51results about How to "Solve transmission problems" patented technology

The invention discloses a three-dimensional induced polarization method advanced forecast system carried by an earth pressure balance shield, and a detection method. The system penetrates a needle-like electrode into soil for power supply and acquisition by use of a push electrode system carried by a cutter head and overcomes the difficulty of zero detection space in a conventional earth pressure balance shield. Detection currents are enabled to be distributed forwards by use of a shielding electrode, and a guniting device on the cutter head injects a high-resistance grouting material towards soil around the cutter head and the shield, and the difficulties of electromagnetic interference and conduction of currents by taking the shield as a good conductor are overcome. By use of automatic control in a whole process, multipath parallel acquisition and a rapid inversion means, the difficulty of small detection time is overcome. The method provided by the invention realizes detection of spherical weathering bodies, soft and hard layered strata, front full-section hard rocks, pebble layers and muddy layers by use of resistivity differences among geologic bodies; and detection of water containing condition of a water-rich layer by use of excitation polarization half failure is realized.

This invention relates to a digital camera real-time collecting system, which belongs to data communication and process technology in electronic technology. The system comprises digital camera, PCI image collect card and computer, wherein the core part is the PCI image card, which applies high-velocity PCI interface chip, combined with high-velocity cache buffer and CPLD logical controlling chip, realizing high-velocity data real-time communicating between digital camera and PCI bus; by the invention, the computer has no problem of collecting large quantity data rapidly.

The invention provides a basic electric quantity type energy-efficiency data collecting terminal which comprises a micro control unit MCU, a data storage module, a power supply module and an RS485 interface, wherein the data storage module and the micro control unit MCU are in bidirectional connection; the power supply module is used for supplying power to the micro control unit MCU; the RS485 interface, a micro-power wireless module and a PLC (Programmable Logic Controller) carrier communication module are respectively in bidirectional connection with the micro control unit MCU; a metering module and the micro control unit MCU are in bidirectional connection; and a three-path voltage sampling module and a three-path current sampling module are respectively in one-way connection with the metering module. The basic electric quantity type energy-efficiency data collecting terminal is ultrahigh in anti-interference property and high in reliability. The difficulties of basic electric quantity energy-efficiency data collection and transmission are overcome, and clustering type arrangement, various data type collections, various interface transmissions and the like, which are completely suitable for industrial on-site energy-efficiency basic electric quantity collection, can be realized. Besides, the terminal meets the requirements of different working conditions, for example, a communication mode can be micro-power wireless, PLC (programmable logic control) or other signal transmission modes. An expandable interface is left for realizing future intelligent control of a master station.

The invention discloses a single-motor-driven multi-gripper mechanism suitable for any gripper position. The mechanism is arranged on an XY plane movement mechanism and comprises a fixing frame and a plurality of gripper mechanisms; a driving motor which is provided with an encoder and can be used for teaching the rotating positions of the gripper mechanisms is arranged on the fixing frame; an output shaft of the driving motor is connected with a driving belt wheel in a driving mode; the driving belt wheel is connected with a driven belt wheel through a synchronous belt, the driven belt wheel can be connected to a driven belt wheel of the next stage through a synchronous belt, and each driven belt wheel is connected with a connecting shaft in a driving mode; and the connecting shafts are connected to the gripper mechanisms through connecting parts. According to the single-motor-driven multi-gripper mechanism, rotation of the multiple gripper mechanisms can be realized through one driving motor, and therefore the volume weight of the whole mechanism can be greatly reduced, the production cost can be reduced, the material grabbing performance of equipment can be improved, and in addition, the mechanism is driven by the synchronous belts, can be adapted to transmission connection between the gripper mechanisms at any distance and has the high practical value.

