Communication method and system of high-refresh-rate pixel lamp for light show

Abstract

The invention provides a communication method and system for a high-refresh-rate pixel lamp for light show. The method comprises the following steps: after a unique identity identification code replied by the pixel lamp is verified, allowing the pixel lamp to access the network; after network access is allowed, a control instruction is sent to the pixel lamps which are allowed to access the network, and the pixel lamps execute the control instruction or reply corresponding state feedback data after receiving the control instruction; the plurality of pixel lamps are connected in series to the first bus and the second bus, the first bus and the second bus are both used for being in communication connection with the pixel lamps, and the pixel lamps further perform signal relay amplification on the first bus and the second bus; when any pixel lamp is in an abnormal working state, the input end and the output end of the first bus are directly conducted, and the input end and the output end of the second bus are directly conducted; therefore, the communication bandwidth and the communication quality with the pixel lamp are improved, the refresh rate of the pixel lamp and the communication distance with the pixel lamp are improved, the stability of the whole light show is greatly improved, and the user experience is further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of high refresh rate pixel lamp communication, and in particular relates to a communication method and system for high refresh rate pixel lamps used in light shows. Background Art

[0002] For existing pixel lights used in light shows, when it is necessary to remotely obtain information such as the model, software version, temperature, error status, etc. of the pixel lights, and to perform management operations such as pixel light address allocation and pixel light configuration, the RDM protocol is currently a common solution on the market; but when customers require both remote management and a higher animation frame rate (such as 60fps or above), the RDM protocol cannot meet the requirements.

[0003] However, based on the technical problems raised above, two common signal architectures have emerged on the market, both of which are based on the RS485 hardware layer; one uses a bus parallel mode, such as Figure 1 As described above, in the bus parallel mode, the communication lines of all pixel lights are connected in parallel on the RS485 bus, and the controller needs to drive all lamps; while the other bus series mode is adopted, such as Figure 2 As shown, the serial mode is also called the link mode. The pixel lights are connected in series one by one, and the signal is transmitted from one pixel light to the next one in turn.

[0004] However, the above two signal architectures have their own advantages and disadvantages. 1. The advantage of the bus parallel mode is that the structure is simple and easy to expand. When one pixel light is abnormal, it usually does not affect other pixel lights on the bus. The disadvantage is that when the number of pixel lights increases, the signal quality will decrease due to the heavy load on the bus, and the communication distance will be limited. 2. The advantage of the bus series mode is that the signal is transmitted from the first pixel light to the last pixel light in sequence. Each pixel light in the middle acts as a signal relay amplification, the signal is enhanced, and can be transmitted over a longer distance. The disadvantage is that when one of the pixel lights fails, it will cause the communication of subsequent pixel lights to be interrupted.

[0005] Secondly, for the RDM (LED lighting remote device management) protocol that can realize device management, its hardware layer is still based on the differential circuit of the DXM512 protocol. The signal transmission is half-duplex, the number of controllable channels is fixed at 512, and the transmission rate is fixed at 250kbps. When the product requires a frame rate of 60fps or above, the transmission time of each frame is greatly reduced. When the RDM protocol transmits 512 channels, the frame rate requirement cannot be met. Either the number of channels transmitted is greatly reduced, and controlling the same number of pixels requires multiple wiring and multiple controllers, which makes it difficult to meet the use requirements of high refresh rate pixel lights. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a communication method and system for high refresh rate pixel lights for light shows, aiming to solve the problem that the prior art cannot provide an effective communication method for high refresh rate pixel lights for light shows, resulting in low communication bandwidth and poor communication quality between the controller and the pixel lights, resulting in low refresh rate of the pixel lights, short communication distance between the pixel lights, poor stability of the entire light show, and poor user experience.

[0007] In one aspect, the present invention provides a communication method for a high refresh rate pixel lamp for a light show, the method comprising the following steps:

[0008] During the first communication, device discovery commands are sent to multiple pixel lights;

[0009] After receiving the device discovery command, the plurality of pixel lights reply with their own unique identification codes;

[0010] After verifying the unique identity code replied by the pixel light, the pixel light is allowed to access the network;

[0011] After allowing access to the network, a control instruction is sent to the pixel light that is allowed to access the network, and the pixel light executes the control instruction or replies with corresponding status feedback data after receiving the control instruction;

[0012] Among them, multiple pixel lights are connected in series on a first bus and a second bus, the first bus and the second bus are both communicatively connected to the pixel lights, and the pixel lights also relay and amplify signals of the first bus and the second bus; when any one of the pixel lights is in an abnormal working state, the input end and the output end of the first bus are directly connected, and the input end and the output end of the second bus are directly connected.

