terminal of the PFC circuit;

[0033] a second output control terminal, the second output control terminal being connected to the first wireless unit;

[0034] a third output control terminal, the third output control terminal being connected to the auxiliary power supply circuit;

[0035] A power supply end is connected to the auxiliary power supply circuit.

[0036] In one embodiment, the auxiliary power supply circuit includes:

[0037] A transformer, wherein an input end of the transformer is connected to the third output control end, the output end of the PFC circuit and the power supply end, and an output end of the transformer is connected to the conversion board.

[0038] In addition, to achieve the above-mentioned purpose, the present application also provides a fully wireless LED display control device, and the fully wireless LED display control device includes the above-mentioned fully wireless LED display control system.

[0039] The embodiment of the present application provides a fully wireless LED display control system, including an LED mainboard, wherein the LED mainboard includes: an integrated control circuit, wherein the integrated control circuit is connected to an AC voltage, and wherein the integrated control circuit is used to generate a wireless power signal based on the AC voltage; a first wireless unit, wherein the first wireless unit is connected to the integrated control circuit, and wherein the first wireless unit is used to send the wireless power signal and the wireless data signal; an LED light board, wherein the LED light board includes: a second wireless unit, wherein the second wireless unit is communicatively connected to the first wireless unit, and wherein the second wireless unit is used to receive the wireless power signal and the wireless data signal, so as to perform display control on the LED based on the wireless power signal and the wireless data signal; the second wireless unit is communicatively connected to the first wireless unit, and wherein the second wireless unit is used to receive the wireless power signal and the wireless data signal, so as to perform display control on the LED based on the wireless power signal and the wireless data signal, thereby avoiding the occurrence of faults caused by poor connection of board-to-board connectors, springs or wires, or loose interfaces. This fully wireless LED display control system not only integrates the circuit through the integrated control circuit in the LED mainboard, thereby improving the circuit integration, but also transmits wireless power signals and wireless data signals to the LED display through the first wireless unit and the second wireless unit, thereby improving the reliability of the LED display control. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the framework of the first embodiment of the fully wireless LED display control system of the present application;

[0041] Figure 2 It is a schematic diagram of the framework of an embodiment of an existing fully wireless LED display control system;

[0042] Figure 3 It is a schematic diagram of the framework of another embodiment of the existing fully wireless LED display control system;

[0043] Figure 4 It is a physical schematic diagram of an existing fully wireless LED display control system;

[0044] Figure 5 This is a schematic diagram of the framework of the second embodiment of the fully wireless LED display control system of the present application;

[0045] Figure 6 This is a schematic diagram of the framework of the third embodiment of the fully wireless LED display control system of the present application;

[0046] Figure 7 This is a schematic diagram of the framework of the fourth embodiment of the fully wireless LED display control system of the present application;

[0047] Figure 8This is a physical schematic diagram of the fully wireless LED display control system of this application;

[0048] Fig. 9 This is another physical schematic diagram of the fully wireless LED display control system of this application;

[0049] Fig.10 This is a schematic diagram of wireless power transmission in the fully wireless LED display control system of this application;

[0050] Fig.11 This is a schematic diagram of wireless data transmission in the fully wireless LED display control system of this application;

[0051] Fig.12 This is a schematic diagram of a scenario application of the fully wireless LED display control system of this application;

[0052] Fig.13 This is another application scenario diagram of the fully wireless LED display control system of this application;

[0053] Fig.14 This is a schematic diagram of the overall framework of the fully wireless LED display control system of this application;

[0054] Fig.15 A circuit diagram of a fully wireless LED display control system of the present application.

[0055] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0056] Description of Figure Numbers:

[0057] AC, alternating current voltage; 100, LED main board; 110, integrated control circuit; 120, first wireless unit; 200, LED light board; 210, second wireless unit; 220, LED; X1, first resonant circuit;

[0058] X2, second resonant circuit; L1, transmitting coil; L2, receiving coil; Z1, rectifier; 1A, EMI filtering; 1B, rectification and filtering; 1C, PFC circuit; 20, controller circuit; 30, auxiliary power circuit; 40, adapter board; 50, receiving card; 60, wireless power transmission unit; 70, first wireless data transmission unit; 80, wireless power receiving circuit; 90, second wireless data transmission unit; R1-R11, first resistor-eleventh resistor; D1-D5, first diode-fifth diode; C1-C8, first capacitor-eighth capacitor; CX, magnetic core; W1-W3, first coil-third coil; Q1-Q2, first switch tube-second switch tube; G1, input inductor. DETAILED DESCRIPTION

