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    • 1. 发明申请
    • PROTECTIVE CIRCUIT
    • 保护电路
    • WO2016037335A1
    • 2016-03-17
    • PCT/CN2014/086282
    • 2014-09-11
    • ABB TECHNOLOGY LTDLIU, WeiSHI, HuanLOHBECK, Axel
    • LIU, WeiSHI, HuanLOHBECK, Axel
    • H02H9/02
    • H02H9/02G05F1/565H02H3/087H02H9/025
    • Embodiments of the present disclosure provide a protective circuit to be used in a digital output module, the digital output module comprises a first voltage source (SI) and at least an output terminal. The protective circuit comprises: a first sampling unit (1) for sampling a first voltage relevant to the output current from the first voltage source (SI), a first comparing unit (2) for comparing the sampled first voltage with a first reference voltage (Vrefl), a control unit (3) for generating a current regulating signal based on a result from the first comparing unit (2), and a current regulating unit (4) for regulating the output current from the first voltage source (SI) based on the current regulating signal. This protective circuit provides overflowing and short circuit protection, and is cheap in cost.
    • 本公开的实施例提供了一种在数字输出模块中使用的保护电路,数字输出模块包括第一电压源(SI)和至少一个输出端子。 保护电路包括:第一采样单元(1),用于对来自第一电压源(SI)的输出电流进行采样的第一电压;第一比较单元(2),用于将采样的第一电压与第一参考电压 Vrefl),用于基于来自第一比较单元(2)的结果产生电流调节信号的控制单元(3)和用于基于来自第一电压源(SI)的输出电流调节的电流调节单元(4) 对电流调节信号。 该保护电路提供溢流和短路保护,成本便宜。
    • 3. 发明申请
    • CONTROL SYSTEM HAVING WIRE BREAK DETECTION CAPABILITY
    • 具有电线断路检测能力的控制系统
    • WO2015180091A1
    • 2015-12-03
    • PCT/CN2014/078781
    • 2014-05-29
    • ABB TECHNOLOGY LTDLIU, WeiLOHBECK, AxelSHI, Huan
    • LIU, WeiLOHBECK, AxelSHI, Huan
    • G05B19/418G01R31/08H04J3/00
    • G05B19/048G01R31/026G05B2219/21157
    • A control system (20) having wire break detection capability is provided. The control system (20) comprises a plurality of digital output channels, a timing division multiplexer (21) comprising a plurality of inputs and one output, wherein the plurality of inputs are connected to the corresponding plurality of digital output channels of the multi-channel device with digital outputs, respectively, and a wire break detection circuit (22) connected to the one output of the timing division multiplexer (21) and configured to perform wire break detection on corresponding one of the plurality of digital output channels, wherein the timing division multiplexer (21) is configured to in a detection period, enable the corresponding one of the plurality of digital output channels to connect with the wire break detection circuit (22) to perform wire break detection on the corresponding one digital output channel, and disable other digital output channels to connect with the wire break detection circuit (22).
    • 提供具有断线检测能力的控制系统(20)。 控制系统(20)包括多个数字输出通道,包括多个输入和一个输出的定时分路器(21),其中所述多个输入端连接到所述多通道的相应多个数字输出通道 分别具有数字输出的装置和连接到定时分路多路复用器(21)的一个输出端的断线检测电路(22),并且被配置为对多个数字输出通道的相应一个进行断线检测,其中定时 分路复用器(21)被配置为在检测周期中,使得多个数字输出通道中的相应一个数字输出通道能够与断线检测电路(22)连接,以对相应的一个数字输出通道执行断线检测,并且禁用 其他数字输出通道与断线检测电路(22)连接。
    • 4. 发明申请
    • APPARATUS AND METHOD FOR FILTERING NOISES IN SIGNAL
    • 信号中滤波噪声的装置和方法
    • WO2015165074A1
    • 2015-11-05
    • PCT/CN2014/076596
    • 2014-04-30
    • ABB TECHNOLOGY LTDLIU, WeiHE, LiangLOHBECK, Axel
    • LIU, WeiHE, LiangLOHBECK, Axel
    • H04B15/00
    • H03K5/1252H03K5/24
    • An apparatus (100) for filtering noises in a signal is disclosed. The apparatus comprises a hysteresis filter circuit (110) configured to filter hysteresis noises in an input signal to obtain a first signal;an impulse noise filter circuit (120) comprising a negative noise filter circuit (130) configured to filter negative impulse noises in the first signal to obtain a second signal,and a positive noise filter circuit (140) coupled with the negative noise filter circuit (130) in parallel, and configured to filter positive impulse noises in the first signal to obtain a third signal;and a combiner circuit (150)configured to combine the second signal and the third signal to obtain an output signal. With the apparatus and the method of this disclosure,different types of noises such as hysteresis noises,positive impulse noises as well as negative impulse noises can be filtered by using common electronic components which significantly improves cost effectiveness.