The invention discloses an interactive coupling multidimensional intelligent collapsed rockfall monitoring system and method, and belongs to the technical field of geological disaster prevention and control. The system specifically comprises a rockfall sensing system, a signal transmission system, an information processing system and a sound and light alarm system; the rockfall sensing system is used for intercepting the collapsed rockfalls and transmitting rockfall information to the information processing system through the signal transmission system, and the information processing system isused for issuing a rockfall early warning instruction to the sound and light alarm system and issuing the rockfall early warning instruction to the public in a sound and light alarm mode. The systemhas the function of LoRA local area ad-hoc network, the system is accurate in monitoring data, high in operational reliability, low in error rate and low in power consumption, and the problems of poorcommunication signals and insufficient lighting in dangerous areas such as alpine canyon areas are well solved.

The invention relates to a thermodynamic type energy-efficiency data acquisition terminal which comprises a micro-processing module MCU (micro-programmed control unit), a data storage module, a power module and an RS485 interface module, wherein the micro-processing module MCU is connected with a signal sampling module and comprises a chip clock module and an AD (analog-to-digital) conversion module; the data storage module is in two-way connection with the micro-processing module; the power module supplies power to the micro-processing module MCU; and the RS485 interface module, a micro-power wireless module and a PLC (programmable logic controller) carrier communication module are respectively in two-way connection with the micro-processing module MCU. The thermodynamic type energy-efficiency data acquisition terminal has very strong anti-interference performance and high reliability; the difficulties for acquiring and transmitting thermodynamic capacity energy-efficiency data are solved, and clustering type deployment, multi-data-type acquisition and multi-interface transmission and the like are realized and the thermodynamic type energy-efficiency data acquisition terminal is completely adapted to the acquisition for energy-efficiency thermodynamic capacity on industrial sites completely. In addition, the terminal also considers the requirements of different working environments, for example, a communication mode also can be micro-power wireless and PLC single transmission modes and the like, and an expansion interface is reserved for realizing intelligent control of a master station in the future.

The invention discloses a three-dimensional induced polarization method advanced forecast system carried by an earth pressure balance shield, and a detection method. The system penetrates a needle-like electrode into soil for power supply and acquisition by use of a push electrode system carried by a cutter head and overcomes the difficulty of zero detection space in a conventional earth pressure balance shield. Detection currents are enabled to be distributed forwards by use of a shielding electrode, and a guniting device on the cutter head injects a high-resistance grouting material towards soil around the cutter head and the shield, and the difficulties of electromagnetic interference and conduction of currents by taking the shield as a good conductor are overcome. By use of automatic control in a whole process, multipath parallel acquisition and a rapid inversion means, the difficulty of small detection time is overcome. The method provided by the invention realizes detection of spherical weathering bodies, soft and hard layered strata, front full-section hard rocks, pebble layers and muddy layers by use of resistivity differences among geologic bodies; and detection of water containing condition of a water-rich layer by use of excitation polarization half failure is realized.

A radar Doppler return signal data compression method comprises the steps that Fourier transform is firstly conducted on original data, the data are converted to frequency domain data from time domain data, the frequency domain data of signals are analyzed and processed, useful data in a dominant frequency band range are extracted from the frequency domain data, the data outside the dominant frequency band range are eliminated, and the extracted useful data are stored in a database; reductive processing is conducted on the frequency domain data, so that the length of the obtained frequency domain data is identical to that of the original data, inverse Fourier transform is further conducted, the signal data are converted into time domain data from the frequency domain data, and therefore the original data are recovered. According to the radar Doppler return signal data compression method, rapid Fourier transform and rapid inverse Fourier transform are adopted, the radar Doppler return signal data are compressed through analysis and processing of the radar Doppler return signals, the storage space is greatly reduced, the data transmission time is greatly shortened, the difficult problems existing in radar Doppler return signal data storage and transmission are solved, and the application prospect is good.