[0059] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0060] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0061] In traditional LED cabinets, the power supply, adapter board, and receiving card are designed separately. Figure 2 , Figure 2 This is a schematic diagram of the framework of an embodiment of an existing fully wireless LED display control system. In the figure, the power adapter, the adapter board (HUB), the receiving card and the light board are designed separately and each device is connected by a board-to-board connector or a spring connection or a wire connection. Figure 3 , Figure 3 It is a schematic diagram of the framework of another embodiment of the existing fully wireless LED display control system. Figure 2 Based on the example, a schematic diagram of controlling and connecting multiple light boards is given, and each device is connected by a board-to-board connector or a spring connection or a wire connection, which greatly increases the wiring complexity of the multi-light board control, such as Figure 4 As shown, Figure 4 This is a physical schematic diagram of an existing fully wireless LED display control system. All devices in the figure must be connected by wire through connecting terminals. Based on the design of the above fully wireless LED display control system, the existing fully wireless LED display control system has the problems of large space occupation, high cost, and low integration. At the same time, the board-to-board connector connection or the spring connection or wire connection will make the system connection unstable, and the difficulty and complexity of later fault maintenance will increase. At the same time, the above connection method will also cause the connection between the various components to be unstable, which is prone to signal transmission problems, reduced stability, and affect the display effect of the LED screen.

[0062] Therefore, based on the above-mentioned shortcomings of the fully wireless LED display control system, a fully wireless LED display control system of the present application is proposed. The main solution of the embodiment of the present application is: the fully wireless LED display control system includes an LED main board, the LED main board includes: an integrated control circuit, the integrated control circuit is connected to an AC voltage, and the integrated control circuit is used to generate a wireless power signal based on the AC voltage; a first wireless unit, the first wireless unit is connected to the integrated control circuit, and the first wireless unit is used to send the wireless power signal and the wireless data signal; an LED light board, the LED light board includes: a second wireless unit, the second wireless unit is connected to the first wireless unit for communication, and the second wireless unit is used to receive the wireless power signal and the wireless data signal, so as to display and control the LED based on the wireless power signal and the wireless data signal. This fully wireless LED display control system not only integrates the circuit through the integrated control circuit in the LED main board, thereby improving the integration of the circuit, but also transmits the wireless power signal and the wireless data signal through the first wireless unit and the second wireless unit to display and control the LED, thereby improving the reliability of the LED display control.

[0063] Based on this, the embodiment of the present application provides a fully wireless LED display control system, referring to Figure 1 , Figure 1 This is a schematic diagram of the framework of the first embodiment of the fully wireless LED display control system of the present application.

[0064] Reference Figure 1 The present application provides a fully wireless LED display control system, the fully wireless LED display control system comprising:

[0065] The LED main board 100 includes:

[0066] An integrated control circuit 110, wherein the integrated control circuit 110 is connected to an alternating current voltage AC, and the integrated control circuit 110 is used to generate a wireless power signal based on the alternating current voltage AC;

[0067] A first wireless unit 120, wherein the first wireless unit 120 is connected to the integrated control circuit 110, and the first wireless unit 120 is used to send the wireless power signal and the wireless data signal;

[0068] LED light board 200, the LED light board 200 comprises:

[0069] The second wireless unit 210 is communicatively connected to the first wireless unit 120, and the second wireless unit 210 is used to receive the wireless power signal and the wireless data signal to perform display control on the LED 220 based on the wireless power signal and the wireless data signal.

[0070] In this embodiment, the fully wireless LED display control system includes an LED main board 100 and an LED light board 200, wherein the two perform wireless data communication and power transmission through the second wireless unit 210 and the first wireless unit 120 in each of them, and then the second wireless unit 210 receives the wireless power signal and the wireless data signal sent by the first wireless unit 120, wherein the wireless data signal can be generated internally or receive data from the outside, which is not limited here, so as to control the LED display based on the wireless power signal and the wireless data signal, thereby improving the reliability of the LED display control. At the same time, the integrated control circuit 110 is designed on the LED main board 100, without the need to separately design independent modules of the power supply, adapter board and receiving card, thereby improving the integration of the fully wireless LED display control system.

