CN106330261A - Heating controller based on OFDM power line communication system - Google Patents

Abstract

The invention discloses a heating controller based on an OFDM power line communication system. The heating controller comprises independent control ends, a monitoring end and a power line. The output end of the at least one independent control end is connected with the input end of the monitoring end through the power line. The independent control end and the monitoring end receive and send signals through the power line; the heating temperature controller is more convenient in installation than a wiring control mode, and only needs to be connected to the same power line, thereby saving wires, and meanwhile, preventing the problem that signal transmission capability of a wireless product in a large and complex space is not ideal; and the monitoring end can receive the signals of the plurality of independent control ends to realize synchronous monitoring.

Description

HVAC controller based on OFDM electric line communication system

Technical field

The present invention relates to HVAC controller technology field, be specially HVAC based on OFDM electric line communication system and controlDevice.

Background technology

Along with implementing and people's pursuit to a home from home of national energy-saving emission reduction tasks, ground heating system is just in the east of ChinaNorth progressively expands range, also has as the trend of China's southern development simultaneously.Heating ventilation temperature-control device is ground heating systemImportant component part, the often susceptiveness of the regulation of heating ventilation temperature-control device quality decision indoor temperature, but existing heating ventilation temperature-controlThe connecting wiring of device is more, adds and connects the cost installed, is not suitable for using on a large scale, the one nothing arisen at the historic moment therewithLine product, is significantly reduced room construction and installation wiring, easy for installation, reduces cost, and market potential is very big, but biggerIn more complicated space, the just performance of the signal transmission capabilities of wireless product is the most undesirable, to this end, propose based on OFDM electric powerThe HVAC controller of line communication system.

Summary of the invention

It is an object of the invention to provide HVAC controller based on OFDM electric line communication system, to solve above-mentioned backgroundThe problem proposed in technology.

For achieving the above object, the present invention provides following technical scheme: HVAC control based on OFDM electric line communication systemDevice processed, including independently controlling end, monitoring side and electric lines of force, the described independent end that controls is at least one, and independently controls the defeated of endGo out end to be connected with the input of monitoring side by electric lines of force；

The independent end that controls includes Stand-Alone Control Facility reason module, independent bus and the memory module of controlling, Stand-Alone Control Facility reason module andThe two-way electrical connection of memory module, the input of Stand-Alone Control Facility reason module is electrically connected with outfan and the external world of data acquisition modulePower supply, Stand-Alone Control Facility reason module and the independent control two-way electrical connection of bus, the independent input controlling bus is electrically connected to touchThe outfan of control module, the independent outfan controlling bus is electrically connected to solely control the input of LCD MODULE；

Monitoring side includes monitoring processing module and monitoring bus, the outfan of monitoring processing module and the input of monitoring bus busEnd electrical connection, the outfan of monitoring bus is electrically connected with the input of LCD MODULE and the input of LED module, and monitoring is totalThe input of line is also electrically connected with extraneous power supply.

Preferably, Stand-Alone Control Facility reason module include coding module, modulation module, IDFT, insertion cyclic prefix module andSerial conversion module, synchronization postamble module and multi-path choice module, coding module includes that data coding module and frame control codingModule, modulation module includes that data modulation module and frame control modulation module, and the outfan of described data coding module is with describedThe input electrical connection of data modulation module, described frame controls the outfan of coding module and controls the defeated of coding module with described frameEntering end electrical connection, the outfan of modulation module electrically connects with the input of IDFT, the outfan of IDFT and insertion Cyclic Prefix mouldThe input electrical connection of block, the outfan inserting cyclic prefix module electrically connects with the input of multi-path choice module, and multichannelThe input selecting module also electrically connects with the outfan of Tong Bu postamble module, the outfan of multi-path choice module and electric lines of force electricityConnect；Monitoring processing module include signal detection module, synchronization module, serial parallel modular converter, remove cyclic prefix module,DFT, balance module, demodulation module and decoder module, decoder module includes that data decoder module and frame control decoder module, demodulationModule includes that data demodulation module and frame control demodulation module, the input of data decoder module and the output of data demodulation moduleEnd electrical connection, the outfan of input and frame control demodulation module that frame controls decoder module electrically connects, the input of demodulation moduleEnd electrically connect with the outfan of balance module, the input of balance module electrically connects with the outfan of DFT, the input of DFT andRemove the outfan electrical connection of cyclic prefix module, remove the input of cyclic prefix module and the output of serial parallel modular converterEnd electrical connection, the input of serial parallel modular converter electrically connects with the outfan of synchronization module, and the input of synchronization module is respectivelyElectrically connecting with outfan and the electric lines of force of signal detection module, the input of signal detection module electrically connects with electric lines of force.

