CN103198640A - Light transmission method and device of real-time mass electric physical quantity - Google Patents
Light transmission method and device of real-time mass electric physical quantity Download PDFInfo
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- CN103198640A CN103198640A CN2013101285193A CN201310128519A CN103198640A CN 103198640 A CN103198640 A CN 103198640A CN 2013101285193 A CN2013101285193 A CN 2013101285193A CN 201310128519 A CN201310128519 A CN 201310128519A CN 103198640 A CN103198640 A CN 103198640A
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Abstract
The invention discloses a light transmission method and device of real-time mass electric physical quantity and relates to the field of an intelligent distribution network. The method comprises the following steps of: collecting and processing perfect information data of the real-time mass electric physical quantity; extracting characteristic information and separating non-characteristic information; performing light transmission encoding and light transmission controlling on real-time mass electric physical quantity data; performing light data transmitting and classified storing on the real-time mass electric physical quantity; and reducing the light transmitted real-time mass electric physical quantity. The device is provided with a perfect information data collecting and characteristic information extracting unit, a real-time mass electric physical quantity data light transmission encoding and controlling unit, a real-time mass electric physical quantity data light data transmitting and classified storing unit and a light transmitted real-time mass electric physical quantity data reducing unit. Compared with the prior art, the intelligent information processing is performed in the invention to greatly reduce the amount of the real-time transmission information so as to improve the transmission efficiency and the instantaneity of the real-time mass electric physical quantity data.
Description
Technical field
The present invention relates to intelligent grid and technology of Internet of things field, particularly a kind of magnanimity light-duty transmission method of real-time electric physical quantity and device.
Background technology
Along with the fast development of 21 century information control technology, intelligent grid has become the developing direction of following electrical network, and at present, countries in the world are all in the research of technique of carrying out intelligent grid and pilot construction.Intelligent grid comprises four essential characteristics technically, i.e. digitizing, informationization, robotization and interactive, and wherein, informationization is the very important feature that intelligent grid is different from traditional electrical network.Under the System Framework of strong intelligent grid, ICT (information and communication technology) is being brought into play the shoring of foundation effect, in real time, at a high speed, two-way, integrated information communication platform then is that intelligent grid is safe and efficient, the basis of the interactive operation of self-healing, do not have such Back ground Information communications platform to support, any informationization and intelligentized feature all can't realize.
At present, the WAMS of electrical network (WAMS) realizes that by synchronous vector measurement unit (PMU) the whole network sight knows, owing to be subjected to the restriction of communication network data transmission and memory capacity, WAMS can only transmit the monitoring information of operation of power networks state the cycle, power system monitor and dispatching center can't obtain the real time panoramic information of electrical network, and then are unfavorable for the transparent of disturbing phenomenon such as electrical network dynamic power quality (falling as the large-scale wind power line voltage that causes that is incorporated into the power networks) and low-frequency oscillation are known and analysis decision.The intelligent grid requirement is accurately gathered and high efficiency of transmission all kinds of real-time and non real-time panorama information of describing power network object, structure and state, realizes that the height of flow of power, information flow, Business Stream is integrated and shared.As seen, intelligent grid is all had higher requirement and bigger challenge to ICT (information and communication technology) and communications platform.
Summary of the invention
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals:
The light-duty transmission method of the real-time electric physical quantity of a kind of magnanimity is characterized in that, comprises the following steps:
Step 1, the data acquisition and processing (DAP) of the real-time electric physical quantity perfect information of magnanimity;
Step 2 is carried out information extraction at the perfect information data characteristics of step 1 collection and is separated with non-characteristic information;
Step 3, the perfect information data after separating at step 2 are carried out light-duty transfer encoding and the light-duty transmission control of the real-time electric physical quantity data of magnanimity;
Step 4, the real-time electric physical quantity data of magnanimity after step 3 encoded are carried out light-duty data transmission and classification storage;
Step 5 is carried out the data reduction with the real-time electric physical quantity data of magnanimity of the storage of having classified in the step 4.