[0071] In one embodiment, the connection between the second wireless unit 210 and the first wireless unit 120 adopts a wireless power supply design (such as coil coupling transmission) and wireless data transmission (such as millimeter wave isolation transmission). All wireless connections have the characteristics of stable structure, convenient installation, energy saving and environmental protection, and easy use.

[0072] In one embodiment, on the one hand, the three-in-one design (which can be a power supply, an adapter board and a receiving card or an integration of other boards or circuits) integrates multiple functional components together, improves the integration of the product, makes the overall structure more compact and beautiful, and greatly optimizes the internal cabinet layout of the LED, reduces the construction steps and installation time (correspondingly reduces the number of required components, reduces material costs and labor costs), reduces the weight of the cabinet, and makes it lighter, thinner and more beautiful. On the other hand, the wireless power supply and wireless data transmission design will not have the risk of failure caused by poor wired connection or loose interface, which improves the stability and reliability of the product.

[0073] In this embodiment, a fully wireless LED display control system includes an LED mainboard, wherein the LED mainboard includes: an integrated control circuit, wherein the integrated control circuit is connected to an AC voltage, and wherein the integrated control circuit is used to generate a wireless power signal based on the AC voltage; a first wireless unit, wherein the first wireless unit is connected to the integrated control circuit, and wherein the first wireless unit is used to send the wireless power signal and the wireless data signal; and an LED light board, wherein the LED light board includes: a second wireless unit, wherein the second wireless unit is communicatively connected to the first wireless unit, and wherein the second wireless unit is used to receive the wireless power signal and the wireless data signal, so as to perform display control on the LED based on the wireless power signal and the wireless data signal, wherein the second wireless unit is communicatively connected to the first wireless unit, and wherein the second wireless unit is used to receive the wireless power signal and the wireless data signal, so as to perform display control on the LED based on the wireless power signal and the wireless data signal, thereby avoiding the occurrence of faults caused by poor connection of board-to-board connectors, springs or wires, or loose interfaces. This fully wireless LED display control system not only integrates the circuit through the integrated control circuit in the LED mainboard, thereby improving the circuit integration, but also transmits wireless power signals and wireless data signals to the LED display through the first wireless unit and the second wireless unit, thereby improving the reliability of the LED display control.

[0074] Further, based on the above-mentioned first embodiment of the present application, a second embodiment of the fully wireless LED display control system of the present application is proposed, referring to Fig.10 , Fig.10 This is a schematic diagram of wireless power transmission in the fully wireless LED display control system of the present application. The first wireless unit 120 includes a wireless power transmission circuit, and the wireless power transmission circuit includes:

[0075] A first resonant circuit X1, wherein an input end of the first resonant circuit X1 is connected to the integrated control circuit 110;

[0076] A transmitting coil L1 , wherein the transmitting coil L1 is connected to an output end of the first resonant circuit X1 .

[0077] In this embodiment, the first wireless unit 120 includes a first resonant circuit X1 and a transmitting coil L1, and then transmits electric energy to the second wireless unit 210 through the first resonant circuit X1 and the transmitting coil L1, and the second wireless unit 210 then powers the LED 220 based on the received electric energy, wherein the first resonant circuit X1 may include a resonant circuit composed of RLC series, or other resonant circuits, or a full-bridge or half-bridge circuit, wherein GD is used to control the circuit to start working, and VBUS is used to power the circuit. Wireless transmission between the light board and the power supply is realized, thereby avoiding the problem of poor wiring errors, so as to improve the reliability of the fully wireless LED display control system.

[0078] In one embodiment, the second wireless unit 210 includes a wireless power receiving circuit, and the wireless power receiving circuit includes:

[0079] Receiving coil L2;

[0080] a second resonant circuit X2, wherein an input end of the second resonant circuit X2 is connected to the receiving coil L2;

[0081] The rectifier Z1 has an input end connected to the output end of the second resonant circuit X2 , and an output end of the rectifier Z1 connected to the LED 220 on the LED light board 200 .

