CN107229029A - A kind of online capacity checking device of UHF on-line monitoring systems sensitivity and its check method - Google Patents
A kind of online capacity checking device of UHF on-line monitoring systems sensitivity and its check method Download PDFInfo
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- CN107229029A CN107229029A CN201710361044.0A CN201710361044A CN107229029A CN 107229029 A CN107229029 A CN 107229029A CN 201710361044 A CN201710361044 A CN 201710361044A CN 107229029 A CN107229029 A CN 107229029A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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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
- G01R31/12—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
Abstract
The invention discloses a kind of online capacity checking device of sensitivity and its check method, the online capacity checking device of the sensitivity, for verifying superfrequency on-line monitoring system, including：Multiple online check units, are connected with the sensor and detecting system OCU to be checked of superfrequency on-line monitoring system；It is online to check center processing unit, it is connected with the multiple in school check unit by optical cable, receives the signal that multiple online check units are sent.
Description
Technical field
The present invention relates to the live Verification Technology field of high voltage electric equipment live testing apparatus for local discharge, more particularly to one
Kind for superfrequency shelf depreciation UHF (Ultra High Frequency) on-line measuring device online capacity checking device hardware and
The research method of software.
Background technology
At present, relevant UHF on-line detecting systems sensitivity scene is checked and is all based on the recommendation of CIGRE working groups both at home and abroad
Check method, method is divided into laboratory and live two parts, wherein can obtain the equivalent local arteries and veins of 5Pc by laboratory test
Punching injection amplitude, then this equivalent injected pulse is injected by live GIS.Because live type UHF sensor installation number is more, and
It is required that carrying out periodicity check to on-line detector, checked one by one by field personnel, generally require to expend substantial amounts of
Manpower and materials, and also have a great impact to the degree of accuracy of check.
The content of the invention
It is an object of the invention to provide a kind of online capacity checking device design of UHF on-line monitoring systems sensitivity, for fixed
Phase carries out automatic Check to operating UHF monitoring systems sensitivity.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of online capacity checking device of sensitivity, for verifying superfrequency on-line monitoring system, it is characterised in that including：
Multiple online check units, are connected with the sensor and detecting system OCU to be checked of superfrequency on-line monitoring system；
It is online to check center processing unit, it is connected with the multiple in school check unit by optical cable, receives multiple online
Check the signal that unit is sent.
The online capacity checking device of described sensitivity, plurality of online check unit includes pulse signal source, RF switch
Array and signal conditioner；
Radio-frequency switch array is connected with pulse signal source, signal conditioner interface respectively.
The online capacity checking device of described sensitivity, wherein pulse signal source include impulse generator, communication control port, adjusted
Die block, power interface, signal output interface and signal source control interface, wherein control port and impulse generator and tune
Die block is connected, and is worked under the control of control port；Wherein：
Voltage regulating module connects power supply by power interface；
Impulse generator is connected by the pulse source interface of signal output interface and radio-frequency switch array, for exporting arteries and veins
Punching；
Communication control interface is connected by signal source control interface with signal acquisition control unit, control pulse output；
Impulse generator is connected with voltage regulating module, obtains voltage, and voltage is changed, and obtains output amplitude and repetition
The steep-sided pulse waveform of frequency-adjustable, and it is sent to radio-frequency switch array.
The signal source control interface of control port is connected with signal acquisition control unit, control clock output.
The online capacity checking device of described sensitivity, wherein radio-frequency switch array include the switch arrays that multiple RF switches are constituted
Row and control port, self-test switch, pulse source interface, self-inspection interface, conditioner interface, control interface, power interface, wherein controlling
Port processed is connected with radio-frequency switch array and control interface and power interface；
Each RF switch of input is that hilted broadsword three holds switch, and timesharing and output end, pulse source interface are distinguished during work
And the connection of conditioner interface；
The input of radio-frequency switch array is connected with sensor, and output end is connected with OCU units；
Self-inspection interface is connected with the rf input interface of self-test switch and signal conditioner, detects signal conditioning module
Whether normal work；
Pulse source interface is connected with the signal output interface of pulse signal source, the amplitude and again of return pulse signal source output
The adjustable steep-sided pulse waveform of complex frequency；
Conditioner interface is connected with the self-test signal input port of self-checking unit, the amplitude after conditioner is handled and again
The adjustable steep-sided pulse waveform of complex frequency is output in self-checking unit；
Control interface connects the radio-frequency switch array control interface of signal acquisition control unit, controlling switch array switch
Cut-off；
Power interface is the interface powered for power module to radio-frequency switch array；
When self-test switch is connected with pulse source interface, can detect pulse signal source module whether normal work, not self-inspection
When, self-test switch disconnects；
The online capacity checking device of described sensitivity, wherein signal conditioner include rf input interface, detection output interface,
Radio frequency output interface；
Rf input interface is connected with the conditioner interface and self-inspection interface in radio-frequency switch array, detection sensor radiation
Pulse signal and clock output self-test signal；
Detection output interface is connected with the conditioner control interface of signal acquisition control unit, can be exported at amplification demodulator
Sensor output signal after reason, is transferred to signal acquisition control unit, and signal acquisition control unit can also pass through this interface
Carry out control signal conditioner；
Radio frequency output interface is reserved port, for repair and maintenance signal conditioner.