At the light-duty transmission method of the real-time electric physical quantity of above-mentioned a kind of magnanimity, in the described step 1: the data acquisition and processing (DAP) of the real-time electric physical quantity perfect information of magnanimity is to carry out at the electric physical quantity of observing and controlling object, that is: the voltage and current of the input and output of observing and controlling object, carry out perfect information data acquisition in real time synchronously, perfect information comprises transient state component, steady-state component and harmonic component, and the mark markers; Treatment step namely filters the back classification to undesired signal and preserves.
At the light-duty transmission method of the real-time electric physical quantity of above-mentioned a kind of magnanimity, in the described step 2, characteristic information is the information of ins and outs in the reflection perfect information; Excavate and data analysis by synchronously real-time perfect information data are carried out intelligent data, perfect information is decomposed into characteristic information and non-characteristic information, characteristic information is come out from the real-time electric physical quantity extracting data of magnanimity; The information of perfect information of can reducing behind the characteristic information extraction is non-characteristic information; Represent with formula one:
S (s
1, s
2..., s
n, t)=TZXX (z
1, z
2..., z
N1, t) //FTXX (x
1, x
2..., x
N2, t) formula one;
Wherein, S represents perfect information, s represents the variable of perfect information S, and n represents the variable number of perfect information S, and // representation feature information and the combination of non-characteristic information are reduced into perfect information, TZXX and FTXX be representation feature information and non-characteristic information respectively, t represents data acquisition constantly, the variable of z representation feature information TZXX, and x represents the variable of non-characteristic information FTXX, the variable number of n1 and n2 difference representation feature information TZXX and non-characteristic information FTXX, n〉n1+n2.
At the light-duty transmission method of the real-time electric physical quantity of above-mentioned a kind of magnanimity, in the described step 3: adopt binary function that the real-time electric physical quantity data of the magnanimity of light-duty transmission are carried out light-duty transfer encoding B(x
1, x
2..., x
m), determine the corresponding relation of non-characteristic information FTXX and characteristic information TZXX, illustrate that non-characteristic information FTXX and characteristic information TZXX combination is reduced into the rule of perfect information;
Light-duty transmission control law is earlier with different non-characteristic information FTXX and light-duty transfer encoding B(x
1, x
2..., x
m) leave the destination end of communication in, then with the characteristic information TZXX under the same non-characteristic information FTXX and corresponding light-duty transfer encoding B(x
1, x
2..., x
m) be transferred to destination end from the source end of communicating by letter together.
At the light-duty transmission method of the real-time electric physical quantity of above-mentioned a kind of magnanimity, in the described step 4, concrete grammar is that the source end from communication is transferred to characteristic information TZXX and the corresponding light-duty transfer encoding B(x under the same non-characteristic information FTXX of destination end
1, x
2..., x
m), by the light-duty transfer encoding B(x under the same non-characteristic information FTXX
1, x
2..., x
m) the classification storage.
At the light-duty transmission method of the real-time electric physical quantity of above-mentioned a kind of magnanimity, in the described step 5: when needs use the real-time electric physical quantity data of magnanimity, by markers T from by light-duty transfer encoding B(x
1, x
2..., x
m) extract light-duty transmission data in the classification storage list, and the rule that adopts non-characteristic information FTXX and characteristic information TZXX combination to be reduced into perfect information is carried out the real-time electric physical quantity data reduction of light-duty transmission magnanimity.
The light-duty transmitting device of the real-time electric physical quantity of a kind of magnanimity, it is characterized in that, comprise perfect information data acquisition and characteristic information extraction unit, the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity and light-duty transmission control unit, the light-duty data transmission of the real-time electric physical quantity of magnanimity and classification storage unit, the real-time electric physical quantity data reduction unit of light-duty transmission magnanimity; Wherein, the perfect information data acquisition is connected with the input of light-duty transmission control unit with the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity with the output of characteristic information extraction unit, the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity is connected with the input of the light-duty data transmission of the real-time electric physical quantity of magnanimity with the classification storage unit with light-duty transmission control unit output, and the light-duty data transmission of the real-time electric physical quantity of magnanimity is connected with the input of the real-time electric physical quantity data reduction unit of light-duty transmission magnanimity with the output of classification storage unit.
