37results about How to "Diagnosis" patented technology

This invention provides the use of conserved non-genic sequences so commonly found in most species of plants and animals for the detection of a disease and condition. The intimate and ultimately important link of the corresponding DNA sequences and expressed RNA sequences with their conserved non-genic sequence makes the detection possible. Apart from the diagnostic use, the combination of the conserved non-genic sequences with the corrected or designed DNA or RNA sequences makes treatment or improvement possible for living organisms.

The invention provides a method and a device for generating scanning chain diagnostic vector and a diagnostic method of a scanning chain. The method for generating diagnostic vector comprises the following steps that: the failure type of a scanning chain is determined; a constraint condition is set according to the failure type of the scanning chain; under the constraint condition, the logic state of a scanning unit can obtain maximum transmitted output or false output number through a path formed by combinational logic, thereby generating scanning chain diagnostic vector. The device for generating diagnostic vector comprises the following parts: a failure type distinguishing unit used to judge the failure type of a scanning chain, a constraint condition unit used to set a constraint condition according to a failure type and a diagnostic vector generating unit used to ensure that the logic state of a scanning unit can obtain maximum transmitted output or false output number through a path formed by combinational logic so as to generate scanning chain diagnostic vector. The method and the device can effectively tolerate the failure in combinational logic without bringing hardware spending to a circuit.

The present invention realizes a Doppler velocity detecting technique capable of performing velocity detection and analysis with a suppressed error while excellently distinguishing a clutter signal, and provides an ultrasonographic device using the technique. In a Doppler velocity detection device comprising means for transmitting / receiving pulse waves to / from a subject a plurality of times, and velocity analyzing means for analyzing a velocity of a moving reflector in the subject on the basis of a reception echo signal, the velocity analyzing means obtains a complex expansion coefficient by linearly connecting an expansion coefficient of an even-numbered degree term and an expansion coefficient of an odd-numbered degree term which is different from the even-numbered degree term by one degree, derived when reception echo time-series signals obtained by arranging reception echo signals of equal lapse time from pulse transmission times in order of the transmission times are expanded as components of a Legendre polynomial starting from the 0th degree, by using an imaginary unit as a coefficient, and obtains a signed velocity signal of a moving reflector in the subject on the basis of-the ratio between the magnitude of each complex expansion coefficient and the magnitude of an interval between the complex expansion coefficients.

A medium storage device writes the data on a medium by a write element and executes the diagnosis of a write system path without dropping the performance of the device. For a write command from a host, write data is stored in a data memory, a response is returned to the host, then the data is written back from the data memory to a storage medium. During this write back, partial data, including the final portion of the write data, is read from the storage medium, and the data is compared. Therefore the write system path can be diagnosed without affecting the host, and since partial data including the final portion is the target, diagnosis in a short time can be implemented, and a drop in performance can be minimized.

The in-situ fault diagnosis system for temperature and flow rate sensor in water system of central air conditioner includes mainly data acquisition module, noise filter module, stable stat fault sata judging module, fault detecting module, memory module, fault diagnosis module, diagnosis result confidence judging module, and data restoring and output module. The fault diagnosis system adopts statistical mathematics process based on concersation of energy and conversation of mass in in-situ diagnosis of drift faults in temperature and flow rate sensors in water system of central air conditioner. The fault diagnosing system of the present invention can diagnose the fault in sensors and judge the position and size of the fault accurately.

In a method for controlling an electromagnetic valve, the temperature of the valve is detected, and activation of and / or the current feed to the valve are performed as a function of the temperature of the valve.

