A medical ultrasonic diagnostic imaging system is provided which is capable of being accessed over data communication networks such as the Internet, making the ultrasonic images, diagnostic reports, and ultrasound system diagnostics information and operation accessible to a conventional personal computer using commercially available software at virtually any remote location. In one embodiment, the ultrasound system can be remotely operated from the personal computer. The inventive apparatus and techniques make it possible for physicians to remotely access, control, and perform diagnoses using their ultrasound systems over a network such as the World Wide Web with no special hardware requirements.

Ultrasonic diagnostic imaging system with universal access to diagnostic information and images

A monitoring system for a heating, ventilation, and air conditioning (HVAC) system of a building includes a monitoring device installed at the building, a monitoring server located remotely from the building, and a review server. The monitoring device measures an aggregate current supplied to components of the HVAC system and transmits current data based on the measured aggregate current. The monitoring server receives the transmitted current data and, based on the received current data, assesses whether failures have occurred in first and second components of the HVAC components. The monitoring server generates a first advisory in response to determining that the failure has occurred in the first component. The review server provides the first advisory to a technician for review and, in response to the technician verifying that the failure has occurred, transmits a first alert.

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Hvac system remote monitoring and diagnosis

https://pscfiles.tamu.edu/symposia/2005/050%20Arunraj.pdf

Risk-based maintenance—Techniques and applications

A monitoring system for a heating, ventilation, and air conditioning (HVAC) system of a residence includes a monitoring device installed at the residence and a server located remotely from the residence. The monitoring device measures an aggregate current supplied to a plurality of components of the HVAC system and transmits current data based on the measured aggregate current. The server receives the transmitted current data and, based on the received current, assesses whether a failure has occurred in a first component of the plurality of components of the HVAC system and assesses whether a failure has occurred in a second component of the plurality of components of the HVAC system.

Residential solutions hvac monitoring and diagnosis

Ultrasonic arrays allow a given scatterer to be illuminated from a wide range of angles and hence are capable of extracting significant information about the scatterer. In this paper a general imaging methodology, termed multi-mode total focusing method, is proposed in which any combination of modes and reflections can be used to produce an image of the test structure. Like the total focusing method, this approach is implemented by post-processing the full matrix of array data to achieve a synthetic focus at every pixel in the image. A hybrid model is used to predict the array data and demonstrate the performance of the multi-mode imaging concept. This hybrid model combines far field scattering coefficient matrices with a ray-based wave propagation model. This allows the inclusion of longitudinal waves, shear waves and wave mode conversions. It is shown that, with prior knowledge of likely scatterer location and orientation, the mode combination and array location can be optimised to maximise the performance of array inspections. A practically relevant weld inspection application is then described and its optimisation is discussed.

Defect detection using ultrasonic arrays: The multi-mode total focusing method

PROBLEM TO BE SOLVED: To obtain a highly accurate and reliable temperature measuring apparatus insusceptible to the temperature variation or the flow of a liquid flowing through a pipe without requiring any well being employed in a thermocouple thermometer SOLUTION: A pair of ultrasonic transducers 3 are disposed, through waveguide rods 2 in opposition to the surface of a pipe 1 through which a liquid 4 flows The pair of ultrasonic transducers 3 are connected with a switch 5 to which in parallel with a receiving amplifier 7 and a signal transmitter 6 whose cycle is random are connected in parallel The receiving amplifier 7 is connected with an A/D converter 8 which is connected with an arithmetic unit 7 The arithmetic unit 7 has a correlative processing circuit 11 for mutually correlating and processing the output from the transmitter 6 and an ultrasonic echo signal, and a propagation time meaning circuit 12 for calculating the propagation time of an ultrasonic wave

