389 results about "System diagnosis" patented technology

A vibrational analysis system diagnosis the health of a mechanical system by reference to vibration signature data from multiple domains. Features are extracted from signature data by reference to pointer locations. The features provide an indication of signature deviation from a baseline signature in the observed domain. Several features applicable to a desired fault are aggregated to provide an indication of the likelihood that the fault has manifested in the observed mechanical system. The system may also be used for trend analysis of the health of the mechanical system.

A vibrational analysis system diagnosis the health of a mechanical system by reference to vibration signature data from multiple domains. Features are extracted from signature data by reference to pointer locations. The features provide an indication of signature deviation from a baseline signature in the observed domain. Several features applicable to a desired fault are aggregated to provide an indication of the likelihood that the fault has manifested in the observed mechanical system. The system may also be used for trend analysis of the health of the mechanical system.

The present invention is directed to a method and system for monitoring function and / or diagnosing dysfunction of the cardiovascular system of a human subject. The method comprise measuring pulse wave signals of the subject during rapid excitation of the cardiovascular system, analyzing the measured signals and computing indicators reflecting a response to said excitation. The cardiovascular excitation preferably comprise a controlled breathing protocol characterized by a predefined frequency of breaths (e.g., about 0.1 Hz).

An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation of the vehicle which are related to the system. The digital samples are stored in memory.

The present invention relates to systems and methods for distributing control information such as event notifications and status in a substantially real time manner. Such information can be provided in a parallel and concurrent manner to many locations / devices and / or users. In addition, multi-directional network communications are provided to facilitate system diagnosis, status, and troubleshooting among various parties and / or devices. In one aspect of the present invention, messaging components may be installed on local control components and remote diagnostic equipment that communicate across a network such as the Internet. If an event is detected, various parties can be contacted by the control components, wherein the parties may communicate in a concurrent manner while receiving control information from the control components. In this manner, diagnosis, troubleshooting, and / or routine maintenance can be performed collaboratively between various control components and remote systems / parties interacting therewith.

An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation of the vehicle which are related to the system. The digital samples are stored in memory.

A modular multi-axis motion control and driving system is developed by using advanced Digital Signal Processor (DSP) and Field Programmable Gate Array (FPGA) technologies. A modular multi-axis motion control and driving system comprises: a control board comprising a DSP and Flash ROM connected to each other, for performing position control and current control of said system; a plurality of driver boards, connected to the control board through a bus, each of which comprise a FPGA device and a plurality of MOSFET power amplifier, for driving a plurality of servo motors; a computer, connected to said control board, for providing graphic user interface, through which motor setting, current and position loop tuning and diagnostic can be performed; Wherein, a control program, system parameters and FPGA configuration file are stored in said Flash ROM, when the system power is on, the DSP automatically executes an loader firmware to transfer the control program from said Flash ROM to the memory of DSP for execution, then the DSP reads the FPGA configuration file from the Flash ROM and configure the FPGA in the driver board, after that, the control program runs into a circulation loop to do system diagnose, network service and check command queue, while the current and position controls are implemented in an interrupt service.

An apparatus and method for diagnosing a cooling system includes a first sensor operable to detect a compressor supply amperage, a second sensor operable to detect a compressor supply voltage, and a third sensor operable to detect a compressor rotational speed. A controller in communication with the first, second and third sensors communicates with a computer that compares at least two of the supply amperage, supply voltage and rotational speed with normal operating parameters, and outputs a diagnosis.

A system and methods of diagnosing and monitoring neurological disorders in a patient utilizing an artificial intelligence based system. The system may comprise a plurality of sensors, a collection of trained machine learning based diagnostic and monitoring tools, and an output device. The plurality of sensors may collect data relevant to neurological disorders. The trained diagnostic tool will learn to use the sensor data to assign risk assessments for various neurological disorders. The trained monitoring tool will track the development of a disorder over time and may be used to recommend or modify the administration of relevant treatments. The goal of the system is to render an accurate evaluation of the presence and severity of neurological disorders in a patient without requiring input from an expertly trained neurologist.

A system for a diesel engine having an intake manifold and an exhaust manifold, comprises a turbocharger between the intake and exhaust manifolds of the engine; a low pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold downstream of the turbocharger and a second end couple to the intake manifold upstream of the turbocharger, said low pressure exhaust gas recirculation having a first valve coupled thereto for regulating flow; a high pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold upstream of the turbocharger and a second end coupled to the intake manifold downstream of the turbocharger, said high pressure exhaust gas recirculation having a second valve coupled thereto for regulating flow; a first mass airflow sensor coupled in the engine intake manifold upstream of an inlet of said second end of said low pressure exhaust gas recirculation system; and a control system configured to diagnose the degradation of said first mass airflow sensor.