[0082] In this embodiment, the second wireless unit 210 includes a receiving coil L2, a second resonant circuit X2 and a rectifier Z1. After the electric energy of the transmitting coil L1 is received by the receiving coil L2, it is processed by the second resonant circuit X2 and the rectifier Z1 to obtain electric energy for powering LED220. The second resonant circuit X2 may include a resonant circuit composed of RLC series, or other resonant circuits, or a full-bridge or half-bridge circuit. The rectifier Z1 is used to rectify the received voltage to ensure the accuracy of the power supply, thereby powering LED220 on the LED light board 200.

[0083] In one embodiment, the core function of the wireless power supply module is to achieve power transmission through coil coupling. In the transmitting part, the bus voltage (VBUS) passes through the resonant circuit, through the GD resonant circuit of the controller, and is converted into AC and transmitted through the coil. In the receiving part, the receiving coil senses the magnetic field and converts it into an induced voltage. After rectification, a DC power supply (VLED) that can be used for load operation is obtained to power the light board. Furthermore, through the wireless power supply design, the construction difficulty is simplified, disassembly and assembly are convenient, and the risk of failure caused by poor wired connection or loose interface is reduced.

[0084] In one embodiment, referring to Figure 5 , Figure 5This is a framework diagram of the second embodiment of the fully wireless LED display control system of the present application. The power supply and adapter board receiving card are designed as a three-in-one. Wireless power is transmitted after AC input. At the same time, a wireless power receiver is designed on the lamp board to receive the power transmitted by the wireless power to power the LED on the lamp board, thereby realizing wireless power transmission without the need for wired transmission, thereby avoiding transmission failures caused by wired transmission and improving the reliability of power supply.

[0085] In one embodiment, referring to Fig.11 , Fig.11 This is a schematic diagram of wireless data transmission in the fully wireless LED display control system of the present application. The second wireless unit 210 also includes:

[0086] A second wireless data transmitter, the second wireless data transmitter is further used to send LED wireless data signals;

[0087] The first wireless unit 120 further includes:

[0088] A first wireless data transmitter, the first wireless data transmitter is wirelessly connected to the second wireless data transmitter, the first wireless data transmitter is also connected to the integrated control circuit, and the first wireless data transmitter is also used to receive the LED wireless data signal.

[0089] In one embodiment, the transmission mode of the first wireless data transmitter and the transmission mode of the second wireless data transmitter include millimeter wave data transmission.

[0090] In this embodiment, the first wireless unit 120 and the second wireless unit 210 include a first wireless data transmitter and a second wireless data transmitter in addition to a wireless power transmission circuit, and wireless data transmission is performed between the two wireless data transmitters, thereby ensuring high efficiency of data transmission and reducing the use of data lines. Fig.11 As shown, the wireless data transmitter can be a millimeter wave transmission instrument as shown in the figure, and high-bandwidth and high-speed data transmission can be achieved through the use of the millimeter wave transmission instrument. It can also be an infrared transmission instrument. Further, the problem of poor wiring errors in the data line can be avoided, so as to improve the reliability of data transmission in the fully wireless LED display control system.

[0091] In one embodiment, the second wireless data transmitter is also used to send LED wireless data signals, and the first wireless data transmitter is also used to receive the LED wireless data signals, so that the LED can be controlled based on the LED wireless data signals, such as clock signals, etc., and communication between the LED and devices such as controllers can be realized, thereby realizing wireless data transmission between the LED main board 100 and the LED light board 200.

[0092] In one embodiment, referring to Figure 6 , Figure 6 This is a schematic diagram of the framework of the third embodiment of the fully wireless LED display control system of the present application. The power supply, adapter board and receiving card are three-in-one designed. Data is transmitted through the wireless data transmission module in the three-in-one. At the same time, a wireless data transmission module is designed on the light board to receive the data transmitted by the wireless data transmission module in the three-in-one to control the LED on the light board, thereby realizing wireless data transmission without the need for wired transmission. Transmission failures caused by wired transmission are avoided, thereby improving the reliability of data transmission. It is worth noting here that data transmission can be bidirectional data transmission, and the transmission direction is not directly limited. Further, referring to Figure 7 , Figure 7 This is a schematic diagram of the framework of the fourth embodiment of the fully wireless LED display control system of this application. The three-in-one design of the power supply, adapter board and receiving card can be realized as follows: Figure 5 and Figure 6 The combined functions of power and data transmission improve the reliability of data transmission and power supply, so as to ensure the reliability of the LED display control system through full wireless.

