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183results about How to "Reduce the number of failures" patented technology

Intelligent digital audiovisual playback system

Payment-based audiovisual playback system characterized by comprising a microprocessor device associated with a payment device primarily including means for storing, inter alia, in digital format the visual and sound information to be used. The system is associated through interfaces with display means and sound playback means for providing a multimedia environment. The system is controlled by a multitask operating system including a tool and service library integrated into the storage means. The system, which is also associated through an interface with a telecommunications modem, is optionally connected to an audiovisual data distribution network by a telecommunications modem and telecommunications links, said telecommunications function also being controlled by said multitask operating system.
Owner:TOUCHTUNES MUSIC CORP

Noncooperative-game-based delay tolerant network (DTN) opportunistic routing cooperative encouragement method

The invention discloses a noncooperative-game-based DTN opportunistic routing cooperative encouragement method. In the method, intermediate nodes are encouraged by means of source node payment to cooperate to forward data in DTN, an auction model of the contracting process at each hop of each node is built, and with data time to live (TTL), node energy level and node memory conditions taken into consideration when a candidate node offer a price, Byes Nash equilibrium solution is found so as to maximize the payoff of each node under the equilibrium solution condition. The mechanism can maximize the transmission rate of data, reduce data transmission delay and improve network stability to a certain extent.
Owner:BEIHANG UNIV

Split ring retainer for turbine outer air seal

ActiveUS20060216143A1Reduce number of premature failureReduce amount of timePump componentsBlade accessoriesTurbine rotorSplit ring
A retainer for securing the outer air seal assembly of a turbine rotor stage in a locked position. The outer air seal is suspended from the turbine casing over the rotor stage and is locked to the casing by annular segmented locking keys. A series of circumferentially spaced seats are located upon the front face of the locking key segments with the outer surfaces of the seats describing a circle approximating a first diameter. A split ring retainer is slidably carried in a radially disposed groove and is arranged to secure the key segments in a locked position. A series of lugs extend inwardly from the inside wall of the ring. The lugs are circumferentially spaced about the ring with the inner surface of the lugs approximating a circle having a second diameter that is less that of the first diameter approximated by the seats. The lugs are spaced so that each lug can be seated upon a seat to flex the ring outwardly in a radial direction and thus secure the key segment in a locking position.
Owner:RAYTHEON TECH CORP

Method of controlling active material actuation utilizing an operational envelope

A method of controlling and / or predicting the remaining useful life of an active material actuator, such as a shape memory alloy wire, includes obtaining historical actuation data of an inherent system variable, such as electrical resistance, over a secondary variable, such as time, determining a normal operating envelope having upper and lower bounds based on the data, determining a current profile for a given actuation cycle, and comparing the shape of the current profile to the envelope to determine an out-of-bounds event.
Owner:GM GLOBAL TECH OPERATIONS LLC

Fault analysis method, fault analysis device and server

The embodiment of the invention provides a fault analysis method, a fault analysis device and a server. The fault analysis method provided by the invention may comprise the following steps of: determining a network fault with the highest fault probability in a network; and performing fault analysis on the network fault with the highest fault probability. According to the embodiment of the invention, efficiency of analysis on network survivability may be improved.
Owner:赵修文

Wireless vibration monitoring system applied to auxiliary machine of thermal power plant and provided with self power generation device

The invention discloses a wireless vibration monitoring system applied to auxiliary equipment of a thermal power plant and provided with a self power generation device. The system is composed of a data acquisition module, a self power generation module, a data processing module, a data transmission module and an APP intelligent device client side. A vibration signal of the auxiliary machine is preprocessed through a DSP high-speed processor and is sent to an intelligent device terminal through a Bluetooth interface or a Wi-Fi interface, in this way, a user can receive vibration information and fault early warning information conveniently and rapidly, and offline diagnosis of equipment faults can be achieved. According to the system, the bistable state piezoelectric vibration power generation technique is adopted, equipment vibration energy is converted into electric energy, self power supply of the wireless monitoring system is achieved, the application environments of the wireless monitoring system are widened, monitoring of vibration of the auxiliary equipment of the thermal power plant is effectively achieved in the severe environment, safe and reliable operation of the auxiliary equipment is guaranteed, and productive benefits of the power plant are greatly increased.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Rotate speed tracking and restarting method for high voltage frequency converter

The invention discloses a rotate speed tracking and restarting method for a high voltage frequency converter, and provides a rotate speed tracking and restarting method integrated with remanent magnetism voltage detection and torque current measurement, taking the length of the power-off duration as the criteria for detecting different electrical quantities. The rotate speed tracking and restarting method for a high voltage frequency converter includes the steps: when the power-off duration is short, utilizing a tracking method for detecting the remanent magnetism voltage of a stator; when the power-off duration is long, utilizing a tracking method based on the torque current; applying the test voltage at the stator side, taking a stator voltage vector to perform orientation, and measuring the torque component of the stator current until the torque component is close to zero while the synchronous rotate speed corresponding to the test voltage frequency is the rotate speed of a rotor; and finally, being the restarting phase, ordering the voltage frequency ratio to rise step by step and then ordering the upgraded voltage frequency ratio to recover to a normal voltage frequency ratio and to boost to a target value. The rotate speed tracking and restarting method for a high voltage frequency converter has no requirement for adding extra hardware devices, and can track any rotate speeds of an auxiliary engine, and is high in reliability and is simple in setting.
Owner:JIANGSU ELECTRIC POWER CO +3

