37results about How to "Receive quickly" patented technology

The invention provides a method for quickly training an LSTM (Long Short Term Memory) model by time series data, which relates to the technical field of data processing, and comprises the following steps: S1, a data integration stage: efficiently processing and utilizing telemetering real-time stream data through Kafka and Flink, s2, a data storage stage: storing the time sequence data processed in the integration stage into a high-performance database IoTDB specially designed for the time sequence data according to a time sequence, and S3, an algorithm application stage: constructing an LSTM model, setting parameters, optimizing the LSTM model, and performing time sequence data prediction by using an LSTM algorithm model. According to the method for rapidly training the LSTM model through the time series data, the time series telemetry data generated in the test flight process are collected and processed through Kafka, real-time data of an aircraft can be rapidly captured, processed and analyzed, data transmitted by a sensor and an algorithm model are decoupled through the Kafka, data output by the sensor can be directly sent to the Kafka, and the LSTM model can be rapidly trained through the Kafka. And it is avoided that an algorithm model needs to be concerned to process data.

The invention discloses an inter-satellite laser link capturing device and method based on front finger angle rotating mirror space scanning, and belongs to the field of spacecraft laser capturing. A local-end satellite uses a front finger angle rotating mirror to control emergent laser beams to perform sub-region space scanning; a large-mass one-dimensional overall pointing deflection mechanism and a satellite platform are used for controlling emergent laser beams to execute primary driving so as to move the sub-regions; repeating the first step after moving the sub-region; and circularly carrying out regional scanning on the uncertain region until the far-end satellite receives the irradiation of the emergent laser beam so as to correct the direction of the far-end satellite and emit a retroreflection beam to the local-end satellite, and stopping scanning and correcting the direction of the local-end satellite after the local-end satellite receives the retroreflection beam. According to the inter-satellite laser link capturing device and method based on front finger angle rotating mirror space scanning, the purpose of greatly reducing the time cost of an inter-satellite laser link capturing task and the consumption cost of a propellant by fully utilizing limited beam pointing control resources on a satellite can be achieved.

The invention discloses a high-precision strong steel frame punching machine which comprises a machine frame, an upper die assembly, a lower die assembly, a discharging disc and a pushing mechanism, a control bin is arranged in the machine frame, a control cabinet for controlling the whole punching machine to work is placed in the control bin, and a protective cabinet door is hinged to the front end of the control bin. The discharging disc is located behind the lower die assembly and inclines towards the bottom of an opening in the rear portion of the rack, a storage channel is arranged below the rack, the two sides in the storage channel are each provided with a sliding rail, the pushing mechanism is slidably connected between the two sliding rails, the pushing mechanism comprises a movable support and a pushing assembly, and a lifting air cylinder is fixed in the movable support. A piston rod of the lifting air cylinder is connected with a lifting table, the material pushing assembly is fixed to the lifting table and comprises a material pushing box, a first material pushing air cylinder and a material pushing channel, the first material pushing air cylinder is arranged in the material pushing box, a piston rod of the first material pushing air cylinder is connected with a pushing plate, the material pushing channel is arranged on the moving track of the pushing plate, and a plurality of material pushing rods are arranged at the front end of the pushing plate. According to the invention, rapid blanking is realized.

The invention discloses a modular stamping die capable of achieving automatic feeding and automatic receiving, relates to the technical field of stamping dies, and aims to solve the technical problem that continuous operation and accurate positioning of the stamping die are difficult to achieve at the same time. The punching mechanism, the intermittent discharging mechanism, the reciprocating driving mechanism and the continuous feeding mechanism are arranged on the punching base table, the material receiving box is arranged at the tail end of the punching base table, and the reciprocating driving mechanism drives the adjustable clamp set to achieve continuous and accurate feeding through the sliding conveying assembly and the sliding clamping assembly; and an adjustable clamp set is further designed, so that the adjustable clamp set has the function of accurately clamping the circular workpieces and the rectangular workpieces, the stamping precision can be guaranteed, meanwhile, rapid, accurate and continuous conveying and receiving of materials can be achieved, and therefore the production efficiency is greatly improved, the labor cost is reduced, and the product quality stability is improved.

