CN105372550A - Intelligent communication power source monitoring device - Google Patents
Intelligent communication power source monitoring device Download PDFInfo
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- CN105372550A CN105372550A CN201510909626.9A CN201510909626A CN105372550A CN 105372550 A CN105372550 A CN 105372550A CN 201510909626 A CN201510909626 A CN 201510909626A CN 105372550 A CN105372550 A CN 105372550A
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- 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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- 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
- G01R31/40—Testing power supplies
Abstract
The invention discloses an intelligent communication power source monitoring device. The device comprises an analog sampling processor, an A/D converter, a single-chip microcomputer processing system, a keyboard input unit, a clock signal unit, an alarm, a communication interface, a storage unit and an upper computer. According to the intelligent communication power source monitoring device, advanced Hall sampling technologies are adopted, an analogy comparison circuit is utilized; front-end processing is performed on signals; a voltage value corresponding to load change is outputted; A/D conversion is performed on the voltage value; digital signals are transmitted to the microcomputer for further analysis and processing; functions such as fault analysis and comparison, judgment, measurement, display, storage and signal remote transmission can be realized; and a remote centralized control center can obtain abnormal information timely and perform safety maintenance processing. The intelligent communication power source monitoring device is reasonable in design and can monitor communication power source lines; the intelligent communication power source monitoring device can perform fast and efficient warning when a fault occurs; and therefore, with the intelligent communication power source monitoring device adopted, the safety and stability of an electric power communication system can be effectively improved.
Description
Technical field
The present invention relates to communication apparatus research field, particularly relate to a kind of intelligent communication electrical power monitoring device.
Background technology
In generating plant, transformer station, a large amount of traffic orders, service data etc. are had to need mutual transmission, complete so mutual transmission, then be unable to do without 48V communication power supply, no matter this communication power supply is the linear power supply adopting civil power step-down, rectification, filtering, voltage stabilizing to convert, or through the Switching Power Supply that the higher-order of oscillation is converted, all make a difference height, the feature that cost is high, simultaneously because of load weight, branched line is many, and the phenomenon of the failure being subject to impacting short circuit and moist ground connection happens occasionally.
In the prior art, when being out of order, mainly by manually operating a switch, the mode of power-off one by one carrys out trouble-shooting circuit, so both very complicated, and causing again regular link to be subject to involving impact, is very improper.
In sum, present inventor, in the process realizing invention technical scheme in the embodiment of the present application, finds that above-mentioned technology at least exists following technical matters:
In the prior art, existing communication power supply fault detection method exists, and detection efficiency is lower, easily causes regular link to be subject to involving the technical matters of impact.
Summary of the invention
The invention provides a kind of intelligent communication electrical power monitoring device, solve existing communication power supply fault detection method to exist, detection efficiency is lower, regular link is easily caused to be subject to involving the technical matters of impact, achieve communication power supply monitoring device reasonable in design, can effectively monitor communication power supply circuit, when a failure occurs, can report to the police by carrying out rapidly and efficiently, effectively improve the technique effect of the security and stability of power communication system.
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of intelligent communication electrical power monitoring device, and described device comprises:
Analog sampling processor, A/D converter, scm managing system, key input unit, clock signal unit, alarm, communication interface, storage unit, host computer, wherein, described analog sampling processor is used for monitoring the test line of communication power supply, and obtains analog voltage signal; Described A/D converter is used for the analog voltage signal of acquisition to be converted to digital signal; Described clock signal unit is for generation of clock signal; Described key input unit is used for input control order; Described scm managing system is used for when the dual signal of analog sampling processor and key input unit is after A/D changes, carry out computational analysis and process judgement, it judges result, alarm equipment alarm is sent on one tunnel, another road sends host computer to signal and processes, and passes the signal along on grid check for centralized control center supervisor through communication interface.
Wherein, described analog sampling processor specifically comprises: alterating and direct current source module, sensor assembly, multilevel iudge module, analog output module, wherein, described alterating and direct current source module is used for AC power rectification is that direct supply is for described analog sampling processor; Described sensor assembly for gathering the current changing signal of communication power supply test line, and by the signal transmission that collects to multilevel iudge module; Described multilevel iudge module compares according to the signal collected, if meet comparison rule, then output voltage signal is to described analog output module, and the signal that described analog output module comes according to the transmission of multilevel iudge module generates analog voltage signal.
Wherein, described alterating and direct current source module is specially: by 220V AC power from 1., 2. terminal introduce, through K switch 1, insurance BX sends transformer B1 step-down to, B1 secondary centre tap, as publicly; Diode D1-D4 completes positive and negative power rectifier; D1, D3 output terminal is in parallel, and connect input end 1 pin that three rectify voltage stabilizer WY1,3 pin of WY1 connect publicly, and 2 pin of WY1 export positive supply; D2, D4 input end is in parallel, and connect input end 3 pin that three ends bear voltage stabilizer WY2,1 pin of WY2 connects publicly, and 2 pin of WY2 export negative supply; The filtering that electric capacity C1, C2, C3, C4 do three terminal regulator input respectively, export; Light emitting diode Fg1 and resistance R1 connects, and does working power instruction.
