CN107707276A - A kind of consumption detection device based on broadband power line carrier communication unit - Google Patents
A kind of consumption detection device based on broadband power line carrier communication unit Download PDFInfo
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- CN107707276A CN107707276A CN201711095443.3A CN201711095443A CN107707276A CN 107707276 A CN107707276 A CN 107707276A CN 201711095443 A CN201711095443 A CN 201711095443A CN 107707276 A CN107707276 A CN 107707276A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
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Abstract
The invention discloses a kind of consumption detection device based on broadband power line carrier communication unit, the consumption detection device includes：Power source loads unit；DC power test cell, the DC power test cell test the first data of the electric energy meter communication unit, test the second data of the concentrator communication unit；AC power dissipation test cell, the AC power dissipation test cell test the 3rd data of the electric energy meter communication unit, test the 4th data of the concentrator communication unit；Micro-control unit, the micro-control unit receives and calculates first data, second data, the 3rd data and the 4th data；Display unit；Network communication unit.Solve of the prior art because the dynamic power consumption time of power wire broadband carrier module in the prior art is short and AC power dissipation is small, so as to cause equipment dynamic response low, AC power dissipation test is inaccurate, can not be applied to the technical problem of the test of power wire broadband carrier communication unit.
Description
Technical field
It is more particularly to a kind of to be based on broadband power line carrier communication list the present invention relates to power-line carrier communication field
The consumption detection device of member.
Background technology
The appearance of broadband power line carrier communication (BPLC) technology, improves power line data transmission speed, is state's household electrical appliances
The intelligent grid construction project and four tables unification engineering that net emphasis promotes provide power-assisted.The test of BPLC module dissipations is power consumer
One of important indicator in power information acquisition system inspection technology specification, to the quiet of BPLC modules in communication unit technology specification
State power consumption and dynamic power consumption have specified in more detail.The testing power consumption test main study subject for carrier module is narrow at home
Band module.
But present inventor has found above-mentioned prior art extremely during technical scheme in realizing the embodiment of the present application
Following technical problem less be present：
Because the dynamic power consumption time of power wire broadband carrier module in the prior art is short and AC power dissipation is small, so as to cause
Equipment dynamic response is low, and AC power dissipation test is inaccurate, can not be applied to the skill of the test of power wire broadband carrier communication unit
Art problem.
The content of the invention
The embodiments of the invention provide a kind of consumption detection device based on broadband power line carrier communication unit, to solve
Certainly the dynamic power consumption time of power wire broadband carrier module is short in the prior art and AC power dissipation is small, so as to cause equipment dynamic to ring
Should be low, AC power dissipation test is inaccurate, can not be applied to the technical problem of the test of power wire broadband carrier communication unit, realize
Test result is accurate, cost is relatively low, it is good to take just property, available for program control and automatic test broadband power line carrier communication unit
Power consumption technique effect.
In order to solve the above problems, the embodiments of the invention provide a kind of work(based on broadband power line carrier communication unit
Detection means is consumed, the consumption detection device includes：
Power source loads unit, the power source loads unit connection electric energy meter communication unit and concentrator communication unit；
DC power test cell, the DC power test cell test the first number of the electric energy meter communication unit
According to the DC power test cell tests the second data of the concentrator communication unit；
AC power dissipation test cell, the AC power dissipation test cell test the 3rd number of the electric energy meter communication unit
According to the AC power dissipation test cell tests the 4th data of the concentrator communication unit；
Micro-control unit, the micro-control unit and the DC power test cell, the AC power dissipation test cell
Connection, and the micro-control unit receives and calculates first data, second data, the 3rd data and described the
Four data；
Display unit, the display unit are connected with the micro-control unit, show the data meter of the micro-control unit
Calculate result；
Network communication unit, the network communication unit are connected with the micro-control unit, transmit the micro-control unit
Data result of calculation to computer terminal host computer.
Preferably, the power source loads unit is by DC20v power circuits, DC12v power circuits, exchange collection 3.3v power supplys
Circuit, DC5v power circuits, DC3.3v power circuits and line impedance stabilization net work circuit composition.
Preferably, the power source loads unit is that the DC power test cell carries with the AC power dissipation test cell
Power supply source.
Preferably, the DC power test cell detects instantaneous power consumption by current sample and voltage sample, wherein, institute
Voltage sample is stated to calculate using divider resistance.
