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228results about How to "Guaranteed correctness" patented technology

Modbus protocol conversion system based on 3G (The 3rd Generation Telecommunication) Internet access

InactiveCN102546619AIncrease access rateGuaranteed correctnessConnection managementWireless network protocolsData transmissionCable Internet access
The invention relates to a Modbus protocol conversion device based on 3G (The 3rd Generation Telecommunication) Internet access, belonging to a protocol conversion device in the technical field of Internet. Aiming at the instable problem of 3G dial-up access, in order to ensure the correctness and transparency of data transmission during Modbus protocol conversion, the invention adopts the Modbus protocol conversion device based on 3G Internet access. A remote server, a protocol conversion device and data acquisition equipment are needed for hardware architectures. A 3G script completes dial-up access, and a PPP (Point to Point Protocol) automatically detects the network. When the Internet is turned off or a Ping (Packet Internet Groper) is illogical, automatic redial is conducted. Data communication between the protocol conversion device and the server adopts a Modbus TCP (Terminal Control Protocol), and data communication between the protocol conversion device and the data acquisition equipment adopts a Modbus RTU (Remote Terminal Unit) protocol. Transparent data transmission is realized, the protocol conversion device can quickly detect abnormal disconnection of the Internet and automatically connect the Internet to ensure stable and lasting operation, and the protocol conversion device can be used in more environments.
Owner:ZHEJIANG UNIV OF TECH +1

Electric energy quality collecting device and application thereof in electric energy quality comprehensive analysis system

The invention relates to an electric energy quality collecting device and the application of the electric energy quality collecting device in an electric energy quality comprehensive analysis system. The electric energy quality collecting device comprises a power module, a signal input module, a time tick module, a data collection and analysis module, a back plate data bus and an Ethernet port. The electric energy quality comprehensive analysis system is a background manager provided with embedded electric energy quality steady state/transient state synthetic analysis software and receives electric energy quality steady state data and transient state data transmitted by the device in real time to analyze the electric energy quality, and the electric energy quality comprehensive analysis system is high in real-time performance, misses no disturbance events, and can rapidly extract signal envelopes, accurately position transient state characteristics such as the starting time, the duration time and the amplitude of disturbance of the transient state electric energy quality and ensure correctness of extracting transient state information. By applying the synthetic analysis combining the steady state and the transient state of the electric energy quality, the defects that an electric energy quality transient state algorithm is poor in real-time performance and large in calculation quantity can be made up, causes of electric energy quality transient state events can be accurately positioned, and safe and stable operation of an electrical power system and electrical equipment can be ensured.
Owner:SHENZHEN SHUANGHE ELECTRIC CO LTD

Synchronizer self-learning identification control method and position verification control method

The invention provides a synchronizer self-learning identification control method and a vehicle synchronizer position verification control method based on the synchronizer self-learning identification control method. According to the synchronizer self-learning identification control method, forward and reverse rotation of a gear selection and shifting motor are controlled, the voltage change of a gear selection and shifting position sensor is monitored so as to identify the state of a synchronizer reaching extreme positions, the voltage value of the position sensor when the synchronizer is at each extreme position is recorded, and therefore self-learning identification of gear selection information and gear shifting information of the synchronizer is realized. According to the position verification control method, when a speed changer reaches a bottom line, a vehicle runs for a certain period of time and the vehicle cannot be started normally due to gear selection and shifting, the synchronizer self-learning identification control method is adopted for learning and identification of the gear selection information and the gear shifting information. By means of the synchronizer self-learning identification control method and the position verification control method, the problem that the synchronizer is inaccurate in position because of multiple factors is effectively eliminated, gear selection and shifting of the vehicle can be based on a correct synchronizer position, and therefore the correctness of gear selection and shifting of the vehicle is guaranteed.
Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1

Device for implementing multi-version compatibility of software configuration data of base station and application thereof

The invention discloses a device for realizing the compatibility of multi-edition of software configuration data of a base station and an application of the device. The device comprises: a communication module, a data processing module and a document configuring module, wherein, the communication module is used for obtaining the existing edition number and the configuration data corresponding to the existing edition from the base station and sending out and submitting the corresponding configured data of the object version transformed by the data processing module to the base station; the data processing module is used for obtaining the corresponding configuration data of the existing edition from the communication module and obtaining the corresponding empty configuration data of the object edition from the document configuring module and writes the value of each sub-item in the corresponding configuration data of the existing edition according to a preset mode into the corresponding empty configuration data of the object edition; the document configuring module is used for storing the related configuration documents of the object edition in advance. The device realizes the automatic compatibility of the configuration data of different software editions during the edition of the base station upgrading process, thus simplifying the upgrading complexity of the base station and effectively ensuring the correctness of the upgrading of the configuration data.
Owner:ZTE CORP