Temperature measuring apparatus

PROBLEM TO BE SOLVED: To enable not only detection of flaw of the whole of a target region to be inspected but also measurement of the dimension of the whole of the target region to be inspected at a high speed with high accuracy, by electronic scanning different from flaw detection using a conventional TOFD method, an once-reflection method or an array type ultrasonic probe of pair constitution and requiring no mechanical scanning. SOLUTION: One or more of the vibrators of the array type ultrasonic probe 2, which has an integrated structure where a plurality of vibrators are continuously arranged, is selected as an ultrasonic transmitting vibrator. The other one or more of them is selected as an ultrasonic receiving vibrator for receiving the diffracted or reflected waves of the ultrasonic waves transmitted from the ultrasonic transmitting vibrator. The ultrasonic transmitting vibrator and the ultrasonic receiving vibrator are arranged at the positions on both sides of the surface of the array type ultrasonic probe, and in such a state, that the array-type ultrasonic probe is fixed, flaw detection is performed by the electronic scanning of the ultrasonic transmitting vibrator and the ultrasonic receiving vibrator corresponding thereto.

Ultrasonic flaw detection method and apparatus

PURPOSE:To detect a flaw of a stable picture quality with high accuracy, by using an array type probe on which plural vibrators for transmitting and receiving an ultrasonic wave have been provided in parallel, and controlling the timing for energizing and reception of the vibrator. CONSTITUTION:n-number of vibrators 1 provided in parallel are cupled with n- number of ultrasonic transmitters 2, are energized, and an ultrasonic wave is transmitted. A receiving signal detected by the vibrator is amplified, and thereafter, is inputted to an A/D converter 5, and is digitally converted. To the converter 5, a trigger signal is inputted from a receiving delay setting device 6. To transmitting and receiving delay setting devices 3, 6, the timing for sending out a trigger signal is set by a signal from a computer 7. By matching an output time point of the converter 5, the signal is stored in a memory 8, adding it by n-number each. A signal processor 9 selects a range of a beam route for processing the signal by the signal from the computer 7, sets a threshold level, and adds picture sweeping and luminance modulation to a picture display 10 by whether said range has exceeded the level or not, so that a flaw detecting waveform can be observed.

Electronic scanning type ultrasonic test equipment

Entered in a plant-maintenance apparatus are data on inspection, diagnosis, repair and operation histories for equipment that constitute a plant to be maintained. Failure-event tree breakdown is performed on failures to be expected for the equipment. Predicted is unreliability of at least one starting item in the failure-event tree breakdown. Unreliability of each item in the failure-event tree is calculated based on failure unreliability function. Unreliability and a cost of recovery from each failure event in the failure-event tree are multiplied and results of the multiplication are accumulated in accordance with the tree breakdown, thus obtaining a recovery cost. Preventive maintenance expenses are calculated for preventing failure events. Maintenance timing and technique are decided through comparison between the recovery cost and the preventive maintenance expenses. Instead of the failure-event tree breakdown, efficiency and operational-function decay event-tree breakdown may be performed on efficiency and operational-function decay factors to be expected for the equipment. Predicted in this case is unreliability of at least one starting item in the efficiency and operational-function decay event-tree breakdown. Unreliability of each item in the efficiency and operational-function decay-event tree breakdown is calculated based on failure unreliability function. Further calculated is efficiency and operational-function decay to be expected from the calculation based on the failure unreliability function. Unreliability and monetary loss due to efficiency and operational-function decay and a cost of recovery from the decay are multiplied and results of the multiplication are accumulated in accordance with the efficiency and operational-function decay-event tree breakdown. Preventive maintenance expenses are calculated for preventing the efficiency and operational-function decay.

Plant maintenance planification method and apparatus

PROBLEM TO BE SOLVED: To provide an overlay control method that enables introduction of next-generation lithography to semiconductor device manufacturing.SOLUTION: Overlay control according to an embodiment includes measuring misalignment between a first pattern of a first layer on a substrate and a second pattern of a second layer on the substrate by means of the second layer. Here, the first layer is lower than the second layer. The overlay control according to the embodiment further includes providing feedback information from the second layer to the first layer. Here, the feedback information includes the measured misalignment and tolerance related to the second layer. The tolerance indicates a degree of misalignment correctable by the second layer.

Satoshi Nagai

Papers

Temperature measuring apparatus

Ultrasonic flaw detection method and apparatus

Electronic scanning type ultrasonic test equipment

Plant maintenance planification method and apparatus

Overlay control method, semiconductor manufacturing method, and semiconductor manufacturing device