[0093] In one embodiment, referring to Figure 8 , Figure 8 This is a physical schematic diagram of the fully wireless LED display control system of this application, which illustrates the views of the wireless data transmission module and the wireless power transmission module, and compares the existing Figure 4 , at least reducing the use of connecting terminals and connecting wires. It is worth noting that the three-in-one design can further improve the integration of the full wireless LED display control system. Further, refer to Fig. 9 , Fig. 9 This is another physical schematic diagram of the fully wireless LED display control system of this application. In the figure, power and data transmission is based on wireless, which can greatly reduce the use of wiring harnesses. At the same time, the entire design is simple and there is no need to arrange wiring harnesses, which can reduce the cost of wiring harness use and subsequent maintenance costs.

[0094] In one embodiment, the number of the first resonant circuits in the first wireless unit matches the number of the second resonant circuits in the second wireless unit, and the number of the first wireless data transmitters in the first wireless unit matches the number of the second wireless data transmitters in the second wireless unit, wherein the number of the first resonant circuits matches the number of the first wireless data transmitters.

[0095] In this embodiment, the number of first resonant circuits in the first wireless unit matches the number of second resonant circuits in the second wireless unit, that is, each first resonant circuit uniquely corresponds to a second resonant circuit, and the number of first wireless data transmitters in the first wireless unit matches the number of second wireless data transmitters in the second wireless unit, that is, each first wireless data transmitter uniquely corresponds to a second wireless data transmitter, and, because data transmission and power transmission appear in pairs, the number of first resonant circuits matches the number of first wireless data transmitters, and thus wireless power supply and control of the LED can be achieved through wireless data transmission and wireless power transmission, thereby improving the reliability of LED display control compared to wired control.

[0096] In one embodiment, referring to Fig.12 , Fig.12 This is a schematic diagram of a scenario application of the fully wireless LED display control system of this application. The figure shows a control and power supply schematic diagram of two LED light boards. Each LED light board is provided with a wireless power receiving circuit and a second data transmission unit, and a corresponding wireless power transmitting circuit and a first wireless data transmission unit are provided on the LED main board. Fig.13 , Fig.13 This is another application scenario diagram of the fully wireless LED display control system of this application. In the figure, n pairs of wireless power transmission circuits and first wireless data transmission units appear in pairs, and each pair of wireless power transmission circuits and first wireless data transmission units corresponds to a wireless power receiving circuit and a second data transmission unit, thereby realizing the control of the LED lights on n LED light boards. It is worth noting that data and power transmission may not exist in correspondence, and only need to be controlled to start working when in use, such as connecting the receiving coil, etc., to realize selective data and power transmission, so as to ensure the reliability of the fully wireless LED display control system. At the same time, sharing can also reduce the use cost of wireless transmission devices.

[0097] Further, based on the first embodiment and / or the second embodiment of the present application, a third embodiment of the fully wireless LED display control system of the present application is proposed, wherein the integrated control circuit 110 includes:

[0098] A power control circuit, the power control circuit is connected to the alternating current voltage AC, and the power control circuit is connected to the first wireless unit 120;

[0099] A conversion board 40, wherein the conversion board 40 is connected to the power control circuit and the first wireless unit 120;

[0100] A receiving card 50 , wherein the receiving card 50 is connected to the conversion board 40 .

[0101] In this embodiment, the integrated control circuit 110 includes a power control circuit, a conversion board 40 and a receiving card 50, which are then designed on a board (or may be an integrated design of other chips), making the structure compact and saving space. The power control circuit is then connected to the first wireless unit 120 to achieve wireless power transmission, and the conversion board 40 is connected to the first wireless unit 120 to achieve wireless data transmission. By achieving wireless transmission of data and power, the failure problem during wired transmission is avoided, so as to improve the reliability of the fully wireless LED display control system.

