CN113267701A - Electrical equipment abnormal signal capture device - Google Patents
Electrical equipment abnormal signal capture device Download PDFInfo
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- CN113267701A CN113267701A CN202110665065.8A CN202110665065A CN113267701A CN 113267701 A CN113267701 A CN 113267701A CN 202110665065 A CN202110665065 A CN 202110665065A CN 113267701 A CN113267701 A CN 113267701A
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- 230000002159 abnormal effect Effects 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims abstract description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
- G05B19/0425—Safety, monitoring
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides an abnormal signal capturing device of electrical equipment, which comprises a singlechip, a storage module, an AD conversion module and a digital I/O module, wherein the singlechip is used for storing the abnormal signal; the AD conversion module is used for collecting and processing an input voltage signal, a current signal, a frequency signal and a temperature signal; the digital I/O module is used for processing digital control signal acquisition; a transformer; the AD conversion module is isolated from the input voltage by the transformer; a linear optical coupler; the linear optocoupler is provided with three interfaces which are respectively connected with input current, a frequency signal and a temperature signal; the AD conversion module is isolated from the input current, the frequency signal and the temperature signal by the linear optocoupler; a relay; the digital I/O module is isolated from the digital control signal by the relay; the input equipment is connected with the single chip microcomputer system and used for inputting data; and the display screen is connected with the singlechip and used for displaying a system interface.
Description
Technical Field
The invention relates to an abnormal signal capturing device for electrical equipment.
Background
At present, industrial electrical equipment of production enterprises is more and more complex to use, certain difficulty is brought to maintenance, for example, a water pump frequency conversion cabinet, a tape machine control cabinet and the like occasionally have an outlet trip phenomenon due to device failure or line contact failure, but the outlet trip phenomenon can be recovered immediately after the trip, and problems such as the signal passing at the moment of the trip is slightly lost, the problems are recurrent and have contingency, electrical maintenance personnel are difficult to find the fault point, so that the risk of repeated trip is caused, and the loss is very disastrous.
Disclosure of Invention
The invention aims to overcome the defects and provide an abnormal signal capturing device for electrical equipment.
The invention adopts the following technical scheme:
an electrical equipment abnormal signal capturing device comprises a single chip microcomputer, a storage module, an AD conversion module and a digital I/O module; the AD conversion module is used for collecting and processing an input voltage signal, a current signal, a frequency signal and a temperature signal; the digital I/O module is used for processing digital control signal acquisition; a transformer; the AD conversion module is isolated from the input voltage by the transformer; a linear optical coupler; the linear optocoupler is provided with three interfaces which are respectively connected with input current, a frequency signal and a temperature signal; the AD conversion module is isolated from the input current, the frequency signal and the temperature signal by the linear optocoupler; a relay; the digital I/O module is isolated from the digital control signal by the relay; the input equipment is connected with the single chip microcomputer and used for inputting data; and the display screen is connected with the singlechip and used for displaying a system interface.
Preferably, the single chip microcomputer is powered by a battery.
Preferably, the single chip microcomputer is an STM32 single chip microcomputer.
Preferably, the display screen is a touch screen capable of human-computer interaction.
Preferably, the input device is a mouse and a keyboard.
Preferably, the storage module is a FLASH memory.
The invention has the beneficial effects that: the invention adopts the battery to supply power, thereby achieving the purposes of convenient carrying and avoiding the phenomenon that the detection process is interfered by equipment, simultaneously, the monitoring value can be preset, and the monitoring range comprises analog signals such as digital signals, voltage, current and the like; the invention has quick monitoring response to signals, can store and analyze data for a long time, and effectively solves the problem that maintenance personnel checks occasional and intermittent faults in the maintenance process.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a schematic representation of the use of the present invention.
Detailed Description
In order to make the purpose and technical solution of the present invention clearer, the present invention is further described with reference to the accompanying drawings and embodiments:
an abnormal signal capturing device for electrical equipment shown in fig. 1-2 comprises a single chip microcomputer 1, a digital signal processing module and a digital signal processing module, wherein the single chip microcomputer 1 comprises a storage module (not shown in the figure), an AD conversion module 2 and a digital I/O module 3; the AD conversion module 2 is used for collecting and processing an input voltage signal, a current signal, a frequency signal and a temperature signal; the digital I/O module 3 is used for processing digital control signal acquisition; a transformer 5; the AD conversion module 2 is isolated from the input voltage by the transformer 5; a linear optocoupler 4; the linear optocoupler 4 is provided with three interfaces which are respectively connected with input current, a frequency signal and a temperature signal; the AD conversion module 2 is isolated from the input current, the frequency signal and the temperature signal by the linear optocoupler 4; a relay 6; the digital I/O module 3 and the digital control signal are isolated by the relay 6; the input device 7 is connected with the singlechip 1 and used for inputting data; and the display screen 8 is connected with the singlechip 1 and is used for displaying a system interface.
Preferably, the single chip microcomputer is powered by a battery.
Preferably, the single chip microcomputer is an STM32 single chip microcomputer.
Preferably, the display screen is a touch screen capable of human-computer interaction.
Preferably, the input device is a mouse and a keyboard.
Preferably, the storage module is a FLASH memory.
