2387results about How to "Reduce operational risk" patented technology

This system includes a car series consisting of at least two cars. The inter-car comm. sub-system (ICS) of the leading car sends the running and situation info to the car behind. ICS of the latter sends info to the driving decision-making system (DD) of this car. When DD receives info, the situation supervision sub-system (SS) of this car offers the Driving Situation of this Car (DSC) to DD, too. DD combines and analyzes these two info then sends instruction to the situation self-control sub-system (SC). SC combines the instruction and the info from SS, then finally real time controls DSC via the car control port sub-system. This invention reduces the driver's tired degree, the accident occurring rate and driving cost.

A device for the treatment of obesity includes at least one first and one second band each with closure means for closing the particular band to form a ring. The first band is connected or is connectable with an enveloping part and is placeable about the esophagus, the stomach or a transition region between the esophagus and the stomach. The second band, also connected or connectable with the enveloping part, is placeable about the stomach distally to the first band and spaced apart from it, and the region of the stomach located between the first and the second band is envelopable by the enveloping part.

The invention relates to a transformer substation field operation management and control system and method based on three-dimensional dynamic modeling. The method comprises the following steps: performing three-dimensional dynamic modeling on a transformer substation; accurate positioning; based on the three-dimensional digital model, carrying out intelligent management and control on an operation site through intelligent identification and early warning; based on a three-dimensional digital model, performing live-action rehearsal and equipment simulation training on typical production operation and safety accidents through a virtual reality system. According to the invention, visual data support is provided for field operation work and personnel training work; real-time positioning and track checking of personnel and equipment are realized, and visual technical support is provided for remote intelligent management and control; an intelligent management and control means is provided for field operation safety, dynamic simulation of an operation task plan, typical operation, dynamic rehearsal of safety accidents and disassembly and reassembly analogue simulation of typical equipment are achieved, a visual simulation scheme is provided for field operation, operation risks are reduced, immersive training experience is provided, and training efficiency is improved.

The invention provides storage mildew-proof and moth-proof packaging hemp cloth and a preparation method thereof. The hemp cloth comprises green harmless storage protective agent and is prepared by taking common packaging hemp cloth as a material and adding 0.01-10wt% of storage protective agent. The preparation method comprises the following steps of: dissolving the storage protective agent in a solvent to prepare a solution, then impregnating the hemp cloth in the protective agent solution, removing the solution after the hemp cloth sufficiently absorbs the solution, and drying; or dissolving the storage protective agent in the solvent, then uniformly spraying the protective agent solution on the hemp cloth and drying the hemp cloth after the hemp cloth sufficiently absorbs the protective agent solution to prepare the storage mildew-proof and moth-proof packaging hemp cloth. The storage hemp cloth is used for packaging tobaccos or crops, can realize the whole process dynamic and real-time protection of the tobaccos, the crops and the like in purchase, transport and storage processes, protect products from mildew and moths, effectively prevent the mildew and the moths from spreading between bags and prevent the tobaccos, the crops and the like which are soaked by rain water from mildewing. Besides, the invention has an important function for reducing environment pollution and hidden safety danger which are caused by common technologies.

The invention relates to a large grid real-time scheduling method for accepting access of wind power, which belongs to the technical field of power system operation and control. The method comprises: according to the characteristics of wind power and load fluctuation and the control characteristics of generator sets, classifying the generator sets in the whole grid; acquiring the current plan, real-time output, connecting line plan, numerical weather prediction and other related information of each generator set; performing ultrashort period load prediction and wind power output prediction towork out the output regulation amount at next moment of real-time scheduling generator sets and construct an active real-time scheduling model with the smallest wind loss; working out the output regulation amount of the real-time scheduling generator sets including the wind power generator sets by using a simplex method; and transmitting the next output regulation amount of thermal power generator sets directly, and giving the output maximum value at next moment of the wind power generator sets. In the invention, the combined optimized scheduling of the wind power generator sets and traditional generator sets is performed to eliminate wind power generation prediction deviation and load prediction deviation in advance, so the wind power accepting capability of a power grid is improved to the maximum extent while the operation economy of the power grid is guaranteed.

A voice controlled surgical system including a wireless command microphone receiving audio input, a voice control module for generating commands from the audio input received by said wireless command microphone, a detection module for generating signals indicative of a proximity of said wireless command microphone, a switch module for disabling the commands in response to one or more of the signals, and an alarm module activated in response to the one or more of the signals.