The online capacity checking device of described sensitivity, plurality of online check unit includes signal acquisition control unit, light
Electric converting unit, self-checking unit；
Signal acquisition control unit is connected with photoelectric conversion unit, self-checking unit respectively with pulse switch array and signal
Conditioner is connected.
The online capacity checking device of described sensitivity, wherein signal acquisition control unit include radio-frequency switch array, signal source
Control interface, conditioner control interface gathers signal output port, power interface；
The control port connection of radio-frequency switch array control interface and radio-frequency switch array, according to working state control radio frequency
Switch arrays shut-off is acted and the connection status with output end (OCU), pulse source interface (PG) and conditioner interface (AU)；
The signal source control interface connection of signal source control interface and pulse signal source, for the output of control wave source
Amplitude and the adjustable waveform of repetition rate；
Conditioner control interface is connected with the detection output interface of signal conditioner, the detection of receiving signal reason device output
Signal, the multiplication factor of the rectified signal of control signal conditioner；
The input power port for gathering signal output port and photoelectric conversion unit is connected, and the detection after collection by amplification is believed
Number export and to check the control command of center processing unit online to photo-electric conversion element, and reception processing；
Power interface is connected with power module, for being powered to signal acquisition module.
The online capacity checking device of described sensitivity, wherein photo-electric conversion element include input power port, export optical port, and power supply connects
Mouthful, reserve power port；
Input power port is connected with the signal acquisition output interface of signal acquisition control unit, for receiving signal acquisition control
Rectified signal and the online control command for checking center processing unit that unit is collected；
Output optical port is connected with online center processing unit of checking, and the testing result of signal acquisition control unit is uploaded to
It is online to check center processing unit；
Used for repair and maintenance reserved port；
Power interface is connected with power module, for being powered to photoelectric conversion unit.
The online capacity checking device of described sensitivity, wherein self-checking unit include monopole probes, self-test signal input port, self-inspection
Signal output, wherein monopole probes are connected with self-test signal input port and self-test signal delivery outlet respectively；
Self-test signal delivery outlet is connected with the rf input interface of signal conditioner, the pulse radiated for detection sensor
Signal and the self-test signal of clock output；
Self-test signal input port is connected with the conditioner interface of radio-frequency switch array, can be input to and penetrated with radiation sensor
The signal of frequency switch arrays.
The described online capacity checking device of a kind of sensitivity, wherein checking center processing unit online includes optical port and network interface two
External interface is planted, wherein network interface is connected with the main I ED of UHF monitoring systems to be checked, optical port is connected with online unit of checking.
The described online capacity checking device of a kind of sensitivity, wherein online centered on the main modular of check center processing unit
Processing main plate, parsing checks unit and the data come UHF monitoring systems to be checked from online, with reference to inherent database and diagnosis
Rule, provides check result.
A kind of online check method of sensitivity, for the online capacity checking device verification superfrequency on-line monitoring system of sensitivity,
The online capacity checking device of its medium sensitivity includes multiple online check units and checks center processing unit online, and its feature exists
In comprising the following steps：
Step S1, collection ambient noise, pulse signal source send pulse signal, and online check is completed according to the signal of collection
Unit self-inspection；
Step S2, pulse signal source are to sensor Injection Signal, and the sensor for being injected into signal is sent a signal to and its phase
Adjacent sensor, it is online to check the ambient noise that unit collects adjacent sensor, sensor school is completed according to the signal of collection
Core；
Step S3, online check processing unit collect ambient noise, the pulse signal that pulse signal source is sent, according to collection
Signal complete superfrequency on-line monitoring system.
