Abstract: In a drive system switching control method of an automotive four-wheeled vehicle for switching two drive systems comprising a two-wheel drive and a four-wheel drive. The method has a step of detecting a steering angle, and a step of inhibiting the drive system switching if the detected steering angle is over a predetermined angle.

Abstract: Automated calibration of an automatic transmission design generates upshift scheduling curves in a throttle level/transmission output speed plane based upon laboratory-generated data and user generated drivability data. Downshift scheduling curves and torque converter lock-up and unlock curves are then generated as offsets from breakpoints on corresponding upshift curves, the offsets determined principally from the drivability data.

Abstract: A method for detecting a clutch fault of an automatic transmission includes determining a current clutch energy density of a clutch during a range shift and comparing the current clutch energy density to a first energy density threshold. A diagnostic alert is activated if the current clutch energy density exceeds the first energy density threshold.

Abstract: A drivetrain protection and management system (DPMS) monitors and determines individual wheel speeds to detect wheel spin and slip conditions on a drive axle. Wheel spin is caused by low surface friction, excessive input torque, lack of inter-axle differential and differential locks, excessive operating temperatures, or poor driving techniques. When wheel spin or slip exceeds a threshold, the DPMS automatically controls input torque to the drive axle by controlling engine or retarder torque. In addition to monitoring wheel speeds, the DPMS monitors other vehicle characteristics such as engine torque/speed, transmission ratio, transmission output speed, vehicle speed, throttle position, for example. The DPMS monitors and stores these vehicle characteristics over time and generates a data output that summarizes a history of vehicle operating conditions. The DPMS can communicate this data output real time during vehicle operation, which can be used by a fleet to maximize vehicle performance.

Abstract: A vehicle slip state determination system serves to calculate an estimated vehicle speed VB, an estimated vehicle deceleration in the vehicle speed DVB, and each of wheel speed differences between right front and rear wheels and between left front and rear wheels ?VR, ?VL, respectively. The wheel speed difference ?VR, ?VL are divided into three ranges, that is, range 1, range 2, and range 3 by the speed difference upper and lower limit values JVUP and JVLO, each of which is a linear function value with respect to the estimated vehicle deceleration DVB. In the ranges 1 and 3, the vehicle traveling on the road with the low friction coefficient ? is brought into the slip state where four wheels are slipped. If the wheel speed difference at a predetermined estimated vehicle deceleration deviates from a determination range defined by the upper and lower limit values, the slip state of the vehicle, that is, the condition where the vehicle is traveling on the road with the low friction coefficient ? is determined.

Abstract: An electronic engine fuel controller that is simple, low cost, easily installed, and configurable for any internal combustion engine. The system is intended for upgrading older carbureted vehicles or vehicles that have been modified beyond the limits of the OEM controller. It takes advantage of modern micro controller technology with integrated memory, digital input/output, sensor and timer channels to produce a low parts count, as well as reliable operation in a large variety of vehicles, even when installed by people with little experience of knowledge in this area. Operation is by sensing a tachometer signal from the existing distributor, ignition coil, toothed wheel or similar device that produces one electronic pulse for each cylinder cycle. When a pulse is received, software in the micro measures engine operating parameters, calculates fuel parameters, and fires one or more injectors depending on how the system is configured.

Abstract: An an internal combustion engine has a plurality of cylinders for providing the necessary energy used for the work performed by the engine. Cylinder specific knock monitoring is used in order to distribute the load automatically among the cylinders of the engine. When an individual cylinder knocks continuously, the antiknock control system of the cylinder aims at reducing permanently the quantity of fuel supplied to the cylinder. The fall in the total output caused by the reduction of fuel supply is compensated by increasing the fuel supply to all cylinders. The new operating values of the engine provided by the adjustment are stored in the memory and used also as new reference values.

Abstract: A method for operating an internal combustion engine, particularly of a motor vehicle. The internal combustion engine has a combustion chamber and an injection valve by which fuel is able to be supplied to the combustion chamber, directly or via an intake manifold. In the method, a maximum combustion chamber pressure and a signal for a start of the injection of fuel is determined, and the signal for the start of injection is influenced as a function of the maximum combustion chamber pressure. A signal for an injection duration of fuel is determined and influenced as a function of the maximum combustion chamber pressure.