Wherein, described sensor assembly specifically comprises: Hall current sampling thief HR, load L, artifical resistance Rd1, artifical resistance Rd2, wherein, described Hall current sampling thief comprises: base disk, described base disk is placed with sensor, described sensor and described base disk are equipped with fixed orifice, instrument connection is provided with in the middle part of described sensor, tested AC line is monitored through described instrument connection, described covers disposed on sensor has anode connection terminal a, negative pole link b, sampled signal output terminal c, earth terminal d; Wherein, the anode connection terminal a of described Hall current sampling thief HR is connected with the positive pole of described alterating and direct current source module, the negative pole link b of described Hall current sampling thief HR is connected with load L and is connected with the negative pole of described alterating and direct current source module afterwards, artifical resistance Rd1 and artifical resistance Rd2 is in parallel with described load L after connecting, described sampled signal output terminal c and described multilevel iudge model calling.
Wherein, described multilevel iudge module is specially: resistance R2 and voltage stabilizing diode WY3 connects, and forms reference voltage, and is access to inverting input 2 pin; Resistance R3, R4 connect, and form working point, and are access to in-phase input end 3 pin, and at homophase, end of oppisite phase form multilevel iudge module in conjunction with integrated operational amplifier circuit, the output terminal of described multilevel iudge module is connected with potentiometer W1.
Wherein, one end of the potentiometer W1 of described analog output module is connected with the output terminal of described multilevel iudge module, through the adjustment of potentiometer, at the corresponding load variations output voltage signal in moving contact OUT place, the other end of potentiometer connect with resistance R5 after ground connection.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
Owing to have employed, intelligent communication electrical power monitoring device is designed to comprise: analog sampling processor, A/D converter, scm managing system, key input unit, clock signal unit, alarm, communication interface, storage unit, host computer, wherein, described analog sampling processor is used for monitoring the test line of communication power supply, and obtains analog voltage signal, described A/D converter is used for the analog voltage signal of acquisition to be converted to digital signal, described clock signal unit is for generation of clock signal, described key input unit is used for input control order, described scm managing system is used for when the dual signal of analog sampling processor and key input unit is after A/D changes, carry out computational analysis and process judgement, it judges result, and alarm equipment alarm is sent on a road, and another road sends host computer to signal and processes, pass the signal along on grid for the technical scheme that centralized control center supervisor checks through communication interface, that is, first analyze, time normal, relevant instrumentation table meter is devoted oneself to work, and load current is relatively stable, when a failure occurs, no matter be ground connection or short circuit, capital makes electric current change, and it is most for increasing, therefore emphasis is monitored load current, time normal, device maintains the original state, time abnormal, device judges after testing and can send sound and light signal, warning message is provided to operations staff, in order to immediate analysis process, the generation of minimizing accident and expansion, have employed advanced Hall Sampling techniques, and be provided with analog comparator, signal is done front-end processing, and export the magnitude of voltage of corresponding load variations, this magnitude of voltage is changed through A/D again, again digital signal is sent to micro computer and be further analyzed process, and realize fault analysis and compare, judge, metering, display, the functions such as storage and the signal is far passed, and realize distant place centralized control center and can obtain abnormal information in time, make security maintenance process, increase substantially intelligent management level, so, efficiently solve existing communication power supply fault detection method to exist, detection efficiency is lower, regular link is easily caused to be subject to involving the technical matters of impact, and then it is reasonable in design to achieve communication power supply monitoring device, can effectively monitor communication power supply circuit, when a failure occurs, can report to the police by carrying out rapidly and efficiently, the technique effect of the security and stability of effective raising power communication system.
Accompanying drawing explanation
Fig. 1 is the structural representation of intelligent communication electrical power monitoring device in the embodiment of the present application;
Fig. 2 is the structural representation of Hall current sampling thief in the embodiment of the present application;
Fig. 3 is current sampled analogue circuit diagram in the embodiment of the present application;
Fig. 4 is communication power supply load current observation circuit schematic diagram in the embodiment of the present application;
Fig. 5 is communication power supply monitoring device monitoring, alarming schematic flow sheet in the embodiment of the present application;
Wherein, the monitored DC line of 1-, 2-Hall element, 3-instrument connection, 4-terminals, 5-base disk, 6-fixed orifice.
Embodiment
The invention provides a kind of intelligent communication electrical power monitoring device, solve existing communication power supply fault detection method to exist, detection efficiency is lower, regular link is easily caused to be subject to involving the technical matters of impact, achieve communication power supply monitoring device reasonable in design, can effectively monitor communication power supply circuit, when a failure occurs, can report to the police by carrying out rapidly and efficiently, effectively improve the technique effect of the security and stability of power communication system.
