70results about How to "Easy to upgrade and expand" patented technology

The invention provides a smart grid-oriented power quality monitoring system and a smart grid-oriented power quality monitoring method, which relate to the field of monitoring of power quality. The system comprises a distributed online/offline node detection module, a network communication module, a distributed database module and a comprehensive management module of the power quality monitoring system, wherein the distributed online/offline node detection module comprises a parallel analog-to-digital conversion module and a signal processing module so as to realize distributed detection of asmart grid. In the technical scheme provided by the invention, a plurality of analog-to-digital conversion chips are connected in parallel and an analog signal is sampled, so that high-accuracy sampling rate of signals is increased and the detection requirement on transient power quality signals is met; based on a programmable logic chip, online analysis and data compression are realized by a parallel signal processing algorithm; a distributed database is adopted, so that system reliability is enhanced and system upgrade is promoted; and a global positioning system (GPS) and a communication network module are adopted, so that a distributed network system is realized, and power quality monitoring of the smart gird is supported powerfully.

The invention provides a public security traffic management data brain, which can realize integration and data integration of traffic management systems in various places, improve the deep applicationcapability of data information and enable the traffic management system to have higher collaboration. Meanwhile, the invention further discloses a construction method of the brain based on the publicsecurity traffic management data. The system comprises a facility layer, a platform layer and an application layer, wherein the facility layer comprises a traffic management special cloud infrastructure and a cloud resource management system, and the platform layer is used for accessing, integrating, storing and processing various traffic management information resources and providing resource services for the outside and comprises a unified data exchange system, a video AI application platform and a big data resource pool; and the application layer provides application functions and servicesfor various traffic management users, and comprises a digital traffic geographic information system and an intelligent collaborative management and control application platform.

The invention discloses a control system for a stackable multi-color-head three-dimensional printer capable of realizing precision printing. A plurality of color heads of the stackable multi-color-head three-dimensional printer are used for separating hardware parts of a control loop and a heating control loop of each wire feeding pump from a motherboard to form a modular plug-board structure capable of easily ensuring the symmetry consistency; the modular plug-board structures are respectively plugged into interface slots of a heating system and a multi-color control system on the motherboard; by virtue of the symmetry consistency of technical indexes and parameter values of each wire feeding pump, multi-color fuse wires can be fused without temperature difference in a sprayer nozzle when a multi-color-head three-dimensional workpiece is printed, color wires are extruded, and high printing precision is realized. The mechanical strength of the printed workpiece reaches mechanical strength indexes of a material. Meanwhile, the control system is convenient to maintain and replace, simple in structure, stable and reliable; resources are saved, and the energy consumption and the cost are reduced.

The invention discloses a tank truck lateral overturning early warning system based on a GIS. The system comprises a mobile GIS module, a vehicle information module, a lateral overturning state judgment module, an early warning module and an active speed control module. In the system, the mobile GIS module obtains vehicle position information and obtains information of a bend and a road in the heading direction through a geographic information system; the vehicle information module stores vehicle parameter information and obtains in-tank liquid information in real time; the lateral overturningstate judgment module combines the information of the two above modules to establish a calculation model of the lateral overturning critical speed of a tank truck when the tank truck travels on the bend, compares the current traveling speed of the vehicle with the minimum lateral overturning critical speed and judges whether the vehicle can be overturned or not according to a comparison result; the early warning module warns a driver to control the vehicle speed in the modes of voice and the like when the vehicle is in lateral overturning danger; and the active speed control module reduces the vehicle speed through control of an engine throttle valve and a brake device under an emergency. The system guarantees the safety of the driver and the vehicle.

The invention discloses a smokeless coal-charging gas collecting pipe pressure intelligent control system. The smokeless coal-charging gas collecting pipe pressure intelligent control system comprises an internal and external interface system, a data processing system, an intelligent computing center system, an execution system, a data collection center system, a central control system, a client end and a working condition signal processing module, wherein the internal and external interface system is electrically connected with the data center system in a bidirectional way; the data center system is electrically connected with the intelligent computing center system in a bidirectional way. The smokeless coal-charging gas collecting pipe pressure intelligent control system has the advantages that the defects of lack of feedforward analysis, data mining and coordinated control and higher energy consumption are overcome; the energy is saved, the consumption is decreased, the pressure of a gas collecting pipe is stabilized, the surge of a fan is treated, the pollution to environment is reduced, the chemical production efficiency is improved, the production cost of enterprises is reduced, and the requirement of environment change is met; the accuracy is good, the stability is high, the applicability is strong, and the subsequent maintenance and upgrading is convenient.