Abstract: A control method for an actuator (1-4) of an injector of a fuel injection system in an internal combustion engine has the following steps: specification of a target value (SOISOLL) for the start of the injection; electric control of the actuator (1-4) at a specific trigger time (tTRIGGER) with a specific actuator energy (E); detection of an actual value (SOI1IST, SOI2 IST, SOI3 IST, SOI4 IST ) at the start of the injection; determination of the deviation between the target and actual values (DeltaSOI1, DeltaSOI2 , DeltaSOI3 , DeltaSOI4) at the start of the injection; and adjustment of the actuator energy (E) in accordance with the deviation between the target and actual values (DeltaSOI1 , DeltaSOI2 , DeltaSOI3 , DeltaSOI4) at the start of the injection to control the start of the injection.

Abstract: A technique is provided which can specify a member in which malfunction really occurs when there exists malfunction in at least one of a plurality of state values representing the state of an internal combustion engine. When an amount of fresh intake air is controlled by increasing and decreasing an amount of EGR gas in a feedback manner, and when an amount of fuel to be added to an exhaust gas is controlled based on an air fuel ratio sensor in a feedback manner, a determination is made, based on the result of comparison between output values and command values of members to be detected and corresponding reference values, as to in which member malfunction occurs. Such a determination is based on the fact that relations between output values and command values of the members to be detected and corresponding reference values in individual operating states are different from one another depending on sensors or devices in which malfunction occurs.

Abstract: An on-board intelligent vehicle system includes a sensor assembly to collect data and a processor to process the data to determine the occurrence of at least one event. The data may be collected from existing standard equipment such as the vehicle communication bus or add-on sensors. The data may be indicative of conditions relating to the vehicle, roadway infrastructure, and roadway utilization, such as vehicle performance, roadway design, roadway conditions, and traffic levels. The detection of an event may signify abnormal, substandard, or unacceptable conditions prevailing in the roadway, vehicle, or traffic. The vehicle transmits an event indicator and correlated vehicle location data to a central facility for further management of the information. The central facility sends communications reflecting event occurrence to various relevant or interested users. The user population can include other vehicle subscribers (e.g.

Abstract: A navigation system collects life information associated with a user and extracts a life pattern from the collected life information. The navigation system registers the extracted life pattern as life pattern information. The navigation system determines a predicted start time and a predicted destination based on the life pattern information and generates predicted traffic information associated with a geographical area including the destination and associated with a time range including the predicted start time.

Abstract: A navigation device decreasing the frequency at which a user data stored in a data storage section, the navigation device includes a route receiving section for receiving route data, a data selecting section for selecting candidate location data indicating at least one location which exists on the route represented by the route data or in a vicinity of the route, and a location-change designating section for designating a location of change at which a guiding method is to be changed. Further, the navigation device includes a determination section for determining whether a user has arrived at the location of change, and a navigation guidance section for guiding the user to the destination with a relatively detailed method when the determination section determines that the user has arrived at the location of change.

Abstract: A system for determining a route is provided. The system comprises a map of a geographic area, a sensing device and a computer system. The map includes coded data indicative of the map and a plurality of reference points on the map. The sensing device is operable to sense the coded data, generate indicating data relating to the map's identity and one or more of the reference points, and communicate the indicating data to the computer system. The computer system is operable to receive the indicating data, identify a geographic location from the indicating data and determine a route incorporating the geographic location.

Abstract: A robot system including a beacon provided with a transmitting part to transmit a light for location determination, and a mobile robot provided with a receiving part to receive the light. The robot system further includes a rotation driving part to rotate the transmitting part about a predetermined axis; an encoder to add phase information regarding how much the transmitting part is rotated by the rotation driving part with respect to a reference direction to the light; and a location determiner to determine a location of the mobile robot based on the phase information of the light received by the receiving part. Accordingly, a robot system is provided, which can precisely determine a location of a mobile robot regardless of external environmental conditions, distance, and reduction of cost by using a few transmitters.

Abstract: A navigation system displays different colors on sections of a travel route according to traffic density. A method for controlling a traffic information display in the navigation system includes the steps of: if a traveling route is received from a user of a moving object, displaying and guiding a corresponding travel route; determining whether or not traffic density information is requested during travel of the moving object; if the traffic density information is requested, receiving the traffic density information of the travel route from a traffic information center and searching for a predetermined color stored in a storage unit based on the received traffic density information; and displaying the predetermined color on the corresponding section of the travel route.