The invention relates to a comprehensive electroplating wastewater treatment method. The electroplating wastewater is divided into six brand-new classes, a chemical and biochemical combined process is adopted, a separate system drainage pipe network is adopted, the electroplating wastewater is divided into ink wastewater, complex wastewater, pretreatment wastewater, cyanogen-containing wastewater, chromium-containing wastewater and common electroplating wastewater, the six classes of wastewater respectively flows into respective underground adjusting tank through the pipe network, and is treated by respective process, and the effluent is discharged after reaching a standard. Because of the scientific water separating and stepwise pretreatment of a front-end chemical treatment part, different pollutants are respectively removed in different process sections according to characteristics, crossed enrichment and mutual reaction of the different pollutants are reduced to the greatest extent, and the pressure of microorganisms in the biochemical process is reduced. Treatment facilities for the six classes of wastewater are mutually connected and relatively dependent, and when inlet water quality fluctuates, a corresponding section is only required to be adjusted, the whole process is not influenced, the management is scientific and orderly, and operational risks are reduced.

This invention relates to reclosing method for power transmission line. For joint parallel double circuit type: each circuit being equiped with individual protector, main protection being phase-splitting current differential protection or phase-command longitudinal protection; for various type single circuit fault or overline fault withni a zone, tripping fault being detected, determinnig no serious permanent fault, sequentially reclosing the tripping phases. For double-circuit fault, there must be two different type circuit being of no fault for reclosing, if not, two circuits must be tripped-off. This invention method increases the reclosing rate, together with minimizing the shock to the system after reclosing permanent fault.

The invention discloses a mining analyzing and fault diagnosis system of rail transit monitoring data, and relates to the technical field of railway signals. The system comprises a signal monitoring system data processing unit, a data analyzing unit, a knowledge base unit and a fault diagnosis unit, wherein the signal monitoring system data processing unit is used for acquiring history railway signal monitoring data and real-time railway signal monitoring data from an on-site centralized signaling monitoring (CSM) device in each electric service workshop or work area. The data analyzing unit is used for analyzing the history railway signal monitoring data acquired by the signal monitoring system data processing unit, and generating fault diagnosis rules. The knowledge base unit is used for storing judging standards, and storing the fault diagnosis rules of the data analyzing unit, wherein the judging standards are formulated according to the work principle of each railway signal device and national and industry standards and specifications in the railway signal field and are used for fault diagnosis. The fault diagnosis unit is used for generating fault diagnosis results according to the fault diagnosis rules and the judging standards as for the real-time railway signal monitoring data acquired by the signal monitoring system data processing unit.

The invention discloses a digital underground layering water injection testing and adjusting process pipe column and an operation method thereof. According to the purpose, the instantaneous flow rate and the accumulative total injection rate of a single reservoir stratum can be monitored and recorded in real time underground, pressure of the reservoir stratum is monitored in real time, underground well shut-in layering pressure drop is tested, and bi-directional transmission of data and orders between a down-hole and the ground is carried out in a wireless mode. The process pipe column is formed by connecting a multistage digital water distributor and an Y344 water injection packer through an oil pipe, and eliminates steps of testing and allocating steel wires of the flow rate compared with an existing water distributor and a packer used for layering water injection. Meanwhile, the instantaneous flow rate and the accumulative total injection rate of the single reservoir stratum can be monitored and recorded in real time underground, the pressure of the reservoir stratum is monitored in real time, and the underground well shut-in layering pressure drop is tested. The pipe column can greatly reduce workloads of matching tests and pressure-drop tests of an oil field layering water injection well, provides the true and reliable accumulative total injection rate of the single stratum, and provides reliable evidence for policy adjustment of the oil field development technology.

The invention discloses a real-time adjustable and controllable hanging type underground oil and water separating system, which comprises an underground sleeve pipe, a water injection oil pipe, an oil extracting oil pipe and a flow rate control valve, wherein the flow rate control valve is arranged at the wellhead part, the aboveground ground is provided with a visual control device, a hanging type three-way joint connected with the oil extracting oil pipe, an oil and water separator and the water injection oil pipe is arranged in the sleeve, the oil and water separator is connected with an electric submersible pump unit, a water injection pressure regulating device is arranged on the water injection oil pipe, a flow rate and pressure monitoring instrument is arranged in the electric submersible pump unit, a flow rate and pressure monitoring instrument and a regulating valve are arranged in the flow rate control valve, monitoring instrument cables and signal transmission cables are respectively connected among the electric submersible pump unit, the water injection pressure regulating device, the flow rate control valve and the visual control device, the visual control device converts received real-time flow rate and pressure signals into visual data to be output, and the work of the whole system is regulated and controlled. The hanging type underground oil and water separating system has the advantages that the stability is high, the treatment capability is high, and the hanging type underground oil and water separating system can be widely applied to an oilfield same-well production injection process.

