177 results about "Telecommand" patented technology

The invention discloses a multi-parameter identification based secondary system fault diagnosing method for an intelligent substation. The multi-parameter identification based secondary system fault diagnosing method is mainly applicable to digital substation accordant with IEC61850 communication protocol. The method includes: comprehensively analyzing multi-dimensional parameters including various alarm information, telemeasuring data, telecommand states and the like of a process layer, a spacer layer, a station control layer through a network message recording and analyzing device, monitoring states of secondary devices in real time by utilizing original messages as analysis data and utilizing recording of transient state of device exception and long-term monitoring of operation states as means, and realizing fault diagnosis and state monitoring of the secondary system of the intelligent substation. The multi-parameter identification based secondary system fault diagnosing method for the intelligent substation has the advantages in two aspects including that normal states of the secondary device of the intelligent substation can be monitored, background data and maintenance reference are provided for state maintenance; exception states are identified, quick fault diagnosis is realized, effective instruction can be provided for transport maintenance, and convenience in maintenance of the substation is improved.

The invention discloses a filtration system of a mis-telecommand scheduling end of a transformer substation, which is connected with an supervisory control and data acquisition (SCADA) system and comprises a real-time data acquisition module, a telecommand processing center module, a telecommand display and confirmation module and a history management module, and an expert processing system comprises a signal analyzing and processing knowledge base, a signal analysis module and a human-computer interface. The invention also discloses a filtration method of the mis-telecommand scheduling end of the transformer substation, comprising the following steps: 1. the real-time data acquisition module collects power grid static information and real-time telemetering telecommand data information in the SCADA system; 2. when the expert processing system in telecommand processing center module analysis judges whether the real-time telemetering telecommand data information is a normal telecommand signal or a mis-telecommand signal; and 3. the telecommand display and confirmation module marks the signal which is judged to be in normal telecommand as a normal telecommand signal mark, marks the signal which is judged to be in mis-telecommand as a mis-telecommand signal and filters the mis-telecommand signal. The accuracy rate of the system signal and the power grid scheduling efficiency are improved by using the system and the method.

The invention relates to an intelligent distribution network fault recognition method. The method includes the steps of firstly, scheduling switch accident tripping information of 110 kV or lower in an SCADA system, fault report records of a production management system (PMS) and distribution network fault data in a distribution network automated DMS by having access to power grids of all power supply companies; secondly, collecting telecommand displacement warning, secondary telecommand warning, the telecommand SOE, telemetering sample data and remote control operation record information in a local power supply jurisdiction, then sending the telecommand displacement warning, the secondary telecommand warning, the telecommand SOE, the telemetering sample data and the remote control operation record information to a distribution network fault information statistical analysis database, and forming TCM events by comparing and matching the telecommand displacement warning, the secondary telecommand warning, the telecommand SOE, the telemetering sample data and the remote control operation record information with tripping information reported by a fault repair management system TCM; thirdly, forming a highly-suspicious advance unaudited event set by applying fault judgment logic, comprehensively analyzing distribution network fault data on this basis, and obtaining effective fault tripping statistical data by analyzing fault causes. Compared with the prior art, the method has the advantage that the reliability and safety of the distribution network power supply are improved.

The invention discloses a protecting and measuring integrated comprehensive distribution box. A distribution transforming monitor terminal comprises an analog acquisition module, a digital signal processor, a CPU, a clock module, a digital memory, an I/O module and a communication module. The analog acquisition module is connected with the CPU through the DSP. The clock module, the digital memory, the I/O module and the communication module are respectively connected with the CPU. The distribution transforming monitor terminal further comprises a control interface, a state quantity acquisition interface and a communication interface. A reactive compensation switch, an inlet line switch, a control power switch, a feeder line switch and a reactive compensation device are connected with the distribution transforming monitor terminal through the interfaces. The protecting and measuring integrated comprehensive distribution box can integrally monitor and manage a distribution transformer and a low-voltage distribution power grid in a telemetering mode, a telecommand mode, a remote regulating mode and a remote control mode, and can automatically coordinate and adjust the action modes and operation modes of various devices in the distribution box according to factors such as fault types, fault ranges and the urgent degree.

