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34results about How to "Meet timeliness needs" patented technology

Smart home Internet of Things communication method based on AliCloud IoT Hub platform

The invention relates to the technical field of smart home and discloses a smart home Internet of Things communication method based on an AliCloud IoT Hub platform. On one hand, subscription message transmission between a network server and a home gateway is realized on an AliCloud IoT Hub platform by adopting an MQTT communication protocol. The timeliness of information transmission can be guaranteed by using the communication characteristics of the MQTT communication protocol, so that after a user terminal sends out the control request, target household equipment can execute and respond mostquickly, the receipt receiving time is shortened to the greatest extent, the use state of the household equipment can be updated quickly, and the timeliness requirement of a user is met; and on the other hand, the home gateway only needs to subscribe to one publish theme and one subscribe theme to complete the operation of a plurality of devices in the room, so that the purposes of economy, practicability and easiness in popularization can be achieved. In addition, the invention has the characteristics of gateway activation automation, convenience in equipment addition, easiness in multi-house management and the like, can provide a simple operation interface, and is convenient to operate.
Owner:无锡青起长升智能科技有限公司

A mineral flotation foam image color correction method and a foam color detection system

The invention discloses a mineral flotation froth image color correction method and a froth color detection system. The mineral flotation froth image color correction method comprises the following steps of collecting the froth images under specific illumination to form a reference color gamut sample set of a froth image; training two generative adversarial networks A and B for foam image color correction under unknown illumination; and finally, calculating statistics such as the mean value, the skewness and the kurtosis of the corrected foam image in an HSV space and a CIELab space to form afoam color feature vector which can be used for concentrate grade estimation and working condition evaluation in the flotation process, wherein A and B share two same generators G1 and G2, but have respective independent discriminators; and through confrontation training, the color cast foam image under any illumination can be converted into color representation under a reference color gamut by the generator G1, and the structural details of the original image are kept unchanged. The color detection system has an online model correction function, and can effectively detect the color characteristics of the floating foam under various unknown illumination conditions under reference illumination.
Owner:HUNAN NORMAL UNIVERSITY

Unmanned vending machine capable of discharging goods in rotating disc mode and goods discharging method thereof

The invention discloses an unmanned vending machine capable of discharging goods in a rotating disc mode. The vending machine comprises a machine body and a rotating disc mechanism. A display screen is arranged on a front surface of the machine body, a keyboard is arranged below the display screen, a goods taking box is arranged below the rotating disc mechanism, a goods taking port is arranged inthe goods taking box, and the goods taking port is arranged in a lower portion of the front surface of the machine body. A partition plate is arranged between the rotating disc mechanism and the goods taking box, and a goods outlet is arranged in a center of the partition plate. The rotating disc mechanism comprises a circular baffle plate and a plurality of storage rotation discs which are fixedinto the machine body. Each storage rotation disc comprises a plurality of side plates which are arranged in a radial direction in a diverging mode, a fan-shaped storage space is formed between the adjacent side plates, and a notch corresponding to the goods outlet is arranged under the circular baffle plate. A turntable wheel type structure is adopted, one article is placed in each fan-shaped storage space, and a turntable is controlled to rotate once or multiple times according to a purchase quantity of a user so that batch shipment in one transaction is realized.
Owner:安徽内售网络科技有限公司

Photoelectric correlative turbine liquid flow meter and cascade application thereof

ActiveCN106052762AOvercome the disadvantage of low signal strength and can only be used for pure waterAvoid pollutionMeasurement devicesImpellerWater treatment system
The invention relates to a photoelectric correlative turbine liquid flow meter. The photoelectric correlative turbine liquid flow meter comprises a casing, wherein the casing comprises a fluid conduit and a data transmission warehouse, wherein the data transmission warehouse is in bridge connection with an upper portion of the fluid conduit and covers the fluid conduit from two sides of the fluid conduit, and a correlative light path needed by a photoelectric T-R tube on a transmission control board is provided; a multi-functional front diversion rack, an impeller assembly, a diversion plug assembly and a retainer ring are sequentially arranged from a fluid inlet to a fluid outlet of the fluid conduit. According to the photoelectric correlative turbine liquid flow meter, multiple monitoring points of a water treatment system can be simultaneously monitored through a cascade liquid flow meter, a built-in micro processor of a host computer realizes information gathering, an original analysis algorithm and a digital interface are employed, the digital information including salt rejection and a dynamic waste water ratio and the state information including water leakage alarm and reversal connection indication are provided; two modes of slave computer triggering and host computer local triggering are employed, states of cascaded liquid flow meters are checked, calculation resource waste of state collection of all the slave computers carried out during regular polling of a host computer can be avoided, and communication efficiency and timeliness of a cascaded system are improved.
Owner:徐李

