Abstract: A robot cell, having a cell floor defining an array of nodes corresponding with a predetermined two-dimensional coordinate system and defining a volume for receiving a workpiece W therein and accessible by a human operator, is described. The robot cell comprises: a set of robots, including a first robot, having respective bases, end effectors and working envelopes and defining respective three-dimensional coordinate systems, located according to the array of nodes; a set of detectors, including a first detector, configured to detect respective locations and/or bearings of the set of robots using a set of targets disposed on and/or in the cell floor; a safety system, configured to alert the human operator; and a controller, communicatively coupled to the set of robots and to the set of detectors, configured to control movement of the set of robots using the detected respective locations and/or bearings of the set of robots.

Abstract: A shock absorbing apparatus that includes a baseplate adapted to be mounted on a platform, a flexure member that operably engages with the baseplate, and a mounting plate that operably engages with the flexure member. The mounting plate is free from direct engagement with the baseplate and is moveable between a neutral position and a translated position with respect to the baseplate. The mounting plate is also adapted to hold a device. The flexure member is adapted to absorb shock forces caused by a ballistic shock event or a projectile motion event in proximity to or applied on the platform.

Abstract: A method is provided for producing a component for a warhead, wherein the method involves the steps: i.) an inner shell is arranged on a tool, ii.) preshaped projectiles are arranged on the inner shell, iii.) powder is arranged to enclose the preshaped projectiles, iv.) the powder is pressed such that the powder, the preshaped projectiles, and the inner shell are joined together, v.) the tool is removed from the component formed from the powder, the preshaped projectiles, and the inner shell. A warhead and a projectile are also provided.

Abstract: Techniques are provided for x-ray image data monitoring and signaling for patient safety. A methodology implementing the techniques according to an embodiment includes integrating energy associated with a received x-ray pulse at an array of pixels. The method also includes multiplexing a readout of the integrated energy from the array of pixels, as analog signals, into channels, and performing analog to digital conversion of the analog signals of the channels into digital signals. The method further includes generating an error indicator in response to determining that a calculated mean of the digital signals is either greater than an upper threshold value associated with saturation or less than a lower threshold value associated with underexposure. The method further includes transmitting the error indicator over a Universal Serial Bus, to an imaging system, to terminate transmission of further x-ray pulses.

Abstract: A Global Positioning System (GPS) digital antenna controller is provided, comprising antenna electronics, a code generator, and an interface. The antenna electronics can be configured to receive a GPS signal. The code generator can be configured to generate a pilot code signal that is synchronized to the DAE local clock reference. The interface can be configured to send the GPS signal and the code signal to a GPS receiver. A system may comprise the GPS digital antenna controller and GPS receiver. The GPS receiver can comprise a second code generator and a processor configured to resolve a timing difference based on the pilot code signal and a second code signal of the second code generator. The controller may be remote from the receiver. The interface may comprise an asynchronous data interface (e.g., Ethernet, USB, Infiniband, or Firewire). To resolve the timing difference may involve GPS code and carrier tracking.

Abstract: A high voltage measurement port and a circuit contact wire assembly for vehicle high-voltage power decommissioning. The high voltage measurement port includes four externally accessible pins for obtaining an electrical characteristic measurement of a connected circuit. For redundancy, the assembly includes a resistor between a first measurement port pin and a first positive DC busbar at a first location, a resistor between a second pin and the first DC busbar at a second location different from the first location, a resistor between a third pin and a second negative DC busbar at a first location, and a resistor between a fourth pin and the second DC busbar at a second location different from the first location. Via the high voltage measurement port, a multi-meter can verify each resistance connection between the positive pins and then again between negative pins before a differential voltage measurement is made between positive and negative.

