79results about How to "Does not affect transmission efficiency" patented technology

A signal-to-noise radio estimation method based on response feedback control signaling comprises the following steps: A, calculating the average number of transmissions; B, estimating the signal-to-noise radio; C, outputting the result of signal-to-noise radio estimation. For the information like the maximum number of transmissions set by a data frame to be transmitted, accurate SNR estimation result is calculated from ACK-NAK response control information fed back by a receiving terminal by means of parameters such as coding rate and code length of a transmitting terminal in a hybrid automatic repeat request HARQ system; the method is applicable to a grouped data communication system of the hybrid automatic repeat request HARQ system; the signal-to-noise radio estimation of the method is accurate; moreover, without increasing the complicatedness of the realization of the currently applied grouped data communication system of the HARQ system and affecting the grouped data transmission efficiency, the method can effectively meet the requirements of self-adapting transmission technology on SNR estimation.

The invention discloses a method, system and device for detecting network intercept of a direct-connecting link and network equipment. The method comprises the following steps: a first port of first equipment and a second port of second equipment are connected through the direct-connecting link, and the first port is controlled to trigger the link to jitter according to the set link jitter time after the first port is detected to be in a linkup state; whether the second port is subjected to link jitter is monitored; if yes, intermediate equipment does not exist between the first equipment and the second equipment; and if no, the intermediate equipment exists between the first equipment and the second equipment. By detecting whether the intermediate equipment exists or not by link jitter, the invention prevents the transmitted massages from being intercepted, and the invention is simple and convenient to realize and does not affect the massage transmitting efficiency.

The invention relates to a lubricating system for an electronic continuously variable transmission of an electric vehicle. The lubricating system comprises lubricating oil and an oil pump, the lubricating oil is arranged in a transmission case, a differential is positioned in the lubricating oil, the oil pump is respectively connected with the lubricating oil and a spindle through pipelines, and a plurality of oil holes are radially arranged on the spindle. Preferably, the oil holes include first oil holes and second oil holes, and a planetary structure is positioned among the first oil holes and the second oil holes. The oil pump is arranged outside the transmission case, placed on the transmission case and connected with the lubricating oil through a filter pipeline, an overflow valve is parallelly connected with the pipeline for connecting the oil pump with the spindle, both an oil retaining rib and an oil guide groove are mounted on the inner wall of the transmission case, and the oil retaining rib is communicated with a position needing lubricating through fluids of the oil guide groove. The lubricating system is ingenious in design, simple in structure and suitable for large-scale popularization and use, can be matched with the structure of the electronic continuously variable transmission, and has the advantages that lubricating effects are fine, transmission efficiency is not affected, and the weight of the transmission is not increased.

The invention discloses an office system for preventing data from being divulged. The office system comprises a local area network consisting of a plurality of computers, mobile storage equipment, a universal serial bus (USB) encryption and decryption bridge connector and USB key equipment, wherein one end of the USB encryption and decryption bridge connector is connected with a south bridge chipon a mainboard of the computer and the other end of the USB encryption and decryption bridge connector is used as a main interface of exposed USB storage equipment; the USB encryption and decryption bridge connector further comprises a USB device 1 connected with the south bridge of the computer, a USB host, a data storage area, a first encryption and decryption module, a first flash memory module and a USB data transmission management module; and the USB key equipment further comprises a USB device 2, a second encryption and decryption module and a second flash memory module. In the office system, working areas can be set randomly, rights management efficiency is improved and data in the working areas can be effectively prevented from being divulged.

The invention discloses a data leakage prevention method for an office system; the office system comprises a local area network, a removable storage device, a universal serial bus (USB) encryption and decryption bridge and a USB key device, wherein the local area network comprises a plurality of computers; one end of the USB encryption and decryption bridge is connected with a south bridge chip on a computer mainboard, and the other end of the USB encryption and decryption bridge is taken as a main interface for an exposed USB storage device; the USB encryption and decryption bridge comprises a USB encryption and decryption bridge function management module, wherein the USB encryption and decryption bridge function management module is located between the USB encryption and decryption bridge and the USB key device and used for responding an order of the USB key device, thereby configuring functions of the USB encryption and decryption bridge; the USB encryption and decryption bridge further comprises a first USB slave interface module, a USB main interface module, a data storage area, a first encryption and decryption module, a first flash storage module and a USB data transmission management module; and the USB key device further comprises a second USB slave interface module, a second encryption and decryption module and a second flash storage module. According to the data leakage prevention method, a working area can be set freely, thereby facilitating authority management efficiency and effectively preventing leakage of data in the working area.

