CN114371672A - DCS response time testing system - Google Patents

DCS response time testing system Download PDF

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CN114371672A
CN114371672A CN202111532872.9A CN202111532872A CN114371672A CN 114371672 A CN114371672 A CN 114371672A CN 202111532872 A CN202111532872 A CN 202111532872A CN 114371672 A CN114371672 A CN 114371672A
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signal
dcs system
response time
voltage
input signal
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刘磊
秦天牧
高明帅
邢智炜
康静秋
高爱国
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State Grid Corp of China SGCC
North China Electric Power Research Institute Co Ltd
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North China Electric Power Research Institute Co Ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/418Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/41845Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/33Director till display
    • G05B2219/33273DCS distributed, decentralised controlsystem, multiprocessor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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Abstract

本发明实施例公开了一种DCS系统响应时间测试系统,该系统包括:输入信号产生回路、输出信号采集回路以及信号检测设备;所述输入信号产生回路与DCS系统的AI卡件连接,所述输入信号产生回路包括:用于产生信号的信号源以及第一电阻;所述输出信号采集回路与所述DCS系统的AO卡件或者DO卡件连接,所述输出信号采集回路包括:第二电阻;所述信号检测设备,用于检测所述第一电阻两侧的电压得到第一电压信号,以及检测所述第二电阻两侧的电压得到第二电压信号,进而根据所述第一电压信号和所述第二电压信号确定所述DCS系统的响应时间。本发明提供了一种准确、便捷的检测DCS系统的响应时间的方案。

Figure 202111532872

The embodiment of the present invention discloses a DCS system response time test system. The system includes: an input signal generation circuit, an output signal acquisition circuit, and a signal detection device; the input signal generation circuit is connected to an AI card of the DCS system, and the input signal generation circuit is connected to an AI card of the DCS system. The input signal generation circuit includes: a signal source for generating signals and a first resistor; the output signal acquisition circuit is connected to the AO card or DO card of the DCS system, and the output signal acquisition circuit includes: a second resistor The signal detection device is used to detect the voltage on both sides of the first resistor to obtain a first voltage signal, and detect the voltage on both sides of the second resistor to obtain a second voltage signal, and then according to the first voltage signal and the second voltage signal to determine the response time of the DCS system. The present invention provides an accurate and convenient solution for detecting the response time of the DCS system.

Figure 202111532872

Description

DCS系统响应时间测试系统DCS system response time test system

技术领域technical field

本发明涉及DCS系统技术领域,具体而言,涉及一种DCS系统响应时间测试系统。The invention relates to the technical field of DCS systems, in particular to a DCS system response time testing system.

背景技术Background technique

集散控制系统简称DCS,也可直译为“分散控制系统”。它采用控制分散、操作和管理集中的基本设计思想,采用多层分级、合作自治的结构形式。其主要特征是它的集中管理和分散控制。DCS在电力、冶金、石化等各行各业都获得了极其广泛的应用。The distributed control system is referred to as DCS, which can also be literally translated as "distributed control system". It adopts the basic design idea of decentralized control, centralized operation and management, and adopts a multi-layer hierarchical, cooperative and autonomous structure. Its main feature is its centralized management and decentralized control. DCS has been widely used in electric power, metallurgy, petrochemical and other industries.

DCS控制着整个工艺过程的各个环节,小到现场的一个仪表,大到整个大型设备,如火电厂的汽轮机。因此提高DCS的稳定性、可靠性直接影响着工艺过程的运行安全。响应时间是DCS系统的一个重要指标,但是由于各个厂家生产的DCS系统各自技术保密,导致无法从内部检验DCS系统的响应时间,这就导致目前难以对DCS系统的响应时间进行准确的检测。DCS controls all aspects of the entire process, ranging from a small instrument on site to the entire large equipment, such as the steam turbine of a thermal power plant. Therefore, improving the stability and reliability of DCS directly affects the operation safety of the process. The response time is an important indicator of the DCS system, but due to the confidentiality of the respective technologies of the DCS systems produced by various manufacturers, the response time of the DCS system cannot be checked internally, which makes it difficult to accurately detect the response time of the DCS system at present.

由此可见,如何准确、便捷的检测DCS系统的响应时间是本领域急需解决的技术问题。It can be seen that how to accurately and conveniently detect the response time of the DCS system is a technical problem that needs to be solved urgently in the art.

发明内容SUMMARY OF THE INVENTION

本发明为了实现准确、便捷的检测DCS系统的响应时间,提出了一种DCS系统响应时间测试系统。In order to realize the accurate and convenient detection of the response time of the DCS system, the present invention proposes a response time test system of the DCS system.

为了实现上述目的,根据本发明的一个方面,提供了一种DCS系统响应时间测试系统,该系统包括:输入信号产生回路、输出信号采集回路以及信号检测设备;In order to achieve the above object, according to an aspect of the present invention, a DCS system response time test system is provided, the system comprising: an input signal generation loop, an output signal acquisition loop and a signal detection device;

所述输入信号产生回路与DCS系统的AI卡件连接,所述输入信号产生回路包括:用于产生信号的信号源以及第一电阻;The input signal generating circuit is connected to the AI card of the DCS system, and the input signal generating circuit includes: a signal source for generating a signal and a first resistor;

所述输出信号采集回路与所述DCS系统的AO卡件或者DO卡件连接,所述输出信号采集回路包括:第二电阻;The output signal acquisition circuit is connected to the AO card or the DO card of the DCS system, and the output signal acquisition circuit includes: a second resistor;

所述信号检测设备,用于检测所述第一电阻两侧的电压得到第一电压信号,以及检测所述第二电阻两侧的电压得到第二电压信号,进而根据所述第一电压信号和所述第二电压信号确定所述DCS系统的响应时间。The signal detection device is used to detect the voltage on both sides of the first resistor to obtain a first voltage signal, and detect the voltage on both sides of the second resistor to obtain a second voltage signal, and then according to the first voltage signal and The second voltage signal determines the response time of the DCS system.