The online check method of described sensitivity, wherein step S1 include following sub-step：
Si in step S11, radio-frequency switch array Si, j are kept in the OCU connections of acquiescence working condition and output end, Si
Self-test switch STSi be connected with pulse source interface；
Step S12, the preceding background for recording the surrounding environment that 2s sensors are detected of self-inspection pulse output after switch motion
Noise signal；
Step S13, signal acquisition control unit control wave source send signal；
Step S14, the self-test switch closed in radio-frequency switch array；
Step S15, signal acquisition control unit collection amplitude and pulse number；
Step S16, signal acquisition control unit will gather amplitude and pulse number uploads to online check center processing list
Member；
Signal and data that step S17, the online check center processing unit of check diagnostic software control pass through contrast return
The initial data of library storage, provides self-detection result.
The online check method of described sensitivity, wherein, step S2 also includes following sub-step：
Step S21, online center processing unit send instruction through scene by network to online unit of checking.
Step S22, signal acquisition control unit control radio-frequency switch array using electric signal, make switch arrays SiIn penetrate
Frequency switch Si,jIt is connected with clock therein, Si+1In RF switch Si+1,jWith conditioner interface AU thereini+1It is connected.
Step S23, pulse signal source are to i-th, j sensor Injection Signal, i+1, and j sensor receives signal.
Step S23, the ambient noise of signal acquisition control unit collection sensor i+1, j detection, and result is uploaded to
It is online to check center processing unit, check the amplitude that diagnostic software record storage is detected, duration 2s.
After step S24, completion above-mentioned steps, signal acquisition control unit control wave source sends repetition rate
100Hz, output voltage 10V waveform, the duration are 2S.
Through conditioner AU after step S25, signal acquisition control unit acquisition pulse source hairi+1The waveform of detection amplification, and will
As a result online check center processing unit is uploaded to, diagnostic software record storage detected amplitude is checked.
J=1 in step S26, said process, 2,3 ..., 8, j=1 situations are carried out first, then rotation j=2 successively,
3 ..., 8 situation, is repeatedly performed aforesaid operations.
Step S27, sensor i+2 is checked, repeat above-mentioned 2-5 operating procedure.
Step S28, because said process in i=1,2,3 ..., repeat aforesaid operations until complete whole station it is all pass
The check of sensor, each switch returns to acquiescence working condition.
Injection Signal and ambient noise that step S29, each sensor of contrast are detected, connecting inner database, check are examined
Disconnected software provides check result.
The online check method of described sensitivity, wherein, step S3 also includes following sub-step：
After step S31, completion sensor are checked, the RF switch in radio-frequency switch array recovers default conditions.
Step S32, signal acquisition control unit receive electric signal.
Step S33, signal acquisition control unit control radio-frequency switch array using electric signal, make in radio-frequency switch array Si
RF switch Si, j be connected with pulse source interface, the RF switch in Si+1 be default conditions.
Step S34, detecting system OCU to be checkedi+1,jAmbient noise around collection storage test environment, the duration is
2S。
After step S35, completion above-mentioned steps, signal acquisition control unit control wave source sends repetition rate
100Hz, output voltage 10V waveform, the duration are 2S.
Step S36, detecting system OCU to be checkedi+1,jCollection storage is now sent the signal of injection by clock.
Step S37, detecting system OCU to be checkedi+1,jThe result of the ambient noise collected and Injection Signal is passed through into master
IED is transmitted to online check center processing unit, and parses data.
J=1 in step S38, said process, 2,3 ..., 8, j=1 situations are carried out first, then rotation j=2 successively,
3 ..., 8 situation, is repeatedly performed aforesaid operations.
After step S39, completion detecting system i+1, detecting system OCU is continued to completei+1,jCheck, repeat step 5-8.
Step S1-S9, the step of detecting system check that the step S1-S7 of unit self-inspection will be checked in sensor are checked online
Carried out before rapid S1-S9
Automatic school can be carried out to operating UHF monitoring systems sensitivity by above-mentioned capacity checking device and check method
Core.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, embodiment will be described below
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only some of the present invention
Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also be attached according to these
Figure obtains other accompanying drawings.