Preferably, Stand-Alone Control Facility reason module include coding module, modulation module, IFFT, insertion cyclic prefix module andSerial conversion module, synchronizing frame head module and multi-path choice module, coding module includes that data coding module and frame control codingModule, modulation module includes that data modulation module and frame control modulation module, and the outfan of described data coding module is with describedThe input electrical connection of data modulation module, described frame controls the outfan of coding module and controls the defeated of coding module with described frameEntering end electrical connection, the outfan of modulation module electrically connects with the input of IFFT, the outfan of IFFT and insertion Cyclic Prefix mouldThe input electrical connection of block, the outfan inserting cyclic prefix module electrically connects with the input of multi-path choice module, and multichannelThe input also outfan with synchronizing frame head module selecting module electrically connect, and the outfan of multi-path choice module is electric with electric lines of forceConnect；Monitoring processing module include signal detection module, synchronization module, serial parallel modular converter, remove cyclic prefix module,FFT, balance module, demodulation module and decoder module, decoder module includes that data decoder module and frame control decoder module, demodulationModule includes that data demodulation module and frame control demodulation module, the input of data decoder module and the output of data demodulation moduleEnd electrical connection, the outfan of input and frame control demodulation module that frame controls decoder module electrically connects, the input of demodulation moduleEnd electrically connect with the outfan of balance module, the input of balance module electrically connects with the outfan of FFT, the input of FFT andRemove the outfan electrical connection of cyclic prefix module, remove the input of cyclic prefix module and the output of serial parallel modular converterEnd electrical connection, the input of serial parallel modular converter electrically connects with the outfan of synchronization module, and the input of synchronization module is respectivelyElectrically connecting with outfan and the electric lines of force of signal detection module, the input of signal detection module electrically connects with electric lines of force.

Compared with prior art, the invention has the beneficial effects as follows: the independence of the present invention controls end and electric power is passed through in monitoring sideLine receives and sends signal, and this heating ventilation temperature-control device is more easy for installation than wiring control mode, only need to connect into same electric lines of forceIn road, save wiring, effectively avoid the signal transmission energy of wireless product in bigger more complicated space simultaneouslyThe most undesirable problem of power just performance, monitoring side can receive multiple independent signal controlling end, synchronous monitoring.

Figure of description

Fig. 1 is first embodiment of the invention structured flowchart；

Fig. 2 is second embodiment of the invention structured flowchart.

Detailed description of the invention

Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited toThis.

Embodiment 1:

As it is shown in figure 1, HVAC controller based on OFDM electric line communication system, including independently controlling end, monitoring side and electric powerLine, described independent control end is at least one, and the independent outfan controlling end is connected by the input of electric lines of force with monitoring sideConnect；

The independent end that controls includes Stand-Alone Control Facility reason module, independent bus and the memory module of controlling, Stand-Alone Control Facility reason module andThe two-way electrical connection of memory module, the input of Stand-Alone Control Facility reason module is electrically connected with outfan and the external world of data acquisition modulePower supply, Stand-Alone Control Facility reason module and the independent control two-way electrical connection of bus, the independent input controlling bus is electrically connected to touchThe outfan of control module, the independent outfan controlling bus is electrically connected to solely control the input of LCD MODULE；

Stand-Alone Control Facility reason module includes coding module, modulation module, IDFT, insertion cyclic prefix module, Parallel-serial convert mouldBlock, synchronization postamble module and multi-path choice module, coding module includes that data coding module and frame control coding module, modulates mouldBlock includes that data modulation module and frame control modulation module, the outfan of described data coding module and described data modulation moduleInput electrical connection, the input of outfan and the described frame control coding module that described frame controls coding module electrically connects,The outfan of modulation module electrically connects with the input of IDFT, the outfan of IDFT and the input electricity inserting cyclic prefix moduleConnecting, the outfan inserting cyclic prefix module electrically connects with the input of multi-path choice module, and multi-path choice module is defeatedEntering end also to electrically connect with the outfan of Tong Bu postamble module, the outfan of multi-path choice module electrically connects with electric lines of force；