A configurable multi-function flow measurement apparatus is provided that can selectably function to measure the speed of sound propagating through a fluid flowing within a pipe and / or to measure pressures disturbances (e.g. vortical disturbances or eddies) moving with a fluid to determine respective parameters of the flow propagating through a pipe and detects the health of an industrial process. The configurable flow measurement device can also be selectable to function as a system diagnostic meter that provides a diagnostic signal indicative of the health of the industrial process, namely health of pumps, valves, motors and other devices in an industrial flow loop. The apparatus includes a sensing device that includes an array of strained-based or pressure sensors used to measure the acoustic and convective pressure variations in the flow to determine desired parameters. In response to a remote or local configuration signal, a control logic selects the desired function of the flow measurement apparatus.

A system and method for diagnosing a software system within a remote electronic device using a network is provided. A diagnostic controller controls diagnostics of the software system by instructing the remote electronic device to replace a selected software component of the software system with a diagnostic software component. The diagnostic software component has equivalent operational characteristics as the selected software component and includes trace logic that collects diagnostic data while operating with the software system. An analysis routine analyzes the diagnostic data and recommends a corrective measure for the software system.

A system and methodology that employs an agent technology logic layer operating in connection with or integral to a controller is provided. The logic layer can be a functional extension of the controller's firmware that facilitates logical reasoning and decision-making with regard a network as a function of individual agent(s) state and / or status. The components of the subject invention can facilitate combining high level reasoning and / or decision making capabilities with conventional control programs to effect agent-based system diagnosis and / or system reconfiguration.

An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation of the vehicle which are related to the system. The digital samples are stored in memory.

A system and method of diagnosing diseases from biological data is disclosed. A system for automated disease diagnostics prediction can be generated using a database of clinical test data. The diagnostics prediction can also be used to develop screening tests to screen for one or more inapparent diseases. The prediction method can be implemented with Bayesian probability estimation techniques. The system and method permit clinical test data to be analyzed and mined for improved disease diagnosis.

A multi-analyte diagnostic system for use with a computer. The diagnostic system includes a flow analyzer including a co-planar light source-optical detector array, the flow analyzer being communicatable with the computer. The diagnostic system also includes a memory medium readable by the computer and storing computer instructions. The instructions include the following steps. A biological sample is run through the flow analyzer. The identity and quantity of at least one analyte of interest in the biological fluid is determined substantially simultaneously to the sample-running step.

A method of diagnosing sensor faults for a heating, ventilation and air conditioning system includes the steps of creating a component model for a specific component within the system. The component model is created through the use of commonly available manufacturing data. Data within the system is input into the component model and compared to calculated and predicted values that are also calculated using the identical component models. Differences between the calculated and actual values is determined and compared to a threshold difference value. If the difference exceeds the threshold value, then a fault is detected. The specific type of sensor fault is determined using probability distribution analysis. Each type of sensor fault produces a different type of statistical deviation from normal distribution. By recognizing these patterns of deviations from the normal distribution, the specific type of fault such as electrical, intermittent or freezing of the sensor can be determined to provide initial information as to the severity and type of remedial action required.

A diagnostic system in accordance with the invention is housed in a hand-held personal communications device (PCD). The diagnostic system includes a data capture system that is used to capture diagnostic data. The diagnostic system also includes a data storage system and a processing system. The data storage system stores reference diagnostic data that is used by the processing system in conjunction with the captured diagnostic data to obtain a diagnostic result.

A system for a diesel engine having an intake manifold and an exhaust manifold, comprises a turbocharger between the intake and exhaust manifolds of the engine; a low pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold downstream of the turbocharger and a second end couple to the intake manifold upstream of the turbocharger, said low pressure exhaust gas recirculation having a first valve coupled thereto for regulating flow; a high pressure exhaust gas recirculation system with a first end coupled to the exhaust manifold upstream of the turbocharger and a second end coupled to the intake manifold downstream of the turbocharger, said high pressure exhaust gas recirculation having a second valve coupled thereto for regulating flow; a first mass airflow sensor coupled in the engine intake manifold upstream of an inlet of said second end of said low pressure exhaust gas recirculation system; and a control system configured to diagnose the degradation of said first mass airflow sensor.

In one embodiment, the invention is a computer-implemented method that (i) launches a diagnostic tool designed for use with a primary software application, (ii) determines whether a diagnostic definitions file (DDF) needs to be updated, (iii) updates the DDF, if needed, (iv) performs one or more of the diagnostic tests specified in the DDF, (v) determines whether the result produced by each performed diagnostic test is equivalent to the expected result for the performed diagnostic test, and (vi) performs the failure action specified for each performed diagnostic test whose result is not equivalent to the expected result for the performed diagnostic test. The DDF has information specifying: (i) the one or more diagnostic tests, (ii) an expected result for each diagnostic test, and (iii) a failure action to be performed for each diagnostic test, if the result produced by the diagnostic test is not equivalent to the expected result.