    • 公开了一种用于对信号中的噪声进行滤波的装置(100)。 该装置包括:滞后滤波器电路,被配置为对输入信号中的滞后噪声进行滤波以获得第一信号;脉冲噪声滤波器电路,包括负噪声滤波器电路,其被配置为滤除所述第一信号中的负脉冲噪声; 获得第二信号的第一信号和与负噪声滤波器电路(130)并联耦合的正噪声滤波器电路(140),并且被配置为对第一信号中的正脉冲噪声进行滤波以获得第三信号;以及组合器 电路(150)被配置为组合第二信号和第三信号以获得输出信号。 利用本公开的装置和方法,可以通过使用普通电子部件来过滤诸如滞后噪声,正脉冲噪声以及负脉冲噪声的不同类型的噪声,这显着地提高了成本效益。
    • 5. 发明申请
    • MODULE SUPPORTING HOT PLUG, BACKPLANE, SYSTEM AND METHOD FOR DETERMINING CONNECTION THEREOF
    • 支持热插拔的模块,背板,系统和确定其连接的方法
    • WO2014075268A1
    • 2014-05-22
    • PCT/CN2012/084677
    • 2012-11-15
    • ABB TECHNOLOGY LTDLIU, WeiLI, JinchengLOHBECK, Axel
    • LIU, WeiLI, JinchengLOHBECK, Axel
    • G06F13/40
    • G06F13/4068G01R31/04H01R13/641H01R43/26
    • Embodiments of the present invention disclose a module supporting hot plug, a backplane, a system comprising the module and the backplane, and a method for determining connection of the module with the backplane. The module may comprise a first connector comprising a first array of pins, and the backplane may comprise a second connector comprising a second array of pins corresponding to the first array of pins. A portion of the pins of the first array may be selected such that connection of the module with the backplane can be determined based on connection of the selected pins of the first array with corresponding pins of the second array. According to the embodiments of the present invention, the module will be enabled to work only after all the pins are effectively connected to the corresponding pins of the backplane. Thus, no invalid data will be transmitted to the field devices or controller. The hot plug function can be implemented without any extra components and without needing any extra operations from users.
    • 本发明的实施例公开了一种支持热插拔的模块,背板,包括模块和背板的系统,以及用于确定模块与背板的连接的方法。 模块可以包括第一连接器,其包括第一引脚阵列,并且背板可以包括第二连接器,该第二连接器包括与第一引脚阵列相对应的第二引脚阵列。 可以选择第一阵列的引脚的一部分,使得可以基于第一阵列的选定引脚与第二阵列的相应引脚的连接来确定模块与背板的连接。 根据本发明的实施例,只有在所有引脚有效地连接到背板的相应引脚之后,才能使模块工作。 因此,无法将数据传输到现场设备或控制器。 热插拔功能可以在没有任何额外的组件的情况下实现,也不需要用户的任何额外的操作。
    • 6. 发明申请
    • PULSE FREQUENCY MEASUREMENT DEVICE AND METHOD AND CONTROL SYSTEM
    • 脉冲频率测量装置及方法与控制系统
    • WO2014063316A1
    • 2014-05-01
    • PCT/CN2012/083428
    • 2012-10-24
    • ABB TECHNOLOGY LTDZHAI, LileiLIU, WeiLOHBECK, Axel
    • ZHAI, LileiLIU, WeiLOHBECK, Axel
    • H03K21/00
    • G01R23/10H03K21/38
    • The present invention discloses a pulse frequency measurement device and method and a control system, the device including: a hardware counter configured to perform a counting operation on an input pulse sequence to output a counting result; and a processing unit configured to obtain number of pulses from the counting result outputted by the hardware counter and measure a first time period during which the obtained number of pulses occupy, in which the processing unit includes a frequency calculation module configured to calculate a frequency of the input pulse sequence based on the obtained number of pulses and the first time period. According to the invention, it is possible to achieve adaptive pulse frequency measurement and multi-channel sampling for multiple input pulse sequences with a relatively low cost while ensuring the accuracy of the measurement result.
    • 本发明公开了一种脉冲频率测量装置及方法和控制系统,该装置包括:硬件计数器,被配置为对输入脉冲序列执行计数操作以输出计数结果; 以及处理单元,被配置为从硬件计数器输出的计数结果中获得脉冲数,并且测量所获得的脉冲数占据的第一时间段,其中处理单元包括频率计算模块,其被配置为计算频率 基于获得的脉冲数和第一时间段的输入脉冲序列。 根据本发明,可以在确保测量结果的准确性的同时以相对低的成本实现多输入脉冲序列的自适应脉冲频率测量和多通道采样。