The invention relates to a heating antifreezing method and a device thereof, the invention is used for a mobile base station antenna to prevent ice hanging in winter, and the heating antifreezing method comprises: a high-power resistance connected with a direct current is arranged on an antenna backboard; direct current signals are fed in the antenna by a bias injector; the direct current signals are separated with radio-frequency signals in the antenna by a bias separator; the current of the direct current signals is led to the high-power resistance by a control switch; the antenna backboard is heated; then heat is uniformly radiated on an antenna cover by the antenna backboard; the antenna cover is heated; and the device used for realizing the method is composed of the bias injector, the bias separator, the control switch, a temperature sensor and a high-power resistance. Compared with the prior art, the heating antifreezing method and the device have the advantages of reasonable design proposal, reliable product performance, easy implementation and application, and the like, and can effectively solve the difficult problem that the mobile base station antenna affects normal transmission of communication lines because ice is hung on the surface of the antenna cover.

The invention provides transformer core manufacturing equipment, comprising a main machine body, wherein a feeding hole extending downward is formed in the end surface of the top of the main machine body, a primary stirring cavity is formed in the bottom wall of the feeding hole in a communication manner, a primary grinding mechanism is arranged in the primary stirring cavity, a left side cavity is formed in the main machine body at the top of the primary stirring cavity, a right side cavity is formed in the main machine body at the right side of the left side cavity, a vibrating screen cavityis formed in the main machine body at the bottom of the primary stirring cavity, a vibrating screen mechanism is arranged in the vibrating screen cavity, and a belt pulley cavity is formed in the main machine body at the bottom of the vibrating screen cavity, thus the invention designs the transformer core manufacturing equipment high in integration level. Compared with the traditional way that grinding and mixing processes are separate during manufacturing, the equipment provided by the invention realizes the effect that all the processes are integrated in one equipment, the integration level is improved, a manual step-by-step operation flow is shortened, and both manpower and cost are saved.

The invention relates to a metal grinding device used for processing metal and capable of automatically driving and conveniently adjusting size. The metal grinding device comprises a machine body, a connection rod, an electromagnetic box, a first motor, a coil, linkage rods, hairbrushes, a crawler belt, crawler belt rods, electromagnetic baffles and a storage box, wherein a movable plate is mounted on one side of the machine body; the outer side of a screw rod is wrapped with a bevel gear; the connection rod is mounted on the wall of one side of the movable plate; an extension rod is arrangedon one side of the inside of a support rod; the electromagnetic box is mounted on one side of the support rod; a belt is wound on one side of an electromagnetic block; the coil is wound on the outer side of a resistor; the linkage rods are mounted on the connection rod. According to the metal grinding device used for processing metal and capable of automatically driving and conveniently adjustingsize, the shape of the electromagnetic block is circular; the electromagnetic block is connected with the first motor through the belt; when the first motor rotates, the belt is used for simultaneously rotating the electromagnetic block; the rotation speed of the electromagnetic block is conveniently controlled; meanwhile, the pushing effect is achieved.

A coal gangue roller crusher in the type of a built-in motor includes a box body and two groups of crushing rollers which are arranged in the box body symmetrically. Each crushing roller is mainly composed of a teeth roller, a support wheel, a boat-shaped motor bracket, a supporting rod, a motor, a spring trough, an idle wheel, a driving wheel, a driving axle, a spring, a motor gear, a supporting axle, an idle axle, and a rolling wheel. The coal gangue roller crusher employs double-output explosion-proof motors, wherein two output terminals of the motor are both transmitted to the teeth rollers through gears; meanwhile, the other ends of the crushing rollers are matched with the teeth rollers through the support wheels; finally, the supporting rods, extension rods, the supporting axles and the like and the motor gears, the idle wheels, the driving wheels and the like are all installed on the boat-shaped motor brackets, the boat-shaped motor brackets are then fixed onto the box body. The coal gangue roller crusher saves space, simplifies power transmission during rolling processes, reduces cost of exploitation and transportation, provides low-cost raw materials for underground filling, and has strong innovativeness and wide practicability.