Preferably, the AC power dissipation test cell calculates AC power dissipation by current sample and voltage sample, wherein, institute
Voltage sample is stated to calculate using divider resistance.
Preferably, described exchange is set to gather optocoupler between the AC power dissipation test cell and the micro-control unit
Close circuit.
Preferably, the micro-control unit uses STM32F207ZE chips.
Preferably, the STM32F207ZE chips have the operation dominant frequency and application interface of high speed.
Preferably, the display unit has a touch display screen, and the display unit passes through interface and the direct current
Power consumption test unit, AC power dissipation test cell interaction.
Preferably, the network communication unit interacts with upper computer software.
Said one or multiple technical schemes in the embodiment of the present invention, at least there is following one or more technology effects
Fruit：
1st, it is described the embodiments of the invention provide a kind of consumption detection device based on broadband power line carrier communication unit
Consumption detection device includes：Power source loads unit, the power source loads unit connection electric energy meter communication unit communicate with concentrator
Unit；DC power test cell, the DC power test cell test the first data of the electric energy meter communication unit, institute
State the second data that DC power test cell tests the concentrator communication unit；AC power dissipation test cell, the exchange
3rd data of electric energy meter communication unit described in power consumption test unit testing, the AC power dissipation test cell test the concentration
4th data of device communication unit；Micro-control unit, the micro-control unit and the DC power test cell, described exchange
Power consumption test unit connect, and the micro-control unit receives and calculates first data, second data, the described 3rd
Data and the 4th data；Display unit, the display unit are connected with the micro-control unit, show the microcontroller list
The data result of calculation of member；Network communication unit, the network communication unit are connected with the micro-control unit, are transmitted described micro-
The data result of calculation of control unit is to computer terminal host computer.Solve of the prior art due to electric power line width in the prior art
The dynamic power consumption time with carrier module is short and AC power dissipation is small, and so as to cause equipment dynamic response low, AC power dissipation is tested not
Accurately, the technical problem of the test of power wire broadband carrier communication unit can not be applied to, realize that test result is accurate, cost
It is relatively low, take that just property is good, technique effect available for program control and automatic test broadband power line carrier communication unit power consumption.
2nd, the present invention is gathered by the power source loads unit by DC20v power circuits, DC12v power circuits, exchange
3.3v power circuits, DC5v power circuits, DC3.3v power circuits and line impedance stabilization net work circuit composition.Solves existing skill
In art because the dynamic power consumption time of power wire broadband carrier module in the prior art is short and AC power dissipation is small, so as to cause to set
Standby dynamic response is low, and AC power dissipation test is inaccurate, can not be applied to the technology of the test of power wire broadband carrier communication unit
Problem, line impedance stabilization net work circuit is added, influence of the external subcarrier to test system can be eliminated, while can be system
Test provides stable electric power linear load, further ensures power supply output accuracy better than 1%, (output current 0 under different loads
~0.5A) voltage-regulation coefficient≤1%, realize the technique effect that test result is accurate, and test system is stablized.
3rd, the present invention detects instantaneous power consumption by the DC power test cell by current sample and voltage sample, its
In, the voltage sample is calculated using divider resistance.Solve of the prior art due to power wire broadband carrier in the prior art
The dynamic power consumption time of module is short and AC power dissipation is small, and so as to cause equipment dynamic response low, AC power dissipation test is inaccurate, nothing
Method is applied to the technical problem of the test of power wire broadband carrier communication unit, and it is higher further to have reached sampling precision, test
As a result accurate technique effect.
4th, the present invention between the AC power dissipation test cell and the micro-control unit by setting optically coupled circuit.
Solve it is of the prior art because the dynamic power consumption time of power wire broadband carrier module in the prior art is short and AC power dissipation is small,
So as to cause equipment dynamic response low, AC power dissipation test is inaccurate, can not be applied to power wire broadband carrier communication unit
The technical problem of test, by the optically coupled circuit, realize the number between AC power dissipation test cell and micro-control unit
According to the technique effect transmitted with isolating.
