CN107590986A - A kind of electric power data acquisition system based on bandwidth carrier - Google Patents
A kind of electric power data acquisition system based on bandwidth carrier Download PDFInfo
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- CN107590986A CN107590986A CN201710890011.5A CN201710890011A CN107590986A CN 107590986 A CN107590986 A CN 107590986A CN 201710890011 A CN201710890011 A CN 201710890011A CN 107590986 A CN107590986 A CN 107590986A
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Abstract
The invention discloses a kind of electric power data acquisition system based on bandwidth carrier, including data acquisition module, micro-chip processor and data transmission module, data acquisition module to electrically connect with micro-chip processor；Micro-chip processor electrically connects with data transmission module.Workflow of the present invention is as follows：S1, by the parameter of data collecting module collected operation power equipment, obtain parameter signal；S2, parameter signal are sent to micro-chip processor by transmission line；S3, micro-chip processor carry out analysis calculating to parameter signal；S4, micro-chip processor are sent result of calculation to terminal server by data transmission module.The electric power data acquisition method of the present invention is simple, and the antijamming capability of data transfer can be improved by sending parameter signal by OFDM technology and power line carrier technology, and reduce communication bit error rates.
Description
Technical field
The present invention relates to electric power data acquisition technical field, and in particular to a kind of electric power data acquisition based on bandwidth carrier
System.
Background technology
The power transformation of the various voltages entirety that electric line forms in one's power, referred to as power network, abbreviation power network in power system.
It includes three power transformation, transmission of electricity, distribution units.The task of power network is conveying and distribution electric energy, changes voltage；Power system is transported
Row, analysis personnel depend on the Real Time Monitoring based on electric network model to the accurate assurance of power network characteristic.Accurate power network ginseng
Number is to form the basis that accurate electric network model carries out power system computation.Therefore, the accuracy of electrical network parameter and reliable is improved
Property, the safe and stable operation of short-term load is significant.
Ammeter is the instrument for measuring electric energy, also known as kilowatt-hour meter, is used when being common in electricity consumption of resident data acquisition.It is existing
Some Domestic electric meters, need manually to read after electric quantity data is gathered, cause cost of labor larger.Then develop into again
The intelligent electric meter of line data-transformation facility, but the intelligent electric meter is more based on the wired data transfers such as RS485, RS232, transmission distance
From it is near, be easily disturbed, limit local and communicated with the transmission of terminal server, the reliability and stability of data transfer can not obtain
To guarantee.In addition, existing ammeter only acquires electricity in collection, other parameters of electric power do not gather, it is impossible to meet technology people
Analysis of the member to whole power system, while the staff of Utilities Electric Co. can not grasp the working condition of ammeter in real time.
The content of the invention
Instant invention overcomes the defects of the communication system of above-mentioned power emergency repair, there is provided a kind of new is carried based on broadband
The electric power data acquisition system of ripple.The electric power data acquisition method of the present invention is simple, passes through OFDM technology and power line carrier skill
Art, which sends parameter signal, can improve the antijamming capability of data transfer, and reduce communication bit error rates.
In order to solve the above technical problems, technical scheme is as follows：
A kind of electric power data acquisition system based on bandwidth carrier, it is characterised in that described electric power data acquisition system includes
Data acquisition module, program module, micro-chip processor and data transmission module, wherein,
Described data acquisition module electrically connects with micro-chip processor；
Described micro-chip processor electrically connects with data transmission module；
Described program module is stored on the microprocessor chip, and described program module can be performed by the microprocessor
Shi Shixian following steps：
S1：By the parameter of data collecting module collected operation power equipment, parameter signal is obtained；
S2：Parameter signal is sent to micro-chip processor by transmission line；
S3：Micro-chip processor carries out analysis calculating to parameter signal；
S4：Micro-chip processor is sent result of calculation to terminal server by data transmission module.
In a kind of preferable scheme, described data acquisition module includes clock signal collector, voltage transformer, electricity
Current transformer, analog-digital converter and FPGA, wherein,
Input of the input of described clock signal collector as data acquisition module, the output end of data acquisition module
Electrically connected with FPGA input；
Input of the input of described voltage transformer as data acquisition module, the output end and modulus of voltage transformer
The input electrical connection of converter；
Input of the input of described current transformer as data acquisition module, the output end and modulus of current transformer
The input electrical connection of converter；
The output end of described analog-digital converter electrically connects with FPGA input.
This preferred scheme can reach the purpose to the unified collection of operation power device data, it is achieved thereby that obtaining electric power
The technique effect of the data message of the same time cross-section of operational outfit.
