CN106712807A - 16-frequency data transmission method for battery panel monitoring system - Google Patents
16-frequency data transmission method for battery panel monitoring system Download PDFInfo
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- CN106712807A CN106712807A CN201710047738.7A CN201710047738A CN106712807A CN 106712807 A CN106712807 A CN 106712807A CN 201710047738 A CN201710047738 A CN 201710047738A CN 106712807 A CN106712807 A CN 106712807A
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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
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
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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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Abstract
The present invention provides a 16-frequency data transmission method for a battery panel monitoring system. According to the 16-frequency data transmission method for the battery panel monitoring system, 16 kinds of frequencies are adopted to transmit data; the 16 kinds of frequencies are adopted to represent one byte of 8-bit data; each frequency represents four-bit data; the transmission of the one byte of 8-bit data requires two independent frequencies; a transmission module performs shift operation on 1-bit data twice; the 1-bit data are coupled to a direct current power line through enabling interruption twice; and a receiving module enables receiving interruption twice and performs shift operation on received 1-bit data twice. Compared with the prior art, the 16-frequency data transmission method of the invention has the advantages of simple processing, large-capacity data transmission and short frame transmission time.
Description
Technical field
The present invention relates to the battery board monitoring communications field, more particularly to a kind of 16 kinds for cell panel monitoring system
Frequency data transmission method.
Background technology
In the society of this advanced IT application, information and communication already turn into the lifeblood of modernized society；Extensive information
Exchange promotes cooperating with each other between members of society, promotes the development of social productive forces, creates huge economic benefit.
Direct current carrier communication is that carrier signal is coupled on power line by direct current carrier conveyer, then by direct current
Carrier wave reception device extracts above-mentioned carrier signal on power line, realizes power line direct current carrier communication.Power line carrier is led to
Letter is low by feat of passage construction cost, and reliability is high, the advantage such as equipment is simple, causes everybody wide in the security performance of photovoltaic system
General attention, and information can be gathered exactly, volume of transmitted data proposes greatly the requirement of harshness.
Current existing technology can realize the data transmission procedure of direct current carrier communication（See Fig. 1）, by photovoltaic module back
Terminal box in data acquisition and sending module, pulse carrier signal is coupled in DC power line, distal end install one
Individual data reception module, extracts the direct current carrier signal on DC power line, is calculated according to collision probability, uploads data.
The method that general traditional data transmission method transmits data using 2 kinds of frequencies；Due in 4 kinds of frequency transmission modes
Under, every kind of frequency represents 1 data bit respectively：0,1；A data for byte are often transmitted, sending module needs mobile data 8
It is secondary to send pulse carrier signal, it is necessary to start 8 times and send to interrupt；Receiver module is also required to start disconnecting in 8 receptions
Data are received, the data of reception is carried out into 8 moving operations and is assembled into a byte data；During aforesaid operations, in controller
Very frequently, shifting function is also very cumbersome for disconnected startup；It will be evident that 8 data of a byte are represented with 2 kinds of frequencies, it is each
Frequency representative two bits position is planted, volume of transmitted data is smaller；When needing to use 8 cycle times come the data for representing byte
Between, the transmission time of data is more long.
The content of the invention
Data uploading method and the battery board monitoring system of the purpose of the present invention in a kind of disclosed cell panel monitoring system
On the basis of system, for data transfer procedures, it is proposed that a kind of 16 kinds of frequency data for cell panel monitoring system
Transmission method.It is mainly used in solving transmitted data amount small, frame transmission time is long and problem of complex disposal process.