[0013] The method of the present invention, wherein before the unique identity code replied by the pixel light is allowed to access the network after verification:

[0014] If multiple unique identification codes are received at the same time, the search range is reduced and the device discovery instruction is resent to multiple pixel lights, and the cycle is repeated until one unique identification code is received at the same time.

[0015] The method of the present invention, wherein the method further comprises: the pixel light delays replying a unique identification code after receiving the device discovery instruction;

[0016] The delay time is random or set.

[0017] The method of the present invention further comprises:

[0018] After receiving the control instruction, the pixel light verifies the control instruction or verifies the device sending the control instruction, and executes the control instruction or replies with corresponding status feedback data after the verification is passed;

[0019] The control instructions include: manipulation instructions, status query instructions, and online query instructions;

[0020] After executing the control instruction, the pixel lamp replies with status feedback data corresponding to the control instruction.

[0021] The method of the present invention further comprises:

[0022] Sending the device discovery instruction or the control instruction to the pixel light through the first bus, and the pixel light replies with the status feedback data through the second bus or the first bus;

[0023] The first bus or the second bus is half-duplex communication.

[0024] The method of the present invention, wherein the device discovery instruction comprises: inquiring whether the unique identification code of the pixel light itself is among the multiple unique identification codes in a preset unique identification code library;

[0025] The multiple pixel lights replying with a unique identification code after receiving the device discovery instruction includes: the pixel light detects that its own unique identification code is among the multiple unique identification codes in the preset unique identification code library, and then replies with its own unique identification code.

[0026] The method of the present invention, wherein the reducing the search range includes: when inquiring whether the unique identification code of the pixel light itself is within the multiple unique identification codes in the preset unique identification code library, reducing the number of the multiple unique identification codes or reducing it to one unique identification code.

[0027] On the other hand, the present invention provides a communication system for high refresh rate pixel lights for light shows, comprising a plurality of pixel lights and one or more controllers; wherein,

[0028] A first bus connects a plurality of the pixel lamps in series and then is connected to the controller, and a second bus connects a plurality of the pixel lamps in series and then is also connected to the controller;

[0029] The pixel lamp comprises: a first relay and a second relay; the first bus is connected in series to one or more common terminals and one or more normally closed terminals of the first relay, and the second bus is connected in series to one or more common terminals and one or more normally closed terminals of the second relay; the first bus is a single wire or multiple wires, and the second bus is also a single wire or multiple wires;

[0030] The pixel lamp further includes: a plurality of protocol conversion units, a plurality of signal conversion units and a processor;

[0031] The protocol conversion unit converts the first communication protocol on the first bus into a first TTL level protocol and sends the converted protocol to another protocol conversion unit and the processor, and the protocol conversion unit also converts the first TTL level protocol into the first communication protocol;

[0032] The plurality of protocol conversion units at least include: a first protocol conversion unit and a second protocol conversion unit; the first protocol conversion unit is connected to one or more common terminals of the first relay, and the second protocol conversion unit is connected to one or more normally closed terminals of the first relay; the first protocol conversion unit is connected to the second protocol conversion unit and is also connected to the processor;

[0033] The signal conversion unit converts the second communication protocol on the second bus into the second TTL level protocol and sends it to the processor. After receiving the second TTL level protocol, the processor sends it to another signal conversion unit. The signal conversion unit also converts the second TTL level protocol into the second communication protocol.

[0034] The multiple signal conversion units include at least: a first signal conversion unit and a second signal conversion unit; the second signal conversion unit is connected to one or more common ends of the second relay, and the first signal conversion unit is connected to one or more normally closed ends of the second relay; the second signal conversion unit and the first signal conversion unit are both connected to the processor.

[0035] The system of the present invention, wherein the pixel lamp further comprises: a memory communicatively connected to the processor; wherein,

[0036] The memory stores instructions that can be executed by the processor, and the instructions are executed by the processor so that the processor can execute the above-mentioned communication method of high refresh rate pixel lights for light shows.

[0037] The system of the present invention is characterized in that the controller,

[0038] Used for sending device discovery commands to multiple pixel lights during initial communication;

[0039] After verifying the unique identity code replied by the pixel light, the pixel light is allowed to access the network;

[0040] After allowing access to the network, sending a control instruction to the pixel light that is allowed to access the network;

[0041] The status feedback data is received.