可选的,所述信号检测设备,具体用于根据所述第一电压信号确定输入信号触发时刻,以及根据所述第二电压信号确定输出信号响应时刻,进而用所述输出信号响应时刻减去所述输入信号触发时刻得到所述DCS系统的响应时间。Optionally, the signal detection device is specifically configured to determine the trigger time of the input signal according to the first voltage signal, and determine the response time of the output signal according to the second voltage signal, and then subtract the response time of the output signal from the output signal. The response time of the DCS system is obtained at the trigger moment of the input signal.

可选的,所述输入信号产生回路上设置有电源或者所述输入信号产生回路连接所述DCS系统中的电源。Optionally, a power supply is provided on the input signal generating loop or the input signal generating loop is connected to the power supply in the DCS system.

可选的,所述输出信号采集回路上设置有电源或者所述输出信号采集回路连接所述DCS系统中的电源。Optionally, the output signal acquisition loop is provided with a power supply or the output signal acquisition loop is connected to the power supply in the DCS system.

可选的,所述信号源用于产生脉冲信号。Optionally, the signal source is used to generate a pulse signal.

为了实现上述目的,根据本发明的另一方面,还提供了另一种DCS系统响应时间测试系统,该系统包括:In order to achieve the above object, according to another aspect of the present invention, another DCS system response time test system is also provided, and the system includes:

输入信号产生回路、输出信号采集回路以及信号检测设备;Input signal generation circuit, output signal acquisition circuit and signal detection equipment;

所述输入信号产生回路与DCS系统的DI卡件连接,所述输入信号产生回路包括:开关以及触发电路,所述触发电路用于控制所述开关的通断以产生通断信号;The input signal generating circuit is connected to the DI card of the DCS system, and the input signal generating circuit includes a switch and a trigger circuit, and the trigger circuit is used to control the on-off of the switch to generate the on-off signal;

所述输出信号采集回路与所述DCS系统的AO卡件或者DO卡件连接,所述输出信号采集回路包括:第二电阻;The output signal acquisition circuit is connected to the AO card or the DO card of the DCS system, and the output signal acquisition circuit includes: a second resistor;

所述信号检测设备,用于检测所述开关两侧的电压得到第一电压信号,以及检测所述第二电阻两侧的电压得到第二电压信号,进而根据所述第一电压信号和所述第二电压信号确定所述DCS系统的响应时间。The signal detection device is used for detecting the voltage on both sides of the switch to obtain a first voltage signal, and detecting the voltage on both sides of the second resistor to obtain a second voltage signal, and then according to the first voltage signal and the The second voltage signal determines the response time of the DCS system.

可选的,所述开关为高速可控硅开关器件。Optionally, the switch is a high-speed thyristor switching device.

本发明的有益效果为:The beneficial effects of the present invention are:

本发明实施例通过输入信号产生回路产生输入信号输入到DCS系统的输入端(AI卡件或DI卡件),进而通过输出信号采集回路采集DCS系统的输出端(AO或DO)的输出,进而根据信号检测设备对信号进行检测,并根据检测的信号确定DCS系统的响应时间,实现了准确、便捷的检测DCS系统的响应时间的技术效果。In the embodiment of the present invention, the input signal is generated by the input signal generation loop and input to the input terminal (AI card or DI card) of the DCS system, and then the output of the output terminal (AO or DO) of the DCS system is collected through the output signal acquisition circuit, and then The signal is detected according to the signal detection device, and the response time of the DCS system is determined according to the detected signal, thereby realizing the technical effect of accurately and conveniently detecting the response time of the DCS system.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。在附图中:In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts. In the attached image:

图1是本发明第一实施例DCS系统响应时间测试系统的示意图;Fig. 1 is the schematic diagram of the DCS system response time test system of the first embodiment of the present invention;

图2是本发明第二实施例DCS系统响应时间测试系统的示意图;Fig. 2 is the schematic diagram of the DCS system response time test system of the second embodiment of the present invention;

图3是本发明第三实施例DCS系统响应时间测试系统的示意图;Fig. 3 is the schematic diagram of the DCS system response time test system of the third embodiment of the present invention;

图4是本发明实施例运算周期20ms时的信号示意图;4 is a schematic diagram of a signal when the operation cycle is 20ms according to an embodiment of the present invention;

图5是本发明实施例运算周期100ms时的信号示意图;5 is a schematic diagram of a signal when the operation period is 100ms according to an embodiment of the present invention;

图6是本发明实施例运算周期400ms时的信号示意图。FIG. 6 is a schematic diagram of a signal when the operation period is 400 ms according to an embodiment of the present invention.

具体实施方式Detailed ways

为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分的实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本发明保护的范围。In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

需要说明的是,本发明的说明书和权利要求书及上述附图中的术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含。It should be noted that the terms "comprising" and "having" in the description and claims of the present invention and the above-mentioned drawings, as well as any modifications thereof, are intended to cover non-exclusive inclusion.

需要说明的是,在不冲突的情况下,本发明中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

本发明的DCS系统响应时间测试系统包括:输入信号产生回路、输出信号采集回路以及信号检测设备。The DCS system response time testing system of the present invention includes an input signal generating circuit, an output signal collecting circuit and a signal detecting device.

需要说明的是,DCS系统包含:AI卡件、AO卡件、DI卡件以及DO卡件。It should be noted that the DCS system includes: AI card, AO card, DI card and DO card.

AI卡件为AI模拟量输入卡件,用于把被控对象模拟量转换成计算机能识别的数字信号。The AI card is an AI analog input card, which is used to convert the analog quantity of the controlled object into a digital signal that can be recognized by the computer.

AO卡件为AO模拟量输出卡件,用于把计算机的输出数字信号转换成外部过程控制仪表或装置能够接受的模拟量信号。The AO card is an AO analog output card, which is used to convert the output digital signal of the computer into an analog signal that can be accepted by an external process control instrument or device.

