198 results about "Transceiver chip" patented technology

The invention provides an FPGA (Field Programmable Gate Array) implementation method for receiving and transmitting 16-path CAN (Controller Area Network) and 16-path serial port data. The FPGA implementation method comprises the following steps of: constructing a hardware architecture suitable for efficiently receiving and transmitting the 16-path CAN and 16-path serial port data by utilizing the characteristic of cooperative work of a processing system PS of XC7Z045FFG900-2 and a programmable logic PL; a CAN bus controller on the PL side is configured; configuring a serial port transceiver chip at a PL side; a ping-pong buffering function on a PL side is realized; establishing register mapping; and a double-AXI interface collaborative interaction mechanism of the PL side and the PS side is realized. The method has the beneficial effects that the ping-pong buffer technology and the parallel processing capability of the FPGA are adopted, so that efficient concurrent processing of 16-path CAN and 16-path serial port data is realized; through reasonable hardware design and register configuration, the stability of communication between the CAN bus and the serial port is ensured; based on the programmable characteristic of the FPGA, the system is flexibly configured and adjusted according to different application requirements; the advantages of an XC7Z045FFG900-2 hardware platform are fully exerted, and the resources of the PL side and the PS side are reasonably distributed and utilized.

A radar system employs a self-test to determine time synchronization of cascaded radar transceiver integrated circuits (ICs) in the radar system that are used in a motor vehicle. To effectively detect information in the environment, the radar system periodically executes the self-test operation by sending a trigger signal to at least one follower radar transceiver IC. Moreover, the leader radar transceiver IC generates a chirp signal at a set frequency and transmits this. In response to receiving the trigger signal, the at least one follower radar transceiver IC receives the chirp signal transmitted from leader and generates its own local chirp signal with the set frequency, but also includes a frequency offset. The local chirp signal is then used to down-convert the received signal into an intermediate frequency (IF) signal. The IF signal is filtered, analog-to-digital converted, and processed to determine a beat frequency. The beat frequency is compared to the frequency offset to determine the level of synchronization between the leader radar transceiver IC and the at least one follower radar transceiver IC.

The invention relates to the technical field of microwave communication, and discloses a microwave communication radio frequency front-end transceiver chip and a dynamic bandwidth allocation method and system. The system comprises a radio frequency front-end transceiver chip; the control module is electrically connected with the radio frequency front-end transceiver chip and is configured to receive the digital signal sent by the analog-to-digital conversion module so as to extract signal characteristic parameters, and the signal characteristic parameters comprise a signal-to-noise ratio, a multipath fading coefficient and a target scene communication protocol parameter; determining an initial bandwidth allocation strategy and a power control threshold according to the target scene communication protocol parameters; based on the signal-to-noise ratio and the multipath fading coefficient, the working frequency band and the passband width of the multi-frequency-band filter bank are dynamically adjusted through an adaptive particle swarm optimization algorithm, and a gain control signal of the power amplification module is generated, so that the transmitting power is minimized on the premise of meeting the communication distance requirement, and dynamic bandwidth allocation is completed. And the performance and the adaptability of microwave communication in a complex scene are remarkably improved.

The embodiment of the invention provides a radio frequency transceiver chip calibration method and device, electronic equipment and a readable storage medium, and relates to the technical field of communication. The method comprises the following steps: sending a first continuous sine wave signal to a radio frequency transceiver chip; receiving a second continuous sine wave signal returned by the radio frequency transceiver chip based on the current delay value and the first continuous sine wave signal; sampling the second continuous sine wave signal to obtain respective phases of a plurality of sampling points; judging whether the phases are continuous or not according to the phases of the sampling points; under the condition of determining that the phases are continuous, determining that the current delay value is a target delay value and the calibration is completed; and under the condition that the phase is determined to be discontinuous, the current delay value is adjusted, and calibration is carried out again. Therefore, the calibration efficiency can be improved, and meanwhile, the problem that the phase continuity requirement cannot be met after calibration can be avoided.

