37results about How to "Improve communication distance" patented technology

The invention discloses a bolt looseness monitoring device and a bolt. The device comprises an acquisition system, a main control system, a communication system and a terminal device, the acquisition system acquires bolt loosening data and sends the bolt loosening data to the main control system, and the bolt loosening data processed by the main control system is sent to the communication system and wirelessly transmitted to the terminal device by the communication system; wherein the acquisition system, the main control system and the communication system are integrated on a foldable flexible PCB (Printed Circuit Board), a preset crease is designed on the flexible PCB, and a nut style is formed after the flexible PCB is folded according to the crease. When the bolt is loosened, the monitoring system does not need to be disassembled, the system is fixed to the head of the bolt and can be firmly fastened to the head of the bolt under the action of gravity, and the risk that the system falls off is reduced.

The utility model relates to the technical field of pension emergency call, and discloses a low-power-consumption SOS emergency button which comprises a button shell lower cover, the top end of the button shell lower cover is fixedly connected with a button shell upper cover through a bolt, and the middle of the button shell upper cover is movably connected with a button body. A main control module and a lorawan communication module are arranged in the lower cover of the button shell, the main control module comprises a power supply part and an alarm button triggering part, the power supply part comprises a battery, a rectifier and a direct-current transformer, and the battery, the rectifier and the direct-current transformer finally generate a DC3V power supply. When the device operates with low power consumption, the current value is 5uA, the farthest communication distance can reach 5-10 kilometers, and the optional working frequency bands are 470, 868, 915 MHz and the like, so that the problem of high power consumption of a traditional SOS emergency button is solved, the communication distance is prolonged, the working frequency band range is enlarged, and the use performance of the SOS emergency button is improved.

The invention discloses a method for detecting and correcting an infrared communication carrier frequency of an electric energy meter. The method comprises the following steps: S1, firstly, initializing the electric energy meter after the electric energy meter is electrified; s2, configuring a PWM clock frequency through an MCU of the electric energy meter; s3, performing register setting; s4, starting the electric energy meter to output PWM square waves; s5, the hand-held detection terminal performs frequency sampling detection on the square wave output by the electric energy meter; s6, calculating a measured square wave frequency value; s7, correcting a frequency division coefficient K value; and S8, communicating with an MCU (Microprogrammed Control Unit) in the electric energy meter through a data communication interface of the handheld detection terminal. According to the method, the square waves output by the electric energy meter are regularly measured and corrected through the handheld detection terminal, the stability and reliability of infrared communication are guaranteed, it is also guaranteed that infrared communication is carried out at the optimal frequency performance, the management efficiency of electric power operation and maintenance is improved, and meanwhile the energy consumption is reduced. And the problems of infrared communication failure and short infrared communication distance caused by infrared carrier center frequency deviation are avoided.

The application provides an AM-PM distortion calibration method applied to an UWB transmitter and belongs to the field of UWB communication. The method adds a sampling resistor between a linear voltage stabilizing power supply LDO and a digital power amplifier DPA driving stage of the UWB transmitter using a digital power amplifier, so as to simulate the instantaneous change of the power supply voltage of the DPA driving stage when the UWB pulse is transmitted; an adjustable delay unit is added between a carrier input port LO and the DPA driving stage; the continuous sine wave is transmitted, the phase information under each digital baseband amplitude control word is collected to form original data of the AM-PM distortion of the UWB transmitter, the digital baseband output AM-PM control word is used to control the adjustable delay unit to output the phase which is opposite to the original data and has the same size, so that the phase predistortion of the transmitted UWB pulse is realized, and the AM-PM distortion calibration is completed. The application has the advantages of simple implementation and strong compensation capacity.

The invention relates to the technical field of network communication cabinets, in particular to a network communication cabinet and an internal anti-shielding structure thereof.The network communication cabinet comprises a network communication cabinet body, a cabinet door body is installed on the right side surface of the network communication cabinet body, a through groove is formed in the right side of the cabinet door body, and a supporting plate is installed on the inner side wall of the network communication cabinet body; a communication unit is arranged on the surface of the supporting plate, a first shielding cover and a second shielding cover are sequentially installed on the surface of the supporting plate from front to back, and the first shielding cover and the second shielding cover are the same in structure. According to the invention, heat emitted by the communication unit is rapidly transmitted to the outside without blowing, the overall transmission effect is good, and the position of the communication unit is fixed through the clamping blocks in the heat dissipation process of the communication unit. And the first shielding case and the second shielding case are closer to the communication unit, so that the anti-shielding function of the communication unit is enhanced.