DI卡件为DI数字量输入卡件,用于把生产过程中只有两种状态的开关量信号转换成计算机可识别的信号形式。The DI card is a DI digital input card, which is used to convert the switch signal with only two states in the production process into a signal form that can be recognized by the computer.

DO卡件为DO数字量输出卡件,用于把计算机输出的二进制代码来表示的开关量信号转换成能对生产过程进行控制或显示状态的开关量信号。The DO card is a DO digital output card, which is used to convert the digital signal represented by the binary code output by the computer into a digital signal that can control the production process or display the state.

图1是本发明第一实施例DCS系统响应时间测试系统的示意图,图1中虚线部分为DCS原有系统,如图1所示,在本发明一个实施例中,输入信号产生回路与AI卡件连接,输入信号产生回路用于产生信号,并将产生的信号送入AI卡件。如图1所示,输入信号产生回路具体包括:信号源和第一电阻R1。如图1所示,在本发明一个实施例中,输出信号采集回路与DCS系统的AO卡件连接,用于接收AO卡件输出的信号。如图1所示,输出信号采集回路包括:第二电阻R2。如图1所示,信号检测设备G1,用于检测第一电阻R1两侧的电压得到第一电压信号CH1,以及检测第二电阻R2两侧的电压得到第二电压信号CH2,进而根据第一电压信号CH1和第二电压信号CH2确定所述DCS系统的响应时间。Fig. 1 is a schematic diagram of a DCS system response time testing system according to a first embodiment of the present invention. The dotted line in Fig. 1 is the original DCS system. As shown in Fig. 1, in an embodiment of the present invention, the input signal generation loop and the AI The device is connected, the input signal generation circuit is used to generate the signal, and the generated signal is sent to the AI card. As shown in FIG. 1 , the input signal generating circuit specifically includes: a signal source and a first resistor R1 . As shown in FIG. 1 , in an embodiment of the present invention, the output signal acquisition circuit is connected to the AO card of the DCS system, and is used to receive the signal output by the AO card. As shown in Figure 1, the output signal acquisition loop includes: a second resistor R2. As shown in FIG. 1, the signal detection device G1 is used to detect the voltage on both sides of the first resistor R1 to obtain a first voltage signal CH1, and detect the voltage on both sides of the second resistor R2 to obtain a second voltage signal CH2, and then according to the first The voltage signal CH1 and the second voltage signal CH2 determine the response time of the DCS system.

在本发明可选实施例中,所述输入信号产生回路上设置有电源或者所述输入信号产生回路连接所述DCS系统中的电源(即所述输入信号产生回路可以采用DCS系统内部电源或DCS系统外部电源)。所述输出信号采集回路上设置有电源或者所述输出信号采集回路连接DCS系统中的电源(即所述输出信号采集回路可以采用DCS系统内部电源或DCS系统外部电源)。图1实施例中采用的是输入信号产生回路上设置电源,以及输出信号采集回路连接DCS系统中的电源的方案。输入信号产生回路连接DCS系统中的电源的方案可以如图2所示,输出信号采集回路上设置电源的方案可以如图3所示。In an optional embodiment of the present invention, a power supply is provided on the input signal generating circuit, or the input signal generating circuit is connected to the power supply in the DCS system (that is, the input signal generating circuit can use the internal power supply of the DCS system or the DCS system system external power supply). The output signal acquisition circuit is provided with a power supply or the output signal acquisition circuit is connected to the power supply in the DCS system (that is, the output signal acquisition circuit can use the internal power supply of the DCS system or the external power supply of the DCS system). In the embodiment of FIG. 1 , a solution is adopted in which a power supply is provided on the input signal generating circuit, and the output signal acquisition circuit is connected to the power supply in the DCS system. The scheme of the input signal generation loop connecting the power supply in the DCS system can be shown in Figure 2, and the scheme of setting the power supply on the output signal acquisition loop can be shown in Figure 3.

在本发明一个实施例中,所述信号检测设备G1,具体用于根据所述第一电压信号CH1确定输入信号触发时刻,以及根据所述第二电压信号CH2确定输出信号响应时刻,进而用所述输出信号响应时刻减去所述输入信号触发时刻得到所述DCS系统的响应时间。在本发明一个实施例中,所述信号源产生的是脉冲信号,便于更好的从CH1确定输入信号触发时刻以及从CH2确定输出信号响应时刻。In an embodiment of the present invention, the signal detection device G1 is specifically configured to determine the trigger time of the input signal according to the first voltage signal CH1, and determine the response time of the output signal according to the second voltage signal CH2, and then use the The response time of the DCS system is obtained by subtracting the triggering time of the input signal from the response time of the output signal. In an embodiment of the present invention, the signal source generates a pulse signal, so as to better determine the trigger time of the input signal from CH1 and the response time of the output signal from CH2.

如图1所示,本发明采用从DCS系统中引用一个模拟量输入卡件AI中的一个通道(图1实施例中采用的是AI通道外供电方式,DC为恒流源,若AI为电压型,DC替换为恒压源即可。同理可以采用DCS系统内供电方式连接,只是输入信号产生回路的接线方式和信号源供电方式需要改变);另一个采用模拟量输出卡件AO中的一个通道(图1实施例中采用的AO的DCS系统内供电方式,即DC1为DCS系统内的恒流源,若AO输出为电压信号,则DC1为恒压源。同样输出信号采集回路根据实际需要可以采用外供电方式,只是需要增加外部供电和接线方式)。AI与AO之间的数据交互是通过DCS系统内部算法连接实现的。As shown in Figure 1, the present invention adopts a channel in an analog input card AI from the DCS system (in the embodiment of Figure 1, the AI channel external power supply mode is adopted, DC is a constant current source, if AI is a voltage type, DC can be replaced with a constant voltage source. Similarly, the power supply in the DCS system can be used to connect, but the wiring method of the input signal generation circuit and the power supply method of the signal source need to be changed); the other uses the analog output card AO in the One channel (the power supply mode in the DCS system of the AO adopted in the embodiment of Fig. 1, that is, DC1 is the constant current source in the DCS system, if the AO output is a voltage signal, then DC1 is a constant voltage source. The same output signal acquisition loop is based on the actual It needs to be able to use external power supply, but it is only necessary to increase external power supply and wiring). The data interaction between AI and AO is realized through the internal algorithm connection of the DCS system.