The invention provides an enterprise informatization management system which comprises an office intelligent management module, an intelligent project supervision module, an intelligent product management module, a product resource function management module and a training management module. The system not only can realize automatic unification and query of attendance, leave, resumption from leave and payment of employees, but also can realize unified management and query of periodical management and maintenance of the products, specifically comprising purchase of raw materials, product research and development, product production, product sale and later maintenance and repair of the products. According to the enterprise informatization management system, complete-course tracking and service of each product can be realized, not only management of employee information is guaranteed, but also effective management of the products is realized, thereby helping to manage the management mode of an enterprise in a standard manner, improving management efficiency, reducing management cost and allowing the enterprise informatization management system to be more perfect.

The invention discloses a model predication control based cooling heating and power generation type micro-grid operation method. The method comprises the steps of building a predication model to predicate the wind power, photovoltaic power and cooling heating power generation load power data within a control time domain in the future; solving a rolling optimizing model at every moment according to the latest predication result and the real-time operation state of each device; calculating the force output of each device at the following time quantum; re-calculating the rolling optimizing model at the next time according to the latest predication result, monitoring the actual wind power value, photovoltaic value, cooling load value, heating load value and power generation load value on real time; updating the historic data; solving and feeding back to correct the model at every 5 minutes to obtain the adjustment of each device; distributing to each device for adjusting until reaching the next rolling optimizing time. With the adoption of the method, the influence of inaccurate predication on the optimal operation of the system can be removed well, thus the system operation risk is reduced, and the system operation stability is improved; meanwhile, the economy of the operation of a cooling heating and power generation type micro-grid can be increased.

Provided are a method and a device for tunnel advance geology forecast with tunnel face blasting as a focus. The method comprises the steps of (1) drilling holes on two lateral walls at the inlet position in a tunnel; (2) filling a coupling agent into the drilled holes, and attaching weave detectors to the walls of the drilled holes; (3) winding a trigger circuit copper wire on cartridged explosive, and placing the cartridged explosive into a blasted hole of the tunnel face; (4), enabling two three-component weave detectors buried in a tunnel hole to receive reflective earthquake wave signals; (5) sending the signals to an amplifier after the signals are selected by a multi-way switch; (6) enabling the amplifier to amplify the signals and then transmit the signals to an analog/digital (A/D) converter through wireless transmission; (7) enabling a wireless communication module of a control chamber to receive a wireless signal and then transmit the wireless signal to a host, and recording the signal; and (8) achieving geology forecast through an processing program installed in the host. The device comprises signal acquisition, wireless communication and control and a data analyzing system. The method is simple, easy and low in cost, can be used for advance geology forecast of tunnels, holes and roadway underground spaces, and achieves automation and normalization of geology forecast.

The invention discloses an intelligent monitoring and early warning method for an elevator brake. The method comprises the following steps of 1, a hardware structure of an elevator brake intelligent monitoring and early warning system is built in an elevator machine room; 2, small sample monitoring data are collected, feature vectors of signals are decomposed, reconstructed and extracted through awavelet packet, and a health mode library is built; 3, the running state of the elevator brake is monitored in real time, and early warning is carried out on faults possibly occurring through an SVMclustering analysis algorithm; and 4, according to a fault prediction result, maintenance personnel of an elevator are guided to adjust and optimize the maintenance plan, predictive maintenance is carried out, the faults of the brake are eliminated in a sprouting state, and accidents are avoided. According to the intelligent monitoring and early warning method, key parameters like an elevator brake gap, the abrasion amount of a brake shoe, a brake distance, a brake coil voltage, a traction machine working current, brake temperature, noise are monitored in real time through a non-contact type measuring method, data mining and analysis are carried out on the large amount of monitoring data, so that fault hidden danger of the elevator brake is predicted in time, and safe operation of the elevator is guaranteed.

The invention relates to a large grid active power real time control method in a restricted wind power state, and belongs to the technical field of operation and control of electric systems. The method comprises the following steps: firstly obtaining the current restriction quantity of a wind power field by using a benchmark dynamo method or a theoretic estimation method according to wind speed data, acquired in real time, of the wind power field and relative parameters of a generator; and then establishing a model in active real time control by the system according to the minimum wind-abandoning principle, optimizing and solving the model by using a suggested solving algorithm to obtain the current maximum absorptive wind power quantity of the system and an optimal adjusting strategy of other water-fire generator systems, and interpolating the obtained adjusting strategy by using a difference value method so as to be compatible with the existing ACE (access control entry) order format. The method provided by the invention has the following advantages: a real-time control loop using the minimum wind-abandoning loss as a target is added between a real-time plan and the ACG (application control gateway) control, so as to implement the joint optimization scheduling of the wind power and the traditional unit through the wind power field wind-abandoning quantity obtained by real-time computation, so that the wind-abandoning electric quantity caused by the prediction error of wind power generation is maximally reduced, and to the accepting capability of the grid to the wind power is furthest improved while the economical efficiency of the grid operation is ensured.