231 results about "Bidirectional transmission" patented technology

The invention relates to the technical field of computational mechanics and geological disaster simulation, and discloses a full-process numerical simulation method suitable for simulating continuous medium damage to discontinuous medium movement. The invention provides a novel chain-type disaster simulation method for solving the problems that calculation efficiency and large deformation precision are difficult to consider at the same time and the evolution process of a slope from a continuum to a fragmented body cannot be dynamically reflected in the prior art. The core of the method is that a dynamic criterion is set based on a unit real-time damage variable, a failed finite element (FEM) unit is adaptively converted into smoothed particle hydrodynamics (SPH) particles, and the physical state of the particles is accurately mapped; and a virtual particle coupling algorithm is adopted to process a two-domain interface, so that bidirectional transmission of mechanical parameters is realized. The method is executed circularly, the whole process of'continuous deformation-fragmentation flow 'of the side slope is simulated dynamically, high-precision integrated simulation of a'seismic source-propagation-response-movement' disaster chain in the same frame is achieved, and an efficient tool is provided for disaster risk assessment and prevention and control.

The invention provides a communication delay detection and control method for ship remote control, and the method comprises the steps: embedding a high-precision timestamp in a control instruction and a data packet through a shipborne 4G / 5G dual-mode communication module and a shore-based monitoring center, and transmitting the high-precision timestamp; two-way transmission delay of the ship-shore communication link is measured based on the embedded timestamp, and the packet loss rate in a preset time window is counted; on the basis of historical delay data, a dynamic moving average method is combined with an adaptive Kalman filtering algorithm to predict a delay change trend in a future short period; judging the current communication state according to the bidirectional transmission delay, the packet loss rate and the predicted delay change trend; a sending strategy of the control instruction is adaptively adjusted according to the judgment result, or the ship-borne local intelligent controller is switched to execute autonomous risk avoiding control; an improved clock synchronization protocol is adopted regularly to calibrate a ship-shore clock, and timestamp synchronization precision is ensured. Through the synergistic effect of ship-shore clock synchronization optimization, instruction verification sequencing and other modules.

The invention provides an intelligent control method and system for a body-equipped robot based on man-machine interaction data, and relates to the technical field of medical robots, and the method comprises the steps: building a 5G network two-way transmission channel between a control end and a surgical robot end; through a 5G network two-way transmission channel, synchronously transmitting two types of data streams between the control end and the surgical robot end, namely a control instruction data stream generated by the control end and a surgical image data stream collected by the surgical robot end; in the transmission process of the two types of data streams, real-time network time delay is continuously monitored, whether the current network time delay exceeds a preset time delay threshold value or not is judged, and the preset time delay threshold value can be dynamically corrected according to the network state; and when it is judged that the current network delay exceeds the preset delay threshold, dynamically deploying a plurality of network probes on the 5G network two-way transmission channel. According to the invention, the real-time performance, the accuracy and the safety of the remote operation can be ensured.

An arrangement is for increasing the range of an electrically driven vehicle combination. The arrangement includes a power adaptation and charging control unit for bidirectionally transmitting voltage between a first high-voltage battery of a towing vehicle of the vehicle combination and a second high-voltage battery of a trailer of the vehicle combination.

A bidirectional power supply apparatus includes: an alternating current input port for inputting an alternating current to the bidirectional power supply apparatus; an alternating current output port for outputting the alternating current to an alternating current device; a direct current input or output port for transmitting a direct current between the bidirectional power supply apparatus and a direct current device bidirectionally; a bidirectional energy conversion module for performing multiple energy conversions on electrical energy inputted to the bidirectional power supply apparatus; and a power management module electrically connected to the alternating current input port, the alternating current output port, and the direct current input or output port. The power management module is configured to control an energy conversion manner of the bidirectional energy conversion module according to a port connection status of the alternating current input port, the alternating current output port, or the direct current input or output port.