An intelligent fault diagnosis and treatment method for a speed controller main servomotor, main distributing valve and proportional valve hydraulic servo system comprises the steps that (1) a speed controller electronic control system assign initial values of k1*and K12*; (2) the speed controller electronic control system collects the guide vane opening feedback value set as Y, the guide vane opening, set as Y<set>, output by a PID module of the speed controller electronic control system, the main distributing valve position, set as M<set>, output by a guide vane opening control module of thespeed controller hydraulic servo system, the main distributing valve position feedback set as M, the proportional valve position, set as B<set>, output by a main distributing valve control output, the proportional valve position feedback set as B and other data in real time; (3) whether the absolute value of B<set> minus B is larger than a threshold value b or not is judged, if the time of the situation that the absolute value of B<set> minus B is larger than the b is kept for longer than t1, a proportional valve hydraulic servo fault is reported, and fault treatment is executed; (11) if a standby is provided and out of trouble, the standby is switched on; if the standby is faulty or no standby is provided, the generator set is switched to manual operation, and if the fault is manually cleared and the generator set is switched to the manual state, the second step is executed again. By the adoption of the intelligent fault diagnosis and treatment method for the speed controller main servomotor, main distributing valve and proportional valve hydraulic servo system, the fault of the main servomotor, main distributing valve and proportional valve hydraulic servo system can be rapidlyand accurately diagnosed, and the situation that an accident expands, so that the unit load cannot be normally adjusted, even the load fluctuates greatly, and a series of problems are caused is avoided.

A remoter monitor-control system for domestic central air conditioner is composed of primary control board for receiving telephone information and sending instructions of each secondary control boardand secondary control boards for receiving and executing said instructions. The said primary control board consists of CPU, communication unit and telephone signal processing unit. The said secondarycontrol board comprises CPU, communication unit and control unit. With the program controlled telephone or mobile telephone, the running of domestic central air conditioner can be monitored and controlled.

The invention discloses an environmental protection device intelligent monitoring diagnosis system which comprises a sensor module, an intelligent transmitter interface module, a network coupling processor, bus-type networks and a monitor center server. A signal output terminal of the sensor module is connected with a signal input terminal of the intelligent transmitter interface module. The intelligent transmitter interface module is connected with the network coupling processor. The network coupling processor is connected with the monitor center server through the bus-type networks. According to the invention, a sensor is independent of various different bus-type networks, and a problem that the sensor is incompatible with the various networks is solved; an environmental protection device state is monitored, device fault is diagnosed, and a device expert system service and remote device operation supervision are provided for environmental protection supervision departments, thus monitoring and fault diagnosis of a key pollution source environmental protection device is reinforced, environmental protection device human-made shutdown or fault shutdown which influences normal usage is prevented, and rapid fault diagnosis and maintenance of the environmental protection device are accelerated.

The invention discloses a high-voltage circuit breaker fault diagnosis method based on adaptive grey correlation analysis, which comprises the following steps: step A, acquiring multiple groups of fault current signals of switching-on and switching-off coils of high-voltage circuit breakers of various fault types, and respectively performing Hilbert-Huang transform, extracting current and time characteristic values to form a fault characteristic sequence, and performing FCM clustering on all fault characteristic sequences to obtain a typical fault characteristic sequence of each fault type; B,acquiring an operation current signal of a closing and opening coil when the high-voltage circuit breaker operates, performing Hilbert-Huang transform on the operation current signal, and extractingcurrent and time characteristic values to form a to-be-diagnosed characteristic sequence; and C, performing gray correlation analysis on the to-be-diagnosed feature sequence and the typical fault feature sequence of each fault type so that the gray correlation degree of the to-be-diagnosed feature sequence and the typical fault feature sequence of each fault type is obtained, and thus the fault type of the to-be-diagnosed feature sequence is obtained.

This invention provides compositions and methods to diagnose and treat polycystic disorders by inhibiting the biological activity of a gene now correlated with appearance of this disorder. By way of illustrative only, the Tissue Growth Factor-alpha (TGF-α) gene is an example of such a gene. Also provided by this invention are compositions and methods to treat or ameliorate abnormal cystic lesions and diseases associated with the formation of cysts in tissue. The methods and compositions treat and ameliorate pathological cyst formation in tissue by inhibiting or augmenting gene expression or the biological activity the gene expression product, or its receptor.

Provided is a microanalytical chip that is capable of controlling sequential sending of a plurality of solutions of mutually different viscosities and interfacial tensions. The microanalytical chip includes: a main conduit including a detecting portion and / or a reacting portion; a first introduction conduit and a second introduction conduit for introducing a solution to the main conduit from a further upstream position than the detecting portion and the reacting portion; and a third introduction conduit for introducing a. solution to the main conduit, wherein W2<W<Wm and W≦W1 are satisfied, wherein W1 denotes a minimum groove width of the first introduction conduit, W2 denotes a minimum groove width of the second introduction conduit, W3 denotes a minimum groove width of the third introduction conduit, and Wm denotes a minimum groove width of the main conduit.