At the light-duty transmitting device of the real-time electric physical quantity of above-mentioned a kind of magnanimity, described perfect information data acquisition and characteristic information extraction unit comprise the synchronous high-resolution data collection of real time high-speed multichannel and access unit, high-performance microprocessor and application software functional module, carry out the synchronous high-resolution data collection of real time high-speed multichannel earlier, by the application software functional module sampled data being carried out data then filters, remove interfere information, carry out characteristic information again and extract;
The synchronous high-resolution data collection of described high-speed, multi-path and access unit employing are not less than 8 tunnel AC sampling autonomous channel, and every road adopts the GPS synchronizing signal to trigger the sampling maintenance; Sample frequency is not less than 1Mbit/s; The AD conversion is not less than 14;
Described high-performance microprocessor is not less than 32, and dominant frequency is not less than 100MIPS;
Described application software functional module comprises data acquisition unit, data filtering units, electric Physical Quantity Calculation unit, characteristic information extraction unit and data communication units.
At the light-duty transmitting device of the real-time electric physical quantity of above-mentioned a kind of magnanimity, the light-duty transfer encoding of the real-time electric physical quantity data of described magnanimity and light-duty transmission control unit adopt binary function that the real-time electric physical quantity data of the magnanimity of light-duty transmission are carried out light-duty transfer encoding B(x
1, x
2..., x
m), determine the corresponding relation of non-characteristic information FTXX and characteristic information TZXX, illustrate that non-characteristic information FTXX and characteristic information TZXX combination is reduced into the rule of perfect information, the different agreement that the frame format of its data is chosen according to different application demands defines, but inserts light-duty transmission control coding (0000 x of 1 byte between the frame head section of selected agreement and the data segment
1x
2x
3x
4).
At the light-duty transmitting device of the real-time electric physical quantity of above-mentioned a kind of magnanimity, the light-duty data transmission of the real-time electric physical quantity of described magnanimity comprises communication computer with the classification storage unit; The real-time electric physical quantity data reduction unit of described magnanimity comprises data reduction application software functional module; The real-time electric physical quantity of magnanimity arrives destination by communication computer with the light-duty data transmission of source end, and the classification storage; When the real-time electric physical quantity of magnanimity need be employed, carry out the real-time electric physical quantity data reduction of magnanimity by data reduction application software functional module.
Therefore, the present invention has following advantage: 1. utilize the Signal Pretreatment technology that mass data is carried out denoising, gone redundancy and filtration treatment, guarantee simplifying effectively of information source data; 2. adopt characteristic information to extract and the sorting code number method, realize lightness transmission and the storage of mass data, improve transfer efficiency and the real-time of magnanimity real time data; 3. adopt the seamless integrated communicaton between light-duty transmission control and mass data method of reducing realization different terminal equipment and the application system.This method has broken through limitation and the bottleneck of conventional data transmission technology; 4. by separation characteristic information and public information, can realize under communication resource condition of limited, can significantly improving real-time and the reliability of magnanimity information transmission than the more code stream transmission of lightness of conventional data transmission technology.
In a word, the present invention can reduce data transmission and the memory space of magnanimity real-time information in a large number, improves transmission speed and the transfer efficiency of real time data, significantly improves real-time and the reliability of magnanimity information transmission.
Description of drawings
Fig. 1 is the embodiments of the invention schematic flow sheets.
Fig. 2 is this device example structure block scheme.
Fig. 3 is application software functional module structure block scheme.