[0102] In one embodiment, referring to Fig.14 , Fig.14 The overall framework diagram of the fully wireless LED display control system of this application is shown in FIG. The AC input passes through the EMI (Electro Magnetic Compatibility) rectifier 1A, the rectifier filter 1B and the PFC (Power Factor Corrector) circuit 1C, and then outputs VBUS to power the first wireless unit 120. At the same time, the PFC circuit 1C is also controlled by the controller circuit 20. The controller circuit 20 also controls the auxiliary power supply circuit to output the voltage VHUB to power the adapter board 40 and the first wireless data transmission unit 70 on the adapter board 40, and can also control the first wireless unit 120 to send power through GD. At the same time, the adapter board 40 also receives data from the receiving card 50, and then transmits data through the first wireless data transmission unit 70. A wireless power receiving circuit 80 is provided on the LED board 200 to receive the power sent by the first wireless unit 120, and a second wireless data transmission unit 90 is provided to receive the data sent by the first wireless data transmission unit 70, thereby completing the wireless data and wireless power transmission. By adopting wireless data transmission, the construction difficulty is simplified, disassembly and assembly are facilitated, and the risk of failure caused by poor wired connection or loose interface is reduced. In particular, millimeter wave wireless data chip transmission can be used to support high-speed and high-frequency data transmission requirements.

[0103] Furthermore, in one embodiment, the power control circuit includes an input processing circuit, a controller circuit and an auxiliary power circuit, and the input processing circuit includes:

[0104] A filter and rectifier circuit, wherein an input end of the filter and rectifier circuit is connected to the AC voltage;

[0105] A PFC circuit 1C, wherein the input end of the PFC circuit 1C is connected to the output end of the filter rectifier circuit, the control end of the PFC circuit 1C is connected to the controller circuit 20, and the output end of the PFC circuit 1C is connected to the auxiliary power supply circuit 30 and the first wireless unit 120.

[0106] In this embodiment, the power control circuit includes an input processing circuit, a controller circuit and an auxiliary power circuit, wherein the filter rectifier circuit includes an EMI rectifier 1A and a rectifier filter 1B connected to the AC input in sequence, the EMI rectifier 1A can be an EMI device, and the rectifier filter 1B can be a combination of a rectifier and a filter. Then the AC voltage is output to the PFC circuit 1C via the EMI rectifier 1A and the rectifier filter 1B, and then connected to the controller circuit 20, the auxiliary power circuit 30 and the first wireless unit 120 through the PFC circuit 1C, so as to realize the control of the controller circuit 20 and power the auxiliary power circuit 30 and the first wireless unit 120.

[0107] In one embodiment, referring to Fig.15 , Fig.15 A circuit diagram of a fully wireless LED display control system of the present application, the PFC circuit 1C includes a first capacitor C1 connected in parallel to the output end of the rectifier filter 1B, the second end of the first capacitor C1 is grounded, the first end of the first capacitor C1 is connected to the first end of the output inductor G1 and the anode of the first diode D1, the first end of the output inductor G1 is connected to the anode of the second diode D2, the drain of the first switch tube Q1 and the second end of the first resistor R1, the gate of the first switch tube Q1 is connected to the controller circuit 20, the source of the first switch tube Q1 is connected to the second end of the second resistor R2 and the second end of the third resistor R3, the second resistor R 2 is connected to the first end of the first resistor R1 and then connected to the controller circuit 20, the cathode of the second diode D2 is connected to the cathode of the first diode D1, the second end of the second capacitor C2, the second end of the fourth resistor R4, the first end of the sixth resistor R6 and the first wireless unit 120 (connected to the first wireless unit 120 via VBUS), the first end of the fourth resistor R4 is connected to the second end of the fifth resistor R5 and the controller circuit 20, the first end of the fifth resistor R5 is connected to the first end of the second capacitor C2 and the first end of the third resistor R3 and then grounded, and the first end of the sixth resistor R6 is connected to the controller circuit 20. The above is only an example of the PFC circuit 1C, and it can also be composed of other circuits, which is not limited here.

[0108] Furthermore, in one embodiment, the controller circuit 20 includes:

[0109] A first output control terminal, wherein the first output control terminal is connected to a control terminal of the PFC circuit 1C;

[0110] A second output control terminal, the second output control terminal is connected to the first wireless unit 120;

[0111] A third output control terminal, the third output control terminal is connected to the auxiliary power supply circuit 30;

[0112] A power supply end is connected to the auxiliary power supply circuit.

[0113] In this embodiment, the controller circuit 20 includes a first output control terminal, namely Fig.15 The port DRV_P connected to the gate of the first switch tube Q1; the second output control terminal, that is, Fig.15 The ports GD1-GD8 in the control circuit realize the control of the first wireless unit 120; the third output control terminal, i.e. Fig.15 Port DRV_F in the power supply terminal, i.e. Fig.15 VCC in.