Methods and apparatus for processing of a distributed remote shell command are disclosed. In some embodiments, a target host receives from a client a remote shell command specifying an operation to be performed by an operating system at the target host. The target host performs the specified operation and formulates a response that has a first part containing target host identification data for the target host and a second part showing a result of performance of the specified operation. The target host issues the response to the client.

The invention discloses a video intelligent tracing system for an RFID (Radio Frequency Identification Device). The video intelligent tracing system comprises a video system; and the video system comprises video equipment, a video monitoring platform, a monitoring server, hard disk recording equipment and a monitoring wall. The video intelligent tracing system is characterized in that the video system is connected with a radio frequency identifying system through a long-distance order interface. Furthermore, the radio frequency identifying system comprises RFID reading-writing equipment, RFID middleware, an RFID monitoring platform, an RFID application server and an RFID data server. According to the video intelligent tracing system provided by the invention, information about identified personnel, objects and the like is used as a triggering means to be combined with the bound video monitoring system; and relevant video records can be automatically spliced into a video record collection, so that the purposes of improving monitoring efficiency and safety effect can be achieved.

The invention discloses an intelligent network remote terminal unit (RTU) system of an electrified railway. The intelligent network RTU system is characterized by comprising an intelligent RTU, wherein the intelligent RTU comprises a master control communication plugin, a telecommand plugin, a remote control plugin and a telemetering plugin, the master control communication plugin is internally provided with a man-machine interface, an equipment management interface and a communication management interface, the master control communication plugin is communicated with all dispatching master stations through dual Ethernets, and the master control communication plugin is communicated with the telecommand plugin, the remote control plugin and the telemetering plugin through dual CAN (Controller Area Network)-BUS. The intelligent network RTU system is more beneficial to management and monitoring of remote measurement and control, and has the advantages of higher intelligent level, high performance, high stability and high operability.

The invention provides an acceptance method and a system for transformer substation monitoring information. A telecontrol device forwarding table is configured by a power station according to a presetregulation information corresponding table; a whole station system configuration file SCD is imported by a a simulation host of an intelligent point-to-point device to obtain a model file for the intelligent electronic devices in the whole station through the SCD, then the intelligent electronic devices in the whole station are simulated by the model file, and manufacturing message specificationMMS messages for the telecommands of the intelligent electronic devices in the whole station are sent to the telecontrol device; the telecontrol device is triggered by the intelligent point-to-point device so that the telecontrol device converts the MMS messages into IEC104 signals to a main station in batch according to the telecontrol device forwarding table; a history record file is generated by the main station according to the received IEC104 signals; the acceptance result of the telecommand signals is obtained by the main station or power station according to the history record file andthe preset regulation information corresponding table. The method of the invention improves the acceptance efficiency of transformer substation monitoring information.

The invention discloses a handling method of a telecommand telemetry uploading a new housekeeping soft to a satellite through measurement and control link, and the new housekeeping software replacing the original housekeeping software (TTUNHSSMCLNHSROHS) satellite housekeeping software. The handling method comprises the steps: S2, receiving TTUNHSSMCLNHSROHS software uploading from a ground station, and storing the TTUNHSSMCLNHSROHS software in an external static RAM (SRAM) of an on-board computer; S5, writing the TTUNHSSMCLNHSROHS software from the external SRAM to FLASH and replacing the original housekeeping software. By the adoption of the TTUNHSSMCLNHSROHS method of satellite housekeeping software, when an on-board computer (OBC) is restarted after outage, the TTUNHSSMCLNHSROHS software can be guaranteed not to be lost, the fact that the original housekeeping software in the FLASH can be replaced in a whole is achieved, and the whole TTUNHSSMCLNHSROHS function of the housekeeping software is achieved.