The invention relates to the field of data testing and financial science and technology, and discloses a real-time data testing method, device and equipment and a medium, and the method comprises the steps: configuring a derivative environment for a Kafka cluster, and after the Kafka cluster is logically classified, creating a derivative task of the Kafka cluster based on the derivative environment; performing rationality evaluation on the derivative task, when an evaluation result meets a preset result, querying an execution resource quantity of a task execution system corresponding to the derivative task, and starting to execute the derivative task when the execution resource quantity meets a demand quantity of an execution number task; and during execution of the derivative task, reading theme message data of the Kafka cluster, performing data desensitization and data storage on the theme message data, obtaining desensitization data, transmitting the desensitization data to a data test environment, obtaining test data, performing data integrity test on the test data, obtaining a test result, and completing the derivative task when the test result is complete. According to the invention, the accuracy of real-time data testing can be improved.

The utility model discloses an unmanned ship body, which belongs to the technical field of unmanned ships and comprises a ship body, one end of the ship body is fixedly connected with a fixing plate, the surface of the fixing plate is provided with a signal transmission module, and the other end of the ship body is provided with a protection box. By arranging the rotating mechanism, the camera shooting equipment arranged on the ship body can be rotationally adjusted, the water surface monitoring range of the ship body and the angle adjusting flexibility of the camera shooting equipment are improved, meanwhile, the signal transmission module is arranged on the ship body, signals can be conveniently transmitted to workers, and therefore the workers can rapidly receive the signals, and the working efficiency is improved. According to the ship body, the working efficiency of the ship body is improved, a signal lamp on the ship body can be driven to swing by arranging a swing mechanism, so that the display range of the signal lamp is expanded, a worker can rapidly receive a signal transmission, and the problem that the signal cannot be received in time when the ship body is shielded by other objects is solved; and the ship body signal emission efficiency is improved.

The invention relates to the technical field of phototherapy masks, and discloses a light source control method, a phototherapy mask and a computer readable storage medium, and the light source control method is used for the phototherapy mask and comprises the steps: obtaining a receiving signal of a receiving end of a wearing sensor, judging the signal transmission condition between the transmitting end of the wearing sensor and the receiving end according to the receiving signal; if the receiving end receives the transmitting signal transmitted by the transmitting end, controlling the light source of the phototherapy mask to be turned off; and if the receiving end does not receive the transmitting signal transmitted by the transmitting end, controlling the light source of the phototherapy mask to be turned on. According to the light source control method provided by the invention, when the receiving end receives the transmitting signal transmitted by the transmitting end, the light source of the phototherapy mask is controlled to be turned off; only when the receiving end does not receive the emission signal emitted by the emission end, the light source of the phototherapy mask is controlled to be turned on, strong light stimulates eyes, great discomfort is avoided, and user experience is improved.

The invention relates to the technical field of positioning clamps, in particular to a positioning device for stamping medical appliances, which comprises a mounting box, a rotating mechanism is fixedly mounted at the bottom end in the mounting box, a rotating circular plate is rotatably connected in the mounting box, and the rotating mechanism drives the rotating circular plate to rotate. A limiting mechanism capable of limiting the nail abutting base is fixedly installed at the upper end of the rotating circular plate, a punching machine capable of punching the nail abutting base in the limiting mechanism is further fixedly installed in the mounting box, a punching module is fixedly installed at the output end of the punching machine, and a feeding mechanism capable of feeding materials into the limiting mechanism is further fixedly installed in the mounting box. And the nail abutting seat in the inner wall of the limiting pipe is limited through the limiting clamping strip, so that the nail abutting seat is fixed more stably, and the effect of accurate positioning is achieved.

The present invention discloses an intersatellite laser link capture device and method based on forward-pointing angle rotating mirror space scanning, which belongs to the field of spacecraft laser capture. The local satellite uses the forward-pointing angle rotating mirror to control the outgoing laser beam to perform sub-region space scanning; uses a large-mass one-dimensional overall pointing deflection mechanism and a satellite platform to control the outgoing laser beam to perform a drive to move the sub-region; repeats the first step after moving the sub-region; cyclically scans the uncertain area in different regions until the remote satellite receives the outgoing laser beam to correct the remote satellite pointing and emit a return beam to the local satellite. After receiving the return beam, the local satellite stops scanning and corrects its pointing. The present invention adopts the above-mentioned intersatellite laser link capture device and method based on forward-pointing angle rotating mirror space scanning, which can achieve the purpose of making full use of the limited beam pointing control resources on the satellite and greatly reducing the time cost and propellant consumption cost of the intersatellite laser link capture task.