The embodiment of the utility model provides an amplification circuit and a radio frequency transceiver chip, the amplification circuit comprises one stage of amplification units or multiple stages of amplification units connected in series, and each stage of amplification unit at least comprises an amplification transistor; the bias unit is connected with the grid electrode of the amplification transistor and is used for providing bias current or bias voltage; the detection unit is connected with the signal input end of the amplification circuit and used for detecting the input signal received by the amplification circuit and then outputting a detection signal, and the amplitude of the detection signal is in positive correlation with the power of the input signal; the first end of the switch is connected with the bias unit, the second end of the switch is grounded, the control end of the switch is connected with the signal output end of the detection unit, and the switch is used for controlling the bias unit to be turned on and turned off according to the detection signal.

The invention relates to a CAN bus control type PS I5 transceiver module which comprises a main control module, a communication interface is composed of a CAN communication module and a serial port, the CAN communication module is used for communicating with other equipment, and the main control module is connected with an upper computer through the serial port for communication; the power supply module reduces the direct-current 12V voltage to the working voltage of the single chip microcomputer to supply power to the main control module; the PS I 5 transceiver chip is respectively connected with the sensor and the main control module, and is used for receiving a Manchester encoding electric signal of a PS I 5 bus and sending an electric signal conforming to the PS I 5 standard to the sensor; the master control module is used for receiving and storing sensor data corresponding to different states and events. Compared with the prior art, CAN and serial communication are combined with a power-down storage state flag bit, so that the equipment can be compatible with a plurality of pieces of equipment for coordinating work. The non-PS I5 production equipment can be refitted into PS I5 sensor production equipment as long as the non-PS I5 production equipment is provided with a CAN communication interface, reading, configuration, analysis and diagnosis of a PS I5 sensor can be carried out, and the production link of the PS I5 sensor is effectively supported.

This disclosure provides an optical interconnect module, an optical interconnect device, and a computing system. The optical interconnect module includes a photonic integrated circuit chip and a transceiver chip. The photonic integrated circuit chip includes a first optical switching section and a second optical switching section. The first optical switching section includes a plurality of first optical switching input ports, a plurality of first optical switching output ports, a plurality of second optical switching output ports, and a plurality of third optical switching output ports. An optical signal input from each first optical switching input port is selectively output from a corresponding one of the plurality of first optical switching output ports, a corresponding one of the plurality of second optical switching output ports, or a corresponding one of the plurality of third optical switching output ports. The second optical switching section includes a plurality of second optical switching input ports and a plurality of fourth optical switching output ports, each of the plurality of second optical switching input ports being connected to a corresponding one of the plurality of first optical switching output ports.

The invention discloses a Ku wave band transceiving SiP module which comprises a multilayer ceramic substrate, solder balls on the multilayer ceramic substrate, via holes penetrating through the multilayer ceramic substrate, keys and gold wires, the keys and the gold wires are arranged between the via holes and a transceiving chip, and the transceiving chip comprises four bidirectional amplifiers and a four-channel amplitude-phase multifunctional chip. The four bidirectional amplifiers are respectively connected with the four-channel amplitude-phase multifunctional chip and comprise a transmitting-receiving switch, a transmitting power amplifier of a transmitting channel, a receiving low-noise amplifier of a receiving channel and an amplitude limiter, and in a transmitting state, the four-channel amplitude-phase multifunctional chip controls the transmitting-receiving switch to work in the transmitting channel and controls the receiving low-noise amplifier of the receiving channel to work in the receiving channel; the transmitting power amplifier amplifies the radio frequency signal and outputs the amplified radio frequency signal; in a receiving state, the four-channel amplitude-phase multifunctional chip controls the transceiving switch to work in a receiving channel, the amplitude limiter limits the amplitude of the radio frequency signal, and the radio frequency signal is output after being amplified by the receiving low-noise amplifier. According to the invention, electromagnetic interference in the module can be reduced, and high efficiency, high reliability and high integration level of the module are realized.