Abstract: The invention relates to a system and method for detecting anomalous system behaviour. The system comprises a plurality of sensors and a trained autoencoder. The method of training comprises: obtaining training data and test data comprising multiple data records for at least one engineering asset which corresponds to the engineering asset whose behaviour is to be classified, wherein the data records comprise a plurality of sensor readings for the engineering asset; fitting the autoencoder to the obtained training data; running the test data through the encoder of the fitted autoencoder to obtain encodings of the test data; generating a plurality of data sets from the obtained encodings, wherein the generated plurality of data sets include under-represented data sets; cloning the fitted autoencoder to create a cloned autoencoder for each of the generated plurality of data sets; and aggregating the cloned autoencoders to form an over-arching autoencoder.

Abstract: Methods and systems for arc detection are described. A controller can receive a bus voltage of a direct current (DC) bus connected to an energy source. The controller can determine whether the received bus voltage is less than a bus voltage threshold. The controller can, in response to determining the received bus voltage being less than the bus voltage threshold, determine an occurrence of an arc event in an apparatus that includes the DC bus and the energy source.

Abstract: A common-mode current sensor system and method for a traction inverter of an electric hybrid vehicle. The system and method detects/reduces excess common-mode currents that can be caused by the presence of alternating current (AC)-chassis type short circuit faults at the outputs of an inverter used for driving a two or more-phased load. In an embodiment, the system detects the presence of an AC-chassis fault of any varying strength, e.g., weak, medium, hard, in respective parallel paths. The system and method can isolate a particular AC-chassis type fault to a particular phase leg of the inverter thereby obviating a need of having to shut-down and/or re-program each phase leg of the whole power supply and vehicle operation. Rather, upon detecting a chassis short, a fault signal is asserted to control shutting down of one or more inverter switches without having to shut-down the vehicle or negatively impact the vehicle status.

Abstract: A neuromorphic focal plane array ROIC device for temporal and spatial synchronous and asynchronous image event processing comprising a plurality of pixels, each pixel comprising an input section comprising a Sample and Hold (SH) component; a low offset buffer/comparator section comprising a Switched Capacitor Filter (SCF); and a digital event output section comprising an analog pixel bus whereby temporal and spatial image data are synchronously and asynchronously processed.

Abstract: Suspension system structures and methods are provided. A system as disclosed includes a supported object that is mounted to a post by a first two axis gimbal. The system also includes a reaction mass that is mounted to the post by a second two axis gimbal. The supported object and the reaction mass are connected to one another by a drive assembly. The drive assembly transfers a rotation of the reaction mass about either of the two axes in a first direction to a rotation of the supported object about a parallel axis in an opposite direction.

Abstract: There is provided a projectile, a system and a related method of operation of a projectile comprising: a front ogive section; an aft section; and a control module; wherein the front ogive section is rotatably connected to the aft section by a coupling device, the front ogive section further comprising an asymmetric surface such that the asymmetric surface exerts an imbalance upon the projectile, where in use, the angular rotation of the front ogive section can be selectively adjusted relative to the aft section by commands from the control module to the coupling device influencing a helical trajectory of the projectile in flight thereby causing a change in direction thereby steering the projectile towards a target.

Abstract: The disclosed method enables efficient registration and correction of random vertical and horizontal offsets of a plurality of images of a feature to enable combination thereof with maximum noise suppression. The method includes obtaining image cross correlations and estimating correlation peaks. If a correlation peak cannot be uniquely determined for a given correlation, all candidates are retained. An improved robust weighted regression is applied thereto to obtain estimates of the image shifts. Dimensional symmetry is exploited to remove redundancy from the weighted normal equation, and computational requirements are further reduced by analytically determining the coefficients matrix and the inhomogeneous matrix, thereby circumventing conventional computations. Solution of the resulting consistent, full rank, linear system requires only matrix inversion. For N images, the present method thereby increases computation speed and reduces storage by approximately N2.

