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44results about How to "Reduce connection complexity" patented technology

Digital control system controlled based on computer online or off line method, and operation method

A method for operating digital-control system based on on-line or off-line control of computer includes erecting digital-control software on computer to integrate product data management information and utilizing digital-control software to work out digital control program to be transmitted to movement controller, using controller to make actuator and motor to drive digital controlled machine to process parts according to digital-control program under off-line mode and carrying out direct-control on movement controller by computer under on-line mode. The system used for realizing said method is also disclosed.
Owner:CHUANGYI TECH DEV

Display system and display screen controller

The embodiment of the invention discloses a display system, which comprises a display screen and a single display screen controller, and is characterized in that the single display screen controller is provided with multiple video input interfaces and multiple video output interfaces, and the display is connected with the multiple video output interfaces; and the single display screen controller is configured to select at least part of input sources from the multiple input sources inputted by the multiple video input interfaces, perform image data processing on the at least part of the input sources and output processed image data corresponding to the at least part of the input sources to the display screen through the multiple video output interfaces so as to perform image display. In addition, the embodiment of the invention further discloses a structure of a display screen controller.
Owner:XIAN NOVASTAR TECH

Safety controller for welding robot and control method thereof

The invention discloses a safety controller for a welding robot and a control method thereof. The safety controller comprises a safety protection module, an upper computer, an execution module, a running information acquisition module and a field bus, wherein, the upper computer and the running information acquisition module send a parameter initialization data command and a robot running state command to the safety protection module via the field bus; the safety protection module sends alarm and error indication to the upper computer via the field bus; and the execution module receives output of the safety protection module. The safety controller and the control method thereof have the beneficial effects that connection complexity is greatly reduced by adopting a field bus technology; and a safety area protection function is realized by means of a plurality of safety protection strategies, namely, corresponding alarm or error message prompt is given out in case of abnormalities, and meanwhile corrective measures or emergency shutdown are carried out, thus ensuring safety operation of a system.
Owner:SOUTHEAST UNIV

Fan system and brake circuit thereof

The invention discloses a fan system and a brake circuit thereof, which comprises a motor, a motor drive circuit, and a control unit. The motor drive circuit is electrically connected with the motor; the control unit is electrically connected with the motor drive circuit; when an input voltage is supplied to electrify the fan system, the control unit generates a forward rotation control signal to control the motor to rotate along a preset direction; when power supply of the input voltage to the fan system is interrupted, the control unit generates a reverse rotation control signal to control the motor to rotate along a direction opposite to the preset direction so as to brake and stop the motor instantly.
Owner:SUNONWEALTH ELECTRIC MACHINE IND

Semi-physical simulation cockpit

The invention relates to a semi-physical simulation cockpit, and belongs to the technical field of digital performance and simulation. The semi-physical simulation cockpit comprises a base component group, a U-shaped rack component group, an operating room component group, a key shaft component group and a U-shaped shaft component group. By adopting the semi-physical simulation cockpit, full-freedom degree rotation in two angles can be achieved, posture of manned cockpit such as fixed wing aircrafts, rotor crafts, special vehicles and rocket equipment can be simulated in angle posture, and a user can be supported to engage and complete relevant simulation training processes. The semi-physical simulation cockpit is small in structural component amount and low in connection complexity degree, the cost of a simulation cockpit is greatly lowered, spatial feeling which cannot be simulated by a conventional simulator can be further simulated, the movement process of a flying posture machine can be relatively vividly simulated, the simulation cockpit can be miniaturized, and conditions are provided for simulators used in the civil application market.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Non-blocking extended system and method based on multiple non-intersected unidirectional fiber ring networks

The invention discloses a non-blocking extended system and method based on multiple non-intersected unidirectional fiber ring networks, and the system comprises an input stage, a central stage, and an output stage, wherein the input stage and the output stage respectively consists of a space division switching modules. The central stage consists of a plurality of non-intersected wavelength division switching modules comprising unidirectional fiber ring networks, and allows any mapping from input to output. The connection of unidirectional fiber rings of the central stage accords with the basic features of a Clos network, and the central stage is in one-one connection with the input and output stages through fiber ports. The number n of module ports of the input is consistent with the number n of module ports of the output stages, wherein n is not greater than the number M of switching modules of the central stage. The invention also provides a specific implementation method for completing the non-blocking extension through employing the system. The method and system increase the network capacity efficiently at low cost, employs all fiber link resources flexibly and effectively, improve the utilization rate of wavelength resources in a network, reduce the blocking rate of the network, and facilitate the implementation of a high-performance optical network in the future.
Owner:SHANGHAI JIAO TONG UNIV