Monitoring side includes monitoring processing module and monitoring bus, the outfan of monitoring processing module and the input of monitoring bus busEnd electrical connection, the outfan of monitoring bus is electrically connected with the input of LCD MODULE and the input of LED module, and monitoring is totalThe input of line is also electrically connected with extraneous power supply；

Monitoring processing module include signal detection module, synchronization module, serial parallel modular converter, remove cyclic prefix module,DFT, balance module, demodulation module and decoder module, decoder module includes that data decoder module and frame control decoder module, demodulationModule includes that data demodulation module and frame control demodulation module, the input of data decoder module and the output of data demodulation moduleEnd electrical connection, the outfan of input and frame control demodulation module that frame controls decoder module electrically connects, the input of demodulation moduleEnd electrically connect with the outfan of balance module, the input of balance module electrically connects with the outfan of DFT, the input of DFT andRemove the outfan electrical connection of cyclic prefix module, remove the input of cyclic prefix module and the output of serial parallel modular converterEnd electrical connection, the input of serial parallel modular converter electrically connects with the outfan of synchronization module, and the input of synchronization module is respectivelyElectrically connecting with outfan and the electric lines of force of signal detection module, the input of signal detection module electrically connects with electric lines of force.

Embodiment 2:

As in figure 2 it is shown, the present embodiment contrasts with embodiment 1, Stand-Alone Control Facility reason module include coding module, modulation module,IFFT, insertion cyclic prefix module, Parallel-serial convert module, synchronizing frame head module and multi-path choice module, coding module includesData coding module and frame control coding module, and modulation module includes that data modulation module and frame control modulation module, described numberElectrically connecting with the input of described data modulation module according to the outfan of coding module, described frame controls the outfan of coding moduleThe input controlling coding module with described frame electrically connects, and the outfan of modulation module electrically connects with the input of IFFT, IFFTOutfan electrically connect with the input inserting cyclic prefix module, insert the outfan of cyclic prefix module and multi-path choice mouldThe input electrical connection of block, and the input of multi-path choice module also outfan with synchronizing frame head module electrically connect, multichannel choosingThe outfan selecting module electrically connects with electric lines of force；

Monitoring processing module include signal detection module, synchronization module, serial parallel modular converter, remove cyclic prefix module,FFT, balance module, demodulation module and decoder module, decoder module includes that data decoder module and frame control decoder module, demodulationModule includes that data demodulation module and frame control demodulation module, the input of data decoder module and the output of data demodulation moduleEnd electrical connection, the outfan of input and frame control demodulation module that frame controls decoder module electrically connects, the input of demodulation moduleEnd electrically connect with the outfan of balance module, the input of balance module electrically connects with the outfan of FFT, the input of FFT andRemove the outfan electrical connection of cyclic prefix module, remove the input of cyclic prefix module and the output of serial parallel modular converterEnd electrical connection, the input of serial parallel modular converter electrically connects with the outfan of synchronization module, and the input of synchronization module is respectivelyElectrically connecting with outfan and the electric lines of force of signal detection module, the input of signal detection module electrically connects with electric lines of force.

After data and frame control to control coding, frame control modulation respectively through data encoding, secretary's modulation and frame, carry outIFFT/IDFT computing, before adding circulation/suffix after, then through parallel-serial conversion, parallel data stream is converted into serial data stream, withTime in the frame head part of each information frame plus the synchronizing frame head of HomePlug 1.0 agreement for signal detection synchronization etc., useMUX controls the orderly transmission of synchronizing frame head and out of Memory symbol.

First signal detection is carried out, it may be judged whether receive useful signal at receiving terminal, laggard when receiving useful signalRow frame synchronization, after synchronizing signal produces, then is parallel data stream by converting serial data streams, then before removing circulation/suffix afterCarry out FFT/DFT computing, then carry out the equilibrium of frequency domain, carry out data demodulation, data decoding and frame after equilibrium respectively and control to solveAdjust, frame controls decoding, and output data and frame control.

The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme andInventive concept equivalent or change in addition, all should contain within protection scope of the present invention.

