52results about How to "Realize plug and play function" patented technology

This invention discloses a multi-monitor system, including: The master indicator, establishes the wireless position determination sensor; As well as one or more than one supplementary monitor, at monitor's central place, establishes the monitor information launcher used in the launch. This invention also provides one method of using in the multi-monitor system, diagnosing and adjusting automatically many monitors' relative position, including the following steps: Through establishes the wireless position determination sensor on master indicator and the supplementary monitor's launcher, according to the predetermined judgment criterion, determines the supplementary monitor's relative position opposite master indicator, namely the supplementary monitor's azimuth information; Then to the operating system with each monitor's azimuth information. The operating system could establish each supplementary monitor's position in the driver according to the azimuth information.

The invention discloses an intelligent sensor for the electrical conductivity of water quality. The sensor comprises a temperature-conductivity probe used for sensing the temperature and the electrical conductivity of the water; a signal conditioning module which is connected with the temperature-conductivity probe, forms a sensing circuit with the temperature-conductivity probe and carries out filtering and amplification to an output signal; a microprocessor which is connected with the signal conditioning module, is used for digitizing the signal input by the signal conditioning module and adopts IEEE1451 standards to carry out the calibration and alignment of channels; a bus interface module which is connected with the microprocessor and is used for the functions of networking and plugging and playing; and a power module which supplies power to the circuits of all parts of the sensor under the control of the microprocessor and realizes the characteristic of low power consumption. The invention can eliminate the polarization effect of the probe, has pollution resistance, large measuring range and low price, and is characterized by the functions of self alignment and compensation, self diagnosis and plugging and playing and high integrity.

A method for dynamically distributing IP address on set-top box includes connecting client end module to IPTV set top box of Internet and using service end module to distribute and manage DHCP server of IP, utilizing set-top box at client end to monitor UDP port 67 and to send IP address leasing request as well as to configure TCP / IP, using server at service end to receive IP address leasing request of set -top box and to return confirmed IP address back as well as to change IP address mapping table on server.

Dynamic expandable Parlay/OSA gateway of open interface technique in use for next generation of network is composed of soft bus, configuration management unit, SCF unit, TCAP/non TCAP quasi protocol mapping unit, operation maintenance unit and network administer unit. Being as common communication channel for each unit/module, the soft bus can shield difference of isomerous application system and network system so as to make the gateway possible to be deployed in practical network environment. Executing register/cancel mechanism of modules, the control center-configuration management unit makes the gateway introduce new SCF module and protocol mapping module dynamically in plug and play mode or start up process instance of new module, also realize load balancing. When replacing protocol stack, the protocol-mapping unit is modified partially in protocol adaptation layer; and codes of SCF module does not need to be modified. Features are: good expansibility, and easy of application.

The invention provides a distributed control method for an isolated micro grid. The method distributes a distributed controller for each distributed power supply, and only interactive voltage and frequency information between adjacent controllers are needed; a consistency algorithm evaluation is used to obtain average voltage and frequency of the whole network and is used for secondary optimal control; by optimizing reference voltage and frequency of droop control, each distributed power supply can output active power accurately according to a rated capacity proportional distribution, and system voltage regulation and frequency modulation are performed. Compared with the prior art, by using a sparse communication network without a center node, the method provided by the invention can realize the plug and play of the distributed power supply, and proportional control of power can be realized only through interactive voltage information; besides, the communication lines and communication traffics are less, the demand on the communication lines is low, and the reliability of the method is high.

The invention discloses a service transport method and device. The method comprises that a first node generates a route forwarding table to reach other nodes according to the topology structural of the whole network, and a tunnel forwarding table is established according to addresses of target nodes in the route forwarding table and corresponding tunnel ID; and according to the tunnel ID in a service message and the tunnel forwarding table, the first node carries out service transport. According to the invention, the problem that a lot of manual configuration is needed in the IP RAN network service channel in the related arm is solved, a plug-and-play function of a device is realized, great convenience is provided for establishment of service channels of the IP RAN network, and the labor and time cost due to manual configuration is reduced.

The invention discloses a power optimization scheduling-based microgrid energy storage system state consistency control method, which belongs to the technical field of control of the microgrid energystorage system. The method adopts time-of-use price, new energy prediction output and energy storage unit battery pack state of energy SOE to determine an energy storage unit operation strategy on thebasis of considering energy storage charge and discharge efficiency and ensuring system active power balance, and considers an energy storage unit battery pack state of energy SOE imbalance problem and time-varying energy storage unit power charge and discharge bearing capability SOP, and a microgrid energy storage system power balance model is built; and besides, through a consistency protocol,energy storage units SOH and SOE are ensured to be consistent, the application performance of the energy storage unit in the energy storage system is improved, the overall charge and discharge times of the energy storage system is effectively reduced, and the service life is improved.

The invention discloses a modularized high-frequency link power conversion system of a plug-and-play structure, and belongs to the technical field of power electronics. The system comprises a power supply module with a plug-and-play port, a control module with a plug-and-play port, a signal processing module with a plug-and-play port, one or more power modules with plug-and-play ports, one or more high-frequency isolation transformers and a mother board with multiple plug-and-play ports. The power supply module, the control module, the signal processing module and the power modules are inserted into the corresponding plug-and-play ports respectively of the mother board through respective play-and-plug ports, and signal transmission is achieved through a signal connection bus on the mother board. The power modules are connected through power connection buses, and the power modules and the high-frequency isolation transformers are connected through power connection buses. The plug-and-play function of the power conversion system can be achieved, and production, assembling and maintenance are facilitated through a modularized structure.