High-availability cluster management method independent of shared storage

The invention discloses a high-availability cluster management method independent of shared storage. According to the method, no additional storage device needs to be added, a cluster is configured according to the requirements, disk data are synchronously or asynchronously transmitted by means of block devices of cluster nodes and network bandwidth limitation, and disk data transmission and share between nodes are ensured. According to the high-availability cluster management method, a disk data transmission device independent of shared storage is provided, the disk data transmission device comprises a synchronous tracking module, a block data synchronization module, a data change mapping module and a synchronization link module. According to the high-availability cluster management method, disk data transmission and share between the nodes are achieved through the block devices of the cluster nodes, cost caused by storage devices can be greatly reduced, and configuration complexity and cluster management risks are reduced.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Two-dimensional code-based transaction method and system

The invention provides a two-dimensional code-based transaction method and a two-dimensional code-based transaction system. The method comprises the steps of receiving a first request from a first acceptance mechanism, wherein the first request is generated based on a two-dimensional code, and the two-dimensional code is generated by a second acceptance mechanism; obtaining a second request basedon the first request, wherein the second request includes an account mechanism of a payer, account information of the payer, account information of a payee and deduction amount information; and sending the second request to the account mechanism of the payer. In the two-dimensional code-based transaction method and the two-dimensional code-based transaction system, through indirection connection between the acceptance mechanism and the account mechanism, the indirection connection of different payment systems is realized, the connection complexity between multiple payment systems can be effectively reduced and the cost is lowered; and meanwhile, through the indirect connection, the two-dimensional codes of the unconnected payment systems can be recognized, thereby realizing a two-dimensional code-based payment transaction.
Owner:LAKALA PAYMENT CO LTD

Power line signal transmission method and device and transmission electric equipment

The invention relates to a power line signal transmission method and device and transmission electric equipment. The method comprises the following steps: receiving a communication signal and power supply voltage; coupling the power supply voltage and the communication signal so as to obtain a carrier signal; and transmitting the carrier signal to the controlled side through the power line. The power supply voltage and the communication signal of the control side are coupled to obtain the carrier signal and then the carrier signal is transmitted to the controlled side through the power line carrier so that power line carrier transmission can be realized, the communication line and the power line can be integrated, the number of connection lines between the control side and the controlled side can be reduced, the connection complexity can be reduced and the connection convenience between the control side and the controlled side can be improved.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD

Processing method and electronic equipment

The invention discloses a processing method and electronic equipment. According to the method, on the premise that a first processing device of the electronic equipment is connected with a storage device, the storage device connected with the first processing device can be reused to store the data of the firmware system, the situation that a storage medium for storing the firmware system is independently arranged is avoided, and the complexity of an internal circuit of the electronic equipment can be reduced. Furthermore, a data operation instruction for the firmware system is obtained throughthe first processing device. The data operation instruction is received from the storage device, and the data of the firmware system stored in the storage device is processed based on the data operation instruction, so that the operation processing of the data of the firmware system can be realized, and the data storage and processing of the firmware system are realized on the premise of reducingthe line connection complexity.
Owner:LENOVO (BEIJING) CO LTD

Parallel-serial multiplication-addition device

The multiplying adder comprises a parallel-serial multiplier and a digital serial adder. The parallel-serial multiplier includes following components: a re-coder receives the multiplier, and outputs a ordered sequence re-coded; a partial product generator generates multiple partial products based on multiplicand and the said ordered sequence re-coded; a adder adds multiple partial products in order to synthesize the product. When partial products are carried out summation, the adder outputs least significant digit in intermediate sum of partial product in digital serial format. The digital serial adder includes a carry save adder for receiving product and input of accumulator in order to generate a output. The said output is a sum of the product of input of the accumulator.
Owner:IND TECH RES INST

