CN106330260A - Laboratory test device and method of low-voltage power line carrier performance - Google Patents
Laboratory test device and method of low-voltage power line carrier performance Download PDFInfo
- Publication number
- CN106330260A CN106330260A CN201610712210.2A CN201610712210A CN106330260A CN 106330260 A CN106330260 A CN 106330260A CN 201610712210 A CN201610712210 A CN 201610712210A CN 106330260 A CN106330260 A CN 106330260A
- Authority
- CN
- China
- Prior art keywords
- carrier
- noise
- test
- power line
- oscillograph
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention relates to a laboratory test device and method of low-voltage power line carrier performance, and aims to provide the laboratory test device and method of the low-voltage power line carrier performance which can be used for simulating field environmental factors. The invention adopts a technical scheme as follows: an alternating current power supply is connected with an input end of a variable transformer through four circuit breakers, an output end of the variable transformer is connected with a computer through an isolation unit and a power line sequentially, and the output end of the variable transformer is also electrically connected with a carrier test fixture through an artificial mains network A; the output end of the variable transformer is also connected with a carrier under test fixture through the isolation unit and an artificial mains network B; an RF of the artificial mains network A is connected with an RF of the artificial mains network B through an adjustable attenuator and a power divider; the power divider is connected with a spectrum analyzer and a signal generator; the connection point of the power divider and the artificial mains network B is connected with an oscilloscope; the output end of the variable transformer is respectively connected with the spectrum analyzer, the signal generator and the oscilloscope through the isolation unit and the power line; and the computer is communicated with the carrier test fixture, the oscilloscope, the spectrum analyzer and the signal generator through a communication line.
Description
Technical field
The present invention relates to a kind of laboratory test device and the method for low voltage power line carrier performance.It is applicable to power information
The technical testing field of the low voltage power line carrier gathered.
Background technology
Along with the whole world is increasingly stronger to the needs of power information concentrated collection, so needing one to stablize, lead to reliably
News technology, supports Utilities Electric Co. and divides the collection of the power information of electric supply meter data, spatial load forecasting, data monitoring, line loss
The AMI/AMR demands such as analysis.Present stage, low voltage power line carrier is the communication being applied to concentrator/gateway to the main flow of ammeter end
Mode, is widely used in solving the Communication of last 1 kilometer of AMI/AMR.
The tremendous influence loaded by resident and industrial user due to electric lines of force, the access amount of load is different, produces
Noise different, the load impedance of one day different periods, noise jamming etc. can be caused all may to be not quite similar.Research statistics, electricity
Line of force load impedance changes between 0.1 Ω～100 Ω, is one to the communication effect of low voltage power line carrier and examines greatly
Test.
In order to improve the low voltage power line carrier adaptation ability to variable load, increase low voltage power line carrier to noise
Capacity of resisting disturbance, it would be desirable to the test side of the laboratory simulation site environment of a kind of low voltage power line carrier network and performance
Method, carries out the test of quantization property, progressively improves carrier communication network the network of low voltage power line carrier and performance
Vigorousness also improves the communication performance of carrier wave, solves owing to load change, noise jamming etc. are to low voltage power line carrier communication effect
Fruit affect problem.
Summary of the invention
The technical problem to be solved in the present invention is: for the problem of above-mentioned existence, it is provided that one can simulated field environment because of
The laboratory test device of the low voltage power line carrier performance of element and method.
The technical solution adopted in the present invention is: the laboratory test device of a kind of low voltage power line carrier performance, and it is special
Levy and be: there is alternating current power supply, computer, carrier test tool and carrier wave and treat measurement fixture；
Wherein alternating current power supply connects adjustable transformer input through four circuit breakers, and adjustable transformer outfan is through isolated location
Connecting computer by power line, adjustable transformer outfan also electrically connects carrier test tool through artificial mains network A；Described
Adjustable transformer outfan also connects carrier wave through isolated location and artificial mains network B and treats measurement fixture；
The RF of described artificial mains network A connects the RF of artificial mains network B through adjustable attenuator and power divider；
Spectrum analyzer and signal generator it is connected on described power divider；Described power divider and artificial power net
Network B junction point connects oscillograph；
Described adjustable transformer outfan connects described spectrum analyzer, described signal respectively through isolated location and power line
Generator and described oscillograph；
Described computer is by connection and carrier test tool, oscillograph, spectrum analyzer and signal generator communication.
Described carrier test tool comprises test fixture and test carrier module.
Described carrier wave treats that measurement fixture comprises ammeter and carrier module to be measured.
Described isolated location is made up of isolating transformer and wave filter.