In a kind of preferable scheme, described data transmission module includes communication interface, communication control processor, numeral
Signal processor, signal amplifier and signal connector, wherein,
Input of the input of described communication interface as data transmission module, input and the microprocessor core of communication interface
The output end of piece carries out signal transmission by way of electrical connection or wireless connection；
The output end of described communication interface electrically connects with the input of communication control processor；
The output end of described communication control processor electrically connects with the input of digital signal processor；
The output end of described digital signal processor electrically connects with the input of signal amplifier；
The output end of described signal amplifier electrically connects with the input of signal connector, the output end conduct of signal connector
The output end of data transmission module.
This preferred scheme provides data channel at a high speed, safe and stable, has ensured information about power, application and data
Real time high-speed gathers and transmission.
In a kind of preferable scheme, described communication interface is RS485 interfaces or RS232 interface or ZigBee interfaces.
This preferred scheme provides multiple communication interface, strengthens applicability.
In a kind of preferable scheme, described communication control processor is at embedded low-voltage power line carrier communication control
Manage device.Embedded low-voltage power line carrier communication control processor in this preferred scheme has a stable performance, strong antijamming capability,
The characteristics of information transfer is accurate, while also there is the function that signal is loaded into power line by power line communication technology.
In a kind of preferable scheme, described digital signal processor is BSP-15 broadband signal processors, described
The signal that BSP-15 broadband signal processors transmit to communication control processor carries out OFDM modulation, obtains ofdm modulation signal.
In this preferred scheme, BSP-15 broadband signal processors have the characteristics of high-performance, low-power consumption, it is possible to increase signal transacting is imitated
Rate.OFDM modulation can reduce communication bit error rates, improve traffic rate.
In a kind of preferable scheme, described signal connector is signal coupler, and described signal coupler is used for
Separation, the mixing of signal, make signal have the preferable degree of coupling.
In a kind of preferable scheme, described data transmission module also includes memory, described memory and communication
Control processor electrically connects, and memory carries out two-way communication with communication control processor.
Compared with prior art, the beneficial effect of technical solution of the present invention is：
（1）Electric power data acquisition method is simple, and sending electric power data signal by OFDM technology and power line carrier technology can
The antijamming capability of data transfer is improved, and reduces communications errors, realizes high speed acquisition and the transmission of data.
（2）The data acquisition module of use can reach the purpose to the unified collection of operation power device data, so as to real
The technique effect for the data message for obtaining the same time cross-section of operation power equipment is showed.
Brief description of the drawings
Fig. 1 is example structure figure.
Fig. 2 is embodiment data acquisition module block structural diagram.
Fig. 3 is embodiment data transmission module structure chart.
Fig. 4 is embodiment workflow diagram.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
In order to more preferably illustrate the present embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the chi of actual product
It is very little；
To those skilled in the art, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Technical scheme is described further with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of electric power data acquisition system based on bandwidth carrier, including data acquisition module, program mould
Block, micro-chip processor and data transmission module, data acquisition module electrically connect with micro-chip processor；Micro-chip processor passes with data
Defeated module electrical connection.
Wherein, as shown in Fig. 2 data acquisition module include clock signal collector, voltage transformer, current transformer,
Analog-digital converter and FPGA,
Input of the input of clock signal collector as data acquisition module, the output end and FPGA of data acquisition module
Input electrical connection；
Input of the input of voltage transformer as data acquisition module, the output end and analog-digital converter of voltage transformer
Input electrical connection；
Input of the input of current transformer as data acquisition module, the output end and analog-digital converter of current transformer
Input electrical connection；
The output end of analog-digital converter electrically connects with FPGA input.
Wherein, as shown in figure 3, data transmission module includes RS485 interfaces, at embedded low-voltage power line carrier communication control
Device, BSP-15 broadband signal processors, signal amplifier, signal coupler and memory are managed,
Memory electrically connects with embedded low-voltage power line carrier communication control processor, memory and inlaid low voltage power carrier
Communication control processor electrical connection carries out two-way communication；
Input of the input of RS485 interfaces as data transmission module, the input of communication interface and micro-chip processor
Output end carries out signal transmission by way of electrical connection；
The output end of RS485 interfaces electrically connects with the input of embedded low-voltage power line carrier communication control processor；
The output end of embedded low-voltage power line carrier communication control processor and the input electricity of BSP-15 broadband signal processors
Connection；
The output end of BSP-15 broadband signal processors electrically connects with the input of signal amplifier；
The output end of signal amplifier electrically connects with the input of signal coupler, and the output end of signal coupler passes as data
The output end of defeated module.
As shown in figure 4, the present embodiment workflow is as follows：
S1：By the parameter of data collecting module collected operation power equipment, parameter signal is obtained；The parameter signal of gained includes
Clock signal, fundamental wave phase angle, fundamental voltage amplitude, harmonic wave phase angle and amplitude, wherein, because voltage transformer summation current transformer obtains
Be analog signal, it is therefore desirable to data signal is converted into by analog-digital converter.