Technical scheme during the application implements is for solving the problems of the technologies described above.General thought is as follows:
Have employed and intelligent communication electrical power monitoring device is designed to comprise: analog sampling processor, A/D converter, scm managing system, key input unit, clock signal unit, alarm, communication interface, storage unit, host computer, wherein, described analog sampling processor is used for monitoring the test line of communication power supply, and obtains analog voltage signal, described A/D converter is used for the analog voltage signal of acquisition to be converted to digital signal, described clock signal unit is for generation of clock signal, described key input unit is used for input control order, described scm managing system is used for when the dual signal of analog sampling processor and key input unit is after A/D changes, carry out computational analysis and process judgement, it judges result, and alarm equipment alarm is sent on a road, and another road sends host computer to signal and processes, pass the signal along on grid for the technical scheme that centralized control center supervisor checks through communication interface, that is, first analyze, time normal, relevant instrumentation table meter is devoted oneself to work, and load current is relatively stable, when a failure occurs, no matter be ground connection or short circuit, capital makes electric current change, and it is most for increasing, therefore emphasis is monitored load current, time normal, device maintains the original state, time abnormal, device judges after testing and can send sound and light signal, warning message is provided to operations staff, in order to immediate analysis process, the generation of minimizing accident and expansion, have employed advanced Hall Sampling techniques, and be provided with analog comparator, signal is done front-end processing, and export the magnitude of voltage of corresponding load variations, this magnitude of voltage is changed through A/D again, again digital signal is sent to micro computer and be further analyzed process, and realize fault analysis and compare, judge, metering, display, the functions such as storage and the signal is far passed, and realize distant place centralized control center and can obtain abnormal information in time, make security maintenance process, increase substantially intelligent management level, so, efficiently solve existing communication power supply fault detection method to exist, detection efficiency is lower, regular link is easily caused to be subject to involving the technical matters of impact, and then it is reasonable in design to achieve communication power supply monitoring device, can effectively monitor communication power supply circuit, when a failure occurs, can report to the police by carrying out rapidly and efficiently, the technique effect of the security and stability of effective raising power communication system.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.
Embodiment:
In an embodiment, provide a kind of intelligent communication electrical power monitoring device, please refer to Fig. 1-Fig. 5, described device comprises:
Analog sampling processor, A/D converter, scm managing system, key input unit, clock signal unit, alarm, communication interface, storage unit, host computer, wherein, described analog sampling processor is used for monitoring the test line of communication power supply, and obtains analog voltage signal; Described A/D converter is used for the analog voltage signal of acquisition to be converted to digital signal; Described clock signal unit is for generation of clock signal; Described key input unit is used for input control order; Described scm managing system is used for when the dual signal of analog sampling processor and key input unit is after A/D changes, carry out computational analysis and process judgement, it judges result, alarm equipment alarm is sent on one tunnel, another road sends host computer to signal and processes, and passes the signal along on grid check for centralized control center supervisor through communication interface.
Wherein, in the embodiment of the present application, described analog sampling processor specifically comprises: alterating and direct current source module, sensor assembly, multilevel iudge module, analog output module, wherein, described alterating and direct current source module is used for AC power rectification is that direct supply is for described analog sampling processor; Described sensor assembly for gathering the current changing signal of communication power supply test line, and by the signal transmission that collects to multilevel iudge module; Described multilevel iudge module compares according to the signal collected, if meet comparison rule, then output voltage signal is to described analog output module, and the signal that described analog output module comes according to the transmission of multilevel iudge module generates analog voltage signal.
Wherein, in the embodiment of the present application, described alterating and direct current source module is specially: by 220V AC power from 1., 2. terminal introduce, through K switch 1, insurance BX sends transformer B1 step-down to, B1 secondary centre tap, as publicly; Diode D1-D4 completes positive and negative power rectifier; D1, D3 output terminal is in parallel, and connect input end 1 pin that three rectify voltage stabilizer WY1,3 pin of WY1 connect publicly, and 2 pin of WY1 export positive supply; D2, D4 input end is in parallel, and connect input end 3 pin that three ends bear voltage stabilizer WY2,1 pin of WY2 connects publicly, and 2 pin of WY2 export negative supply; The filtering that electric capacity C1, C2, C3, C4 do three terminal regulator input respectively, export; Light emitting diode Fg1 and resistance R1 connects, and does working power instruction.
Wherein, in the embodiment of the present application, described sensor assembly specifically comprises: Hall current sampling thief HR, load L, artifical resistance Rd1, artifical resistance Rd2, wherein, described Hall current sampling thief comprises: base disk, described base disk is placed with sensor, described sensor and described base disk are equipped with fixed orifice, instrument connection is provided with in the middle part of described sensor, tested AC line is monitored through described instrument connection, and described covers disposed on sensor has anode connection terminal a, negative pole link b, sampled signal output terminal c, earth terminal d; Wherein, the anode connection terminal a of described Hall current sampling thief HR is connected with the positive pole of described alterating and direct current source module, the negative pole link b of described Hall current sampling thief HR is connected with load L and is connected with the negative pole of described alterating and direct current source module afterwards, artifical resistance Rd1 and artifical resistance Rd2 is in parallel with described load L after connecting, described sampled signal output terminal c and described multilevel iudge model calling.
