41results about How to "Realize online verification" patented technology

The invention relates to an online checking method for a high-tension current transformer, which can check the high-tension current transformer in the field operation with high accuracy. The online checking method is characterized in that in a return circuit of the high-tension current transformer to be checked, a high-accuracy pincerlike hollow coil based on a PCB (Printed Circuit board) is connected in series, so that the high-tension current transformer is used as a standard current transformer, the signal of the high-tension side is digitized and transmitted to the low-tension side through fiber transmission, the output value of the standard current transformer and the output value of the checked high-tension current transformer at the synchronized instant are compared through an external synchronous trigger signal, the digital integration algorithm and error theory algorithm are realized by using a virtual instrument in a checking platform, so that the accuracy of the checked high-tension current transformer in the field operation is checked, the cost of interruption is reduced, and the checking period of the high-tension current transformer is shortened.

The invention discloses a method for predicting nitrogen oxide mission concentration of a coal-fired unit based on the neural network. The method includes preprocessing key operation parameter unit load, NOx conversion concentration and smoke temperature of SCR (selective catalytic reduction) entry, ammonia spraying flow and NOx conversion concentration of an exhaust port, establishing a BP neural network, using the unit load, the NOx conversion concentration and the smoke temperature of the SCR inlet and the ammonia spraying flow as input values, and using the NOx conversion concentration of the exhaust port as output values to obtain prediction value of the nitrogen oxide emission concentration of the coal-fired unit. By the method, workload of operators is greatly reduced, and maintenance cost is reduced.

The invention discloses an electric vehicle off-board direct-current charger direct-current electric energy meter on-line verification system and method. The system is composed of a charging module, aload module, a measurement verification module, an industrial personal computer and related programs. By means of a virtual battery management system and a real-time pulse comparison method, direct-current charger direct-current electric energy meter on-line verification can be realized when the load module is charged; on the basis of requirements, the virtual battery management system sets different power battery types and parameters, configures charging parameters, acts on the load module, and provides corresponding loads for online verification; during a charging process, a data acquisition unit acquires detected pulses outputted by a tested direct-current electric energy meter and standard electric energy pulses outputted by a standard direct-current electric energy meter; and the number of the standard electric energy pulses is compared with the number of the detected direct-current electric energy pulses, so that the direct-current electric energy meter of a direct-current charger can be verified. With the system and method of the invention adopted, real-time online verification can be performed on the direct-current electric energy meter of an on-site off-board direct-current charger, and safe and accurate on-line verification of electric energy measurement can be realized.

The invention relates to an on-line management method of checking and tracking of job schedule abnormalities. According to the method, based on a remote interaction platform, through interaction and data conversion among a submitting end microcomputer device, an audit end microcomputer device and a server end computer system, on-line analysis of the job schedule abnormalities and on-line checking and tracking of job schedule abnormality data processing are achieved. An object oriented operation interface is published through the server computer system, data is stored in a data base server and shared by all the operators using the platform, operating authorization is controlled through authorization, and when the realtime performance of the data is ensured, the data is controlled not to be changed at will. The on-line management method of the checking and the tracking of the job schedule abnormalities is beneficial to urging a duty officer to process schedule abnormality data in time, and reducing losses caused by unordered abnormality processing.

The invention provides an on-line safety valve checking method and device. A safety valve is subjected to online checking through the device, the device comprises a force sensor mounted on a lifting rod, the force sensor is connected with a control system, the safety valve is arranged on a pressure vessel with slurry in the lower portion and steam in the upper portion, in a normal working pressure range of the safety valve, the control system controls lifting height and opening time of a valve stem of the safety valve by the device, and the device is enabled to finish checking after the slurry arrives at a valve port of the safety valve. Therefore, influence on sealing performance of the safety valve due to discharge of a viscous medium in a flash evaporator is avoided, further the operating period of the flash evaporator can be prolonged, cost in a series of working processes of detachment, lifting, transportation, checking, reassembling and the like during online and offline checking of the safety valve can be omitted, labor intensity of workers is lowered, and normal operation of companies is guaranteed.