在本发明一个实施例中,AI通道检测分为电流和电压检测,一般广泛采用为电流检测即检测电流为4-20mA(4mA对应量程0%,20mA对应100%)。为了增加检测的灵敏度、抗干扰能力和可靠性,需要为输入信号产生回路增加直流电源(一般电压1V-2V即可)。输入信号产生回路中的信号源采用高精度的频率可调的脉冲信号或者正弦波信号(检测DCS系统响应时间宜采用脉冲信号,检测DCS系统信号稳定和输入输出信号的复现特性)。同时输入信号产生回路中设置串联第一电阻R1(具体阻值在100Ω-500Ω即可,根据电流4-20mA转化为电压信号,具体电压值可以由欧姆定律U=IR1得到)。In one embodiment of the present invention, the AI channel detection is divided into current and voltage detection, which is generally widely used as current detection, that is, the detection current is 4-20 mA (4 mA corresponds to 0% of the range, and 20 mA corresponds to 100%). In order to increase the detection sensitivity, anti-interference ability and reliability, it is necessary to add a DC power supply to the input signal generation loop (generally a voltage of 1V-2V). The signal source in the input signal generation loop adopts high-precision frequency-adjustable pulse signal or sine wave signal (pulse signal should be used to detect the response time of the DCS system, to detect the stability of the DCS system signal and the recurrence characteristics of the input and output signals). At the same time, a first resistor R1 in series is set in the input signal generation loop (the specific resistance value is 100Ω-500Ω, and the current 4-20mA is converted into a voltage signal, and the specific voltage value can be obtained from Ohm's law U=IR 1 ).

在本发明一个实施例中,AO通道检测分为电流和电压检测,一般广泛采用为电流检测即检测电流为4-20mA(4mA对应量程0%,20mA对应100%)。图1实施例采用DCS系统内部供电方式,AO通道输出4-20mA恒流源,串接第二电阻R2转化为电压检测信号(具体阻值在100Ω-500Ω即可,根据电流4-20mA转化为电压信号,具体电压值可以由欧姆定律U=IR2得到)。In an embodiment of the present invention, the AO channel detection is divided into current and voltage detection, which is generally widely used as current detection, that is, the detection current is 4-20 mA (4 mA corresponds to 0% of the range, and 20 mA corresponds to 100%). The embodiment in Figure 1 adopts the internal power supply mode of the DCS system, the AO channel outputs a 4-20mA constant current source, and the second resistor R2 is connected in series to convert it into a voltage detection signal (the specific resistance value can be 100Ω-500Ω, according to the current 4-20mA is converted into The voltage signal, the specific voltage value can be obtained by Ohm's law U=IR 2 ).

在本发明一个实施例中,G1为高速信号检测设备,其信号分辨率在0.0005s以内,根据普通DCS系统的运算周期在20ms-500ms之间,根据香农采样定理G1的信号分辨率能够满足要求。G1的一个通道CH1接入R1两端,即信号输入侧;另一个通道CH2接入R2两端,即信号输出侧。通过检测R1和R2两端的信号波形,并对波形进行分析,从CH1中分析确定出输入信号触发时刻,从CH2中分析确定出输出信号响应时刻,输入信号触发时刻到输出信号响应时刻之间的时间差即为DCS系统的响应时间。In an embodiment of the present invention, G1 is a high-speed signal detection device, and its signal resolution is within 0.0005s. According to the operation period of a common DCS system, the operation period is between 20ms and 500ms. According to the Shannon sampling theorem, the signal resolution of G1 can meet the requirements. . One channel CH1 of G1 is connected to both ends of R1, that is, the signal input side; the other channel CH2 is connected to both ends of R2, that is, the signal output side. By detecting the signal waveforms at both ends of R1 and R2, and analyzing the waveforms, the input signal trigger time is determined from CH1, the output signal response time is determined from CH2, and the time between the input signal trigger time and the output signal response time is determined. The time difference is the response time of the DCS system.

图2是本发明第二实施例DCS系统响应时间测试系统的示意图,图2中虚线部分为DCS原有系统,如图2所示,在本发明一个实施例中,输入信号产生回路与DI卡件连接,输入信号产生回路用于产生通断信号,并将产生的通断信号送入DI卡件。由于DI卡件的输入开关量信号(即通断信号),因此在图2的实施例中,输入信号产生回路具体包括:开关T1以及触发电路,所述触发电路用于控制所述开关T1的通断以产生通断信号。在图2实施例中,输出信号采集回路与DCS系统的AO卡件连接,用于接收AO卡件输出的信号。如图2所示,输出信号采集回路包括:第二电阻R2。如图2所示,信号检测设备G1,用于检测开关T1两侧的电压得到第一电压信号CH1,以及检测第二电阻R2两侧的电压得到第二电压信号CH2,进而根据第一电压信号CH1和第二电压信号CH2确定所述DCS系统的响应时间。Fig. 2 is a schematic diagram of a DCS system response time test system according to a second embodiment of the present invention. The dotted line in Fig. 2 is the original DCS system. As shown in Fig. 2, in an embodiment of the present invention, the input signal generation loop and the DI card The device is connected, and the input signal generating circuit is used to generate the on-off signal, and send the generated on-off signal to the DI card. Due to the input switch signal (ie on-off signal) of the DI card, in the embodiment of FIG. 2 , the input signal generating circuit specifically includes a switch T1 and a trigger circuit, and the trigger circuit is used to control the switch T1 . On and off to generate the on-off signal. In the embodiment of FIG. 2 , the output signal acquisition circuit is connected to the AO card of the DCS system for receiving the signal output by the AO card. As shown in Figure 2, the output signal acquisition loop includes: a second resistor R2. As shown in FIG. 2, the signal detection device G1 is used to detect the voltage on both sides of the switch T1 to obtain a first voltage signal CH1, and detect the voltage on both sides of the second resistor R2 to obtain a second voltage signal CH2, and then according to the first voltage signal CH1 and the second voltage signal CH2 determine the response time of the DCS system.