The invention relates to a high-reliability in-orbit self-correction system and method for an on-board computer on the basis of a 1553B bus. The method comprises the following steps of: S1: the EEPROM (Electrically Erasable Programmable Read - Only Memory) of each on-board computer adopts a triple piece redundancy structure, i.e. the EEPROM comprises three code backup areas, and the same on-board software target code independently stored in each code backup area is subjected to the two-out-of-three cycle check of each page by aiming at a first on-board computer; S2: after the cycle check is finished, the on-board computer carries out independent diagnosis according to a checking result; and S3: the on-board computer transmits an independent diagnosis result to a backup second on-board computer through the 1553B bus, and carries out processing according to a response reply. By use of the method, the self-recovery operation of a satellite is realized through the cycle check, automatic diagnosis and automatic repairing on a premise that resetting is not carried out and a satellite task is not affected by aiming at each type of single event upset generated by the EEPROM of the on-board computer, and the method does not depend on ground telemetry and telecommand and has the advantages of being high in fault-tolerant capability, flexible in design, high in adaptability, good in instantaneity, high in safety and high in reliability.

Provided are an apparatus and a method for verifying a reception and execution status of telecommand in a satellite control system. The inventive apparatus for informing a satellite control system of a reception and execution status of telecommand in a satellite comprises a telecommand receiver for receiving a telecommand signal transmitted from a satellite control system, a link control unit for extracting a command transfer frame from the telecommand signal received in the telecommand receiver, judging whether or not the extracted command transfer frame is valid, and providing corresponding link verification telemetry information to a telemetry transmitter, a telemetry information database for storing a set of telecommand execution verification telemetry mnemonics or measured values, a telecommand/telemetry unit, when the telecommand is executed, for acquiring an execution verification telemetry mnemonic responding to the telecommand from the telemetry information database, and the telemetry transmitter for generating a telemetry transfer frame having the link verification telemetry information provided by the link control unit and the telecommand execution verification telemetry mnemonic acquired by the telecommand/telemetry unit as data field, and sending the generated telemetry transfer frame to the satellite control system.

The invention discloses a computer of integrated satellite-borne SAR loads. The computer comprises a main control module, a telemetry and telecommand module, an interface expanding module, a power module and a backboard. The main control module is used for data processing, timed controlling and wave beam controlling; the telemetry and telecommand module is used for receiving a satellite platform instruction, analyzing the instruction to all single units of the load system to instruct production and OC gate control, and collecting the temperature, voltage analog quantity and the digital quantity telecommand signal of the load system; the interface expanding module has the functions of communication management and interface expanding; the backboard is used for power supply and signal connection of the main control module, the interface expanding module, the power module and the telemetry and telecommand module. Through integrated design of functions of time sequence control, wave beam control, and interface control when the SAR loads work and the telemetry and telecommand of all single units of the load system, the integration level and the reliability of the SAR system are improved,the weight, size and the power dissipation are lowered, data transmission among all machines of the SAR load system is reduced, and the reliability of the SAR load system is improved.

The invention relates to the technical field of intelligent power grids, in particular to a remote vision linkage method for an electric power master station and a substation based on a computer integrated manufacturing (CIM) data model. The remote vision linkage method includes: arranging a preset point position of a camera, building a data base structure based on the CIM data model, conducting system subarea classification configuration, starting remote vision linkage data updating service, building transmission control protocol (TCP)/internet protocol (IP) communication connection, inquiring whether statement inspection has data updating, arranging a corresponding camera and a linkage preset point position according to actual linkage requirements, starting remote vision linkage service and building TCP/IP communication connection, receiving device remote control selecting telecommand sent by a comprehensive automatic system, finishing camera linkage locating, analyzing remote vision linkage service, forwarding a linkage request, and popping out device linkage alarming information and a video linkage image. By means of the method, a traditional operation method that a video monitoring system is independent from the comprehensive automatic system is thoroughly changed, and users can use a video image resource to assist safety production operation of the substation from the electric scheduling special perspective.