The utility model relates to the field of communication, and discloses a CAN board card integrated with an IO-Link master station transceiver chip, which comprises an SoC chip and the IO-Link master station transceiver chip. The SoC chip comprises a CAN interface and an Ethernet interface, and the CAN interface is connected with CAN equipment to obtain CAN network data; the IO-Link master station transceiver chip comprises an IO-Link interface, and the IO-Link interface is connected with the IO-Link slave station equipment so as to acquire data of the IO-Link slave station equipment; and the SoC chip is used for transmitting CAN network data and IO-Link slave station equipment data to the industrial Ethernet through the Ethernet interface. According to the utility model, the IO-Link master station transceiver chip is integrated into the CAN board card, so that the CAN board card has the CAN gateway function and the IO-Link master station transceiver function at the same time, and the device cost is saved for the overall application environment.

The invention relates to the field of explosion-proof electrical technology, and discloses an intrinsically safe output Ethernet transmission circuit, which comprises an Ethernet physical layer transceiver chip U6, a network transformer U7, an electrostatic protection diode D17, an electrostatic protection diode D18, voltage stabilizing diodes D13-16, capacitors C46-62, resistors R42-45, resistors R59-65, thick film resistors R74-77, fuses F1-4, a safety Y capacitor CY1, an inductor L2, a gas discharge tube TV1, a gas discharge tube TV2 and an RJ45 connector RJ1. The intrinsically safe output Ethernet transmission circuit provided by the invention realizes 3000V voltage isolation, has the characteristics of low cost and easiness in implementation, not only has strong anti-interference and lightning surge protection capabilities and stable transmission performance, but also is easy to calculate and check intrinsically safe parameters through multi-stage isolation and current-limiting and voltage-limiting protection, and has a wide application prospect. And multiple key problems in intrinsic safety Ethernet transmission are effectively solved.

The embodiment of the utility model provides an amplitude limiting amplification circuit and a radio frequency transceiver chip, the amplitude limiting amplification circuit comprises one stage of amplification units or multiple stages of amplification units connected in series, and each stage of amplification unit at least comprises an amplification transistor; the detection unit is connected with the signal input end of the amplitude limiting amplification circuit and used for detecting the input signal received by the amplitude limiting amplification circuit and then outputting a detection signal, and the amplitude of the detection signal is in positive correlation with the power of the input signal; at least one stage of amplification unit is provided with an amplitude limiting unit, the signal input end is connected with the control end of the amplification unit and the signal input end of the amplitude limiting amplification circuit, and the control end is connected with the signal output end of the detection unit; the detection signal is used for controlling on and off of the amplitude limiting unit; at least one end of the diode protection unit is connected with the control end of the amplification transistor, the diode protection unit comprises a forward diode string and / or a backward diode string, and the diode string comprises a diode or a plurality of diodes connected in series.

A receiver of the chip includes an analog-to-digital converter and an electrical-optical digital signal processing module. The analog-to-digital converter can convert a serial analog signal sent by the optical module into a parallel digital signal. The electrical-optical digital signal processing module can perform optical algorithm and electrical algorithm equalization processing on the parallel digital signal, and send a processed parallel digital signal to a processing unit of the chip.

The invention discloses a reverse inquiry type multifunctional atmosphere lamp control circuit and method, and the circuit comprises a master controller and a slave controller, the master controller is used for receiving a control instruction of a vehicle and guiding the lightening and extinguishing states of an LED lamp, and the slave controller is used for directly driving the lightening and extinguishing of the LED lamp. The main controller is composed of a power supply voltage stabilizing module, a current sampling module, a first voltage micro-change module 1, a first voltage micro-change module 2 and a single-chip microcomputer module. The invention relates to the technical field of automotive electronics, and has the beneficial effects that the power line is used for transmitting signals, external wire harnesses of the controller and transceiver chips of a CAN bus or an LIN bus in the controller are saved, the cost is greatly saved, transceivers of the CAN bus or the LIN bus in the controller are reduced, and the size of the controller is reduced.