在本发明可选实施例中,所述输入信号产生回路上设置有电源或者所述输入信号产生回路连接所述DCS系统中的电源(即所述输入信号产生回路可以采用DCS系统内部电源或DCS系统外部电源)。所述输出信号采集回路上设置有电源或者所述输出信号采集回路连接DCS系统中的电源(即所述输出信号采集回路可以采用DCS系统内部电源或DCS系统外部电源)。图2实施例中采用的是输入信号产生回路连接DCS系统中的电源,以及输出信号采集回路连接DCS系统中的电源的方案。In an optional embodiment of the present invention, a power supply is provided on the input signal generating circuit, or the input signal generating circuit is connected to the power supply in the DCS system (that is, the input signal generating circuit can use the internal power supply of the DCS system or the DCS system system external power supply). The output signal acquisition circuit is provided with a power supply or the output signal acquisition circuit is connected to the power supply in the DCS system (that is, the output signal acquisition circuit can use the internal power supply of the DCS system or the external power supply of the DCS system). In the embodiment of FIG. 2, a solution is adopted in which the input signal generating circuit is connected to the power supply in the DCS system, and the output signal acquisition circuit is connected to the power supply in the DCS system.

如图2所示,图中DI信号为DCS系统内部供电类型,且为电压信号,输入信号产生回路通过产生通断信号,为防止普通开关信号开闭过程中的抖动问题,给监测过程带来不必要的判断干扰问题。因此开关T1采用了高速可控硅开关器件,通过触发电路来控制开关T1的通断,当T1关断时,监测CH1电压为电源DC空载电压值,例如5V,当T1导通时,CH1监测的为开关T1两端器件压降(一般很小,例如0.1V)。电压从电源DC空载电压值降到开关T1两端器件压降这个时刻(即通断信号出现的时刻)即为输入信号触发时刻。As shown in Figure 2, the DI signal in the figure is the internal power supply type of the DCS system, and it is a voltage signal. The input signal generation loop generates an on-off signal to prevent the jitter problem during the opening and closing of the ordinary switch signal, which brings about the monitoring process. Unnecessary judgment interferes with the problem. Therefore, the switch T1 adopts a high-speed thyristor switching device, and the on-off of the switch T1 is controlled by the trigger circuit. When T1 is turned off, the monitoring CH1 voltage is the DC no-load voltage value of the power supply, such as 5V. When T1 is turned on, CH1 What is monitored is the device voltage drop across switch T1 (usually small, such as 0.1V). The moment when the voltage drops from the DC no-load voltage value of the power supply to the voltage drop of the devices at both ends of the switch T1 (ie, the moment when the on-off signal appears) is the trigger moment of the input signal.

图2实施例的输出信号采集回路对AO卡件的采集与图1实施例的完全相同,具体可以参见图1实施例,这里不再赘述。The collection of the AO card by the output signal collection circuit of the embodiment of FIG. 2 is exactly the same as that of the embodiment of FIG. 1 . For details, refer to the embodiment of FIG. 1 , which will not be repeated here.

在图2实施例中,信号检测设备G1,用于检测开关T1两侧的电压得到第一电压信号CH1,以及检测第二电阻R2两侧的电压得到第二电压信号CH2,进而根据第一电压信号CH1和第二电压信号CH2确定所述DCS系统的响应时间。具体的,信号检测设备G1对第一电压信号CH1进行分析,将CH1中电压从电源DC空载电压值降到开关T1两端器件压降这个时刻作为输入信号触发时刻t1,并从第二电压信号CH2中确定输出信号响应时刻t2,进而用t2减去t1得到DCS系统的响应时间。In the embodiment of FIG. 2, the signal detection device G1 is used to detect the voltage on both sides of the switch T1 to obtain the first voltage signal CH1, and to detect the voltage on both sides of the second resistor R2 to obtain the second voltage signal CH2, and then according to the first voltage The signal CH1 and the second voltage signal CH2 determine the response time of the DCS system. Specifically, the signal detection device G1 analyzes the first voltage signal CH1, and takes the moment when the voltage in CH1 drops from the DC no-load voltage value of the power supply to the voltage drop of the devices at both ends of the switch T1 as the input signal trigger time t1, and the second voltage The response time t2 of the output signal is determined in the signal CH2, and then the response time of the DCS system is obtained by subtracting t1 from t2.