Fig. 1 is the online capacity checking device schematic view of the mounting position of the present invention；
Fig. 2 is the schematic diagram inside online capacity checking device；
Fig. 3 is the structural representation of pulse signal source；
Fig. 4 is the structural representation of radio-frequency switch array；
Fig. 5 is the structural representation of signal conditioner；
Fig. 6 is the structural representation of signal acquisition control unit；
Fig. 7 is the structural representation of photoelectric conversion unit；
Fig. 8 is the structural representation of power module；
Fig. 9 is the structural representation of self-checking unit；
Figure 10 is the online structural representation for checking center processing unit；
Description of reference numerals：
1—GIS；2-sensor；3-unit is checked online；
4-OCU units；5-main IED or station end integrate 6-check center processing list online
Monitoring unit；Member；
7-clock；8-self-checking unit；9-signal conditioner；
10-signal acquisition control unit；11-input；12-radio-frequency switch array；
13-control port；14-output end；15-power module.
16-commercial power interface, 17-optical port, 18-power port
19-photoelectric conversion unit, 20-signal source, 21-power interface of control interface
22-signal output interface, 23-power interface, 24-control interface
25-switch arrays, 26-pulse source interface 27-self-inspection interface
28-conditioner interface 29-self-test switch, 30-detection output interface
31-radio frequency output interface, 32-rf input interface, 33-signal source control interface
34-conditioner, 35-radio-frequency switch array of control interface control 36-collection signal output interface
Interface processed
37-power interface, 38-power interface 39-input power port
40-output optical port 41-42-output interface of reserved power port
43-civil power input interface 44-self-test signal, 45-self-test signal of delivery outlet input port
46-center processing mainboard 47-network interface, 48-display
301-impulse generator, 302-control port, 303-voltage regulating module
901-monopole probes
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of UHF on-line detecting systems sensitivity online capacity checking device design, realizes to detection
The check of unit.
Embodiment one
The embodiment of the present invention provides a kind of online capacity checking device of sensitivity, specifically, as shown in Fig. 1~Fig. 2, the sensitivity
Online capacity checking device includes：Multiple online check units 3 and online check center processing unit 6, are wrapped wherein checking unit 3 online
Include：Clock 7, radio-frequency switch array 12, signal conditioner 9, signal acquisition control unit 10, photoelectric conversion unit 19, power supply
Module 15, self-checking unit 8, radio-frequency switch array 12 respectively with clock 7, self-checking unit 8, signal conditioner 9, signal acquisition list
Member 10 is connected.
Clock 7 includes impulse generator 301, control port 302 and voltage regulating module 303, wherein impulse generator 301
And voltage regulating module connection 303 works under the control of control port 302；Further, voltage regulating module 303 connects power supply (not
Shown in figure)；Impulse generator 301 is connected with voltage regulating module 303, obtains voltage, and voltage is changed, and is exported
Amplitude and the adjustable steep-sided pulse waveform of repetition rate, and it is sent to RF switch.The signal source control interface 20 of control port 302
It is connected with signal acquisition control unit, control clock output.
Radio-frequency switch array 14 includes the switch arrays 25 and control port 13 and self-test switch 29 that multiple switch is constituted,
Wherein control port 13 is connected with the switch arrays；Each switch of input 11 is that hilted broadsword three holds switch, is distinguished during work
Timesharing is connected with output end 14, pulse source interface 26 and conditioner interface 28, and the input 11 of switch arrays is connected with sensor,
Output end 14 is connected with OCU units；Self-inspection interface 27 is connected with the rf input interface 31 of signal conditioner 9, and detection signal is adjusted
Manage device module whether normal work；Pulse source interface 26 is connected with the signal output interface 22 of clock 7, return pulse signal source
The adjustable steep-sided pulse waveform of amplitude and repetition rate of output；The self-test signal input port of conditioner interface 28 and self-checking unit 8
45 are connected, and the adjustable steep-sided pulse waveform of amplitude and repetition rate after conditioner is handled is output in self-checking unit；Control
The radio-frequency switch array control interface 35 of interface 24 processed connection signal acquisition control unit 10, controlling switch array switch is opened
It is disconnected；Power interface 23 is the interface powered for power module 15 to radio-frequency switch array 12；Self-test switch 29 and pulse source interface
26 connection when, can detect pulse signal source module whether normal work, during not self-inspection, self-test switch disconnect；
Signal conditioner 9 includes rf input interface 32, detection output interface 30, radio frequency output interface 31, radio frequency input
Interface 32 is connected with the conditioner interface 28 and self-inspection interface 27 in radio-frequency switch array 12, the arteries and veins that can be radiated with detection sensor
Rush the self-test signal of signal and clock output；Detection output interface 30 and the conditioner control of signal acquisition control unit 10 connect
Mouth 34 is connected, and can be exported the sensor output signal after amplification demodulator processing, is transferred to signal acquisition control unit, signal is adopted
Collecting control unit 10 can also be by this interface come control signal conditioner；Radio frequency output interface 31 is reserved port, for examining
Repair maintenance signal conditioner.