The invention discloses an error code testing device with small signal loss, which comprises a PCB (Printed Circuit Board), a first optical module socket, a second optical module socket and an error code testing module, and is characterized in that the first optical module socket is electrically connected with the second optical module socket through the PCB; the error code test module is connected with the first optical module socket through a golden finger, the first optical module socket is connected with an external upper computer, and an optical module to be tested is connected with the second optical module socket through a golden finger. The optical module to be tested, the first optical module socket, the PCB, the second optical module socket and the error code testing module are connected without coaxial cables, and the error code testing module comprises a transceiving chip capable of generating a pseudo-random code sequence and a control unit. According to the invention, the signal transmission loss can be reduced, the error code test accuracy can be improved, the manufacturing cost of an error code test instrument can be effectively reduced, and the carrying is convenient.

The invention discloses a Ka wave band four-channel transceiving SiP module based on silicon-based packaging and a manufacturing method thereof, the SiP module adopts a silicon-based packaging material and comprises an upper layer sub-packaging and a lower layer sub-packaging, and the upper layer sub-packaging and the lower layer sub-packaging are vertically interconnected through a ball grid array (BGA); the lower-layer sub-package comprises three layers of silicon adapter plates with a first thickness, a cavity for mounting a three-port transceiver chip is etched on the middle-layer silicon adapter plate, and a TSV with a first diameter is manufactured on each layer of silicon adapter plate; the upper layer sub-package comprises three layers of silicon adapter plates, the upper layer silicon adapter plate and the lower layer silicon adapter plate have a first thickness and are provided with TSVs with a first diameter, the middle layer silicon adapter plate is etched with a cavity used for mounting a silicon-based amplitude-phase multifunctional chip and a power supply modulation chip, the middle layer silicon adapter plate has a second thickness and is provided with TSVs with a second diameter, and the middle layer silicon adapter plate is etched with a cavity used for mounting a silicon-based amplitude-phase multifunctional chip and a power supply modulation chip. Wherein the second thickness is greater than the first thickness and the second diameter is greater than the first diameter. According to the invention, the requirements of miniaturization, integration and high performance of a radar system can be met.

The utility model relates to the field of communication equipment, and discloses a serial server integrated with an IO-Link master station, which comprises a master control chip and an IO-Link master station transceiving chip, the first end of the IO-Link master station transceiver chip is in corresponding communication connection with a plurality of IO-Link slave station devices so as to receive data of the IO-Link slave station devices; the second end of the IO-Link master station transceiver chip is connected with the first end of the master control chip; the second end of the main control chip is connected with one or more serial port devices so as to receive serial port data; and the main control chip is used for transmitting the serial port data and the IO-Link slave station equipment data to the industrial Ethernet. According to the invention, the IO-Link master station transceiver chip and the master control chip are integrated in the same serial port server, so that the serial port to network function and the data two-way transmission function between the IO-Link master station and the slave station are realized at the same time, and the device cost is saved for the overall application environment.

The utility model relates to the technical field of communication technology, in particular to a communication conversion device based on semiconductor equipment, which comprises a plastic shell, a PCB (printed circuit board) is correspondingly mounted and connected in the plastic shell, the PCB comprises two RS-232 communication circuits, and each RS-232 communication circuit comprises a burning interface, a microprocessor, a signal transceiving chip, a key, an input interface and an output interface. The beneficial effects are that the communication conversion device based on the semiconductor equipment provided by the utility model redesigns the communication conversion module used for constructing communication between the novel temperature controller and the machine after confirming the respective communication modes of the novel temperature controller and the machine, so that normal communication between the novel temperature controller and the machine can be realized. And meanwhile, the EMC circuit is added, so that external interference signals are protected to a certain extent, safety and stability of communication are ensured, normal communication can be carried out between the machine table and the temperature controller, and normal production operation of semiconductor equipment is realized.

