技术领域technical field
本发明属于电量信号监测的技术领域，具体涉及一种直流信号监测仪。The invention belongs to the technical field of electricity signal monitoring, and in particular relates to a DC signal monitor.
背景技术Background technique
目前，电力系统内，在电力检修及日常维护的工作中，经常发现断路器有疑似偷跳的故障发生，偷跳是指断路器在没有操作、没有继电保护及安全自动装置动作的情况下的跳闸，因此，在故障排查的工作过程中需要一种设备来在线监测记录线路中的直流脉冲驱动信号。At present, in the power system, in the work of power maintenance and daily maintenance, it is often found that the circuit breaker has a fault that is suspected to be tripping. Therefore, in the process of troubleshooting, a device is needed to monitor and record the DC pulse driving signal in the line online.
发明内容Contents of the invention
本发明克服现有技术存在的不足，所要解决的技术问题为：提供一种能够获取线路中的电流信号，并将电流信号的时间、幅值等信息记录下来的直流信号监测仪。The present invention overcomes the deficiencies in the prior art, and the technical problem to be solved is: to provide a DC signal monitor capable of acquiring current signals in lines and recording information such as time and amplitude of the current signals.
为了解决上述技术问题，本发明采用的技术方案为：直流信号监测仪，包括：电流传感器：用于获取线路中的电流信号；模拟信号调理电路：与所述电流传感器连接，用于接收、处理所述电流传感器获取到的电流信号；模数转换电路：与所述模拟信号调理电路连接，用于将所述电流信号转换成对应的数字信号；数字信号处理电路：与所述模数转换电路连接，用于接收、处理所述模数转换电路传递来的数字信号，并将处理后的数字信号进行输出；人机交互模块：与所述数字信号处理电路连接，用于显示、查看电流信息；存储模块：与所述数字信号处理电路连接，用于记录电流信号的时间、幅值等信息；电源模块：分别与所述电流传感器、模拟信号调理电路、模数转换电路、数字信号处理电路、人机交互模块和存储模块连接，用于对整个监测仪进行供电。In order to solve the above technical problems, the technical solution adopted by the present invention is: a DC signal monitor, including: a current sensor: used to obtain the current signal in the line; an analog signal conditioning circuit: connected to the current sensor for receiving and processing The current signal obtained by the current sensor; the analog-to-digital conversion circuit: connected to the analog signal conditioning circuit for converting the current signal into a corresponding digital signal; digital signal processing circuit: connected to the analog-to-digital conversion circuit Connection, used to receive and process the digital signal transmitted by the analog-to-digital conversion circuit, and output the processed digital signal; human-computer interaction module: connected to the digital signal processing circuit, used to display and view current information ; Storage module: connected with the digital signal processing circuit, used to record information such as time and amplitude of the current signal; , the human-computer interaction module and the storage module are connected to supply power to the entire monitor.
优选地，所述监测仪还包括实时时钟电路：分别与所述数字信号处理电路和所述电源模块连接，用于为所述数字信号处理电路提供稳定的时间基准信息。Preferably, the monitor further includes a real-time clock circuit: connected to the digital signal processing circuit and the power supply module respectively, for providing stable time reference information for the digital signal processing circuit.
优选地，所述监测仪还包括时钟电池：与所述实时时钟电路连接，用于当所述电源模块停止供电时，为所述实时时钟电路提供备用电源。Preferably, the monitor further includes a clock battery: connected to the real-time clock circuit, for providing backup power for the real-time clock circuit when the power supply module stops supplying power.
优选地，所述存储模块包括：内置存储单元：用于记录电流信号的工作日志；扩展存储单元：用于记录电流信号的工作波形。Preferably, the storage module includes: a built-in storage unit: used to record the working log of the current signal; an extended storage unit: used to record the working waveform of the current signal.
优选地，所述电源模块包括：外部供电单元：用于为整个监测仪提供外部的交直流电源；内置电池单元：用于当所述外部供电单元停止供电时，为整个监测仪提供备用电源。Preferably, the power supply module includes: an external power supply unit: used to provide external AC and DC power for the entire monitoring instrument; a built-in battery unit: used to provide backup power for the entire monitoring instrument when the external power supply unit stops supplying power.
优选地，所述电流传感器为钳形电流传感器。Preferably, the current sensor is a clamp current sensor.