Wherein, in the embodiment of the present application, described multilevel iudge module is specially: resistance R2 and voltage stabilizing diode WY3 connects, and forms reference voltage, and is access to inverting input 2 pin; Resistance R3, R4 connect, and form working point, and are access to in-phase input end 3 pin, and at homophase, end of oppisite phase form multilevel iudge module in conjunction with integrated operational amplifier circuit, the output terminal of described multilevel iudge module is connected with described potentiometer W1.
Wherein, in the embodiment of the present application, one end of the potentiometer of described analog output module is connected with the output terminal of described multilevel iudge module, through the adjustment of potentiometer, at the corresponding load variations output voltage signal in moving contact OUT place, the other end of potentiometer connect with resistance R5 after ground connection.
Wherein, in the embodiment of the present application, when carrying out the development of automated watch-keeping facility, first analyze, time normal, relevant instrumentation table meter is devoted oneself to work, and load current is relatively stable; When a failure occurs, no matter be ground connection or short circuit, electric current all can be made to change, and most for increasing.For this reason, we catch such Variation Features to carry out the development of communication power supply monitoring alarm, emphasis is monitored load current, and time normal, device maintains the original state, time abnormal, device judges after testing and can send sound and light signal, provides warning message to operations staff, in order to immediate analysis process, the generation of minimizing accident and expansion, effectively improve the security and stability of power communication system.
Wherein, in the embodiment of the present application, communication power supply is when normally running, as calculated and detect, no matter bus or each branch line, all can possess metastable current values, and when being short-circuited, ground connection time, electric current will change, be generally rising, for this reason, we can using normal load current value as comparison basis, when abnormal surmounting, carry out sound and light alarm.
Know the size of actual motion current value, then will carry out data monitoring collection, but direct current is unlike alternating current, electromagnetic field is very weak, sample very difficult, for head it off, in prior art, take the conversion testing method of conveying about 10Hz low frequency signal to system, such and bad, because one is increasing device investment, two is add frequency interferences in electric power DC system, so we have abandoned such scheme.
What we specifically implemented employing is hall sensing technology, and solve such problem, Hall element main in this technology is a kind of semiconductor devices, when no current passes through, is in stationary state; When a current flows through, just can activate electric charge, send the voltage signal of corresponding change, we send this signal to main frame again, do value and compare and judge to control, when confirming as fault, to send row sound and light alarm signal, Hall element model used is CS1000EK2.
Wherein, Hall element structure and sample mode be as shown in Figures 2 and 3: in fig. 2, monitored DC line 1(can be power bus, may also be branched line), the center instrument connection 3 of Hall element 2 is passed from anode M, the other end of circuit is connected to load L, get back to negative terminal N, 4 is terminals, wherein a be+15V, b for-15V, c be sampled signal output terminal, d is earth terminal, 5 is base disk, 6 is fixed orifices, can select according to field position, as long as passed instrument connection 3 by survey line in detail in this figure, connect working power, monitored state can be entered.
Fig. 3 is sampled analogue circuits figure, and time normal, total current Iz is identical with load current If, i.e. Iz=If, in Hall element HR, can be used as a conventional value and exports, when an error occurs, as there is grounding phenomenon in circuit, ground current Id will be produced, total current Iz increases, then Iz=If+Id, the electric quantity signal that at this moment Hall element collects increases, after conversion process, send corresponding larger voltage signal at the c terminal of Fig. 3, in Fig. 3, Rd1, Rd2 are analogue ground resistance.
Wherein, in the embodiment of the present application, please refer to Fig. 4, Fig. 4 is communication power supply load current prison circuit diagram, in the diagram, has following components, will be introduced respectively.
Alterating and direct current source module: power supply is working foundation, so first let us designs, before Fig. 4,220V AC power from 1., 2. terminal introduce, through K switch 1, insurance BX sends transformer B1 step-down to, B1 secondary centre tap, as publicly; Diode D1-D4 completes positive and negative power rectifier; D1, D3 output terminal is in parallel, and connect input end 1 pin that three rectify voltage stabilizer WY1,3 pin of WY1 connect publicly, and 2 pin export positive supply; D2, D4 input end is in parallel, and connect input end 3 pin that three ends bear voltage stabilizer WY2,1 pin of WY2 connects publicly, and 2 pin export negative supply, and wherein the model of WY1 is the model of W7815, WY2 is W7915; C1, C2 are 2200f electrochemical capacitors, and C3, C4 are the electric capacity of the dacron of 0.01f, and they do three terminal regulator input, the 50Hz exported and medium-high frequency filtering respectively; Light emitting diode Fg1 and resistance R1 connects, and does working power instruction.
Sensor assembly: can see in the left side of Fig. 4, we devise Hall element and connected mode thereof, its electric signal collected exports from wiring 4, the corresponding input socket CZ1 sent in Fig. 4 again, as seen from the figure, a termination+15V power supply of CZ1, b termination-15V power supply, c end is the fault-signal after Collect conversion, and be access to comparison amplifier, d is publicly.
After device connects, by monitored AC line through core bore in Hall element, connect positive-negative power, curent change collecting work can be started.