Numerical model rainfall forecast correction method and system and storage medium

The invention discloses a numerical mode rainfall forecast correction method. The correction method comprises the steps of determining a training period time window participating in rainfall forecastscoring statistics according to a first time period; extracting a numerical mode rainfall forecast value and corresponding rainfall observation data in a training period, and generating a training data set; respectively carrying out air elimination processing on the rainfall forecast values in the training period; calculating a rainfall forecast score when the rainfall value reaches a first rainfall threshold and above according to the rainfall observation data to obtain a threshold score sequence; taking the rainfall threshold value when the rainfall forecast score value is the highest as theoptimal emptying threshold value of the forecast period; correcting the rainfall forecast numerical value smaller than the optimal air elimination threshold value in the forecast period; and correcting the rainfall forecast value. According to the correction method of the numerical model rainfall forecast, the problem of null report of small-magnitude rainfall can be effectively reduced, and theaccuracy and practicability of the rainfall forecast product for forecasting sunny and rainy days are remarkably improved. The invention further discloses a system and a storage medium.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD

Identity data synchronization system and method based on timed tasks

The invention discloses an identity data synchronization system and a method based on a timing task, and aims to provide the identity data synchronization system and the method based on the timing task, which are efficient in data synchronization. The system comprises a timing task management module, an application system management module, a synchronization demand management module, a synchronization data processing module, a failure request management module, a synchronization strategy configuration module and a synchronization log auditing module. The timed task management is used for providing a main timed task and an auxiliary timed task; the application system management is used for managing a third-party application system integrated to the unified identity authentication platform,providing an application information configuration function and maintaining information for identity authentication and configuration of identity information synchronization; the synchronization demand management is used for monitoring the change operation of the user identity information in the system in real time, and generating a synchronization demand in combination with the application information opened by the user once the identity information is changed; and the synchronous data processing is used for generating final synchronous interface communication data for initiating an interfacerequest.
Owner:YUNNAN KUNGANG ELECTRONICS INFORMATION TECH CO LTD

A smart home IoT communication method based on Alibaba cloud iot Hub platform

The present invention relates to the field of smart home technology, and discloses a smart home Internet of Things communication method based on the Alibaba Cloud IoT Hub platform. On the one hand, the MQTT communication protocol is used to realize the communication between the network server and the home gateway on the Alibaba Cloud IoT Hub platform. Subscription message transmission can use the communication characteristics of the MQTT communication protocol to ensure the timeliness of information transmission, so that after the user terminal sends a control request, the target home device can execute and respond as quickly as possible, and minimize the time for receiving the receipt , can quickly update the use status of home devices to meet the user's timeliness needs; on the other hand, because the home gateway only needs to subscribe to one publishing topic and one subscription topic, it can complete the operation of multiple indoor devices, which can be economical and practical. To achieve the purpose of easy promotion. In addition, it also has the characteristics of automatic gateway activation, convenient addition of equipment, and easy multi-house management, and can provide a simple operation interface for easy operation.
Owner:无锡青起长升智能科技有限公司