The invention provides a temperature and humidity control method and a control system for air conditioners in coating workshops. On the basis of the regional control mode of a PLC system, the accuracy of the temperature and the humidity is greatly improved, and the energy is saved for production enterprises; the purposes of lowering the cost and increasing the benefit for the production enterprises, saving the energy and protecting the environment are realized.

The present invention realizes a Doppler velocity detecting technique capable of performing velocity detection and analysis with a suppressed error while excellently distinguishing a clutter signal, and provides an ultrasonographic device using the technique. In a Doppler velocity detection device comprising means for transmitting / receiving pulse waves to / from a subject a plurality of times, and velocity analyzing means for analyzing a velocity of a moving reflector in the subject on the basis of a reception echo signal, the velocity analyzing means obtains a complex expansion coefficient by linearly connecting an expansion coefficient of an even-numbered degree term and an expansion coefficient of an odd-numbered degree term which is different from the even-numbered degree term by one degree, derived when reception echo time-series signals obtained by arranging reception echo signals of equal lapse time from pulse transmission times in order of the transmission times are expanded as components of a Legendre polynomial starting from the 0th degree, by using an imaginary unit as a coefficient, and obtains a signed velocity signal of a moving reflector in the subject on the basis of-the ratio between the magnitude of each complex expansion coefficient and the magnitude of an interval between the complex expansion coefficients.

The invention discloses a turbojet engine pressure measurement and diagnosis method and device. A pressure sensor is used for collecting pressure, the pressure is converted into a voltage signal, a processor controls a self-checking signal generating circuit to generate a self-checking signal, the self-checking signal and the pressure signal are transmitted to the analog switch for channel selection, and a selected signal is converted by a signal measurement circuit and transmitted to the processor. Working characteristics of a turbojet engine are utilized; when the collected pressure changesabnormally and does not accord with the state collection quantity, it can be preliminarily determined that pressure signal measurement may have a fault, self-checking is carried out then to diagnose the fault, high reliability of pressure measurement is ensured, rapid and real-time control of the engine is ensured, and pressure signal measurement is diagnosed. Excessive redundancy design is avoided, the problem of increasing the complexity of the system is avoided, and by means of channel selection of the analog switch, multiple pressure signals are measured, and a detection point with abnormal pressure can be diagnosed and located.

A control apparatus according to the present invention is applied to a hybrid vehicle with a manual transmission. The control apparatus, when a neutral switch is outputting a detection signal with an internal combustion engine stopped and the vehicle at a halt (S31, S32), controls a motor generator such that the manual transmission is supplied with torque (S35 to S39), and starts the internal combustion engine in accordance with a releasing operation for the clutch when the time rate of change (S40) of the input side rotating speed of the manual transmission as a result of torque providing control does not satisfy a predetermined reference.

The invention discloses a household intelligent distribution system, and the system comprises a control module. The control module is connected with a function module, and is in integrated or split connection with the function module. Through the above scheme, the system can achieve the management of a household electric appliance circuit switch at any time, can obtain the use conditions of electric appliances, carries out the diagnosis of a fault of electric appliances, and achieves the digitalization, modularization, quantification, precision and visualization of a distribution field through the perfect combination of the information technology and the IOT (Internet of Things) technology.

The invention discloses a scanning device for medical three-dimensional ultrasound imaging. The scanning device includes a base, wherein a first guide rail is installed on the top surface of the base,two first electric sliders are arranged on the first guide rail, and semicircular sleeves are fixedly installed on the two first electric sliders; the two semicircular sleeves have opposite concave surfaces, a vertical second guide rail is fixedly installed on the inner side surface of one of the semicircular sleeves, and a second electric slider is installed on the second guide rail, and a horizontal circular ring is fixedly installed on the second electric slider. The scanning device is suitable for medical three-dimensional imaging scanning, different detection scanning modes can be adopted by doctors according to specific situations, and the lesion parts of patients can be found conveniently and fast by the doctors through three-dimensional stereo images or two-dimensional expanded views; and since the device has multiple scanning modes, convenience is provided for observation of the doctors, communication between the patients and the doctors and mutual discussion among the doctors, and diagnosis of diseases is facilitated, so that rapid recovery of the patients is facilitated.