Lane line detection method based on straight lines with maximum length

The invention provides a lane line detection method based on straight lines with the maximum length.The lane line detection method includes the steps that 1, the lower half of a driving image is cut out, and edge detection is conducted on the lower half, an image is obtained after edge detection, and Hough straight line expansion is conducted on the image obtained after edge detection; 2, the straight lines, with the maximum length, located at the left side and the right side of the vertical center line of the image are selected from straight lines obtained through Hough straight line expansion; 3, the straight line, with the maximum length, on the left side is used as the left edge, the straight line, with the maximum length, on the right side is used as the right edge to define a binarization processing region, and the binarization processing region is processed in a binarization mode to obtain a binarization graph; 4, Hough straight line detection is conducted on the binarization graph, and the left and right straight lines close to the vertical center line of the image are selected as the true left and right lane lines.Color and shape information of lane line markers is fully used, and correctness of detected lane lines is ensured by using the method based on the straight lines with the maximum length and gray scale verification.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Data loading method and device

The invention discloses a data loading method and a data loading device, which belong to the field of databases. The method comprises the steps of: creating a partition table according to partition types, wherein the partition table comprises partition fields; reading data to be loaded line by line; obtaining partition fields of the data in the line according to partition information in the partition table; determining the subordinative partition of the data in the line in the partition table according to the partition fields of the data; and loading the data in the line into the corresponding partition. The device comprises a creating module, a reading module, an obtaining module, a determining module and a loading module. The method and the device disclosed by the invention have the advantages that the partition fields of the data are obtained according to the partition information of the partition table, the subordinative partition of the data in the partition table is determined, the data in the line is automatically loaded into the corresponding partition, and the automatic data loading on a distributed file system is realized, so the data is ensured to be loaded into the correct partition, and the data loading error caused by the manual partition specifying is avoided.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Detection method for acute biological toxicity of drinking water contained in plastic bottle

The invention relates to a detection method for the acute biological toxicity of drinking water contained in a plastic bottle, belonging to the technical field of drinking water detection. The method comprises the following steps: preparing a bacterial liquid used in tests from a fresh bacterial liquid or a bacterial liquid of freeze-dried powder, preparing a drinking water sample liquid, a control sample liquid, and a detection sample liquid for a plastic bottle, preparing a set of sample parallel samples by using the drinking water sample liquid or the detection sample liquid for the plastic bottle, then preparing a set of control parallel samples, adding 0.1 ml of fresh bacterial liquid or 0.05 ml of bacterial liquid of freeze-dried powder to each set of parallel samples, respectively placing for 15 min, determining the illumination intensity of one sample in each small test cup by a luminescence detecting device, and then calculating the relative illumination intensity. Compared with the prior art, the invention uses a freshwater luminescent bacterium peculiar to China, Vibrio-qinghaiensissp, as a detection strain, and the luminescent bacteria can grow and give out light without sodium chlorides. The invention has the advantages that the physical and chemical characteristics of the samples can not be changed, the correctness of the tests is ensured, and the detection speed is high.
Owner:EAST CHINA NORMAL UNIVERSITY

Real-time data acquisition and data processing integrated field measuring method of rail datum network

ActiveCN102168396AGuaranteed validityGuaranteed correctnessMeasuring apparatusReal time data acquisitionData processing
The invention relates to a real-time data acquisition and data processing integrated field measuring method of a rail datum network. In the known rail datum network, a method of respective indoor processing and field processing is adopted, data acquisition software is adopted in operation to collect data in the field, the data is stored into a format required by indoor calculation in real time, the data is collected and led into indoor software to be processed and calculated, and the field observed value is checked indoors, therefore, rework is easily caused. The real-time data acquisition and data processing integrated field measuring method combines indoor data acquisition with field data processing of the rail standard network, ensures that completes the two procedures at the same time in the same place and rework can be carried out on unqualified stations in time in the data acquisition process, therefore, the effectiveness and the accuracy of field data acquisition are effectively ensured, and the influence on the progress of work caused by unqualified field calculation and field rework is avoided; and the data processing algorithm is accurate and reliable, the system has the functions of gross error detection and analysis, the unqualified data is automatically removed in the processing procedure, and the accuracy and the reliability of the result can be greatly improved.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Method for ensuring safety and success of updating of line-card software in distributed OLT system