The invention discloses a mining load limiting type permanent magnetic transmission device which is arranged between a motor and a working machine. The mining load limiting type permanent magnetic transmission device comprises a mining load limiting type magnetic coupler, an input end rotary speed sensor, an output end rotary speed sensor, an input end infrared temperature sensor, an output end infrared temperature sensor and a PLC. The mining load limiting type permanent magnetic transmission device is applied to on-site practical production of a coal mine, a few problems occurred in traditional mechanical and hydraulic coupling transmission devices are solved, a practical transmission problem on site is well solved, transmission efficiency is high, soft start of a motor can be achieved, motor overload protection is achieved, bearing of volatility of load is achieved, real-time monitoring can be conducted on the operation state of equipment through a remote monitoring system, and fault diagnosis can be conducted on unusual conditions.

The invention discloses a jointed board automatic welder, a joint board automatic welder unit and a board power transmission mechanism. The joint board automatic welder unit comprises a plurality of jointed board automatic welders. The jointed board automatic welder comprises a machine table, a welding copper bar and two board power transmission mechanisms, wherein the welding copper bar is arranged on the machine table. The board power transmission mechanism comprises a motor reducer, a driving wheel and at least two driven wheels. All the driven wheels are respectively located at one side of the length direction of the driving wheel and are spaced along the length direction of the driving wheel; each driven wheel is connected with the driving wheel by a belt; and the motor reducer is connected with one end of the driving wheel so as to drive the driving wheel to rotate, and further, the belt connected with the driving wheel and the driven wheels are driven to rotate, so that a board located on each belt is transmitted along the belt. According to the board power transmission mechanism, not only can the automatic transmission of the board be realized but also the spacing adjustment of the unit cannot be influenced, and when the number of the machine tables is changed, the machine tables can be rapidly combined to meet the production requirements of special containers.

The invention relates to the field of network information security, in particular to a file compression encryption and decryption method and system based on dynamic passwords. The method comprises the steps that first, a compression encryption device compresses an original file into a compressed file; second, a first dynamic password is input into the compression encryption device and an encryption key is generated; third, the compression encryption device encrypts the compressed file through the encryption key. According to the file compression encryption and decryption method and system, the file is compressed firstly, the dynamic passwords are obtained through a dynamic token, then, the encryption key is obtained through the dynamic passwords, and the compressed file can be encrypted; an authentication server and the dynamic token synchronously generate dynamic passwords, the dynamic passwords are compared so that the compressed file can be decrypted. Due to the fact that authenticity and integrity of the compressed file in the transmission process are guaranteed in the whole decryption process through the dynamic passwords, non-repudiation of signature verification of the compressed file is guaranteed, the file can be managed more easily, operation can be convenient to perform, and both safety and usability of file management can be achieved.

This invention relates to a digital camera real-time collecting system, which belongs to data communication and process technology in electronic technology. The system comprises digital camera, PCI image collect card and computer, wherein the core part is the PCI image card, which applies high-velocity PCI interface chip, combined with high-velocity cache buffer and CPLD logical controlling chip, realizing high-velocity data real-time communicating between digital camera and PCI bus; by the invention, the computer has no problem of collecting large quantity data rapidly.

The invention provides a transmission mechanism of a vacuum circuit breaker. The vacuum circuit breaker comprises a main frame (1), a plurality of vacuum arc-extinguishing chambers (2) are mounted on the main frame (1), and the transmission mechanism comprises a main pull rod (3), pull rods (4) on the lower portions of the vacuum arc-extinguishing chambers (2) are movably connected with connecting rods (5), the connecting rods (5) are movably connected with a long pull rod (6), and one end of the pull rod (6) is connected with the main pull rod (3). The transmission mechanism of the vacuum circuit breaker is a connecting rod type transmission mechanism, and the problem of transmission when the vacuum breaker is laterally mounted is simply and conveniently solved. Meanwhile, the transmission mechanism is synchronous and coherent in brake separating actions, and stability is good when the vacuum arc-extinguishing chambers are operated. Besides, the transmission mechanism has the advantages of simple structure, convenience in processing, high production efficiency, convenience in mounting, low cost and the like.