The invention discloses a magnetic bar antenna structure, which belongs to the technical field of communication, and comprises a connecting seat and three magnetic bar antennas, the magnetic bar antennas are magnetic bars which are orthogonal in pairs and are wound with coils, and the magnetic bar antennas are fixed on the connecting seat made of a non-magnetic material; the magnetic bar antennas are externally connected with resonance circuits respectively. Each resonance circuit comprises a resonance capacitor and a resonance inductor. The communication method of the magnetic bar antenna structure comprises the following steps: determining communication parameters according to communication requirements, and obtaining structure parameters of a magnetic bar antenna; the communication parameters comprise the minimum frequency bandwidth; calculating the distributed inductance of the magnetic rod antenna according to the obtained structural parameters; calculating a frequency bandwidth according to the calculated distributed inductance; judging whether the structural parameters of the magnetic bar antenna meet communication requirements or not according to the calculated frequency bandwidth; and when the calculated frequency bandwidth is greater than the obtained minimum frequency bandwidth, determining that the structural parameters of the magnetic bar antenna meet communication requirements. The problem that an existing communication coil is unstable in structure or high in manufacturing difficulty can be solved.

The utility model discloses an ultraviolet light terminal based on NLOS (Non-Line Of Sight) communication, which belongs to the technical field of wireless optical communication and networking and comprises a plurality of transceiving end faces arranged around a central shaft. Each receiving and transmitting end face is provided with a transmitting part and a receiving part; all the transmitting parts adopt the same transmitting system, and each transmitting part is a directional transmitting part; all the receiving parts adopt the same receiving system, and all the receiving parts jointly form an omnidirectional receiving part; the transmitting part comprises an ultraviolet light source and a transmitting antenna, the ultraviolet light source is used for converting an electric signal into an optical signal, and the transmitting antenna is used for converging and transmitting the optical signal; the receiving part comprises a photomultiplier and a receiving antenna, the photomultiplier is used for converting an optical signal into an electric signal, the receiving antenna is used for collecting the optical signal and providing antenna gain, and the ultraviolet light terminal not only realizes the transmission advantages of large bandwidth and small time delay, but also avoids receiving loopholes and improves the receiving detection efficiency.

The invention provides a clustering networking method and device for a pure directional self-organizing network, and relates to the technical field of networks, and the method comprises the steps: initializing nodes, classifying the nodes into each cluster through a clustering and cluster head consensus mechanism, and selecting a cluster head node of each cluster; constructing a star network by taking each cluster head node as a central node through a rapid networking mechanism combining wide and narrow beams; and in response to the situation that the cluster head node cannot continuously serve as the cluster head, reselecting the cluster head node and reconstructing the network. By determining the cluster head node and constructing the star network, the robustness, survivability and communication efficiency of the network are improved. By adopting the directional antenna, the network capacity and the communication distance are improved, and certain robustness and survivability are ensured while the concealment, the safety and the anti-interference capability are enhanced.

This invention relates to the field of radio frequency communication technology and discloses a communication frequency selection method and apparatus based on RSSI. The method includes: sweeping a target frequency band using step units to obtain a set of sweep points; performing peak detection on the sweep point set to obtain the peak received signal strength and interference frequencies; calculating at least one third-order intermodulation point within the target frequency band based on each interference frequency; fitting the sweep point set, each interference frequency, and each third-order intermodulation point to obtain a target sweep point set; performing weighted calculations on each target sweep point in the target sweep point set based on antenna weighting coefficients and the center frequency to obtain a received signal strength weighted value; and selecting the optimal frequency point based on each received signal strength weighted value. Therefore, implementing this invention can improve the accuracy and reliability of communication frequency selection, extend communication distance, and ensure the comprehensiveness and accuracy of frequency selection, thereby improving the stability and anti-interference capability of wireless audio communication.