The utility model belongs to the technical field of communication low-speed interface signal processing, and discloses a ZYNQ-based low-speed signal test measurement control device. The ZYNQ-based low-speed signal test measurement control device comprises a ZYNQ main control chip, an RS485 driver, a transmitter, a receiver, a CAN driver, an Ethernet PHY transceiver chip, a single-pole three-throw switch and a power interface. According to the utility model, the test, measurement, operation and configuration requirements of low-speed signals in a digital signal processing system are integrated and unified, the test and measurement requirements of various low-speed signals are met through special equipment, the test process is simplified, and the test efficiency is improved.

The utility model provides a CAN communication control circuit, communication equipment and a building control system. The CAN communication control circuit comprises a transceiver module which comprises a first CAN transceiver chip which is positively connected with a CAN communication bus and a second CAN transceiver chip which is reversely connected with the CAN communication bus; the switching module controls the first CAN transceiver chip or the second CAN transceiver chip to transmit and receive data through the CAN communication bus according to the control signal; and the control module is used for sending a corresponding control signal, preferentially selecting the first CAN transceiver chip to send data, reversing the to-be-sent data when the first CAN transceiver chip fails, then sending a corresponding control signal, and selecting the second CAN transceiver chip to send data. According to the utility model, polarity switching of CAN communication can be realized, and communication recovery after the CAN communication chip is damaged can be realized.

The utility model discloses a monitoring and positioning system for passenger violation electromagnetic signals in a civil aviation passenger plane, which consists of two electromagnetic signal receiving and detecting devices which have the same structure and are respectively arranged at the head part and the tail part in a civil aviation passenger cabin, each electromagnetic signal receiving and detecting device comprises a Zynq7020 chip, an ad9361 chip, a key input control circuit, an LCD (Liquid Crystal Display) and an audio broadcasting circuit; the Zynq7020 chip is electrically connected with the ad9361 chip, the key input control circuit, the LCD and the audio broadcasting circuit; expansion network ports of the two Zynq7020 chips are connected through a network cable, one radio frequency input port of the ad9361 chip is connected with an antenna, and the other radio frequency input port of the ad9361 chip is connected with a radio frequency output port of the other integrated RF transceiver chip. According to the utility model, in the take-off and landing process and the constant-height flight process of the airplane, the electromagnetic signals radiated by passengers in the civil aviation passenger cabin can be automatically monitored and positioned, and the passengers at the position are reminded to shut down the airplane in time.

The utility model provides a CAN wake-up circuit and a vehicle gauge level CAN communication system, the circuit comprises a charge and discharge control circuit, a photoelectric coupler and a switching circuit, the charge and discharge control circuit comprises a first resistor, a first triode and a first capacitor, and the switching circuit comprises a third resistor, a fifth resistor, a second capacitor and a second triode. The CAN wake-up circuit can diagnose whether an external CAN signal is normal or not, when a wake-up pulse signal is normally received, the first capacitor is charged at the high level of the pulse signal and discharged at the low level of the pulse signal, so that the photoelectric coupler is circularly turned on or turned off, the second capacitor is repeatedly charged and discharged at the moment until the second triode is turned on, and then a voltage signal is stably output; and when the CAN chip is abnormal or has no pulse signal, the photoelectric coupler does not work and does not output a voltage signal, so that the overall power consumption of the BMS is relatively low, and the CAN wake-up circuit can realize a BMS wake-up function without enabling the CAN transceiver chip to set a bus wake-up function.