The invention provides a multi-objective optimal dispatching method of a power system based on a two-layer consistency algorithm. The process comprises the following steps: establishing a multi-objective optimal dispatching model of the power system; searching for the best condition; designing a two-level consistency algorithm to find out the optimal output of the generator and calculating the minimum value of comprehensive expectation. The invention considers the influence of the transmission loss on the system supply-demand balance and the unit output optimization, and can realize the real-time calculation of the transmission loss. The multi-objective optimization problem is transformed into a single objective optimization problem by using linear weighted sum method. The supply side cansatisfy its own interests by adjusting the weighted coefficient according to the demand of the enterprise. The optimal configuration of electric energy is realized, and the supply side is guided to make a reasonable capacity plan. On the premise of considering the transmission loss, it can meet the user's load demand and improve the economic benefit and social environmental protection benefit of the enterprise. Low dependence on communication and effective protection of enterprise and user privacy, and can achieve plug and play group and effectively respond to network topology changes.

The invention belongs to the technical field of hydrogen production by water electrolysis, in particular relates to a method for diagnosing the fault of a rectifying cabinet on the basis of wavelet transformation and Wigner-Ville distribution. A decomposing layer number n of wavelets is chosen according to a frequency band where a fault signal among signals is positioned; db1 and db3 are used as generating functions of the wavelets, multiresolution decomposition of n to 1 layers are respectively carried out so as to decompose the original fault signal into n sequences with each of which having only one component; each component is analyzed according to the Wigner-Ville distribution, the Wigner-Ville distribution of all the sequences are combined to form the time frequency of the original signal, and the multiple dimensioned on-line analytical method of the signal is realized. The method can greatly enhance the accuracy for diagnosing the fault, the reliability and the maintenance level of the prior rectifying cabinet for producing hydrogen by water electrolysis so as to ensure that equipment for producing hydrogen by water electrolysis safely and reliably works.

The invention discloses a cooperative control method applicable to a photovoltaic generator set without a main control center. Auxiliary variable iterative calculation is introduced so that an output power of the photovoltaic generator set is obtained; through a high-level controller, a stocking rate instruction value is calculated; approximate calculation is carried out on a maximum power output by each photovoltaic generator and then measured values of stocking rates are calculated; a communication matrix is established, and through a bottom layer controller, reference values of the stocking rates and reference values of DC bus voltages of grid-connected inverters are calculated; and through a voltage current double-closed-loop PI control method of the photovoltaic grid-connected inverters, stable control of output power of each photovoltaic generator is realized. The method does not need to arrange a main control center to control the photovoltaic generator set so that communication device and cost are saved and operation robustness is improved and a plug and play function is realized; and cooperative control of output powers of a large number of photovoltaic generators which are geometrically distributed is realized and support is provided to smoothing of load fluctuations of an electric power network and improvement of voltage and frequency stability in the electrical power network.

The invention discloses a hydraulic excavator hammer parameter setting method, characterized in that: in an excavator controller, setting a hammer parameter setter which comprises preset parameter database, input module, display module and setting module, firstly selecting preset hammer trademark and model, after confirming parameters, modifying excavator electric control program memory by the setting module and completing settings of the hammer parameters including pressure and flow of hydraulic system and matching power of hydraulic pump. And the invention implements 'plug-and-play' function of the hydraulic hammer, and when a user changes the hydraulic hammer, he only needs to select the corresponding trademark and model on display screen to be able to implement power system's power, pressure and flow matching.

The invention relates to the technical field of plug-and-play of intelligent equipment in a low-voltage transformer area of a distribution network, in particular to a method for realizing plug-and-play of power distribution and utilization intelligent equipment. The method comprises the steps of executing plug-and-play of a power distribution main station and intelligent equipment and executing plug-and-play of the intelligent equipment and a tail end node. The invention aims to overcome the defects in the prior art, and provides a plug-and-play method for power distribution and utilization intelligent equipment which does not have a recognizable MAC address or IP address, in particular to intelligent equipment in a low-voltage transformer area of a power distribution network.

The invention discloses an intelligent sensor and an intelligent method thereof, and the intelligent sensor comprises a sensor module, a circuit switch module, a signal conditioning module and a processor; the sensor module is disconnected or connected with the signal conditioning module through the circuit switch module, and the processor is connected with the signal conditioning module and the circuit switch module; the sensor module is used for collecting measured data; the signal conditioning module is used for receiving and processing the data acquired by the sensor module and sending thedata to the processor; the processor is used for processing the data processed by the signal conditioning module and sending a control instruction to the circuit switch module; and the circuit switchmodule is used for receiving a control instruction of the processor to connect or disconnect the sensor module and the signal conditioning module. Through combined use of the processor and the basicsensor, the sensor is endowed with an intelligent capability, and an intelligent function is realized.

The invention discloses a multi-stack distributed control method based on fuel cell health degree correction, and the method comprises the steps: collecting voltage and current signals of an output end of a fuel cell, collecting voltage and current signals of an output end of a unidirectional converter, and collecting voltage and current signals of a demand side; evaluating the real-time operation performance of the fuel cell through the obtained voltage, current and power of the output end of the fuel cell, and quantifying the health degree of each fuel cell; calculating a real-time self-tuning factor related to the current performance state of each fuel cell according to the health degree calculation result of the fuel cells and by combining the circuit and current-carrying characteristics of the direct-current power supply network; and finally, completing the self-adaptive adjustment of the output power of the fuel cells through the rapid correction of a voltage outer loop and a current inner loop under the change of a real-time self-tuning factor, and achieving the distributed control of multiple stacks of fuel cells. According to the invention, any electric pile can access the system or the fault electric pile can exit the system, the communication fault is reduced, the system stability is enhanced, and the system capacity expansion is facilitated.