The invention discloses an intelligent information pushing method and apparatus, a computer device and a storage medium. The method comprises the steps of obtaining a sub-information pool corresponding to an information recommendation pool creation instruction to form an initial information pool; obtaining an information container grouping result of each sub-information pool in the initial information pool based on a grouping model; information container selling data are obtained according to the information container grouping results so as to update the initial information pool to obtain a current information pool; acquiring to-be-displayed data of the information containers according to the information container grouping results corresponding to the sub-information pools so as to update the current information pool to obtain a final information pool; and pushing each information container group in the final information pool to a preset receiving terminal for display in the corresponding information container effective time period set. According to the embodiment of the invention, the selling data and the to-be-displayed data can be quickly received by taking the information container in the information pool as a carrier to complete automatic and quick configuration, and are pushed to the preset receiving terminal in the corresponding effective time period set to be displayed in time.

The present invention discloses a tag reading device and a tag reading system, which can quickly specify the minimum output value that can read an RFID tag. The tag reading device includes: an antenna, a communication control circuit, a communication interface and a processor. The communication control circuit controls the output signal output from the antenna and the received signal received by the antenna. The communication interface communicates with a host device. The processor uses the antenna and the communication control circuit to specify the minimum output value of the output signal that can read a specified RFID tag, and sends the minimum output value to the host device through the communication interface.

The invention provides a voice broadcast system and a voice broadcast method. The voice broadcast system comprises a sound box device and a control device, the control device is detachably arranged on the sound box device and is used for controlling the sound box device; the control device is in a split state after being detached from the sound box device, and the control device in the split state is configured to be held by a user for use; wherein in the split state, the control device responds to an operation instruction triggered by a user and sends a voice broadcasting instruction to the loudspeaker box device, and the voice broadcasting instruction comprises information to be broadcasted; and the sound box device responds to the voice broadcast instruction, generates voice broadcast data according to the to-be-broadcasted information, and plays the voice broadcast data. According to the invention, the efficiency and consistency of voice broadcasting can be improved.

Provided are an emergency message transmission method and system, the method being applied to a first UE, the method comprising: in response to first login information of a target user, after the first login information passes verification, selecting a first temporary private key based on a prime field, and determining a first temporary public key corresponding to the first temporary private key based on an elliptic curve base point; generating a first initial abstract based on the user identity information, the first temporary public key and the to-be-transmitted information, and generating a first signature factor based on the user signature private key, the first temporary private key and the first initial abstract; first emergency information is sent to the satellite node, after the satellite node receives the first emergency information, a first verification abstract is calculated based on the user identity information, the first temporary public key and the to-be-transmitted information, the first verification abstract is verified based on public parameters issued by the NCC and a first signature factor, and second emergency information is sent after verification is passed; and the time delay and the communication overhead required for transmitting the emergency message are reduced.

The utility model discloses an internet-of-things balance valve CAT1 communication integrated controller which comprises a balance valve body and a controller body fixedly arranged at the upper end of the balance valve body, a supporting groove is formed in the controller body, a supporting chip is fixedly connected in the supporting groove, a cooling supporting shell is arranged on one side of the supporting chip, and the cooling supporting shell is fixedly connected with the supporting chip. The cooling device comprises a cooling supporting shell, circulating pipe frames are fixedly arranged in the cooling supporting shell, the circulating pipe frames extend out of the two sides of the cooling supporting shell, the two circulating pipe frames are fixedly connected with a confluence cylinder at the same time, and the confluence cylinder is connected with the cooling supporting shell in an inserted mode. The CAT balance valve body communication mode of the controller body to the balance valve body and the whole device is improved, and equipment can send and receive data more quickly, so that the communication efficiency and the response speed can be improved, the stable in-out continuous operation of the device is ensured, and the temperature reliability during continuous operation of a supporting chip is ensured.

This invention provides a novel light field AR-HUD device integrating dual-focal-plane and triple-focal-plane displays. In this invention, light from three different virtual image distances is emitted from the same image source. The light from the farthest focal plane passes through an adjustable optical path device and is transmitted together with the light from the intermediate focal plane to a small freeform surface mirror. The light from the closest focal plane is emitted by the PGU and transmitted to the small freeform surface mirror. Then, the light from all three focal planes is projected onto a large freeform surface mirror and reflected by the car windshield into the driver's eyes, allowing the driver to simultaneously see images from three different distances. This invention uses a single PGU and, through its optical structure, can achieve switching between dual-focal-plane and triple-focal-plane light field AR-HUD displays, meeting the needs of more driving scenarios, resulting in more layered images and superior display effects, while avoiding a significant increase in cost, providing a new solution for the development of HUD technology.