Multilevel iudge module: in the diagram, forms multilevel iudge module centered by IC1, and wherein resistance R2 and voltage stabilizing diode WY3 connects, and forms reference voltage, is access to inverting input 2 pin; Resistance R3, R4 connect, and form working point, are access to in-phase input end 3 pin, thus, at homophase, end of oppisite phase form multilevel iudge device in conjunction with integrated transporting discharging IC1.
At nominal conditions, load current change is little, and the conventional input voltage of Hall element is lower, is in U2 ﹥ U3 state, integrated transporting discharging IC1 by; If but there is the phenomenon of the failure such as ground connection, load impact, DC current Iz rises, and after Hall element sample conversion, send the high voltage of corresponding change here from c pin, will be converted to U2 ﹤ U3, now integrated transporting discharging IC1 overturns, and exports high level at 6 pin.
That IC1 integrated transporting discharging block signal is selected is F007, and it can adapt to ± 15V work.
Analog output module: after integrated transporting discharging IC1 overturns; high level is sent at 6 pin; this high level is access to one end of potentiometer W1; through the adjustment of W1; at moving contact OUT place, corresponding load variations exports 0-3.6V voltage signal, carries out value prepare for intelligent computation, and the other end of W1 is connected with resistance R5 ground connection afterwards; R5 is protective resistance, causes output signal shorted to earth when potentiometer moving contact can be prevented to be adjusted to termination, bottom.
Because present unattended substation increases, need to consider the problem of monitor signal teletransmission to centralized control center, for this reason, we introduce intelligent monitoring device, have enabled required function.
As shown in Figure 1, device is made up of external sampling and inside chip two part the structural representation of monitoring device.
External analog sampled signal: Fig. 1 upper left quarter is that the monitored circuit of communication power supply passes Hall element, after circuit compares process in Fig. 4, from the analog voltage signal that OUT sends here.
Chip structure: in FIG, the signal through Hall element collection is incorporated into single-chip microprocessor system, carries out the intelligent processing method of series:
1) A/D conversion: what send here after Hall sampling and processing of circuit thereof is analog voltage signal, and microcomputer chip response is digital signal, so, do A/D conversion, CPU central signal processor is sent to again by data bus and address bus, carrying out makes comparisons with keyboard signalization judges to wait work, and it is MAX125 that A/D used changes model.
2) clock signal: device inside is provided with quartz oscillator, frequency divider, counter etc., with produce year, month, day, hour, min, second isochronon signal, when both can walk, again can record trouble time of origin, be convenient to crash analysis process, the model of crystal clock used is DS12887.
3) keyboard is arranged: on the right side of Fig. 1, be provided with keyboard and IOP(I/OProcessor) integrated receiving processor, can man-machine conversation be carried out, input monitored ground path, sensor number, electric current fiducial value, warning initiation value, time adjustment, communication protocol etc.; Can do monitored ground connection wire size, ground current value, fault-time etc. in conjunction with LCD liquid crystal display screen again to retrieve for examination and inquire about, the model of receiving processor used is JCDL8279.
4) scm managing system: according to information processing needs, we have selected powerful MCS-96 type single chip microcomputer to carry out the work.
The dual signal arranged when analog sampling and keyboard is after A/D changes, by address bus and data bus, send into CPU single chip microcomputer, carry out computational analysis and process judgement, it judges result, the display alarm of the machine LCD liquid crystal display is sent on one tunnel, another road sends host computer to signal again, make more wide region, the classification of larger function, layout, tabulation, the process such as storage, also by the on-the-spot communication protocol that adapts to and baud rate etc., through RS232, 485 interfaces pass the signal along on grid, make centralized control center supervisor and relevant leader also can understand and grasp communication direct supply working condition in the distance, particularly under abnormality, make crash analysis in time to process with investigation, to ensure direct current communication power supply energy safety, stable operation.
Wherein, also carry out CPU Software for Design in the embodiment of the present application, according to the needs of communication direct supply load current monitoring, on the basis of hardware configuration, we devise related software flow process, as shown in Figure 5, are specially: initialization, work starts, and first resets monitoring system and the initialization process such as reset; Man-machine conversation, from keyboard, input series of signals and data, they are:
1), monitored circuit sequence number, can be power bus or branch line;
2), sweep time t, for avoiding temporary impact and subduction signal operation time etc., to confirm authenticity and the continuity of fault, this device arranges sweep interval t, is taken as 10 seconds.
3), conventional load electric current I f, basic fiducial value can be set to;
Multilevel iudge: when optimum configurations completes, data conversion treatment is just carried out in inside, forms the binary code of monolithic function identification; Opposite side, the digital signal of being sampled by DC load current monitoring and changing through A/D, gives the comparison differentiation (footnote letter z, f represent " total value " and " load value " respectively) that CPU carries out surveying total current Iz and conventional load electric current I f in the lump.
Time normal, total current Iz and load current If substantially always, namely in the inquiry of " Iz > If ", obtains negative answer, exports, continue " scan round " so signal is held from comparer N.
When there is the faults etc. such as ground connection in monitored circuit, ground current Id will be produced, total current increases thus, that is: Iz=If+Id, so, send collected signal to CPU and compare judgement, namely in the inquiry of " Iz > If ", what obtain is answer certainly, and signal then changes the Y end output from comparer.
