49 results about "UNSTABLE ENVIRONMENT" patented technology

A computer implemented method includes introducing unpredictable temporal disruptions to the operating states of an authorized process and an unauthorized process. The authorized process is migrated to a virtual machine to avoid the unpredictable temporal disruptions while the unauthorized process is subject to the unpredictable temporal disruptions and thereby experiences an unstable environment that induces operating faults.

The present disclosure is related to a P2P file transmission system and method, the system according to the present disclosure may include a P2P node managing system managing users connected to the system, and managing P2P file transmissions between the users; and a relay server relaying the file transmitted to the file receiver from the file sender when the P2P file transmission by the direct connection between the file sender and the file receiver fails. According to an embodiment of the present disclosure, the present disclosure provides more stable file transmissions under an unstable environment for the P2P file transmission such as NAT and the P2P file transmission system may be applied to various network places.

The invention discloses a method and a system for positioning a mobile terminal in a subway. The method includes the steps: acquiring a base station position identifier of the mobile terminal passing through a base station and time corresponding to passing in real time; and when monitoring change of the base station position identifier, determining that signals are switched by the base station, determining a reference position, reference time and the time of the mobile terminal, determining an offset distance based on time difference between the time of the mobile terminal and the reference time and average moving speed, and finally, positioning the current mobile terminal according to the offset distance. By the aid of the method and the system, accurate position information is acquired in an environment with unstable signals in a targeted manner based on the running track and a path of a train fixed into the subway and real-time dynamic monitoring of change of the base station position identifier, and the mobile terminal is positioned in a highly real-time, high-stability and low-cost manner.

A support structure for elevating a building surface above a fixed surface and having stability bracing to provide increased stability to the elevated building surface assembly. The support structure includes a plurality of support pedestals that are disposed in spaced-apart relation on a fixed surface. Stabilizing braces are attached to the central section of adjacent support pedestals to interconnect the support pedestals. The stabilizing braces may attach to the support pedestals using anchoring members that are anchored to the support pedestals. Interconnecting the support pedestals in such a manner creates a stable elevated building surface assembly that can be utilized in unstable environments, such as seismically active geographic areas. The support pedestals can be adjustable-height support pedestals.

The invention discloses a prediction method for link stability of an Ad Hoc network, which includes steps: firstly, assessing direct stability of the link; secondly, assessing indirect stability of the link; thirdly, assessing comprehensive stability of the link; fourthly, taking stability as a foundation for a multicast routing protocol so as to solve the problem that the multicast routing protocol based on the existing link stability serving as a routing standard is unable to adapt to an unstable environment with high mobility, strong interference and the like. The prediction method for link stability of the Ad Hoc network is simple in calculation, low in working capacity during a process of accessing the link stability, stable in holistic performance and strong in adaptability for the network and low in energy consumption and has low requirements for hardware.

The invention belongs to the technical field of communication and electronics, and discloses a data transmission method and a data transmission system. The data transmission method comprises the steps of: sequentially numbering to-be-transmitted small files; assembling the numbered to-be-transmitted small files according to a preset protocol format; sending the files, which are generated after assembly, via a data transmission channel; and according to received confirmation information, obtaining numbers of unreceived small files, and sending the unreceived small files again via the data transmission channel. According to the data transmission method and the data transmission device disclosed by the invention, through numbering the to-be-transmitted small files, sending to a receiver device after assembling according to the preset protocol format, and splitting the received files according to the preset protocol format into the small files by the receiver device, the problem of frequently establishing connections in file transmission process in the prior art is solved; and meanwhile, the small files are transmitted in a dynamic splicing manner after being numbered sequentially, so the problems of a single channel in a network unstable environment are solved.

The invention belongs to the technical field of blind source separation and specifically relates to an improved natural gradient variable step-size blind source separation algorithm. The algorithm mainly comprises the following steps of randomly generating a hybrid matrix, carrying out linear mixing on source signals, and obtaining three hybrid signals; initializing a separation matrix, an autocorrelation matrix and a learning step, adding an orthogonal constraint, and controlling a variable step size by instantaneous errors and carrying out iteration; calculating an estimation signal; and drawing a recovered source signal waveform according to the estimation signal. The invention provides the natural gradient blind source separation algorithm based on the orthogonal constraint, the algorithm constrains the strength of recovered signals, and the stability of a separation process under an unstable environment is ensured; in addition, the convergence is accelerated, the separation precision is improved, the signal amplitude under the unstable environment constantly changes, the change frequency is relatively high, and a conventional separation method can not perform the separation, so that the related technology of the invention is advanced and prospective.