The present disclosure discloses a communication method, system, intelligent terminal, communication device, equipment, and storage medium. The method includes: determining a first device, the first device being one of a plurality of communication devices around the intelligent terminal; connecting to the first device; and sending a control instruction to the first device, wherein the control instruction is used to instruct the first device to be used as a relay node to relay the control instruction to a target communication device. Through the communication devices forwarding the control instruction, each communication device can quickly receive the control instruction, improving the real-time nature of communication and, through forwarding, communication devices further away can also receive the control instruction, extending the communication distance.

The present application provides an antenna device and an electronic device. The antenna device includes: a dielectric substrate, an antenna coil and a conductive member. The antenna coil is arranged on the dielectric substrate, and the antenna coil includes a winding center portion and at least one first conductor segment and at least one second conductor segment arranged on opposite sides of the winding center portion, and the first conductor segment and the second conductor segment are connected in series. The conductive member is arranged on the dielectric substrate, the conductive member is arranged opposite to the antenna coil, and the orthographic projection of the conductive member on the dielectric substrate covers at least part of the orthographic projection of the first conductor segment on the dielectric substrate. The conductive member is electrically connected to the first conductor segment, and the magnetic field generated by the conductive member is used to offset the magnetic field generated by the first conductor segment. In the antenna device provided in the present application, the second conductor segment as the main radiator has better communication performance.

The present invention provides a drone swarm networking measurement and control communication link and communication method, including airborne equipment and local equipment, the airborne equipment includes an airborne data terminal host and an omnidirectional antenna, and the local equipment includes a local data terminal host, a positioning module, and an omnidirectional and directional integrated antenna. The present invention adopts a time division multiple access, time division duplex system, a single-hop network, and a single-channel form of communication equipment. The measurement and control communication link and the inter-machine communication link work at the same frequency point, and the inter-machine communication, telemetry, remote control, and mission load information are compositely transmitted. In addition, the command and control node adopts a measurement and control communication form that combines directional antennas and omnidirectional antennas and works in time and stage, which simplifies the design of airborne communication equipment, realizes the remote transmission of telemetry, remote control, and mission load information, and maintains the inter-machine communication function.

The invention relates to an ocean vibroseis energy enhancement structure based on a Fresnel lens, and relates to the technical field of ocean exploration. Comprising a marine vibroseis body, a Fresnel acoustic lens and a second lens. The Fresnel acoustic lens and the second lens are located on the two sides of the ocean vibroseis body respectively. The Fresnel acoustic lens is used for gathering energy on the two sides of the ocean vibroseis body to one side of the ocean vibroseis body, and the second lens is used for gathering energy, adjusting the signal propagation direction, eliminating the cosine error of the Fresnel acoustic lens structure and optimizing the quality of the vibration signal of the vibroseis. According to the method, the energy level output by the seismic source can be effectively improved, the seismic source exploration and communication distance is increased, and the method has important application value and development prospect.

This disclosure relates to a communication method, communication device, Bluetooth device, communication system, medium, and product. The communication method, executed by a first Bluetooth device, includes: generating a target team identifier in response to initiating a team formation operation, the target team identifier being used to form a first communication team; forming a team with the second Bluetooth device in response to receiving a first extended broadcast sent by a second Bluetooth device, the first extended broadcast including the target team identifier and the device identifier of the second Bluetooth device; and sending a first periodic broadcast in the first communication team in response to the completion of the first communication team formation, the first periodic broadcast including communication data to be sent by the first Bluetooth device. Thus, by using Bluetooth Low Energy extended broadcast to achieve team formation for multiple Bluetooth devices, the goal of rapid team formation and flexible entry and exit from teams can be achieved. Furthermore, using periodic broadcast for communication extends the communication distance and improves the communication experience.

The utility model relates to a communication system. The communication system comprises serial port communication equipment, communication gateway equipment and Ethernet communication equipment, the serial port communication device, the communication gateway device and the Ethernet communication device are connected in series. The communication gateway equipment is used for data conversion between serial port communication data of the serial port communication equipment and Ethernet communication data of the Ethernet communication equipment; the first distance between the communication gateway equipment and the serial port communication equipment is smaller than the second distance between the communication gateway equipment and the Ethernet communication equipment. According to the embodiment of the invention, the communication between the serial port equipment and the Ethernet equipment can be realized, the communication distance between the two kinds of equipment is increased, and the communication speed between the two kinds of equipment is increased.