The invention relates to the technical field of optical transceivers, and discloses a high-extinction-ratio coherent optical silicon optical transceiver chip and a transmitting method and a receiving method thereof. The transmitting end of the chip comprises a structure formed by cascading a modulator (102) and an optical switch (103); the receiving end comprises a simplified receiving structure consisting of a 2 * 2 coupler (104) and a single photoelectric detector (105); and all devices are integrated on a single silicon optical chip. According to the invention, the cascade architecture of the modulator and the optical switch is introduced at the transmitting end, so that the transmitting extinction ratio is remarkably improved, the direct-current leakage interference caused by the non-working ONU is effectively suppressed, and the signal-to-noise ratio and the receiving sensitivity of the system are improved. Meanwhile, the combination of the simplified receiving architecture and the silicon photon platform realizes the transceiving function with low power consumption, low cost and small volume, and can meet the requirements of a high-speed optical access scene.

Optical chip-to-chip interconnects may use microLEDs as light sources. The interconnected chips may be on a same substrate. A pair of endpoint chips may each have associated optical transceiver subsystems, with transceiver circuitry in transceiver chips. Optical communications may be provided between the optical transceiver subsystems, with the optical transceiver subsystems in communication with their associated endpoint chips by way of metal layers in the substrate.

An optical fiber array assembly, a signal receiving structure and an optical module. The optical fiber array assembly comprises an optical fiber array module (1) and a lens module (2) adapted to the optical fiber array module (1), wherein the optical fiber array module (1) comprises a base (11) and at least two optical fibers (14) arranged in an array on one side of the base (11), an end part of each optical fiber (14) is formed as a bevel (141), the lens module (2) is arranged on the other side of the base (11) and corresponds to the end parts of the optical fibers (14), optical signals transmitted by the optical fibers (14) are reflected into the base (11) via the bevels (141), the optical signals pass through the base (11) and then are emitted into the lens module (2), and the lens module (2) is used for converging the optical signals on a transceiver chip (4). On the one hand, a light spot of a smaller size can be obtained, such that not only high coupling efficiency is achieved, but also a position window of the optical fiber array module in which all of channels achieve high coupling efficiency is broader, thereby effectively reducing the process difficulty; on the other hand, the probability of a collision between the optical fiber array module and the transceiver chip is greatly reduced, thereby effectively improving the product yield.

Provided is a cascaded FMCW radar, and more particularly, to a cascaded FMCW radar with a synchronized PLL. The cascaded FMCW radar includes a crystal oscillator generating a reference frequency signal having low-frequency characteristics, a cascade-array transceiver chip generating an output signal having high-frequency characteristics using the reference frequency signal through a signal generator provided therein, and an antenna transmitting the generated output signal to the outside in the form of an electromagnetic wave or receiving the electromagnetic wave from the outside.

This invention discloses a bidirectional continuous-variable quantum key distribution method and system based on frequency division duplexing in a single-transceiver ring network. The method is based on a monolithically integrated silicon photonics transceiver chip. By pre-setting optical carrier frequency offsets for the forward and reverse links, it isolates the quantum signal from Rayleigh backscattering noise in the fiber in the frequency domain. The transmitting end generates a broadband waveform containing quantum signals and pilot signals, which is transmitted bidirectionally through a single optical fiber. The receiving end uses a laser source from the same chip as the local oscillator for coherent heterodyne detection. A digital signal processing module performs orthogonalization correction, phase recovery, and matched filtering to suppress noise and extract the quantum signal to generate a secure key. This invention solves the problems of inflexible networking, low fiber utilization, and severe scattering noise interference in bidirectional transmission over a single fiber caused by the separation of the transmitting and receiving ends in integrated continuous-variable quantum key distribution systems. It provides a low-cost and highly flexible solution for metropolitan quantum ring networks.