Abstract: Techniques are provided for batch processing signal acquisition. A batch processing signal acquisition system implementing the techniques according to an embodiment includes a recording controller configured to store samples of an input signal to a memory. The input signal is received at a first sampling rate. The system also includes a playback controller configured to read samples from the memory for playback of the input signal at a second sampling rate. The system further includes an acquisition processor configured to detect and locate, in time and frequency, a signal of interest in the playback of the input signal. The system further includes a signal processor configured to process the signal of interest in the playback of the input signal based on the detection and location provided by the acquisition processor.

Abstract: Examples include column readout amplifiers and image sensors including same. In one example, a column readout amplifier includes a signal amplifier having an amplifier output and first and second amplifier inputs, a filter capacitor having first and second terminals, the second terminal connected to a ground terminal, a buffer amplifier having a buffer amplifier input and a buffer amplifier output, a switching network configured to switchably connect the amplifier output to the buffer amplifier input and the buffer amplifier output to the first terminal of the filter capacitor during a first time period, and to switchably connect the amplifier output directly to the first terminal of the filter capacitor during a second time period, and a low-pass filter connected in a feedback path of the signal amplifier between the amplifier output and the first amplifier input, the low-pass filter including a series resistor and a capacitor.

Abstract: Techniques to provide compression and/or decompression. A method includes obtaining a first set of control points specifying a first set of compression ratios corresponding to respective first regions of a compression domain, and minimum and maximum uncompressed values within the compression domain. The method can further include scaling the first set of control points based on the minimum and maximum uncompressed values to obtain a scaled set of control points, wherein a first scaled control point is located at the minimum uncompressed value, and a last scaled control point is located at the maximum uncompressed value. The method can further include adjusting at least one scaled control point such that a first slope does not exceed 1. The method can further include compressing or decompressing between the compression domain and a range of compressed values, wherein a respective compression ratio corresponds to a respective slope of the set of slopes.

Abstract: A system to determine a temperature corrected pressure of a medium in a pressure transducer is disclosed. The system comprises a first circuitry to obtain a first value related to a vibration frequency of the vibration of a pressure sensitive vibration member; a second circuity to obtain a second value related to a vibration amplitude of the vibration of the vibration member; and a third circuity to use the first value and the second value to determine the temperature corrected pressure of the medium based on a predetermined relationship between the vibration frequency and the vibration amplitude.

Abstract: Protection system and method for preventing damage to components in an inverter module caused by a permanent magnet (PM) electric machine being in an uncontrolled state is provided. The system has a back-up power supply to supply power to voltage rails for gate driver circuitry which controls at least one pair of semiconductor switches. At least one pair of semiconductor switches is electrically connected to the PM electric machine. The back-up power supply receives as input, a differential voltage of a DC bus. The protection system also has a control module electrically connected to the second power supply and receive power therefrom. The control module is configured to receive a sensed voltage of the DC bus and cause the gate driver circuitry to short respective phases when a differential voltage of the DC bus is greater than or equal to a first threshold and a condition is satisfied.

Abstract: Techniques are provided for an Identification Friend or Foe (IFF) transponder. A system implementing the techniques according to an embodiment includes an antenna array configured to operate in an omnidirectional mode and a steered directional mode. The system also includes a receiver configured to receive signals provided through the antenna array while operating in the omnidirectional mode and a detector configured to detect an IFF interrogation message in the received signals. The system further includes an angle of arrival (AOA) estimator configured to operate the antenna array in the steered directional mode to estimate an AOA of the IFF interrogation message. The system further includes a transmitter configured to operate the antenna array in the steered directional mode to transmit an IFF response message in the estimated AOA direction. The transmit power of the IFF response message may be based on, for example, the steering gain of the antenna array.

Abstract: A system and method is provided to characterize optical properties (Scattering, attenuation, de-polarization) of a light-transmitting medium and local environment, by determining a scattering rate of light through a medium, wherein determining the scattering rate of light through the medium is accomplished by utilizing polarized light transmitted from an optical source. The system and method performs a function based on the characterized optical properties of the medium, wherein the function is one of, for example: detection of objects embedded in the medium, object ranging through the medium, or deblurring of images acquired through the medium.