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公开(公告)号：US06229449B1
公开(公告)日：2001-05-08
申请号：US09301916
申请日：1999-04-29
IPC分类号： G08B1710
摘要： A detector apparatus is disclosed for emitting a warning alarm signal in response to the presence of a hazardous condition within at least one room of a building having a plurality of rooms. The apparatus includes a plurality of hazardous condition detectors arranged such that at least one detector is disposed within each of the rooms. Each of the detectors includes a detecting device for detecting the presence of the hazardous condition and a micro controller electrically connected to the detecting device and powered by an electrical power source. An alarm is electrically connected to the controller such that when the detecting device detects the presence of the hazardous condition, the controller emits an electrical signal. An analog to digital converter device is electrically connected to the controller for converting the electrical signal into a digital signal so that when the hazardous condition is detected, the converter transmits the digital signal. A receiver is provided for receiving the digital signal. The receiver includes an antenna for receiving the digital signal and a crystal for detecting the digital signal and for using the detected digital signal to activate the alarm. The arrangement is such that the alarm emits the warning alarm signal. Each of the detectors of the plurality of detectors is disposed remote relative to each other within each of the rooms of the building such that when a hazardous condition is detected by one of the detectors, all of the detectors emit warning alarm signals for warning occupants within any of the rooms of a potential hazard within at least one of the rooms.
摘要翻译： 公开了一种用于响应于在具有多个房间的建筑物的至少一个房间内存在危险状况来发出警告报警信号的检测器装置。 该装置包括多个危险状态检测器，其布置成使得至少一个检测器设置在每个房间内。 每个检测器包括用于检测危险状况的检测装置和与检测装置电连接并由电源供电的微控制器。 警报器电连接到控制器，使得当检测装置检测到存在危险状况时，控制器发出电信号。 模数转换器装置电连接到控制器，用于将电信号转换为数字信号，使得当检测到危险状况时，转换器发送数字信号。 提供接收器以接收数字信号。 接收机包括用于接收数字信号的天线和用于检测数字信号的晶体，以及使用检测到的数字信号激活报警。 这种布置使得报警器发出警告报警信号。 多个检测器的每个检测器在建筑物的每个房间内相对于彼此远离设置，使得当由检测器之一检测到危险状况时，所有检测器发出用于警告占用者内的警告信号 在至少一个房间内的潜在危险的任何房间。
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公开(公告)号：US5269311A
公开(公告)日：1993-12-14
申请号：US881726
申请日：1992-05-11
IPC分类号： A61B5/0215 , G01L1/22 , G01L27/00 , A61B5/00
CPC分类号： G01L1/2281 , A61B5/0215 , G01L27/002
摘要： Disclosed is a method of compensating any of a plurality of different pressure transducers for their characteristic pressure sensitivity, zero pressure offset, and self-heating error. The method comprises selecting a gain resistor that adjusts the gain of an output signal of the pressure transducer in use so that the pressure transducer appears as an ideal pressure transducer to a pressure monitor. The self-heating error is compensated by measuring an initial bridge voltage that drives the transducer and an initial output signal of the pressure transducer when the transducer is first energized. After a period of time a second bridge voltage and a second output signal are determined. The self-heating error is determined as a function of the difference between the initial and second values. The zero pressure offset is compensated by determining the output signal of the pressure transducer at zero gauge pressure after the pressure has been compensated for the self-heating error.