[0042] The beneficial effects of the present invention are as follows: during the first communication, a device discovery instruction is sent to multiple pixel lights; after receiving the device discovery instruction, the multiple pixel lights reply with their own unique identification codes; after verifying the unique identification codes replied by the pixel lights, the pixel lights are allowed to access the network; after being allowed to access the network, a control instruction is sent to the pixel lights that are allowed to access the network, and after receiving the control instruction, the pixel lights execute the control instruction or reply with corresponding status feedback data;

[0043] Furthermore, a plurality of pixel lamps are connected in series on a first bus and a second bus, the first bus and the second bus are both used for communication connection with the pixel lamps, and the pixel lamps also relay and amplify signals of the first bus and the second bus; wherein, when any pixel lamp is in an abnormal working state, the input end and the output end of the first bus are directly connected, and the input end and the output end of the second bus are directly connected;

[0044] Thereby improving the communication bandwidth and communication quality between pixel lights, as well as improving the refresh rate of pixel lights and the communication distance between pixel lights; and the failure of a certain pixel light will not affect the operation of other pixel lights, which greatly improves the stability of the entire light show and thus improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a circuit block diagram using a bus parallel mode mentioned in the background technology of the communication method and system for high refresh rate pixel lights for light shows provided by the present invention;

[0046] Figure 2 It is a circuit block diagram using a bus serial connection mode mentioned in the background technology of the communication method and system for high refresh rate pixel lights for light shows provided by the present invention;

[0047] Figure 3 This is a flow chart of the implementation of the communication method of the high refresh rate pixel lamp for light show provided in the first embodiment of the present invention;

[0048] Figure 4 This is a wiring diagram of a communication system for a high refresh rate pixel lamp for a light show provided in Embodiment 2 of the present invention;

[0049] Figure 5This is a circuit block diagram of a pixel lamp of a communication system of a high refresh rate pixel lamp for a light show provided in the second embodiment of the present invention. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments:

[0052] Embodiment 1:

[0053] Figure 3 The implementation process of the communication method of the high refresh rate pixel lamp for light show provided by the first embodiment of the present invention is shown. For the convenience of explanation, only the part related to the embodiment of the present invention is shown. Figure 1 and Figure 2 , as detailed below:

[0054] In step S101, during the first communication, a device discovery instruction is sent to a plurality of pixel lights;

[0055] In an embodiment of the present invention, the device discovery instruction includes: inquiring whether the unique identification code of the pixel light itself is among a plurality of unique identification codes in a preset unique identification code library.

[0056] In step S102, after receiving the device discovery command, the plurality of pixel lights reply with their own unique identification codes;

[0057] In an embodiment of the present invention, after receiving the device discovery instruction, the plurality of pixel lamps reply with a unique identification code, including: when the pixel lamp detects that its own unique identification code is among the plurality of unique identification codes in a preset unique identification code library, it replies with its own unique identification code. The unique identification code of the pixel lamp itself is preset at the factory.

[0058] Furthermore, the method also includes: the pixel light delays replying the unique identification code after receiving the device discovery instruction; the delay time is random or set, so as to avoid multiple unique identification codes replying at the same time, which may cause the program to be garbled and unrecognizable.

[0059] In step S103, the unique identification code replied by the pixel light is verified and the pixel light is allowed to access the network after passing the verification;

[0060] In an embodiment of the present invention, the unique identification code replied by the pixel light is verified and before it is allowed to access the network: if multiple unique identification codes are received at the same time, the search range is reduced, and the device discovery instruction is resent to multiple pixel lights, and the cycle is repeated until a unique identification code is received at the same time.

[0061] Further, reducing the search range includes: when inquiring whether the unique identification code of the pixel lamp itself is within the multiple unique identification codes in the preset unique identification code library, reducing the number of the multiple unique identification codes or reducing it to one unique identification code.

[0062] For example: there are 256 unique identification codes (in the range of 000-255) in the unique identification code library; previously, in order to inquire whether there is a pixel light with a unique identification code within 000-255, if 2 pixel lights respond at this time (there are 2 pixel lights with unique identification codes within 000-255), two unique identification codes will be received and program garbled codes will appear at this time; to prevent program garbled codes, the search range needs to be reduced, such as: inquiring whether there is a pixel light with a unique identification code within 000-128, if 1 pixel light responds at this time (there is 1 pixel light with a unique identification code within 000-128), a complete unique identification code will be received at this time, and then the unique identification code replied by the pixel light will be verified and allowed to access the network after it is passed.