The invention relates to a series connection type balance control system, method and device between parallel battery clusters, the system comprises n battery branches which are connected in parallel, and each battery branch comprises a battery cluster, a positive adjusting element, a negative adjusting element, a positive bypass switch and a negative bypass switch, an energy two-way transmission unit is connected in series between one positive pole bypass switch and the other negative pole bypass switch in two adjacent positive pole bypass switches; and an energy two-way transmission unit is also connected in series between the nth positive pole bypass switch and the first negative pole bypass switch. The system makes up the electric quantity difference between the battery clusters through the mutual cooperation of the energy storage element group connected in series with the negative electrodes of the battery clusters and the bypass switch group connected in parallel with the energy storage element group, forms an SOC equalization path, does not involve a high-voltage direct-current bus, only uses a low-voltage energy bidirectional transmission unit, is low in power and low in cost, and improves the reliability of the system. The input and output of the equalization control energy two-way transmission unit can be freely set, and equalization control can be carried out between any two battery clusters.

The invention provides a portrait animation generation method and system based on a reversible encoder and dynamic optimization, and relates to the technical field of video portrait reconstruction, high-precision portrait animation generation is realized through multi-module collaborative innovation, multi-scale appearance features are extracted by using a VAE encoder, identity vectors extracted by ArcFace and global appearance embedding of CLIP are combined, and the portrait animation generation method and system based on the reversible encoder and dynamic optimization are realized. Constructing a multi-modal characteristic system; a high-precision attitude estimation algorithm is adopted to extract fine joint points, and an error between a generated attitude and an original attitude is calibrated in real time through a dynamic optimization strategy, so that the attitude driving accuracy is remarkably improved. A reversible residual block is designed to realize lossless two-way transmission of features, and the problem of information compression of a traditional encoder is avoided; a high-frequency detail injection mechanism is introduced, high-frequency features such as facial textures are extracted through a pre-training model and fused with shallow features, an attention mechanism guided by identity features is introduced based on the generation process of a diffusion model, and the consistency of character identities in the generation process is ensured.

The invention discloses an ancient masonry bridge floater impact analysis method based on fluid-solid coupling, which comprises the following steps of: firstly, creating and correcting a finite element model of a bridge structure by combining three-dimensional scanning and field vibration test; secondly, according to the water flow monitoring data, a matched fluid domain model is created, and the motion characteristics and boundary conditions of fluid are determined; then, a bidirectional information exchange mechanism between the structure and the fluid is established, and bidirectional transmission of key parameters such as load and displacement under the fluid-solid coupling effect is achieved; and finally, setting the size and material parameters of the floating object, executing the whole process simulation of the floating object impacting the ancient masonry bridge, obtaining the core data of the bridge structure, and completing the impact influence analysis. The evaluation method has the advantages of being complete in process, accurate in modeling and rich in result, the influence of floating object impact on the ancient masonry bridge can be effectively quantified, the blank of floating object impact analysis of the ancient masonry bridge is filled up, and a scientific basis is provided for preventive protection of bridge heritage.

In open-pit mines and underground mine tunnels, this system accurately tracks the position of mining vehicles such as heavy machinery and support vehicles, as well as their relative positions, enabling safe control of mining vehicles. [Solution] The system comprises a plurality of first devices 1 installed in or around a mine pit P or tunnel T, capable of acquiring their own position information, and a plurality of second devices 2 installed on multiple mining vehicles brought into the mining site. The system includes distance calculation means for calculating the distance between each of the plurality of first devices 1 and the second device 2 based on the bidirectional transmission and reception times of information or signals between each of the plurality of first devices 1 and the second device 2, and position identification means for identifying the position of the second device 2 based on the distance between each of the plurality of first devices 1 and the second device 2 calculated by the distance calculation means, and the position information of each of the first devices 1.

The present application relates to the field of sewage treatment, and more particularly to an AOA sewage treatment intelligent control system based on digital twinning. It comprises a physical perception layer, a data transmission layer, a digital twinning layer, an intelligent control layer and an execution layer. The physical perception layer collects AOA process physical data throughout the whole process and preprocesses them into standardized data; the data transmission layer realizes the bidirectional transmission of data and control instructions between each level; the digital twinning layer, based on the denitrification and phosphorus removal microbial metabolism mechanism of the AOA process, constructs a whole-process twinning model synchronized with the physical system in real time and generates simulation prediction data; the intelligent control layer generates control instructions according to the data; the execution layer executes the instructions and collects feedback data, which is used to update the twinning model and correct the control instructions. Through the five-layer series closed-loop structure, the present application realizes the intercommunication of data, the interaction of instructions and the closed-loop feedback of each level, and constructs a whole-process closed-loop intelligent control system of "perception-transmission-twinning-decision-execution".