Abstract: For an observer equipped with a first azimuth data source responsive to a magnetic field to deliver first azimuth data, such as a compass, and with a second azimuth data source delivering second azimuth data and which is independent of magnetic fields, such as a gyroscope. The azimuth is determined by: analyzing the first and second azimuth data to determine whether a magnetic disturbance is present, and determining azimuth selectively on the basis of: the first azimuth data, the second azimuth data, or a combination of the first and second azimuth data, as a function of the result of the comparing step. In an embodiment, the choices of azimuth data source and events such as magnetic disturbances, sensor updates, types of trajectory deduced, are stored as a history sequence over successive time windows, by analogy with a DNA sequence, and is exploited for optimizing azimuth or navigation results.

Abstract: A method for collecting geographic data for use with a navigation system is disclosed. A route between a first location and a second location is identified. Data providing directions for traveling from said first location to said second location is collected. The data providing directions is stored in a geographic database. The geographic database is provided for use with navigation related features.

Abstract: A mobile terminal is configured to receive wireless communications including GPS data from a terrestrial and/or satellite wireless network, and to perform pseudo-range measurements using the GPS data that is received. The mobile terminal may be configured to perform pseudo-range measurements by receiving GPS coarse/acquisition (C/A) signals from GPS satellites, estimating Doppler shifts in the received GPS C/A signals, and estimating received code phases of the GPS C/A signals using the Doppler shifts that are estimated. The estimated code phases and/or the estimated Doppler shifts of the GPS C/A signals can provide the pseudo-range measurements. By removing the Doppler shift from the received signal samples prior to performing the code phase measurement, reduced computational complexity and/or processing time may be obtained.

Abstract: Systems and methods for reducing vibration-induced bias errors in inertial sensors are disclosed. A system for reducing bias errors in an inertial sensor operating within an environment may include a vibration detector for sensing vibration changes within the environment proximate to the inertial sensor, and a Kalman filter for computing an estimate of the navigational error produced by the inertial sensor due to a vibration-induced bias shift detected by the vibration detector. The vibration detector can be configured to measure an accelerometer output of the inertial sensor over a Kalman filter cycle, and then use the standard deviation of such output to obtain a statistical measure of the vibration within the environment. In some embodiments, the inertial sensor may include an inertial measurement unit (IMU) connected to an error compensation unit and strapdown navigator, each of which can be fed navigation corrections determined by the Kalman filter.

Abstract: A system and method for generating weather reports and the like which are precisely computed automatically for a particular individual user's geographic location, e.g., home or work, and which are provided to the individual user in both graphical and textual format in a user interactive manner. A personalized weather report presentation in accordance with the present invention may include a tabular presentation of a plurality of forecast weather conditions for the user location of interest throughout a day, along with a linked graphical representation of at least one of those weather conditions overlaid on a map centered at the user location of interest. Under user control, the user may select the time of the forecast weather conditions shown in the graphical portion of the presentation.

Abstract: A multicomponent induction logging tool is used on a MWD bottomhole assembly. Multifrequency focusing that accounts for the finite, nonzero, conductivity of the mandrel is applied. Using separation of modes, the principal components and a direction of a conductivity tensor are determined. The results are used for reservoir navigation in earth formations. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.

Abstract: A method of matching the impulse response of a hydrophone and the impulse of a geophone accelerometer comprises performing a calculus operation upon the response of one of the hydrophone and the accelerometer. A filter is then derived from the output of the calculus operation and the response of the other of the hydrophone and the accelerometer. The filter may then be used to match seismic data acquired by the one of the hydrophone and the accelerometer to seismic data acquired by the other of the hydrophone and the accelerometer. The calculus operation may comprise differentiating the hydrophone response, or integrating the accelerometer impulse response.

Abstract: “In silico” nucleic acid recombination methods, related integrated systems utilizing genetic operators and libraries made by in silico shuffling methods are provided.

Abstract: A method for predicting emissions from an emissions source. Test values of process variables relating to operation of the emissions source are gathered, along with corresponding time-correlated test values of the emissions variable to be predicted. Using the test values of the process variables, test values of a plurality of first coefficients are calculated for each process variable and associated with the process variable, and test values of a plurality of second coefficients are calculated for each value of each process variable and associated with the value of the process variable. Comparison values of the process variables relating to operation of the emissions source are gathered, along with corresponding time-correlated comparison values of the emissions variable to be predicted.