The invention relates to a WIFI indoor positioning method under a linear unstable environment. The method is divided into an offline data acquiring state and an online real-time positioning stage. The offline data acquiring stage comprises the following steps: adopting an access point clustering mechanism based on wireless access point (AP-Access Point) correlation coefficient, clustering the wireless AP, wherein influence caused by the change of the wireless AP change is reduced, and the positioning precision is improved; meanwhile, a short-time path memory WKNN (weighted K-Nearest Neighbor) algorithm is provided aiming at the linear environment, a positioned result within a minute before is stored in a database as the short-time path memory data, and then the weight is distributed according to time order, the computation complexity is greatly reduced, and the positioning efficiency is improved. The method disclosed by the invention is in full consideration of the problems that a WIFI signal is unstable and the wireless AP is large in change, so that the influence of the adding and the removing of the wireless AP to the positioning is reduced, and the positioning precision and the positioning efficiency are improved.

The invention discloses an energy-saving transmission method oriented to mobile cloud computing and a corresponding middleware system. A cloud end hosting request management module is used for receiving and processing a mirror image hoisting request of a mobile end, a cloud end application mirror image data management module manages data updating and deleting of a mobile application mirror image, a cloud end-mobile end data transmission module achieves energy-saving data transmission between a cloud platform and the mobile end, a mobile end data storage and distribution module stores the data transmitted through the cloud end and distributes the data to different mobile applications, and a mobile end application request analysis module analyzes data requests of the mobile applications, and feeds back corresponding data from the storage module. The energy-saving transmission method oriented to mobile cloud computing and the corresponding middleware system can well lower high transmission energy consumption under a wireless network bandwidth unstable environment, improves the performance of a mobile end battery and improves user experience of a data pre-taking program at the same time.

The invention provides a high-pressure heater state analysis method based on a genetic simulated annealing algorithm. The method comprises the steps that firstly, data of the operation state of the high-pressure heater are acquired, data loss error processing is conducted on data problems caused by equipment heat, and accidental error processing is conducted on data problems caused by unstable environments or unstable instruments and signals; Main variables influencing power generation operation are found by adopting a main element analysis method, so that the calculation data is reduced, theoperation reaction speed is increased, and representative measuring points are convenient to select; and mining the operation state data of the high-pressure heater based on a genetic annealing algorithm, and finally calculating the membership degree of the high-pressure heater and obtaining the optimal operation state of the high-pressure heater. The FCM clustering mining of the high-pressure heater operation state data is carried out based on the genetic simulated annealing algorithm, and the algorithm not only overcomes the defect that the FCM algorithm is caught in a local optimal solution, but also strengthens the global search function, thereby having better convergence and global search capability.

The invention relates to an automatic temperature and humidity control method for an airtight cabinet based on temperature feedback, and belongs to the technical field of shipborne radar environmentalcontrol. The automatic temperature and humidity control method for the airtight cabinet based on the temperature feedback aims to solve the problem of unstable environment temperature in the cabinetwhen the thermal load inside the cabinet changes rapidly. Aiming at the problem, the direct measurement temperature of a heating source is taken as the disturbance, and the temperature of an air supply opening and an air returning opening in the cabinet and the humidity of the air returning opening are taken as the feedback, the advantages of a feedforward compensation control technology and a cascade PID control technology are combined, an integral separation PID control algorithm is adopted, and the self-adaptation control of the temperature and humidity in the airtight cabinet is realized by using a liquid-state cold source. The automatic temperature and humidity control method for the airtight cabinet based on the temperature feedback is high in reliability, high in control speed and good in control effect, and is suitable for a heating load airtight cabinet with the heating value from 1.5kW to 4.5kW.

The invention discloses a dual-polarization-state analyzer for vibration sensing. An incident light is cast to a light splitter via a first optical fiber collimator, and a first beam and a second beam are generated. The first beam is vertically cast to a first polarizer, and the light emitted from the first polarizer goes through a second optical fiber collimator. The second beam is vertically cast to a second polarizer, and the light emitted from the second polarizer goes through a third optical fiber collimator. The range of the angle between light transmission axis of the first polarizer and the light transmission axis of the second polarizer is 5 degrees to 85 degrees. The invention provides the dual-polarization-state analyzer, the cost of needed optical devices is low, the structure is simple, under the condition of increasing little cost, the influences of instable environment factors such as a temperature, a deployment mode and a non-polarization-maintaining fiber quality difference can be overcome, and the vibration sensing sensitivity is high. The invention provides a cost-limited fiber polarization detection vibration sensing system solution, and vibration characteristics can be detected through polarization state changes in an unstable environment.

