Augmented Reality System for Power Restoration Crews
The technical approach to construct an application with each element of the conceptual architecture is to assemble a three-server back-end similar to extreme weather/infrastructure forecast systems of AA’s licensed Visualizing Energy Resources Dynamically on Earth (VERDE) system (www.almeriaanalytics.com) with an imbedded Geoserver for spatial tracking. The manual datastore is integrated with a semi-supervised information extraction system.The AR capability that can present the following: 1. Manuals and instructions selected from large datasets using Watson-like cognitive retrieval technology; 2. Combine the tactical information from repair crews with spatially-based forecasts of cascading outages for effective triage; 3. Present information within three-second response times without causing cognitive overload for the users – technicians and Subject Matter Experts alike. Longer response lags reduce the usability of the system for interactive operational response. 4. Integrate the ground truth from on-scene personnel into response plans and adjust resource deployment as new information is received.
Low temperature heterogenous nanobonding: high throughput direct wafer scale 3D integration without ultra-high vacuum
Today wafer bonding is used for 3D integration of opto-electronic devices like lasers or photo-detectors, thick silicon dark matter detector, bio-sensors, and tandem solar cells manufacturing. Low temperature direct wafer bonding for dissimilar materials is needed to fabricating new functional optical devices and for overcoming difficulties of lattice mismatches and thermal coefficient of dissimilar materials. Several techniques are reported that achieve a high bond energy at low temperature such as surface activated bonding (SAB) and ultra-high vacuum (UHV) bonding. However, both bonding techniques shows shortfall in manufacturing of high throughput bonding. SAB shows high defect and thick inter-phase layer between wafers resulting non-ohmic nature of bonding. UHV bonding, a sophisticated system with a long duration to reach vacuum levels low enough (10 e-8) to obtain absorbates-free bonding surfaces, is impractical. We develop a novel bonding technology to overcome challenges for heterogenous wafer bonding by a) enabling bonding without UHV hence less time required for bonding cycle and faster throughput; b) processing at short duration of low temperature <220C; c) practically no mechanical forces needed while bonding instead a patented technology of inter-atomic nanobonding and d) finally bonding large wafers for truly commercialization of this technology for III-V materials integration.
Hong Kong, Kowloong
Smart Battery Diagnostic Technology
The traditional full discharge approach until a battery’s terminal voltage has reached the cutoff value is direct and accurate for determining state-of-charge (SOC) and state-of-health (SOH) but the entire process is time-intensive (typically, a few hours), and causes energy wastage and impact on battery’s life cycle. It is more suitable for conducting offline measurements. This technology makes use of an energy-recycling technology to charge and discharge battery under test to extract intrinsic parameters with a machine learning technology to determine SOC and SOH. By controlling the power flow between the battery and a supercapacitor through a bidirectional DC-DC converter, the battery current profile and operating mode are controlled. Ideally, it is non-dissipative and allows testing large-signal battery behaviors over a long period of time. More importantly, instead of acquiring the discharging behaviors of batteries, as in traditional approach, this technology can conduct online measurements of both charging and discharging behaviors to characterize real battery performance and condition. The whole process takes three minutes only, giving a good balance between accuracy and computational speed, suitable for life expectancy estimation.
High Speed High Voltage Driver
This technology is composed of multiple transistors connected in series, each turned on and off simultaneously by identical transistor gate-driver circuits. These circuits can drive the individual transistor gates on and off in less than 2 nanoseconds at repetition rates up to 100 MHz, comprising design part 1. A separate design part 2 is a photonic trigger system that comprises a laser, electro-optical modulator, optical splitters, and opto-electronic receivers interconnected with fibers that precisely synchronizes the turn-on and turn-off each of the series-connected transistors. The combination of parts 1 and 2 comprise a high-speed driver capable of producing arbitrary pulse patterns that drive, but not exclusively, particle beam deflectors.
Sensor-Based Technology for Home Security in Resource Poor Settings
M-Kulinda (‘Kulinda’ is Swahili word for security) is a sensor-based home security system for home protection in rural Kenya where the theft of personal property is widespread. M-Kulinda’s design was influenced by formative research I conducted in 2016 that suggested that burglary is a problem in rural Kenya. The solar powered system detects movements on peoples’ compounds and sends household members an alert SMS/text message. Thus taking advantage of widespread mobile phones ownership in the region (nearly 85% of rural Kenyans have mobile phones). Based on pilot evaluation of my prototype with 20 households in rural Kenya, I learned that the system is useful for detecting home intruders and most participants used the system for home surveillance. I conclude that M-Kulinda has the potential help to reduce theft of personal property in rural Kenyan households. More about the design of the system and its impact can be found on this link: http://www.hopechidziwisano.com/pub/m-kulinda.pdf.