A wired and wireless communication method and apparatus for reducing a PAPR Peak to Average Power Ratio in an OFDM Orthogonal Frequency Division Multiplexing system. A transmitter of the OFDM system designates, as a coset leader, a vector capable of minimizing a PAPR in a general standard array of n, k linear block codes and transmits a sequence having a minimum PAPR by adding each coset leader to an n-bit codeword corresponding to k-bit information and producing U<=2n-k number of vectors. Then, a receiver of the OFDM system can easily recover an original transmission signal using a syndrome of a received vector if the receiver identifies information of the syndrome and the coset leader.

The invention discloses an office system for improving data security; the office system comprises a local area network, a removable storage device, a universal serial bus (USB) encryption and decryption bridge and a USB key device, wherein the local area network comprises a plurality of computers; one end of the USB encryption and decryption bridge is connected with a south bridge chip on a computer mainboard, and the other end of the USB encryption and decryption bridge is taken as a main interface for an exposed USB storage device; the USB encryption and decryption bridge comprises a USB encryption and decryption bridge function management module, wherein the USB encryption and decryption bridge function management module is located between the USB encryption and decryption bridge and the USB key device and used for responding an instruction of the USB key device, thereby configuring functions of the USB encryption and decryption bridge; the USB encryption and decryption bridge further comprises a first USB slave interface module, a USB main interface module, a data storage area, a first encryption and decryption module, a first flash storage module and a USB data transmission management module; and the USB key device further comprises a second USB slave interface module, a second encryption and decryption module and a second flash storage module. According to the office system, a working area can be set freely, thereby facilitating authority management efficiency and effectively preventing leakage of the data in the working area.

The invention provides a spiral elevator based on a planet roller screw, and belongs to the technical field of spiral elevators. The spiral elevator based on the planet roller screw comprises a box body, a worm wheel and worm mechanism, a planet roller screw mechanism, a cylindrical roller thrust bearing, an oil scraping plate, a bearing end cover, related connecting pieces and the like. The planet roller screw mechanism is formed by a screw rod, a pin roller, a nut, an inner gear ring, a holder and a holder pressing plate; the nut and a worm wheel structure are integrated; and the oil scraping plate and the screw rod are in sliding fit, so that the sealing performance of the spiral elevator is ensured. During work, a worm shaft transmits the motor output torque to a worm wheel and the nutso as to drive the pin roller to move planetarily without axial displacement, so that the screw rod further lifts up and lowers down. According to the spiral elevator based on the planet roller screwprovided by the invention, a core transmission part is a planet roller screw structure with multiple screw-thread contact points, so that a rated dynamic load and a rated static load are greatly improved, and the spiral elevator based on the planet roller screw has the advantages of high shock resistance, stability in transmission, high carrying capacity, high transmission accuracy, high transmission efficiency, long service life and the like.

The invention provides a data transmitting method and device. The method includes: obtaining a bit sequence of data to be transmitted; and continuously transmitting a waveform sequence corresponding to bits in the bit sequence according to the bit sequence of the data to be transmitted, wherein a first waveform sequence represents a first data bit, a second waveform sequence and a third waveform sequence represents a second data bit separately, the first data bit is either 1 or 0, the second data bit is the other one of 1 and 0, and when at least two continuously transmitted bits are the second data bits, the waveform sequence corresponding to the first bit in the at least two consecutively transmitted bits is the second waveform sequence, and the waveform sequences corresponding to the second bit and the subsequent bits are the third waveform sequences. By using the data transmitting method, an apparatus can acquire as much electric energy as possible and improve power supply efficiency without affecting data transmission efficiency.

The invention discloses a gearbox and belongs to the technical field of gearbox lubrication. The gearbox provided by the invention comprises a lubricating oil pool formed in the inner bottom of the gearbox and oil stirring boxes. Each oil stirring box comprises an oil storage cavity, wherein an oil excavation port and oil outlets are formed in the oil storage cavity. The oil stirring boxes are arranged on a rotating component inside the gearbox and can be configured to be immersed in the lubricating oil pool as the rotating component rotates. According to the gearbox provided by the invention,by arranging the oil stirring boxes on the rotating component, lubricating oil in the lubricating oil pool is transported to a high position by means of the oil stirring boxes, and accordingly, the purpose that the lubricating effect of a lubricating point of the gearbox is improved on the premise that the transmission efficiency of the gearbox is not affected can be achieved.

