METHOD FOR INCREASING RELIABILITY IN MONITORING SYSTEMS
    5.
    发明申请
    METHOD FOR INCREASING RELIABILITY IN MONITORING SYSTEMS 有权
    增加监测系统可靠性的方法

    公开(公告)号:US20170079088A1

    公开(公告)日:2017-03-16

    申请号:US15265327

    申请日:2016-09-14

    Applicant: Axis AB

    Abstract: An apparatus and a method for controlling a heating device in a motorized camera directing arrangement including a motor device is disclosed. The method comprising measuring a voltage over the motor device, measuring a current conducted at least to the motor device, measuring a temperature relating to the motorized camera directing arrangement, controlling power distributed to the heating device based on the measured temperature and on the measured current, and feeding power to the heating device independent of the measured temperature and the measured current in the event that the measuring of the voltage over the motor device indicates a voltage level higher than a predetermined threshold value.

    Abstract translation: 公开了一种用于控制包括电动机装置的电动照相机引导装置中的加热装置的装置和方法。 该方法包括测量电动机装置上的电压,测量至少传导到电动机装置的电流,测量与电动照相机引导装置相关的温度,基于测量的温度控制分配给加热装置的功率和测量的电流 并且在电动机装置上的电压的测量指示高于预定阈值的电压电平的情况下,独立于所测量的温度和所测量的电流,向加热装置供电。

    Heater control device, and control method and control program for heater control device
    6.
    发明授权
    Heater control device, and control method and control program for heater control device 有权
    加热器控制装置,加热器控制装置的控制方法和控制程序

    公开(公告)号:US09351343B2

    公开(公告)日:2016-05-24

    申请号:US14002296

    申请日:2012-08-06

    CPC classification number: H05B1/0288 H05B1/0236 H05B2203/02

    Abstract: A heater control device includes a current calculating unit (20) which calculates a third value of current based on a first value of current flowing through a first PTC element of a first PTC heater which is in an energized state and a second value of current estimated to flow through a second PTC element of a second PTC heater which is to be newly put into an energized state next, and a switching control unit (21) which maintains a non-energized state of the second PTC element of the second PTC heater until it is determined that the third value of current calculated by the current calculating unit (20) is less than a predetermined maximum allowable value of current and puts the second PTC element of the second PTC heater into an energized state when the third value of current is less than the predetermined maximum allowable value of current.

    Abstract translation: 一种加热器控制装置,包括电流计算单元(20),该电流计算单元基于流过处于通电状态的第一PTC加热器的第一PTC元件的电流的第一值和估计的电流的第二值来计算第三电流值 流过第二PTC加热器的第二PTC元件,该第二PTC元件将要再次被置于通电状态;以及切换控制单元,其保持第二PTC加热器的第二PTC元件的非通电状态,直到 确定由当前计算单元(20)计算出的电流的第三值小于预定的电流最大容许值,并且当第三电流值为第二PTC电流时将第二PTC加热器的第二PTC元件置于通电状态 小于电流的预定最大允许值。

    Feedback control system and method for maintaining constant resistance operation of electrically heated elements
    7.
    发明授权
    Feedback control system and method for maintaining constant resistance operation of electrically heated elements 失效
    用于保持电加热元件的恒定电阻操作的反馈控制系统和方法

    公开(公告)号:US07655887B2

    公开(公告)日:2010-02-02

    申请号:US11440241

    申请日:2006-05-24

    CPC classification number: H05B1/0288

    Abstract: A system and method for controlling electrical heating of an element to maintain a constant electrical resistance, by adjusting electrical power supplied to such element according to an adaptive feedback control algorithm, in which all the parameters are (1) arbitrarily selected; (2) pre-determined by the physical properties of the controlled element; or (3) measured in real time. Unlike the conventional proportion-integral-derivative (PID) control mechanism, the system and method of the present invention do not require re-tuning of proportionality constants when used in connection with a different controlled element or under different operating conditions, and are therefore adaptive to changes in the controlled element and the operating conditions.

    Abstract translation: 一种用于通过根据自适应反馈控制算法调整提供给这些元件的电力来控制元件的电加热以保持恒定电阻的系统和方法,其中所有参数是(1)任意选择的; (2)由受控元素的物理性质预先确定的; 或(3)实时测量。 与常规比例积分微分(PID)控制机制不同,本发明的系统和方法在与不同的受控元件结合使用时或在不同的操作条件下不需要重新调整比例常数,因此适应性 以控制元件和操作条件的变化。

    Heating element control
    8.
    发明申请
    Heating element control 有权
    加热元件控制

    公开(公告)号:US20050205549A1

    公开(公告)日:2005-09-22

    申请号:US11083448

    申请日:2005-03-18

    Abstract: A controller adapted to control the temperature of a heating elements with a wide range of positive temperature coefficient of resistance, including very low values, using a sensor in line with the heating element. The controller is able to take account of non-constant mains power supplies and variation in the element resistance over time.

    Abstract translation: 一种控制器,其适于使用与加热元件一致的传感器来控制具有宽范围的正温度系数电阻的加热元件的温度,包括非常低的值。 控制器能够考虑非恒定电源电源和元件电阻随时间的变化。

    TEMPERATURE CONTROL APPARATUS AND TEMPERATURE CONTROL METHOD

    公开(公告)号:US20240206017A1

    公开(公告)日:2024-06-20

    申请号:US18539966

    申请日:2023-12-14

    CPC classification number: H05B1/0288

    Abstract: A temperature control apparatus includes a heater of which a temperature increases in response to receiving power, a power source supplying alternating current (AC) power to the heater, a temperature sensor sensing the temperature of the heater and outputting a measured temperature value, and a controller controlling the power supply to the heater so that the heater follows a set temperature profile, wherein the controller supplies the power to the heater for first one control period in a variable period consisting of a plurality number of times of control periods (on duty), and stops the power supply to the heater during remaining control periods until the variable period is finished (off duty).

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