Signal acquisition control unit 10 includes radio-frequency switch array control interface 35, signal source control interface 33, conditioner
Control interface 34, gathers signal output interface 36, power interface 37；Radio-frequency switch array control interface 35 and radio-frequency switch array
12 control port 13 is connected, can be controlled according to working condition radio-frequency switch array shut-off act and with output end 11,
The connection status of pulse source interface 26 and conditioner interface 28；The signal source control of signal source control interface 33 and clock 7 connects
Mouth 20 is connected, for control signal source switch and output；The detection output interface of conditioner control interface 34 and signal conditioner 9
30 are connected, the rectified signal of receiving signal reason device output, the multiplication factor of the rectified signal of control signal conditioner；Collection letter
Number output port 36 is connected with the input power port 40 of photoelectric conversion unit 19, the rectified signal after collection by amplification and reception
The online control command for checking center processing unit of processing is exported to photo-electric conversion element；Power interface 37 connects with power module 15
Connect, for being powered to signal acquisition module.
Photoelectric conversion unit includes input power port 39, exports optical port 40, and power interface 38 reserves power port 41；Input power port
39 are connected with the collection signal output interface 36 of signal acquisition control unit 10, are collected for receiving signal acquisition control unit
Rectified signal and the online control command for checking center processing unit；Export optical port 40 and check center processing unit 3 with online
It is connected by optical port 17, the testing result of signal acquisition control unit is uploaded to online check center processing unit；Reserved end
Mouth 41 is used for repair and maintenance and used；Power interface 38 is connected with power module 15, for being powered to photoelectric conversion unit.
Self-checking unit 8 includes monopole probes 901, and self-test signal input port 45, wherein self-test signal delivery outlet 44, monopole are visited
Pin 901 is connected with self-test signal input port 45 and self-test signal delivery outlet 44 respectively；Self-test signal delivery outlet 44 is adjusted with signal
The rf input interface 32 for managing device 9 is connected, the self-test signal of pulse signal and the clock output radiated for detection sensor；
Self-test signal input port 45 is connected with the conditioner interface 28 of radio-frequency switch array 12, can be input to radio frequency with radiation sensor
The signal of switch arrays.
Power module 15 includes civil power input interface 43 and DC output interfaces 42, wherein DC output interfaces 42 and clock 7,
The power interface 38 of signal acquisition control unit 10, radio-frequency switch array 12 and photoelectric conversion unit 19 is connected, and alternating current is turned
Change DC 12V into, for above-mentioned module for power supply, civil power access interface 43 to be connected with civil power AC220V by commercial power interface 16, incite somebody to action
Civil power is converted into DC12V.
Online center processing unit of checking includes two kinds of external interfaces of optical port 17 and network interface (not marked in figure), wherein network interface
It is connected with the main IED of UHF monitoring systems to be checked, optical port 17 is connected with online unit of checking.Centered on main modular therein
Processing main plate 46, parsing checks unit and the data come UHF monitoring systems to be checked from online, with reference to inherent database and examines
Disconnected rule, provides check result.
Online capacity checking device function is broadly divided into online check unit self-inspection, sensor and checked and detecting system sensitivity school
This three parts of core, wherein, online check unit self-inspection needs to check in sensor to be carried out certainly with before detecting system sensitivity
Inspection.Wherein
Online check unit self-inspection comprises the following steps：
Step S1, system software controls radio-frequency switch array SiIn Si,jKeep the OCU of acquiescence working condition and output end
Connection, SiIn self-test switch STSiIt is connected with pulse source interface.
Step S2, self-inspection pulse output preceding record a period of time, such as 2s ambient noise signal after switch motion.
Step S3, signal acquisition control unit control wave source send signal.
For example, sending repetition rate such as 100HZ, output voltage such as 5V waveform, and continued for some time in output,
Such as after 2S shutdown signal source.
The signal source control interface of signal acquisition control unit and the signal source control interface of pulse signal source are connected, with this
Come control wave source.
Step S4, the self-test switch closed in radio-frequency switch array.
Self-test switch on Si in radio-frequency switch array recovers default conditions；
Step S5, signal acquisition control unit collection amplitude and pulse number.
The signal of pulse signal source output sequentially enters radio-frequency switch array, self-checking unit, signal conditioner, finally quilt
Signal acquisition control unit is gathered.