The embodiments of the invention disclose control methods and systems, equipment and a computer memory medium. A method comprises the steps that the equipment communicates with a server and obtains activation information; and the equipment checks whether a preset activation condition is satisfied or not based on the activation information, obtains a check result and controls own state based on thecheck result.

The invention relates to the field of power system automation, in particular to a remote verification method for configuration information of an information protection substation. The remote verification method comprises the steps of constructing a data model of the configuration information of the configuration information of the information protection substation, and establishing a message communication mechanism of the information protection substation and a terminal machine, thereby realizing online verification of the configuration information of the information protection substation. Theremote verification method can realize verification of the configuration information of the information protection substation under the condition that the information protection substation does not quite operation, facilitates the operation and maintenance personnel to confirm the current running configuration, and further analyzes the configuration of the information protection substation online.

The invention discloses an oil conveying pipeline on-line density measuring device. A process main pipeline [6] of a constant-temperature electric heat tracing and thermal insulation device [17] is connected in series to a pipeline to be tested through a flange (1) [1] and a flange (2) [35] at the two outer ends, and is sequentially provided with parallel filter (1) [2] and filter (2) [38] and a differential pressure transmitter [10], a flow switch [11], a serial process valve (6) [23], a bypass manual sampling valve [14], a bypass on-line verification port (1) [8], a bypass in-situ pressure gauge [12], a bypass drainage pipeline [7], a sampling pump [3], a serial process valve (7) [24], a bypass on-line verification port (2) [37], a bypass thermal expansion safety valve [5], an on-line densimeter [4], a bypass exhaust valve [15], a bypass drainage pipeline [7] and an intelligent pressure transmitter [9] which are arranged in front of and behind the filters from the inlet end; and an instrument junction box [16] is connected with an SCADA (Supervisory Control And Data Acquisition) system.

The invention discloses a calibration method of quadrature modulation data transmitted between a baseband unit and a radio frequency unit, which comprises: 1, a module A obtains IQ data calibration values corresponding to carriers, and the carriers and the corresponding IQ data calibration values are sent to a module B; 2, the module B sends the received carriers and the received corresponding IQ calibration values thereof to a module C, respectively calculates the corresponding IQ data calibration values of the received carriers, and compares the calculated values of the corresponding IQ data calibration values of one carrier with receiving values, so as to judge the transmission between the module A and the module B; 3, the module C respectively calculates the corresponding IQ data calibration values of the received carriers, and compares the calculated values of the corresponding IQ data calibration values of one carrier with receiving values so as to judge the transmission between the module B and the module C. The technical proposal of the invention realizes the on-line calibration of all IQ data.

The invention provides a gas density relay with an online self-checking function and a checking method thereof. The gas density relay comprises a gas density relay body, a first pressure sensor, a second pressure sensor, a temperature sensor, an air pressure chamber, a pressure adjusting mechanism, an online checking contact signal sampling unit and an intelligent control unit. A gas circuit and an air pressure chamber of the pressure regulating mechanism are connected with the second pressure sensor; the pressure is adjusted to rise and fall through the pressure adjusting mechanism; and the gas density relay body is subjected to contact action, the contact action is transmitted to the intelligent control unit through the online checking contact signal sampling unit, the intelligent control unit detects a contact signal action value and/or a return value of the gas density relay body according to a density value during the contact action, verification work is completed, and maintenancepersonnel do not need to go to the site for verification. And meanwhile, the pressure regulating mechanism is not connected with the gas density relay body or an SF6 gas circuit of the electrical equipment so that a sealing requirement is reduced, reliability of a power grid is improved, and manufacturing cost is reduced.