[0063] Furthermore, only some of the unique identification codes of the multiple pixel lights connected to one controller are within the range of 000-255, and the others are connected to another controller; for example: the unique identification codes of the multiple pixel lights connected to one controller are within the range of 000-128, and the unique identification codes of the multiple pixel lights connected to another controller are within the range of 129-255, so as to improve the efficiency of discovering pixel lights, reduce latency, and adapt to the use of light show walls in high-rise buildings (the light show wall is composed of multiple pixel lights, one pixel light represents one pixel point, and the pixel light is provided with multiple red, green and blue lamp beads for display, so as to display various colors).

[0064] In step S104, after the network access is allowed, a control instruction is sent to the pixel light that is allowed to access the network. After receiving the control instruction, the pixel light executes the control instruction or replies with corresponding status feedback data;

[0065] In an embodiment of the present invention, a plurality of pixel lamps are connected in series on a first bus and a second bus, the first bus and the second bus are both communicatively connected to the pixel lamps, and the pixel lamps also relay and amplify signals of the first bus and the second bus, thereby improving the communication distance and the communication quality; when any pixel lamp is in an abnormal working state, the input and output ends of the first bus are directly connected, and the input and output ends of the second bus are directly connected; so that when a certain pixel lamp fails, the operation of other pixel lamps will not be affected.

[0066] Preferably, the method further comprises: sending a device discovery instruction or a control instruction to the pixel light through the first bus, and the pixel light replies with status feedback data through the second bus or the first bus (preferably using the second bus); the first bus or the second bus is half-duplex communication (simplex communication may also be used). The first bus preferably uses an RS485 communication bus, and the second bus preferably uses a TTL level bus (single line), which improves the communication bandwidth and refresh rate while reducing the wiring harness, reducing the cost, and facilitating installation.

[0067] Furthermore, the method further comprises:

[0068] After receiving the control command, the pixel light verifies the control command or verifies the device that sent the control command. After the verification is passed, the control command is executed or the corresponding status feedback data is replied to realize the safety verification.

[0069] The control instructions include: manipulation instructions, status query instructions, and online query instructions; after the pixel light executes the manipulation instruction, it replies with the status feedback data corresponding to the manipulation instruction.

[0070] In an embodiment of the present invention, during the first communication, a device discovery instruction is sent to multiple pixel lights; after receiving the device discovery instruction, the multiple pixel lights reply with their own unique identification codes; after the unique identification codes replied by the pixel lights are verified, the pixel lights are allowed to access the network; after being allowed to access the network, a control instruction is sent to the pixel lights that are allowed to access the network, and after receiving the control instruction, the pixel lights execute the control instruction or reply with corresponding status feedback data;

[0071] Furthermore, a plurality of pixel lamps are connected in series on a first bus and a second bus, the first bus and the second bus are both used for communication connection with the pixel lamps, and the pixel lamps also relay and amplify signals of the first bus and the second bus; wherein, when any pixel lamp is in an abnormal working state, the input end and the output end of the first bus are directly connected, and the input end and the output end of the second bus are directly connected;

[0072] Thereby improving the communication bandwidth and communication quality between pixel lights, as well as improving the refresh rate of pixel lights and the communication distance between pixel lights; and the failure of a certain pixel light will not affect the operation of other pixel lights, which greatly improves the stability of the entire light show and thus improves the user experience.

[0073] Embodiment 2:

[0074] Figure 4 and Figure 5 The structure of the communication system of the high refresh rate pixel lamp for light show provided by the second embodiment of the present invention is shown. For the convenience of description, only the part related to the embodiment of the present invention is shown, including:

[0075] A plurality of pixel lamps 100 and one or more controllers 200;

[0076] The first bus 300 connects the plurality of pixel lamps 100 in series and then connects to the controller 200, and the second bus 400 connects the plurality of pixel lamps 100 in series and then also connects to the controller 200;

[0077] The pixel lamp 100 includes: a first relay 110 and a second relay 120; the first bus 300 is connected in series to one or more common terminals and one or more normally closed terminals of the first relay 110, and the second bus 400 is connected in series to one or more common terminals and one or more normally closed terminals of the second relay 120; the first bus 300 is a single wire or multiple wires, and the second bus 400 is also a single wire or multiple wires; wherein, the first bus 300 preferably uses the RS485 communication bus, and is a half-duplex mode to match the DXM512 protocol, and the second bus 400 preferably uses a TTL level bus (single wire), which improves the communication bandwidth and refresh rate while reducing the wiring harness, reducing the cost, and facilitating installation.