5th, the present invention uses STM32F207ZE chips by the micro-control unit.Solve of the prior art due to existing
There is the dynamic power consumption time of power wire broadband carrier module in technology short small with AC power dissipation, so as to cause equipment dynamic response
Low, AC power dissipation test is inaccurate, can not be applied to the technical problem of the test of power wire broadband carrier communication unit, described
STM32F207ZE resources of chip enriches, and is communicated comprising 5 UART, wherein, a UART communicates to communicate for liquid crystal display, two
UART communicates for AC sampling chip communication, and has the bit AD sample of 6 tunnel 12, available for 12V, 5V, 3.3V DC powers
Sampling.It furthermore achieved that test result is accurate, available for program control and automatic test broadband power line carrier communication unit
Power consumption technique effect.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
, below will be to embodiment or description of the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the present application
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are some realities of the application
Example is applied, for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other accompanying drawings.
Fig. 1 is a kind of signal of the consumption detection device based on broadband power line carrier communication unit in the embodiment of the present invention
Figure；
Fig. 2 is the DC20v power circuit diagrams in the power source loads unit provided in the embodiment of the present invention；
Fig. 3 is the DC12v power circuit diagrams in the power source loads unit provided in the embodiment of the present invention；
Fig. 4 is that the exchange in the power source loads unit provided in the embodiment of the present invention gathers 3.3v power circuit diagrams；
Fig. 5 is the DC5v power circuit diagrams in the power source loads unit provided in the embodiment of the present invention；
Fig. 6 is the DC3.3v power circuit diagrams in the power source loads unit provided in the embodiment of the present invention；
Fig. 7 is the line impedance stabilization net work circuit diagram in the power source loads unit provided in the embodiment of the present invention；
Fig. 8 is the direct current collection voltages current circuit figure in the DC power test cell provided in the embodiment of the present invention；
Fig. 9 is the ESEM16 chip analog front structures in the AC power dissipation test cell provided in the embodiment of the present invention
Schematic diagram；
Figure 10 is the exchange collection voltages current circuit figure in the AC power dissipation test cell provided in the embodiment of the present invention；
Figure 11 is the ESEM16 chip circuit figures in the AC power dissipation test cell provided in the embodiment of the present invention；
Figure 12 is the optically coupled circuit figure in the AC power dissipation test cell provided in the embodiment of the present invention；
Figure 13 is the network communication unit circuit diagram provided in the embodiment of the present invention.
Embodiment
The embodiments of the invention provide a kind of consumption detection device based on broadband power line carrier communication unit, solves existing
Have in technology because the dynamic power consumption time of power wire broadband carrier module in the prior art is short and AC power dissipation is small, so as to make
Forming apparatus dynamic response is low, and AC power dissipation test is inaccurate, can not be applied to the test of power wire broadband carrier communication unit
Technical problem, realizes that test result is accurate, cost is relatively low, it is good to take just property, available for program control and automatic test broadband power
The technique effect of the power consumption of line carrier communication unit.
Technical scheme in the embodiment of the present invention, the structure include：Power source loads unit, the power source loads unit connect
Connect electric energy meter communication unit and concentrator communication unit；DC power test cell, the DC power test cell test institute
The first data of electric energy meter communication unit are stated, the DC power test cell tests the second number of the concentrator communication unit
According to；AC power dissipation test cell, the AC power dissipation test cell tests the 3rd data of the electric energy meter communication unit, described
AC power dissipation test cell tests the 4th data of the concentrator communication unit；Micro-control unit, the micro-control unit with
The DC power test cell, AC power dissipation test cell connection, and the micro-control unit are received and calculated described
First data, second data, the 3rd data and the 4th data；Display unit, the display unit with it is described
Micro-control unit connects, and shows the data result of calculation of the micro-control unit；Network communication unit, the network communication unit
It is connected with the micro-control unit, transmits the data result of calculation of the micro-control unit to computer terminal host computer.Solve existing
Have in technology because the dynamic power consumption time of power wire broadband carrier module in the prior art is short and AC power dissipation is small, so as to make
Forming apparatus dynamic response is low, and AC power dissipation test is inaccurate, can not be applied to the test of power wire broadband carrier communication unit
Technical problem, realizes that test result is accurate, cost is relatively low, it is good to take just property, available for program control and automatic test broadband power
The technique effect of the power consumption of line carrier communication unit.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment one
Fig. 1 is a kind of consumption detection device based on broadband power line carrier communication unit that the embodiment of the present application provides
Schematic diagram.As shown in figure 1, described device includes：
Power source loads unit 1, the power source loads unit 1 connect electric energy meter communication unit 2 and concentrator communication unit 3.
