93results about How to "Realize anti-jamming" patented technology

The invention provides a digital beam forming and phase fitting method, and aims to provide a method capable of suppressing interference, improving the signal to interference and noise ratio and accurately controlling the phase of a beam forming signal. The method is implemented according to the technical scheme that a steering vector model obtains relative steering vectors by using online calibration, accurate absolute steering vectors are acquired by combining absolute phase responses, which are measured in a darkroom, of a reference array element, model parameters of the steering vector are fitted out by combining the existing absolute steering vectors, and an accurate spare steering vector of an antenna array in any direction is acquired; the second-order statistic of the array signal is iteratively calculated through an array signal statistic hardware calculation module, and sent to an array signal processing algorithm module together with an antenna array steering vector and a channel response to calculate an optimal beam weight; and finally, the array signal processing algorithm module imbeds the optimal beam weight into the digital beam forming module to perform real-time digital beam forming and phase fitting and process multi-channel array data and beam output in real time.

The invention discloses a dynamic spectrum anti-jamming model in a fading environment and an enhanced learning anti-jamming algorithm. The model comprises a transmitter, a receiver and a jammer duringthe dynamic spectrum anti-jamming process of a wireless communication system, wherein the jammer generates jamming signals to jam user communication; the transmitter and the receiver transmit data frames through a data link, and the control information is transmitted through a control link; and the receiver acquires the channel information through data communication and broadband spectrum sensing, and the enhanced learning algorithm is executed for optimizing a channel selection strategy. The algorithm is as follows: a user transmits data on a data channel and obtains the current channel transmission rate, and the return value of the current working channel is calculated; the jamming channel at the current time is obtained through spectrum sensing; a new transmission channel is decided through enhanced learning, a Q value table is updated, and due to such cycle, the state of the optimal strategy can be obtained. The dynamic spectrum anti-jamming problem in the fading environment can be solved, and the throughput of the system is improved.

The invention discloses a general binary migration carrier modulation method of a satellite navigation system signal, which comprises the steps of changing the time occupied by a traditional modulation waveform chip binary value (plus 1 or minus 1) by utilizing a variable parameter Rho based on binary offset carrier modulation so as to realize the flexible modulation of the splitting degree of the existing binary offset carrier modulation mainlobe and the existing binary offset carrier modulation sidelobe and simultaneously realize the code tracking performance, the anti-interference performance, the anti-multipath performance and the compatibility of the signal.

The invention relates to a distribution automation joint debugging platform for FTU terminal equipment. The distribution automation joint debugging platform for the FTU terminal equipment is characterized in that voltage and current output of an experimental device is spliced in the input end of a terminal strip; an FTU terminal is connected with the opposite end of the terminal strip through a special connecting wire; a remote control test board on a tester is connected with the input end of the terminal strip which is located in the same side of the voltage and current output; the FTU terminal equipment is provided with a network cable and a special connecting wire, the network cable led from the FTU terminal is in communication connection with a special debugging channel in a distribution automation host station system, and the test port in the FTU terminal is spliced in the end opposite to the end of the remote control test board connected with the terminal strip through a special connecting wire. The distribution automation joint debugging platform for the FTU terminal equipment plays roles of automatically locating a fault, automatically isolating a fault section, automatically restoring power supply for non-fault sections, automatically restoring a power supply mode before supplying power and the like, achieves topology analysis, load transfer, load forecasting, network reconstruction and other advanced applications, has real-time performance, authenticity and reliability and needs to precisely test and jointly debug each FTU terminal.

The invention relates to a high frequency radar anti-radio frequency interference method, which detects the interference signal on the radar collected far distance element accumulating Doppler spectrum by the setting signal-to-noise ratio gate and adopts different scan frequency impulse phase modulating modes to reduce the bad effect of the detecting result by the radio frequency interference distribution received by the high frequency radar.

The invention discloses a device and a method for preventing interference of same-frequency channels. The device comprises a first wireless transmitter, a second wireless transmitter, a first wireless receiver, a second wireless receiver, a microcontroller, an antenna and a storer, the microcontroller is connected with other parts respectively, the first wireless transmitter and the first wireless receiver work at a frequency band same as that of the second wireless transmitter and the second wireless receiver, the first wireless transmitter, the first wireless receiver, the second wireless transmitter and the second wireless receiver transmit wireless data through the connected antenna respectively, and the microcontroller controls working state of each of the transmitters and the receivers. By the device and the method, the problem of channel interference in same wireless routing equipment working in different wireless application and same frequency in the prior art is solved.