Step S6, signal acquisition control unit will gather amplitude and pulse number uploads to online check center processing list
Member.
Step S7, the signal that online check center processing unit is returned by contrast and database purchase initial data,
Provide self-detection result.
Online center processing unit of checking includes center processing mainboard, can parse the number from detecting system to be checked
According to, and inherent database and diagnostic rule are combined, provide check results.
Sensor, which is checked, to be comprised the following steps：
Step S1, online center processing unit send instruction through scene by network to online unit of checking.
Online unit of checking sends instructions to signaling control unit, it is controlled the switch shape in radio-frequency switch array
State.
Step S2, signal acquisition control unit control radio-frequency switch array using electric signal, make switch arrays SiIn penetrate
Frequency switch Si,jIt is connected with clock therein, Si+1In RF switch Si+1,jWith conditioner interface AU thereini+1It is connected.
Each radio-frequency switch array has multiple input ports, and each switch arrays of input are Si, Si+1, Si+2, its
In the RF switches of each switch arrays hold switch, such as S for hilted broadsword threeI, j, SI+1, j, SI+2, j, wherein i=1.2.3..., table
Show i-th of OCU field acquisition unit.
Step S3, pulse signal source are to i-th, j sensor Injection Signal, i+1, and j sensor receives signal.
The input connection of sensor and radio-frequency switch array, input is connected to switch arrays Si, Si+1, Si+2, each
RF switch in switch arrays is connected with multiple sensors, such as the S of switch arraysiIt is connected with sensor i, switch arrays
Si+1It is connected with sensor i+1.
Step S3, the ambient noise of signal acquisition control unit collection sensor i+1, j detection, and result is uploaded to
Line checks center processing unit, checks the amplitude that diagnostic software record storage is detected, duration 2s.
After step S4, completion above-mentioned steps, signal acquisition control unit control wave source sends repetition rate for example
100Hz, output voltage such as 10V waveform, are continued for some time, for example 2S.
The signal source control interface connection of the signal source control interface and clock of signal acquisition control unit.
Through conditioner AU after step S5, signal acquisition control unit acquisition pulse source hairi+1The waveform of detection amplification, and will
As a result online check center processing unit is uploaded to, diagnostic software record storage detected amplitude is checked.
J is natural number, such as j=1, first 2,3 ..., 8, progress j=1 situations, Ran Houyi in step S6, said process
Secondary rotation j=2,3 ..., 8 situation is repeatedly performed aforesaid operations.
There are multiple passages in one OCU, such as 8 passages, j=1.2.3 ... 8 represents jth paths.
Step S7, sensor i+2 is checked, repeat above-mentioned 2-5 operating procedure.
Complete sensor i+1, after j is checked, switch arrays SiIn switch recover default conditions, Si+1In RF switch
Si+1,jIt is connected with pulse source interface therein, Si+2In RF switch Si+2,jWith conditioner interface AU thereini+2It is connected.
Step S8, because said process in i=1,2,3 ..., repeat aforesaid operations until complete all sensings of whole station
The check of device, each switch returns to acquiescence working condition.
Injection Signal and ambient noise that step S9, each sensor of contrast are detected, connecting inner database check diagnosis
Software provides check result.
Detecting system, which is checked, to be comprised the following steps：
After step S1, completion sensor are checked, the RF switch in radio-frequency switch array recovers default conditions.
Step S2, signal acquisition control unit receive electric signal.
The mutual dress that online check center processing unit enters traveling optical signal and electric signal by photoelectric conversion unit is changed, then
Electric signal inputs to signal acquisition control unit.
Step S3, signal acquisition control unit control radio-frequency switch array using electric signal, make radio-frequency switch array SiIn
RF switch Si,jIt is connected with pulse source interface, Si+1In RF switch be default conditions.
Each radio-frequency switch array has multiple input ports, and each switch arrays of input are Si, Si+1, Si+2, its
In the RF switches of each switch arrays hold switch, such as S for hilted broadsword threeI, j, SI+1, j, SI+2, j,Wherein i=1.2.3..., is represented
I-th of OCU field acquisition unit.Signal acquisition control unit controls radio-frequency switch array using electric signal
Step S4, detecting system OCU to be checkedi+1,jAmbient noise around collection storage test environment, duration example
Such as it is 2S.
After step S5, completion above-mentioned steps, signal acquisition control unit control wave source sends repetition rate for example
100Hz, output voltage such as 10V waveform, are continued for some time, for example 2S.