The invention discloses a quantum secure direct communication method based on a symmetric all-passive light source, and the method comprises the steps: an information receiver uses four coherent pulses with random phases, generates weak coherent pulse beams with random intensity and random quantum states through the interference, beam combination and attenuation of a beam splitter and a polarization beam splitter, and transmits the weak coherent pulse beams to an information transmitter; and the information sender sends the photon pulse to the information receiver after coding. And the information receiver decodes according to the pulse information initially sent by the information receiver and restores the information sent by the information sender. According to the method, the intensity of the light source and the quantum state do not need to be actively modulated, the passive decoy state and the passive coding can be realized at the same time, the experimental operation can be simplified, the side channel attack of a third-party eavesdropper on the light source modulator can be resisted, and the security of quantum secure direct communication is enhanced.

The invention discloses a communication signal processing method, electronic equipment and a medium, a communication signal processing system comprises a plurality of receiving channels, each receiving channel comprises at least one sub-channel, and the method comprises the following steps: acquiring a transmission signal of a to-be-processed service; respectively receiving and processing the same transmitting signal by using a plurality of sub-channels on different receiving channels to obtain a plurality of paths of processing signals; and combining the multiple paths of processing signals to obtain a target communication signal. The communication quality and the communication distance can be improved.

This application discloses a GaN-based micro-LED epitaxial structure, device, and fabrication method. The GaN-based micro-LED epitaxial structure includes, along the growth direction, a substrate, a buffer layer, an N-type doped GaN electron injection layer, an active region, and an Al2O3 layer. y Ga 1‑y The substrate consists of an N-type electron blocking layer and a P-type doped GaN hole injection layer; the substrate is selected from a (111) crystal plane single-crystal silicon substrate, a c-axis single-crystal sapphire substrate, a c-axis single-crystal silicon carbide substrate, or a c-axis self-supporting single-crystal gallium nitride substrate; the active region includes an InGaN-based light-emitting structure, which is at least one of an InGaN / GaN alternating multi-quantum-well structure, a GaN / InGaN / GaN single-quantum-well structure, and an InGaN quantum dot structure. This application shortens the carrier radiative recombination lifetime, weakens the quantum-confined Stark effect, and improves the radiative recombination rate by employing a thin quantum well or quantum dot active region structure, thereby enhancing the device's modulation bandwidth and photoelectric efficiency, meeting the performance requirements of light sources for applications such as data center optical interconnects, co-packaged optics, and high-speed visible light communication.

The invention relates to the technical field of wireless communication, and discloses an FSK-based backscatter communication method and system, and the method comprises the steps: carrying out the analysis of an actual link budget, constructing an FSK backscatter communication model, and enabling the analysis to comprise the analysis of the factors of hardware insertion loss, non-ideal antenna gain, path loss index and noise floor; a link budget is calculated, communication parameters are set to complete the communication process of backscattering, and the communication process comprises FSK modulation, incoherent demodulation and self-adaptive matched filtering processing. According to the method, various factors in actual deployment are considered for modeling and verification of the low-power-consumption backscatter communication system, the reliability of the system is effectively improved, the power consumption of the system is reduced, the communication distance of the system is optimized through theoretical analysis and experimental verification, and the system is made to adapt to different communication environments and application requirements.

The utility model belongs to full duplex communication technical field, concretely relates to a kind of conversion circuit, conversion module and data transmission device.Conversion circuit is used to realize TTL full duplex communication based on RS-485 interface, including first 485 chip, second 485 chip, first filter unit, second filter unit, first matching resistance, second matching resistance, data transmission interface;First 485 chip is used to electrically connected the RX end of TTL serial port, and with the receiving output end electrically connected of first filter unit, first matching resistance, data transmission interface;Second 485 chip is used to electrically connected the TX end of TTL serial port, and with the sending input end electrically connected of second filter unit, second matching resistance, data transmission interface, to this realizes a kind of communication technical scheme with the advantage of serial port TTL communication and RS-485 communication.