Claims (3)

1. HVAC controller based on OFDM electric line communication system, it is characterised in that: include independently controlling end, monitoring side and electricityThe line of force, the described independent end that controls is at least one, and the independent outfan input by electric lines of force with monitoring side controlling endConnect；

The independent end that controls includes Stand-Alone Control Facility reason module, independent bus and the memory module of controlling, Stand-Alone Control Facility reason module andThe two-way electrical connection of memory module, the input of Stand-Alone Control Facility reason module is electrically connected with outfan and the external world of data acquisition modulePower supply, Stand-Alone Control Facility reason module and the independent control two-way electrical connection of bus, the independent input controlling bus is electrically connected to touchThe outfan of control module, the independent outfan controlling bus is electrically connected to solely control the input of LCD MODULE；

Monitoring side includes monitoring processing module and monitoring bus, the outfan of monitoring processing module and the input of monitoring bus busEnd electrical connection, the outfan of monitoring bus is electrically connected with the input of LCD MODULE and the input of LED module, and monitoring is totalThe input of line is also electrically connected with extraneous power supply.

HVAC controller based on OFDM electric line communication system the most according to claim 1, it is characterised in that: independent controlProcessing module processed includes coding module, modulation module, IDFT, insertion cyclic prefix module, Parallel-serial convert module, synchronizes postambleModule and multi-path choice module, coding module includes that data coding module and frame control coding module, and modulation module includes dataModulation module and frame control modulation module, and the outfan of described data coding module is electric with the input of described data modulation moduleConnecting, the input of outfan and described frame control coding module that described frame controls coding module electrically connects, modulation moduleOutfan electrically connects with the input of IDFT, and the outfan of IDFT electrically connects with the input inserting cyclic prefix module, insertsThe outfan of cyclic prefix module electrically connects with the input of multi-path choice module, and the input of multi-path choice module is also with sameThe outfan electrical connection of step-frame tail module, the outfan of multi-path choice module electrically connects with electric lines of force；Monitoring processing module includesSignal detection module, synchronization module, serial parallel modular converter, remove cyclic prefix module, DFT, balance module, demodulation module andDecoder module, decoder module includes that data decoder module and frame control decoder module, demodulation module include data demodulation module andFrame controls demodulation module, and the input of data decoder module electrically connects with the outfan of data demodulation module, and frame controls decoding mouldThe outfan that the input of block controls demodulation module with frame electrically connects, and the input of demodulation module is electric with the outfan of balance moduleConnecting, the input of balance module electrically connects with the outfan of DFT, the input of DFT and the output removing cyclic prefix moduleEnd electrical connection, the input removing cyclic prefix module electrically connects with the outfan of serial parallel modular converter, serial parallel modulus of conversionThe input of block electrically connects with the outfan of synchronization module, the input of synchronization module respectively with the outfan of signal detection moduleElectrically connecting with electric lines of force, the input of signal detection module electrically connects with electric lines of force.

HVAC controller based on OFDM electric line communication system the most according to claim 1, it is characterised in that: independent controlProcessing module processed includes coding module, modulation module, IFFT, insertion cyclic prefix module, Parallel-serial convert module, synchronizing frame headModule and multi-path choice module, coding module includes that data coding module and frame control coding module, and modulation module includes dataModulation module and frame control modulation module, and the outfan of described data coding module is electric with the input of described data modulation moduleConnecting, the input of outfan and described frame control coding module that described frame controls coding module electrically connects, modulation moduleOutfan electrically connects with the input of IFFT, and the outfan of IFFT electrically connects with the input inserting cyclic prefix module, insertsThe outfan of cyclic prefix module electrically connects with the input of multi-path choice module, and the input of multi-path choice module is also with sameThe outfan electrical connection of step-frame head module, the outfan of multi-path choice module electrically connects with electric lines of force；Monitoring processing module includesSignal detection module, synchronization module, serial parallel modular converter, remove cyclic prefix module, FFT, balance module, demodulation module andDecoder module, decoder module includes that data decoder module and frame control decoder module, demodulation module include data demodulation module andFrame controls demodulation module, and the input of data decoder module electrically connects with the outfan of data demodulation module, and frame controls decoding mouldThe outfan that the input of block controls demodulation module with frame electrically connects, and the input of demodulation module is electric with the outfan of balance moduleConnecting, the input of balance module electrically connects with the outfan of FFT, the input of FFT and the output removing cyclic prefix moduleEnd electrical connection, the input removing cyclic prefix module electrically connects with the outfan of serial parallel modular converter, serial parallel modulus of conversionThe input of block electrically connects with the outfan of synchronization module, the input of synchronization module respectively with the outfan of signal detection moduleElectrically connecting with electric lines of force, the input of signal detection module electrically connects with electric lines of force.