Abstract: A device, and method, detects the presence of developing faults in rolling element bearings. Detection is accomplished by measuring the vibration of the apparatus in which the bearing is operating (motor, generator, engine, etc.) and searching for signatures unique to bearing faults. These signatures are predicted by a fault signature model and recognized by a detector, both of which are part of this invention.

Abstract: A meter electronics and method for detecting a residual material in a flow meter assembly are provided according to the invention. The meter electronics includes a processing system adapted to direct the flow meter to vibrate the flow meter assembly and receive a vibrational response from the flow meter assembly. The meter electronics further includes a storage system configured to store flow meter parameters and data. The meter electronics is further characterized by the processing system being configured to compare the vibrational response to a predetermined residual material threshold to detect the residual material.

Abstract: A system and method for monitoring and fault detection in dynamic systems. A “cross-covariance” matrix is used to construct and implement a principle component analysis (PCA) model and/or partial least squares (PLS) model. This system is further utilized for monitoring and detecting faults in a dynamic system. Time series information is synchronized, with respect to a set of training data. Based on historical data, consistency of correlations between variables can be checked with respect to a given time stamp.

Abstract: Network-enabled electrical power distribution equipment includes one or more networked intelligent devices coupled to a power distribution system and measuring and storing at least one sensed condition in the power distribution system; a server in the power equipment for storing a document that can be accessed by browsers and that contains data relating to the sensed condition; a content management system in the power equipment for maintaining a document that can be accessed by browsers and that contains a log of information relating to the power equipment; and a user interface for accessing the document containing the log of information and editing the information contained in the log. The log of information relating to the power equipment may be a web log or a wiki. The content management system can be included in a web server in the power equipment, the user interface can include a web browser, and the network can include a LAN, a private WAN and/or a public WAN such as the Internet.

Abstract: This invention is a simplified method of digitally monitoring energy in a system. The power is measured at fixed periods, and the measurements summed in a register or accumulator. When the sum in the register or accumulator is equal to a specified energy divided by the fixed sample period a signal is generated. In power controllers or solid state power controllers (SSPC), this algorithm is used to the maximum energy load (I2t). In a solid state switch, this algorithm is used to monitor the energy in a switch and generate a signal when the exceeds a specified safe operating limit.

Abstract: A method for reducing an effect of a disturbance signal on an output of a dynamic system. The method includes generating an increment of the disturbance signal, and modifying an incremental signal input to the dynamic system based on the increment of the disturbance signal, thereby reducing the effect of the disturbance signal. According to one embodiment the method includes generating an increment by calculating a difference between two values sampled during consecutive sampling periods, wherein a first one of the two values is sampled during a first one of the consecutive sampling periods, and wherein a second one of the two values is sampled during a second one of the consecutive sampling periods, and wherein the two values are disturbances.

Abstract: There is provided a measuring apparatus for measuring a signal-under-test, having a comparator for sequentially comparing voltage values of the signal-under-test with a threshold voltage value fed thereto at timing of strobe signals sequentially fed thereto, a strobe timing generator for sequentially generating the strobe signals placed almost at equal time intervals, a capture memory for storing the comparison result of the comparator and a digital signal processing section for calculating jitter of the signal-under-test based on the comparison result stored in the capture memory.

Abstract: A method and apparatus for a high frequency resistance measurement instrument with a reasonable dynamic range, which militates against saturation in the presence of one or more large undesirable signals, the high frequency measurement instrument capable of employing multiple alternating currents of differing frequencies to maintain measurement capability despite signal chain saturation in the presence of a large undesirable signal.

Abstract: An operation unit executes a process for calling to a main memory first data representative of a result of equipment QC applied to a production unit. A process for reading out to the main memory an amount of change in failure in accordance with particle numbers calculated for individual defect sizes from second inspection data representative of a result of equipment QC is applied to the production unit. Electrical test data of a product processed by the production unit during a period inclusive of the time that the second inspection is carried outis also read to the main memory. A process is also executed for using the amount of change in failure in accordance with the calculated particle numbers and the particle numbers for individual sizes determined from the first inspection data to determine an impact on the product by particles generated in the production equipment when the first inspection data is detected.