Mobile communication system with traffic collection and control for radio base stations

A mobile communication system includes using a mobile terminal, base stations and a base station control device. Each, each of the base stations cover respective areas for mobile communication service and is capable of relaying a conversation, made by the mobile terminal, by radio communication. The base station control device observes (or monitors) traffic (i.e., number of calls in progress) with respect to each of the base stations. In response to a conversation start event or a conversation end event that takes place in the mobile terminal which is located in an area of a base station whose traffic is large, the base station control device searches a surrounding base station whose traffic is relatively small. The base station control device then controls an area of the searched base station to enable radio communication with respect to the mobile terminal. For example, output of the searched base station is increased so that an area of the searched base station is broadened to cover a location of the mobile terminal. Thus, it is possible to avoid occurrence of call failure due to shortage of communication lines.
Owner:NEC CORP

Brake Device

A brake device for an elevator system includes a brake disk adapted to interact with a brake rotor concentrically disposed on an extension of a traction sheave. A traction sheave adapted to be concentrically disposed on a shaft of an elevator system driving apparatus includes a main body including an integrally formed extension adapted to interact with a brake device.
Owner:THYSSENKRUPP ELEVATOR INNOVATION & OPERATIONS GMBH

Electric power high-voltage cable connector non-contact infrared temperature measurement system and temperature measurement method

ActiveCN103267578AFully grasp the working statusAvoid or reduce failureRadiation pyrometryEmergency treatmentComputer module
The invention discloses an electric power high-voltage cable connector non-contact infrared temperature measurement system and an electric power high-voltage cable connector non-contact infrared temperature measurement method. The electric power high-voltage cable connector non-contact infrared temperature measurement system comprises a non-contact infrared temperature measurement device and a non-contact infrared temperature measurement probe. The non-contact infrared temperature measurement device comprises an embedded processing unit, a carrier communication module, a data storage unit, a super-capacitor power pack and an SDI communication module. The embedded processing unit is respectively connected with the carrier communication module, the data storage unit, the super-capacitor power pack and the SDI communication module. The non-contact infrared temperature measurement device is connected with the non-contact infrared temperature measurement probe through the SDI communication module, and therefore acquisition of temperature data is achieved. Through measurement, monitoring and statistic analysis of non-contact temperature of a branch box or a switch cabinet or a high-voltage contact, operating staff can comprehensively master operating conditions of the branch box or the switch cabinet or the high-voltage contact, the electric power high-voltage cable connector non-contact infrared temperature measurement system gives out alerting signals to warn relevant people to conduct emergency treatment when temperature rises sharply and reaches ultimate temperature, and therefore occurrence of failures is avoided or reduced.
Owner:康威通信技术股份有限公司

Method and equipment for evaluating technological property of bolt installation

The invention relates to a method and equipment for evaluating the technological property of bolt installation, and the method comprises the steps: determining the fastening sequence of bolts; testing the total pulling force of bolts in an operation process under the condition of different loads; obtaining a real-time stress amplitude value; making a conclusion that an end face of a connected part is cracked when the real-time stress amplitude value is greater than a standard stress amplitude value; and determining the fastening sequence of new bolts till the fastening sequence of the current bolt is judged to be the optimal bolt fastening sequence. The equipment comprises a signal input end module, a signal collection and processing module, and a man-machine interaction module, wherein the signal input end module comprises a strain signal input end, a standard analog input end, and a power circuit. The signal collection and processing module comprises a processing chip. The man-machine interaction module comprises a processor, a communication interface, an operation module, and a display module. The method and equipment can test the bolts, propose a new installation technology, and facilitate the maintenance of the bolts.
Owner:BEIJING TIANYUAN SCI & TECH CREATION WINDPOWER TECH

Power cable temperature measuring device and temperature measuring method

The invention discloses a power cable temperature measuring device. The power cable temperature measuring device comprises an embedded processing unit, a temperature measuring sensor unit, a data receiving and processing unit, a communication module, a display module, a storage unit, an alarm device and a supercapacitor power supply group; data measured by the temperature measuring sensor unit arefed into the data receiving and processing unit through the communication module to process; the data receiving and processing unit feeds the processed data into the embedded type processing unit; when monitoring that the temperature is abnormal, the embedded type processing unit sends out alarm information to the alarm device and stores failure information into the storage unit; and the displaymodule is a projection type capacitive touch screen, can display a monitored cable joint temperature value and a processing result, and can set the temperature monitoring condition through a screen menu and inquire historic record. The invention also provides a temperature measuring method of the power cable temperature measuring device. The power cable temperature measuring device and the temperature measuring method have the beneficial effects of high reliability, full functions and capabilities of effectively reducing failure occurrence times and reducing failure loss.
Owner:STATE GRID CORP OF CHINA +1
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