The invention relates to an improved binary-coded character modulation method of satellite navigation system signals, belonging to the technical field of satellite navigation. On the basis of binary-coded characters, the traditional spread spectrum character is split into K units; each unit uses the character pulse waveform based on MSK (minimum shift keying) instead of the binary value waveform; and proper parameters are selected, thereby having the advantages of interference rejection, multipath resistance and compatibility of the binary-coded character, realizing the constant enveloping of MSK modulation, enhancing the efficiency of the power amplifier, realizing large side lobe attenuation and the like. The invention uses the improved binary-coded character modulation to enhance the code tracking performance, multipath resistance, interference rejection and compatibility with other navigation signals, thereby realizing constant enveloping of signals and avoiding the occurrence of large-amplitude side lobes.

The present invention discloses a distribution automation cabinet including a cabinet body and a plurality of drawer type cabinets. The cabinet body movably connects with the drawer type cabinets, and the drawer type cabinets are arranged in the cabinet body. The distribution automation cabinet is provided with a plurality of functional modules, and the functional modules are assembled in the distribution automation cabinet in a drawer manner for forming drawer unit modules. Compared with the prior art, the distribution automation cabinet provided by the present invention can be used as a standardized product for production, and various functional module equipment in the distribution automation cabinet can also be used as standardized products for production so as to match with any one ring network cabinet group provided by the prior art or available in the market. And the distribution automation cabinet significantly solves a security problem of outdoor opening and closing existed in the prior art, simultaneously, enhances supply electricity continuity of an outdoor opening and closing place, facilitates the development and management of smart power grids of our country, and therefore, the distribution automation cabinet has a wide application prospect.

The invention relates to a simple anti-interference coding method for single-chip microcomputer short-distance wireless communication, and is particularly suitable for occasions with low functional requirements for communication equipment. A start bit of a data frame is represented by a square wave having the same high level duration and low level duration on a sending terminal; a data bit '1' is represented by a square wave having a short high level duration and a long low level duration; a data bit '0' is represented by a square wave having a long high level duration and a short low level duration; a fixed sampling time is set on a receiving terminal to sample the received data waveform; and finally the data bits are discriminated according to the number of the sampled high levels and the sampled low levels. The method achieves the anti-interference purpose of the single-chip microcomputer short-distance wireless communication by a simple data coding method, greatly reduces the probability of wrong data discrimination caused by ingression of interference signals during the data transmission; a small memory space is occupied after programming, and a great memory space is saved for the single-chip microcomputer.

The invention belongs to the field of signal processing, and discloses a large dimension reduction four-channel mainlobe sidelobe interference-resisting method. The method comprises steps: according to data received by all subarrays, a sum beam, a pitch difference beam, an azimuth difference beam, a dual-difference beam and multiple sidelobe interference beams after dimension reduction are formed respectively; interference-resisting weights of the pitches and beams are obtained, and interference-resisting weights of the azimuths and the beams are obtained; according to the dual-difference beam, the pitch difference beam and the azimuth difference beam, an auto-covariance matrix for the dual-difference beam, a cross-covariance matrix for the dual-difference beam and the pitch difference beam and the cross-covariance matrix for the dual-difference beam and the azimuth difference beam are obtained; and the interference-resisting weight of the azimuth difference beam and the interference-resisting weight of the pitch difference beam are solved; and the azimuths, the beams and the azimuth difference beam after interference resistance along the pitch direction are acquired, and the pitches, the beams and the pitch difference beam after interference resistance along the pitch direction are acquired; and sum difference angle measurement is adopted to obtain the target direction.

The invention discloses a high-power IGBT (Insulated Gate Bipolar Transistor) temperature acquisition protection circuit which comprises an IGBT temperature acquisition circuit and an IGBT double one-way hysteresis loop temperature protection circuit, wherein the IGBT temperature acquisition circuit is used for acquiring a temperature of an IGBT element; the IGBT double one-way hysteresis loop temperature protection circuit is used for receiving a signal output by the IGBT temperature acquisition circuit and processing the signal; the IGBT temperature acquisition circuit comprises a temperature acquisition element for acquiring the temperature of an IGBT element; the temperature acquisition element transmits acquired temperature data to a filtering circuit for filtering anti-interference, the filtering circuit transmits the processed data to a differential negative feedback circuit to carry out isolated output and a temperature voltage signal is output; the IGBT double one-way hysteresis loop temperature protection circuit comprises a one-way hysteresis loop low temperature protection circuit and a high temperature one-way protection circuit which are mutually connected in parallel; and the one-way hysteresis loop low temperature protection circuit and the high temperature one-way protection circuit are used for receiving the temperature voltage signal output by the IGBT temperature acquisition circuit by respective operational amplifiers and carrying out processing on the temperature voltage signal. According to the invention, the IGBT temperature is detected in real time; protection measures can be timely taken; and working reliability of equipment is improved.

