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    • 1. 发明申请
    • Method for verifying redundancy of secure systems
    • 验证安全系统冗余的方法
    • US20070067674A1
    • 2007-03-22
    • US11521827
    • 2006-09-15
    • Didier EssamePhilippe ForinBenoit Fumery
    • Didier EssamePhilippe ForinBenoit Fumery
    • G06F11/00
    • G06F11/1633G06F11/0796G06F11/1654
    • A secure system has two computers that are intrinsically safe and implements a method for verifying the redundancy for the outputs where a very high level of safety is required. The method makes it possible to handle inconsistencies in the outputs of the two computers when they are working in redundant mode. Each computer receives the output states determined by the other computer and compares them to states calculated. A state of divergent operation is detected if the computers have determined two different states for a single output. If a divergence is detected for at least one output, the state of that output is determined by preventing any transition from a restrictive state to a permissive state.
    • 安全系统具有本质安全的两台计算机,并且实现了在需要非常高的安全级别的情况下验证输出的冗余的方法。 该方法可以在冗余模式下处理两台计算机的输出端的不一致。 每个计算机接收由另一台计算机确定的输出状态,并将其与计算的状态进行比较。 如果计算机为单个输出确定了两种不同的状态,则检测到发散状态。 如果对于至少一个输出检测到发散,则通过防止从限制状态到允许状态的任何转变来确定该输出的状态。
    • 2. 发明授权
    • Method for verifying redundancy of secure systems
    • 验证安全系统冗余的方法
    • US07721149B2
    • 2010-05-18
    • US11521827
    • 2006-09-15
    • Didier EssamePhilippe ForinBenoit Fumery
    • Didier EssamePhilippe ForinBenoit Fumery
    • G06F11/00
    • G06F11/1633G06F11/0796G06F11/1654
    • A secure system has two computers that are intrinsically safe and implements a method for verifying the redundancy for the outputs where a very high level of safety is required. The method makes it possible to handle inconsistencies in the outputs of the two computers when they are working in redundant mode. Each computer receives the output states determined by the other computer and compares them to states calculated. A state of divergent operation is detected if the computers have determined two different states for a single output. If a divergence is detected for at least one output, the state of that output is determined by preventing any transition from a restrictive state to a permissive state.
    • 安全系统具有本质安全的两台计算机,并且实现了在需要非常高的安全级别的情况下验证输出的冗余的方法。 该方法可以在冗余模式下处理两台计算机的输出中的不一致。 每个计算机接收由另一台计算机确定的输出状态,并将其与计算的状态进行比较。 如果计算机为单个输出确定了两种不同的状态,则检测到发散状态。 如果对于至少一个输出检测到发散,则通过防止从限制状态到允许状态的任何转变来确定该输出的状态。
    • 7. 发明授权
    • Intrinsically safe logic and-circuit having two inputs
    • 本质安全的逻辑和电路有两个输入
    • US5357151A
    • 1994-10-18
    • US83434
    • 1993-06-29
    • Benoit Fumery
    • Benoit Fumery
    • B61L1/20H03K19/003H03K19/007H03K19/20
    • H03K19/20B61L1/20H03K19/00307H03K19/007
    • A logic AND circuit comprises, in a cascade arrangement, a threshold oscillator having a power supply input connected to a first circuit input and a clamping amplifier providing an output signal only when simultaneously the voltage on a second circuit input exceeds a threshold and the threshold oscillator delivers an output signal. The oscillator comprises a single transistor whose emitter and collector circuits contain two primary windings of a transformer whose secondary winding constitutes a tuned circuit in association with a four-lead capacitor and whose base is biased from the first input via a filter cell having a parallel-connected four-lead capacitor. The clamping amplifier includes a single transistor connected to the second input via a filter cell having a parallel-connected four-lead capacitor, with one of its emitter and collector circuits containing the primary winding of another transformer whose secondary winding contains a resonant circuit with a parallel-connected four-lead capacitor from whose terminals an alternating output signal is taken.
    • 逻辑与电路包括级联布置的阈值振荡器,其具有连接到第一电路输入的电源输入和仅在同时第二电路输入上的电压超过阈值时提供输出信号的钳位放大器,并且阈值振荡器 输出信号。 振荡器包括单个晶体管,其发射极和集电极电路包含变压器的两个初级绕组,其次级绕组构成与四引线电容器相关联的调谐电路,并且其基极经由具有并联的电容器的滤波器单元从第一输入端偏置, 连接四引脚电容。 钳位放大器包括通过具有并联四引脚电容器的滤波器单元连接到第二输入的单个晶体管,其发射极和集电极电路之一包含另一个变压器的初级绕组,其次级绕组包含具有 并联四引脚电容器,其端子采用交流输出信号。