To achieve the above object, the present invention provides following concrete technical scheme：
A kind of 16 kinds of frequency data transmission methods for cell panel monitoring system, it is characterised in that：In cell panel monitoring system
In the direct current carrier signal of each piece of transmission of the sending module of cell panel be transferred on DC power line by modulation circuit,
The receiver module of the distal end of DC power line, direct current carrier signal is modulated by signal coupler；The direct current carrier signal
Transmitting procedure include：The data handling procedure of sending module, the transmission data procedures of sending module, receiver module connect to data
Receipts process, reception data are treated journey；
The data handling procedure of a, sending module；Controller obtains the data frame being made up of key parameter, and calculates data frame
Length, be a treatment unit with byte, then first to process the low nibble of first character section, reprocessing byte it is high by half
The sequential processes of byte；Processing procedure is as follows：It is assumed that the length of data frame is n bytes, realization is needed DC carrier wave communication institute
16 kinds of frequencies of demand are decided, and the corresponding periodic quantity of each frequency are calculated according to 16 kinds of frequencies, finally by periodic quantity
A cycle value look-up table is set up, and sets up an array for the integer type of 2n, for depositing every 4 data corresponding week
Time value；Next first judge that whether data length, more than 0, if greater than 0, illustrates pending data also in need, will read
Low 4 of byte pass through the look-up table of the data periodic quantity that frequency has been corresponded to for establishing, and find corresponding periodic quantity, and should
Periodic quantity is inserted in the array of 2n sizes, subtracts 1 by data length, is again introduced into judging flow, until data length is 0；If
Judge that data length is not more than 0, illustrate that data terminate to periodic quantity corresponding process treatment, it is straight to modulate to start PWM functions
Stream carrier signal；
The transmission data procedures of b, sending module；Controller first reads data by corresponding array length after 4 treatment of height,
Interrupted into PWM, whether first judge the length of array more than 0, if being more than 0, illustrate the data that modulation also in need sends,
Periodic quantity is loaded and gives period register value, and the value of comparand register is set, then array length is subtracted 1, exited in this
It is disconnected, wait PWM next time to interrupt；If it is determined that array length is not more than 0, illustrates that data are modulated and finish, wait next frame number
According to transmission.
C, receiver module are to DRP data reception process；The direct current carrier signal transmitted from DC power line is by proprietary
Modulating circuit modulates out after, by signal send into controller trapping module, controller start capture interruption processed, controller
By reading capture value, the periodic quantity of frequency is calculated, then by the periodic quantity for calculating, periodic quantity institute is checked in by being worth look-up table
Corresponding 4 data, 4 data are stored in the array of 2n.Then judge whether data frame receives to terminate, if do not connect
Receipts terminate, and will continue waiting for next interruption；If received end, a frame data will be indicated to complete the mark position 1 for receiving,
Exit data capture interruption；
D, reception data are treated journey；Whether controller is 1 by inquiring about the flag bit that data are completed, if being 1, will
Into framing treatment, the processing procedure of framing is as follows：Judge that whether array length, more than 0, if being more than 0, illustrates there be number
According to treatment is needed, controller will read data from byte where low 4, and byte where from 4 high reads data and is moved to the left,
Then two bytes are carried out into step-by-step or operation, acquired results byte data is stored in the frame number group of n sizes, the array of 2n
Length subtracts 2, into next data processing, it is known that untill the data processing in the array of 2n is completed；If the length of the array of 2n
Degree position is not more than 0, illustrates that a frame data framing is completed, and the flag bit flag bit that data are completed resets and indicates frame treatment
Position 1, for application program to data whether the judgement that framing is completed, last end frame processes framing process.
Preferably, data are transmitted using 16 kinds of frequencies, 8 data of a byte is represented with 16 kinds of frequencies, each
According to position, under 16 kinds of frequency modes, every kind of frequency represents data 0000 (0), 0001 (1), 0010 to frequency representative four figures respectively
(2),0011(3),0100(4),0101(5),0110(6),0111(7),1000(8),1001(9),1010(A),1011(B),
1100(C),1101(D),1110(E),1111(F)；One byte, 8 data need 2 independent frequency transmission, sending module
2 shifting functions are carried out to a data for byte, a data for byte are coupled data into directly by starting 2 interruptions
On stream power line；Receiver module starts 2 times and receives interruption, and the data for word for receiving are carried out into 2 shifting functions is assembled into
One byte data.
Preferably, the data start collection cell plate voltage, electric current by the controller described in cell panel monitoring system
It is combined into the key parameter data such as temperature, forms data frame.
The present invention has advantages below compared to existing technology：
（1）Transmission quantity is big；Under 16 kinds of frequency transmission modes, 1 frequency can represent 4 data, and data volume is 2 kinds of frequency transmission
4 times under pattern；
（2）Transmission time is short；Under 16 kinds of frequency transmission modes, 2 cycles can represent 4 data, and transmission time is 2 kinds of frequencies
A quarter under transmission mode；
（3）Controller operational ton is few；Under 16 kinds of frequency transmission modes, controller is opened interruption in transmission data and reception data
Dynamic number of times, and the assembly operation number of times of data is 2 kinds of frequencies when fractured operation and reception data of the data when data are sent
A quarter under transmission mode.