图3是本发明第三实施例DCS系统响应时间测试系统的示意图,图3中虚线部分为DCS原有系统,如图3所示,在本发明一个实施例中,输入信号产生回路与AI卡件连接,输入信号产生回路用于产生信号(优选为脉冲信号),并将产生的信号送入AI卡件。如图3所示,输入信号产生回路具体包括:信号源和第一电阻R1。如图3所示,在本实施例中,输出信号采集回路与DCS系统的DO卡件连接,用于接收DO卡件输出的信号,DO卡件输出的是开关量信号(即通断信号)。如图3所示,输出信号采集回路包括:第二电阻R2。如图3所示,信号检测设备G1,用于检测第一电阻R1两侧的电压得到第一电压信号CH1,以及检测第二电阻R2两侧的电压得到第二电压信号CH2,进而根据第一电压信号CH1和第二电压信号CH2确定所述DCS系统的响应时间。Fig. 3 is a schematic diagram of a DCS system response time test system according to a third embodiment of the present invention. The dotted line in Fig. 3 is the original DCS system. As shown in Fig. 3, in an embodiment of the present invention, the input signal generation loop and the AI card The device is connected, and the input signal generating circuit is used to generate a signal (preferably a pulse signal), and send the generated signal to the AI card. As shown in FIG. 3 , the input signal generating circuit specifically includes: a signal source and a first resistor R1 . As shown in Figure 3, in this embodiment, the output signal acquisition circuit is connected to the DO card of the DCS system, and is used to receive the signal output by the DO card, and the output of the DO card is a switch signal (ie, on-off signal). . As shown in FIG. 3 , the output signal acquisition loop includes: a second resistor R2. As shown in FIG. 3, the signal detection device G1 is used to detect the voltage on both sides of the first resistor R1 to obtain a first voltage signal CH1, and detect the voltage on both sides of the second resistor R2 to obtain a second voltage signal CH2, and then according to the first The voltage signal CH1 and the second voltage signal CH2 determine the response time of the DCS system.

如图3所示,图3实施例中输入信号产生回路中设置有电源,即采用DCS系统外部供电方案,图3实施例中输出信号采集回路中设置有电源,即采用DCS系统外部供电方案。As shown in FIG. 3 , in the embodiment of FIG. 3 , a power supply is provided in the input signal generating circuit, that is, an external power supply scheme of the DCS system is adopted, and a power supply is provided in the output signal acquisition circuit in the embodiment of FIG.

在图3实施例中,DO卡件输出的是开关量信号(即通断信号),信号检测设备G1确定出第二电压信号CH2中通断信号出现时刻为输出信号响应时刻。In the embodiment of FIG. 3 , the output of the DO card is a switch signal (ie, on-off signal), and the signal detection device G1 determines that the on-off signal in the second voltage signal CH2 appears as the output signal response time.

在图3实施例中,输入为AI信号,输出为DO信号的监测回路。AI的如上述描述。DO采用外供电模式,G1的CH2通道监测保护电阻R2两端的电压,当AI触发后经过DCS逻辑运算输出DO信号,DO产生通断信号,通过判断R2两端的电压即可判定输出信号响应时刻。In the embodiment of FIG. 3 , the input is the AI signal, and the output is the monitoring loop of the DO signal. AI is as described above. DO adopts external power supply mode. The CH2 channel of G1 monitors the voltage across the protection resistor R2. When AI is triggered, it outputs DO signal through DCS logic operation. DO generates an on-off signal. By judging the voltage across R2, the response time of the output signal can be determined.

在本发明第四实施例中,输入信号产生回路与DI卡件连接,输入信号产生回路用于产生通断信号,并将产生的通断信号送入DI卡件。由于DI卡件的输入为开关量信号(即通断信号),因此在图2的实施例中,输入信号产生回路具体包括:开关T1以及触发电路,所述触发电路用于控制所述开关T1的通断以产生通断信号。输出信号采集回路与DCS系统的DO卡件连接,用于接收DO卡件输出的信号,DO卡件输出的是开关量信号(即通断信号),输出信号采集回路包括:第二电阻R2。在本实施例中,信号检测设备G1,用于检测开关T1两侧的电压得到第一电压信号CH1,以及检测第二电阻R2两侧的电压得到第二电压信号CH2,进而根据第一电压信号CH1和第二电压信号CH2确定所述DCS系统的响应时间。In the fourth embodiment of the present invention, the input signal generating circuit is connected to the DI card, and the input signal generating circuit is used to generate the on-off signal, and send the generated on-off signal to the DI card. Since the input of the DI card is a switch signal (ie on-off signal), in the embodiment of FIG. 2 , the input signal generating circuit specifically includes: a switch T1 and a trigger circuit, and the trigger circuit is used to control the switch T1 on and off to generate the on-off signal. The output signal acquisition circuit is connected with the DO card of the DCS system, and is used to receive the signal output by the DO card. The output of the DO card is a switch signal (ie on-off signal). The output signal acquisition circuit includes: a second resistor R2. In this embodiment, the signal detection device G1 is used to detect the voltage on both sides of the switch T1 to obtain the first voltage signal CH1, and to detect the voltage on both sides of the second resistor R2 to obtain the second voltage signal CH2, and then according to the first voltage signal CH1 and the second voltage signal CH2 determine the response time of the DCS system.

在第四实施例中,DI卡件的输入为开关量信号(即通断信号),DO卡件输出的是开关量信号(即通断信号),信号检测设备G1可以确定出第一电压信号CH1中通断信号出现时刻为输入信号触发时刻,确定出第二电压信号CH2中通断信号出现时刻为输出信号响应时刻。In the fourth embodiment, the input of the DI card is a switch signal (ie on-off signal), the output of the DO card is a switch signal (ie on-off signal), and the signal detection device G1 can determine the first voltage signal The time when the on-off signal in CH1 appears is the trigger time of the input signal, and it is determined that the time when the on-off signal in the second voltage signal CH2 appears is the time when the output signal responds.

由以上实施例可见,采用本发明方案可以解决所有类型的DCS系统,以及DCS中不同类型卡件,不同供电类型的响应时间监测问题。It can be seen from the above embodiments that the solution of the present invention can solve the problem of monitoring the response time of all types of DCS systems, as well as different types of cards and different power supply types in the DCS.

下面将结合具体的实施例对本发明上述方案进行解释说明。The above solutions of the present invention will be explained below with reference to specific embodiments.

采用本发明方案分别设置DPU控制运算周期分别在20ms、100ms和400ms条件下检测的CHl和CH2的数据和图形。Adopt the scheme of the present invention to set the data and graphics of CH1 and CH2 detected by the DPU control operation cycle under the conditions of 20ms, 100ms and 400ms respectively.

1、DPU控制器运算周期20ms。1. The operation cycle of the DPU controller is 20ms.