Device and method for comprehensive display control of avionics equipment

The invention discloses a device and a method for comprehensive display control of avionics equipment, which can improve the man-machine interaction efficiency and the reliability and accuracy of comprehensive display operation, reduce the hardware connection complexity of a cockpit instrument and a control panel, flexibly configure button functions and are easy to expand and upgrade. The device comprises a power supply module, a data processing control module, a graphic processing unit, a display, a control panel and a plurality of communication interfaces, wherein the graphic processing unitis configured to be used for generating a GUI (Graphical User Interface) to display flight parameters, and receiving a touch operation on the GUI from a screen of a display and / or a control instruction from a control panel; wherein the GUI comprises a menu display area and a content display area; the control panel is provided with a plurality of keys and knobs connected with the graphic processing unit and is used for receiving a control instruction of a user; and the data processing control module is used for processing data from a plurality of airborne devices.
Owner:CHENGDU HERMES TECH

Display panel and display device

The invention discloses a display panel and a display device. The display device is used for realizing the display panel with smaller space of a complete machine. The display panel provided by the embodiment of the invention comprises an array substrate and a wireless router, wherein the wireless router is arranged on a PCB (Printed Circuit Board) connected with the array substrate.
Owner:BOE TECH GRP CO LTD

On-demand decoding method and device

The invention discloses a decoding method which can be applied to multiple scenes such as metropolitan area, a backbone network, data center interconnection and the like to meet the requirements of optical transmission. The method comprises the following steps: obtaining a syndrome corresponding to each code word in a plurality of code words; grouping the obtained syndromes, and performing priority ranking in each group of syndromes; and selecting the syndromes for decoding according to the priority ranking result of each group of syndromes. According to the decoding method, the same decoding processing is not carried out on each code word, so that the problem that the same number of times of decoding needs to be carried out no matter whether the code word is correct or not in a traditional static decoding scheme is avoided, on-demand decoding is realized, and the demand and power consumption of decoding resources are reduced.
Owner:HUAWEI TECH CO LTD

Computer series course experimental platform device based on dynamic part reconfigurable FPGA

The invention relates to a computer series course experimental platform device based on a dynamic part reconfigurable FPGA. The device comprises a hardware circuit system and a PC. The hardware circuit system comprises a dynamic part reconfigurable FPGA module, a clock module, an input module, a displaying module, a communication interface module and a power supply module. The dynamic part reconfigurable FPGA module comprises a control module, a storage module and an experimental area module. The clock module and the input module are connected with the I / O of the FPGA directly. The displaying module is connected with the I / O of the FPGA through a buffer. Parts of functions in the dynamic part reconfigurable FPGA can be changed dynamically during system working operation, and the fact that the functions of other parts are not affected is guaranteed. According to the computer series course experimental platform device, the connecting line complexity of a computer combination principle and a system structure experimental platform hardware circuit can be effectively lowered, occupied space is saved, system stability is improved, and improving and upgrading of the experimental platform can be well achieved.
Owner:SHANDONG UNIV

Energy balance based series-wound lithium battery pack protection apparatus

The invention relates to the technical field of lithium battery pack management equipment, and specifically discloses an energy balance based series-wound lithium battery pack protection apparatus. The protection apparatus is characterized in that the protection apparatus is provided with a controller, an energy equalization circuit connected with the controller and a protection circuit connected with the controller; the energy equalization circuit comprises a voltage sampling circuit, a rectifying filter circuit, an A / D switching circuit, and an equalization switch circuit; the voltage sampling circuit collects the voltage value between adjacent two serially-connected single lithium batteries; the output end of the voltage sampling circuit is connected with the rectifying filter circuit; the output end of the rectifying filter circuit is connected with the controller through the A / D switching circuit; the control end of the equalization switch circuit is connected with the controller; and the equalization switch circuit is serially connected between the adjacent two single lithium batteries that are in mutual series connection. Compared with the prior art, the energy balance based series-wound lithium battery pack protection apparatus has the obvious advantages of reasonable structure, stable operation, capability of effectively improving the operation safety of the lithium battery pack, and the like.
Owner:HEFEI GUOSHENG BATTERY TECH

High-performance and low-complexity LDPC decoder based on randomized computation

The invention belongs to the technical field of wireless digital communication and broadcasting, and particularly provides a high-performance and low-complexity LDPC decoder based on randomized computation. The decoder supports an IEEE802.16 (WiMAX) standard and structurally comprises a look up table (LUT) array of NDS coefficients suitable for a (576 and 480) check matrix in the IEEE802.16 (WiMAX) standard, a VN array with the EM initialization function and a saturating counter with computation posteriori information and SM. An information spreading decoding algorithm based on randomized computation is adopted in the decoder, and the wiring complexity of the decoder can be effectively lowered and the area utilization rate of a chip can be increased while the requirement for a current communication standard throughput rate is met; meanwhile, the decoder selects proper NDS parameters and improves a randomized computation hardware structure according to the specific check matrix, initialization time is shortened, the convergence speed is increased, the decoding performance of randomized computation of the decoder is improved, decoding time is shortened, and the throughput rate is increased.
Owner:FUDAN UNIV

