39results about How to "Achieve prediction" patented technology

The invention discloses a control method and device for an air conditioner compressor, and an air conditioner. The control method comprises the step of circularly executing the following winding switching control processes: the temperature difference between the real-time indoor temperature and an indoor temperature target value is calculated, and the real-time indoor temperature difference is obtained and compared with a first set indoor temperature difference threshold; if the real-time indoor temperature difference is not less than the first set indoor temperature difference threshold, windings of the compressor are controlled to be connected in a triangle mode; and if the real-time indoor temperature difference is less than the first set indoor temperature difference threshold, the windings of the compressor are controlled to be connected in a star-shape mode. By applying the control method, overall operation performance of the air conditioner can be improved.

The invention provides a method, device and system for identifying user services. The method comprises the following steps of receiving the user identity characteristics uploaded by a background system of a business hall; matching the user identity feature with the pre-stored identity identifier of the candidate user to obtain the user identity data corresponding to a target user whose user identity feature is matched; inputting user characteristic data corresponding to the target user into a user model and outputting service processing information of the target user; and sending the service processing information of the target user to the background system of the business hall. The invention realizes the pre-judgment of the service needed by the users, improves the efficiency of the service processing of the business hall, and shortens the waiting time of the users.

The invention provides a fraud number identification method, device and equipment, and a computer readable storage medium. The method comprises the following steps: acquiring identification information of at least one target identifier of which the card activating time is smaller than a preset first time threshold; determining current position information of the target identifier for each target identifier, and setting a first assignment for the target identifier according to the position information; determining a position trajectory of the target identifier in a preset second time threshold,and setting a second assignment for the target identifier according to the position trajectory; setting a third assignment for the target identifier according to a user identifier in the identifier information and a preset blacklist; setting a fourth assignment for the target identifier according to the identification information and social information corresponding to the identification information; and calculating a fraud index corresponding to the target identifier according to the first assignment, the second assignment, the third assignment, the fourth assignment, and a preset algorithm.Therefore, the pre-judgment of fraud numbers can be realized, economic losses to users can be avoided and the user experience can be improved.

The invention discloses a model-free transient stability situation estimation method based on data drive. The method comprises: based on the state space reconstruction theory, decomposing a transient power angle stability analysis problem of a power system into an MLE (Maximum Likelihood Estimation) trajectory analysis problem of the most seriously distributed unit on the relative power angle curve of the system; then, improving the classical MLE calculation method by using a recursive least square algorithm; further giving a parameter optimization method for the transient power angle stability problem of the power system in MLE calculation; and finally, giving a judgment basis for transient power angle stability in combination with the MLE curve of the seriously distributed unit on the system, thereby realizing online estimation of transient power angle stability situation. The method for online calculation directly using measurement information has high engineering application value.

The invention discloses a monitoring method and a device for electric power equipment. The method comprises the following steps: monitoring the relevant operation data of the electric power equipment;judging whether each data in the relevant operation data exceeds a preset threshold value; If each data in the related operation data does not exceed a preset threshold value, the current normal operation probability of the electric power equipment is determined according to the related operation data, and whether the operation state of the electric power equipment is abnormal is determined according to the current normal operation probability of the electric power equipment. The technical scheme can not only monitor the operation state data of the electric power equipment, but also comprehensively consider the influence of the environmental data and/or the point table data on the operation state of the electric power equipment when monitoring the operation state of the electric power equipment, so as to make the monitoring result of the operation state of the electric power equipment more accurate.

The invention discloses a real-time online monitoring system for the health state of an escalator. The system is composed of a station-level system server and a mobile terminal. The station-level system server provides service for escalator operators; centralized monitoring of the escalator by on-duty command staff can be realized; acquisition, processing and storage of monitoring data required bythe escalator are realized; the mobile terminal meets the maintenance and repair work requirements of on-site maintenance and repair personnel, can be connected to the station-level system, and realizes interaction with the station-level system, like maintenance notification, urgent repair order dispatch, fault early warning and the like, unified management is facilitated, the system is used for24-hour monitoring of the running state of an escalator of a rail transit station and key parts, signals like escalator data, alarms and the like are collected through a high-speed microprocessor, theproblems that only the running state is monitored, alarms are given after faults occur, various escalators are monitored and contained, and the false alarm rate and the missing report rate are high are solved, and escalator fault early warning and maintenance management are achieved.