本发明与现有技术相比具有以下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
本发明中的直流信号监测仪，主要包括电流传感器、模拟信号调理电路、模数转换电路、数字信号处理电路、人机交互模块和存储模块，电流传感器获取线路中的电流信号后传递给模拟信号调理电路，模拟信号调理电路对接收到的电流信号进行处理，模数转换电路将处理后的电流信号转换成对应的数字信号，数字信号处理电路接收模数转换电路传递来的数字信号后对该数字信号进行处理，然后将处理后的数字信号通过人机交互模块进行显示、查看，同时，将电流信号的时间、幅值等信息记录在存储模块中；本发明中的监测仪可以监测线路中的直流脉冲信号，可在线连续工作，获取线路中的电流信号，并将电流信号的时间、幅值等信息记录下来，方便查询和分析。The DC signal monitor in the present invention mainly includes a current sensor, an analog signal conditioning circuit, an analog-to-digital conversion circuit, a digital signal processing circuit, a human-computer interaction module and a storage module, and the current sensor acquires the current signal in the line and transmits it to the analog signal Conditioning circuit, the analog signal conditioning circuit processes the received current signal, the analog-to-digital conversion circuit converts the processed current signal into a corresponding digital signal, and the digital signal processing circuit receives the digital signal from the analog-to-digital conversion circuit and converts it to The digital signal is processed, and then the processed digital signal is displayed and viewed through the human-computer interaction module. At the same time, information such as the time and amplitude of the current signal is recorded in the storage module; The DC pulse signal can work continuously online, obtain the current signal in the line, and record the time, amplitude and other information of the current signal, which is convenient for query and analysis.
附图说明Description of drawings
下面结合附图对本发明做进一步详细的说明。The present invention will be described in further detail below in conjunction with the accompanying drawings.
图1为本发明一实施例的结构示意图；Fig. 1 is the structural representation of an embodiment of the present invention;
图中：101为电流传感器，102为模拟信号调理电路，103为模数转换电路，104为数字信号处理电路，105为人机交互模块，106为存储模块，107为电源模块，201为实时时钟电路，301为时钟电池，1061为内置存储单元，1062为扩展存储单元，1071为外部供电单元，1072为内置电池单元。In the figure: 101 is a current sensor, 102 is an analog signal conditioning circuit, 103 is an analog-to-digital conversion circuit, 104 is a digital signal processing circuit, 105 is a human-computer interaction module, 106 is a storage module, 107 is a power supply module, and 201 is a real-time clock circuit , 301 is a clock battery, 1061 is a built-in storage unit, 1062 is an expansion storage unit, 1071 is an external power supply unit, and 1072 is a built-in battery unit.
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚，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，所描述的实施例是本发明的一部分实施例，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作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, rather than all embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention .
图1为本发明一实施例的结构示意图，如图1所示，直流信号监测仪，包括：Fig. 1 is a structural schematic diagram of an embodiment of the present invention, as shown in Fig. 1, the DC signal monitor includes:
电流传感器101：用于获取线路中的电流信号；Current sensor 101: used to obtain the current signal in the line;
进一步地，所述电流传感器101可为钳形电流传感器，方便在系统带电的情况下以非侵入的方式获取线路中的电流信号。Further, the current sensor 101 can be a clamp current sensor, which is convenient for acquiring the current signal in the line in a non-invasive manner when the system is charged.
模拟信号调理电路102：其输入端与所述电流传感器101的输出端连接，用于接收、处理所述电流传感器101获取到的电流信号。Analog signal conditioning circuit 102 : its input terminal is connected to the output terminal of the current sensor 101 , and is used for receiving and processing the current signal obtained by the current sensor 101 .
模数转换电路103：其输入端与所述模拟信号调理电路102的输出端连接，用于将所述电流信号转换成对应的数字信号。Analog-to-digital conversion circuit 103: its input terminal is connected to the output terminal of the analog signal conditioning circuit 102, and is used to convert the current signal into a corresponding digital signal.
数字信号处理电路104：其第一输入端与所述模数转换电路103的输出端连接，用于接收、处理所述模数转换电路103传递来的数字信号，并将处理后的数字信号进行输出。Digital signal processing circuit 104: its first input terminal is connected to the output terminal of the analog-to-digital conversion circuit 103, used to receive and process the digital signal transmitted by the analog-to-digital conversion circuit 103, and process the processed digital signal output.
人机交互模块105：其通讯端与所述数字信号处理电路104的第一通讯端连接，用于显示、查看电流信息。Human-computer interaction module 105: its communication terminal is connected with the first communication terminal of the digital signal processing circuit 104, and is used for displaying and viewing current information.