Further, the power source loads unit 1 is by DC20v power circuits, DC12v power circuits, exchange collection 3.3v
Power circuit, DC5v power circuits, DC3.3v power circuits and line impedance stabilization net work circuit composition.The power source loads list
Member 1 is that the DC power test cell 4 provides power supply with the AC power dissipation test cell 5.
Specifically, Fig. 1 to Fig. 7 is refer to, the power source loads unit 1 connects electric energy meter communication unit 2 and concentrator
Communication unit 3.The power source loads unit 1 can influence broadband power line carrier technology (BPLC) power consumption.The power supply is born
After carrier unit 1 accesses power consumption tester, first have to handle the power source loads unit 1.In the power source loads unit 1
Before alternating current incoming end, reply power supply is standardized, and adds line impedance stabilization net work, you can to eliminate external subcarrier
To systematic influence, or system testing provides stable electric power linear load.The power source loads unit 1 is through transformation, rectification,
After filtering, 12V, 5V, 3.3V voltages are provided for whole consumption detection device.
The power source loads unit 1 by DC20v power circuits, DC12v power circuits, exchange collection 3.3v power circuits,
DC5v power circuits, DC3.3v power circuits and line impedance stabilization net work circuit composition.Wherein, Switching Power Supply scheme is easily produced
Raw larger noise, influences carrier communication and measurement accuracy, therefore the DC20v power circuits use linear power supply scheme, and 20V is
Refer to voltage under no-load condition, the voltage can drag down under system power supply and module transmission state, but still can be higher than 14V, rear class warp
Cross DCDC voltage stabilizings and reach 12V, meet the power source loads cell operation requirement.The DC12v power circuits are by DCDC outputs 12V
Voltage is powered for carrier module.The exchange collection 3.3v power circuits use transformer assists winding, halfwave rectifier mode,
It is used for AC sampling chip power supply using LDO output 3.3V voltages, AC sampling need to use non-isolated mode, and direct current sampling needs
Isolation, therefore individually 3.3V is used to power all the way for output.The DC5v power circuits are using LDO output 5V, first, being used for liquid crystal display
Power supply, second, compatible other unit power supply plans.The DC3.3v power circuits are using LDO output 3.3V, for whole system
Power supply, including micro-control unit (MCU) and PHY chips etc..The line impedance stabilization net work circuit is including isolator and simply
Impedance stable network, during test cell dynamic power consumption because load it is different can cause different test results, can be according to 2-
12M carrier frequencies design impedance stable network.
DC power test cell 4, the DC power test cell 4 test the first of the electric energy meter communication unit 2
Data, the DC power test cell 4 test the second data of the concentrator communication unit 3.
Further, the DC power test cell 4 detects instantaneous power consumption by current sample and voltage sample, its
In, the voltage sample is calculated using divider resistance.
Specifically, the DC power test cell 4 leads to the electric energy meter communication unit 2, the concentrator respectively
Letter unit 3 connects, and the DC power test cell 4 tests the first data of the electric energy meter communication unit 2, tests the collection
Second data of middle device communication unit 3.The DC power test cell 4 detects instantaneous work(by current sample and voltage sample
Consumption, wherein, the voltage sample is calculated using divider resistance.The universal method for measuring direct current average power consumption is in certain time
It is interior, with certain sample rate equal interval sampling N group instantaneous voltages uiWith transient current iiValue.Pass through voltage acquisition numerical value and electricity
Stream collection numerical value, which is multiplied, obtains instantaneous power consumption.Wherein, current sample uses INA282 chips in the DC power test cell.
It refer to Fig. 8, pin 1, the input pin that pin 8 is differential voltage, pin 5 are defeated in the DC power test cell circuit
Go out pin, wherein R1 is sampling resistor, R4, C9 composition LPF, reduces influence of the current ripples to sampling.Chip pin 3,
Voltage connects pin on the basis of pin 7, and two pins connect different reference voltages to determine the working method of INA282 chips,
Including Unidirectional, bidirectional movement etc..Because power consumption test only has unidirectional current, therefore, two reference voltages are grounded choosing
Select single-phase operation mode.The voltage sample is that the offer of power source loads unit 1 voltage is 12V, and analog-digital converter (ADC) is adopted
The measurement range of sample chip is 3.3V, and beyond AD sampled voltage scopes, voltage sample uses the mode of electric resistance partial pressure, used respectively
47K and 10K precision resister, it is about 2.1V to make AD sampled voltages, meets that the sampling of the analog-digital converter (ADC) chip will
Ask.Current sample is by the sampling resistor string of high-precision low resistance to 12V power supplys, using precision differential amplifier, will first be sampled
Resistance both end voltage is amplified after being compared, one suitable voltage signal of output to Chip Microcomputer A/D.The INA282 cores
The voltage difference at sampling resistor both ends can be amplified 50 times by piece.Sampling electricity is calculated according to current sample precision, voltage accuracy etc.
