Abstract: A read circuit for an image sensor includes: a first analog-to-digital conversion unit configured to perform successive approximation high-bit analog-to-digital conversion on collected pixel data to obtain high-bit conversion data and residual pixel data; and a second analog-to-digital conversion unit electrically connected to the first analog-to-digital conversion unit and configured to perform single-slope low-bit analog-to-digital conversion on the residual pixel data to obtain low-bit conversion data, wherein a sum of a first conversion accuracy of the first analog-to-digital conversion unit and a second conversion accuracy of the second analog-to-digital conversion unit is equal to a preset conversion accuracy for the pixel data. In accordance with the read circuit, a high image conversion frame rate of the pixel data can be achieved with lower power consumption and less circuit area, and the conversion cycle of the pixel data is effectively shortened.

Abstract: A pixel processing circuit, a reading method thereof and an image sensor are provided. The pixel processing circuit includes a pixel array comprising a plurality of pixel units arranged in a Bayer array, an Analog-to-Digital Converter (ADC) module comprising a plurality of analog-to-digital converters and a plurality of switch selection modules. The analog-to-digital converters are respectively located on the opposite first side and second side of the pixel array. The switch selection modules are set between the pixel array and the analog-to-digital converters to switch the connectivity between the pixel units and the analog-to-digital converters on the opposite sides of the pixel array so that signals of green pixel units are read by first analog-to-digital converters located at the first side of the pixel array, and signals of remaining color pixel units are read by second analog-to-digital converters that are located at the second side of the pixel array.

Abstract: A well cementing method is described for improving cementing quality by controlling the hydration heat of cement slurry. By controlling the degree and/or rate of hydration heat release from cement slurry, the method improves the hydration heat release during formation of cement with curing of cement slurry, improves the binding quality between the cement and the interfaces, and in turn improves the cementing quality at the open hole section and/or the overlap section. The cementing method improves cementing quality of oil and gas wells and reduces the risk of annular pressure.

Abstract: The present disclosure provides a vehicle positioning device for vehicle vision calibration, a positioning adjustment method, and a positioning adjustment system. The vehicle positioning device includes a base, a chassis, a translation mechanism and a rotation mechanism. A to-be-calibrated vehicle is placed onto the chassis, and the chassis is provided with a stopper. The translation mechanism is arranged between the chassis and the base, and configured to drive the chassis to move in an X-axis direction in a three-dimensional coordinate system relative to the base in accordance with a translation control instruction. The rotation mechanism is arranged between the chassis and the base, and configured to drive the chassis to rotate about a Z-axis in the three-dimensional coordinate system relative to the base in accordance with a rotation control instruction.

Abstract: A multiple parameter sensing leak detection system may include one or more multi-parameter sensing modules capable of simultaneously measuring downhole temperature, pressure, and acoustic signals. The temperature and pressure detectors may include quartz based sensing elements, and the acoustic detector may include piezoelectric based sensing elements. In one or more embodiments, a plurality of sensing modules may be carried on a caliper for allowing radial identification of leak location. In one or more embodiments, multiple calipers, each carrying a circumferential arrangement of sensing modules may be used to identify annular or inter-annular leakage beyond production tubing using triangulation techniques. A leak analysis method identifies if relative pressure and temperature variation amplitudes fall outside leak thresholds and if power spectral density from noise has anomalous frequency signatures.

Abstract: In a method of data processing executed in a gateway, a communication protocol matched with a target device is selected from a device driver database of the gateway; a connection with the target device is established according to the matched communication protocol; a sensing data of the target device is acquired; a data cleaning processing is performed on the acquired sensing data; and the processed data is shared to a third-party platform.

Abstract: A hermetically sealed electronic package may include a thermal panel having a panel interior surface and a panel exterior surface with electronic device(s) in thermal communication with the panel interior surface. An enclosure, isolating environmental communication from internal electronic devices and modules, may be coupled to the thermal panel, and the enclosure may have an enclosure interior surface and an enclosure exterior surface. A plurality of electrical feedthroughs may be coupled to the package enclosure for signal and data transmission, and the conducting pin(s) in every electrical feedthrough may be bonded by a hydrophobic sealing material for harsh environmental electrical signal, data and power transmission. The ratio of sealing length over sealing bead diameter in the electrical feedthrough subassembly may have a preferred value from 2 to 3; and the ratio of the sealing bead diameter over pin diameter in the electrical feedthrough subassembly may have a preferred value from 1.5 to 2.