Liquid crystal display metering display: liquid crystal display display point normal and abnormal two kinds of situations, time normal, focus on display conventional load electric current I f value and current time; Time abnormal, then 0-255 digital point in corresponding for the 0-3.6V magnitude of voltage of potentiometer W1 regulation output in Fig. 3 intelligent chip to be calculated and quantification treatment, and add the data of original If, common display, the failure condition of Fang Tixian Iz=If+Id, except current data, also to show fault-time, line number and sound and light alarm signal etc.; These information are stored again simultaneously, in order to retrieving for examination inquiry, do accident analyzing and processing.
Another in mimic channel, be that voltage stabilizing diode WY3 does reference voltage by conventional load current conversion, compared with the voltage data through Hall sample conversion; And in micro computer, load current If value is provided with again through keyboard, and carry out " Iz > If? " inquiry compare, like this, seem repetition, but act on different, the existing multilevel iudge of the latter, is also the magnitude calculation starting " If+Id ", and data is shown on liquid crystal display, also can start the warning device that an intelligent system distant place is arranged simultaneously, therefore embody Duplex treatment feature more accurately and reliably.
Information transmission: fault-signal is while liquid crystal display display alarm, send host computer to again, do the process such as the integration classification of more wide region, again through RS232 or 485 interfaces etc., adopt on-the-spot suitable communications protocol, send grid to, make centralized control center personnel and relevant leader also can recognize DC system fault situation in the distance, safeguard process to make in time, thus avoid accident spread expansion, increase substantially security of system coefficient thus.
Intelligent communication power-charged current monitoring alarm in the application have employed advanced Hall Sampling techniques, and be provided with analog comparator, signal is done front-end processing, and export the magnitude of voltage of corresponding load variations, this magnitude of voltage is changed through A/D again, again digital signal is sent to micro computer and be further analyzed process, and realize fault analysis and compare, judge, metering, display, the functions such as storage and the signal is far passed, and realize distant place centralized control center and can obtain abnormal information in time, make security maintenance process, increase substantially intelligent management level, this device is more conducive to the use expanding to unattended substation.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
Owing to have employed, intelligent communication electrical power monitoring device is designed to comprise: analog sampling processor, A/D converter, scm managing system, key input unit, clock signal unit, alarm, communication interface, storage unit, host computer, wherein, described analog sampling processor is used for monitoring the test line of communication power supply, and obtains analog voltage signal, described A/D converter is used for the analog voltage signal of acquisition to be converted to digital signal, described clock signal unit is for generation of clock signal, described key input unit is used for input control order, described scm managing system is used for when the dual signal of analog sampling processor and key input unit is after A/D changes, carry out computational analysis and process judgement, it judges result, and alarm equipment alarm is sent on a road, and another road sends host computer to signal and processes, pass the signal along on grid for the technical scheme that centralized control center supervisor checks through communication interface, that is, first analyze, time normal, relevant instrumentation table meter is devoted oneself to work, and load current is relatively stable, when a failure occurs, no matter be ground connection or short circuit, capital makes electric current change, and it is most for increasing, therefore emphasis is monitored load current, time normal, device maintains the original state, time abnormal, device judges after testing and can send sound and light signal, warning message is provided to operations staff, in order to immediate analysis process, the generation of minimizing accident and expansion, have employed advanced Hall Sampling techniques, and be provided with analog comparator, signal is done front-end processing, and export the magnitude of voltage of corresponding load variations, this magnitude of voltage is changed through A/D again, again digital signal is sent to micro computer and be further analyzed process, and realize fault analysis and compare, judge, metering, display, the functions such as storage and the signal is far passed, and realize distant place centralized control center and can obtain abnormal information in time, make security maintenance process, increase substantially intelligent management level, so, efficiently solve existing communication power supply fault detection method to exist, detection efficiency is lower, regular link is easily caused to be subject to involving the technical matters of impact, and then it is reasonable in design to achieve communication power supply monitoring device, can effectively monitor communication power supply circuit, when a failure occurs, can report to the police by carrying out rapidly and efficiently, the technique effect of the security and stability of effective raising power communication system.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. an intelligent communication electrical power monitoring device, is characterized in that, described device comprises:
Analog sampling processor, A/D converter, scm managing system, key input unit, clock signal unit, alarm, communication interface, storage unit, host computer, wherein, described analog sampling processor is used for monitoring the test line of communication power supply, and obtains analog voltage signal; Described A/D converter is used for the analog voltage signal of acquisition to be converted to digital signal; Described clock signal unit is for generation of clock signal; Described key input unit is used for input control order; Described scm managing system is used for when the dual signal of analog sampling processor and key input unit is after A/D changes, carry out computational analysis and process judgement, it judges result, alarm equipment alarm is sent on one tunnel, another road sends host computer to signal and processes, and passes the signal along on grid check for centralized control center supervisor through communication interface.