The invention relates an optical current transformer and a method for resisting external magnetic field interference, and aims to solve the problems of limited shielding effects, complex structure, complexity in insulation, large size and great weight of the conventional optical current transformer. The optical current transformer comprises m through light path type optical current sensors. The length of magneto-optic glass of each optical current sensor along an incidence direction is 1. The optical current sensors are fixedly arranged on an insulating tray to form a zero-sum magnetic resistance structure S<m>. The optical current transformer comprises the m optical current sensors in a series-connected topological relationship, and the optical current sensors form the zero-sum magnetic resistance structure S<m>. The method for resisting the external magnetic field interference by using the optical current transformer comprises the following steps that a tested bus penetrates through the central position of the optical current transformer, interference current igr is positioned on a point P outside the plane loop of the S<m>, and the m optical current sensors are arranged according to the zero-sum magnetic resistance structure S<m>. The optical current transformer and the method for resisting the external magnetic field interference are applied to the field of current transformers of power systems.

The invention discloses a building communication cabinet automatic control device which comprises a cabinet. The cabinet is internally and fixedly provided with an intelligent controller, a power distribution box, a switch, a wire arrangement frame, a distribution frame, a fibre distribution frame, a PDU, an optical transceiver, an access controller and a UPS and matching power source thereof from the top down in sequence by means of trays. The power distribution box is electrically connected with the intelligent controller through a current and voltage detector. The cabinet is further internally provided with a temperature detector, a humidity detector, a smog detector, a water logging detector and an alarm, which, together with the access controller, are electrically connected with the intelligent controller. The intelligent controller is connected with a remote monitoring system terminal through a network. The cabinet of the device is in standard design; port and device installation are increased and added as needed; sufficient redundancy design is realized; different devices are in subarea arrangement in structure; the distribution frame and the wire arrangement frame are made full use of; and therefore, anti-interference between wires is realized, the cabinet realizes UPS integrated self-powering; and the cabinets in the network are interconnected through the intelligent controller, and intelligent centralized management is realized.

The invention discloses a writing posture monitoring system and method based on an acceleration sensor. Through the acceleration sensor installed on the back surface of clothes, back posture changes of a user can be sensed. Additionally, different breathing smoothness degrees of the user kept in an accurate sitting posture and in an inaccurate sitting posture can also be sensed. Through a display,trained sitting postures are displayed to the user. According to digital voltage signals collected by a gravitational acceleration sensor, a pre-saved detection model including a standard sitting posture, a humpback sitting posture, a higher left-shoulder sitting posture and a higher right-shoulder sitting posture is initially corrected. Features related to user breathing are subjected to clusteranalysis. During monitoring, collected digital voltage signals of acceleration sensor modules are inputted into two detection models in order to obtain sitting posture types. Through the accelerationsensor modules installed on a pen, posture changes of a hand can be sensed and posture changes of an arm can be calculated. A sound alarm is given in the case of a wrong sitting posture.

The invention discloses a power distribution automation cabinet. The power distribution automation cabinet is composed of a cabinet body and a plurality of unit modules. Each unit module is movably connected with the cabinet body in a pulling-out manner and can be internally arranged in the cabinet body. Each unit module is provided with a plurality of secondary elements with different functions. The power distribution automation cabinet comprises a first power distribution cabinet and a second power distribution cabinet. The first power distribution cabinet is composed of a plurality of single-loop control protection unit modules. The second power distribution cabinet comprises a wiring terminal module, a DTU protection integration unit module, an ONU communication integration unit module and a power supply unit module. The first power distribution cabinet and the power distribution cabinet are electrically connected through the wiring terminal module. Compared with the prior art, the power distribution automation cabinet can be produced as a standard product, all function module equipment of the power distribution automation cabinet can also be produced and designed as standard products, and the power distribution automation cabinet can be matched with any kind of ring network cabinet group for usage; in addition, the safety problems of an outdoor switching station are solved, and the power supply continuity of the outdoor switching station is simultaneously improved.