The invention relates to a gas management system, particularly a trace gas management system and management method. The system comprises a data management system, a data collection system, a trace gas emission calculation system, a trace gas emission list and report generation system and a trace gas emission check system. A data server is arranged in the data management system. The data management system is in two-way communication connection with the data collection system, the trace gas emission calculation system, the trace gas emission list and report generation system and the trace gas emission check system and is used for storing, processing and searching data of the connected systems. According to the trace gas management system provided by the invention, online management of regional trace gas in a corresponding range can be realized, in particular, online check can be realized, a report can be generated, the cost is effectively reduced, and the efficiency is improved.

Provided in the invention is an on-line verification system for voltage and current transformers. The system is composed of a standard transformer, a verified transformer, and a PC machine. The standard transformer consists of a primary sensing unit, an acquisition transmission unit, and a main control module; the primary sensing unit is connected to the acquisition transmission unit connected tothe main control module; and the main control module is connected to the PC machine. A voltage or current signal outputted by the primary sensing unit is transmitted to the acquisition transmission unit at a low-voltage side by a shielding cable for signal processing; the outputted signal is transmitted to the main control module by a first fiber; after framing processing, the processed signal asa standard signal is transmitted to the PC machine. According to the on-line verification system, online verification the voltage and current transformers in operation is realized simultaneously by using one set of acquisition transmission unit and main control module, so that the equipment investment is saved substantially and the complexity of the system is reduced.

The invention provides a gas density relay with an on-line self-checking function and a checking method thereof. The gas density relay is used for high-voltage and medium-voltage electrical equipmentand comprises a gas density relay body, a first pressure sensor, a temperature sensor, a force measuring sensor, a driving contact actuating mechanism and an intelligent control unit. The driving contact actuating mechanism is configured to directly or indirectly drive a signal actuating mechanism of the gas density relay body to displace; the gas density relay body is enabled to generate a contact signal action; the intelligent control unit detects an alarm and/or locking contact signal action value and/or return value of the gas density relay body according to a density value of the contactaction; and verification work of the gas density relay can be completed without the need for maintenance personnel to go to the site, reliability of a power grid is improved, efficiency is increased,operation and maintenance cost is reduced, and a maintenance-free gas density relay can be realized.

The invention brings forward an object property security on-line verifying method. The method comprising: sending disclosed properties of an object to an object property security verifying device through a network; sending a verifying application to the object property security verifying device; using the object through a prior safe approach and obtaining confirmation information through the safe approach after successful use; and sending the confirmation information to the object property security verifying device to finish verifying. By using the method and device provided by the invention, on-line verifying can be realized reliably at a quite low cost.

The invention discloses an intelligent examination room monitoring robot which comprises a man-machine interaction module, wherein a shell is arranged on the man-machine interaction module, a non-complete gear driven by a power mechanism to rotate is rotationally connected to the interior of the shell through a fixed shaft, and teeth on the non-complete gear are in transmission engagement with a transmission gear; the transmission gear is coaxially and fixedly connected with a driving wheel rotating on the inner wall of the shell in a limited mode, an oval guide groove is formed in the surface of the transmission gear, a transmission shaft is fixedly connected to the circle center of the driving wheel, and a driven wheel matched with the driving wheel is rotationally connected to the inner wall of the shell through a fixed shaft; and the inner wall of the oval guide groove is slidably connected with a lifting arm. Through cooperative use of the mechanisms, the problems that in the actual use process, due to the fact that in the highly tense environment of an examination room, an invigilation teacher is prone to making mistakes, meanwhile, a large amount of manpower is consumed for invigilation, and inconvenience is brought to use are solved.

The invention disclose a calorimeter online detector, which is characterized by comprising a detection meter head, a substrate, an impeller and a counting mechanism, wherein the detection meter head is arranged at the tail end of the substrate, the impeller is rotationally mounted at the front end of the substrate, and the counting mechanism is arranged between the impeller and the detection meter head. The calorimeter online detector has the advantage that, when a calorimeter is in verification, the calorimeter online detector is directly mounted on the mounting base of the calorimeter, so that the calorimeter can be online verified. Thereby, the service life of the calorimeter can be maximally prolonged, and the expense for detecting the calorimeter also can be greatly reduced.