Apply the method that the laboratory test device of described low voltage power line carrier performance carries out testing, it is characterised in that:
A, test the receiving sensitivity of unidirectional carrier module, operating frequency and transmit power；
A1, disconnect four circuit breakers；
A2, regulation adjustable transformer are to indicating 220V；
A3, close four circuit breakers；
A4, regulation adjustable attenuator to 10dB；
A5, the carrier performance test software started on computer, make carrier test tool send data；
A6, spectrum analyzer catch corresponding frequency spectrum, and oscillograph catches corresponding waveform, analyze carrier test tool and launch
Amplitude and waveform whether meet test condition, if met, then remove oscillograph；If do not met, check relevant device, directly
To meeting；
A7, startup carrier performance test software, make carrier test tool enter copy reading data pattern；
A8, regulation adjustable attenuator, until carrier performance test software cannot receive the data that carrier wave treats that measurement fixture is replied；
A9, the numerical value of record adjustable attenuator now, this value through adding the decay of power divider, is then this carrier wave
The receiving sensitivity of module；
A10, spectrum analyzer catch carrier wave and treat the transmission carrier spectrum of measurement fixture, the operating frequency of available carrier module
And transmit power；
The ratio of B, signal calculated and noise；
B1, disconnect four circuit breakers；
B2, regulation adjustable transformer are to indicating 220V；
B3, close four circuit breakers；
B4, regulation adjustable attenuator to 10dB；
B5, the carrier performance test software started on computer, make carrier test tool send data；
B6, spectrum analyzer catch corresponding frequency spectrum, and oscillograph catches corresponding waveform, analyze carrier test tool and launch
Amplitude and waveform whether meet test condition, if met, then remove oscillograph, record corresponding carrier wave send amplitude；As
Fruit does not meets, and checks relevant device, until meeting；
B7, startup carrier performance test software, make carrier test tool enter copy reading data pattern；
B8, regulation adjustable attenuator are 20dB；
B9, unlatching signal generator, imported to signal generator by noise by computer, injected by signal generator
In power divider；Regulate corresponding noise amplitude, until the Packet Error Ratio of carrier performance test software stable < in 10%,
Record present noise amplitude, calculate corresponding signal to noise ratio.
Described artificial mains network A is 50 Ω load impedances, and artificial mains network B is 50 Ω load impedances.
Described artificial mains network A is 50 Ω load impedances, and artificial mains network B is 2 Ω load impedances.
Described carrier wave treats that measurement fixture is single phase power supply.
Described carrier wave treats that measurement fixture is three phase supply.
Described noise is that noise is recorded at white Gaussian noise, sine wave, impulsive noise or oscillograph scene.
The invention has the beneficial effects as follows: the present invention provides the one can the external world such as simulated field load impedance, on-the-spot noise
The laboratory testing method of factor, completes the test of the simulated field environment of low-voltage power carrier communication performance, thus quickly
The weak sport technique segment of the ability to communicate of located carriers, and improved.
Accompanying drawing explanation
Fig. 1 is the performance testing device overall structure schematic diagram of embodiment mesolow power carrier communication.
Detailed description of the invention
As it is shown in figure 1, the laboratory test device of the present embodiment mesolow power line carrier performance has four circuit breakers 1
Individual, adjustable transformer 1,1, computer, carrier test tool 1, artificial mains network 2 (artificial mains network A and B),
Isolated location 3, adjustable attenuator 1, power divider 1, signal generator 1, spectrum analyzer 1, oscillograph 1
Individual, carrier wave treats measurement fixture 1.
Alternating current power supply connects adjustable transformer input through four road disconnect switchs, and outfan is connected with each isolated location,
Alternating current power supply is provided for system.Artificial mains network A and B is powered by an isolated location respectively, the RF of artificial mains network A
Being connected with adjustable attenuator, the RF of artificial mains network B is connected with power divider, and adjustable attenuator and power divider
Being connected, be wherein connected to spectrum analyzer and signal generator on power divider, power divider is connected with artificial mains network B
Oscillograph is connect at Dian.Artificial mains network A and B connects carrier test tool respectively and carrier wave treats measurement fixture.Computer is by logical
News line and carrier test tool, oscillograph, signal generator, spectrum analyzer communication.Spectrum analyzer, signal generator and show
Ripple device connects isolated location through power line, isolated location power.
In the present embodiment, carrier test tool comprises 1 test fixture and 1 test carrier module；Artificial mains network A
Be 50 Ω impedances, artificial mains network B be 50 Ω or 2 Ω impedances；Isolated location comprises 1 isolating transformer and 1 wave filter；
Carrier wave treat that measurement fixture comprises 1 ammeter and 1 carrier module to be measured.