The invention discloses a piezoelectric driving-based six-leg actuator and a working method thereof, and relates to the fields of ultrasound, MEMS and piezoelectricity. Conventional motion on a planecan be achieved, and the motion capability after overturning also can be maintained. The actuator comprises a lead screw, a first phosphor bronze matrix, a titanium alloy matrix, a second phosphor bronze matrix, metal legs, a phosphor bronze round ring, an annular piezoelectric ceramic sheet, a first piezoelectric ceramic sheet group and a second piezoelectric ceramic sheet group. The working modeof the actuator comprises a normal working mode and an overturning working mode. Due to the structure characteristic of the device, the conventional motion on the plane can be achieved, the functionof maintaining the motion capability after overturning under a force majeure effect of the outside also is achieved, the device can be applied to an unstable environment to a certain extent, and meanwhile, the device has a certain develop prospect in the field of a miniature robot.

The invention discloses a disposable beverage particle bag. The bag comprises a cover which is provided with micro holes and made of a material which meets the edible hygiene requirement, and a ring piece made of a material which meets the edible hygiene requirement and has the density higher than that of water, wherein grooves are formed on the left and right sides of the ring piece except the lower part and communicated with the outside leftwards or rightwards through notches; a closed chamber is defined by the cover and the ring piece, and beverage particles are put into the chamber; or a closed chamber is defined by the cover, beverage particles are put into the chamber, and the ring piece is fixed on the edge of the cover. The disposable beverage particle bag can be suspended in the water when brewed, the beverage particles in the bag can be directly brewed by pouring water, a brewing effect is good, and a beverage is uniformly released; and in addition, the effect of preventing the water in a cup from shaking can be achieved, the water is prevented from being overflowed, and the bag is suitable to be used in relatively unstable environments such as an airplane and a train.

The invention discloses an unstable environment transient-state temperature measuring device based on a coarse and fine two-stage light splitting structure. The temperature measuring device comprises a front optical mechanism, a conducting fiber, a light splitting mechanism and a signal acquiring and processing module. The front optical mechanism transmits a spectrum sent by a target to the light splitting mechanism via the conducting fiber. The light splitting mechanism separates, extracts and sends characteristic spectrum signals to the signal acquiring and processing module. The signal acquiring and processing module generates voltage signals corresponding to strength of the characteristic spectrum signals, and analyzes the voltage signals based on the excitation temperature algorithm mathematic model and the radiation temperature algorithm mathematic model so as to obtain the transient-state temperature of a to-be-measured object. According to the invention, the temperature measuring device is capable of extracting characteristic spectrums of various kinds of elements in a wide spectral region and precisely measures the temperature of the target in the unstable and harsh environment with strong electromagnetic radiation and vibration and rapid temperature change.

The invention relates to a system and a method for selecting a measuring basis correction dynamic state intelligently. The system and the method are applied to an operating system in a man-machine interactive system, and have a primary function of allowing an operator to be capable of smoothly operating a computer system with a dynamic sensing system in an unstable dynamic environment, and under the condition that the dynamic sensing system is not very precise or stable. The system and the method are applicable to a vehicle-mounted remote controller, and a remote control mouse of a vehicle-mounted computer, and used for operating the computer system with a gesture in a similar unstable environment.

The invention discloses an aligning and adjusting device and method for a center line of marine shafting. The aligning and adjusting device is directly fixed on a tail shaft and paper for displaying a laser emitting point is fixed on a ship, so that precise alignment of the center line of marine shafting cannot be affected by the unstable environment of a floating dock even when the ship is in the floating dock, the center line of marine shafting can be located rapidly through the aligning and adjusting device and method for the center line of marine shafting, the alignment is simple, the precision is high, the environment applicability is high, the structure is simple, the difficulty of an original alignment method is reduced greatly, time and labor are saved, the working efficiency is high, and the risk of damage to parts due to dismounting and mounting of the tail shaft is avoided.

The invention discloses a server control method, user equipment, a storage medium and a device. According to the method, the dynamic information and the static information which influence the weight of the target server are acquired. The weight of the target server is determined according to the dynamic information and the static information, so that the weight of the server can be dynamically calculated. The service request is allocated to the target server based on the weight of the server. Therefore, the weight is dynamically adjusted according to the feedback of the server in the distribution process. The high-performance load balance can be well maintained in an environment with a complex and unstable working state of a rear-end cluster.