Step S6, detecting system OCU to be checkedi+1,jCollection storage is now sent the signal of injection by clock.
Step S7, detecting system OCU to be checkedi+1,jThe result of the ambient noise collected and Injection Signal is passed through into master
IED is transmitted to online check center processing unit, and parses data.
Online center processing unit of checking includes center processing mainboard, can parse the number from detecting system to be checked
According to, and inherent database and diagnostic rule are combined, provide check results.
J is natural number, such as j=1, first 2,3 ..., 8, progress j=1 situations, Ran Houyi in step S8, said process
Secondary rotation j=2,3 ..., 8 situation is repeatedly performed aforesaid operations.
After step S9, completion detecting system i+1, detecting system OCUi+2, j check is continued to complete.
Each input of radio-frequency switch array has a corresponding output end, and each output end is connected to corresponding treat school
Core detecting system OCUi+1,j、OCUi+2,j、OCUi+3,j。
The RF switch in radio-frequency switch array Si is made to recover default conditions, Si+2In RF switch Si+2,jWith it is therein
OCUi+2,jIt is connected, repeats above-mentioned 5-8 operating procedure, completes detecting system OCUi+2,jCheck.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be borrowed
Software is helped to add the mode of required common hardware to realize, naturally it is also possible to which the former is more preferably by hardware, but in many cases
Embodiment.Understood based on such, the portion that technical scheme substantially contributes to prior art in other words
Dividing can be embodied in the form of software product, and the computer software product is stored in the storage medium that can be read, and such as be counted
The floppy disk of calculation machine, hard disk or CD etc., including some instructions to cause a computer equipment (can be personal computer,
Server, or the network equipment etc.) perform method described in each embodiment of the invention.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of online capacity checking device of sensitivity, for verifying superfrequency on-line monitoring system, it is characterised in that including：
Multiple online check units, are connected with the sensor and detecting system OCU to be checked of superfrequency on-line monitoring system；
It is online to check center processing unit, it is connected with the multiple in school check unit by optical cable, receives multiple online checks
The signal that unit is sent, and send control signal to multiple online check units.
2. the online capacity checking device of sensitivity as claimed in claim 1, plurality of online check unit includes：
Signal acquisition control unit, the reception control command that check center processing unit is sent online simultaneously checks center to online
Manage unit and send signal；
Radio-frequency switch array, is connected with signal acquisition control unit, and the control life that center processing unit is sent is checked according to online
The conducting and closing of controlling switch are made, so that the conducting and closing of control wave source and signal conditioner；
Pulse signal source, pulse signal is sent in conducting；
Signal conditioner, pulse signal and the pulse of the sensor radiation of superfrequency on-line monitoring system can be received in conducting
The self-test signal of signal source output, and the signal obtained is transmitted to signal acquisition control unit.
3. a kind of online capacity checking device of sensitivity as claimed in claim 1, wherein during check center processing unit includes online
Heart processing main plate, data of the center processing mainboard parsing from online check unit and superfrequency on-line monitoring system, according to
The diagnostic rule of databases storage, provides check result.
4. the online capacity checking device of sensitivity as claimed in claim 3, wherein radio-frequency switch array include multiple RF switch groups
Into switch arrays and multiple interfaces corresponding with switch：
Input end interface, one end connection sensor, one end connects a hilted broadsword three and holds switch, and the hilted broadsword three holds the switch time-division
Other timesharing is connected with output end interface, pulse source interface and conditioner interface；
End interface is exported, one end connects detecting system to be checked；
Self-inspection interface, is connected with the rf input interface of self-test switch and signal conditioner, and detection signal conditioning module is
No normal work；
Pulse source interface, is connected with the signal output interface of pulse signal source, the amplitude of return pulse signal source output and repetition
The steep-sided pulse waveform of frequency-adjustable；
Conditioner interface, is connected with the self-test signal input port of self-checking unit, the amplitude after conditioner is handled and repetition
The steep-sided pulse waveform of frequency-adjustable is output in self-checking unit；
Control interface, connects the radio-frequency switch array control interface of signal acquisition control unit, and controlling switch array switch is opened
It is disconnected.
5. the online capacity checking device of sensitivity as claimed in claim 2, wherein signal conditioner include rf input interface, detection
Output interface, radio frequency output interface；
Rf input interface is connected with the conditioner interface and self-inspection interface in radio-frequency switch array, the arteries and veins of detection sensor radiation
Rush the self-test signal of signal and clock output；
Detection output interface is connected with the conditioner control interface of signal acquisition control unit, the biography after output amplification demodulator processing
Sensor output signal, is transferred to signal acquisition control unit, and signal acquisition control unit is nursed one's health by this interface come control signal
Device.