In this example, four circuit breakers are for the protection of system and switch electricity, it is ensured that when the excessive fault of electric current occurs in system
Play power-off protection effect.Adjustable transformer for adjusting the supply voltage of system, test system can be supported at 220V or
Steady operation under the running voltage of 120V, owing to abroad there being the running voltage of 120V, comes so needing to simulate 120V electric power system
Test carrier communication performance.Computer operation voltage is at AC110V～AC240V, for installing the PC of carrier performance test system
Software, by PC software control carrier test tool, the enforcement of control performance test event, statistic property test event relevant
Data, derivation correlated performance analytical statement etc.；Also complete oscillograph, signal generator, the control of spectrum analyzer, data are led
Go out, waveform importing/derivation etc..Carrier test tool has been used for the data interaction with carrier wave, and the carrier module wherein comprised is
The host node of system, for carrying out data interaction with carrier module to be measured.Isolated location is made up of isolating transformer and wave filter,
Play buffer action, and filter the high-frequency signal in electrical network, it is to avoid introduce the interference of electrical network and cause systematic quantification test the most true
Qualitative.Adjustable attenuator is for the signal attenuation multiple adjusting carrier test tool and carrier wave is treated between measurement fixture.Power divider
Input signal energy can be evenly distributed to multiple port, between port and keep height isolation, this system has used one
Go out the power divider and of two and go out the power divider of three.Oscillograph is used for the recording of low-voltage power line scene noise, and can
The amplitude of carrier signal, waveform etc. are captured for analyzing.Signal generator is for exporting recording or simulated field
Noise jamming, the anti-interference performance of test carrier wave.Noise is divided into records the on-the-spot waveform of low voltage power line carrier operation and letter
The noises such as the white Gaussian noise of number generator simulation, sine wave, pulse.Frequency when spectrum analyzer is for catching carrier communication
Spectrum, analyzes its corresponding amplitude, frequency etc..Carrier wave treats that measurement fixture comprises ammeter and carrier wave module to be measured, for the performance of carrier wave
Test.
The concrete method of testing of the present embodiment is as follows:
S1, under 50 Ω load impedance simulated environments, the receiving sensitivity of single-phase carrier module；
S2, under simulated environment, the operating frequency of single-phase carrier module；
S3, under 50 Ω load impedance simulated environments, the transmit power of single-phase carrier module:
1) four circuit breakers, are disconnected；
2), wherein artificial mains network A and artificial mains network B be 50 Ω load impedances, treat that measurement fixture is single-phase confession
Electricity；
3), regulation adjustable transformer is to indicating 220V；
4) four circuit breakers, are closed；
5), regulation adjustable damping is to 10dB；
6), start carrier performance test software, make carrier test tool send data；
7), spectrum analyzer catches corresponding frequency spectrum, the oscillograph corresponding waveform of seizure, analysis carrier test tool transmitting
Amplitude and waveform whether meet test condition, if met, then remove oscillograph；If do not met, check relevant device, directly
To meeting；
8), start carrier performance test software, make carrier test tool enter copy reading data pattern；
9), adjustable attenuator is regulated, until carrier performance test software cannot receive the data that carrier wave treats that measurement fixture is replied；
10), the numerical value of record adjustable attenuator now, this value through adding the decay of power distribution, is then this carrier wave
The receiving sensitivity of module；
11), spectrum analyzer catch carrier wave and treat the transmission carrier spectrum of measurement fixture, just can get the work frequency of carrier module
Rate and transmit power；
12), regulation adjustable transformer be 120V to output voltage, repeat the above steps.
S4, under 2 Ω load impedance simulated environments, the receiving sensitivity of single-phase carrier module；
S5, under 2 Ω load impedance simulated environments, the transmit power of single-phase carrier module:
1) four circuit breakers, are disconnected；
2), wherein artificial mains network A be 50 Ω load impedances, artificial mains network B is 2 Ω load impedances, to be measured controls
Tool is single phase power supply；
3), regulation adjustable transformer is to indicating 220V；
4) four circuit breakers, are closed；
5), regulation adjustable damping is to 10dB；
6), start carrier performance test software, make carrier test tool send data；
7), spectrum analyzer catches corresponding frequency spectrum, the oscillograph corresponding waveform of seizure, analysis carrier test tool transmitting
Amplitude and waveform whether meet test condition, if met, then remove oscillograph；If do not met, check relevant device, directly
To meeting；
8), start carrier performance test software, make carrier test tool enter copy reading data pattern；
9), adjustable attenuator is regulated, until carrier performance test software cannot receive the data that carrier wave treats that measurement fixture is replied；
10), the numerical value of record adjustable attenuator now, this value through adding the decay of power distribution, is then this carrier wave
The receiving sensitivity of module；
11), spectrum analyzer catch carrier wave and treat the transmission carrier spectrum of measurement fixture, just can get the work frequency of carrier module
Rate and transmit power；
12), regulation adjustable transformer be 120V to output voltage, repeat the above steps.