The invention relates to a method for DDS communication in the field of power distribution networks. The method comprises the steps of first generating an issuing party and a subscription party, enabling the subscription party to send needed data types to a data theme generation module, enabling the data theme generation module to establish a data theme for the issuing party according to the data types needed by the subscription party, enabling data theme types to comprise telemetering, telecommand, a telemetering sequence and a telecommand sequence, and when the subscription party needs a single datum in one time, establishing a telemetering or telecommand data theme for the issuing party; and when the subscription party needs a plurality of data in one time, establishing a telemetering sequence or telecommand sequence data theme for the issuing party. Not only does a subscription mode improve transmission efficiency, but also the subscription party can subscribe all telemetering of some line in one time and can also specific telemetering of all lines in one time so as to compare maximum values, flexibility is improved for a transmission mode, and the problem that in the prior art, only one datum can be transmitted in one time, so that the transmission is slow and the efficiency is low is solved.

Provided is a satellite control system based on integrated satellite operation data and a method thereof. The satellite control system includes: a satellite operation data schema editing means for creating a document type definition file and defining a schema; a mission planning means for creating a mission timeline and recording the mission timeline; a command planning means for converting a task into telecommands and recording the telecommand; a command preparing means for creating a telecommand procedure and recording the telecommand procedure; a command transmitting means for creating a telecommand code, transmitting the telecommand code to a satellite and recording the telecommand code; a command verifying means for receiving telemetry data and recording a telecommand verification result; and a performance result reporting means for creating a mission performance result and recording the mission performance result.

The invention discloses real-time online ice melting equipment for a power transmission wire and a control method thereof. The equipment comprises a self-heating wire arranged between a first power transmission wire and a second power transmission wire, wherein the self-heating wire comprises an inner conductor, an insulating layer and an outer conductor which are coaxially arranged in sequence from inside to outside; one end of the inner conductor is connected with the first power transmission wire and a power controller. The other end of the inner conductor is connected with the second powertransmission wire and one end of the outer conductor. According to the invention, the power controller is used for carrying out anti-icing operation and ice melting operation on a self-made hot wire;a server carries out remote commands on the power controller, ice melting and ice prevention are carried out under the control of the server, online ice melting and ice prevention can be carried outwhen the high-voltage power transmission line works, the problem that the power transmission line is icy in a cold environment is avoided, and the safety of the high-voltage power transmission line isguaranteed.

The invention relates to a method for achieving transformer substation topology network telecommand data identification, and belongs to the technical field of electric power. A logical relationship of telecommand data are telemetered through different network nodes in an integrated monitoring system, and a three-grade logical judgment method is used for identifying the telecommand state in a topology network. The method has the advantages that poor telemetering telecommands can be eliminated, it is guaranteed that the telecommand data in topology analysis are accurate, and interference of bad data to various service applications of a transformer substation is reduced. High redundant multisource metering information in the transformer substation can be effectively used, the identification rate of the bad data is improved, and the anti-interference capability of the system is strengthened.

A calibration system of architecture, apparatus, algorithms and method for optimizing leakage performance of a multi-port amplifier (MPA) for satellite communications. The calibration system comprises simple onboard apparatus and generally on-ground algorithms implementation connected via telecommand and telemetry links. The isolation performance of the MPA is monitored by using a commandable frequency generator and a flexible narrowband receiver. The high performance is achieved by direct and efficient optimization of the aggregate leakage of the MPA. The calibration system may be applied but not limited to Ku and Ka-band high throughput satellite systems.

The invention provides an accuracy judgment and warning system for front-end collected data in automation of electric network management. The accuracy judgment and warning system comprises an existing automatic power network dispatching system master station, a front-end server group, an analysis processing server and a human-machine interface, and the front-end server group is formed by four front-end servers which are connected with the automatic power network dispatching system master station through first to fourth channels respectively. A data acquisition module and a data analysis processing module are arranged in each front-end server, each data acquisition module is used for acquiring and storing telecommand and telemetering data, and each data analysis processing module is used for analyzing the data and associates with substation equipment. A data classifying module and a data analysis processing module are arranged in the analysis processing server, and the data analysis processing module is used for judgment of the telecommand and telemetering data transmitted by the data classifying module. The human-machine interface is used for data information display, abnormality warning and information storage and statistics. Automatic judgment and abnormality warning of the data acquired by an automatic power network dispatching system can be realized to improve safety in operation of a power network.