CN109061422A - Electric instrument with fault electric arc detecting function - Google Patents
Electric instrument with fault electric arc detecting function Download PDFInfo
- Publication number
- CN109061422A CN109061422A CN201811075648.XA CN201811075648A CN109061422A CN 109061422 A CN109061422 A CN 109061422A CN 201811075648 A CN201811075648 A CN 201811075648A CN 109061422 A CN109061422 A CN 109061422A
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- electric arc
- fault electric
- arc detecting
- microprocessor
- fault
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- 238000010891 electric arc Methods 0.000 title claims abstract description 73
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Abstract
A kind of electric instrument with fault electric arc detecting function of the present invention, be connected in load circuit, including microprocessor, fault electric arc detecting module, communication module, relay control switch, for providing the clock chip, display screen and pin-saving chip of clock signal for electric instrument；Fault electric arc detecting module is used for physical quantity sampling analysis electrical in circuit, and warning message is sent when analyzing fault electric arc number and reaching alarm threshold value to microprocessor, the electrical parameters sampled are otherwise reached microprocessor；Microprocessor after receiving warning message for controlling display screen display alarm information and showing the electrical parameters sampled；Communication module is used to warning message and electrical parameters being uploaded to fire-fighting host to realize long-range monitoring；Relay control switch is used to control the unlatching of the relay in load circuit and is closed to realize fire-fighting link；Pin-saving chip is used to store the electrical parameters of the warning message and load circuit that are transmitted to microprocessor.
Description
Technical field
The invention belongs to technical field of fire control, more particularly to a kind of electric power instrument with fault electric arc detecting function
Table.
Background technique
Fault electric arc detection is a kind of novel circuit protection technology, compensates for overcurrent, release and short-circuit protection
Deficiency of the device in terms of Low voltage arc fault protection is the important link of low-voltage alternating-current power distribution network security protection system, simultaneously
And direct-current arc in the following direct-current grid, intelligent building, space flight electrical system and hybrid vehicle and its electrical load
The effective means of emergency protection, safeguards system safety, avoids electrical fire, attracts wide attention.Currently, national new round agriculture
Net transformation and upgrade engineering has been turned on, and Low voltage arc fault guard technology obtains constantly paying attention to and developing.Meanwhile with energy source interconnection
The rapid development of micro-capacitance sensor, smart grid under net and its frame, direct current and AC/DC fault electric arc detection technique become research
Emphasis.Fault electric arc detection device is the important directions of current low-voltage electrical apparatus research and development, has broad based growth prospect.
Summary of the invention
The purpose of the present invention is to provide a kind of electric instrument with fault electric arc detecting function,.
The present invention is to solve above-mentioned technical problem by following technical proposals:
The present invention provides a kind of electric instrument with fault electric arc detecting function, it is characterized in that, it is connected on load
In circuit, including microprocessor, fault electric arc detecting module, communication module, relay control switch, for being mentioned for electric instrument
For the clock chip, display screen and pin-saving chip of clock signal, the fault electric arc detecting module, communication module, relay
Device control switch, clock chip, display screen and pin-saving chip are electrically connected with microprocessor；
The fault electric arc detecting module is used to carry out sampling analysis to the electrical physical quantity in load circuit, is analyzing
Fault electric arc number sends a warning message to microprocessor when reaching alarm threshold value, will sample when analyzing no fault electric arc
To electrical parameters be transmitted to microprocessor；
The microprocessor is used to control display screen display alarm information after receiving warning message and display samples
Electrical parameters；
The communication module is used to the electrical parameters of warning message and load circuit being uploaded to fire-fighting host to realize
The system administration of long-range monitoring and electrical fire；
The relay control switch is used to control unlatching and the closure of the relay in load circuit to realize that fire-fighting joins
It is dynamic；
The pin-saving chip is used to store the electric parameter of the warning message and load circuit that are transmitted to microprocessor
Value.
Preferably, the microprocessor is used for after electric instrument power-up initializing, the spy of command detection fault electric arc is issued
It surveys whether module works normally, display screen is controlled when fault electric arc detecting module does not work normally and shows fault electric arc detection
The information of module failure, and the continuous detection that sends instructions under continuing, when fault electric arc detecting module is worked normally to failure electricity
Arc detecting module issues electrical parameters inquiry instruction, updates show value after being replied, if receiving fault electric arc detecting module
The warning message of upload, then stop current inquiry work in the form of interruption, completes fault electric arc alarm, and by warning message
It saves into pin-saving chip, after hand-reset or monitoring host computer issue reset instruction, continues electrical parameters inquiry
Work.