Resistance is in the range of 0.016R to 0.132R.According to sampling resistor specification, the present embodiment selection 0.1R resistance is proper, wherein
Sampling resistor has the characteristics of High Precision Low Temperature drift, and sampling precision is higher.
AC power dissipation test cell 5, the AC power dissipation test cell 5 test the 3rd of the electric energy meter communication unit 2
Data, the AC power dissipation test cell 5 test the 4th data of the concentrator communication unit 3.
Further, the AC power dissipation test cell 5 calculates AC power dissipation by current sample and voltage sample, its
In, the voltage sample is calculated using divider resistance.Between the AC power dissipation test cell 5 and the micro-control unit 6
The exchange collection optically coupled circuit is set.
Specifically, the AC power dissipation test cell 5 leads to the electric energy meter communication unit 2, the concentrator respectively
Letter unit 3 connects, and the AC power dissipation test cell 5 tests the 3rd data of the electric energy meter communication unit 2, tests the collection
4th data of middle device communication unit 3.AC power dissipation is mainly zero crossing circuitry power consumption, and the AC power dissipation test cell 5 passes through
Current sample calculates AC power dissipation with voltage sample.Alternating voltage and current sampling unit use non-isolated scheme, in the friendship
Described exchange is set to gather optically coupled circuit between stream power consumption test unit 5 and the micro-control unit 6.Fig. 9 be refer to figure
11, the AC power dissipation test cell 5 uses the electric energy computation chip ESEM16 of Shanghai microelectronics, the ESEM16 chip internals
The micro-control unit (MCU) of high-precision electric energy metering module is integrated, active energy can be measured, measurement voltage, electric current have
Valid value, calculate average active power.The voltage sample is by the way of precision resister partial pressure, the ESEM16 chip voltages
Sampling request input signal is 100uV to 500mV.Consider the fluctuation of different manufacturers module AC power dissipation, AC power dissipation scope is set to
1mW to 300mW.By result of calculation, sampling resistor in the range of 1.1R to 18.3R, choose sampling resistor and be by the present embodiment
10R.Figure 12 is refer to, optically coupled circuit is set between the AC power dissipation test cell 5 and the micro-control unit 6, institute
Optically coupled circuit is stated for the data transfer between the AC power dissipation test cell 5 and the micro-control unit 6 with isolating.
Micro-control unit 6, the micro-control unit 6 and the DC power test cell 4, AC power dissipation test are single
Member 5 connects, and the micro-control unit 6 receives and calculates first data, second data, the 3rd data and institute
State the 4th data.
Further, the micro-control unit 6 uses STM32F207ZE chips.The STM32F207ZE chips have
The operation dominant frequency and an application interface of high speed.
Specifically, the micro-control unit 6 and the DC power test cell 4, the AC power dissipation test cell 5
Connection, the micro-control unit 6 receive first data, second data, the 3rd data and the 4th data.
The micro-control unit 6 is the core cell of power consumption test device, and the micro-control unit 6 uses STM32F207ZE chips, institute
Stating STM32F207ZE chips has the operation dominant frequency and an application interface of high speed.The STM32F207ZE resources of chip enriches,
Communicated comprising 5 UART, wherein, a UART communicates to communicate for liquid crystal display, and two UART communicate for AC sampling chip
Communication, and there is the bit AD sample of 6 tunnel 12, available for 12V, 5V, the sampling of 3.3V DC powers.The ADC has
The sample rate of 12bit measurement accuracy and 30MHz, it disclosure satisfy that the BPLC dynamic power consumptions test request.