S6, at 50 Ω load impedances and add and on-the-spot record under noise situations Imitating environment, single-phase carrier module
Signal to noise ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S7, at 50 Ω load impedances and in the case of adding white Gaussian noise under simulated environment, the letter of single-phase carrier module
Make an uproar ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S8, at 50 Ω load impedances and in the case of adding sine wave under simulated environment, the noise of single-phase carrier module
Ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S9, at 50 Ω load impedances and add under impulse noise conditions Imitating environment, the noise of single-phase carrier module
Ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise:
1) four circuit breakers, are disconnected；
2), wherein artificial mains network A and artificial mains network B be 50 Ω load impedances, treat that measurement fixture is single-phase confession
Electricity；
3), regulation adjustable transformer is to indicating 220V；
4) four circuit breakers, are closed；
5), regulation adjustable damping is to 10dB；
6), start carrier performance test software, make carrier test tool send data；
7), spectrum analyzer catches corresponding frequency spectrum, the oscillograph corresponding waveform of seizure, analysis carrier test tool transmitting
Amplitude and waveform whether meet test condition, if met, then remove oscillograph, record corresponding carrier wave send amplitude；As
Fruit does not meets, and checks relevant device, until meeting；
8), start carrier performance test software, make carrier test tool enter copy reading data pattern；
9), regulation adjustable attenuator is 20dB；
10), open signal generator, oscillograph scene recording noise is imported to signal generator by computer, passes through
Signal generator is injected in power divider；Regulate corresponding noise amplitude, until the Packet Error Ratio of carrier performance test software
Stable < in 10%, recording present noise amplitude, calculate corresponding signal to noise ratio；
11), according to above step, noise is changed to successively white Gaussian noise, sine wave, impulsive noise, and records phase
The noise amplitude answered, calculates corresponding signal to noise ratio；
12), regulation adjustable transformer be 120V to output voltage, repeat the above steps.
S10, at 2 Ω load impedances and add and on-the-spot record under noise situations Imitating environment, single-phase carrier module
Signal to noise ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S11, at 2 Ω load impedances and in the case of adding white Gaussian noise under simulated environment, the letter of single-phase carrier module
Make an uproar ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S12, at 2 Ω load impedances and in the case of adding existing sine wave under simulated environment, the noise of single-phase carrier module
Ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S13, at 2 Ω load impedances and add under impulse noise conditions Imitating environment, the noise of single-phase carrier module
Ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
1) four circuit breakers, are disconnected；
2), wherein artificial mains network A be 50 Ω load impedances, artificial mains network B is 2 Ω load impedances, to be measured controls
Tool is single phase power supply；
3), regulation adjustable transformer is to indicating 220V；
4) four circuit breakers, are closed；
5), regulation adjustable damping is to 10dB；
6), start carrier performance test software, make carrier test tool send data；
7), spectrum analyzer catches corresponding frequency spectrum, the oscillograph corresponding waveform of seizure, analysis carrier test tool transmitting
Amplitude and waveform whether meet test condition, if met, then remove oscillograph, record corresponding carrier wave send amplitude；As
Fruit does not meets, and checks relevant device, until meeting；
8), start carrier performance test software, make carrier test tool enter copy reading data pattern；
9), regulation adjustable attenuator is 20dB；
10), open signal generator, oscillograph scene recording noise is imported to signal generator by computer, passes through
Signal generator is injected in power divider；Regulate corresponding noise amplitude, until the Packet Error Ratio of carrier performance test software
Stable < in 10%, recording present noise amplitude, calculate corresponding signal to noise ratio；
11), according to above step, noise is changed to successively white Gaussian noise, sine wave, impulsive noise, and records phase
The noise amplitude answered, calculates corresponding signal to noise ratio；
12), regulation adjustable transformer be 120V to output voltage, repeat the above steps.