The invention belongs to the technical field of unmanned aerial vehicle equipment, and particularly relates to an unmanned aerial vehicle intelligent parachute device with parachute opening and parachute stopping tightly coupled; compared with the prior art, propeller sudden stop and parachute opening control of the unmanned aerial vehicle intelligent parachute device (1) with parachute opening and parachute stopping tightly coupled are integrated; two actions of parachute opening and propeller emergency stop are strongly coupled, so that the parachute opening and propeller emergency stop arein a causal relationship, the working principle that the parachute of the unmanned aerial vehicle needs to be stopped when opened and needs to be opened when stopped is completely met, and the stability of the parachute safety device is improved; (2) airborne equipment power supply control is realized, and an airborne equipment power supply can be synchronously switched off when the parachute is ejected, so that the airborne equipment is prevented from being damaged when working in an unstable environment in the parachuting process, the emergency stop capability of an out-of-control propelleris further enhanced, and the working stability of a parachute system is improved; and the device is also used for preventing a high-speed rotating propeller from hurting human bodies and properties inemergency.

The present disclosure is related to a P2P file transmission system and method, the system according to the present disclosure may include a P2P node managing system managing users connected to the system, and managing P2P file transmissions between the users; and a relay server relaying the file transmitted to the file receiver from the file sender when the P2P file transmission by the direct connection between the file sender and the file receiver fails. According to an embodiment of the present disclosure, the present disclosure provides more stable file transmissions under an unstable environment for the P2P file transmission such as NAT and the P2P file transmission system may be applied to various network places.

The invention provides a single-hand somatosensory operation system for a communication apparatus. The system comprises a starting module, an acquisition module, an execution module and an exiting module, wherein the starting module is used for, when an operation signal of the communication apparatus is monitored by a sensor and identified as a starting action gesture instruction through a low-consumption calculation unit, recovering power supply of all elements and displaying a single-hand somatosensory operation interface; the acquisition module is used for matching information obtained by analyzing the operation signal monitored by the sensor by the low-consumption calculation unit with single-hand somatosensory instruction operation stored in a memory so as to acquire corresponding function list information; the execution module is used for executing related operations; and the exiting module is used for, when the signal monitored by the sensor is analyzed to be an exiting instruction, exiting from the single-hand somatosensory operation interface and enabling the communication apparatus to enter a power-saving mode at the same time. In addition, the invention furthermore provides a single-hand somatosensory operation method for the communication apparatus. According to the single-hand somatosensory operation method and system, software can be conveniently operated in an unstable environment in a single-hand somatosensory manner.

The invention discloses a method for counting illumination time of illumination equipment, relates to the technical fields of illumination and software programming, and provides a complete solution for counting illumination time in random power failure, voltage fluctuation and other unstable environments. The method comprises a method for calculating a timing cycle and a data storage format through a central control unit (MCU) and an electronic memory, a method for detecting errors and self-recovery, and a timing method. The method solves the practical problems that the unstable environments cause illumination time data errors, the conventional design is low in time accuracy, write life of the electronic memory is mismatched with illumination life of the illumination equipment, and the like.

In this present invention it was fabricated to be relates to manufacturing a ceramic interface electrochemical reference electrode for use together with biomedical sensors. Most potentiometric biomedical sensors must have the need to be connected to a reference electrode to offer the readout circuit a stable voltage in the different solutions when measuring for providing that can provide a standard comparing voltage to avoid measuring errors caused by an unstable environment. Usually, However, the presently available commercial reference electrode we used is too big in size and inconvenient to store. For this reason we develop the ceramic interface electrochemical reference electrode which can minimize volume and need not to be preserved in the saturated solution for biosensor. Therefore, the ceramic interface electrochemical reference electrode of the present invention does not need to be stored in solution and can be minimized for use in future sensors. In addition, the present invention also relates to a ceramic interface electrochemical reference electrode.

The invention discloses a nuclear power water intake sea area blocking net tension on-line monitoring system. The system comprises tension sensors, an ocean current meter, an on-site equipment box, afar-end server and a client, wherein the number of the tension sensors is two, the two tension sensors are connected with two ends of an interception net main rope in series, the two ocean current meters are located on the front side and the rear side of an interception net body and located at the same level and the same depth, a communication module is arranged in a local equipment box, an inputend of the communication module is in wired connection with the tension sensors and the ocean current meters, an output end of the communication module is in wireless connection with the far-end server, and the far-end server is in communication connection with the client. The system is advantaged in that a problem that a common tension sensor is small in measuring range and difficult to use on aninterception net is solved, unstable environmental influences are filtered out, monitoring data are more accurate, a local end wired and far end wireless networking mode is adopted, deployment difficulty of the monitoring equipment is lowered, and adaptability to the severe working environment of a water intake mouth is enhanced.