Disclosed is an anti-interference method and system for an on-board millimeter-wave radar. The anti-interference method includes the steps that 1), during driving of a vehicle, a master transmitter of the on-board millimeter-wave radar transmits millimeter waves according to a certain period, and wavelength of the millimeter waves is controlled by a wavelength controller; 2), a receiver of the millimeter-wave radar receives the millimeter waves reflected by obstacles ahead, and wavelength analysis of the millimeter waves is performed through a wavelength analyzer of the millimeter waves; 3), a threshold value b of wavelength variable range is set, and if the wavelength variable range b' of transmitted wavelength y and received wavelength y' is smaller than that of the threshold value b, the current radar system is determined to be interfered by surrounding environment or maliciously and artificially attached.

The invention discloses a parameter agile coding method and system with variable or constant code length based on polarization code. The parameter agile coding method with constant code length comprises the following steps: acquiring the polarization code length to be generated; selecting a preset configuration file according to the polarization code length; acquiring the number of user information bits; generating an information bit channel interface serial number set and a fixed bit channel interface serial number set; generating a first set according to the information bit channel interfaceserial number and the fixed bit channel interface serial number; rearranging elements in the first set to obtain a second set; generating a user information bit sequence number set and a system checkbit sequence number set; acquiring a user information bit sequence; generating an information bit and a system check bit by an exclusive OR operation module; finally, generating the encoded polarization code. The method and the system of the invention can realize on-line agility of the encoding and decoding parameters only by reading the configuration file by using a set of encoders and decoders,and have the advantages of being simple, easy to realize, and fast and flexible.

The invention belongs to the field of radar signal processing, and discloses a sum-difference tracking angle measurement method based on a Nested array. The method comprises the steps: obtaining the echo data of the Nested array, carrying out the vectorization of a covariance matrix of the echo data, and forming single-snapshot receiving data; removing the redundancy of the single-snapshot receiving data, and obtaining the single-snapshot receiving data of a virtual array; carrying out the reconstruction of data; enabling the reconstruction data to serve as the covariance matrix of the echo data of the virtual array when the data contains interference data, and calculating a sum wave beam weight value and a different wave beam weight value after interference resistance; carrying out the data interpolation of the echo data of the Nested array, and forming the echo data of the virtual array; obtaining a sum wave beam and a difference wave beam after interference resistance, and carrying out the sum-different tracking angle measurement; enabling the reconstruction data to serve as the multi-snapshot receiving data of the virtual array when the interference data is not contained, obtaining the sum wave beam and the difference wave beam, and carrying out the sum-different tracking angle measurement according to the sum wave form and the difference wave beam, thereby achieving the accurate sum-difference tracking.

An LVDS low swing difference signal bus digital intermediate frequency transmission method is provided. A front end intermediate frequency sampling processing unit consists of an AD chip, a DSP and a FPGA control chip group. The base-band processing is inside the FPGA. An LVDS difference transmission control unit consists of an LVDS driving chip and an FPGA control chip group. The data bidirectional transmission is realized through a controller consisting of the FPGA and the LVDS driving chips. The LVDS difference transmission control unit also comprises a signal processing board and a channel board. A parallel-serial transform sending module and a serial- parallel transform receiving module are arranged. The signal processing board and the channel board are connected through a balance transformation difference cable. When the information is received, the digital signals sampled from the analog intermediate frequency signals through a high-speed A / D are processed and then are exportedinto an FPGA buffer memory through an external bus. The data encoding framing, decoding frame and transforming control are accomplished in FPGA. The data are then exported to a signal processing board through an LVDS controller interface after going through the difference balance.

The invention discloses a roadside device RSU, comprising a host and radio frequency units, wherein host is configured to acquire configuration information about short-range communication of the system, configure each radio frequency unit according to a configuration message, respectively configure different channels and frequencies for the the radio frequency units, and maintain communication links with the the radio frequency units; and the the radio frequency units are configured to broadcast system information and communicate with an OBU by using the configured channels and frequencies. The roadside device RSU disclosed by the invention solves the problems of single RSU channel, low communication efficiency and poor communication security reliability in the prior art. The invention also discloses a system configuration method of the roadside device RSU.