A method (and structure) of operating an operating system (OS) on a computer. When a failure of the OS is detected, the computer automatically performs a diagnosis of the OS failure. The computer also attempts to automatically repair / recover the failed OS, based on the diagnosis, without requiring a reboot.

A software and hardware system and an associated methodology provides ATE-independent go / no-go testing as well as advanced failure diagnosis of integrated circuits for silicon debug, process characterization, production (volume) testing, and system diagnosis comprises an embedded test architecture designed within an integrated circuit; means for seamlessly transferring information between the integrated circuit and its external environment; and an external environment that effectuates the seamless transfer for the user to perform relevant test and diagnosis.

The invention discloses a fault diagnosis expert system based on a decision tree for an industrial Ethernet network. Firstly, an expert system comprising a knowledge base, an inference engine, a knowledge base management module, a knowledge acquisition module, an explanation facility and a control center is established; secondly, the knowledge base is utilized to contact the inference engine and the control center to obtain data required by the modules for storing a diagnosis rule, various pieces of data of the system and an intermediate result generated during the system diagnosis period; thirdly, comparison, commonly called as matching, is carried out between a condition part of a rule base and a content of a global data base through the inference engine, if matching is successful, a conclusion part is displayed, the global data base is modified according to an action part of an enable rule, the changed global data base can trigger a new rule, so that problem solving proceeds to the next state, and so forth, one problem is finally solved; and lastly, post processing is carried out through the inference engine, a new knowledge base is updated by the control center, so that the expert system is gradually improved.

An onboard cooling system diagnostic strategy utilizes at least one temperature sensor fluidly positioned between an electronically controlled engine and a thermostat. The diagnostic algorithm operates by monitoring coolant temperature during engine startup. By comparing the actual coolant temperature during engine start-up to a predicted coolant temperature that should occur if no cooling system error is present, a cooling system fault condition may be identified. If a cooling system fault is detected, the diagnostic logic may activate the engine cooling fan or intrusively open an electrically controlled thermostat while monitoring the coolant temperature response to the intrusive action. If there is a substantial change in coolant temperature responsive to the intrusive action, this phenomenon can be utilized to correctly distinguish between a thermostat failure and a vehicle configuration error corresponding to an overcooled vehicle. The present disclosure also can utilize a similar strategy to diagnose problems associated with other vehicle fluid coolers that exchange heat with ambient air moved by a circulation fan.

An integral electronic revenue meter system diagnostics package including a microprocessor, storage memory, preselect series of system diagnostic tests, and recording any results which exceed predefined programmable thresholds, and display means for displaying error and / or diagnostic messages identifying selected diagnostic data and / or errors discovered in the meter tests during a predefined period is included as part of an electricity revenue meter of the type used for collecting metering data for a utility which uses such data for billing purposes. The system automatically senses the type of electrical service in which the revenue meter is installed when the revenue meter is installed in a socket at the customer's premises.

The Advanced Logic System (ALS) is a complete control system architecture, based on a hardware platform rather than a software-based microprocessor system. It is significantly different from other PLC-type control system architectures, by implementing a FPGA in the central control unit. Standard FPGA logic circuits are used rather than a software-based microprocessor which eliminate problems with software based microprocessor systems, such as software common-mode failures. It provides a highly reliable system suitable for safety critical control systems, including nuclear plant protection systems. The system samples process inputs, provides for digital bus communications, applies a control logic function, and provides for controlled outputs. The architecture incorporates advanced features such as diagnostics, testability, and redundancy on multiple levels. It additionally provides significant improvements in failure detection, isolation, and mitigation for the highest level of integrity and reliability.

The present invention is directed to a method and system for monitoring function and / or diagnosing dysfunction of the cardiovascular system of a human subject. The method comprise measuring pulse wave signals of the subject during rapid excitation of the cardiovascular system, analyzing the measured signals and computing indicators reflecting a response to said excitation. The cardiovascular excitation preferably comprise a controlled breathing protocol characterized by a predefined frequency of breaths (e.g., about 0.1 Hz).

Diagnostic memory images are obtained from a computer system when a system freezes or fails to take a memory dump when otherwise needed. A computer system provides an improved mechanism for obtaining a memory dump of the contents of the memory associated with the particular computing system when a system freeze or crash occurs. The computing system may also correspond to a software partition running within a computing system. A software partition corresponds to a subset of the hardware under control of an instance of an operation system executing on a full computer system.

A method for diagnosing a braking system using a system including a radio-based hand-held analyzer, at least one radio-based feed valve, and at least one mobile data unit. The braking system includes at least one brake pipe section, a reservoir, and at least one brake cylinder. The brake pipe section connects to the reservoir, the brake cylinder, and the radio-based feed valve. The hand-held radio-based analyzer communicates with the mobile data unit and the radio-based feed valve. The method includes retrieving brake system data and information using the hand-held analyzer, interpreting the retrieved data and information, and performing maintenance functions based on the interpretation of the data and information.