38results about How to "Meet system requirements" patented technology

The invention relates to a medical device, in particular to an orthopedic surgery navigation system which is used in a closed intramedullary nail for fracture recovery surgery. The orthopedic surgery navigation system includes a binocular stereo vision sensing device and markers, the binocular stereo vision sensing device includes: a computer with the main frequency of not less than 1G, a locator which is arranged on a locator support, two CCD cameras which are arranged in the locator and a dual-channel signal synchronizer which is connected with an image collection card, at least three active luminous diodes which are not positioned on a same straight line are arranged on the markers, wherein, an intramedullary nail is rigidly inserted and connected on one marker, and the other marker is rigidly inserted and connected with a special surgical electric drill. The invention aims at providing the orthopedic surgery navigation system and realizing the accurate positioning of the relative position relationship of a surgical tool and the lesion part of patients, so a surgeon can accurately and successfully drill a twist-locking hole of the intramedullary nail under the guidance of a screen of the computer.

A new partial product bit generator is used to generate a partial product bit PPj_i. In some embodiments, the partial product bit generator generates the partial product bit PPj_i from intermediate signals that are able to be generated concurrently, for example in two levels of combinatorial logic. The partial product bit PPj_i is then able to be generated from the intermediate signal, for example in only one level of combinatorial logic. In such embodiments, a long series of combinatorial logic operations is not required.

A vehicle radar system includes a plurality of transmission sub-arrays, wherein the plurality of transmission sub-arrays are symmetrical with respect to a symmetry axis and the plurality of transmission sub-arrays are parallel to the symmetry axis. The vehicle radar system further includes a transmission power splitter which is coupled to the plurality of transmission sub-arrays for respectively applying a plurality of phases and a plurality of amplitudes corresponding to the plurality of transmission sub-arrays to the plurality of transmission sub-arrays; wherein among the plurality of transmission sub-arrays, a first transmission sub-array which is closest to the symmetry axis and a second transmission sub-array which is farthest from the symmetry axis have a phase difference between 120 degrees and 180 degrees. The vehicle radar system of the present invention can simultaneously meet the system requirements of the LCA system, the DOW system, the RCTA system and the BSD system, thereby reducing the production cost and the complexity in system integration.

The invention discloses a self-adaption anti-interference detection threshold determination method for an MSK spread spectrum receiver. The method is realized through adoption of an A/D data caching module, a windowing module, a time frequency conversion module, an amplitude spectrum line mean value determination module and a detection threshold determination module. The A/D data caching module isused for caching A/D collection data of spread spectrum signals. The windowing module is used for windowing the cached data. The time frequency conversion module is used for carrying out time frequency conversion on the windowed data. The detection threshold determination module is used for determining a self-adaption anti-interference detection threshold. According to the method, the problem that a traditional anti-interference detection threshold determination method is relatively low in adaptability is solved.

The invention discloses a method for determining a self-adaptive anti-interference detection threshold of a high-dynamic digital receiver. The method is realized through an A/D data cache module, a windowing processing module, a time-frequency conversion module and a detection threshold determination module. The A/D data caching module is used for caching the A/D acquisition data of the received signals; the windowing processing module performs windowing processing on the cache data; the time-frequency conversion module performs time-frequency conversion on the windowed data; and the detectionthreshold determination module determines the self-adaptive anti-interference detection threshold. The problem that a traditional anti-interference detection threshold determination method is poor inadaptability is solved.

The invention discloses an electric power marketing service customer internet of things application center design method. Data and management capability required by an application center are acquired from an edge-end layer; a data access layer in a provincial side intranet is established, and the capability of a data edge layer is integrated and packaged into a service; services are packaged into business logic on a provincial intranet Internet of Things application platform, and an in-province Internet of Things application support platform is constructed; and internal and external network isolation is broken through at the headquarters platform, the external network Internet of Things application platform and the internal network application center carry out secure communication interconnection, and the application platform obtains service capabilities of the marketing business middle station, the data middle station and the external network Internet of Things center. A layer-by-layer hierarchical architecture mode fits a management structure, and unification of management and informatization is realized; and by implementing a secure communication mode, the problem of penetration of the intranet and the extranet is solved, so that data and functional services can be safely delivered, and the confidentiality of an intranet system is ensured. Through flexible design of each module of the Internet of Things application center, system requirements are met, and maintainability and expandability are improved.

The invention belongs to the field of aerospace and aviation, relates to a cone valve, and in particular to a low flow resistance cone valve. The cone valve comprises an adjusting circular cone and a throttling circular tube. The improvement of the cone valve is as follows: the throttling circular tube comprises a convergent section pipeline, a throat part pipeline and a diffusion section pipeline which are sequentially arranged in a propellant injection direction, wherein each section of pipeline meets a certain parameter. With the improvement in the invention, the problems that an engine is high in pressure drop and large in flow resistance in the 7500 N working condition can be avoided, and the cone valve can meet requirements of the engine system in the 7500 N working condition.