The invention discloses a bullet hole positioning target picking system based on a WiFi local area network and camera visual recognition, and relates to the technical field of shooting training auxiliary equipment. Comprising a visual acquisition module, a WiFi communication module, a main control module, a target picking execution module and a power supply module, the visual acquisition module acquires a target sheet image through a high-definition camera, and optimizes the image quality in combination with a light sensing unit and an image preprocessing unit; the WiFi communication module constructs a wireless local area network to realize two-way transmission of image data and control instructions among the modules; the main control module completes accurate bullet hole positioning through image recognition and positioning calculation and generates a target picking control instruction; the target picking execution module completes target paper clamping, recycling and replacing based on the control instruction, and closed-loop control is achieved through position detection. The bullet hole positioning precision is improved through self-adaptive image preprocessing and target sheet position correction, bullet hole positioning and target picking full automation are achieved, and the method can be widely applied to scenes such as shooting training and competitions.

The invention provides a clearance-adjustable worm and gear type speed reducer. The clearance-adjustable worm and gear type speed reducer comprises a box body, the worm wheel assembly comprises a worm wheel, an output shaft coaxially fixed with the worm wheel, and a first bearing seat and a second bearing seat which are respectively arranged on two sides of the worm wheel and support two ends of the output shaft; the worm gear assembly is detachably installed on the box body through the first bearing seat and the second bearing seat, and a whole is formed after installation. The worm is rotatably supported on the box body through a bearing assembly and is meshed with the worm gear; the first adjusting mechanism is arranged between the first bearing seat and / or the second bearing seat and the box body, and is used for driving the worm gear assembly as a whole to perform position fine adjustment relative to the box body in the radial direction of the output shaft; and the second adjusting mechanism is arranged on the box body, is connected with one end of the worm and is used for independently adjusting the axial mounting position of the worm. After being installed, the worm gear assembly serves as a whole to be subjected to radial fine adjustment and cooperates with worm axial adjustment, and therefore the bidirectional transmission gap is compensated conveniently and accurately.

This application discloses a fiber optic fluorescence level sensor based on evanescent waves, relating to the field of fiber optic sensing. The sensor includes: a light source module that outputs excitation light, which is sent to a fiber optic sensing unit to generate a fluorescence signal; a transmission fiber responsible for bidirectional signal transmission; a fiber optic sensing unit comprising a fiber optic strip D-groove structure, an encapsulation structure, a sensitive material, and a floating piston. The piston divides the encapsulation structure into two sections: the lower section contains the liquid to be measured, and the upper section integrates the sensitive material and the fiber optic strip D-groove structure. The piston floats synchronously with the liquid surface, changing the effective contact area between the sensitive material and the fiber optic strip D-groove structure, causing a regular change in the fluorescence intensity excited by the evanescent wave; a fiber optic spectrometer to acquire wavelength-intensity spectral information; and a computer module to perform data visualization, achieving real-time liquid level monitoring based on changes in fluorescence intensity. This sensor can improve upon the problems of existing fiber optic level sensors, such as complex fabrication, high cost, limited range, high equipment requirements, and poor adaptability to harsh environments.

The application provides a split locking bidirectional transmission device and method for an intermediate adding and removing rod drilling machine in a coal mine underground, which comprises a power shaft and a transmission shaft connected in sequence, and a locker is sleeved outside the power shaft and the transmission shaft; the locker comprises a locking seat, the locking seat comprises a hollow locking shaft, two or more than two positioning cavities are arranged on the locking shaft in a radial direction and are arranged at equal intervals in a circumferential direction, and a positioning ball is installed in each positioning cavity; the power shaft comprises a hollow power shaft body, and an arc-shaped positioning groove is arranged on the outer surface of the power shaft body; when the power shaft body of the power shaft is sleeved in the locking shaft to a state where the positioning cavities are radially aligned with the arc-shaped positioning groove, the radially inner side of the positioning ball can enter the arc-shaped positioning groove to realize locking. The split structure, threaded quick disassembly, axial locking anti-loosening, component part replacement and other technical means are adopted, bidirectional power transmission is realized, the service life of the transmission device is improved, the disassembly and replacement efficiency is improved, and the comprehensive use cost is reduced.