按照图1实施例的方案接入后启动G1检测设备,启动信号源产生脉冲信号,记录波形如图4所示。According to the scheme of the embodiment in FIG. 1, after the G1 detection device is connected, the signal source is started to generate a pulse signal, and the recorded waveform is shown in FIG. 4.

如图4所示,CH1为输入通道即R1两端的电压信号,触发时间为t1时刻;CH2为输出通道R2两端的电压信号,接受的信号时刻为t2。根据Δt=t2-t1=38.46ms得到响应时间为38.46ms。即DCS的全响应时间为38.46ms,Δt=AI采样滤波时间+DPU运算周期时间+AO输出转换时间。同时对于本次试验输出信号可以看出三次后阶跃变化才稳定,其响应变化的连续性较差。同时对于试验可以采用多次试验后进行算数平均,消除随机误差。As shown in Figure 4, CH1 is the voltage signal at both ends of the input channel R1, and the trigger time is time t1 ; CH2 is the voltage signal at both ends of the output channel R2, and the received signal time is t2 . According to Δt=t 2 −t 1 =38.46ms, the response time is 38.46ms. That is, the full response time of DCS is 38.46ms, Δt=AI sampling filter time+DPU operation cycle time+AO output conversion time. At the same time, for the output signal of this test, it can be seen that the step change is stable after three times, and the continuity of the response change is poor. At the same time, for the test, the arithmetic average can be used after multiple tests to eliminate random errors.

2、DPU控制器运算周期100ms。2. The operation cycle of the DPU controller is 100ms.

按照图1实施例的方案接入后启动G1检测设备,启动信号源产生脉冲信号,记录波形如图5所示。According to the scheme of the embodiment in FIG. 1 , the G1 detection device is started after access, the signal source is started to generate a pulse signal, and the recorded waveform is shown in FIG. 5 .

如图5所示,CHl为输入通道即R1两端的电压信号,触发时间为t1时刻;CH2为输出通道R2两端的电压信号,接受的信号时刻为t2。根据Δt=t2-t1=149.42ms得到响应时间为149.42ms。即DCS的全响应时间为149.42ms。As shown in Figure 5, CH1 is the voltage signal at both ends of the input channel R1, and the trigger time is time t1 ; CH2 is the voltage signal at both ends of the output channel R2, and the received signal time is t2 . According to Δt=t 2 −t 1 =149.42ms, the response time is 149.42ms. That is, the full response time of DCS is 149.42ms.

Δt=AI采样滤波时间+DPU运算周期时间+AO输出转换时间。同时对于本次试验输出信号可以较为平稳,其响应变化的连续性较好。同时对于试验可以采用多次试验后进行算数平均,消除随机误差。Δt=AI sampling filter time+DPU operation cycle time+AO output conversion time. At the same time, the output signal of this test can be relatively stable, and the continuity of its response changes is better. At the same time, for the test, the arithmetic average can be used after multiple tests to eliminate random errors.

在高速运行条件下,AO响应时间由于自身硬件D/A转换芯片的限制,输出过程的不连续问题表现得比较明显;当信号速率下降后,连续性得到改善。由此可以,本发明的信号检测设备G1还可以对CH2波形进行分析,确定CH2波形中是否有阶跃,若存在阶跃则可以确定当前DPU控制器运算周期过小(即信号速率过大),以提示工作人员对DPU控制器运算周期进行设置。Under high-speed operation conditions, the AO response time is limited by its own hardware D/A conversion chip, and the discontinuity in the output process is obvious; when the signal rate decreases, the continuity is improved. Therefore, the signal detection device G1 of the present invention can also analyze the CH2 waveform to determine whether there is a step in the CH2 waveform. If there is a step, it can be determined that the current DPU controller operation cycle is too small (that is, the signal rate is too large). , to prompt the staff to set the operation cycle of the DPU controller.

3、DPU控制器运算周期400ms。3. The operation cycle of DPU controller is 400ms.

按照图1实施例的方案接入后启动G1检测设备,启动信号源产生脉冲信号,记录波形如图6所示。According to the scheme of the embodiment in FIG. 1 , the G1 detection device is started after access, the signal source is started to generate a pulse signal, and the recorded waveform is shown in FIG. 6 .

如图6所示,CH1为输入通道即R1两端的电压信号,触发时间为t1时刻;CH2为输出通道R2两端的电压信号,接受的信号时刻为t2。根据Δt=t2-t1=458.75ms得到响应时间为458.75ms。即DCS的全响应时间为458.75ms。As shown in Figure 6, CH1 is the voltage signal at both ends of the input channel R1, and the trigger time is time t1 ; CH2 is the voltage signal at both ends of the output channel R2, and the received signal time is t2 . According to Δt=t 2 −t 1 =458.75ms, the response time is 458.75ms. That is, the full response time of DCS is 458.75ms.

Δt=AI采样滤波时间+DPU运算周期时间+AO输出转换时间。同时对于本次试验输出信号可以较为平稳,其响应变化的连续性较好。同时对于试验可以采用多次试验后进行算数平均,消除随机误差。Δt=AI sampling filter time+DPU operation cycle time+AO output conversion time. At the same time, the output signal of this test can be relatively stable, and the continuity of its response changes is better. At the same time, for the test, the arithmetic average can be used after multiple tests to eliminate random errors.

由以上实施例可以看出,本发明解决了DCS系统响应时间测试的难题,能够客观的检测系统的从接收信号、AD转换、信号处理、逻辑运算、到信号输出、DA转换全过程的响应时间。从而为评价DCS性能指标,提供一种可靠和广泛的测试手段。It can be seen from the above embodiments that the present invention solves the problem of DCS system response time test, and can objectively detect the response time of the whole process from receiving signal, AD conversion, signal processing, logic operation, to signal output, and DA conversion of the system. . Thus, a reliable and extensive test method is provided for evaluating DCS performance indicators.