The embodiment of the invention provides a negative plate which comprises a current collector, a first negative electrode coating arranged on the surface of the current collector and a second negative electrode coating arranged on the surface, away from the current collector, of the first negative electrode coating, a first negative electrode active material has a first multiplying power, a second negative electrode active material has a second multiplying power, and the first multiplying power is smaller than the second multiplying power; the negative plate is provided with a second negative electrode coating as an outer layer, and a rapid ion transmission channel is provided, so that lithium ions outside the negative plate can rapidly reach an inner layer through the outer layer for layer storage, and rapid current receiving and conduction are realized; the first negative electrode coating is arranged as the inner layer, so that the inner layer has large and stable capacity and can absorb lithium ions transmitted by the outer layer. The embodiment of the invention also provides a preparation method of the negative plate and a battery, which have the above beneficial effects.

The present invention relates to the technical field of electronic digital data processing, and specifically discloses a parallel tensor filling method based on a GPU. The method comprises: initial matrix generation, tensor division accuracy determination, sub-tensor parallel processing and parallel tensor filling, wherein the initial matrix is ​​generated according to a matrix method, sub-tensors are obtained by a preset tensor division method based on the data amount of a data set to be filled, and the division accuracy is verified to optimize the division method; sub-tensor binary coordinates are obtained by a predefined coordinate positioning method, a parallel sub-tensor sequence is obtained by combining a parallel tensor search method, and the sub-tensor sequence is transmitted to a GPU memory space for parallel processing, the GPU parallel processing performance is evaluated, the weight of each sub-tensor sequence is obtained by parallel processing, the initial matrix is ​​updated to an update matrix, and finally the missing data is filled in a predefined method, the parallel tensor filling of the data is completed, and the accuracy and integrity of the data are improved.

The invention provides an intelligent postoperative nursing device for tumor patients. The intelligent postoperative nursing device comprises a box body, a swing pipe rotationally arranged on one side of the upper end of the box body and a containing box. A mounting block is arranged at the upper end of the side, away from the bearing, of the swing pipe, a connecting pipe is arranged at the lower end of the containing box and rotationally connected with the mounting block, a first driving mechanism is arranged on the mounting block, and the upper end and the lower end of the connecting pipe communicate with an inner cavity of the containing box and an inner cavity of the swing pipe correspondingly. A storage box is arranged on one side of the containing box, a water suction nozzle capable of sliding up and down is arranged in the storage box, a flexible waterproof cover is arranged at the upper end of the storage box, and a linkage mechanism is arranged between the water suction nozzle and the mounting block. The containing box is covered, and the containing box and the swing pipe are flushed, so that peculiar smell emitted by adhesion of vomitus is effectively avoided, and cross infection caused by diffusion of germs to a ward is avoided; the oral cavity can be washed, the discomfort of a patient is relieved, and the rehabilitation belief of the patient is enhanced; the water suction nozzle can be disinfected in time, residual germs are avoided, and cleanliness and sanitation are achieved.

The utility model discloses a convenient-to-operate food processor which comprises a stirring cup and a main machine installed above the stirring cup, a driving assembly used for driving a stirring piece in the stirring cup to work is arranged in the main machine, the main machine comprises a first main body and a second main body which is connected to the lower portion of the first main body and expands in the radial direction, and the second main body is connected to the lower portion of the first main body. The second main body is provided with a step face extending outwards relative to the side wall of the first main body, the food processor is only provided with a function operation area used for intelligently controlling starting and stopping of a driving assembly, the function operation area is arranged on the step face, and a circuit board is installed in the second main body and located below the function operation area. The circuit board surrounds the outer side of the driving assembly. Intelligent control of the host can be realized, and a user does not need to continuously press a starting switch, so that both hands of the user can be liberated; the function operation area is only arranged on the step surface, a user only needs to operate in one area, the operation amount of the user can be saved, and use is more convenient.