To provide an optical transmission device, an optical transmission system, and an optical transmission method that suppress an OSNR penalty due to return light.SOLUTION: An optical transmission device disposed at a fiber end of a single-core optical fiber and used when signal light is bidirectionally transmitted through the optical fiber, the optical transmission device comprising an optical transmitter configured to transmit first signal light in one direction belonging to the signal light, an optical receiver configured to receive second signal light in a reverse direction belonging to the signal light, and a controller configured to guide the first signal light transmitted from the optical transmitter to the optical fiber, An optical circulator configured to guide the second signal light from the optical fiber to the optical receiver; and a light source configured to output, to the optical fiber, excitation light that Raman-amplifies the second signal light to second optical power higher than first optical power of the first signal light.SELECTED DRAWING: Figure 2

This invention discloses a device testing circuit, a testing power supply, and a testing method. The device testing circuit includes an input circuit, a power supply circuit, a control circuit, and an output circuit. The input circuit uses an input DC bus circuit to receive and distribute DC power. The power supply circuit includes multiple independent power modules, each drawing power from the input DC bus circuit. The control circuit uses a switch matrix to achieve controllable connection between multiple output interfaces of the power supply circuit and the output circuit. The output circuit is used to connect to an experimental circuit. The input DC bus circuit is a bidirectional bus for bidirectional transmission of DC power between the power supply circuit and the experimental circuit. This invention solves the technical problems of existing testing power supplies, such as large size, poor combination flexibility, and insufficient portability.

The invention provides an electric energy meter clock drift compensation method and system based on model predictive control, and the method comprises the steps: setting a specific field in a time data packet which is bidirectionally transmitted between an electric energy meter and a time server, and endowing the specific field with an initial value; determining an effective synchronous data packet of the time data packet and a final value of the specific field according to the current value of the specific field and the waiting queue length of the router; determining an asymmetric coefficient of two-way transmission delay between the electric energy meter and the time server through the effective synchronous data packet, the initial value and the final value; and predicting the clock drift amount of the electric energy meter according to the clock drift prediction model of the electric energy meter, the effective synchronous data packet and the asymmetric coefficient, and performing real-time compensation correction on the local clock of the electric energy meter based on the clock drift amount. According to the scheme of the invention, the drifting of the clock of the electric energy meter can be compensated based on the bidirectional time delay difference of the electric energy meter.

The invention relates to the technical field of agricultural irrigation, in particular to a multi-shed agricultural automatic irrigation system, which comprises a main control box, a plurality of agricultural irrigation devices and a plurality of agricultural irrigation devices, each greenhouse irrigation node is internally provided with a distributed actuator, the distributed actuator is used for controlling a valve switch of the water valve, the distributed actuator is internally provided with a signal receiving and transmitting circuit, an optical coupling isolation circuit and an isolation power supply unit, and the isolation power supply unit is used for carrying out voltage reduction power supply on the signal receiving and transmitting circuit and the optical coupling isolation circuit. The optical coupler isolation circuit is used for receiving a communication instruction issued by the main control box, and the signal receiving and transmitting circuit is used for receiving the communication instruction processed by the optical coupler isolation circuit, so that the main control box and the signal receiving and transmitting circuit realize bidirectional transmission of communication data in an electrical isolation state through the optical coupler isolation circuit. The method has the advantages that the mounting number of a single communication bus in the irrigation system under the long-distance wiring condition is increased, the line cost is reduced, and the method can be installed and used without disassembling an old water valve.