Brief description of the drawings
For clearer the explanation embodiment of the present invention or technical scheme of the prior art, below by embodiment or existing
The accompanying drawing to be used needed for technology description does simple introduction, it is clear that, drawings in the following description are only this hair
Bright embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to carrying
The accompanying drawing of confession obtains other accompanying drawings.
The system schematic of Fig. 1 battery board monitoring direct current carrier communication devices；
Single byte operation number of times under 2 kinds of frequency transmission modes of Fig. 2；
Single byte operation number of times under 16 kinds of frequency transmission modes of Fig. 3；
The comparison diagram the time required to single byte is transmitted under 2 kinds of transmission modes of Fig. 4；
Periodic quantity processing procedure of Fig. 5 sending modules data conversion into respective frequencies；
Fig. 6 sending modules send PWM flow charts to the periodic quantity of a frame data；
Fig. 7 receiver modules receive the process of data to the data transmitted on DC power line by capturing；
Data frame of the data assembling that Fig. 8 receiver modules will be received into a frame standard；
The frequency of table 1, the one-to-one relationship between periodic quantity and data.
Specific embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed implementation method and specific operating process, but protection scope of the present invention is not limited to following implementations
Example.
The present embodiment provides and 8 methods of data of a byte, each frequency representative four is represented with 16 kinds of frequencies
Data bit（It is shown in Table 1）, transmission quantity is approximately 4 times under the transmission mode under 2 kinds of frequencies；2 cycle times are needed to use to represent
One data time of word, volume of transmitted data is a quarter of transmission mode under 2 kinds of frequencies（See Fig. 4）；Controller is interrupted
The number of starts and a quarter that data shifting function number of times is also under 2 kinds of frequency modes, can mitigate controller processing data
Expense.
Under 16 kinds of frequency modes, every kind of frequency represents data respectively：0000(0),0001(1),0010(2),0011
(3),0100(4),0101(5),0110(6),0111(7),1000(8),1001(9),1010(A),1011(B),1100(C),
1101(D),1110(E),1111(F).One byte, 8 data need 2 independent frequency transmission.Sending module is to a word
The data of section carry out 2 shifting functions（See Fig. 3）, a data for byte are coupled data into directly by starting 2 interruptions
On stream power line；Receiver module starts 2 times and receives interruption, and the data for word for receiving are carried out into 2 shifting functions is assembled into
One byte data.
Application of the present embodiment in cell panel monitoring system, each piece of transmission of cell panel in cell panel monitoring system
Connected between module and receiver module as shown in Figure 1；The each piece of direct current carrier signal of the transmission of the sending module of cell panel leads to
Overmodulated circuit is transferred on DC power line, in the receiver module of the distal end of DC power line, is modulated by signal coupler
Go out direct current carrier signal.
In cell panel monitoring system, controller starts collection cell plate voltage, the key parameter such as electric current and temperature.Control
These critical datas are combined into a frame data frame by device, and the application does not do further restriction to data frame format.
The data handling procedure of sending module is illustrated in figure 5, controller obtains the data frame being made up of key parameter, and
The length of data frame is calculated, is a treatment unit with byte.Then first processing the low nibble of first character section, then locate
The sequential processes of the nibble high of byte are managed, processing procedure is as follows：
The length of data frame is currently assumed for n bytes, under realization needs to determine the required 16 kinds of frequencies of DC carrier wave communication
Come, the corresponding periodic quantity of each frequency calculated according to 16 kinds of frequencies, periodic quantity is finally set up into a cycle value look-up table,
And an array for the integer type of 2n is set up, for depositing the corresponding periodic quantity of every 4 data；Next data are first judged
Whether length is more than 0, if greater than 0, illustrates pending data also in need, will read low 4 of byte by establishing
The look-up table of data periodic quantity that has corresponded to of frequency, find corresponding periodic quantity, and the periodic quantity is inserted the number of 2n sizes
In group, data length is subtracted 1, be again introduced into judging flow, until data length is 0；If it is determined that data length is not more than 0,
Illustrate that data terminate to periodic quantity corresponding process treatment, PWM functions can be started to modulate direct current carrier signal.
The process that sending module sends data is as shown in Figure 6.
