249 results about "Transceiver chip" patented technology

The invention relates to the technical field of industrial control systems, and discloses a multi-axis multi-slave-station industrial control system, which comprises an upper computer; the master station is communicated with the upper computer through an Ethernet transmission control protocol; a plurality of extended slave stations, each of which is independently connected to the master station and communicates with the master station by using a CANFD communication protocol; wherein the master station and the extension slave station respectively comprise a multi-axis driving unit, and at least the master station comprises an IO control unit, so that the extension slave station can be in communication connection with the master station only through a CANFD transceiver chip. According to the invention, the master station communicates with the upper computer through an Ethernet transmission control protocol, the master station communicates with the slave station through a CANFD protocol, the slave station only needs a single CANFD transceiver chip, and both the master station and the slave station comprise a multi-axis driving unit, so that efficient communication with low cost is realized.

The invention discloses a high-reliability RS485 bus interface control system, a computing chip and an industrial computer, and relates to the technical field of computers.The system comprises the steps that when data sending is started, a receiving enable signal is set to be at a low level, RS485 receiving is closed, then an RS485 sending enable signal is set to be at a high level, and next-level equipment is set to wait for data sending; then the sending enable signal is set to be at a high level and sent to the UART sending module, and at the moment, the UART sending module can start to send data; after data transmission is completed, a transmission enable signal is placed at a low level, a transmission state is closed, an RS485 transmission enable signal is placed at a low level, a receiving enable signal is placed at a high level, RS485 receiving is started, and at the moment, a UART receiving module can start to receive data. According to the system, the enable signal is automatically set, so that the interference signal is prevented from being mistakenly received or packet loss at the sending end caused by the fluctuation of a magnetic field or a power supply in a transceiver chip can be avoided, and the reliability of an RS485 bus interface is improved.

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 invention, which relates to the technical field of the optical receiver, discloses a silicon optical transceiver chip comprising an oblique incidence grating coupler, a symmetrical bidirectional angle multimode interference coupler, a micro-ring modulator, a micro-ring filter, and a single-input photoelectric detector. Each oblique incidence grating coupler is composed of a grating area and a spot-size converter, a certain coupling inclination angle is adopted by a grating etching part through an optical fiber, optical signals are obliquely incident into a grating coupling area, the optical signals are converted into single-mode conditions through the spot-size converters and transmitted into an optical waveguide, and then the input and output functions of the optical signals are achieved. According to the invention, a plurality of micro-ring modulators are used for converting electric signals into optical signals for information transmission, and a receiving part is combined with a micro-ring filter to realize a secondary filtering function, so that the crosstalk problem between two adjacent optical information transmission channels can be reduced.

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.

The device comprises: a signal transmission link, wherein the signal transmission link comprises a radio frequency front-end chip and a radio frequency transceiver chip which are connected in series, the radio frequency front-end chip is used for converting a received wireless signal into an analog electrical signal, and amplifying and filtering the analog electrical signal, and the radio frequency transceiver chip is used for converting the analog electrical signal into a digital electrical signal; at least two detection chips respectively connected to the signal transmission link, wherein the detection chips are used for detecting a signal parameter in the series link; and a gain controller connected between an output end of the detection chip and the radio frequency front-end chip, wherein the gain controller is used for adjusting a gain coefficient of the radio frequency front-end chip according to the signal parameter.

The invention provides an active antenna unit structure applied to a base station. Comprising an upper casing assembly, a lower casing assembly, and a transceiver board and an antenna assembly which are packaged between the upper casing assembly and the lower casing assembly. The upper casing assembly and the lower casing assembly are provided with heat dissipation teeth located in the packaging outer environment, the transceiving board is integrated with at least one of a transceiving chip, a power supply, a filter and a power amplifier, and at least one of the transceiving chip, the power supply, the filter and the power amplifier is in contact with the lower casing assembly and / or the upper casing assembly through a heat conduction material. Heat dissipation is carried out through the heat dissipation teeth of the lower machine shell assembly and / or the upper machine shell assembly. Compared with an active antenna unit of a traditional framework, the active antenna unit structure can reduce the influence of a thermal cascade effect on heat dissipation of a whole machine, heat of components such as a transceiver chip, a power supply, a filter and a power amplifier is conducted to the external environment more efficiently, and the whole machine is lighter under the same heat dissipation capacity.