This invention relates to the field of downhole operation technology and is an intelligent floating casing installation device for well completion. It includes an outer mandrel, an inner sliding sleeve, shear pin assemblies, positioning steel balls, a measuring module, and a lower connector. An outer ring platform is located on the outer side of the middle portion of the outer mandrel, with at least two vertically penetrating cable grooves spaced along the upper side of the outer ring platform. The inner sliding sleeve is located inside the outer mandrel and is cylindrical with an upward-opening shape. At least two connecting holes are spaced along the lower outer side of the inner sliding sleeve, and an installation ring platform is located on the upper outer side of the inner sliding sleeve. The installation ring platform is fixedly installed to the outer mandrel by at least two shear pin assemblies, and has an installation cavity within it. This invention has a reasonable and compact structure, is easy to use, and, by incorporating a measuring module, can monitor the temperature and pressure of the bottom hole fluid during well completion and production. By installing cables within the cable grooves, bidirectional data transmission is achieved, enabling the integration of an intelligent well completion system. It is reliable, efficient, and intelligent.

The utility model is suitable for the technical field of tool cabinets, and provides a tool cabinet system based on an RFID (Radio Frequency Identification) technology, which comprises a cabinet body, an antenna, a connecting line and an RFID card reader, the cabinet body is divided into an upper half part and a lower half part, the lower half part of the cabinet body is used for storing labeled articles, and RFID labels are attached to the side edges where the labeled articles are stored; antennae are arranged on the two sides in the lower half cabinet body; the connecting line is connected with the antenna and the RFID card reader; and the RFID card reader is arranged at the inner side of the lower half part cabinet body and is arranged at the rear. According to the utility model, the high-frequency RFID technology with the working frequency of 13.56 MHz is adopted, the RFID label has the capability of efficiently identifying label articles within 22 meters, generates a uniform read-write area to ensure stable identification, supports simultaneous reading of multiple labels, has a data write-in function to realize bidirectional transmission of information, and has a faster data transmission rate compared with a low-frequency RFID, the overall working efficiency is remarkably improved, and the cost is reduced. And global application and popularization are facilitated.

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

The invention discloses a multi-mode ultrasonic coupling analysis system for measuring bone mineral density. The system comprises a shell, a foot placing groove, a sole supporting plate, a display screen, a first transducer, a second transducer, a clamping mechanism and a signal collecting and processing module, wherein the first transducer and the second transducer are oppositely arranged. A detachable double-state coupling piece is installed at the front end of the transducer, the coupling piece is provided with a first coupling face and a second coupling face which are equal in thickness but different in acoustic impedance, and the first coupling face and the second coupling face make contact with the skin in sequence when used. The device carries out bidirectional transmission measurement under multiple frequencies, the processing module averagely extracts transmission frequency dispersion characteristics through two-state difference and reciprocity, the center frequency, sharpness and sensitivity of a transmission window are obtained through fitting, and cortical-spongy transmission window indexes are formed and used for distinguishing osteoporosis phenotypes and longitudinal follow-up visit. According to the method, a traditional homogeneous model that QUS only depends on sound velocity and attenuation is broken through, frequency dispersion window characteristics of a cortical-cancellous double-layer structure are introduced into clinical quantitative indexes for the first time, and sensitivity to early osteoporosis and follow-up visit reliability are improved.

The invention discloses a message passing detection algorithm for a bidirectional transmission symbol probability of an orthogonal time frequency air conditioning signal, and provides a calculation formula of a bidirectional transmission probability message, a convergence judgment criterion of an iterative detection process and two methods for reducing calculation complexity. The error code performance of the detection algorithm is superior to that of a linear minimum mean square error detection algorithm and a traditional message passing detection algorithm, and the convergence speed is higher than that of the traditional message passing detection algorithm. After the two methods for reducing the calculation complexity are applied, the bit error rate performance is only slightly reduced, but the calculation complexity is obviously reduced.

The application discloses a network data security management and control method and system based on bidirectional transmission, belongs to the technical field of data transmission, and can greatly increase the security in the key transmission process through the mode of multi-node cooperative transmission of key shares, and can effectively avoid the attack of malicious nodes and increase the security and redundancy of bidirectional data transmission through the authorization of multiple system nodes to newly accessed nodes, so that even if one or several key shares are stolen and cracked in the data transmission process, the illegal person cannot realize the decryption of data.