The invention discloses a data encryption and decryption method, which includes that S101, an encryption module receives encryption root secret key, encryption times and data to be encrypted; S102, the method judges whether the encryption times are larger than 1, if the times are larger than 1, S104 is conducted, if the times are equal to 1, S103 is conducted; S103, the encryption module conducts encryption on received data by utilizing the encryption root secret key and outputs encryption results; S104, the encryption module divides the data to be encrypted into a plurality of segments of data with equal length and corresponding to the encryption times; S105, the encryption module utilizes the encryption root secret key to serve as the secret key of the first segment of data to encrypt the first segment of data; S106, the encryption module sequentially utilizes the previous segments of data as the secret key to encrypt the following segments of data; S107, the method judges whether the segments of data finish encryption or not, if the segments of data finish encryption, S108 is conducted, if not, S106 is conducted; S108, results obtained by encryption of all the segments of data are sequentially combined and then output. The data encryption and decryption method has the advantages of being high in data encryption safety, convenient to achieve, low in complexity, easy to expand and the like.

The invention provides a.NET MVC mode-based fundamental development framework for WEB background management application systems. The fundamental development framework comprises a system architecture which is a .NET MVC B/C architecture and comprises a database and application system theme files; a plurality of groups of units are built in the system architecture and include a module management unit, a role management unit, a permission configuration unit, an organization architecture unit, a user management unit, a log management unit and a system setting unit. The fundamental development framework is suitable for the development of enterprise and internet background systems; the framework has the advantages of extremely complete permission role management functions, system menu management, universal function modules and concise and consistent UI style; the module functions are reusable; the development time is saved, the development efficiency is increased and the upgrade and extension are facilitated.

This invention discloses one layer router mechanism automatic exchange light network management system and also discloses one method for this mechanism, wherein, through added zone management system, it melt zone management idea and function for send plane and control plane for integral management and for support for layer zone new property.

The invention discloses an ultrasonic transducer ring array based sound field synthesis and parallel operation device which comprises an ultrasonic transducer ring array set connected with a multi-channel high-frequency broadband linear power amplifier module; the ultrasonic transducer ring array set comprises a circular chassis, clamp slot blocks and rectangular ultrasonic transducers, eighteen installing grooves are uniformly distributed on the outer periphery of the circular chassis with certain intervals, a through hole is arranged at the center of each installing groove, eighteen clamp slot blocks are arranged on respective installing grooves, and clamp slots are arranged on the two sides of each clamp slot block; a rectangular ultrasonic transducer is arranged between adjacent two installing grooves, and the two sides of the rectangular ultrasonic transducer are clamped in the clamp slots; and each rectangular ultrasonic transducer comprises two L-shaped copper foils, an aluminum balk board and an rectangular piezoelectric ceramic piece. According to the device, ultrasonic signals are generated by the ultrasonic transducer ring array set, and an expected sound field is synthesized by using a sound field synthesis technology and adjusting corresponding sound signal parameters, so that the parallel operation of multiple micro-nano scaled objects is realized.

The invention discloses a voice learning method, a voice learning device and a voice learning system with the visual recognition function. The device comprises an information processing unit, an imageacquisition unit, an audio input unit, an audio output unit, a handwriting display unit, a handwriting trace acquisition unit, a storage unit and a wireless communication unit. According to the technical scheme, a picture of learning materials is directly shot for acquiring the learning materials, thus the operation is easy and convenient, and upgrading and capacity expanding are facilitated; thedependence of users on a display screen is reduced, and thus the eyesight of teenagers is protected while the learning efficiency of students is improved through assistance; the elder can also help the children in learning; parents can directly inquire the learning progress and score on a server through the APP; and multiple functions are comprehensively realized on one device, and the operationis simple and convenient.