A power output management apparatus of a battery and a management method thereof are provided. The management method includes: enabling a power output mode and discharging a battery to a load via a discharge circuit in the power output mode; calculating the output power of the discharge circuit during the discharge; comparing the output power and a target power to generate a comparison result; and setting the output power being adjusted step by step by a unit compensation amount via the discharge circuit according to the comparison result.

The invention relates to a replaceable CPU module device of a desktop computer, comprising a system control module board, a CPU module board and a radiation device, wherein a second bus connector of the CPU module board is a golden finger joint extending from the CPU module board and is arranged on a socket joint of a first bus connector of the system control module board so that the replaceable CPU module device of the desktop computer can be utilized by a user to decrease the cost burden for replacing a CPU and prolonging the life cycles of peripheral devices of the desktop computer.

The invention provides a 100G WDM (Wavelength Division Multiplexing) network planning system. The planning system comprises a status analysis system module used for determining the influence result of introducing 100G wavelength division multiplexing according to technology and network status information, and acquiring a preliminary feasibility judgment result; an index system module used for determining each key index of the 100G wavelength division multiplexing applied to the current network; a test system module used for acquiring a test result; a planning strategy system module used for determining an application model of network construction and the principle and strategy of the network construction according to the preliminary feasibility judgment result and the test result; a business planning system module used for performing business planning at different latitude, and determining the network requirement; a networking planning system module used for forming various aspects of networking construction schemes based on the network requirement, and obtaining a 100G wavelength division multiplexing system scheme; and an evaluation system module used for performing evaluation analysis, obtaining an evaluation analysis result, and determining the feasibility of each networking construction scheme according to the evaluation analysis result. The scheme of the embodiment of the invention satisfies the planning construction requirements of the 100G network and the system requirements of the 100G WDM network.

The invention discloses a high-dielectric and low-loss material based on a capacitance-inductance synergistic effect and a preparation method, and the preparation method comprises the following steps:step 1, weighing graphene with different mass fractions, respectively mixing the graphene with polyvinylidene fluoride, and conducting crushing and drying to obtain first mixed powder and second mixed powder, wherein the mass fraction of the first mixed powder graphene is 0-6 wt.%, and the mass fraction of the second mixed powder graphene is 6-18 wt.%. step 2, subjecting the first mixed powder tocompression molding to obtain a single-layer material; and step 3, pouring the second mixed powder into the single-layer material prepared in the step 2, and carrying out compression molding to prepare the high-dielectric and low-loss material with the double-layer structure. According to the invention, the graphene powder is used as a conductive functional phase, the single-layer block materialwith inductance and capacitance characteristics is prepared, the inductance-capacitance and capacitance-inductance-capacitance laminated materials are prepared through sequential lamination and have the characteristics of high dielectric property and low loss, and large-scale production is facilitated.

The invention discloses an electronic communication power supply system. The system comprises a controller, a comparator, a wireless module, a voltage sampling module, a PFC controller module, a booster circuit, and a rectifier circuit. The controller is connected with an over-current protection driver module, the wireless module, the comparator, the booster circuit, and a voltage and current sampling module. The comparator is further connected with the voltage and current sampling module. The voltage and current sampling module is further connected with an isolation transformer, the rectifier circuit, and an over-current protection module. The over-current protection module is further connected with the other end of the over-current protection driver module. The system of the invention adopts a phase difference measurement method. According to the method, voltage and current signals detected by the secondary side of the isolation transformer are shaped by the comparator, the phase difference between voltage and current is calculated, and the phase difference is sent to the controller for cosine calculation to get the power factor of the system. Through phase measurement using an equal precision method, very high precision can be achieved. The system has the advantages of simple structure, small size and low cost.

The invention discloses a new energy vehicle charging pile charging payment scheme based on digital RMB, and belongs to the field of charging pile charging payment, the new energy vehicle charging pile charging payment scheme based on digital RMB comprises a vehicle and a charging pile, the vehicle comprises a power supply management module, a vehicle wallet and a charging interface, the charging pile comprises a charging management module, a pile wallet and a charging gun; the non-network payment method comprises the following steps: S1, a charging gun of a charging pile is correctly connected with a charging interface of a vehicle; the method is low in software and hardware requirements, is not limited by any brand, and can realize small-range transformation on existing electric vehicles and charging piles, so that the system requirements are met, the technical characteristics of digital RMB off-line payment launched by the Chinese People's Bank are used, and under the condition that the normal working state is met, charging and payment processes are completed in a network-free state.

The invention relates to an electromagnetic valve driver control system and a control method thereof, and belongs to the field of controller controlling. The microcontroller control system comprises apower supply module, a MCU, a communication conversion module, a drive chip, a power module and a current detection circuit, wherein the power supply module is used for supplying power to the MCU; the communication conversion module is communicated with the MCU; the drive chip is connected with the power module; the drive chip is connected with the MCU; and the current detection circuit is matched with the power module. The invention further provides a method for controlling the microcontroller. The microcontroller control system is reasonable in design, is stable and reliable, use of a traditional simulating device is reduced, the digital level of the system is improved, debugging is convenient, and accuracy and interference resistance of the system are improved.