The invention provides an EoC load balancing method and system and EoC local side equipment. The EoC load balancing method is applied to an EoC communication system comprising an EoC local side deviceand an EoC terminal device. The EoC load balancing method comprises the steps that the EoC local side device comprises at least two local side CLT modules; The local side CLT modules work in different frequency bands respectively and transmit and receive synchronously; Wherein the EoC terminal equipment can work in a frequency band corresponding to any local side CLT module in the EoC local sideequipment which correspondingly communicates with the EoC terminal equipment; And the EoC local side equipment coordinates the EoC terminal equipment carried by each local side CLT module according toa load balancing principle. According to the invention, the load balancing problem of the EoC local side equipment is solved, the interference resistance of the EoC terminal equipment is realized, and the communication quality of an EoC communication system is greatly improved.

The invention discloses a distribution automation cabinet. The distribution automation cabinet comprises a cabinet body and a plurality of drawer type cabinets, the cabinet body is movably connected with the drawer type cabinets, the drawer type cabinets are positioned in the cabinet body, the distribution automation cabinet is provided with a plurality of function modules, and the function modules are assembled in the distribution automation cabinet in a drawer manner to form drawer unit modules. Compared with the prior art, according to the distribution automation cabinet, the distribution automation cabinet can be produced as standardized products, and the function module devices in the distribution automation cabinet can be produced and designed as standardized products so that the distribution automation cabinet can be employed with the cooperation of any ring main unit provided in the prior art or sold in the market; the problem of the security of the outdoor switching station in the prior art is substantially solved; besides, the power supply continuity of the outdoor switching station can be improved, the development and management of the national smart grid can be facilitated, and the application prospect is very wide.

The invention discloses an invisible fish blocking system based on the Internet of Things, and relates to the technical field of networked equipment used in water area aquaculture. Its main controller is connected to multiple node controllers respectively through the bus, the main controller is connected to the router through wireless transmission, the router communicates with the coordinator through wireless transmission, the coordinator communicates with the PC serial port, and the main controller is connected with an alarm module , the main controller is also connected with an electric control switch group, the node controller is connected with a temperature sensor, the temperature sensor is connected with the electronic switch module, the electronic switch module is connected with the node controller, and the electronic switch module is connected with the controlled boost module. The controlled boost module is connected to the energy storage module, the controlled boost module is connected to the node controller, and the output port is connected to the underwater electrode. The beneficial effects of the invention are: it realizes real-time control of fish blocking in remote waters through wireless transmission, greatly reduces the cost of blocking fish, and can realize unified monitoring of large-scale adaptive waters blocking fish.

The invention discloses a distribution automation cabinet, which comprises a cabinet body and a plurality of unit modules, wherein each unit module is movably connected to the cabinet body in a drawing-out mode and can be arranged in the cabinet body, and each unit module is provided with a plurality of secondary elements with different functions; the distribution automation cabinet comprises a first power distribution cabinet and a second power distribution cabinet, the first power distribution cabinet is formed by a plurality of single-loop control protection unit modules, and the second power distribution cabinet comprises a wiring terminal module, a DTU protection comprehensive unit module, an ONU communication comprehensive unit module and a power supply unit module, wherein the firstpower distribution cabinet and the second power distribution cabinet are electrically connected through the wiring terminal module. Compared with the prior art, the distribution automation cabinet provided by the invention can be used as a standard product for production, each functional module device of the distribution automation cabinet can also be used as a standardized product for productiondesign, and the distribution automation cabinet can be matched with any ring network cabinet group for use; the safety problem existing in outdoor opening and closing is solved, and the power supplycontinuity of outdoor opening and closing is improved.

The invention relates to a wireless temperature sensing device, which comprises a wireless temperature sensor and a wireless temperature signal collector, wherein said wireless temperature sensor is formed by power source, temperature sensing element, control circuit, and radio receiving / sending circuit; the temperature sensing element is connected to the analogue signal input of control circuit; the control circuit via SPI bus is connected to the radio receiving / sending circuit; the wireless temperature signal collector is formed by power source, stabilizing circuit, control circuit, radio receiving / sending circuit and memory; the control circuit via SPI bus reads and writes the radio receiving / sending circuit and memory; the wireless temperature sensing device operates via preset manage control software, uses TDMA boost frequency expansion and frequency boost mode; and it will sleep after sending one information, to be set as the intermission working mode whose occupy ratio is above 1000. Therefore, the invention has low cost, high reliability and online property.