Display unit 7, the display unit 7 are connected with the micro-control unit 6, show the number of the micro-control unit 6
According to result of calculation；Network communication unit 8, the network communication unit 8 are connected with the micro-control unit 6, transmit the micro-control
The data result of calculation of unit 6 processed is to computer terminal host computer.
Further, the display unit 7 has a touch display screen, and the display unit 7 by interface with it is described
DC power test cell 4, the AC power dissipation test cell 5 interact.The network communication unit 8 and the upper computer software
Interaction.
Specifically, the display unit 7 is connected with the micro-control unit 6, and the display unit 7 shows the micro-control
The data result of calculation of unit 6 processed, the display unit 7 have a touch display screen, and the display unit 7 by interface with
The DC power test cell 4, the AC power dissipation test cell 5 interact, and carry out quiescent dissipation and dynamic power consumption test.
The network communication unit 8 is connected with the micro-control unit 6, and the network communication unit 8 transmits the micro-control unit 6
Data result of calculation to computer terminal host computer.The network communication unit 8 uses LAN8720A chips, the network service
Unit 8 interacts with the upper computer software, supports remote control, can be by the data result of calculation of the micro-control unit 6
The computer terminal host computer is transmitted to, is easy to integrate power consumption test device in other test systems.It refer to Figure 13, the net
R70, R71 are the current-limiting resistance of network indicator lamp in the circuit of network communication unit 8；R58 uses MDC/MDIO modes and Master Communications
16 pins need to be set to pull-up；R61, C63 are reset circuit；When G2, C64, C67 provide PHY chip 50M for active crystal oscillating circuit
Clock；100 Ω impedance is there are about between R63, R64, R65, R66 network interface differential lines, resistance is the effect of impedance matching；C58、C59、
C60, C61, C62, C66 filtering voltage regulation.
The technical scheme provided in the embodiment of the present application, has at least the following technical effects or advantages：
1st, it is described the embodiments of the invention provide a kind of consumption detection device based on broadband power line carrier communication unit
Consumption detection device includes：Power source loads unit, the power source loads unit connection electric energy meter communication unit communicate with concentrator
Unit；DC power test cell, the DC power test cell test the first data of the electric energy meter communication unit, institute
State the second data that DC power test cell tests the concentrator communication unit；AC power dissipation test cell, the exchange
3rd data of electric energy meter communication unit described in power consumption test unit testing, the AC power dissipation test cell test the concentration
4th data of device communication unit；Micro-control unit, the micro-control unit and the DC power test cell, described exchange
Power consumption test unit connect, and the micro-control unit receives and calculates first data, second data, the described 3rd
Data and the 4th data；Display unit, the display unit are connected with the micro-control unit, show the microcontroller list
The data result of calculation of member；Network communication unit, the network communication unit are connected with the micro-control unit, are transmitted described micro-
The data result of calculation of control unit is to computer terminal host computer.Solve of the prior art due to electric power line width in the prior art
The dynamic power consumption time with carrier module is short and AC power dissipation is small, and so as to cause equipment dynamic response low, AC power dissipation is tested not
Accurately, the technical problem of the test of power wire broadband carrier communication unit can not be applied to, realize that test result is accurate, cost
It is relatively low, take that just property is good, technique effect available for program control and automatic test broadband power line carrier communication unit power consumption.
2nd, the present invention is gathered by the power source loads unit by DC20v power circuits, DC12v power circuits, exchange
3.3v power circuits, DC5v power circuits, DC3.3v power circuits and line impedance stabilization net work circuit composition.Solves existing skill
In art because the dynamic power consumption time of power wire broadband carrier module in the prior art is short and AC power dissipation is small, so as to cause to set
Standby dynamic response is low, and AC power dissipation test is inaccurate, can not be applied to the technology of the test of power wire broadband carrier communication unit
Problem, line impedance stabilization net work circuit is added, influence of the external subcarrier to test system can be eliminated, while can be system
Test provides stable electric power linear load, further ensures power supply output accuracy better than 1%, (output current 0 under different loads
~0.5A) voltage-regulation coefficient≤1%, realize the technique effect that test result is accurate, and test system is stablized.
3rd, the present invention detects instantaneous power consumption by the DC power test cell by current sample and voltage sample, its
In, the voltage sample is calculated using divider resistance.Solve of the prior art due to power wire broadband carrier in the prior art
The dynamic power consumption time of module is short and AC power dissipation is small, and so as to cause equipment dynamic response low, AC power dissipation test is inaccurate, nothing
Method is applied to the technical problem of the test of power wire broadband carrier communication unit, and it is higher further to have reached sampling precision, test
As a result accurate technique effect.