Abstract: In a method of data processing executed in a gateway, a communication protocol matched with a target device is selected from a device driver database of the gateway; a connection with the target device is established according to the matched communication protocol; a sensing data of the target device is acquired; a data cleaning processing is performed on the acquired sensing data; and the processed data is shared to a third-party platform.

Abstract: In an approach to managing a load balancer cluster, one or more computer processors receive a packet comprising a source IP address of the packet. The one or more computer processors determine whether there is a record comprising the source IP address of the packet either in the load balancer or in the assistant. The one or more computer processors, responsive to determining there is no such record in the load balancer and there is the record in the assistant, obtain the record from the assistant, the record also comprising information of a first server in a server cluster and the first server being referred to as a destination server for any packet from the source IP address. The one or more computer processors send the packet to the first server.

Abstract: In an approach to managing a load balancer cluster, one or more computer processors receive a packet comprising a source IP address of the packet. The one or more computer processors determine whether there is a record comprising the source IP address of the packet either in the load balancer or in the assistant. The one or more computer processors, responsive to determining there is no such record in the load balancer and there is the record in the assistant, obtain the record from the assistant, the record also comprising information of a first server in a server cluster and the first server being referred to as a destination server for any packet from the source IP address. The one or more computer processors send the packet to the first server.

Abstract: A downhole formation fluid identification sensing module for measuring averaged gas molecular weight of wellbore formation fluid acquires simultaneous temperature, pressure, and density measurements. The sensing module includes two venturi-type gas sensors that both contain vibrating tubes. During operation, formation fluid flows through the vibrating tubes whereby resonant frequency measurements are acquired simultaneously with temperature and pressure measurements. Each measurement is then utilized to determine the gas molecular weight of the dry, wet or saturated formation fluid.

Abstract: A hermetically sealed electronic package may include a thermal panel having a panel interior surface and a panel exterior surface with electronic device(s) in thermal communication with the panel interior surface. An enclosure, isolating environmental communication from internal electronic devices and modules, may be coupled to the thermal panel, and the enclosure may have an enclosure interior surface and an enclosure exterior surface. A plurality of electrical feedthroughs may be coupled to the package enclosure for signal and data transmission, and the conducting pin(s) in every electrical feedthrough may be bonded by a hydrophobic sealing material for harsh environmental electrical signal, data and power transmission. The ratio of sealing length over sealing bead diameter in the electrical feedthrough subassembly may have a preferred value from 2 to 3; and the ratio of the sealing bead diameter over pin diameter in the electrical feedthrough subassembly may have a preferred value from 1.5 to 2.

Abstract: A hermetically sealed electronic package may include a thermal panel having a panel interior surface and a panel exterior surface with electronic device(s) in thermal communication with the panel interior surface. An enclosure, isolating environmental communication from internal electronic devices and modules, may be coupled to the thermal panel, and the enclosure may have an enclosure interior surface and an enclosure exterior surface. A plurality of electrical feedthroughs may be coupled to the package enclosure for signal and data transmission, and the conducting pin(s) in every electrical feedthrough may be bonded by a hydrophobic sealing material for harsh environmental electrical signal, data and power transmission. The ratio of sealing length over sealing bead diameter in the electrical feedthrough subassembly may have a preferred value from 2 to 3; and the ratio of the sealing bead diameter over pin diameter in the electrical feedthrough subassembly may have a preferred value from 1.5 to 2.