The invention relates to a data file transmission method. An initial key is firstly built between a transmitting end and a receiving end, and then, the data file is blocked for transmission. Each block uses a different key for encryption, data file transmission is thus high in safety, and the data file transmission efficiency is not influenced.

The invention provides a data receiving method and device. The method comprises the following steps: detecting the level change of a receive port; and determining N continuously transmitted waveform sequences according to the level change and characteristics of the waveform sequences, and determining the bit sequence of received data according to the N continuously transmitted waveform sequences, wherein a first waveform sequence represents one of bit 1 and bit 0, and a second wave sequence and a third waveform sequence represent the other one of the bit 1 and bit 0 respectively. Through the data receiving method provided by the invention, equipment can acquire as much electric energy as possible, and improve the power supply efficiency without affecting the data transmission efficiency.

The invention provides a data receiving method and device, wherein the method comprises: detecting a level change of a receiving port; determining N consecutively transmitted waveform sequences according to the level change and the characteristics of the waveform sequences, and determining, according to the N consecutively transmitted waveform sequences, the bit sequence of received data, wherein a first waveform sequence represents either 1 or 0, and a second waveform sequence and a third waveform sequence represent the other one of the 1 and 0 separately. By using the data receiving method, an apparatus can acquire as much electric energy as possible and improve power supply efficiency without affecting data transmission efficiency.

The invention discloses a fixing method of an induction coil. A plurality of strands of wires are sequentially wound on a cylindrical plastic shell to obtain an induction coil with certain parameters.The induction coil is fixed by using a modified acrylate adhesive according to certain steps. As a result, when the induction coil is in a horizontal placement state and the outside environment of the induction coil is shaken, the appearance and various parameters of the induction coil are not changed at all. The induction coil can be used for manufacturing the reader-writer of an underground pipeline electronic detector. After being fixed, the induction coil can improve the stability and the detection efficiency of the detector.

The invention provides a data packet packaged by a rule component. The data packet comprises transmitted data and a rule component for transmitting data, the rule component comprises a transmission network identifier, a transmission protocol, a source address, a user, a destination address, a header identifier and an end identifier of the data; the transmission network identifier is used for determining a network type of the transmitted data; the source address is used for generating a device address of the data; the destination address is the transmission destination address of the data; theuser generates a device type of the data for the source address; different users have different operation permissions; the header identifier is an actual starting mark of the data; and the end identifier is an actual end mark of the data. The invention further discloses a transmission method of the data packet packaged by the rule component. The problem of low network data transmission security inthe prior art is solved.

A speed reducer with Mg-alloy gears for electric child car features that the external toothed ring of the 1st thick gear is engaged with the internal toothed ring of the 1st thin gear and the external toothed ring of the 2nd gear, the external toothed ring of the 2nd thick gear is engaged with the internal toothed ring of the 2nd gear and the external toothed ring of the 3rd thin gear, and the internal toothed ring of the 3rd thin gear is engaged with the gear shaft. Its manufacture technology includes such steps as blanking, cold punch of thin gears, hot punch of thick gears, hot squeeze of gear shaft and surface treatment.

The invention provides a wafer position identification system and method. The system comprises a wafer bearing module, a light source module, and an optical detection module, the wafer bearing modulecomprises a plurality of storage positions which are overlapped along a vertical direction and is provided with an opening, the light source module is arranged at one side of the opening and is used for emitting the parallel detection light, and the optical detection module is arranged at one side, opposite to the light source module, of the opening and is used for at least acquiring an image of awafer when the wafer is conveyed to pass through the opening, and judging whether the conveying position of the wafer meets a control requirement or not according to the acquired image. By detectingthe conveying position of the wafer on line and in time in the wafer conveying process, the problems that the wafer with the inaccurate conveying position is conveyed to the storage position, and consequently the wafer is scratched, laminated or inclined, can be solved, and the yield of the wafer is increased. Moreover, the system and the method operate during the conveying process, so that the conveying efficiency is not influenced.

The invention discloses a network file transmission method and device and a computer readable storage medium. The method comprises the steps that when webpage login information of an authorized user is detected by the BMC, a user interface corresponding to the baseboard management controller is displayed, and the user uploads a file to be transmitted to a storage space of the BMC through the interface. The BMC sends a storage file transmission instruction to the basic input and output system, and sets a transmission destination end of the to-be-transmitted file through a function setting page of the basic input and output system. The to-be-transmitted file is read through the basic input / output system and written into the transmission destination end, so that any type of network file can be remotely transmitted on the basis of being separated from the OS, and the transmission efficiency of the network file is not influenced.