The invention discloses a radar echo video data vectorization processing method, system and device, and the method comprises the following steps of calculating a video threshold, carrying out binarization processing on the video data, then splitting and splicing, searching a data segment of each direction, storing the starting pixel and the ending pixel of the data segment, forming a polygon with the data segments in a plurality of consecutive orientations; performing data intersection judgment on the latest data segments of the polygons and a current azimuth data segment set, if an intersection exists, splicing the current azimuth data segments onto the corresponding polygons, and if the intersection does not exist, storing the current azimuth data segments into a completed polygon set; traversing the whole radar video azimuth data; performing contour analysis on the polygons, and searching the inflection points of each polygon; calculating the longitude and latitude of each inflection point of the polygon; and adopting a longitude and latitude mode for transmission and carrying out multi-radar video fusion. According to the method, the data volume is reduced, and the problem of vectorization delay of the existing radar image video is effectively solved.

The invention provides a lifting platform for airplane vertical fin overhauling. The lifting platform comprises a lower-layer platform. A movable work ladder is arranged on the top of the lower-layerplatform. A well frame structure for installing an upper-layer platform lifting device is fixed to the side edge of the top of the lower-layer platform. An upper-layer platform of a cantilever structure is fixed to the side wall of the upper-layer platform lifting device. A locking mechanism used for locking the upper-layer platform lifting device and the well frame structure is arranged between the upper-layer platform lifting device and the well frame structure. The lifting platform can be used for overhauling large airplane tail wings, the lifting platform can be conveniently controlled toascend and descend, so that different overhauling heights are achieved, the tail wing overhauling usage requirement of the lifting platform is met, the overhauling safety is guaranteed, meanwhile, thelabor intensity of operators is greatly lowered, and the work efficiency is improved.

The invention discloses a non-direct-connection network communication method based on HTTP. The method comprises the following steps: sending a data demand through a data demand node on a mobile terminal, establishing a connection by utilizing an http protocol, calculating a historical fastest communication distance through a communication historical record, sending the historical fastest communication distance to a first node on a path, carrying out proxy forwarding by the first node, and carrying out proxy forwarding in sequence; the Websocket is used for whole network broadcasting, and a target node is required to be actively connected; the cross-network segment, cross-network and cross-regional network data P2P connection and transmission of the mobile terminal are realized, and the application of the block chain technology on the mobile terminal is realized.

The invention discloses an integrated equipment cabinet lock with a wireless sensing handle. The integrated equipment cabinet lock comprises a base, a handle, an identity verification module, a main control module, a transmission body, a steel bolt, a lock cylinder and an electromagnetic spring bolt, wherein a handle clamping groove into which the handle is embedded is formed in the outer side surface of the base; the transmission body is movably connected with the base; the outer end of the transmission body is movably connected with the handle; the inner end of the transmission body is fixedly connected with the steel bolt; the lock cylinder is installed on the handle; the main control module and the electromagnetic spring bolt are installed on the inner side of the base; the identity verification module is arranged in the handle; the main control power supply of the main control module is connected with the identity verification module in the handle through magnetic resonance in a wireless power supply manner; and the identity verification module is connected with the main control module in a wireless communication manner. The wireless power supply connection is realized between the handle and the base by utilizing a magnetic resonance technology, the identity verification module is arranged in the handle, and wireless communication connection is adopted between the identity verification module and an entrance guard module, thus the constraint and the hidden danger of connection wires are avoided, so that the difficult problems that the handle of an intelligent equipment cabinet lock cannot be powered and transmitted for a long time are thoroughly solved, the dustproof and dustproof effects are good, the application range is wide, and the management on the intelligent equipment cabinet lock is prompted to a new level.

The invention discloses a transmission method of a false twist compact spinning device. The false twist compact spinning device adopts a friction belt as a false twisting device, the friction belt iswound around a guide wheel, the axis of the guide wheel is perpendicular to that of a roller, the false twist compact spinning device adopts the front roller as a transmission shaft during transmission, the front roller drives a friction plate of the false twist compact spinning device in a friction manner through a friction ring, the friction ring and the friction plate transmit rotation of the front roller in a right-angled friction transmission manner to drive the guide wheel with the axis perpendicular to that of the front roller in the false twist compact spinning device, the friction belt mounted on the guide wheel in a sleeving manner is rotated along with the rotation of the guide wheel, the friction belt generates the movement relative to the perpendicular direction of fiber strands, and the twisting effect of friction false twist is achieved for the fiber strands between the front roller and a lead-out roller.