The invention provides a method for ensuring safety and success of updating of line-card software in a distributed OLT system. The method includes the steps of adding an updating mirror image head portion to an updating mirror image file, verifying the content of the updating mirror image head portion and the content of an updating mirror image after the updating mirror image is well downloaded through a line card, then, conducting backup and verification on the mirror image running in the line card, and finally conducting backward read verification on the burnt mirror image on the line card. According to the method, correctness of the updating mirror image can be ensured, the problem that the updating process is finally unsuccessful due to the fact that updating is continued when the updating mirror image is downloaded and then changed due to the network transmission problem can be solved, the problem that the software system of the whole line card can not roll back after the burning motion is unsuccessful due to the problem of the mirror image can be solved, and the problem that the FLASH motion is successful while the burning of the mirror image is incorrect due to other causes can be solved.
Owner:PHICOMM (SHANGHAI) CO LTD

Substation configuration description (SCD) calibration method based on model objectification semantics

InactiveCN103077093AGuaranteed correctnessReduce the number of frequent irrigation devicesFault responseIntelligent electronic deviceNODAL
The invention discloses a substation configuration description (SCD) calibration method based on model objectification semantics, and the method mainly comprises the following steps that (1) the detection contents of the communication part, the intelligent electronic device (IED) part and the DataTypeTemplates part of an SCD document are determined; (2) an SCD document node in the SCD document is created into an RDF Schema model, and the RDF Schema model carries the SCD document node in the SCD document; the SCD document is analyzed and controlled to judge whether grammar inspection or semantic inspection is needed; then grammar inspection and semantic inspection are respectively carried out according to an analysis, control and judgment result; and finally a grammar inspection report and a semantic inspection report are respectively obtained. The SCD calibration method based on model objectification semantics has the beneficial effects that the problem of the repeated rework caused by SCD semantic mistakes during a joint debugging process is effectively solved, the times for an equipment manufacturer to frequently lower a device are reduced, the SCD is updated on the premise of ensuring the accuracy of the SCD, so that the working efficiency is greatly improved, and the debugging cycle is shortened.
Owner:STATE GRID SHANDONG ELECTRIC POWER +2

Distributed deployment method for large-scale wireless sensor network testing and debugging

InactiveCN102026227AGuaranteed correctnessStrong Universal CompatibilityNetwork topologiesWireless sensor networkServer
The invention discloses a distributed deployment method for a large-scale wireless sensor network testing and debugging distributed deployment method. The method is suitable for the establishment of debugging and texting network of the wireless sensor network. The method comprises the following steps: the nodes to be tested in a wireless sensor network are connected with different adapter plates according to different interface modes, the adapter plates are utilized to ensure that the sensor nodes of different kinds and different operating systems are compatible; the nodes are all connected with debugging data collecting and processing gateways through USB ports, the collecting and processing gateways are connected with a control server through an Ethernet or a wireless network; and a time synchronization scheme is adopted to constitute a distributed deployment architecture. The number of the data collecting and processing gateways can be increased to realize the large-scale network extension; and the data collecting and processing gateways are connected to a center control server in same and peer-to-peer modes on the basis of TCP/IP, the data collecting and processing gateways can avoid mutual interference, so that the reality and accuracy of debugging data can be ensured.
Owner:GUANGZHOU HKUST FOK YING TUNG RES INST

Intelligent monitoring system based on camera monitoring

The invention relates to the field of biometric identification, and provides an intelligent monitoring system based on camera monitoring. The system comprises a camera assembly, a processing module, an identification module, a storage module, a display module and a control module that can control the opening of a door, the camera assembly comprises two cameras arranged back to back and a cleaningmechanism, the two cameras are connected by a mounting piece, the cleaning mechanism comprises a cleaning chamber and a cleaning tube, a driving member is arranged in the cleaning chamber, and the driving member can drive the mounting piece to rotate; both ends of the cleaning tube pass through the a side baffle to stretch into the cleaning chamber, and an air inlet fan is arranged at the air inlet of the cleaning tube; a power supply circuit of the air inlet fan is arranged at the air outlet of the cleaning tube; the system further comprises a detection module for detecting image informationgenerated by the processing module, and outputting a starting signal to the cleaning mechanism when it is detected that the image information is a fuzzy image; and a confirmation module installed on auser terminal and capable of sending a control signal to the control module.
Owner:重庆轩腾科技有限公司
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