Controller first reads data by corresponding array length after 4 treatment of height；Interrupted into PWM, first judge number
Whether the length of group is more than 0, if being more than 0, illustrates the data that modulation also in need sends, and periodic quantity is loaded and is posted to the cycle
Storage value, and the value of comparand register is set, then array length is subtracted 1, this interruption is exited, wait PWM next time to interrupt；Such as
Fruit judges that array length is not more than 0, illustrates that data are modulated and finishes, and waits next frame data is activation.
Receiver module is as shown in Figure 7 to DRP data reception process.
The direct current carrier signal transmitted from DC power line by proprietary modulating circuit modulates out after, by signal
Feeding controller trapping module.Controller starts capture interruption and is processed, and controller calculates frequency by reading capture value
Periodic quantity, then by the periodic quantity for calculating, 4 data corresponding to periodic quantity are checked in by being worth look-up table, 4 data are deposited
It is placed in the array of 2n.Then judge whether data frame receives to terminate, if do not receive terminated, in continuing waiting for next time
It is disconnected；If received end, a frame data will be indicated to complete the mark position 1 for receiving, exit data capture interruption.
After one frame data are finished receiving, the array data of 2n of the controller needs to receiving carries out framing, its processing procedure
As shown in Figure 8.
Whether controller is 1 by inquiring about the flag bit that data are completed, if being 1, will be processed into framing, framing
Processing procedure is as follows：Whether array length being judged more than 0, if being more than 0, illustrating that also data need treatment, controller will
Byte reads data where from low 4, and byte where from 4 high reads data and is moved to the left, and then carries out two bytes
Step-by-step or operation, acquired results byte data is stored in the frame number group of n sizes, and the array length of 2n subtracts 2, into next
Data processing, it is known that untill the data processing in the array of 2n is completed；If the length position of the array of 2n is not more than 0, one is illustrated
Frame data framing is completed, and the flag bit flag bit that data are completed resets and frame is processed into mark position 1, for application program
To data whether the judgement that framing is completed, last end frame processes framing process.
Preferable case study on implementation of the invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (3)
1. a kind of 16 kinds of frequency data transmission methods for cell panel monitoring system, it is characterised in that：In battery board monitoring system
The direct current carrier signal of each piece of transmission of the sending module of cell panel is transferred on DC power line by modulation circuit in system,
In the receiver module of the distal end of DC power line, direct current carrier signal is modulated by signal coupler；The direct current carrier letter
Number transmitting procedure include：The data handling procedure of sending module, transmission data procedures, the receiver module of sending module are to data
Reception process, reception data are treated journey；
The data handling procedure of a, sending module；Controller obtains the data frame being made up of key parameter, and calculates data frame
Length, be a treatment unit with byte, then first to process the low nibble of first character section, reprocessing byte it is high by half
The sequential processes of byte；Processing procedure is as follows：It is assumed that the length of data frame is n bytes, realization is needed DC carrier wave communication institute
16 kinds of frequencies of demand are decided, and the corresponding periodic quantity of each frequency are calculated according to 16 kinds of frequencies, finally by periodic quantity
A cycle value look-up table is set up, and sets up an array for the integer type of 2n, for depositing every 4 data corresponding week
Time value；Next first judge that whether data length, more than 0, if greater than 0, illustrates pending data also in need, will read
Low 4 of byte pass through the look-up table of the data periodic quantity that frequency has been corresponded to for establishing, and find corresponding periodic quantity, and should
Periodic quantity is inserted in the array of 2n sizes, subtracts 1 by data length, is again introduced into judging flow, until data length is 0；If
Judge that data length is not more than 0, illustrate that data terminate to periodic quantity corresponding process treatment, it is straight to modulate to start PWM functions
Stream carrier signal；
The transmission data procedures of b, sending module；Controller first reads data by corresponding array length after 4 treatment of height,
Interrupted into PWM, whether first judge the length of array more than 0, if being more than 0, illustrate the data that modulation also in need sends,
Periodic quantity is loaded and gives period register value, and the value of comparand register is set, then array length is subtracted 1, exited in this
It is disconnected, wait PWM next time to interrupt；If it is determined that array length is not more than 0, illustrates that data are modulated and finish, wait next frame number
According to transmission.