S14, under 50 Ω load impedance simulated environments, the receiving sensitivity of Three Phase Carrier Based module；
S15, under simulated environment, the operating frequency of Three Phase Carrier Based module；
S16, under 50 Ω load impedance simulated environments, the transmit power of Three Phase Carrier Based module:
1) four circuit breakers, are disconnected；
2), wherein artificial mains network A and artificial mains network B be 50 Ω load impedances, treat measurement fixture be three-phase supply
Electricity；
3), regulation adjustable transformer is to indicating 220V；
4) four circuit breakers, are closed；
5), regulation adjustable damping is to 10dB；
6), start carrier performance test software, make carrier test tool send data；
7), spectrum analyzer catches corresponding frequency spectrum, the oscillograph corresponding waveform of seizure, analysis carrier test tool transmitting
Amplitude and waveform whether meet test condition, if met, then remove oscillograph；If do not met, check relevant device, directly
To meeting；
8), start carrier performance test software, make carrier test tool enter copy reading data pattern；
9), adjustable attenuator is regulated, until carrier performance test software cannot receive the data that carrier wave treats that measurement fixture is replied；
10), the numerical value of record adjustable attenuator now, this value through adding the decay of power distribution, is then this carrier wave
The receiving sensitivity of module；
11), spectrum analyzer catch carrier wave and treat the transmission carrier spectrum of measurement fixture, just can get the work frequency of carrier module
Rate and transmit power；
12), regulation adjustable transformer be 120V to output voltage, repeat the above steps.
S17, under 2 Ω load impedance simulated environments, the receiving sensitivity of Three Phase Carrier Based module；
S18, under 2 Ω load impedance simulated environments, the transmit power of Three Phase Carrier Based module；
1) four circuit breakers, are disconnected；
2), wherein artificial mains network A be 50 Ω load impedances, artificial mains network B is 2 Ω load impedances, to be measured controls
Tool is three phase supply；
3), regulation adjustable transformer is to indicating 220V；
4) four circuit breakers, are closed；
5), regulation adjustable damping is to 10dB；
6), start carrier performance test software, make carrier test tool send data；
7), spectrum analyzer catches corresponding frequency spectrum, the oscillograph corresponding waveform of seizure, analysis carrier test tool transmitting
Amplitude and waveform whether meet test condition, if met, then remove oscillograph；If do not met, check relevant device, directly
To meeting；
8), start carrier performance test software, make carrier test tool enter copy reading data pattern；
9), adjustable attenuator is regulated, until carrier performance test software cannot receive the data that carrier wave treats that measurement fixture is replied；
10), the numerical value of record adjustable attenuator now, this value through adding the decay of power distribution, is then this carrier wave
The receiving sensitivity of module；
11), spectrum analyzer catch carrier wave and treat the transmission carrier spectrum of measurement fixture, just can get the work frequency of carrier module
Rate and transmit power；
12), regulation adjustable transformer be 120V to output voltage, repeat the above steps.
S19, at 50 Ω load impedances and add and on-the-spot record under noise situations Imitating environment, Three Phase Carrier Based module
Signal to noise ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S20, at 50 Ω load impedances and in the case of adding white Gaussian noise under simulated environment, Three Phase Carrier Based module
Signal to noise ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S21, at 2 Ω load impedances and add and on-the-spot record under noise situations Imitating environment, Three Phase Carrier Based module
Signal to noise ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S22, at 50 Ω load impedances and in the case of adding sine wave under simulated environment, the noise of Three Phase Carrier Based module
Ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S23, at 50 Ω load impedances and add under impulse noise conditions Imitating environment, the letter of Three Phase Carrier Based module
Make an uproar ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise:
1) four circuit breakers, are disconnected；
2), wherein artificial mains network A and artificial mains network B be 50 Ω load impedances, treat measurement fixture be three-phase supply
Electricity；
3), regulation adjustable transformer is to indicating 220V；
4) four circuit breakers, are closed；
5), regulation adjustable damping is to 10dB；
6), start carrier performance test software, make carrier test tool send data；
7), spectrum analyzer catches corresponding frequency spectrum, the oscillograph corresponding waveform of seizure, analysis carrier test tool transmitting
Amplitude and waveform whether meet test condition, if met, then remove oscillograph, record corresponding carrier wave send amplitude；As
Fruit does not meets, and checks relevant device, until meeting；
8), start carrier performance test software, make carrier test tool enter copy reading data pattern；
9), regulation adjustable attenuator is 20dB；
10), open signal generator, oscillograph scene recording noise is imported to signal generator by computer, passes through
Signal generator is injected in power divider；Regulate corresponding noise amplitude, until the Packet Error Ratio of carrier performance test software
Stable < in 10%, recording present noise amplitude, calculate corresponding signal to noise ratio；
11), according to above step, noise is changed to successively white Gaussian noise, sine wave, impulsive noise, and records phase
The noise amplitude answered, calculates corresponding signal to noise ratio.