The invention discloses a battery management system and a detection method thereof. The system comprises a controller, a plurality of master-slave modules connected in series, a current sensor connected with the controller, a plurality of battery management modules connected in series, a plurality of external connectors and a plurality of internal connectors, wherein the current sensor is used forcollecting a current of the master-slave modules; the adjacent master-slave modules are connected through the external connector, and a master module and a slave module in each master-slave module are connected through the internal connector; for each battery management module, the battery management module is used for managing corresponding master-slave modules and external connectors connectedwith the master-slave modules; and the controller is used for judging whether the plurality of external connectors have faults or not based on the sampling data and the currents of the plurality of external connectors when the currents are not zero, and judging whether the plurality of internal connectors have faults or not based on the sampling data and the currents of the plurality of battery cells in the plurality of master-slave modules. According to the embodiment of the invention, fault detection of the inter-module connector is realized.

An apparatus and method for controlling a linear compressor are provided. In more particular, for solving the problem of limitation of compatibility in the present technology, the apparatus and method may identify a kind of motor of a linear compressor, based on an output which may be measured by applying a test signal to the linear compressor, and may control the linear compressor depending on the identified kind of motor. The apparatus and method may diagnose whether the linear compressor has broken down, and thus, the kind of motor may be autonomously identified without a separate device or a measurement operation, control suitable for a characteristic or characteristics of the motor may be accurately and efficiently controlled, and maintenance, repair, and inspection of the linear compressor may be simply and easily performed.

The invention relates to a method for acquiring a network equipment forwarding state in a software defined network. The method comprises the following steps: step (1), configuring a probe packet which carries an appointed a VLAN (Virtual Local Area Network) label; step (2), distinguishing a normal data packet and the probe packet through a first flow table in a plurality of flow tables; and step (3), adding an extra instruction for a flow table entry of a flow table except the first flow table in the plurality of flow tables. The invention provides the method for acquiring the network equipment forwarding state in the software defined network, the true forwarding state of network equipment can be acquired simply and effectively by acquiring and carrying the identification of each flow table entry in the network equipment, meanwhile, almost no extra bandwidth is needed to bear the probe packet that carries information.

The online fault diagnosis system for temperature and flow sensors of the central air-conditioning water system mainly includes data acquisition, noise filtering, steady-state data judgment, fault detection, storage, fault diagnosis, confidence judgment of diagnosis results, data recovery and output modules. Using the method of statistical mathematics, according to the energy conservation and mass conservation of the system, the online fault diagnosis is carried out for the drift fault of the temperature and flow sensor of the air-conditioning water system. Not only is it effective for the diagnosis of multiple sensor faults, but it can also accurately diagnose the location and size of the fault.

The invention provides a synchronous motor current sensor fault diagnosis method and device and a frequency converter. The synchronous motor current sensor fault diagnosis method comprises the following steps: obtaining a sampling value of current of a synchronous motor; establishing a Lenberg observer model according to a current state equation of the synchronous motor, and obtaining an observed value of the current through a Lenberg observer; and when the deviation of the observed value and the sampling value exceeds a preset difference threshold value, judging that the current sensor has fault. According to the technical scheme, the synchronous motor current sensor fault diagnosis method and device can judge the fault of the current sensor timely and accurately, facilitate workers to carry out trouble removal and improve system operation reliability.

The relay diagnosis device according to the present invention comprises: a diagnosis unit for a parallel battery pack assembly comprising a first battery pack having a first battery module and a first positive relay and a second battery pack having a second battery module and a second positive relay, the diagnosis switch and the diagnosis resistor are connected between the first battery pack terminal and the second battery pack terminal; a first detector for detecting a current of the first battery module; a second detector for detecting a current of the second battery module; and a control unit that collects a first detection value from the first detector and a second detection value from the second detector in a first diagnosis period in which the first positive relay and the second positive relay are in the open operating state and the switch is diagnosed to be in the closed operating state. The control unit determines a normally-closed failure of the first positive relay and a normally-closed failure of the second positive relay based on the first detection value, the second detection value, and a first threshold value.