The embodiment of the invention relates to the technical field of distributed resource management and scheduling systems, and discloses a NodeManager state management method and device in a cluster and computing equipment. The method comprises steps of the network load information of a cluster being collected, and a hardware state of the cluster being evaluated according to the network load information; determining the health state of the nodes in the cluster according to an evaluation result; and when the state of the node is unhealthy, carrying out offline operation on the NodeManager. The method is advantaged in that pre-judgment and automatic offline before a NodeManager fault are achieved, stable operation of the system is guaranteed, and meanwhile the situation that when a node hostis preempted by a plurality of application programs, Container distribution fails, and consequently tasks fail is avoided.

The invention discloses an interlaced and overlapped object tracking method based on situation analysis and feature extraction technologies in a sea radar tracking system. The method is characterized in that situation information around a target ship is established, and character information of other ships around the target ship is simultaneously grasped; whether the target ship is overlapped with other ships (which cannot be distinguished by radar echoes) is judged according to the situation information, merged situation is established for an overlapped target track, character information of the ship merged with the target ship is recorded, and then the merged objects are continuously tracked; and when the merged objects obtained by situation analysis can be distinguished by the radar echoes, the merged objects are divided according to the character information, and the tracking process of the overlapped objects in a complex environment is completed. According to the invention, the situation analysis and character extraction methods are utilized to solve the problem that radar echoes overlap and normal tracking is unavailable, the tracking capability over objects in complex environments such as meeting and interlacing environments is substantially improved.

The invention relates to a detection system and method for a muddy water interface in a thickener, and belongs to the field of muddy water interface detection. The detection system comprises a pressure detection device, a cleaning device and a controller (3); the pressure detection device is composed of a ceramic pressure sensor (1) and a fixed polar plate (2), and the cleaning device is composedof a pipeline (3), a nozzle (4) and a water pump (5). The pressure detection device is longitudinally installed on the inner wall of the thickener, the cleaning device is installed beside the pressuredetection device in an attached mode, and the controller (6) is connected with the pressure detection device and the cleaning device. Longitudinal pressure distribution in the thickener is detected through the pressure sensor, pressure data changes are analyzed, and a mud-water interface in the thickener is judged. According to the invention, a mud-water interface of the thickener can be accurately and reliably detected in real time, and the method has important practical significance for pre-judging the sedimentation effect and automatically controlling the dosage of a flocculating agent.

The invention provides a construction site safety behavior monitoring work method in a blockchain network state, and the method comprises the following steps: S1, obtaining construction site image data through an image collection module, carrying out the screening of a construction site worker image, obtaining a region frame (FRAME) image of a construction site worker feature, and carrying out theequal-proportion image amplification; S2, amplifying the construction site image in equal proportion, acquiring a human body characteristic histogram, and performing safety behavior identification onthe human body characteristic histogram through a behavior monitoring model; S3, after identification is completed, clustering estimation is performed on the construction site security behavior images, and construction site behaviors lower than an estimated value are determined as dangerous behaviors and are synchronized with the blockchain node data.

The invention discloses an agricultural big data service system constructed based on the Internet technology. The agricultural big data service system comprises an SAAS layer, a DAAS layer, a PAAS layer, a data processing and analyzing platform and a background management platform which are established. The SAAS layer uploads the acquired data and collects and summarizes the information, and the summarized information enters an agricultural management platform for SAAS resume information collection; the DAAS layer performs big database analysis and sharing on the information collected by the SAAS layer to form platform resources; and the PAAS layer performs geographic position distributed data storage on big database analysis sharing platform resources of the DAAS layer, then integrates the data, calculates and processes the integrated data, and reads the initialized data into a background management platform for background reading and external supervision. According to the invention,the data is subjected to unified information collection through the internet big data, and the internal and external big data is established and analyzed, so that the agriculture is pre-judged by theinternet big data service system, and the invention has great significance in mastering the internal relation and law of the agricultural information.