The utility model is suitable for the technical field of information science and technology, and relates to a data acquisition device for LoRa communication, which comprises a main control module, a LoRa communication module, an HPLC module and a power supply module, the MCU of the main control module is connected with the chip U5 of the LoRa communication module through a serial port MCURXD or a serial port MCU-TXD, and is used for uploading the data of the LoRa water meter or the LoRa gas meter acquired by the LoRa module to the MCU of the main control module for processing; the MCU of the main control module is connected with a chip U6 of the HPLC module through a serial port HPLCTXD or a serial port HPLCRXD, and is used for interacting LoRa water meter or LoRa gas meter data acquired by the MCU of the main control module with the HPLC module; and the power supply module is electrically connected with the main control module and the HPLC module and is used for supplying power to the whole data acquisition equipment. The LoRa gas meter data acquisition device is simple in structure and convenient to work, data interaction is carried out between a downlink and a LoRa water meter or a LoRa gas meter through the LoRa communication module, communication is carried out between an uplink and a concentrator through a low-voltage power line by adopting the HPLC module, acquisition is convenient, cost is low, and the difficulty of data acquisition is greatly reduced.

The invention provides a JTAG (Joint Test Action Group) cable connection assembly and a connection method for enhancing the anti-interference capability of a JTAG interface. The assembly is characterized in that the assembly comprises a target circuit, a JTAG cable, a JTAG adapter plate and a JTAG downloader, the JTAG cable is connected with the target circuit and the JTAG adapter plate, the JTAG adapter plate is connected with the JTAG adapter plate, a JTAG interface circuit is used for converting a JTAG single-end signal from a programmable chip into an LVDS differential signal, and the LVDS differential signal is used for downloading the LVDS differential signal. The LVDS differential signal from the test cable is converted into a JTAG single-ended signal, and the JTAG single-ended signal is sent to the programmable chip; and the digital control switch is used for disconnecting the physical connection between the JTAG cable and the JTAG interface of the programmable chip. According to the invention, the communication distance of the JTAG interface can be effectively prolonged, and the anti-interference capability of the JTAG interface can be enhanced.

The present invention belongs to the technical field of quantum secure communication, and relates to a four-state discrete modulation continuous variable quantum secure direct communication method, which specifically comprises the following steps: S1, the information sender Alice divides the information into data blocks and adds detection bits to obtain secret information; S2, the information sender Alice prepares a dual-mode compressed entangled light S A Beam and S B The information sender Alice keeps S A The beam is used as the signal light, and S B The light beam is sent to the information receiver Bob as detection light; S3, after receiving the detection light, the information receiver Bob authenticates the identity with the information sender Alice and determines whether the channel is secure; in the present invention, in the information modulation stage, the method maps the secret information with the detection bit to four coherent states and performs four-state discrete modulation, which is not only more compatible with the current classical communication system, but also can achieve a longer communication distance than Gaussian modulation continuous variable quantum secure direct communication.

This disclosure provides a metasurface antenna element, comprising a first metal layer, a first dielectric substrate, a second metal layer, a second dielectric substrate, and a third metal layer stacked sequentially; the second metal layer has various shaped cutouts; the orthographic projections of the first dielectric substrate, the second dielectric substrate, and the second metal layer on a preset surface coincide, and their orthographic projection outlines are all first regular polygons; the orthographic projections of the first metal layer and the third metal layer on the preset surface coincide, and their orthographic projection outlines are all second regular polygons; the side length of the first regular polygon is a first preset multiple of the incident wave wavelength at the center frequency, and the side length of the second regular polygon is a second preset multiple of the incident wave wavelength at the center frequency, wherein both the first preset multiple and the second preset multiple are less than 1. This disclosure also provides an antenna structure.