Preferably, the electric instrument further includes LED light and buzzer, the microprocessor is for receiving warning message
LED light is controlled afterwards and buzzer carries out sound-light alarm prompt.
Preferably, the communication module includes RS485 hardware interface and fire-fighting two lines bus hardware interface.
Preferably, the fault electric arc detecting module is fault electric arc detector.
Preferably, the microprocessor is MCU.
Preferably, the display screen is LCD display.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that:
The present invention has the electric instrument of fault electric arc detecting function, and instrument is small in size, is connected in load circuit, scene
Installation is succinct, easy to use.Fault electric arc detecting module in electric instrument, by the electricity such as voltage, electric current in load circuit
The sampling analysis for measuring parameter, judges whether the electric arc that breaks down, and transfer data to MCU, and MCU can be quickly to breaking down
Electric arc does the acoustic-optic indicator alarmed, and meets monitoring demand, and can do in real time to the electrical parameters such as voltage, electric current in load circuit
Update display.
Instrument has LCD display, acousto-optic hint, two kinds of digital communications, relay output, and fault electric arc hair may be implemented
Raw time, parameter show that sound-light alarm prompt reports monitoring host computer, relay linkage control.Digital communication agreement is supported
Modbus-RTU and fire-fighting two lines bus agreement, compatible a variety of fire-fighting hosts adapt to more complicated monitoring sites.
The present invention can show normal electrical parameter, do warning note to fault electric arc, there is digital communication, linkage control
Function.
Detailed description of the invention
Fig. 1 is the structural block diagram for the electric instrument that the present invention has fault electric arc detecting function.
Fig. 2 shows the schematic diagrames of electric instrument upper connecting terminal.
Fig. 3 shows electric instrument scene actual use connected mode schematic diagram.
Fig. 4 is the electric instrument internal fault arc detection module workflow that the present invention has fault electric arc detecting function
Figure.
Fig. 5 is the work flow diagram for the electric instrument main body that the present invention has fault electric arc detecting function.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, being connected on load the present embodiment provides a kind of electric instrument with fault electric arc detecting function
In circuit, including microprocessor 1, fault electric arc detecting module 2, communication module 3, relay control switch 4, for be electric power instrument
Table provides the clock chip 5 of clock signal, display screen 6, pin-saving chip 7, LED light 8, buzzer 9 and for being electric power instrument
Table power supply power module 10, the fault electric arc detecting module 2, communication module 3, relay control switch 4, clock chip 5,
Display screen 6, pin-saving chip 7, LED light 8, buzzer 9 and power module 10 are electrically connected with microprocessor 1.
Wherein, the microprocessor 1 is MCU, and MCU selects STM32FRC103RC chip；The fault electric arc detecting module
2 be fault electric arc detector；The communication module 3 includes RS485 hardware interface and fire-fighting two lines bus hardware interface, is supported respectively
Modebus-RTU communication protocol and fire-fighting two line communication agreement can connect fire-fighting host by any communication interface, realize remote
The detection of journey fault electric arc；The display screen 6 is LCD display.
See that Fig. 4, the fault electric arc detecting module 2 are used to carry out sampling analysis to the electrical physical quantity in load circuit,
A warning message is sent when analyzing fault electric arc number and reaching alarm threshold value to microprocessor 1, is analyzing no failure electricity
The electrical parameters sampled are transmitted to microprocessor 1 when arc.
The microprocessor 1 is used to control 6 display alarm information of display screen after receiving warning message, while controlling LED
Lamp and buzzer carry out sound-light alarm prompt；The microprocessor 1 is also used to show the electrical parameters sampled.
The communication module 3 is used to the electrical parameters of warning message and load circuit being uploaded to fire-fighting host to realize
The system administration of long-range monitoring and electrical fire；
The relay control switch 4 is used to control unlatching and the closure of the relay in load circuit to realize that fire-fighting joins
It is dynamic.
The pin-saving chip 7 is used to store the electrical ginseng of the warning message and load circuit that are transmitted to microprocessor 1
Numerical value.
See that Fig. 5, the microprocessor 1 are used for after electric instrument power-up initializing, issues the spy of command detection fault electric arc
It surveys whether module 1 works normally, display screen is controlled when fault electric arc detecting module 1 does not work normally and shows that fault electric arc is visited
The information of module failure, and the continuous detection that sends instructions under continuing are surveyed, when fault electric arc detecting module 1 is worked normally to failure
Arc detection module issues electrical parameters inquiry instruction, updates show value after being replied.If receiving fault electric arc detection
The fault electric arc warning message that module 1 uploads then stops current inquiry work in the form of interruption, completes fault electric arc alarm
Related work, comprising: LCD is shown and acousto-optic hint, and warning message is saved into pin-saving chip 7, until multiple manually
After position or monitoring host computer issue reset instruction, continues electric parameter and inquire work.