The invention discloses a method and device for controlling an air conditioner compressor based on the air speed of an indoor unit. The method comprises the step of circularly executing the followingwinding switching control processes: the real-time indoor unit air speed of the air conditioner indoor unit is determined and compared with a first set air speed threshold; if the real-time indoor unit air speed is not less than the first set air speed threshold, windings of the compressor are controlled to be connected in a triangle mode; and if the real-time indoor unit air speed is less than the first set air speed threshold, the windings of the compressor are controlled to be connected in a star-shape mode. By applying the method, overall operation performance of an air conditioner can beimproved.

The invention discloses an online diesel engine air valve state detection method. The method comprises the following steps: monitoring the instantaneous rotating speed, cylinder cover vibration, diesel consumption, discharge temperature and cooling water temperature of a diesel engine through a sensor; converting signals collected in the first step into standard electric signals to be input in a data acquisition card; carrying out acquisition and analog-to-digital conversion on the standard electric signals by the data acquisition card; by coupling the instantaneous speed of the diesel engineand the vibration of a cylinder, converting the vibration in a time domain into an angle domain corresponding to a crank angle for order analysis; measuring an order ratio data matrix shown in the specification of the diesel engine under normal conditions; introducing the order ratio data matrix in a formula to change the diesel consumption x g/kWh, discharge temperature y K and cooling water temperature z K into margin coefficients; and measuring an order ratio data matrix B in arbitrary conditions, and comparing B with eta A, wherein, when B is greater than eta A, an air valve of the dieselengine is abnormal. According to the method, most faults of the air valve are judged in advance, so that a user is reminded of overhauling and replacing the air valve in advance.

The invention provides a decision-making method and a system for the regulation and control moment of a temperature control system. The method comprises the following steps: building a house cold andhot characteristic equivalent model, and determining the coupling relationship between outdoor temperature, heating capacity or refrigerating capacity and indoor temperature; calculating real-time room temperature by combining hourly weather forecast and real-time load capacity based on the coupling relationship; taking a preset temperature range as a standard, judging whether the real-time room temperature is within the temperature range or not, and starting to change the output plan of each piece of equipment at the moment if the room temperature is not within the temperature range so that the indoor temperature tends to be within the temperature range. According to the method, the phenomenon that the optimization time of the temperature control equipment is set as a fixed value by taking an empirical value as a guide in the existing theory is changed; the situation that the optimization time cannot meet the user requirements or resources are wasted is prevented; the indoor temperature is kept within the human body comfortable temperature range according to the theoretical model; and the persuasion of a time-scale rolling optimization operation strategy is further improved.

The invention belongs to the technical field of refuse disposal, and particularly relates to a method of predicting the temperature of an aerobic ventilation refuse landfill. The prediction method comprises the following steps of: determining the basic attribute parameters of the refuse landfill; calculating the temperature prediction result of a refuse dump under the basic attribute parameters; determining the temperature result of the refuse dump; and correcting the temperature result obtained by predicting. The method can provide a solution for predicting the temperature of the refuse dumpin the aerobic ventilation process, can avoid the outbreak of fire and explosion accidents caused by mixed gas, and guarantees the high-efficiency operation of an aerobic ventilation system to the maximum extent, and has relatively good practicability and flexibility in the aerobic ventilation project.

The embodiment of the invention provides an XSS attack detection method and device. The method comprises the following steps: detecting a received user request, and judging whether the received user request is an XSS attack or not; if the attack is the XSS attack, extracting an XSS attack vector from the user request; and acquiring a response message corresponding to the user request, putting the response message into the JS sandbox to run, executing a monitoring event, comparing the monitored event corresponding to the response message with the XSS attack vector, and if the comparison result is consistent, determining that the XSS attack is successful. For the characteristics of XSS attacks, the XSS attack vector and the operation result of the response message in the JS sandbox are extracted, the extracted attack vector is compared with the operation result of the JS sandbox, the attack result is researched and judged, and the maintenance cost is reduced.