S2：Parameter signal is sent to micro-chip processor by transmission line；
S3：Micro-chip processor carries out analysis calculating to parameter signal；
S4：Memory stores to signal；
S5：Primary signal is changed into the letter that can be loaded into power line by embedded low-voltage power line carrier communication control processor
Number；
S6：BSP-15 carries out OFDM modulation to signal, obtains ofdm modulation signal；
S7：Signal amplifier is amplified to ofdm modulation signal, is amplified signal；
S8：Signal coupler is by amplified signal by being loaded on power line.
Same or analogous label corresponds to same or analogous part；
Term the being given for example only property explanation of position relationship described in accompanying drawing, it is impossible to be interpreted as the limitation to this patent；
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to this hair
The restriction of bright embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all in the present invention
Spirit and principle within all any modification, equivalent and improvement made etc., should be included in the guarantor of the claims in the present invention
Within the scope of shield.
Claims (10)
- A kind of 1. electric power data acquisition system based on bandwidth carrier, it is characterised in that described electric power data acquisition system bag Data acquisition module, program module, micro-chip processor and data transmission module are included, wherein,Described data acquisition module electrically connects with micro-chip processor；Described micro-chip processor electrically connects with data transmission module；Described program module is stored on the microprocessor chip, and described program module can be performed by the microprocessor Shi Shixian following steps：S1：By the parameter of data collecting module collected operation power equipment, parameter signal is obtained；S2：Parameter signal is sent to micro-chip processor by transmission line；S3：Micro-chip processor carries out analysis calculating to parameter signal；S4：Micro-chip processor is sent result of calculation to terminal server by data transmission module.
- 2. electric power data acquisition system according to claim 1, it is characterised in that when described data acquisition module includes Clock signal picker, voltage transformer, current transformer, analog-digital converter and FPGA, wherein,Input of the input of described clock signal collector as data acquisition module, the output end of data acquisition module Electrically connected with FPGA input；Input of the input of described voltage transformer as data acquisition module, the output end and modulus of voltage transformer The input electrical connection of converter；Input of the input of described current transformer as data acquisition module, the output end and modulus of current transformer The input electrical connection of converter；The output end of described analog-digital converter electrically connects with FPGA input.
- 3. electric power data acquisition system according to claim 1 or 2, it is characterised in that described data transmission module bag Communication interface, communication control processor, digital signal processor, signal amplifier and signal connector are included, wherein,Input of the input of described communication interface as data transmission module, input and the microprocessor core of communication interface The output end of piece carries out signal transmission by way of electrical connection or wireless connection；The output end of described communication interface electrically connects with the input of communication control processor；The output end of described communication control processor electrically connects with the input of digital signal processor；The output end of described digital signal processor electrically connects with the input of signal amplifier；The output end of described signal amplifier electrically connects with the input of signal connector, the output end conduct of signal connector The output end of data transmission module.
- 4. electric power data acquisition system according to claim 3, it is characterised in that described communication interface is that RS485 connects Mouth or RS232 interface or ZigBee interfaces.
- 5. electric power data acquisition system according to claim 4, it is characterised in that described communication control processor is embedding Enter formula low voltage electric power carrier communication control processor, described embedded low-voltage power line carrier communication control processor has will letter The function of power line number is loaded into by power line communication technology.
- 6. the electric power data acquisition system according to claim 4 or 5, it is characterised in that described digital signal processor It is BSP-15 broadband signal processors, the signal that described BSP-15 broadband signal processors transmit to communication control processor enters Row OFDM is modulated, and obtains ofdm modulation signal.
- 7. electric power data acquisition system according to claim 3, it is characterised in that described digital signal processor is BSP-15 broadband signal processors, the signal that described BSP-15 broadband signal processors transmit to communication control processor are carried out OFDM is modulated, and obtains ofdm modulation signal.
- 8. electric power data acquisition system according to claim 6, it is characterised in that described signal connector is signal coupling Clutch, described signal coupler are used for the separation of signal, mixing, signal is had the preferable degree of coupling.
- 9. according to the electric power data acquisition system described in any claim in claim 4,5 or 7, it is characterised in that described Signal connector be signal coupler, described signal coupler is used for the separation of signal, mixing, has signal preferable The degree of coupling.
- 10. according to the electric power data acquisition system described in any claim in claim 4,5 or 8, it is characterised in that described Data transmission module also include memory, described memory electrically connects with communication control processor, memory and communicate control Processor processed carries out two-way communication.
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| CN201710890011.5A CN107590986A (en) | 2017-09-27 | 2017-09-27 | A kind of electric power data acquisition system based on bandwidth carrier |
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Cited By (1)
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| CN110809034A (en) * | 2019-10-23 | 2020-02-18 | 南京耐百特智能电气有限公司 | Internet of things sensing module of electric power Internet of things system |
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