The invention relates to an automatic differential pressure balance type valve position indicator, which is mounted on a hydraulic circuit of a valve driver and comprises a valve seat 21, a metering gear pair 22, a meter head seat 23 and a meter head 24. The automatic differential pressure balance type valve position indicator is characterized in that the metering gear pair 22 consists of a pair of metering gears 42, a first gear bushing 43, a second gear bushing 44 and a metering gear seat 41, wherein the first gear bushing 43 and the second gear bushing 44 are arranged at the axle centers of the metering gears; pressure relief through holes are formed in tooth roots of each metering gear 42 in an equidistantly-staggered manner; a pressure relief passage is formed after the first gear bushing 43 and one metering gear 42 are assembled, and after the second gear bushing 44 and the other metering gear 42 are assembled, not only is an oil draining passage formed, but also the mechanical transmission without transmission shafts, fixing shafts and bearings is realized; and one end, where gear oil chambers are located, of the metering gear seat 41 is designed into an outline of two-circle intersecting, so that the smoothness of operation of the pair of metering gears 42 in two intersecting circles is favored.

The invention discloses an automatic valve cover ear milling machine. The machine is characterized in that the machine comprises a fixed seat and an overturning rack, the overturning rack is bidirectionally overturns on the fixed seat at 180DEG in a vertical direction and is promoted by an overturning mechanism, the overturned overturning rack is locked by an overturning locking mechanism, the overturning rack is provided with an upper workpiece positioning hole, a lower workpiece positioning hole, an upper workpiece clamping block and a lower workpiece clamping block, the upper portion of the fixed seat is provided with a clamping operating mechanism and a pre-positioning compaction mechanism, the lower portion of the fixed seat is provided with a milling power mechanism, the pre-positioning compaction mechanism pre-positions and compacts the workpiece in the upper workpiece positioning hole when the overturning rack is in an upward turning or downward turning position, the clamping operating mechanism operates the upper workpiece clamping block to act in order to clamp the workpiece in the upper workpiece positioning hole, and after the milling power mechanism is promoted by an upper swinging mechanism, two side ear milling of the workpiece in the lower workpiece positioning hole is carried out by a disk miller. The automatic valve cover ear milling machine can realize the automatic milling processing of two side ears of the valve cover, substantially improves the work efficiency, and improves the processing precision.

The invention provides an energy-saving sweeper based on the technology of baffle-skirt-type conveyor belts for garbage conveying. The sweeper comprises a vehicle chassis and a garbage sweeping assembly; the garbage sweeping assembly comprises main brushes, universal wheels, middle side brushes, main brush barrels and garbage conveying mechanisms, wherein the garbage conveying mechanisms comprisedriven rollers, the conveyor belts and electric rollers, the universal wheels are connected with push rods, the upper ends of the push rods are connected with main frames of the garbage sweeping assemblies, and the main frames are movably connected with the vehicle chassis through rotating hinges of conveying barrels. The sweeper has the advantages that the energy-saving new-energy sweeper is developed in a garbage conveying mode with low power, high efficiency and low energy consumption.

The invention discloses an industrial processing technology. The rice huller comprises a direct-drive motor connected with a rubber roller, the direct-drive motor is provided with a servo control system, a connecting part is arranged between the direct-drive motor and the rubber roller and used for connecting a rotor of the direct-drive motor and the rubber roller, and a roller cylinder of the rubber roller and the axis of a driving shaft of the direct-drive motor are concentric. The rice huller is driven by the direct-drive motor, the problems of transmission and positioning are solved, transmission chains are reduced, the transmission structure is simplified, the linear speed of the roller is conveniently and accurately controlled, the hulling quality is guaranteed, and the abrasion speed of the rubber roller is slowed down.