C, receiver module are to DRP data reception process；The direct current carrier signal transmitted from DC power line is by proprietary modulation
Circuit is modulated after coming, and signal is sent into controller trapping module, and controller starts capture interruption and processed, and controller passes through
Capture value is read, the periodic quantity of frequency is calculated, then by the periodic quantity for calculating, is checked in corresponding to periodic quantity by being worth look-up table
4 data, 4 data are stored in the array of 2n；Then judge whether data frame receives to terminate, if not receiving knot
Beam, will continue waiting for next interruption；If received end, a frame data will be indicated to complete the mark position 1 for receiving, exited
Data capture is interrupted；
D, reception data are treated journey；Whether controller is 1 by inquiring about the flag bit that data are completed, if being 1, will
Into framing treatment, the processing procedure of framing is as follows：Judge that whether array length, more than 0, if being more than 0, illustrates there be number
According to treatment is needed, controller will read data from byte where low 4, and byte where from 4 high reads data and is moved to the left,
Then two bytes are carried out into step-by-step or operation, acquired results byte data is stored in the frame number group of n sizes, the array of 2n
Length subtracts 2, into next data processing, it is known that untill the data processing in the array of 2n is completed；If the length of the array of 2n
Degree position is not more than 0, illustrates that a frame data framing is completed, and the flag bit flag bit that data are completed resets and indicates frame treatment
Position 1, for application program to data whether the judgement that framing is completed, last end frame processes framing process.
2. a kind of 16 kinds of frequency data transmission methods for cell panel monitoring system according to claim 1, its feature
It is：Data are transmitted using 16 kinds of frequencies, 8 data of a byte, each frequency representative four are represented with 16 kinds of frequencies
Position data bit, under 16 kinds of frequency modes, every kind of frequency represents data 0000 (0), 0001 (1), 0010 (2), 0011 respectively
(3),0100(4),0101(5),0110(6),0111(7),1000(8),1001(9),1010(A),1011(B),1100(C),
1101(D),1110(E),1111(F)；One byte, 8 data need 2 independent frequency transmission, and sending module is to a word
The data of section carry out 2 shifting functions, and one data of byte is coupled data into DC power line by starting 2 interruptions
On；Receiver module starts 2 times and receives interruption, and the data for word for receiving are carried out into 2 shifting functions is assembled into a byte
Data.
3. according to a kind of any described 16 kinds of frequency data transmission methods for cell panel monitoring system of claim 1,2,
It is characterized in that：The data start collection cell plate voltage, electric current and temperature by the controller described in cell panel monitoring system
The key parameter data such as degree are combined into, and form data frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710047738.7A CN106712807A (en) | 2017-01-22 | 2017-01-22 | 16-frequency data transmission method for battery panel monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710047738.7A CN106712807A (en) | 2017-01-22 | 2017-01-22 | 16-frequency data transmission method for battery panel monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065046A (en) * | 2009-11-11 | 2011-05-18 | 北京泰美世纪科技有限公司 | Information transmission method and signal generation device of OFDM (Orthogonal Frequency Division Multiplexing) system |
| CN202906492U (en) * | 2012-11-28 | 2013-04-24 | 东方日立(成都)电控设备有限公司 | Solar cell panel generating monitoring system based on DC carrier wave technology |
| CN104008078A (en) * | 2014-05-27 | 2014-08-27 | 安徽中兴继远信息技术股份有限公司 | Method for high-speed transmission between data transmission boards based on FPGA |
| CN104714908A (en) * | 2013-12-13 | 2015-06-17 | 上海华虹集成电路有限责任公司 | SPI capable of supporting master/slave mode |
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2017
- 2017-01-22 CN CN201710047738.7A patent/CN106712807A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065046A (en) * | 2009-11-11 | 2011-05-18 | 北京泰美世纪科技有限公司 | Information transmission method and signal generation device of OFDM (Orthogonal Frequency Division Multiplexing) system |
| CN202906492U (en) * | 2012-11-28 | 2013-04-24 | 东方日立(成都)电控设备有限公司 | Solar cell panel generating monitoring system based on DC carrier wave technology |
| CN104714908A (en) * | 2013-12-13 | 2015-06-17 | 上海华虹集成电路有限责任公司 | SPI capable of supporting master/slave mode |
| CN104008078A (en) * | 2014-05-27 | 2014-08-27 | 安徽中兴继远信息技术股份有限公司 | Method for high-speed transmission between data transmission boards based on FPGA |
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Application publication date: 20170524 |