The invention relates to the technical field of plastic bottle forming molds, in particular to a PET plastic bottle forming mold which comprises two mold bodies, a cavity used for forming a plastic bottle is formed when the two mold bodies are combined, heating devices are arranged in the mold bodies, and bamboo joint pipes and electric heating wires are arranged in the heating devices. When a bottle blank enters a cavity formed by combining the two main body molds, the bamboo joint pipe pushes the electric heating wire to the outer side of the bottle blank; the heating device comprises a mounting groove formed in the mold main body, a bamboo joint pipe is fixedly mounted at the bottom end of the mounting groove, a movable part is fixedly mounted at the top end of the bamboo joint pipe, and the movable part is arranged in the mounting groove; an air channel communicating with the interior of the bamboo joint pipe is formed in the bottom end of the mounting groove and used for communicating with an air pump outside the mold body. The blow molding device solves the problem that the actual temperature of the bottle blank is lower than the expectation during blow molding processing.

The invention discloses a washing machine water leakage detection method, which comprises the following steps: carrying out ultrasonic detection on an easy water leakage position of a washing machine before the washing machine drains water, and judging whether a water leakage point exists and the position of the water leakage point according to sound wave information obtained by ultrasonic detection; the invention also aims to provide the washing machine, and the washing machine applies the washing machine water leakage detection method. The ultrasonic generators are installed at multiple positions where water leakage is prone to happening such as an overflow pipe, a drain valve and a drain pipe, the ultrasonic receiver is installed at the drain pipe, the ultrasonic receiver transmits received ultrasonic information to the information processor, the position where water leakage happens is judged through comparison processing, a user is warned and reminded in time, and the water leakage rate is increased. A user can conveniently and quickly receive and know the water leakage position and the water leakage reason of the washing machine, so that household flood disasters and property loss are avoided.

The invention discloses an intelligent switching control system for a transformer in a power distribution area, and relates to the technical field of transformer switching control. A transformer detection terminal is arranged to periodically collect load data of the transformer in the power distribution area in a target area in a target power grid; a user side processing unit periodically collects user side load data in a target area, the user side processing unit processes the user side load data, a basic sequence and a recursive sequence are determined based on frequencies of different arrays to be verified in the user side load data in the processing process, a first compression mapping chain and a second compression mapping chain are constructed, and the first compression mapping chain and the second compression mapping chain are compressed. A mapping relation is established by using a shorter character sequence based on the basic sequence and the first and second compression mapping chains thereof, so that the capacity of user side load data is greatly compressed, the transmission rate of the user side load data in a network is further shortened, a switching strategy terminal can receive the data more quickly and input the data into a model, and the user side load data transmission efficiency is improved. And the generation rate of the commissioning and quitting strategy is accelerated.

The invention relates to the technical field of intelligent video transmission, in particular to an intelligent video transmission method and device based on channel conditions and a medium. S1, judging whether a file is complete or not: selecting a file to be transmitted, converting the file format, and then judging the integrity of the file; s2, acquiring signal transmission information: acquiring information of transmission channels, and grading the channels; s3, processing the file: firstly judging the size of the file, and then compressing the file according to a judgment result; according to the invention, the channels can be graded, and when the video file is transmitted, the proper channel can be accurately selected to transmit the video file according to the comparison formula and the judgment of the transmission distance L, so that the situation that the channel transmission rate is slowed down and the file receiving time is prolonged due to the fact that the file is transmitted to one channel by one stock is avoided; the management of video file transmission is enhanced, and the utilization rate of a channel is improved.

This utility model relates to the field of medical testing technology and aims to solve the problems of low information signing efficiency, high labor and time costs, and easy introduction of errors in the existing technology of manually entering sample information into the system. The utility model provides a sample ring, which is a ring-shaped structure used to fit over a sample tube. The sample ring has a built-in NFC chip that stores sample information data. The NFC chip is used to cooperate with an NFC device, enabling the NFC device to read the data in the NFC chip and sign for the sample information. This utility model uses an NFC chip to store sample information, accurately recording the sample information. When the NFC chip is brought close to an NFC device, the NFC device can quickly receive the data in the NFC chip and obtain the sample information, eliminating the need for manual entry, improving information signing efficiency, and saving human resources and time costs.