Multi-interface high-speed optical fiber transmission device and method

The invention discloses a multi-interface high-speed optical fiber transmission device and method. The multi-interface high-speed optical fiber transmission device comprises a digital signal processing module, an optical module, an optical fiber cable and a data processing server, the digital signal processing module is used for completing digital beam forming and parameter measurement of the received baseband signal; a result of the signal processing module is accessed to a data processing server through an optical module and an optical fiber cable for further signal identification; the optical module completes electro-optical conversion between the electric signal sent by the digital signal processing module and the optical signal transmitted in the optical fiber cable, and photoelectric conversion between the optical signal transmitted in the optical fiber cable and the electric signal received by the data processing server; according to the invention, on the premise of not changing the architecture of the back-end data processing server, the receiving front-end module is expanded; and meanwhile, on the premise of not losing data, multiple channel outputs are combined into one channel for transmission, so that the system redundancy is reduced, the hardware resource utilization rate is improved, and the hardware cost and the system unit design complexity are effectively reduced.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST

A test equipment for star service subsystem based on fpga framework

The invention discloses satellite task system testing equipment based on a field programmable gate array (FPGA) architecture. The testing equipment comprises a master control module, a TM and TC module, a power supply module, a direct instruction module, a temperature control monitoring module, an OC instruction monitoring module and an analog quantity module. All the hardware modules can be integrated into primary and secondary boxes, the primary box can be independently applied to a stand-alone test, and the secondary box is matched with the primary box for testing and is used for finishing the test of a satellite task subsystem; the operations of the various modules are scheduled in a unified mode by the master control module, only a computer is required during the test, and seamless connection between equipment is realized; compared with a conventional testing system, the testing equipment has the advantages that the number of the equipment is reduced, that the wiring complexity is reduced, and that the testing stability, safety and operability are improved; meanwhile, the testing equipment meets the design requirement on portability.
Owner:AEROSPACE DONGFANGHONG SATELLITE

Base station group control system and realizing method thereof

The present invention relates to digital communication system in radio communication field. The base station group control system includes N base stations, each of which includes main controlling CPU, TDMA / TDD processing unit connected to the main controlling CPU, sync processing time sequence unit connected to the TDMA / TDD processing unit, and line interface unit connected with the sync processing time sequence unit. The sync processing time sequence unit is sync optocoupler with wire-ANDing function; and all the base stations are connected via one frame time sequence bus and one ground line led out from the line interface unit for frame time sequence signal transmission. The present invention also provides the method of realizing group control system in the said system. The present invention has the advantages of flexible group control mode, simple wiring, strong expandability and high signal isolating effect between base stations.
Owner:ZTE CORP

ESD circuit capable of improving high-voltage reliability

The invention provides an ESD circuit capable of improving high-voltage reliability, particularly relates to the technical field of electrostatic discharge protection of integrated circuits, and aimsto solve the problem of low high-voltage reliability in an existing ESD circuit. A novel high-voltage-resistant structure which is composed of a high-voltage-resistant forward conduction diode and a high-voltage-resistant reverse conduction diode is designed, and an N-type region of a PN junction can be shared in a layout. A voltage division structure and a low-voltage protection structure are adopted to protect a circuit, and a high-power NMOS transistor is utilized to discharge ESD current. The ESD circuit provided by the invention is high in DC high-voltage level resistance reliability andESD protection capability, and a chip has the advantages of low implementation complexity and small area.
Owner:上海传卓电子有限公司

Non-blocking expansion system and method based on multiple disjoint unidirectional optical fiber ring networks