Abstract: Provided is a system for improving road safety of a vehicle. The system comprises a central management platform for managing a plurality of network cooperation engine (NCE) modules. Each NCE module manages a plurality of edge gateway devices (EGWs) which are each located in a respective defined geographical area of limited size. Each EGW communicates with multiple roadside units (RSUs) in its area and exchanges real-time and low latency information with said RSUs and with any vehicle on-board data processing units (ICGWs) in vehicles presently within its area. Each ICGW is adapted to be installable in a vehicle. The ICGW is configured to receive real-time data from one or more on-board vehicle modules. The ICGW is also configured to receive data from its EGW and the RSUs which are themselves configured to receive data from a plurality of sources located within said defined geographical area and to transmit said received data and/or data derived from said received data to said ICGW.

Abstract: A hermetically sealed electronic package may include a thermal panel having a panel interior surface and a panel exterior surface with electronic device(s) in thermal communication with the panel interior surface. An enclosure, isolating environmental communication from internal electronic devices and modules, may be coupled to the thermal panel, and the enclosure may have an enclosure interior surface and an enclosure exterior surface. A plurality of electrical feedthroughs may be coupled to the package enclosure for signal and data transmission, and the conducting pin(s) in every electrical feedthrough may be bonded by a hydrophobic sealing material for harsh environmental electrical signal, data and power transmission. The ratio of sealing length over sealing bead diameter in the electrical feedthrough subassembly may have a preferred value from 2 to 3; and the ratio of the sealing bead diameter over pin diameter in the electrical feedthrough subassembly may have a preferred value from 1.5 to 2.

Abstract: A load balancer system having multiple load balancer machines working in parallel. At any given time, one of the load balancer machines is assigned to act as the current distributor that distributes web client communications and/or requests to the other load balancer machines in the load balancer system. However, these web client communications and/or requests are directed to a distributor module on all of the active, parallel load balancer machines in the system (for example, by the expedient of a common virtual IP address for layer 3/4 communications) in case the currently active distributor fails and one of the other active load balancer machines suddenly needs to take on the distributor role. In this way, web client communications are not lost when the current distributor machine fails.

Abstract: A load balancer system having multiple load balancer machines working in parallel. At any given time, one of the load balancer machines is assigned to act as the current distributor that distributes web client communications and/or requests to the other load balancer machines in the load balancer system. However, these web client communications and/or requests are directed to a distributor module on all of the active, parallel load balancer machines in the system (for example, by the expedient of a common virtual IP address for layer 3/4 communications) in case the currently active distributor fails and one of the other active load balancer machines suddenly needs to take on the distributor role. In this way, web client communications are not lost when the current distributor machine fails.

Abstract: An approach is provided in which an information handling system receives, at a network virtualization edge (NVE), a set of Diffserv parameters comprising at least one classifier parameter, at least one meter parameter, at least one marker parameter, and at least one shaper/dropper parameter. The NVE performs a deep inspection on a plurality of data packets to classify the plurality of data packets at one or more classification levels. In turn, the NVE passes the set of Diffserv parameters and the one or more classification levels to underlay switch hardware.

Abstract: In distributed fiber-optic sensing within a borehole, the accuracy of correlating signal channels with depth along the borehole can be improved by taking the thermo-optic effect on the group velocity of light into account. In an example application, this allows, in turn, to more accurately localize acoustic sources via distributed acoustic sensing. Additional embodiments are disclosed.

Abstract: A hydrophobic dielectric sealing material is provided that is especially suitable for use in extreme environments such as for enabling downhole electrical feedthrough integrated logging tools reliable operation, especially, in a water or water-mud filled wellbore as first scenario or in moisture-rich oil-mud filled wellbores. In some embodiments, a hydrophobic dielectric sealing material may include: H3BO3 10-60 mol %; Bi2O3 10-50 mol %; MO 10-50 mol %; SiO2 0-15 mol %; and optionally one or more rare earth oxides 0-5 mol %. A method for making hydrophobic sealing material includes selecting water insoluble raw materials, form tetragonal phase dominated phase, and enlarge band-gap with wide-band-gap material. The morphology of the sealing material is preferably a tetrahedral phase dominated covalent bond network for obtaining high electrical insulation resistance, dielectric strength and hydrophobicity, and high mechanical strength in against downhole 30,000 PSI/300° C. water-based hostile environments.