[0078] The pixel lamp 100 further includes: a plurality of protocol conversion units and a plurality of signal conversion units and a processor 130;

[0079] The protocol conversion unit converts the first communication protocol on the first bus 300 into a first TTL level protocol and sends it to another protocol conversion unit and the processor 130. The protocol conversion unit also converts the first TTL level protocol into the first communication protocol.

[0080] The plurality of protocol conversion units at least include: a first protocol conversion unit 141 and a second protocol conversion unit 142; the first protocol conversion unit 141 is connected to one or more common terminals of the first relay 110, and the second protocol conversion unit 142 is connected to one or more normally closed terminals of the first relay 110; the first protocol conversion unit 141 is connected to the second protocol conversion unit 142 and is also connected to the processor 130;

[0081] The signal conversion unit converts the second communication protocol on the second bus 400 into a second TTL level protocol and sends it to the processor 130. After receiving the second TTL level protocol, the processor 130 sends it to another signal conversion unit. The signal conversion unit also converts the second TTL level protocol into the second communication protocol.

[0082] The multiple signal conversion units include at least: a first signal conversion unit 151 and a second signal conversion unit 152; the second signal conversion unit 152 is connected to one or more common ends of the second relay 120, and the first signal conversion unit 151 is connected to one or more normally closed ends of the second relay 120; the second signal conversion unit 152 and the first signal conversion unit 151 are both connected to the processor 130; so as to achieve the situation that a certain pixel lamp fails without affecting the operation of other pixel lamps; wherein the protocol conversion unit and the signal conversion unit are also used to relay and amplify the electrical signals transmitted on the first bus 300 and the second bus 400, so as to extend the transmission distance and stability, thereby improving the communication quality.

[0083] like Figure 5 As shown, the pixel lamp 100 further includes: a memory 160 which is in communication with the processor 130; wherein,

[0084] The memory 160 stores instructions that can be executed by the processor 130, and the instructions are executed by the processor 130 so that the processor 130 can execute the communication method of the high refresh rate pixel lamp 100 for light show according to any one of claims 1-7.

[0085] like Figure 4 and Figure 5 As shown, the controller 200,

[0086] Used for sending device discovery instructions to multiple pixel lights 100 during initial communication;

[0087] After the unique identification code replied by the pixel light 100 is verified, the pixel light 100 is allowed to access the network;

[0088] After being allowed to access the network, a control instruction is sent to the pixel light 100 that is allowed to access the network;

[0089] Receive status feedback data.

[0090] In the embodiment of the present invention, once the controller 200 allows the pixel light 100 to access the network, it can send further commands (control instructions) to request the device to return more information, such as device name, software version, hardware status, etc. Through the control instructions, the controller 200 can not only read the status of the pixel light, but also configure it, such as modifying the starting address of the device.

[0091] In the embodiment of the present invention, each unit of the communication system of the high refresh rate pixel light for light show can be implemented by a corresponding hardware or software unit. Each unit can be an independent software or hardware unit or integrated into one software or hardware unit, which is not intended to limit the present invention.

[0092] What has been described herein, in this specification and in the drawings, includes examples of communication methods and systems capable of providing high refresh rate pixel lights for light shows. Of course, it is not possible to describe every conceivable combination of elements and / or methods for the purpose of describing the various features of the present disclosure, but it will be appreciated that many additional combinations and permutations of the disclosed features are possible. Therefore, it is apparent that various modifications can be made to the present disclosure without departing from the scope or spirit of the present disclosure. In addition, or in the alternative, other embodiments of the present disclosure may be apparent from consideration of the present specification and drawings and from the practice of the present disclosure as presented herein. It is intended that the examples set forth in this specification and in the drawings be considered in all respects to be illustrative and not restrictive. Although specific terms are employed herein, they are used in a general and descriptive sense and not for purposes of limitation.

Claims

1. A communication method for high refresh rate pixel lights for light shows, characterized in that: The method comprises the following steps: During the first communication, device discovery commands are sent to multiple pixel lights; After receiving the device discovery command, the plurality of pixel lights reply with their own unique identification codes; After verifying the unique identity code replied by the pixel light, the pixel light is allowed to access the network; After allowing access to the network, a control instruction is sent to the pixel light that is allowed to access the network, and the pixel light executes the control instruction or replies with corresponding status feedback data after receiving the control instruction; Among them, multiple pixel lights are connected in series on a first bus and a second bus, the first bus and the second bus are both communicatively connected to the pixel lights, and the pixel lights also relay and amplify signals of the first bus and the second bus; when any one of the pixel lights is in an abnormal working state, the input end and the output end of the first bus are directly connected, and the input end and the output end of the second bus are directly connected.