Photoelectric through-beam turbine flow meter and its cascaded application

ActiveCN106052762BOvercome the disadvantage of low signal strength and can only be used for pure waterAvoid pollutionMeasurement devicesImpellerWater leakage
The invention relates to a photoelectric correlative turbine liquid flow meter. The photoelectric correlative turbine liquid flow meter comprises a casing, wherein the casing comprises a fluid conduit and a data transmission warehouse, wherein the data transmission warehouse is in bridge connection with an upper portion of the fluid conduit and covers the fluid conduit from two sides of the fluid conduit, and a correlative light path needed by a photoelectric T-R tube on a transmission control board is provided; a multi-functional front diversion rack, an impeller assembly, a diversion plug assembly and a retainer ring are sequentially arranged from a fluid inlet to a fluid outlet of the fluid conduit. According to the photoelectric correlative turbine liquid flow meter, multiple monitoring points of a water treatment system can be simultaneously monitored through a cascade liquid flow meter, a built-in micro processor of a host computer realizes information gathering, an original analysis algorithm and a digital interface are employed, the digital information including salt rejection and a dynamic waste water ratio and the state information including water leakage alarm and reversal connection indication are provided; two modes of slave computer triggering and host computer local triggering are employed, states of cascaded liquid flow meters are checked, calculation resource waste of state collection of all the slave computers carried out during regular polling of a host computer can be avoided, and communication efficiency and timeliness of a cascaded system are improved.
Owner:徐李

Distributed control system measurement point data import method, system, equipment and medium

The invention discloses a method, system, equipment and medium for importing measuring point data of a decentralized control system. The importing method includes the following steps: modifying the pre-acquired measuring point inventory into an importing point table suitable for DCS; traversing the importing point table In the measuring point, the measuring point in the described imported point table is constructed as the measuring point object of DCS and added to the point table object linked list; the measuring point object is taken out by traversing the point table object linked list, and the measuring point object is checked; The measuring point objects checked by the parameters are added to the imported measuring point list, and the measuring point objects that do not meet the parameter inspection are added to the error information linked list; based on the pre-acquired import type, the measuring point objects in the imported measuring point linked list are filled into the DCS data stack , complete the import of measuring points to form DCS data configuration. The invention can solve the technical problems of low efficiency and poor accuracy when adding a large number of data measuring points or modifying the parameters of the measuring points in the existing DCS.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

Cooperative vehicle positioning method based on fusion of GPS and vehicle ranging information

The invention discloses a cooperative vehicle positioning method based on GPS and vehicle-mounted distance measurement information fusion, and solves the defect problem of an existing SDR method. Themethod comprises the following steps: establishing an observation model considering noise interference; inputting the position information data into an observation model, constructing a two-dimensional space, combining the coordinate information including observation noise, Internet of Vehicles and vehicle-mounted GPS data to establish a fusion model, introducing auxiliary variables to simplify the fusion model into a QCQP optimization problem while based on a maximum likelihood estimation method, and outputting optimal vehicle position information. The method provided by the invention can theoretically ensure convergence to the globally optimal solution of the model problem, and the divergence condition of the SDR method does not occur. According to the iterative algorithm, the positive semidefinite programming problem does not need to be solved, each step has an analytical expression, the calculation complexity cannot be rapidly increased along with increase of the number of vehicles, and the timeliness requirement of Internet of Vehicles application can be met.
Owner:SOUTHWEST UNIVERSITY FOR NATIONALITIES

Measurement point data import method of distributed control system, system and equipment and medium

The invention discloses a measurement point data import method of a distributed control system, a system and equipment and a medium. The import method comprises the following steps: modifying a pre-acquired measurement point list into an import point table suitable for a DCS; traversing the measurement points in the imported point table, constructing the measurement points in the imported point table into measurement point objects of the DCS, and adding the measurement point objects into a point table object linked list; traversing the point table object chain table to take out the measurement point object, and checking the measurement point object; adding the measurement point objects conforming to the parameter check into an imported measuring point linked list, and adding the measurement point objects not conforming to the parameter check into an error information linked list; and based on a pre-acquired import type, filling the measuring point objects imported into the measuring point linked list into a DCS data stack, and completing measuring point import to form DCS data configuration. According to the invention, the technical problems of low efficiency and poor accuracy when a large number of data measurement points are added or measurement point parameters are modified in the existing DCS can be solved.
Owner:XIAN THERMAL POWER RES INST CO LTD +1
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