S24, at 2 Ω load impedances and in the case of adding white Gaussian noise under simulated environment, the letter of Three Phase Carrier Based module
Make an uproar ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S25, at 2 Ω load impedances and in the case of adding existing sine wave under simulated environment, the noise of Three Phase Carrier Based module
Ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise；
S26, at 2 Ω load impedances and add under impulse noise conditions Imitating environment, the noise of Three Phase Carrier Based module
Ratio: this value be Packet Error Ratio < in the case of 10%, signal and the ratio of noise:
1) four circuit breakers, are disconnected；
2), wherein artificial mains network A be 50 Ω load impedances, artificial mains network B is 2 Ω load impedances, to be measured controls
Tool is three phase supply；
3), regulation adjustable transformer is to indicating 220V；
4) four circuit breakers, are closed；
5), regulation adjustable damping is to 10dB；
6), start carrier performance test software, make carrier test tool send data；
7), spectrum analyzer catches corresponding frequency spectrum, the oscillograph corresponding waveform of seizure, analysis carrier test tool transmitting
Amplitude and waveform whether meet test condition, if met, then remove oscillograph, record corresponding carrier wave send amplitude；As
Fruit does not meets, and checks relevant device, until meeting；
8), start carrier performance test software, make carrier test tool enter copy reading data pattern；
9), regulation adjustable attenuator is 20dB；
10), open signal generator, oscillograph scene recording noise is imported to signal generator by computer, passes through
Signal generator is injected in power divider；Regulate corresponding noise amplitude, until the Packet Error Ratio of carrier performance test software
Stable < in 10%, recording present noise amplitude, calculate corresponding signal to noise ratio；
11), according to above step, noise is changed to successively white Gaussian noise, sine wave, impulsive noise, and records phase
The noise amplitude answered, calculates corresponding signal to noise ratio；
12), regulation adjustable transformer be 120V to output voltage, repeat the above steps.
Certainly, described above not limitation of the present invention, the present invention is also not limited to the example above, the art
Those of ordinary skill, within the scope of the invention, the change made, adds or replaces, all should belong to protection scope of the present invention.
Claims (10)
1. the laboratory test device of a low voltage power line carrier performance, it is characterised in that: have alternating current power supply, computer,
Carrier test tool and carrier wave treat measurement fixture；
Wherein alternating current power supply connects adjustable transformer input, adjustable transformer outfan warp after isolated location through four circuit breakers
Power line connects computer, and adjustable transformer outfan also electrically connects carrier test tool through artificial mains network A；Described adjustable
Transformator outfan also connects carrier wave through isolated location and artificial mains network B and treats measurement fixture；
The RF of described artificial mains network A connects the RF of artificial mains network B through adjustable attenuator and power divider；
Spectrum analyzer and signal generator it is connected on described power divider；Described power divider and artificial mains network B
Junction point connects oscillograph；
Described adjustable transformer outfan connects described spectrum analyzer respectively through isolated location and power line, described signal occurs
Device and described oscillograph；
Described computer is by connection and carrier test tool, oscillograph, spectrum analyzer and signal generator communication.
The laboratory test device of low voltage power line carrier performance the most according to claim 1, it is characterised in that: described load
Ripple measurement jig comprises test fixture and test carrier module.
The laboratory test device of low voltage power line carrier performance the most according to claim 1, it is characterised in that: described load
Ripple treats that measurement fixture comprises ammeter and carrier module to be measured.
The laboratory test device of low voltage power line carrier performance the most according to claim 1, it is characterised in that: described every
It is made up of isolating transformer and wave filter from unit.