The utility model provides a kind of perovskite and metal oxide composite structure artificial synapse device, including high doped silicon layer, silicon oxide layer, perovskite film and metal oxide film, the top of high doped silicon layer is provided with silicon oxide layer, the top of silicon oxide layer is provided with perovskite film, the top of perovskite film is provided with metal oxide film.The utility model changes device structure to realize the function of artificial synapse, makes device to appear counterclockwise hysteresis when being bidirectional transmission characteristic curve test, and output current shows memory function when being pulse test.Through depositing perovskite film first, subsequently depositing metal oxide film on perovskite film, avoid the direct contact of perovskite film and air, so that device has better stability and life.The preparation method of the utility model only includes spin coating, magnetron sputtering and thermal evaporation, and operation process is simpler, process is compatible simultaneously, and time cost and process cost are lower.

The application provides a wireless signal coverage system and method for a multi-partition environment. The system comprises a near-end module, a cable and a far-end module. The near-end module comprises a baseband unit, a radio frequency unit and a near-end combining and separating unit. The near-end combining and separating unit is used for combining a received power signal, a control signal and a downlink radio frequency signal output by the radio frequency unit into a downlink mixed signal and transmitting the downlink mixed signal through the cable; and extracting an uplink radio frequency signal from the cable and sending the uplink radio frequency signal to the radio frequency unit. The cable is used for bidirectional transmission of the downlink mixed signal and the uplink radio frequency signal. The far-end module comprises a far-end combining and separating unit and an amplification unit. The far-end combining and separating unit is used for separating the downlink radio frequency signal, the power signal and the control signal from the downlink mixed signal received from the cable; and coupling the uplink radio frequency signal output by the amplification unit to the cable. The amplification unit is powered by the separated power signal and controls the working state of the amplification unit based on the control signal. An antenna is used for transmitting or receiving a wireless signal.

The invention relates to a programmable multipurpose sparse wavelength division multiplexer which comprises a first-stage filter and a second-stage filter, the second-stage filter comprises a plurality of filtering units arranged in parallel, the connecting end of the first-stage filter is coupled with the connecting end of each filtering unit, and the connecting end of the second-stage filter is coupled with the connecting end of each filtering unit. A bidirectional transmission path of an optical signal is formed between the channel end of the first-stage filter and the channel end of the second-stage filter; the optical amplitude and phase regulation and control elements in the first-stage filter and the second-stage filter are configured through electric signals, and programmable adjustment of the wavelength division multiplexer is achieved. According to the invention, the programmability of the photon integrated circuit can be effectively realized, and the application depth of the current on-chip optical system is greatly increased. By flexibly adjusting the target parameters of the optical chip, scenes of multi-target on-chip optical communication, high-performance calculation and the like can be realized.

The embodiment of the invention provides a content transmission method and electronic equipment, and the method comprises the steps: when two pieces of electronic equipment are close to each other, the first electronic equipment can display a transmission control interface, and a user can execute user operation on the transmission control interface; the transmission object in the first electronic device can be transmitted to the transmission object of the second electronic device, or the transmission object of the second electronic device can be transmitted to the transmission object of the first electronic device, so that content transmission between the two electronic devices is realized. Through the method, a user can realize content transmission between two electronic devices through a small amount of user operation, the operation complexity of cross-device content transmission is reduced, and the user experience is improved. In addition, the method supports two-way transmission of the content, the user can trigger and execute content transmission in different directions through different user operations, and great convenience is brought to the user.

The utility model relates to a two-way transmission industrial wireless remote controller with a one-to-two function. The two-way transmission industrial wireless remote controller comprises a transmitter part (10), two receiver parts (30), a transmitting antenna (20), a receiving antenna (40) and a crane part (50), the control part (11), the encoder (13) and the first bidirectional high-frequency module (14) of the transmitter (10) are electrically connected with the CPU (16) through the mainboard (12), and the first bidirectional high-frequency module (14) is connected with the directional antenna (20) through a coaxial cable. A second bidirectional high-frequency module (31) of the receiver (30) is connected with double decoders (321 / 322) and double CPUs (331 / 332), and the output end of the second bidirectional high-frequency module (31) controls the crane (50) through an emergency stop relay (34). The transmitter and the receiver realize real-time signal interaction through a bidirectional high-frequency module, and the hardware level is triggered to be automatically closed in case of abnormality; and the receiver adopts a double-decoder and double-CPU redundancy design, so that the power supply of the crane can be cut off when any fault occurs.