The invention belongs to the technical field of medical treatment, and discloses a circuit of an in-vitro program control device of an implantable medical instrument, which comprises an external program control device A1 and an implantable medical device C1, the external program control equipment A1 comprises seven parts, namely a coil group a1, a coil control module a2, a signal filtering and amplifying module a3, a data signal shaping module a4, an MCU (Microprogrammed Control Unit) main control module a5, an upper computer a6 and a feedback signal detection module a7. A plurality of coils of the in-vitro program control equipment are integrated into one coil, so that multiple types of implantable medical equipment adopting different in-vivo coil parameters only need to correspond to one in-vitro program control equipment, the in-vitro program control equipment is internally provided with the coils capable of switching different parameters, and the in-vitro program control equipment can be conveniently switched through simple switching. Therefore, the communication with various types of implantable medical devices can be realized, the maintenance convenience of the implantable medical devices is greatly improved, and the operation difficulty of patients and doctors is remarkably simplified.

The invention discloses a carrier rocket maritime launching communication system and communication method, and belongs to the technical field of carrier rocket maritime launching, and the carrier rocket maritime launching communication system comprises a front-end test launch control system, a rear-end test launch control system and a relay wireless communication device. The front-end test launch control system is arranged on a launch ship or an offshore launch platform for bearing a rocket body when the rocket is launched; the rear-end test launch control system is arranged in a land rear-end test launch control hall; the relay wireless communication device is arranged between the front-end test launch control system and the rear-end test launch control system; the front-end test launch control system and the rear-end test launch control system are in real-time wireless communication connection through the relay wireless communication device in a relay wireless communication mode. According to the invention, the communication requirement of offshore launch of the carrier rocket can be met, effective communication of offshore launch of the carrier rocket is realized, and the reliability and communication distance of offshore launch networking of the carrier rocket are greatly improved.

The application relates to the technical field of virtual reality interaction, and discloses a multi-modal feedback VR device Bluetooth interaction system, which comprises a virtual reality host device, a Bluetooth communication link, a microcontroller unit and a tactile and olfactory feedback execution module. The microcontroller unit receives virtual physical event data by using a ring buffer which is maintained with a read-write pointer, and through an overlap strategy when a write pointer chases a read pointer and a timeout reset mechanism, the real-time performance and stability of instruction processing are ensured. The microcontroller unit runs a segmented control algorithm, maps a wind speed parameter into a pulse width modulation signal, and eliminates a motor starting dead zone. Meanwhile, a hardware timer is used to load a synchronous delay parameter, and a physical response time difference of tactile and olfactory feedback is accurately compensated. The application solves the problems of communication lag, control nonlinearity and sensory timing asynchronization in multi-modal feedback.

This application discloses a power distribution component and a power grid system. The power distribution component includes a main control box, sub-control boxes, and a first line. The main control box is used for electrical connection to the mains power grid and for electrical connection to loads and / or household distribution boxes. The sub-control boxes are separately installed from the main control box and are used for electrical connection to energy storage devices. The first line electrically connects the sub-control boxes and the main control box, and power is transmitted between the sub-control boxes and the main control box through the first line. The sub-control boxes and the main control box communicate via power line carrier communication through the first line, eliminating the need for additional communication lines. The power distribution component integrates power supply and communication, and the main control box and sub-control boxes can be arranged separately without distance requirements, increasing the installation flexibility of the power distribution component and expanding the application scenarios and scope of use for the power distribution component and energy storage devices.

The invention discloses a method and equipment for determining the layout number of water quality monitoring nodes and a medium, and belongs to the technical field of water quality monitoring node layout. Through three-dimensional modeling and uniform cubic lattice deployment, the sensing radius and the communication distance of monitoring nodes are optimized, the coverage continuity of a monitoring network and the integrity of data are improved, the comprehensiveness and the deepness of water quality monitoring are ensured, and the monitoring efficiency and the accuracy of the data are improved. Under the condition that obstacles exist in the water area, the node deployment is optimized through the ant lion optimization algorithm, and the problem that coping strategies are lacked in the prior art is effectively solved. According to the method, the optimal deployment scheme is found through the Pareto optimal solution set, the coverage rate and connectivity of a monitoring area are improved, the number of nodes is reduced, optimization of cost benefits is achieved, it is ensured that the optimal balance point is found among multiple targets in monitoring network deployment, the optimal deployment scheme is found through the Pareto optimal solution set, and meanwhile the number of the nodes is reduced.

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.