[0114] In one embodiment, the controller circuit 20 includes a controller, and the controller includes ports DRV_P, ZCD / CS, VS1, DRV_F, CS, VS2, VDD, GD1-GD8, GND, VCC, COMP, etc., wherein the power supply terminal VCC, the first output control terminal DRV_P, the second output control terminal DRV_F, and the third output control terminals GD1-GD8 are used for explanation. The second output control terminal DRV_F is connected to the gate of the second switch tube Q2, the drain of the second switch tube Q2 is connected to the auxiliary power supply circuit 30, CS is connected to the first end of the ninth resistor R9, VS2 is connected to the first end of the eighth resistor R8 and the first end of the tenth resistor R10, the second end of the tenth resistor R10 is connected to the auxiliary power supply circuit 30 and the anode of the third diode D3, the cathode of the third diode D3 is connected to the first end of the seventh capacitor C7, the first end of the sixth capacitor C6, the second end of the sixth resistor R6 and VDD, the source of the second switch tube Q2 is connected to the second end of the ninth resistor R9 and the first end of the eleventh resistor R11 The first end of the fourth capacitor C4 is connected to the second end of the seventh resistor R7, the first end of the third capacitor C3 is connected to the first end of the seventh resistor R7, and the first end of the third capacitor C3 is connected to the first end of the seventh resistor R7, and then grounded, VCC is connected to the first end of the fifth capacitor C5 and the first end of the LDO, the second end of the fifth capacitor C5 is grounded, the ground end of the LDO is grounded, the second end of the LDO is connected to the cathode of the fourth diode D4, and the anode of the fourth diode D4 is connected to VDD.

[0115] In one embodiment, GD1-GD8 are respectively connected to the GD1-GD8 connection of the wireless power transmitting circuit, wherein the ground on one side of the PGND and SGND triple is connected, and the wireless power receiving circuit is respectively connected to VLED1-VLED8, thereby realizing power supply control of 8 LEDs.

[0116] Furthermore, in one embodiment, the auxiliary power circuit 30 includes:

[0117] A transformer, wherein the input end of the transformer is connected to the third output control end, the output end of the PFC circuit 1C and the power supply end, and the output end of the transformer is connected to the conversion board 40.

[0118] In this embodiment, the auxiliary power circuit 30 includes a transformer, which in turn supplies power to the adapter board 40 , wherein the ground terminal of the receiving card is grounded.

[0119] In one embodiment, the transformer includes a clamping circuit (the same as a conventional clamping circuit), a first end of the clamping circuit is connected to the cathode of the second diode D2 and the opposite-name end of the first coil, a second end of the clamping circuit is connected to the drain of the second switch tube Q2 and the same-name end of the first coil, the same-name end of the third coil is connected to the second end of the tenth resistor R10, and the opposite-name end of the third coil is grounded. At the same time, the transformer also includes a magnetic core CX, and a third coil W3, a first end of the third coil W3 is connected to the anode of the fifth diode D5, a cathode of the fifth diode D5 is connected to the first end of the eighth capacitor C8 and the positive input end of the adapter board 40, and the second end of the eighth capacitor C8, the second end of the third coil W3 and the negative input end of the adapter board 40 are connected and then grounded.

[0120] In one embodiment, the mains power is input from AC, passes through EMI filtering and rectification filtering, and first charges C6 through R6. When VDD reaches a certain threshold, the primary controller controls Q2 through DRV_F, and obtains the VHUB voltage through the transformer and D5 and C8 rectification and filtering to power the subsequent conversion board (HUB). At the same time, VDD is powered through D4 and LDO, and then the primary controller controls Q1 through DRV_P, and performs power factor calibration (PFC) and boost / buck on the rectified voltage and current to obtain the bus (VBUS) voltage. In addition, the primary controller controls the first to eighth transmitting modules through GD1, GD2, GD3, GD4, GD5, GD6, GD7, and GD8 to transmit power, and the secondary first to eighth receiving modules receive power respectively, and can power eight lamp boards respectively. Among them, the number of lamp boards can be designed according to actual system requirements and is not limited. The hub performs wireless data transmission with the light board through the wireless data transmission module. There can be 8 wireless data transmission modules on one hub, which can perform wireless data transmission with 8 light boards respectively. Among them, the wireless data transmission module uses millimeter wave isolation transmission.