Electric instrument with fault electric arc detecting function of the invention, electric instrument are connected in load circuit, internal
Fault electric arc detecting module in real time to the electrical physical quantity sampling analysis such as the voltage of load circuit, electric current, by electrical parameters
It is transferred to MCU, and judges whether fault electric arc number reaches alarm threshold value.Electric instrument can be used as putting down per se with LCD display
Electrical parameter real-time display when Shi Huilu is normal, it is also possible to which the alarm indication that the electric arc that breaks down is is equipped with simultaneously
The prompt of the sound-light alarm of LED light and buzzer.According to setting, electric instrument itself can be operated by relay control switch 4
Relay closure and opening, realize fire-fighting link.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (7)
1. a kind of electric instrument with fault electric arc detecting function, which is characterized in that it is connected in load circuit, including micro-
Processor, fault electric arc detecting module, communication module, relay control switch, for providing clock signal for electric instrument
Clock chip, display screen and pin-saving chip, the fault electric arc detecting module, communication module, relay control switch, when
Clock chip, display screen and pin-saving chip are electrically connected with microprocessor；
The fault electric arc detecting module is used to carry out sampling analysis to the electrical physical quantity in load circuit, is out of order in analysis
Electric arc number sends a warning message to microprocessor when reaching alarm threshold value, will sample when analyzing no fault electric arc
Electrical parameters are transmitted to microprocessor；
The microprocessor after receiving warning message for controlling display screen display alarm information and showing the electricity sampled
Gas parameter value；
The communication module is used to the electrical parameters of warning message and load circuit being uploaded to fire-fighting host long-range to realize
The system administration of monitoring and electrical fire；
The relay control switch is used to control the unlatching of the relay in load circuit and is closed to realize fire-fighting link；
The pin-saving chip is used to store the electrical parameters of the warning message and load circuit that are transmitted to microprocessor.
2. as described in claim 1 with the electric instrument of fault electric arc detecting function, which is characterized in that the microprocessor
For after electric instrument is powered on and initialized, issuing whether command detection fault electric arc detecting module works normally, in failure electricity
Display screen is controlled when arc detecting module does not work normally and shows the information of fault electric arc detecting module failure, and is persistently issued
Instruction constantly detection, issues electrical parameters inquiry to fault electric arc detecting module when fault electric arc detecting module is worked normally
Instruction, updates show value after being replied, if the warning message of fault electric arc detecting module upload is received, in the form of interruption
Stop current inquiry work, fault electric arc alarm is completed, and warning message is saved into pin-saving chip, until manual
After reset or monitoring host computer issue reset instruction, continues electrical parameters and inquire work.
3. as described in claim 1 with the electric instrument of fault electric arc detecting function, which is characterized in that the electric instrument
It further include LED light and buzzer, the microprocessor is used to control LED light after receiving warning message and buzzer carries out acousto-optic
Warning note.
4. as described in claim 1 with the electric instrument of fault electric arc detecting function, which is characterized in that the communication module
Including RS485 hardware interface and fire-fighting two lines bus hardware interface.
5. as described in claim 1 with the electric instrument of fault electric arc detecting function, which is characterized in that the fault electric arc
Detecting module is fault electric arc detector.
6. as described in claim 1 with the electric instrument of fault electric arc detecting function, which is characterized in that the microprocessor
For MCU.
7. as described in claim 1 with the electric instrument of fault electric arc detecting function, which is characterized in that the display screen is
LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075648.XA CN109061422A (en) | 2018-09-14 | 2018-09-14 | Electric instrument with fault electric arc detecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075648.XA CN109061422A (en) | 2018-09-14 | 2018-09-14 | Electric instrument with fault electric arc detecting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109061422A true CN109061422A (en) | 2018-12-21 |
Family
ID=64761691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811075648.XA Pending CN109061422A (en) | 2018-09-14 | 2018-09-14 | Electric instrument with fault electric arc detecting function |
Country Status (1)
| Country | Link |
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| CN (1) | CN109061422A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112435429A (en) * | 2020-11-04 | 2021-03-02 | 宇消安全科技(上海)有限公司 | Electrical fire monitoring and early warning management system based on Internet of things |
| CN116073521A (en) * | 2023-02-28 | 2023-05-05 | 浙江兆芯电气科技有限公司 | Arc extinguishing type intelligent safe electricity utilization device |
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Cited By (2)
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| CN116073521A (en) * | 2023-02-28 | 2023-05-05 | 浙江兆芯电气科技有限公司 | Arc extinguishing type intelligent safe electricity utilization device |
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