摘要翻译： 公开了一种补偿多个不同压力传感器的特性压力敏感性，零压力偏移和自发热误差的方法。 该方法包括选择增益电阻器，其调节在使用中的压力传感器的输出信号的增益，使得压力传感器作为理想的压力传感器出现到压力监视器。 当传感器首次通电时，通过测量驱动换能器的初始电桥电压和压力传感器的初始输出信号来补偿自加热误差。 一段时间后，确定第二桥电压和第二输出信号。 自发热误差被确定为初始值和第二值之间的差值的函数。 零压力补偿通过在压力已经补偿自加热误差之后确定压力传感器在零表压下的输出信号来补偿。
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公开(公告)号：US06259365B1
公开(公告)日：2001-07-10
申请号：US09506345
申请日：2000-02-17
申请人： James Hagar , Richard A. Kirchner
发明人： James Hagar , Richard A. Kirchner
IPC分类号： G08B1318
CPC分类号： G08B21/086 , G08B13/184
摘要： A laser security fence apparatus is disclosed for providing a warning signal in response to an intrusion by an intruder of a restricted area. The apparatus includes a laser generator for generating a laser beam and a first mirror aligned with the laser beam for reflecting the beam. A second mirror is aligned with the first mirror for reflecting the beam reflected by the first mirror and a collector is aligned with the second mirror for collecting the beam reflected by the second mirror. A microprocessor is associated with the collector and the generator for sensing when the beam is broken by the intruder so that the beam is not received by the collector. An alarm is connected to the microprocessor for actuation by the microprocessor when the microprocessor senses that the beam is broken so that the alarm provides the warning signal.
摘要翻译： 公开了一种用于响应入侵者入侵受限区域而提供警告信号的激光安全围栏设备。 该装置包括用于产生激光束的激光发生器和与用于反射光束的激光束对准的第一反射镜。 第二反射镜与第一反射镜对准，用于反射由第一反射镜反射的光束，并且收集器与第二反射镜对准以收集由第二反射镜反射的光束。 微处理器与集电器和发生器相关联，用于感测何时射束被入侵者破坏，使得光束不被收集器接收。 当微处理器感测到光束被破坏从而警报器提供警告信号时，警报器连接到微处理器以由微处理器致动。
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公开(公告)号：US5135002A
公开(公告)日：1992-08-04
申请号：US400274
申请日：1989-08-29
IPC分类号： A61B5/0215 , G01L1/22 , G01L27/00
CPC分类号： A61B5/0215 , G01L1/2281 , G01L27/005
摘要： A pressure transducer compensation system for compensating an offset and adjusting the sensitivity of the pressure transducer to a predetermined level. A reusable cable (160) connected to a pressure monitor (14) is intended for use with a plurality of disposable pressure transducers (12). In one embodiment, a connector (150) of the reusable cable includes a CPU (70), which determines the offset and self-heating errors of the pressure transducer during the first 30 seconds it is energized, stores the corrections in its internal memory and compensates the output signal produced by the pressure transducer for those errors and for variations in ambient temperature. A gain-set resistor (56) is included in a male modular phone plug (202) of a disposable cable that is integrally connected to the pressure transducer, and is used by the compensation circuit to control the signal produced by the pressure transducer, compensating for the characteristic sensitivity of the device. In a second embodiment, the disposable cable includes an offset resistor (250), and the compensation system uses a charge balance modulator 9260) to produce a pulse width modulated signal that is compensated for both the offset and characteristic sensitivity of the pressure transducer.
摘要翻译： 一种用于补偿偏移并将压力传感器的灵敏度调整到预定水平的压力传感器补偿系统。 连接到压力监视器（14）的可重复使用的电缆（160）旨在与多个一次性压力换能器（12）一起使用。 在一个实施例中，可重复使用的电缆的连接器（150）包括CPU（70），其确定压力换能器在其被激励的前30秒期间的偏移和自加热误差，将校正存储在其内部存储器中， 补偿由压力传感器产生的这些误差和环境温度变化所产生的输出信号。 增益设置电阻器（56）包括在一体式连接到压力传感器的一次性电缆的阳型模块化电话插头（202）中，并由补偿电路用于控制由压力传感器产生的信号，补偿 用于器件的特性灵敏度。 在第二实施例中，一次性电缆包括偏移电阻器（250），并且补偿系统使用电荷平衡调制器9260）来产生补偿压力传感器的偏移和特性灵敏度的脉宽调制信号。
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