5. the laboratory test device of low voltage power line carrier performance described in application claim 1 carries out the method tested, and it is special
Levy and be:
A, test the receiving sensitivity of unidirectional carrier module, operating frequency and transmit power；
A1, disconnect four circuit breakers；
A2, regulation adjustable transformer are to indicating 220V；
A3, close four circuit breakers；
A4, regulation adjustable attenuator to 10dB；
A5, the carrier performance test software started on computer, make carrier test tool send data；
A6, spectrum analyzer catch corresponding frequency spectrum, and oscillograph catches corresponding waveform, analyze the width that carrier test tool is launched
Whether degree and waveform meet test condition, if met, then remove oscillograph；If do not met, check relevant device, until symbol
Only it is combined into；
A7, startup carrier performance test software, make carrier test tool enter copy reading data pattern；
A8, regulation adjustable attenuator, until carrier performance test software cannot receive the data that carrier wave treats that measurement fixture is replied；
A9, the numerical value of record adjustable attenuator now, this value through adding the decay of power divider, is then this carrier module
Receiving sensitivity；
A10, spectrum analyzer catch carrier wave and treat the transmission carrier spectrum of measurement fixture, can get the operating frequency of carrier module and send out
Send power；
The ratio of B, signal calculated and noise；
B1, disconnect four circuit breakers；
B2, regulation adjustable transformer are to indicating 220V；
B3, close four circuit breakers；
B4, regulation adjustable attenuator to 10dB；
B5, the carrier performance test software started on computer, make carrier test tool send data；
B6, spectrum analyzer catch corresponding frequency spectrum, and oscillograph catches corresponding waveform, analyze the width that carrier test tool is launched
Whether degree and waveform meet test condition, if met, then remove oscillograph, record corresponding carrier wave and send amplitude；If no
Meet, check relevant device, until meeting；
B7, startup carrier performance test software, make carrier test tool enter copy reading data pattern；
B8, regulation adjustable attenuator are 20dB；
B9, unlatching signal generator, import to signal generator by noise by computer, be injected into merit by signal generator
In rate allotter；Regulate corresponding noise amplitude, until the Packet Error Ratio of carrier performance test software stable < in 10%, record
Present noise amplitude, calculates corresponding signal to noise ratio.
Method the most according to claim 5, it is characterised in that: described artificial mains network A is 50 Ω load impedances, manually
Electric power network B is 50 Ω load impedances.
Method the most according to claim 5, it is characterised in that: described artificial mains network A is 50 Ω load impedances, manually
Electric power network B is 2 Ω load impedances.
8. according to the method described in claim 6 or 7, it is characterised in that: described carrier wave treats that measurement fixture is single phase power supply.
9. according to the method described in claim 6 or 7, it is characterised in that: described carrier wave treats that measurement fixture is three phase supply.
Method the most according to claim 5, it is characterised in that: described noise is that white Gaussian noise, sine wave, pulse are made an uproar
Noise is recorded at sound or oscillograph scene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712210.2A CN106330260B (en) | 2016-08-23 | 2016-08-23 | The laboratory test device and method of low voltage power line carrier performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712210.2A CN106330260B (en) | 2016-08-23 | 2016-08-23 | The laboratory test device and method of low voltage power line carrier performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106330260A true CN106330260A (en) | 2017-01-11 |
| CN106330260B CN106330260B (en) | 2019-05-31 |
Family
ID=57742741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610712210.2A Active CN106330260B (en) | 2016-08-23 | 2016-08-23 | The laboratory test device and method of low voltage power line carrier performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106330260B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919928A (en) * | 2017-12-20 | 2018-04-17 | 国网江苏省电力有限公司电力科学研究院 | A kind of carrier signal test device and test method |
| CN108631819A (en) * | 2017-03-15 | 2018-10-09 | 国网四川省电力公司电力科学研究院 | Power line carrier noise jamming tests system and test method |
| CN108768451A (en) * | 2018-04-28 | 2018-11-06 | 华立科技股份有限公司 | power line carrier integrated test system and test method |
| CN108964703A (en) * | 2017-05-18 | 2018-12-07 | 芯迪半导体科技（上海）有限公司 | A kind of test device of carrier telecommunication |
| CN110581720A (en) * | 2019-09-04 | 2019-12-17 | 武汉长光科技有限公司 | testing device, system and testing method for converting G.hn PLC power line into coaxial line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404523A (en) * | 2008-11-19 | 2009-04-08 | 南京新联电子股份有限公司 | Low-voltage powerline carrier communication experiment method and its experiment system |