2. device according to claim 1, it is characterized in that, described analog sampling processor specifically comprises: alterating and direct current source module, sensor assembly, multilevel iudge module, analog output module, wherein, described alterating and direct current source module is used for AC power rectification is that direct supply is for described analog sampling processor; Described sensor assembly for gathering the current changing signal of communication power supply test line, and by the signal transmission that collects to multilevel iudge module; Described multilevel iudge module compares according to the signal collected, if meet comparison rule, then output voltage signal is to described analog output module, and the signal that described analog output module comes according to the transmission of multilevel iudge module generates analog voltage signal.
3. device according to claim 2, is characterized in that, described alterating and direct current source module is specially: by 220V AC power from 1., 2. terminal introduce, through K switch 1, insurance BX sends transformer B1 step-down to, B1 secondary centre tap, as publicly; Diode D1-D4 completes positive and negative power rectifier; D1, D3 output terminal is in parallel, and connect input end 1 pin that three rectify voltage stabilizer WY1,3 pin of WY1 connect publicly, and 2 pin of WY1 export positive supply; D2, D4 input end is in parallel, and connect input end 3 pin that three ends bear voltage stabilizer WY2,1 pin of WY2 connects publicly, and 2 pin of WY2 export negative supply; The filtering that electric capacity C1, C2, C3, C4 do three terminal regulator input respectively, export; Light emitting diode Fg1 and resistance R1 connects, and does working power instruction.
4. device according to claim 3, it is characterized in that, described sensor assembly specifically comprises: Hall current sampling thief HR, load L, artifical resistance Rd1, artifical resistance Rd2, wherein, described Hall current sampling thief comprises: base disk, described base disk is placed with sensor, described sensor and described base disk are equipped with fixed orifice, instrument connection is provided with in the middle part of described sensor, tested AC line is monitored through described instrument connection, and described covers disposed on sensor has anode connection terminal a, negative pole link b, sampled signal output terminal c, earth terminal d; Wherein, the anode connection terminal a of described Hall current sampling thief HR is connected with the positive pole of described alterating and direct current source module, the negative pole link b of described Hall current sampling thief HR is connected with load L and is connected with the negative pole of described alterating and direct current source module afterwards, artifical resistance Rd1 and artifical resistance Rd2 is in parallel with described load L after connecting, described sampled signal output terminal c and described multilevel iudge model calling.
5. device according to claim 4, is characterized in that, described multilevel iudge module is specially: resistance R2 and voltage stabilizing diode WY3 connects, and forms reference voltage, and is access to inverting input 2 pin; Resistance R3, R4 connect, and form working point, and are access to in-phase input end 3 pin, and at homophase, end of oppisite phase form multilevel iudge module in conjunction with integrated operational amplifier circuit, the output terminal of described multilevel iudge module is connected with potentiometer W1.
6. device according to claim 5, it is characterized in that, one end of the potentiometer W1 of described analog output module is connected with the output terminal of described multilevel iudge module, through the adjustment of potentiometer, at the corresponding load variations output voltage signal in moving contact OUT place, the other end of potentiometer connect with resistance R5 after ground connection.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199343A (en) * | 2016-10-13 | 2016-12-07 | 国网四川省电力公司电力科学研究院 | A kind of power system DC power supply monitor and monitoring method |
| CN106556426A (en) * | 2016-11-21 | 2017-04-05 | 国网四川省电力公司巴中供电公司 | A kind of highly sensitive sample circuit of electric power monitoring |
| CN106646084A (en) * | 2016-12-28 | 2017-05-10 | 国网浙江省电力公司台州供电公司 | Distributed interface device of relay protection debugging instrument |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865959A (en) * | 2010-05-14 | 2010-10-20 | 无锡职业技术学院 | Charger detector of electric vehicle |
| CN102109581A (en) * | 2009-12-25 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Test device of power supply |
| CN202372633U (en) * | 2011-12-27 | 2012-08-08 | 黑龙江交通职业技术学院 | Power supply detection device used for communication |
| CN202512225U (en) * | 2012-03-21 | 2012-10-31 | 杭州乐图光电科技有限公司 | Intelligent power testing system |