The invention discloses a multichannel comprehensive radio frequency microsystem supporting fast frequency hopping, a multichannel receiving module, a transmitting module, a fast frequency hopping source, a processor SOC and an external interface IO are integrated in the multichannel comprehensive radio frequency microsystem, and the multichannel receiving module comprises an amplitude limiter, a power divider, a first balun 1, a second balun 2, a third balun 3, a fourth balun 4, a first transceiver chip 1 and a second transceiver chip 2. The transmitting module comprises a third transceiver chip 3, a fifth balun 5, a low noise amplifier and a first filter 1. The invention has the advantages of miniaturization, generalization, reconfiguration and the like, and can be widely applied to the field of wireless communication.

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 belongs to the field of interphones, and provides a mobile phone auxiliary type intelligent interphone and an implementation method thereof, and the mobile phone auxiliary type intelligent interphone comprises a mobile phone end assembly which comprises a central processing unit, an audio processing chip, a first connection module, a loudspeaker and a microphone; the interphone end assembly comprises a main control chip, a wireless communication module, a second connection module and a power management module; a radio frequency transceiver chip is arranged in the wireless communication module, data transmission is carried out between the second connection module and the first connection module, and the audio processing chip adopts a CNN noise reduction model to process digital audio signals; according to the method, the digital audio signals are processed through the CNN noise reduction model, various complex background noises can be accurately identified and removed, clear voice signals can be restored, the voice definition and intelligibility are greatly improved, it is ensured that both communication parties can accurately transmit information in a noisy environment, and the user experience is improved. The problem of poor voice quality caused by noise interference in a traditional matching mode is effectively solved.

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 provides a radio frequency system, a supervision method and related products, the radio frequency system comprises a radio frequency transmit-receive module, a radio frequency front end circuit and a supervision module, the radio frequency front end circuit is electrically connected with the radio frequency transmit-receive module, and the radio frequency transmit-receive module is used for transmitting and receiving wireless signals through the radio frequency front end circuit; the supervision module is in coupling connection with the radio frequency front-end circuit, the supervision module is configured to monitor a first network signal from network side equipment, and determine that at least one of the radio frequency front-end circuit and the radio frequency receiving and transmitting module is in a sleep mode or an awakening mode according to characteristic parameters of the first network signal; in the wake-up mode, a signal receiving channel of the radio frequency front-end circuit is in a closed state, and in the wake-up mode, a signal transmitting channel and the signal receiving channel of the radio frequency front-end circuit are in a working state; a radio frequency transceiver chip is not needed, the processor keeps a certain power consumption state to monitor the sleep mode or the wake-up mode, and power consumption is reduced.

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 embodiment of the invention provides a satellite communication system, and the system comprises a dual-polarized antenna layer which comprises M * N dual-polarized antenna units. An electrically tunable dual-polarization tracking layer, wherein the electrically tunable dual-polarization tracking layer comprises M * N electrically tunable dual-polarization transceiver modules; and an amplitude modulation and phase modulation beam scanning layer, wherein the amplitude modulation and phase modulation beam scanning layer comprises M * N transceiver chips. The antenna comprises a dual-polarized antenna layer, an electrically-tunable dual-polarized tracking layer and an amplitude-modulation and phase-modulation wave beam scanning layer which are connected in sequence, a dual-polarized electromagnetic wave signal is received and transmitted through the dual-polarized antenna layer, and a horizontally-polarized satellite signal and a vertically-horizontally-polarized satellite signal are received and transmitted through an electrically-tunable dual-polarized transceiver module. The amplitude and phase modulation beam scanning layer adjusts the amplitude and phase of the horizontal polarization satellite signal and the vertical polarization satellite signal, thereby improving the satellite communication efficiency.

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 invention belongs to the technical field of integrated circuit testing, and particularly relates to an Ethernet PHY transceiver chip MII port data testing method. Comprising the following steps: S1, electrifying an Ethernet PHY transceiver chip, configuring an MII mode and a data rate, and sending an Ethernet data packet through TXD [7: 0]; s2, ATE double-edge acquisition of RXDV and RXD [7: 0] is carried out; s3, the RXDV is processed, and the data length is obtained, wherein the data length is data; s4, processing the RXD bus data bit by bit to obtain an array RXDdata; and S5, extracting four arrays from the RXDdata array, and converting the four arrays into a two-bit hexadecimal number. According to the invention, the problem that the data received by the Ethernet PHY chip in various MII modes is difficult to test on an integrated circuit test system is solved.

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.