| CN101776740A (en) * | 2010-01-19 | 2010-07-14 | 云南电网公司 | Electric energy metering automation simulation laboratory |
| CN201966909U (en) * | 2011-01-24 | 2011-09-07 | 南京致德软件科技有限公司 | Integrated test system for low-voltage narrowband power line carrier communication |
| CN102255637A (en) * | 2011-07-15 | 2011-11-23 | 中国电力科学研究院 | Carrier communication test equipment |
| CN104820201A (en) * | 2015-04-23 | 2015-08-05 | 国网上海市电力公司 | Acquisition terminal performance index evaluation method |
-
2016
- 2016-08-23 CN CN201610712210.2A patent/CN106330260B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404523A (en) * | 2008-11-19 | 2009-04-08 | 南京新联电子股份有限公司 | Low-voltage powerline carrier communication experiment method and its experiment system |
| CN101776740A (en) * | 2010-01-19 | 2010-07-14 | 云南电网公司 | Electric energy metering automation simulation laboratory |
| CN201966909U (en) * | 2011-01-24 | 2011-09-07 | 南京致德软件科技有限公司 | Integrated test system for low-voltage narrowband power line carrier communication |
| CN102255637A (en) * | 2011-07-15 | 2011-11-23 | 中国电力科学研究院 | Carrier communication test equipment |
| CN104820201A (en) * | 2015-04-23 | 2015-08-05 | 国网上海市电力公司 | Acquisition terminal performance index evaluation method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631819A (en) * | 2017-03-15 | 2018-10-09 | 国网四川省电力公司电力科学研究院 | Power line carrier noise jamming tests system and test method |
| CN108964703A (en) * | 2017-05-18 | 2018-12-07 | 芯迪半导体科技（上海）有限公司 | A kind of test device of carrier telecommunication |
| CN108964703B (en) * | 2017-05-18 | 2023-10-20 | 芯迪半导体科技（上海）有限公司 | Testing device of power line carrier communication equipment |
| CN107919928A (en) * | 2017-12-20 | 2018-04-17 | 国网江苏省电力有限公司电力科学研究院 | A kind of carrier signal test device and test method |
| CN108768451A (en) * | 2018-04-28 | 2018-11-06 | 华立科技股份有限公司 | power line carrier integrated test system and test method |
| CN108768451B (en) * | 2018-04-28 | 2021-07-20 | 华立科技股份有限公司 | Power line carrier integrated test system and test method |
| CN110581720A (en) * | 2019-09-04 | 2019-12-17 | 武汉长光科技有限公司 | testing device, system and testing method for converting G.hn PLC power line into coaxial line |
| CN110581720B (en) * | 2019-09-04 | 2021-05-18 | 武汉长光科技有限公司 | Testing device, system and testing method for converting G.hn PLC power line into coaxial line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106330260B (en) | 2019-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106330260A (en) | Laboratory test device and method of low-voltage power line carrier performance | |
| US6141634A (en) | AC power line network simulator | |
| CN102255637B (en) | Carrier communication test equipment | |
| US9615270B2 (en) | Intelligent power utilization communication product detecting system | |
| CN101776740B (en) | Electric energy metering automation simulation laboratory | |
| CN101902255B (en) | Simulation test device and method of power line carrier communication | |
| CN205070993U (en) | Power line communication module testing arrangement | |
| CN108259100B (en) | Multi-meter-in-one information acquisition communication simulation test system | |
| CN204119227U (en) | Intelligent electric meter carrier communication module test gimulator | |
| CN110995314A (en) | Low-voltage broadband power line carrier communication comprehensive test system | |
| CN103149528B (en) | System and method for testing transducer PCBA (printed circuit board assembly) | |
| CN104202067A (en) | Testing simulator for intelligent electric meter carrier communication module | |
| CN209570690U (en) | A kind of test macro | |
| CN107294562B (en) | Low-voltage power carrier module simulation detection device | |
| CN102722463A (en) | System for acquiring and processing multi-type information based on cPCI bus | |
| CN205901757U (en) | Carrier communication module intelligent detecting system | |
| CN106789328A (en) | Low-voltage power line bandwidth carrier constructing communication network assesses emulation platform | |
| CN106341160B (en) | The laboratory test device and method of low voltage power line carrier network | |
| CN108155921A (en) | System is tested in a kind of power wire broadband carrier communication networking | |
| CN103728510B (en) | Excitation unit on-site test system and method | |
| CN102393511A (en) | Online error verification device and test method for electronic electric energy meter rapid transient pulse train | |
| CN201780364U (en) | Simulation detecting system of electric energy meter data acquisition device | |
| CN207022002U (en) | Power line carrier module analoging detecting device | |
| CN105467348A (en) | Data acquisition system, virtual verification system and method for fiber current transformer | |
| CN106093834A (en) | A kind of Stress superposition test platform based on table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210202 Address after: No. 1418, Moganshan Road, Gongshu District, Hangzhou, Zhejiang 310000 (Shangcheng Industrial Park) Patentee after: HANGZHOU HEXING ELECTRICAL Co.,Ltd. Patentee after: NINGBO HENGLIDA TECHNOLOGY Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310011 Moganshan Road No. 1418 (City Industrial Park) Patentee before: HANGZHOU HEXING ELECTRICAL Co.,Ltd. Patentee before: NINGBO HENGLIDA TECHNOLOGY Co.,Ltd. Patentee before: HUNAN HAIXING ELECTRICAL APPLIANCE Co.,Ltd. |