A mechanical energy electric-power car can carry people and materials, the transmission shaft of car, shaft, wheel are used as rotors, and the generator is installed on the transmission shaft, shaft and wheels, utilizes mechanical energy to generate electricity when the car is running, stores the mechanical energy and directly drives this car, which overcomes shortcomings of present various power cars, concentrates their advantages with low cost of manufacture and utilization, and is economical and practical, which can be popularized soon: its starting and the speed-raising are fast, the climbing capacity is strong, generating electricity by the mechanical energy during its operation, and be used for driving, external energy is not used; It makes the power of the various transportation and communications in the world today going into the brand-new epoch of mechanical motility.

The invention relates to the technical field of communication, in particular to a method and system for converting multi-channel parallel CAN into Ethernet. The method comprises the following steps: CAN bus communication is processed through a plurality of control chips, each CAN bus is connected with 20 monitoring nodes, the control chips adopt SPI interfaces to achieve CAN bus grid connection, aprogrammable logic device is selected to achieve three-way SPI grid connection design, and a parallel port bus is adopted at a data output end to communicate with an upper-level chip. According to the invention, 12 CAN buses are adopted to work in parallel, there is no product capable of collecting the CAN buses at the same time on the market, all data is processed at a board level, and the efficiency is very high; data are transmitted upwards, are transmitted upwards through 125kbps CAN, 4Mbps SPI and 30Mbps parallel ports and finally converge into the Ethernet, the bottom layer CAN transmission rate is the bottleneck of the speed, and the upper layer protocol conversion does not influence the transmission efficiency of data streams.

Provided are a network configuration method, device, equipment and system, the method comprising: a distribution network device generates a data packet composed of a packet header and a packet body, the packet header comprising a destination MAC address, the destination MAC address being filled with network configuration information of a router, and the packet body being filled with data of a preset length; and the distribution network equipment sends the generated data packet to the to-be-accessed equipment to the network. And the to-be-accessed equipment determines that the received data packet is a distribution network data packet according to the data with the preset length, and accesses the router according to the network configuration information obtained from the distribution network data packet. The length of the data filling the packet body of the distribution network data packet is obviously different from the length of the data contained in the packet body of the non-distribution network data packet, so the to-be-accessed equipment can distinguish the distribution network data packet, and the data used for identifying the distribution network data packet is added into the packet body, so that the destination MAC address for transmitting the network configuration information is not occupied, and the transmission efficiency of the network configuration information is ensured.

The invention belongs to the field of power machine speed changers, and particularly relates to a stepless speed changing device with a speed adjusting component arranged inside. The speed adjusting component is arranged in a conical disc shaft sleeve, so that the axial distance of the stepless speed changing device is reduced; and compared with arrangement of the speed adjusting component outsidethe conical disc shaft sleeve, cost is reduced, and efficiency is improved.

The embodiment of the invention discloses a data transmission circuit and method. The data transmission circuit comprises a data sending circuit and a data receiving circuit, wherein the data sendingcircuit is coupled with the data receiving circuit; the data sending circuit is used for determining a target rectangular wave parameter corresponding to target data according to a corresponding relation between the data and the rectangular wave parameter under the condition that a data sending instruction is received, and sending a rectangular wave matched with the target rectangular wave parameter to the data receiving circuit; and the data sending instruction comprises the target data; and the data receiving circuit is used for receiving the rectangular wave, determining the target rectangular wave parameter according to the rectangular wave, and determining the target data according to the corresponding relationship between the data and the rectangular wave parameter. According to theembodiment of the invention, the data can be sent to the data receiving circuit in a rectangular wave mode through the data sending circuit, and the circuit structure is simplified, and the stabilityand reliability of the whole device are improved.

The invention discloses a clock sampling self-adaption adjusting method comprises the following steps: input data are subjected to time delay operation and sampling operation respectively by main and standby monitoring devices according to preset initial time-delay amounts; in a time window, the initial time-delay amounts are adjusted; every time when the initial time-delay amounts are adjusted, main and standby sampling result sequences formed by sampling output values which are obtained after the input data are sampled by the main and standby monitoring devices are output to a time-delay amount adjusting device; the time-delay amount adjusting device controls switch of the main and standby monitoring devices according to the main and standby sampling result sequences, and time-delay amounts are respectively configured for the switched main and standby monitoring devices. The invention also provides a corresponding system. The method and the system provided by the invention are characterized in that data are monitored by the main and standby monitoring devices, switch between the main and standby monitoring devices can be utilized when time delay changes quickly, a time sequence can be recovered to a normal interval in a correct and fast manner, a transmission passageway does not need to be occupied, and transmission efficiency cannot be affected.