A non-blocking expansion system and method based on multiple disjoint unidirectional optical fiber ring networks, the system includes three stages: an input stage, an intermediate stage and an output stage, wherein both the input stage and the output stage are composed of space division switching modules; The intermediate stage is composed of multiple disjoint WDM switching modules including the unidirectional optical fiber ring network, allowing arbitrary input-to-output mapping; the connection of the intermediate stage unidirectional optical fiber ring conforms to the basic characteristics of the Clos network, and is logically consistent with the input The output stages are connected one by one through optical fiber ports; the number n of the input and output stage module ports should be consistent, and the number should not be greater than the number M of the intermediate stage switching modules. At the same time, a specific implementation method of using the system to complete non-blocking expansion is provided. The invention increases network capacity at low cost and high efficiency, flexibly and effectively utilizes all optical fiber ring link resources, improves the utilization rate of wavelength resources in the network, eliminates network blocking rate, and is beneficial to the realization of future high-performance optical networks.
Owner:SHANGHAI JIAOTONG UNIV

A High Performance and Low Complexity ldpc Decoder Based on Random Computing

The invention belongs to the technical field of wireless digital communication and broadcasting, and particularly provides a high-performance and low-complexity LDPC decoder based on randomized computation. The decoder supports an IEEE802.16 (WiMAX) standard and structurally comprises a look up table (LUT) array of NDS coefficients suitable for a (576 and 480) check matrix in the IEEE802.16 (WiMAX) standard, a VN array with the EM initialization function and a saturating counter with computation posteriori information and SM. An information spreading decoding algorithm based on randomized computation is adopted in the decoder, and the wiring complexity of the decoder can be effectively lowered and the area utilization rate of a chip can be increased while the requirement for a current communication standard throughput rate is met; meanwhile, the decoder selects proper NDS parameters and improves a randomized computation hardware structure according to the specific check matrix, initialization time is shortened, the convergence speed is increased, the decoding performance of randomized computation of the decoder is improved, decoding time is shortened, and the throughput rate is increased.
Owner:FUDAN UNIV

Multi-guiding signal conversion device

The invention discloses a multi-guiding signal conversion device, which comprises a conversion box body, at least one 25-pin parallel interface and at least one Bnc interface array group, wherein a containing space is arranged in the conversion box body; the 25-pin parallel interface is arranged on the back panel of the conversion box body; the Bnc interface array group is arranged on the front panel of the conversion box body; the amount of the Bnc interface array group corresponds to the 25-pin parallel interface; each Bnc interface array group comprises a plurality of rectangular-arrangement Bnc interfaces; the Bnc interfaces are connected to the corresponding pin of the corresponding 25-pin parallel interface; and the ground wire of each Bnc interface of the Bnc interface array group is connected to the 25th pin of the corresponding 25-pin parallel interface. By use of the multi-guiding signal conversion device, connection interface diversification is realized so as to adapt to theconnection use requirements of equipment of different form specifications, meanwhile, signal triggering synchronization is realized, and systematized use efficiency is greatly improved.
Owner:JIANGHAN UNIVERSITY

Power line signal transmission method, device and transmission electric equipment

The present application relates to a power line signal transmission method, device and transmission electrical equipment. The method includes: receiving a communication signal and a power supply voltage; coupling the power supply voltage and the communication signal to obtain a carrier signal; and transmitting the carrier signal to the controlled side through a power line. By coupling the power supply voltage on the control side with the communication signal, the carrier signal is obtained, and then the carrier signal is transmitted to the controlled side through the power line carrier to realize the power line carrier transmission. The communication line and the power line can be integrated, thereby reducing The number of connection lines between the control side and the controlled side reduces the connection complexity and improves the connection convenience between the control side and the controlled side.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD

Underwater detection sensor intermediary device

The invention relates to an underwater detection sensor intermediary device, and the device comprises an overwater module, wherein the overwater module comprises an expansion unit and a first control unit, the expansion unit expands at least one serial port unit, and the serial port unit is electrically connected with the first control unit; an underwater module which comprises an isolation unit, a second control unit and at least one serial port bus transceiver, wherein the isolation unit is electrically connected with the first control unit through a first watertight cable, the second control unit is electrically connected to the isolation unit, and the serial port bus transceiver is electrically connected to the second control unit. According to the invention, the above-water module and the underwater module are separated, and the power supply and the communication are physically isolated, so that the technical problems of connection difficulty caused by sensor difference, power supply noise or poor sensor stability and reliability caused by overlarge coupling noise of complex electromagnetic environment water conditions in existing underwater detection are solved.
Owner:QINGDAO NAT LAB FOR MARINE SCI & TECH DEV CENT +1
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