The invention discloses a base station optical fiber time service system based on BD/GPS double antennas, which comprises at least one satellite antenna, a BBU synchronization system host and a plurality of BBU synchronization system slaves. The satellite antenna is connected with the host, and the host is connected with all the slaves through optical fibers; wherein the host comprises a satellite signal receiving module with a 1PPS + TOD receiving unit, and the satellite signal receiving module can analyze satellite signals to obtain 1PPS + TOD time information. According to the time service system disclosed by the invention, satellite signals can be cascaded with a plurality of BBU equipment only by a set of BD/GPS antenna without a cable feeder, so that the number of antennas can be greatly reduced, the occupation of sky surface resources and machine room space is reduced, high-precision time synchronization information is provided for a mobile base station, and the time accuracy of all BBUs can be highly consistent; deployment and maintenance are simple, upgrading and capacity expansion are convenient, automatic opening and automatic maintenance can be achieved, the fault rate is reduced, and the base station construction cost is reduced.

The invention relates to a litchi pest monitoring and identifying system and a litchi pest monitoring and identifying method. A pest recognition module, a matching judgment module and a pest feature database accommodating texture, color, contour and background feature libraries are arranged in a computer server of the system. And the matching judgment module transmits a matching judgment result tothe mobile phone of the user. The monitoring and identifying method comprises the following steps: firstly, establishing a pest identifying module, and carrying out image processing on a picture shotby a user to obtain texture, color, outline and background feature maps; feature values of the four feature maps are extracted respectively and simplified into fingerprints of character strings, andthe fingerprints are sent to a pest feature database. Then real-time monitoring is carried out, a user shoots pest photos in real time, four characteristic fingerprints are obtained through processingaccording to the same method of database building, the fingerprints correspond to the fingerprints stored in the pest characteristic database, and the pest with the maximum matching degree is the possible pest. According to the method, litchi pests are recognized, control measures are taken in time, the yield and quality of litchis are guaranteed, and the database can be continuously perfected and enriched and is convenient to use.

The invention discloses a multipurpose shield tunneling machine vacuum suction cup segment splicing remote-control system which comprises a transmitter, a control main board, a receiver and a shell. The transmitter and the control main board are connected and located in the shell, and the receiver is mounted on a shield tunneling machine and used for receiving an instruction transmitted by a receiver matched with the receiver. The receiver is mounted on target equipment, a modular connecting-inserting structure is adopted, expansion and upgrading are facilitated, intelligent adjusting can be conducted on outputting, the multipurpose shield tunneling machine vacuum suction cup segment splicing remote-control system is suitable for various types of output control, and maintenance is convenient; mounting is concise and rapid, and the mounting and debugging time of the equipment is shortened greatly; by setting the output control types of the receiver, a control system can control different equipment comprising a shield tunneling machine vacuum suction cup snatch disc and a shield tunneling machine mechanical-type snatch disc; and wireless communication data of the system are transmitted through a security encryption mode, when same frequency interference exists, the using frequency of the remote-control system can be changed, and thus normal working of the remote-control system isensured.

The invention discloses a standard modular expandable mobile energy storage power supply structure, which comprises a shell assembly, a rear cover, a battery module, an inverter module, a DC power supply module, an expansion module and a connection mainboard, according to the invention, each module can be quickly clamped with the shell through the matching of the guide grooves and the guide rails, when a product needs to be expanded, only the corresponding battery module or inverter module needs to be added, and when one of the battery module, the inverter module and the DC power supply module is damaged, the corresponding module is detached and replaced, so that the production cost is reduced, and the production efficiency is improved. In addition, the battery module, the inverter module and the DC power supply module can be connected with the connector connected with the mainboard through the connecting terminal, and different numbers of battery modules and inverter modules can be combined at will through the standard modular design, so that products with different powers and different capacities can be realized, and the power supply is convenient to use. And standardized manufacturing and future expansion and upgrading of products are facilitated while different requirements are met.

This invention discloses a system and a method for passing through fire walls based on the ALG+MP soft exchange network composed of an ALG1, MP2, LAN exchanger3, FW4, MGC5, IAD6, an ordinary phone set 7 and SPY 8, in which, the ordinary phone set is accessed into LAN exchanger3 then to IP by IAD6 to call controlled by MGC5 and matches with MGC5 to finish the penetration of FW4 by ALG1 and MP2, ALG1 sets up the communication connection between terminals and MP2 to realize communication among terminals by the forward of medium flows of MP2.