The invention belongs to the technical field of electrochemical energy storage power station safety monitoring, and particularly relates to an electrochemical energy storage power station safety earlywarning and fault positioning system based on a molecular probe. The system comprises a molecular probe label, a camera and a host. According to the invention, real-time safety early warning of faults of the electrochemical energy storage device is realized through color change of a gas sensing area of the molecular probe label; and the abnormal electrochemical energy storage device is positionedthrough the position marking area of the molecular probe label or the position of the camera on the sliding rail when the camera is directly faces the molecular probe label, so that the operation andmaintenance personnel of the energy storage power station can obtain an early warning signal at the first time and take corresponding safety measures in a targeted manner. The molecular probe technology has the advantages of being free of driving, high in sensitivity, low in cost, resistant to interference and the like, and has important application value for operation safety of a large-scale energy storage power station.

The invention discloses an escalator speed and fault detection method and device based on a rotary encoder and relates to the field of escalator speed measurement and reversal detection. The method comprises the following steps that 1), the state of the rotary encoder is monitored at startup to determine whether an escalator is running or not, and if yes, the self-learning is started, and the second step is executed; and if not, the process ends; 2), an A-phase signal and a B-phase signal of the rotary encoder are acquired, and statistic of the pulses of the rotary encoder is performed; and 3), whether the escalator reversal exists or not is judged according to the acquired signal, and if yes, the escalator is stopped; and if not, the escalator speed is calculated by the adoption of an interrupting mode according to the pulses. The device comprises an acquisition circuit, a filter circuit and a single chip microcontroller. The acquisition circuit comprises a rotary encoder signal acquisition unit, an amplifying unit and a strong and weak electricity conversion unit. The escalator speed and fault detection method and device solve the problem that the rotation direction is measured by the adoption of a rotary encoder, and difficult capturing is caused by the microsecond class time in the prior art, capturing of the microsecond-class A-phase signal and the microsecond-class B-phase signal is achieved, and therefore the effect of measuring the rotation direction is achieved.

The invention belongs to the field of rail transit automation, and particularly relates to a method and system applicable to track circuit fault inspection. The method for track circuit fault inspection comprises the steps of providing power signals of different frequencies for adjacent two sets of track circuit sections, transmitting the power signals through the track circuit sections to generate track circuit section signals, receiving the track circuit section signals and performing judgment and processing of the track circuit section signals. The judgment and processing comprise inspection of frequencies and amplitudes of the received track circuit section signals, and the inspection result can be used for judging a track circuit fault condition. The method for track circuit fault inspection can overcome the deficiencies of insulation damage protection of a 25 Hz phase sensitive track circuit, thereby comprehensively achieving the function of insulation damage protection and further improving the train running safety. The method has a feedback inspection function, thereby enhancing the maintainability of the system, and facilitating early finding of troubles and fault location.

The invention discloses an anti-interference method, device and equipment and a readable storage medium. The method comprises the following steps: determining a minimum value and a maximum value in a first working frequency value range of a radio frequency module; calculating a first ratio of the minimum value to the to-be-measured frequency value and a second ratio of the maximum value to the to-be-measured frequency value; wherein the to-be-measured frequency value is the working frequency value of the interference source; and if the difference value between the first ratio and the second ratio meets the preset condition, determining that the to-be-measured frequency value does not interfere with the radio frequency module, and controlling the interference source to work at the to-be-measured frequency value. No matter how the working frequency of the radio frequency module changes, the selected frequency value to be measured does not influence the normal work of the radio frequency module, so that the working frequency of the interference source does not need to be frequently adjusted, the normal work of the radio frequency module and the interference source is ensured, and the anti-interference is realized on the premise of not increasing the hardware cost. The anti-interference device and equipment and the readable storage medium provided by the invention also have the above technical effects.

The invention discloses a magnetic levitation track state comprehensive detection device, and belongs to the field of track measurement. The device comprises a vehicle body connecting seat arranged above a magnetic suspension track, a tool frame arranged on the bottom side of the vehicle body connecting seat and located between the vehicle body connecting seat and the magnetic suspension track, and a measuring set arranged on the tool frame. The measuring set comprises an F rail profile measuring sensor arranged on the tool frame and located over the F rail, a vehicle body posture measuring sensor arranged on the tool frame and located below the vehicle body connecting base, and a plurality of sleeper irregularity measuring sensors arranged on the tool frame and located above the sleepers.According to the invention, the function of quickly and comprehensively detecting the magnetic levitation track and the auxiliary power supply facilities is realized, and meanwhile, the digital laserdetection technology and equipment with accuracy, reliability, safety and high efficiency are adopted, so that the system has the advantages of high accuracy, high reliability, interference resistance, all-weather operation and the like.