以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1.一种DCS系统响应时间测试系统,其特征在于,包括:输入信号产生回路、输出信号采集回路以及信号检测设备;1. a DCS system response time test system, is characterized in that, comprises: input signal generation loop, output signal acquisition loop and signal detection equipment; 所述输入信号产生回路与DCS系统的AI卡件连接,所述输入信号产生回路包括:用于产生信号的信号源以及第一电阻;The input signal generating circuit is connected to the AI card of the DCS system, and the input signal generating circuit includes: a signal source for generating a signal and a first resistor; 所述输出信号采集回路与所述DCS系统的AO卡件或者DO卡件连接,所述输出信号采集回路包括:第二电阻;The output signal acquisition circuit is connected to the AO card or the DO card of the DCS system, and the output signal acquisition circuit includes: a second resistor; 所述信号检测设备,用于检测所述第一电阻两侧的电压得到第一电压信号,以及检测所述第二电阻两侧的电压得到第二电压信号,进而根据所述第一电压信号和所述第二电压信号确定所述DCS系统的响应时间。The signal detection device is used to detect the voltage on both sides of the first resistor to obtain a first voltage signal, and detect the voltage on both sides of the second resistor to obtain a second voltage signal, and then according to the first voltage signal and The second voltage signal determines the response time of the DCS system. 2.根据权利要求1所述的DCS系统响应时间测试系统,其特征在于,所述信号检测设备,具体用于根据所述第一电压信号确定输入信号触发时刻,以及根据所述第二电压信号确定输出信号响应时刻,进而用所述输出信号响应时刻减去所述输入信号触发时刻得到所述DCS系统的响应时间。2 . The DCS system response time test system according to claim 1 , wherein the signal detection device is specifically configured to determine the triggering moment of the input signal according to the first voltage signal, and to determine the trigger time of the input signal according to the second voltage signal. 3 . Determine the response time of the output signal, and then subtract the trigger time of the input signal from the output signal response time to obtain the response time of the DCS system. 3.根据权利要求1所述的DCS系统响应时间测试系统,其特征在于,所述输入信号产生回路上设置有电源或者所述输入信号产生回路连接所述DCS系统中的电源。3 . The DCS system response time testing system according to claim 1 , wherein a power supply is provided on the input signal generating circuit or the input signal generating circuit is connected to a power supply in the DCS system. 4 . 4.根据权利要求1所述的DCS系统响应时间测试系统,其特征在于,所述输出信号采集回路上设置有电源或者所述输出信号采集回路连接所述DCS系统中的电源。4 . The DCS system response time testing system according to claim 1 , wherein a power supply is provided on the output signal acquisition loop or the output signal acquisition loop is connected to a power supply in the DCS system. 5 . 5.根据权利要求1所述的DCS系统响应时间测试系统,其特征在于,所述信号源用于产生脉冲信号。5. The DCS system response time testing system according to claim 1, wherein the signal source is used to generate a pulse signal. 6.一种DCS系统响应时间测试系统,其特征在于,包括:输入信号产生回路、输出信号采集回路以及信号检测设备;6. A DCS system response time test system, characterized in that, comprising: an input signal generation loop, an output signal acquisition loop and a signal detection device; 所述输入信号产生回路与DCS系统的DI卡件连接,所述输入信号产生回路包括:开关以及触发电路,所述触发电路用于控制所述开关的通断以产生通断信号;The input signal generating circuit is connected to the DI card of the DCS system, and the input signal generating circuit includes a switch and a trigger circuit, and the trigger circuit is used to control the on-off of the switch to generate the on-off signal; 所述输出信号采集回路与所述DCS系统的AO卡件或者DO卡件连接,所述输出信号采集回路包括:第二电阻;The output signal acquisition circuit is connected to the AO card or the DO card of the DCS system, and the output signal acquisition circuit includes: a second resistor; 所述信号检测设备,用于检测所述开关两侧的电压得到第一电压信号,以及检测所述第二电阻两侧的电压得到第二电压信号,进而根据所述第一电压信号和所述第二电压信号确定所述DCS系统的响应时间。The signal detection device is used for detecting the voltage on both sides of the switch to obtain a first voltage signal, and detecting the voltage on both sides of the second resistor to obtain a second voltage signal, and then according to the first voltage signal and the The second voltage signal determines the response time of the DCS system. 7.根据权利要求6所述的DCS系统响应时间测试系统,其特征在于,所述信号检测设备,具体用于根据所述第一电压信号确定输入信号触发时刻,以及根据所述第二电压信号确定输出信号响应时刻,进而用所述输出信号响应时刻减去所述输入信号触发时刻得到所述DCS系统的响应时间。7 . The DCS system response time test system according to claim 6 , wherein the signal detection device is specifically configured to determine the triggering moment of the input signal according to the first voltage signal, and to determine the trigger time of the input signal according to the second voltage signal. 8 . Determine the response time of the output signal, and then subtract the trigger time of the input signal from the output signal response time to obtain the response time of the DCS system. 8.根据权利要求6所述的DCS系统响应时间测试系统,其特征在于,所述输入信号产生回路上设置有电源或者所述输入信号产生回路连接所述DCS系统中的电源。8 . The DCS system response time testing system according to claim 6 , wherein a power supply is provided on the input signal generating circuit or the input signal generating circuit is connected to a power supply in the DCS system. 9 . 9.根据权利要求6所述的DCS系统响应时间测试系统,其特征在于,所述输出信号采集回路上设置有电源或者所述输入信号产生回路连接所述DCS系统中的电源。9 . The DCS system response time testing system according to claim 6 , wherein the output signal acquisition loop is provided with a power supply or the input signal generation loop is connected to the power supply in the DCS system. 10 . 10.根据权利要求6所述的DCS系统响应时间测试系统,其特征在于,所述开关为高速可控硅开关器件。10 . The DCS system response time test system according to claim 6 , wherein the switch is a high-speed thyristor switch device. 11 .
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