4th, the present invention between the AC power dissipation test cell and the micro-control unit by setting optically coupled circuit.
Solve it is of the prior art because the dynamic power consumption time of power wire broadband carrier module in the prior art is short and AC power dissipation is small,
So as to cause equipment dynamic response low, AC power dissipation test is inaccurate, can not be applied to power wire broadband carrier communication unit
The technical problem of test, by the optically coupled circuit, realize the number between AC power dissipation test cell and micro-control unit
According to the technique effect transmitted with isolating.
5th, the present invention uses STM32F207ZE chips by the micro-control unit.Solve of the prior art due to existing
There is the dynamic power consumption time of power wire broadband carrier module in technology short small with AC power dissipation, so as to cause equipment dynamic response
Low, AC power dissipation test is inaccurate, can not be applied to the technical problem of the test of power wire broadband carrier communication unit, described
STM32F207ZE resources of chip enriches, and is communicated comprising 5 UART, wherein, a UART communicates to communicate for liquid crystal display, two
UART communicates for AC sampling chip communication, and has the bit AD sample of 6 tunnel 12, available for 12V, 5V, 3.3V DC powers
Sampling.It furthermore achieved that test result is accurate, available for program control and automatic test broadband power line carrier communication unit
Power consumption technique effect.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.So, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
- A kind of 1. consumption detection device based on broadband power line carrier communication unit, it is characterised in that the consumption detection dress Put including：Power source loads unit, the power source loads unit connection electric energy meter communication unit and concentrator communication unit；DC power test cell, the DC power test cell test the first data of the electric energy meter communication unit, institute State the second data that DC power test cell tests the concentrator communication unit；AC power dissipation test cell, the AC power dissipation test cell test the 3rd data of the electric energy meter communication unit, institute State the 4th data that AC power dissipation test cell tests the concentrator communication unit；Micro-control unit, the micro-control unit are connected with the DC power test cell, the AC power dissipation test cell, And the micro-control unit receives and calculates first data, second data, the 3rd data count with the described 4th According to；Display unit, the display unit are connected with the micro-control unit, show that the data of the micro-control unit calculate knot Fruit；Network communication unit, the network communication unit are connected with the micro-control unit, transmit the number of the micro-control unit According to result of calculation to computer terminal host computer.
- 2. consumption detection device as claimed in claim 1, it is characterised in that the power source loads unit is by DC20v power supplys electricity Road, DC12v power circuits, exchange collection 3.3v power circuits, DC5v power circuits, DC3.3v power circuits and line impedance are steady Determine lattice network composition.
- 3. consumption detection device as claimed in claim 1, it is characterised in that the power source loads unit is the DC power Test cell provides power supply with the AC power dissipation test cell.
- 4. consumption detection device as claimed in claim 1, it is characterised in that the DC power test cell is adopted by electric current Sample and voltage sample detection instantaneous power consumption, wherein, the voltage sample is calculated using divider resistance.
- 5. consumption detection device as claimed in claim 1, it is characterised in that the AC power dissipation test cell is adopted by electric current Sample calculates AC power dissipation with voltage sample, wherein, the voltage sample is calculated using divider resistance.
- 6. consumption detection device as claimed in claim 5, it is characterised in that the AC power dissipation test cell with it is described micro- The exchange collection optically coupled circuit is set between control unit.
- 7. consumption detection device as claimed in claim 1, it is characterised in that the micro-control unit uses STM32F207ZE Chip.
- 8. consumption detection device as claimed in claim 7, it is characterised in that the STM32F207ZE chips have high speed Run dominant frequency and application interface.
- 9. consumption detection device as claimed in claim 1, it is characterised in that the display unit has a touch display screen, And the display unit is interacted by interface with the DC power test cell, the AC power dissipation test cell.
- 10. consumption detection device as claimed in claim 1, it is characterised in that the network communication unit and upper computer software Interaction.
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| CN113589032A (en) * | 2021-04-07 | 2021-11-02 | 天地融科技股份有限公司 | Method and system for carrying out real-time power test on load on single live wire |
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| CN107707276B (en) | 2023-08-15 |
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