The invention discloses an improved type synchronous mechanism and a hybrid power transmission thereof. The synchronous mechanism comprises a charging gear engagement tooth, an EV gear driving gear, acharging gear synchronous ring, a motor transmission gear, a synchronous gear sleeve, an EV gear engagement tooth and an EV gear synchronous ring; the charging gear engagement tooth and the EV gear driving gear are oppositely arranged, the charging gear synchronous ring, the motor transmission gear and the synchronous gear sleeve are sequentially connected to the charging gear engagement tooth ina sleeving manner, and the EV gear engagement tooth and the EV gear synchronous ring are sequentially connected to the EV gear driving gear in a sleeving manner. On the basis of an original mechanical automatic transmission structure, a driving motor is connected in ingeniously; a synchronous mechanism controls the transmission direction of motor power, engine power and motor power can be independently controlled in the transmission process, mutual interference is avoided, and meanwhile, in the needing process, mutual compensating is achieved.

The invention provides a conveying belt device with a cooling function. The device comprises a main frame body and a secondary frame body; the rear end of the secondary frame body is assembled on themain frame body in a hinged mode via a first hinging shaft; a first driving gear and a first driven gear are installed at two ends of the main frame body via bearings; a first limiting gear and a second limiting gear are assembled at the upper ends of supporting legs of the main frame body via bearings; a first conveying belt body is assembled on the first driving gear, the first driven gear, thefirst limiting gear and the second limiting gear; and a second driving gear and a second driven gear are arranged at two ends of the secondary frame body. According to the device, six groups of different structures are arranged with the same function of facilitating heat dissipation and cooling of materials; the structural innovation points are good and the practicability is high; and under a condition of no impact on material conveying efficiency, the material cooling effect is greatly improved, and the device is different to a great extent from existing conveying belt devices with a coolingfunction.

The invention discloses a method and a device for labelling characteristic information of a video code stream and a method and a device for detecting the characteristic information of the video code stream. For each macroblock of the video code stream, the method for labelling the characteristic information comprises the following steps of: according to the predetermined characteristic of the macroblock, generating the corresponding characteristic information; searching and recording a specific coefficient of each sub-block of the macroblock; and according to a predetermined rule and the characteristic information, performing characteristic information labelling on the specific coefficient of each sub-block. For each macroblock of the video code stream, the method for detecting the characteristic information comprises the following steps of: acquiring first characteristic information of the macroblock; searching and recording a specific coefficient of each sub-block of the macroblock;according to a predetermined rule, performing second characteristic information extraction processing on the specific coefficient of each sub-block; and detecting whether the first characteristic information is the same as the second characteristic information. The invention has good detection rate and does not add extra cost in the video code stream detection.

A mechanical group for cleaning gravel ballast from a track (8), the mechanical group is composed of a first machine (2) with a cleaning chain (9) for cleaning the crushed ballast and along the working direction (3) The second machine (4) is composed of a receiving device (12) for collecting the cleaned crushed stone ballast stored on the track (8) in the front. A third machine (6) is arranged in front of the second machine (4), which has two ballast excavation devices (5) on the side slope of the ballast bed, and is used to collect the broken stones located in the side slope area of ​​the gravel ballast bed. stone ballast, and a second screening device (15) is also arranged in front of the second machine (4), which is used for clearing and screening the collected crushed stone ballast.

The invention discloses an office system for improving data security; the office system comprises a local area network, a removable storage device, a universal serial bus (USB) encryption and decryption bridge and a USB key device, wherein the local area network comprises a plurality of computers; one end of the USB encryption and decryption bridge is connected with a south bridge chip on a computer mainboard, and the other end of the USB encryption and decryption bridge is taken as a main interface for an exposed USB storage device; the USB encryption and decryption bridge comprises a USB encryption and decryption bridge function management module, wherein the USB encryption and decryption bridge function management module is located between the USB encryption and decryption bridge and the USB key device and used for responding an instruction of the USB key device, thereby configuring functions of the USB encryption and decryption bridge; the USB encryption and decryption bridge further comprises a first USB slave interface module, a USB main interface module, a data storage area, a first encryption and decryption module, a first flash storage module and a USB data transmission management module; and the USB key device further comprises a second USB slave interface module, a second encryption and decryption module and a second flash storage module. According to the office system, a working area can be set freely, thereby facilitating authority management efficiency and effectively preventing leakage of the data in the working area.