The invention discloses a digital conference audio interaction system and method and a storage medium, and particularly relates to the technical field of audio interaction, and the system comprises a conference starting and authorization module which is used for starting a conference and managing the authority of participants; the conference scene virtualization module can be used for setting a conference scene and related elements; the participant identity verification module verifies the identity through face recognition and the like and provides personalized setting; the voice separation and recognition module can separate and extract personal audios when multiple persons speak; the interactive operation matching module is used for matching an operation instruction with a virtual object and processing an unidentified object; the system further comprises an audio processing module for optimizing the audio effect. According to the invention, the defects of the existing digital conference system in the aspects of organization management, scene setting, identity verification, voice processing, interactive operation and the like are overcome, the efficiency, quality and participating experience of the digital conference are improved, and the method is suitable for various business, academic and other conference scenes.

The invention discloses a network server connection method, a terminal and a network server, and relates to the technical field of network servers. The network server specifically comprises a network server main body which is used for storing other components; the information receiving module is used for receiving a network access identification request of the mobile terminal, a network access number and a network access code of the mobile terminal, and identity identification information of other operators establishing a contract relation with an operator of a home location of the mobile terminal; and the information storage module is used for storing local operator information. According to the network server connection method, the terminal and the network server, the network access request of the mobile terminal is judged and processed through the network server, data exchange between the mobile terminal and the network server is reduced, the network server directly processes the data, the network access speed of the mobile terminal is increased, and the user experience is improved. The overall data processing speed is high, and result judgment is accurate.

The utility model relates to the technical field of blanking devices, in particular to a bottle blanking auxiliary structure. Comprising a rack; a belt conveyor is fixedly installed on the top face of the rack through bolts, and an auxiliary conveying device is arranged on the top face of the belt conveyor. The auxiliary conveying device comprises a motor, a chain gear and an auxiliary conveying gear, the motor is fixedly installed on the top of the rack through bolts and a fixing frame, the output end of the motor is in transmission connection with the chain gear, and the output end of the chain gear is in transmission connection with the auxiliary conveying gear. An auxiliary conveying gear is arranged on the auxiliary conveying device, and the main purpose of arranging the auxiliary conveying gear is to quickly receive falling bottles and control the falling speed of the bottles to a certain extent, so that the bottles cannot be accumulated on the belt conveyor in the falling process; and meanwhile, the working speed of the front conveyor can be increased, so that the production efficiency of bottle conveying is integrally improved.

The invention provides a point-to-point subscription message distribution method and system between message middleware, and belongs to the technical field of data communication, and the method comprises the steps: receiving a remote subscription request; the remote subscription request is sent after the second message middleware receives the remote subscription request generated by the remote data consumption end; receiving a local subscription request; receiving message information; constructing a remote message distribution set corresponding to each remote data consumption end and a local message distribution set corresponding to each local data consumption end according to all the remote subscription requests, all the local subscription requests and all the message information; all the remote message distribution sets are sent to the second message middleware, and each local message distribution set is sent to the corresponding local data consumption end. According to the invention, a message distribution and cross-domain transmission mechanism based on a subscription request is constructed in a multi-domain environment, so that uniqueness and fairness distribution of message information among different domains are realized.

The application discloses an information intelligent pushing method and device, computer equipment and a storage medium. The method comprises the following steps: obtaining sub-information pools corresponding to information recommendation pool creation instructions to form an initial information pool; obtaining information container grouping results of each sub-information pool in the initial information pool based on a grouping model; obtaining information container selling data for each information container grouping result to update the initial information pool to obtain a current information pool; obtaining information container to-be-displayed data for the information container grouping result of each sub-information pool to update the current information pool to obtain a final information pool; and pushing each information container in the final information pool to a preset receiving terminal in a corresponding information container effective time period set to be displayed. The embodiment of the application can quickly receive selling data and to-be-displayed data by taking information containers in the information pool as carriers to complete automatic and rapid configuration, and push the information containers to the preset receiving terminal in the corresponding effective time period set to be displayed in time.

The invention discloses an urban rail transit trackside data secure transmission method and system. The method comprises the following steps: step 1, setting a rail circuit transmission process; 2, setting an inter-rail cable conveying process; step 3, setting a transponder transmission process; 4, setting a wireless transmission process; and 5, selecting a data exchange security mechanism. Different processes aim at ensuring the accuracy, integrity and safety of data in the transmission process, meanwhile, the transmission efficiency is improved so as to meet the operation requirements of an urban rail transit system, data conflicts and transmission errors are avoided, the transmission reliability is improved, information interference is avoided, the effectiveness of data transmission is ensured, and the data transmission efficiency is improved. The method is an important guarantee for safe, efficient and stable operation of urban rail transit.