A coal gangue roller crusher in the type of a built-in motor includes a box body and two groups of crushing rollers which are arranged in the box body symmetrically. Each crushing roller is mainly composed of a teeth roller, a support wheel, a boat-shaped motor bracket, a supporting rod, a motor, a spring trough, an idle wheel, a driving wheel, a driving axle, a spring, a motor gear, a supporting axle, an idle axle, and a rolling wheel. The coal gangue roller crusher employs double-output explosion-proof motors, wherein two output terminals of the motor are both transmitted to the teeth rollers through gears; meanwhile, the other ends of the crushing rollers are matched with the teeth rollers through the support wheels; finally, the supporting rods, extension rods, the supporting axles and the like and the motor gears, the idle wheels, the driving wheels and the like are all installed on the boat-shaped motor brackets, the boat-shaped motor brackets are then fixed onto the box body. The coal gangue roller crusher saves space, simplifies power transmission during rolling processes, reduces cost of exploitation and transportation, provides low-cost raw materials for underground filling, and has strong innovativeness and wide practicability.

The invention discloses an integrated equipment cabinet lock with a wireless sensing handle. The integrated equipment cabinet lock comprises a base, a handle, an identity verification module, a main control module, a transmission body, a steel bolt, a lock cylinder and an electromagnetic spring bolt, wherein a handle clamping groove into which the handle is embedded is formed in the outer side surface of the base; the transmission body is movably connected with the base; the outer end of the transmission body is movably connected with the handle; the inner end of the transmission body is fixedly connected with the steel bolt; the lock cylinder is installed on the handle; the main control module and the electromagnetic spring bolt are installed on the inner side of the base; the identity verification module is arranged in the handle; the main control power supply of the main control module is connected with the identity verification module in the handle through magnetic resonance in a wireless power supply manner; and the identity verification module is connected with the main control module in a wireless communication manner. The wireless power supply connection is realized between the handle and the base by utilizing a magnetic resonance technology, the identity verification module is arranged in the handle, and wireless communication connection is adopted between the identity verification module and an entrance guard module, thus the constraint and the hidden danger of connection wires are avoided, so that the difficult problems that the handle of an intelligent equipment cabinet lock cannot be powered and transmitted for a long time are thoroughly solved, the dustproof and dustproof effects are good, the application range is wide, and the management on the intelligent equipment cabinet lock is prompted to a new level.

The invention relates to a safe monitoring system for train running comprises an inner monitoring system of a train carriage, and a ground, wherein, the inner monitoring system of a train carriage is divided into a passenger carrying carriage, a control carriage and a carriage outside; and the ground information monitoring system on the ground is divided into a total station, a substation and a public security department. A coaxial cable is used as a main trunk circuit. The safe monitoring system for train running, an environmental detector, a camera, a monitoring head, a control module of light introducing quantity, and an emergency communication module are connected in series in a video multiplexing mode. In addition, information transferred by trains and the ground uses an h.264 or D1 compression form.

A metal air chamber driving grabbing device, the air chamber housing is divided into two sub-air chambers, the outer end panels of the air chamber are installed in the air chamber housing and on both sides of the middle fixed plate through the air film, and the outer end panels of the air chamber are The outer side of the panel is connected with an "H"-shaped flange connecting rod and a "T"-shaped slider; the upper end of the middle fixed plate has a longitudinal hole, and the middle part has a two-way hole, and the two-way hole is connected with the central through hole of the air film . The method of use is: install the driving grabbing device in a metal core, insert multiple such metal cores into corresponding multiple preheated cylinder liners at the same time; when the driving grabbing device is inflated, the "T" The sliding block pushes the inner side of the cylinder liner outward, locates and expands the fixed cylinder liner, the metal core returns, exits the liner heater, multiple metal cores tilt downward at the same time, and the upside-down cylinder liner is inserted into the cavity, and finally Close the mold and die-cast the blank; on the contrary, the expansion and tightness of the inner wall of the cylinder liner are released, and the metal core is drawn and the mold is opened. The invention is easy to operate and use, and improves work efficiency.