[0121] The present application also provides a fully wireless LED display control device, including the above-mentioned fully wireless LED display control system.

[0122] The fully wireless LED display control device provided by the present application can solve the technical problem of low reliability of LED display control. Compared with the prior art, the beneficial effects of the fully wireless LED display control device provided by the present application are the same as the beneficial effects of the fully wireless LED display control device circuit provided by the above embodiment, which will not be repeated here.

[0123] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A fully wireless LED display control system, characterized in that: The fully wireless LED display control system includes: LED main board, the LED main board comprising: An integrated control circuit, the integrated control circuit being connected to an alternating current voltage, and the integrated control circuit being used to generate a wireless power signal based on the alternating current voltage; A first wireless unit, the first wireless unit is connected to the integrated control circuit, and the first wireless unit is used to send the wireless power signal and the wireless data signal; LED light board, the LED light board comprising: A second wireless unit is communicatively connected to the first wireless unit, and is used to receive the wireless power signal and the wireless data signal to perform display control on the LED based on the wireless power signal and the wireless data signal.

2. The fully wireless LED display control system according to claim 1, characterized in that: The first wireless unit includes a wireless power transmission circuit, and the wireless power transmission circuit includes: a first resonant circuit, wherein an input end of the first resonant circuit is connected to the integrated control circuit; A transmitting coil is connected to an output end of the first resonant circuit.

3. The fully wireless LED display control system as claimed in claim 2, characterized in that: The second wireless unit includes a wireless power receiving circuit, and the wireless power receiving circuit includes: Receiving coil; a second resonant circuit, wherein an input end of the second resonant circuit is connected to the receiving coil; A rectifier, wherein the input end of the rectifier is connected to the output end of the second resonant circuit, and the output end of the rectifier is connected to the LED on the LED lamp board.

4. The fully wireless LED display control system according to claim 1, characterized in that: The second wireless unit also includes: A second wireless data transmitter, the second wireless data transmitter is further used to send LED wireless data signals; The first wireless unit also includes: A first wireless data transmitter, the first wireless data transmitter is wirelessly connected to the second wireless data transmitter, the first wireless data transmitter is also connected to the integrated control circuit, and the first wireless data transmitter is also used to receive the LED wireless data signal.

5. The fully wireless LED display control system as claimed in claim 4, characterized in that: The transmission mode of the first wireless data transmitter and the transmission mode of the second wireless data transmitter include millimeter wave data transmission.

6. The fully wireless LED display control system according to claim 1, characterized in that: The integrated control circuit comprises: A power control circuit, the power control circuit is connected to the AC voltage, and the power control circuit is connected to the first wireless unit; a conversion board connected to the power control circuit and the first wireless unit; A receiving card is connected to the conversion board.

7. The fully wireless LED display control system according to claim 6, characterized in that: The power control circuit includes an input processing circuit, a controller circuit and an auxiliary power circuit, and the input processing circuit includes: A filter and rectifier circuit, wherein an input end of the filter and rectifier circuit is connected to the AC voltage; A PFC circuit, wherein the input end of the PFC circuit is connected to the output end of the filtering and rectifying circuit, the control end of the PFC circuit is connected to the controller circuit, and the output end of the PFC circuit is connected to the auxiliary power supply circuit and the first wireless unit.

8. The fully wireless LED display control system according to claim 7, characterized in that: The controller circuit comprises: A first output control terminal, wherein the first output control terminal is connected to a control terminal of the PFC circuit; a second output control terminal, the second output control terminal being connected to the first wireless unit; a third output control terminal, the third output control terminal being connected to the auxiliary power supply circuit; A power supply end is connected to the auxiliary power supply circuit.

9. The fully wireless LED display control system according to claim 8, characterized in that: The auxiliary power supply circuit comprises: A transformer, wherein an input end of the transformer is connected to the third output control end, the output end of the PFC circuit and the power supply end, and an output end of the transformer is connected to the conversion board.

10. A fully wireless LED display control device, characterized in that: The fully wireless LED display control device comprises a fully wireless LED display control system as described in any one of claims 1 to 9.

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