6. a kind of online check method of sensitivity, applied to the online capacity checking device of sensitivity as described in claim 1-5, it is special
Levy and be, comprise the following steps：
It is online to check the pulse letter that unit sends the ambient noise and pulse signal source in the surrounding environment of sensor collection
Number be sent to it is online check center processing unit, it is online check center processing unit according to the signal of collection complete it is online check it is single
First self-inspection；
The online pulse signal source for checking unit is to sensor Injection Signal, and the sensor for being injected into signal is sent a signal to and it
Adjacent sensor, it is online to check the ambient noise that unit collects adjacent sensor, it is online check center processing unit according to
The signal of collection completes sensor and checked；
It is online to check the pulse signal that processing unit collects ambient noise, pulse signal source is sent, completed according to the signal of collection
Superfrequency on-line monitoring system sensitivity check.
7. the online check method of sensitivity as claimed in claim 6, wherein checking unit online by around sensor collection
The pulse signal that ambient noise and pulse signal source in environment are sent is sent to online check center processing unit, online school
Core center processing unit completes online check unit self-inspection according to the signal of collection includes following sub-step：
Step S11, the hilted broadsword three of radio-frequency switch array are held switch and are connected with output end, and self-test switch is connected with pulse source interface；
Step S12, collection ambient noise signal；
Step S13, pulse signal source send signal；
Step S14, the self-test switch closed in radio-frequency switch array；
Step S15, collection amplitude and pulse number；
Step S16, the amplitude and pulse number of collection are uploaded to and online check center processing unit；
Step S17, the online signal for checking center processing unit by contrast return of check diagnostic software control and data stock
The initial data of storage, provides self-detection result.
8. the online check method of sensitivity as claimed in claim 6, wherein, the online pulse signal source for checking unit is to sensing
Device Injection Signal, the sensor for being injected into signal sends a signal to sensor adjacent thereto, and online unit of checking collects adjacent
Sensor ambient noise, it is online check center processing unit according to the signal of collection complete sensor check also include it is as follows
Sub-step：
Step S21, switch arrays SiIn RF switch Si,jIt is connected with clock, Si+1In RF switch Si+1,jWith conditioner
Interface AUi+1It is connected.
Step S23, pulse signal source receive ambient noise to i-th, j sensor Injection Signal, i+1, j sensor；
Step S23, collection i+1, the ambient noise that j sensor is detected, signal acquisition control unit upload to result
It is online to check center processing unit, the amplitude that diagnostic software record storage is detected is checked, is continued for some time.
Step S24, signal acquisition control unit control wave source send the ripple with repetition rate, fixed output voltage
Shape, the duration is for a period of time；
Step S25, signal acquisition control unit acquisition pulse source are sending, conditioned device AUi+1The waveform of detection amplification, and will
As a result online check center processing unit is uploaded to, diagnostic software record storage detected amplitude is checked；
Step S26, repeat step S21-S25, after completing to the check of all the sensors, check diagnostic software and provide check knot
Really.
9. the online check method of sensitivity as claimed in claim 8, wherein, online check processing unit collection ambient noise,
The pulse signal that pulse signal source is sent, completing superfrequency on-line monitoring system sensitivity check according to the signal of collection also includes
Following sub-step：
After step S31, completion sensor are checked, the RF switch in radio-frequency switch array recovers default conditions；
Step S32, signal acquisition control unit receive electric signal；
Step S33, signal acquisition control unit control radio-frequency switch array using electric signal, make radio-frequency switch array SiIn penetrate
Frequency switch Si,jIt is connected with pulse source interface, Si+1In RF switch be default conditions；
Step S34, detecting system OCU to be checkedi+1,jThe ambient noise of collecting test environment, is continued for some time；
Step S35, signal acquisition control unit control wave source send the ripple with repetition rate, fixed output voltage
Shape, is continued for some time；
Step S36, detecting system OCU to be checkedi+1,jGather the signal sent by clock；
Step S37, detecting system OCU to be checkedi+1,jThe signal that the ambient noise collected and clock are sent is transmitted to online
Check center processing unit.
10. the online check method of sensitivity as claimed in claim 6, wherein check online center processing unit include optical port and
Two kinds of external interfaces of network interface, wherein network interface are connected with the main IED of UHF monitoring systems to be checked, and optical port checks unit phase with online
Even.
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