The using method of the invention is as follows, as shown in figure 2, the incoming line of the frequency conversion cabinet passes through the transformer 5 and then is connected with the AD conversion module 2 to monitor the voltage; the incoming line of the machine side box is connected with the AD conversion module 2 after passing through the linear optocoupler 4, and the running frequency is monitored; the frequency conversion cabinet temperature detection line is connected with the AD conversion module 2 after passing through the linear optocoupler 4, and is used for monitoring the temperature of the frequency conversion cabinet; the incoming line of the working equipment is connected with a linear optocoupler 4 through a current transformer and then connected with an AD conversion module 2, and the current incoming line of the working equipment is detected; the DCS line is connected with the digital I/O module 3 after passing through the relay 6, and monitors a remote control signal; the signal is captured when tripping is carried out, all data are stored in the storage device, and maintenance personnel can judge that the reason of tripping is DCS signal problem, voltage problem, frequency problem, current problem or over-high temperature problem according to the data, and detect and maintain pertinently.
The field implementation is that the probe is clamped ON a corresponding node, and the specified digital signals, current, voltage and the like are programmed and set, for example, if the input voltage of a frequency converter is more than 380, the control signal is ON, the frequency output is 33HZ, and the current is less than 220A, the signals can be set and monitored in the instrument; when the equipment is accidentally tripped out, maintenance personnel can judge the problem points needing to be detected according to the electrical control principle of the equipment and the fault phenomenon. For example, if the frequency is less than 30HZ, the values of the nodes are recorded and stored, an alarm is given to prompt that equipment has tripped, maintenance personnel arrives at the site, the DCS control signal is turned OFF briefly from the monitoring signal, and the DCS signal needs to be turned ON from the schematic diagram, so that the abnormality of the DCS signal is detected, and the detection and maintenance are performed ON the problem.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.
Claims (6)
1. An electrical equipment abnormality signal capturing device characterized by comprising:
the singlechip comprises a storage module, an AD conversion module and a digital I/O module; the AD conversion module is used for collecting and processing an input voltage signal, a current signal, a frequency signal and a temperature signal; the digital I/O module is used for processing digital control signal acquisition;
a transformer; the AD conversion module is isolated from the input voltage by the transformer;
a linear optical coupler; the linear optocoupler is provided with three interfaces which are respectively connected with input current, a frequency signal and a temperature signal; the AD conversion module is isolated from the input current, the frequency signal and the temperature signal by the linear optocoupler;
a relay; the digital I/O module is isolated from the digital control signal by the relay;
the input equipment is connected with the single chip microcomputer and used for inputting data;
and the display screen is connected with the singlechip and used for displaying a system interface.
2. The apparatus for catching an abnormal signal of an electrical device according to claim 1, wherein:
the single chip microcomputer is powered by a battery.
3. The apparatus for catching an abnormal signal of an electrical device according to claim 1, wherein:
the singlechip is an STM32 singlechip.
4. The apparatus for catching an abnormal signal of an electrical device according to claim 1, wherein:
the display screen is a touch screen capable of performing human-computer interaction.
5. The apparatus for catching an abnormal signal of an electrical device according to claim 1, wherein:
the input device is a mouse and a keyboard.
6. The apparatus for catching an abnormal signal of an electrical device according to claim 1, wherein:
the storage module is a FLASH FLASH memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110665065.8A CN113267701A (en) | 2021-06-16 | 2021-06-16 | Electrical equipment abnormal signal capture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110665065.8A CN113267701A (en) | 2021-06-16 | 2021-06-16 | Electrical equipment abnormal signal capture device |
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| Publication Number | Publication Date |
|---|---|
| CN113267701A true CN113267701A (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110665065.8A Pending CN113267701A (en) | 2021-06-16 | 2021-06-16 | Electrical equipment abnormal signal capture device |
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| CN (1) | CN113267701A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872067A (en) * | 2017-02-21 | 2017-06-20 | 焦海军 | A kind of temperature isolation Acquisition Circuit |
| CN207801461U (en) * | 2018-02-10 | 2018-08-31 | 中瑞鸿电气有限公司 | Distribution transformer intelligent measuring and control device |
| CN108732434A (en) * | 2017-04-18 | 2018-11-02 | 北京迈驰电气技术有限公司 | A kind of low-voltage intelligent monitoring terminal |
| CN216926933U (en) * | 2021-06-16 | 2022-07-08 | 福建马坑矿业股份有限公司 | Electrical equipment abnormal signal capture device |
-
2021
- 2021-06-16 CN CN202110665065.8A patent/CN113267701A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872067A (en) * | 2017-02-21 | 2017-06-20 | 焦海军 | A kind of temperature isolation Acquisition Circuit |
| CN108732434A (en) * | 2017-04-18 | 2018-11-02 | 北京迈驰电气技术有限公司 | A kind of low-voltage intelligent monitoring terminal |
| CN207801461U (en) * | 2018-02-10 | 2018-08-31 | 中瑞鸿电气有限公司 | Distribution transformer intelligent measuring and control device |
| CN216926933U (en) * | 2021-06-16 | 2022-07-08 | 福建马坑矿业股份有限公司 | Electrical equipment abnormal signal capture device |
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