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    SEARCHLIGHT AUTO-LAND SYSTEM
    12.
    发明申请
    SEARCHLIGHT AUTO-LAND SYSTEM 审中-公开

    公开(公告)号：US20200172264A1

    公开(公告)日：2020-06-04

    申请号：US16208930

    申请日：2018-12-04

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Shouvik Das ,  Sunit Kumar Saxena ,  Rafeek Sainudeen ,  Naman Rawal

    IPC: B64D47/02 ,  F21S8/00 ,  B64D45/04

    Abstract: Systems and methods for an auto-land system for a rotorcraft are provided. The system includes, a search light (SL) assembly configured to receive user input directing the SL to a point of interest (POI) and determine an actual SL orientation and an actual SL range to the POI; and, a searchlight controller operationally coupled to the search light assembly, and configured to: responsive to receiving a command to auto-land at the POI, begin (i) generating a desired trajectory from the rotorcraft actual orientation and rotorcraft actual range to the POI; (ii) generating guidance commands for navigating the rotorcraft in accordance with the desired trajectory; (iii) monitoring an actual SL range and an actual SL orientation; and (iv) generating controlling commands for the searchlight assembly in accordance with the coordinates of the POI.

    Single stage power factor corrected LED driver circuit
    14.
    发明授权
    Single stage power factor corrected LED driver circuit 有权

    公开(公告)号：US09763291B2

    公开(公告)日：2017-09-12

    申请号：US14830026

    申请日：2015-08-19

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Pandu Ranga Rao Somarowthu ,  Sunit Kumar Saxena ,  Deepak Bhimrao Mahajan

    IPC: H05B33/08 ,  H02M1/42 ,  H02M3/158 ,  H02M7/06

    CPC classification number: H05B33/0815 ,  H02M1/4208 ,  H02M1/4225 ,  H02M7/06 ,  H05B33/083 ,  Y02B20/346 ,  Y02B70/126

    Abstract: A single-stage power factor corrected light emitting diode (LED) driver circuit having a circuit input node, a circuit output node, and a circuit common node includes a first inductor, a second inductor, a coupling capacitor, a controllable switch, and an LED string. The first inductor is electrically connected in series between the circuit input node and the coupling capacitor, the second inductor is electrically connected in series between the circuit output node and the circuit common node, the coupling capacitor is electrically connected in series between the first inductor and the circuit output node, the controllable switch is electrically connected in series between a first internal circuit node and the circuit common node, the first internal circuit node located between the first inductor and the coupling capacitor, and the LED string is electrically connected in parallel with only the second inductor.

    System and method for controlling a UVC based aircraft sanitization system
    16.
    发明授权
    System and method for controlling a UVC based aircraft sanitization system 有权

    公开(公告)号：US11904060B2

    公开(公告)日：2024-02-20

    申请号：US17015747

    申请日：2020-09-09

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Sunit Kumar Saxena

    IPC: A61L2/10 ,  A61L2/24 ,  B64F5/30 ,  A61L2/26

    CPC classification number: A61L2/10 ,  A61L2/24 ,  A61L2/26 ,  B64F5/30 ,  A61L2202/11 ,  A61L2202/14 ,  A61L2202/16 ,  A61L2202/25

    Abstract: A control system in a UVC-based aircraft sanitization system for controlling the UVC-based aircraft sanitization system to maintain a desired UVC (ultraviolet C) radiation level at a target surface in an aircraft under varying operating conditions is disclosed. The control system includes a controller configured to: receive measured radiation feedback from a radiation measurement device (e.g., dosimeter) on the target surface that identifies a radiation level that is applied at the target surface by the UVC-based aircraft sanitization system; and generate a UVC source control command for UVC sources in the UVC-based aircraft sanitization system. based on the received measured radiation feedback, to control the UVC sources to increase or decrease radiation level output (e.g., identify the amount of increase or decrease from the UVC sources) to generate sufficient radiation to achieve the desired radiation level at the target surface.