In Transit Visibility (ITV)/Total Asset Visibility (TAV) Solution for Cold Chain Logistics
Myconi Technologies has developed a proprietary wireless, ad hoc, peer-to-peer, self-healing mesh network protocol that operates on internationally license-free frequencies (IEEE 802.15.4 ISM Standard). Myconi has incorporated this wireless technology with multiple environmental and material condition sensors. This secure Technology Readiness Level 8 (TRL 8) system is comprised of 5 different wireless monitoring devices and 3 wireless gateway configurations that includes a secure internet-based data management platform. Implementation of the patented Myconi monitoring solution allows users to wirelessly configure threshold parameters for temperature, humidity, barometric pressure, light, harsh handling (shock) and tilt angle of products or equipment transported and/or stored in boxes, pallets or containers. The mesh network communication architecture is robust, highly scalable with built-in redundancy and ensures secure connectivity (256 bit AES encryption). While there is no GPS in the sensor tags, location is derived from the GPS within the gateway devices and Inertial Navigation Algorithms (patented). Myconi capability far exceeds other cargo tracking/data logging technologies with the self-healing, secure, mobile ad hoc network (MANET) mesh networking capability and the extended battery life. Myconi has invested $1.4m in research and development to productize this capability; has been awarded 7 patents for this system.
An intelligent technological framework with mobile robots for agricultural activities
This technological framework pertains to use mobile sensors and robotic platforms to facilitate everyday agricultural activities. With the framework,farming practitioners are virtually endorsed with full control of quantity,quality,and consistency of their produce. Apart from ordinary automation systems,the framework provides around-the-clock supervisions to farms of different scales with minimum expenses on infrastructure.The mobile robotic platforms collectively gather information from the environment,which is then aggregated and analyzed to generate profiles of the farm on regular basis. Based on the up-to-date profile,mobile robotic platforms dynamically allocate themselves to provide treatments to regions that require extra attentions. With decentralized localization modules,they are capable of performing indoor and outdoor navigation in autonomous fashions. Via exchanging information with neighboring peer platforms within their proximities,robotic platforms can adjust their behaviors adaptively to cope with changing environment and system parameters. Control of the platforms does not rely on a centralized unit, which provides the framework with extra robustness to single-point-failures. The complete history of every single food product under the monitoring of framework can be accessed by consumers in a transparent manner,which provide a silver bullet to the surge of public concerns on food safety in recent years.
Mobile Phone-Based Fluorescence Multi-Well Plate Reader
Researchers led by Professor Aydogan Ozcan have developed a field-portable mobile phone based-readout platform that images a field of view of ~18 cm2 with no mechanical scanning required. The device is broadly compatible with any fluorescence-based assay that can be run in a 96-well microplate format, making it especially valuable for point-of-care (POC) and resource-limited settings. The compact and lightweight reader does not require any bulky optical or mechanical components, as the large field of view negates the need for mechanical scanning. Instead, a fluorescence microplate reader is integrated onto the optical camera interface of a mobile phone. A fiber optic bundle connects the 96-well plate to the plate reader and utilizes the mobile phone as the readout platform. An inexpensive 3D printed opto-mechanical interface houses a small array of LEDs used as the light source. The entire platform weighs <600g and costs under $100.
Environmental and Point-of-Care Testing in the Palm of Your Hand
This technology portfolio uses inert polymers for the consistent packaging of an electrode layer, microbial layer, and microfluidic inlet and outlet ports. Additionally, this technology seeks to overcome standardization problems by introducing a method to mass produce interconnecting microfluidic chips. The design incorporates standard size tubing and an injection molding process that readily allows for leakproof interlocking between the chips for reliable and cost-effective production. One example device is a disposable microsensor for continuous monitoring of free chlorine in water. For the chlorine sensor, gold, gold and silver/silver chloride comprise working, counter, and reference electrodes respectively. A transparent Cyclic Olefin Copolymer (COC) substrate is used for sensor fabrication by standard lithographic procedures. Another possible device is a disposable microbial sensor for rapid Biochemical Oxygen Demand (BOD) measurement. Here, a microbial strain is immobilized over one pair of sensor electrodes while the other is retained as a reference. The sensor layer is attached to an injection molded passive microfluidic channel on top. This sensing circuitry is further connected to the display monitor showing the output data.