2. The method according to claim 1, characterized in that After the unique identification code replied by the pixel light is verified and before it is allowed to access the network: If multiple unique identification codes are received at the same time, the search range is reduced and the device discovery instruction is resent to multiple pixel lights, and the cycle is repeated until one unique identification code is received at the same time.

3. The method according to claim 1, characterized in that The method further includes: the pixel light delaying replying a unique identification code after receiving the device discovery instruction; The delay time is random or set.

4. The method according to claim 1, characterized in that The method further comprises: After receiving the control instruction, the pixel light verifies the control instruction or verifies the device sending the control instruction, and executes the control instruction or replies with corresponding status feedback data after the verification is passed; The control instructions include: manipulation instructions, status query instructions, and online query instructions; After executing the control instruction, the pixel lamp replies with status feedback data corresponding to the control instruction.

5. The method according to claim 1, characterized in that The method further comprises: Sending the device discovery instruction or the control instruction to the pixel light through the first bus, and the pixel light replies with the status feedback data through the second bus or the first bus; The first bus or the second bus is half-duplex communication.

6. The method according to claim 1, characterized in that The device discovery instruction includes: inquiring whether the unique identification code of the pixel light itself is among the multiple unique identification codes in a preset unique identification code library; The multiple pixel lights replying with a unique identification code after receiving the device discovery instruction includes: the pixel light detects that its own unique identification code is among the multiple unique identification codes in the preset unique identification code library, and then replies with its own unique identification code.

7. The method according to claim 2, characterized in that The reducing the search range includes: when inquiring whether the unique identification code of the pixel lamp itself is within the multiple unique identification codes in the preset unique identification code library, reducing the number of the multiple unique identification codes or reducing it to one unique identification code.

8. A communication system for high refresh rate pixel lights for light shows, comprising a plurality of pixel lights and one or more controllers; characterized in that: A first bus connects a plurality of the pixel lamps in series and then is connected to the controller, and a second bus connects a plurality of the pixel lamps in series and then is also connected to the controller; The pixel lamp comprises: a first relay and a second relay; the first bus is connected in series to one or more common terminals and one or more normally closed terminals of the first relay, and the second bus is connected in series to one or more common terminals and one or more normally closed terminals of the second relay; the first bus is a single wire or multiple wires, and the second bus is also a single wire or multiple wires; The pixel lamp further includes: a plurality of protocol conversion units, a plurality of signal conversion units and a processor; The protocol conversion unit converts the first communication protocol on the first bus into a first TTL level protocol and sends the converted protocol to another protocol conversion unit and the processor, and the protocol conversion unit also converts the first TTL level protocol into the first communication protocol; The plurality of protocol conversion units at least include: a first protocol conversion unit and a second protocol conversion unit; the first protocol conversion unit is connected to one or more common terminals of the first relay, and the second protocol conversion unit is connected to one or more normally closed terminals of the first relay; the first protocol conversion unit is connected to the second protocol conversion unit and is also connected to the processor; The signal conversion unit converts the second communication protocol on the second bus into the second TTL level protocol and sends it to the processor. After receiving the second TTL level protocol, the processor sends it to another signal conversion unit. The signal conversion unit also converts the second TTL level protocol into the second communication protocol. The multiple signal conversion units include at least: a first signal conversion unit and a second signal conversion unit; the second signal conversion unit is connected to one or more common ends of the second relay, and the first signal conversion unit is connected to one or more normally closed ends of the second relay; the second signal conversion unit and the first signal conversion unit are both connected to the processor.

9. The system according to claim 8, characterized in that The pixel lamp further includes: a memory connected to the processor in communication; wherein, The memory stores instructions executable by the processor, and the instructions are executed by the processor so that the processor can execute the communication method for high refresh rate pixel lights for light shows as described in any one of claims 1-7.

10. The system according to claim 9, characterized in that the controller, Used for sending device discovery commands to multiple pixel lights during initial communication; After verifying the unique identity code replied by the pixel light, the pixel light is allowed to access the network; After allowing access to the network, sending a control instruction to the pixel light that is allowed to access the network; The status feedback data is received.

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