    METHODS AND SYSTEM FOR DIRECT SLEWING A LIGHT BEAM AXIS
    17.
    发明公开
    METHODS AND SYSTEM FOR DIRECT SLEWING A LIGHT BEAM AXIS 审中-公开

    公开(公告)号：US20230278723A1

    公开(公告)日：2023-09-07

    申请号：US17659299

    申请日：2022-04-14

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Shouvik Das ,  Sunit Kumar Saxena ,  Abhijit K ,  Kartik Brahmbhatt ,  Richard Policy ,  Craig Giffen

    IPC: B64D47/04 ,  F21V21/15

    CPC classification number: B64D47/04 ,  F21V21/15

    Abstract: Methods and systems are provided for slewing a light beam axis directly between points on the ground. One method involves determining a first position associated with a beam axis of a lighting arrangement in a Cartesian reference frame based on an initial orientation of the lighting arrangement in a spherical reference frame, determining an adjustment for the lighting arrangement in the Cartesian reference frame in response to a user input, determining an updated position for the beam axis in the Cartesian reference frame based on the first position and the adjustment in the Cartesian reference frame, transforming the updated position for the beam axis in the Cartesian reference frame to an updated orientation of the lighting arrangement in the spherical reference frame, and concurrently commanding actuators associated with the lighting arrangement to slew the lighting arrangement from the initial orientation to the updated orientation in the spherical reference frame.

    APPARATUS AND METHOD FOR ULTRAVIOLET (UV) LIGHT SANITIZATION OF AN AIRCRAFT
    18.
    发明申请
    APPARATUS AND METHOD FOR ULTRAVIOLET (UV) LIGHT SANITIZATION OF AN AIRCRAFT 有权

    公开(公告)号：US20220031897A1

    公开(公告)日：2022-02-03

    申请号：US17017043

    申请日：2020-09-10

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Sunit Kumar Saxena ,  Stephen F. Yates

    IPC: A61L2/26 ,  A61L2/10 ,  B64F5/30 ,  B64D45/00

    Abstract: Mobile apparatus and methods for ultraviolet (UV) light sanitization of an aircraft. The mobile apparatus generally comprises a mobile platform, such as a trolley, that has integrated therewith circuitry and devices that control and actuate ultra-violet C-spectrum (UV-C) light sources that are mechanically coupled to the trolley. The proposed mobile apparatus includes a controller that receives input from an operator and, optionally, from dosimeters mounted on the proposed system and/or within the aircraft. Based on the inputs received, the controller provides guidance to the operator in the form of alerts and messages, as well as automatically adjusting components of the mobile apparatus to adapt itself to a specific aircraft type.

    NON-ISOLATED POWER SUPPLY OUTPUT CHASSIS GROUND FAULT DETECTION AND PROTECTION SYSTEM
    20.
    发明申请
    NON-ISOLATED POWER SUPPLY OUTPUT CHASSIS GROUND FAULT DETECTION AND PROTECTION SYSTEM 有权
    非隔离电源输出接地故障检测和保护系统

    公开(公告)号：US20160118784A1

    公开(公告)日：2016-04-28

    申请号：US14521688

    申请日：2014-10-23

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Sunit Kumar Saxena ,  Deepak Bhimrao Mahajan ,  Tarak Saha ,  Anand Vivek Ravi

    IPC: H02H3/08 ,  H02M3/04

    CPC classification number: H02H3/08 ,  H02M1/32 ,  H02M3/04 ,  H02M3/1582

    Abstract: A non-isolated power supply is configured to receive an input voltage and supply an output voltage, and includes a supply line, a return line, a first semiconductor switch coupled in series in the supply line, and a second semiconductor switch coupled in series in the return line. The first and second semiconductor switches are each configured to operate in an ON state and an OFF state. The differential current sensor is configured to sense differential current between the supply line and the return line. The fault detection logic is coupled to the differential current sensor, the first semiconductor switch, and the second semiconductor switch, and is configured to detect when the differential current exceeds a predetermined current magnitude, and command the first and second semiconductor switches to operate in the OFF state upon detecting that the differential current exceeds the predetermined current magnitude.

    Abstract translation: 非隔离电源被配置为接收输入电压并提供输出电压，并且包括供应线，返回线，串联耦合在供应线中的第一半导体开关，以及串联耦合的第二半导体开关 返回线。 第一和第二半导体开关各自被配置为在ON状态和OFF状态下操作。 差分电流传感器被配置为感测电源线和返回线之间的差分电流。 故障检测逻辑耦合到差动电流传感器，第一半导体开关和第二半导体开关，并且被配置为检测差分电流何时超过预定电流大小，并且命令第一和第二半导体开关在 在检测到差动电流超过预定电流大小时，断开状态。

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