存储模块106：其通讯端与所述数字信号处理电路104的第二通讯端连接，用于记录电流信号的时间、幅值等信息；Storage module 106: its communication terminal is connected to the second communication terminal of the digital signal processing circuit 104, and is used to record information such as time and amplitude of the current signal;
进一步地，所述存储模块106可包括内置存储单元1061和扩展存储单元1062，所述内置存储单元1061用于记录电流信号的工作日志，所述扩展存储单元1062用于记录电流信号的工作波形；本实施例中的记录存储功能分日志和波形两部分同时工作，实现了信号记录的双保险和日志、波形的查看的多选择性，便于对信号性质的分析。Further, the storage module 106 may include a built-in storage unit 1061 and an extended storage unit 1062, the built-in storage unit 1061 is used to record the working log of the current signal, and the extended storage unit 1062 is used to record the working waveform of the current signal; The recording and storage function in this embodiment is divided into two parts: the log and the waveform to work at the same time, which realizes double insurance of signal recording and multiple options for viewing logs and waveforms, and facilitates the analysis of signal properties.
电源模块107：分别与所述电流传感器101的电源端、模拟信号调理电路102的电源端、模数转换电路103的电源端、数字信号处理电路104的电源端、人机交互模块105的电源端和存储模块106的电源端连接，用于对整个监测仪进行供电；Power supply module 107: respectively connected to the power supply terminal of the current sensor 101, the power supply terminal of the analog signal conditioning circuit 102, the power supply terminal of the analog-to-digital conversion circuit 103, the power supply terminal of the digital signal processing circuit 104, and the power supply terminal of the human-computer interaction module 105 It is connected to the power supply terminal of the storage module 106, and is used to supply power to the entire monitor;
进一步地，所述电源模块107可包括外部供电单元1071和内置电池单元1072，所述外部供电单元1071用于为整个监测仪提供外部的交直流电源，所述内置电池单元1072用于当所述外部供电单元1071停止供电时，为整个监测仪提供备用电源。Further, the power supply module 107 may include an external power supply unit 1071 and a built-in battery unit 1072, the external power supply unit 1071 is used to provide external AC and DC power for the entire monitoring instrument, and the built-in battery unit 1072 is used for when the When the external power supply unit 1071 stops supplying power, it provides backup power for the entire monitor.
更进一步地，所述监测仪还可包括实时时钟电路201，所述实时时钟电路201用于为所述数字信号处理电路104提供稳定的时间基准信息，其输出端与所述数字信号处理电路104的第二输入端连接，其电源端与所述电源模块107连接。Furthermore, the monitoring instrument can also include a real-time clock circuit 201, the real-time clock circuit 201 is used to provide stable time reference information for the digital signal processing circuit 104, and its output terminal is connected to the digital signal processing circuit 104 connected to the second input terminal, and its power supply terminal is connected to the power module 107 .
更进一步地，所述监测仪还可包括时钟电池301，所述时钟电池301的输出端与所述实时时钟电路201的电源端连接，用于当所述电源模块107停止供电时，为所述实时时钟电路201提供备用电源。Furthermore, the monitoring instrument may also include a clock battery 301, the output terminal of the clock battery 301 is connected to the power supply terminal of the real-time clock circuit 201, and is used to provide power for the The real-time clock circuit 201 provides backup power.
使用时，将需要监测的线路经过本直流信号监测仪的钳形电流传感器的钳口，根据需要采用外部交直流供电或内置电池供电，直流信号监测仪便可显示线路中的电流值情况，并可自动记录脉冲驱动信号的日志信息，将信号的波形信息存储到大容量的扩展存储卡中，通过按键操作可方便地查看已经记录的脉冲信号的时间、幅值等信息，具有突出的实质性特点和显著的进步。When in use, pass the line to be monitored through the jaws of the clamp current sensor of the DC signal monitor, and use external AC or DC power supply or built-in battery power supply as required, and the DC signal monitor can display the current value in the line, and It can automatically record the log information of the pulse driving signal, and store the waveform information of the signal in a large-capacity expansion memory card. It is convenient to view the time and amplitude of the recorded pulse signal through key operation, which has outstanding materiality. features and notable improvements.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.
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| CN201510492132.5ACN105092952A (en) | 2015-08-12 | 2015-08-12 | DC signal monitor |
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| CN201510492132.5ACN105092952A (en) | 2015-08-12 | 2015-08-12 | DC signal monitor |
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| CN105092952Atrue CN105092952A (en) | 2015-11-25 |
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| CN201510492132.5APendingCN105092952A (en) | 2015-08-12 | 2015-08-12 | DC signal monitor |
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| CN (1) | CN105092952A (en) |
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