Abstract: By performing a contingency-based correlation test of measurement data, such as defect data, with respect to electrical test data after progressively filtering the measurement data, an enhanced analysis of process flow characteristics may be accomplished. Consequently, an efficient yield loss estimation may be performed.

Abstract: A Bemf detect circuit is configured for modeling Bemf error via calculation of time correlations associated with two or more different non-calibrated sense resistor gain values to derive a calibrated sense resistor gain value. A method is provided for calibrating a Bemf detector circuit by setting a sense resistor gain to a plurality of different gain values, observing Bemf sample values for each of the gain values, and deriving a calibrated gain value by non-iteratively modeling the relationship between the gain values and the associated Bemf sample values.

Abstract: In one embodiment, and in response to an ordered sequence of events corresponding to execution of a plurality of tests on at least one device under test (DUT), 1) a plurality of data objects are created, the data objects including A) some data objects that correspond to logical groupings of test results implied by ones of the events, and B) a generic data object that corresponds to a user-defined one of the events; 2) ones of the data objects are related to others of the data objects in a hierarchical tree structure, with the generic data object being related to others of the data objects based on the position of the user-defined event in the ordered sequence of events; and 3) data corresponding to ones of the events is related to ones of the data objects in the hierarchical tree structure. A number of data formatters are provided access to the plurality of data objects and data associated with the hierarchical tree structure. Other embodiments are also disclosed.

Abstract: A system for performing an automated factory install peripheral test process. The system is configured so that peripherals (e.g., printers) to be tested are coupled to a hub (such as a USB hub) that is then coupled to a download test system. The download test system is coupled to the network to allow for factory install download testing. The peripherals to be tested are all plugged in to a controllable power source (such as a controllable power strip). This power source is coupled to the download test system via, e.g., a USB connection, thus allowing commands to be sent to the power source by the download test system. The peripherals being tested each have their power buttons set to an on position, but the power source is initially set so that none of the peripherals have power applied to them.

Abstract: A method is for analyzing a drive system, according to which a transfer function of a target system in the drive system is determined by applying noise signals to the drive system. Several noise signals, which cover different frequency ranges, are successively applied as an input signal. In this context, the intensity of the noise signals may be optimized in steps, as a function of the covered frequency range, in order to improve the result of the identification of a target system in the drive system.

Abstract: A method for implementing a virtual inspection of a virtually machined workpiece is disclosed. In an exemplary embodiment, the method includes defining a set of master reference planes, defining a set of positioning planes with respect to the set of master reference planes, and defining a pair of intersecting cutting planes from the set of positioning planes. The pair of intersecting cutting planes define an inspection line at the intersection thereof, wherein the inspection line is swept through a selected area of the workpiece, thereby collecting inspection data for the workpiece.

Abstract: An integrated circuit device of the invention, has a memory macro which during normal operation latches an input address in response to a control pulse and generates data output corresponding to the input address, and a test control circuit 22 which during testing performs memory macro characteristic tests. A ring oscillator is configured by connecting a prescribed number of stages including one or more memory macro units, having a memory macro and a pulse generation circuit which during testing generates a control pulse for tests in response to an input pulse, and the test control circuit measures the oscillation frequency or period of the ring oscillator.

Abstract: An apparatus for automatically inserting connectors and coupling test probes to circuit boards, such as computer system boards and the like. The apparatus enables connectors to be automatically inserted into mating connectors on a circuit board device under test (DUT). Connectors may be automatically inserted along 1-4 axes. The apparatus includes replaceable probe/connector plates that are DUT-type specific, as well as DUT-type specific side access units. The apparatus may also be used for inserting memory devices and microprocessors, and further enables peripheral devices to be operatively coupled to expansion bus connectors on the DUT. In one embodiment, a single actuator is employed to actuate up to four insertion axes simultaneously.

Abstract: A bus station for connection to a bus system for a restraining device and/or sensor is used for muting a defective bus station or to have automatic error management carried out in the bus station, to enable the bus station to transmit properly again. For this purpose, the transmitting current and/or the power consumption of the bus station is monitored. The transmitting stage is triggered and, if appropriate, isolated from the bus station as a function of this monitoring. In a refinement a backup transmitting stage may be connected as a replacement for the defective transmitting stage.