| CN102778604A (en) * | 2012-06-16 | 2012-11-14 | 中国电信股份有限公司泰州分公司 | Base station current accurate acquisition transmission unit and transmission implementation method |
| CN202994886U (en) * | 2012-12-20 | 2013-06-12 | 浙江海得新能源有限公司 | Hall current measurement tool device |
| KR101305334B1 (en) * | 2013-08-05 | 2013-09-06 | 한국 전기안전공사 | Device for controlling and monitoring security lamp |
| CN103308739A (en) * | 2012-03-07 | 2013-09-18 | 深圳市柏特瑞电子有限公司 | Network-type Hall direct current sensor |
| KR20130135520A (en) * | 2012-06-01 | 2013-12-11 | 엘에스산전 주식회사 | A power monitoring system and a method for displaying information of a power system |
| CN203658551U (en) * | 2013-10-08 | 2014-06-18 | 武汉钢铁(集团)公司 | Monitoring system for power supply equipment |
| CN203838223U (en) * | 2014-03-28 | 2014-09-17 | 云南电力试验研究院（集团）有限公司电力研究院 | Hall current transformer |
| CN104184109A (en) * | 2013-05-23 | 2014-12-03 | 海洋王（东莞）照明科技有限公司 | Overvoltage protection device for lamp aging test |
| CN205263229U (en) * | 2015-12-10 | 2016-05-25 | 国网四川省电力公司电力科学研究院 | Communication power monitoring devices |
-
2015
- 2015-12-10 CN CN201510909626.9A patent/CN105372550A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109581A (en) * | 2009-12-25 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Test device of power supply |
| CN101865959A (en) * | 2010-05-14 | 2010-10-20 | 无锡职业技术学院 | Charger detector of electric vehicle |
| CN202372633U (en) * | 2011-12-27 | 2012-08-08 | 黑龙江交通职业技术学院 | Power supply detection device used for communication |
| CN103308739A (en) * | 2012-03-07 | 2013-09-18 | 深圳市柏特瑞电子有限公司 | Network-type Hall direct current sensor |
| CN202512225U (en) * | 2012-03-21 | 2012-10-31 | 杭州乐图光电科技有限公司 | Intelligent power testing system |
| KR20130135520A (en) * | 2012-06-01 | 2013-12-11 | 엘에스산전 주식회사 | A power monitoring system and a method for displaying information of a power system |
| CN102778604A (en) * | 2012-06-16 | 2012-11-14 | 中国电信股份有限公司泰州分公司 | Base station current accurate acquisition transmission unit and transmission implementation method |
| CN202994886U (en) * | 2012-12-20 | 2013-06-12 | 浙江海得新能源有限公司 | Hall current measurement tool device |
| CN104184109A (en) * | 2013-05-23 | 2014-12-03 | 海洋王（东莞）照明科技有限公司 | Overvoltage protection device for lamp aging test |
| KR101305334B1 (en) * | 2013-08-05 | 2013-09-06 | 한국 전기안전공사 | Device for controlling and monitoring security lamp |
| CN203658551U (en) * | 2013-10-08 | 2014-06-18 | 武汉钢铁(集团)公司 | Monitoring system for power supply equipment |
| CN203838223U (en) * | 2014-03-28 | 2014-09-17 | 云南电力试验研究院（集团）有限公司电力研究院 | Hall current transformer |
| CN205263229U (en) * | 2015-12-10 | 2016-05-25 | 国网四川省电力公司电力科学研究院 | Communication power monitoring devices |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199343A (en) * | 2016-10-13 | 2016-12-07 | 国网四川省电力公司电力科学研究院 | A kind of power system DC power supply monitor and monitoring method |
| CN106556426A (en) * | 2016-11-21 | 2017-04-05 | 国网四川省电力公司巴中供电公司 | A kind of highly sensitive sample circuit of electric power monitoring |
| CN106646084A (en) * | 2016-12-28 | 2017-05-10 | 国网浙江省电力公司台州供电公司 | Distributed interface device of relay protection debugging instrument |
| CN108548966A (en) * | 2018-02-08 | 2018-09-18 | 安徽机电职业技术学院 | A kind of electric load detecting system |
| CN109188203A (en) * | 2018-09-06 | 2019-01-11 | 国网山东省电力公司菏泽供电公司 | A kind of power communication load current detection alarm |
| CN109450095B (en) * | 2018-12-05 | 2024-02-27 | 浙江永基智能科技有限公司 | Remote monitoring method for low-voltage direct-current power supply |
| CN109450095A (en) * | 2018-12-05 | 2019-03-08 | 浙江永基智能科技有限公司 | A kind of low-voltage dc power supply remote monitoring system and monitoring implementation method |
| CN109708831A (en) * | 2018-12-29 | 2019-05-03 | 桂林金鹰乳胶技术有限公司 | A kind of dry method electric-examination new equipment suitable for sheath detection |
| CN110602247A (en) * | 2019-09-27 | 2019-12-20 | 国网河南省电力公司博爱县供电公司 | Intelligent video online monitoring platform for foreign matters and defects of power transmission line |
| CN112834813A (en) * | 2021-01-06 | 2021-05-25 | 南京能晶电子科技有限公司 | Hall current sensor chip for electric automobile |
| CN113720368A (en) * | 2021-08-30 | 2021-11-30 | 中航华东光电有限公司 | Rapid detection device of AD590 sensor |
| CN114224268A (en) * | 2022-02-24 | 2022-03-25 | 极限人工智能有限公司 | Image processing device and endoscopic video system |
| CN114224268B (en) * | 2022-02-24 | 2022-05-03 | 极限人工智能有限公司 | Image processing device and endoscopic video system |
| CN116819213A (en) * | 2023-07-04 | 2023-09-29 | 中国建筑科学研究院有限公司 | Remote test self-adaptive interface data acquisition method, system and application program |
| CN117370123A (en) * | 2023-12-06 | 2024-01-09 | 苏州元脑智能科技有限公司 | Power supply, power supply abnormality management method, power supply abnormality management equipment and medium |
| CN117370123B (en) * | 2023-12-06 | 2024-02-23 | 苏州元脑智能科技有限公司 | Power supply, power supply abnormality management method, power supply abnormality management equipment and medium |
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