The utility model relates to a W-band low-cost TR assembly, and the assembly comprises a TR assembly structural body, two waveguide cover plates, and two radio frequency PCBs. The TR assembly structural body is of a square plate-shaped structure, and the upper surface and the lower surface of the square plate-shaped structure are provided with grooves of the same shape. The two radio frequency PCBs are arranged in the grooves in the upper surface and the lower surface of the TR assembly structural body respectively. The two radio frequency PCBs are buckled on the upper surface and the lower surface of the TR assembly structural body; the radio frequency PCB comprises a common end waveguide port, a packaging multifunctional chip, a plurality of branch end waveguide ports and a plurality of packaging transceiving chips; the branch end waveguide ports are connected with the packaging transceiving chips in a one-to-one correspondence manner; all the packaging transceiver chips are connected with the packaging multifunctional chip; the packaged multifunctional chip is connected with the common end waveguide port; the common end waveguide port and the branch end waveguide port are exposed out of the TR assembly structural body and used for being connected with external equipment.

The utility model relates to an encoder pulse signal output circuit, which is used for transmitting a pulse signal to a metering microprocessor of an oiling machine mainboard, and comprises an encoder chip, an interface switch, a switch chip, a CAN (Controller Area Network) transceiver chip and an RS232 (Recommend Standard 232) level conversion chip, the interface switch is electrically connected with the encoder chip, so that when the interface switch is in a high-level state, the first output end of the encoder chip outputs an address gating signal A, and when the interface switch is in a low-level state, the second output end of the encoder chip outputs an address gating signal B; the first output end of the encoder chip is electrically connected with the first input end of the switch chip, the second output end of the encoder chip is electrically connected with the second input end of the switch chip, and the third output end of the encoder chip is electrically connected with the third input end of the switch chip through the CAN transceiver chip. The fourth output end of the encoder chip is electrically connected with the fourth input end of the switch chip through the RS232 level conversion chip.

The utility model discloses a direct insertion type radar sensor, which comprises a dielectric substrate, a transceiver chip, a bridge, a set square antenna, a feed port and a plurality of golden finger pins, a plugboard is arranged on one side of the dielectric substrate, the transceiver chip is arranged on the dielectric substrate, the bridge is arranged on the dielectric substrate and is electrically connected with the transceiver chip, and the feed port is arranged on the plugboard. The triangular plate antenna is installed in the dielectric substrate, a feed point is arranged on the triangular plate antenna, the feed port is arranged on the dielectric substrate and electrically connected with the transceiving chip and the feed point, and the plurality of golden finger pins are arranged on the upper surface and the lower surface of the plugboard and electrically connected with the transceiving chip. The triangular antenna is adopted as a signal transmitting and receiving antenna, and due to the structural characteristics of the triangular antenna, the direct-insertion type radar sensor is integrally of a long and thin structure and can easily extend out of a small hole formed in an applied illuminating lamp panel, so that the use performance is not influenced, and meanwhile, light rays of lamp beads on the lamp panel can be prevented from being shielded.

The embodiment of the invention discloses a WiFi data transmission method, a WiFi single transceiver chip, a storage medium and wireless network equipment, and belongs to the field of wireless communication. According to the invention, the idle state of the channel is monitored, and the original and extended beacon frames containing different SSID information and MAC addresses are sent in sequence. The method comprises the following steps: establishing an STA information table, and recording detailed information for connecting STA and an AP index identifier; when data are sent, a CCA detection channel is executed, a serial number and an AP index are matched in an STA information table according to a receiver address, a state indication signal level is determined, whether an MAC address in a sending frame is replaced or not is determined, and the data are sent after an FCS is calculated. When a frame is received, judging whether the MAC address of a receiver is in an address register or not, and performing FCS verification, decryption and storage processing on the accordant frame; the MAC address of the expanded AP, which is data or a management frame, is verified, decrypted and stored after being replaced, and the MAC address of the expanded AP, which is a control frame, is subjected to corresponding control operation, so that the function of simulating double APs by the WiFi single transceiver chip is realized, and the hardware cost is reduced.