Abstract: A handheld computing device for use in hospitals, operating rooms, and other medical care facilities. The handheld computing device includes a processor, display, user interface, memory, one or more embedded environmental sensors, and one or more scanners for reading identifier codes that uniquely identify sterile and non-sterile supplies, instruments and disposable components thereof and other inventory items and supplies that are used in the course of a medical procedure such as surgery. To manage the accounting of various items used in an operating room for example, the handheld computing device is provided with an RF tag reader and a barcode reader to read and identify medical items that are used in the course of a medical procedure. In the course of scanning such identifier codes, the handheld computing device receives inventory accounting information that is stored within the memory of the device, and which can be subsequently downloaded and transferred to one or more external databases.

Abstract: Thermal diagnostic systems and methods are provided for improved detection of airflow anomalies in a computer system. In particular, processor load is selectively increased to amplify the effects caused by any airflow anomaly that may be present in the computer system. Workload migration may be used to shift processor load from another node to a target node. Artificial load may also be generated on the target node. The processor load increased to a level sufficient that an airflow anomaly would cause a detectable temperature difference at the selected node. The processor load may be increased by an amount computed to generate this detectable temperature difference. Alternatively, the processor load may be increased by a predetermined amount of between 40% and 100% of full processor utilization. While at the increased processor load, actual temperature sensed by temperature sensors may be compared to temperatures predicted from the model to detect the presence or absence of an airflow anomaly.

Abstract: There is provided an activity recognition apparatus for detecting an activity of a subject. The apparatus includes: a sensor unit including a plurality of linear motion sensors configured to detect linear motions and a plurality of rotational motion sensors, the linear motions being orthogonal to each other, the rotational motions being orthogonal to each other; and a computational unit configured to receive and process signals from the sensors included in the sensor unit so as to detect an activity of the subject. The sensor unit is directly or indirectly supported by the subject with an arbitrary orientation with respect to the subject. The computational unit performs a calculation that uses the signals from both linear motion sensors and rotational motion sensors to determine the activity of the subject independent of the orientation of the sensor unit.

Abstract: A scanning probe microscope (SPM) based measuring technique for measuring surface features of a sample fits a curve to a family of feature edge points acquired as a result of an SPM scan of the surface feature. If two curves are fit on opposed edges of the feature of interest, the maximum or minimum distance between those curves can be determined to ascertain a dimension of interest such as a maximum via width, a minimum line width, etc. The scan is preferably a relatively low-resolution scan in the Y direction, typically having 8-12 scan profiles passing through the feature of interest low-resolution, which is about half that typically used by prior techniques. The low-resolution scan can be performed relatively rapidly and with high repeatability. Repeatability is also higher than with prior techniques, and the level of repeatability is relatively insensitive to the resolution in the Y direction.

Abstract: A service diagnosis tool for performance analysis and failure remediation of electromechanical devices, e.g. printers or copiers. The tool communicates with an actual device of a specific type, and accesses data from a knowledge data set containing knowledge relating to properties of devices of the specific type, a device data set and a history data set. The device data set contains parameters of the actual device, including actual error data indicating errors that occurred in an actual period. The historical data includes historical error data of the actual device relating to errors, performance and/or remediation that occurred before the actual period. The tool has a calculation unit for analyzing and combining data from the data sets for generating a prioritized item list indicative of remedial steps to be executed. The items in the list relate to performance and/or failure of the actual device, and are organized according to priority rules.

Abstract: A work scheduling method utilizes a Computerized Maintenance Management System (CMMS) which communicates with a work order database and a labor pool database, each having a plurality of entries therein. A resource leveling program accesses the entries in the databases and applies an order of fire to the entries to utilize available manpower in a manner which at least attempts to achieve plant success through the provision of at least a draft work schedule. After running the resource level program, the preferred embodiment allows user input to affect at least portions of the order of fire to allow modification and an ability to rerun the program.

Abstract: An improvement support system including an input unit, a display, an arithmetic processing unit and a storage unit, the storage unit stores analytical data containing analytical information corresponding to “phenomenon” or “influence” and “cause” or “measures” for each of failure modes, and malfunction generation historical data in which malfunction information formed based on the contents of malfunction and related to the failure mode of the analytical information is sequentially accumulated every time the malfunction is detected after the system is started. The arithmetic processing unit has a function of retrieving the analytical data using the malfunction information as a key and detecting the failure mode correlated with the malfunction. Thus, the number of malfunctions related to the analytical information regarding each failure mode is counted and the total number of malfunctions related to the failure mode is displayed with the contents of the failure mode in the display.