Fig. 4 hardware adaptations structural representation of the present invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
Describe in detail below in conjunction with drawings and Examples:
One, the light-duty transmission method of the real-time electric physical quantity of magnanimity
The light-duty transmission method embodiment of the real-time electric physical quantity of magnanimity process flow diagram as shown in Figure 1, as seen from Figure 1:
1, step 1 is the real-time electric physical quantity perfect information of magnanimity data acquisition and processing (DAP) 1:
To the electric physical quantity of observing and controlling object, that is: the voltage and current of the input and output of observing and controlling object carries out perfect information data acquisition in real time synchronously, and perfect information comprises transient state component, steady-state component and harmonic component, and the mark markers; Undesired signal is filtered the back classification preserves.
2, step 2 separates 2 for characteristic information extracts with non-characteristic information:
Characteristic information is the information of ins and outs in the reflection perfect information.By being carried out intelligent data, synchronously real-time perfect information data excavate and data analysis, perfect information is decomposed into characteristic information (individual information, distinctive, as to change information) and non-characteristic information (common information, that have, constant information), characteristic information is come out from the real-time electric physical quantity extracting data of magnanimity.The information of perfect information of can reducing behind the characteristic information extraction is non-characteristic information.Represent with formula one.
S (s
1, s
2..., s
n, t)=TZXX (z
1, z
2..., z
N1, t) //FTXX (x
1, x
2..., x
N2, t) formula one;
Wherein: S represents perfect information, s represents the variable of perfect information S, n represents the variable number of perfect information S, " // " representation feature information and the combination of non-characteristic information are reduced into perfect information, and TZXX and FTXX be representation feature information and non-characteristic information respectively, and t represents that data acquisition constantly, the variable of z representation feature information TZXX, x represents the variable of non-characteristic information FTXX, the variable number of n1 and n2 difference representation feature information TZXX and non-characteristic information FTXX, n〉n1+n2.
Characteristic information extract separate with non-characteristic information include but not limited to following several:
1) when electric physical quantity was the steady-state sine function, characteristic information had: frequencies omega
1, amplitude U
1And initial phase
Mark sampling markers T; Non-characteristic information FTXX is expressed as shown in the formula (1).
T is the time variable arbitrary value in the formula (1).
2) when electric physical quantity was the steady-state distortion sine function, characteristic information had: frequencies omega
k, amplitude U
kAnd initial phase
K=1,2,3 ..., n, mark sampling markers T; Non-characteristic information FTXX is expressed as shown in the formula (2).
T is the time variable arbitrary value in the formula (2).
3) when electric physical quantity was transient functions (decay non-periodic function) and steady-state sine function sum, characteristic information had: 1. steady-state sine function characteristic information: frequencies omega
1, amplitude U
1And initial phase
2. transient functions (decay non-periodic function) characteristic information: initial value U
0, initial phase
The concussion frequencies omega
0With attenuation coefficient β
0, p
1, p
2, p; Mark sampling markers T; Non-characteristic information FTXX is expressed as shown in the formula (3).
In the formula (3): t is the time variable arbitrary value.
Work as p
1≠ p
2When (real character root, non-oscillatory decay),
Work as p
1=p
2During=p (real character root, threshold oscillation decay), u (p
1, p
2, t)=U
0Te
-pt
Work as p
1, p
2=β
0± j ω
0When (conjugate complex characteristic root, oscillatory extinction),
U (p
1, p
2, t) in, U
01, U
02, U
0With
By starting condition (t=0, u (p
1, p
2, t)=u (p
1, p
2, 0)) determine ω
0, β
0, p
1, p
2Determined or the employing parameter identification method by the structure and parameter of electrical network with p, according to measured data, carry out equivalent resistance, equivalent inductance and the equivalent capacity parameter identification of second-order system.
4) when electric physical quantity was transient functions (decay non-periodic function) and steady-state distortion sine function sum, characteristic information had: 1. steady-state distortion sine function characteristic information: frequencies omega
k, amplitude U
kAnd initial phase
K=1,2,3 ..., n, mark sampling markers T; 2. transient functions (decay non-periodic function) characteristic information: initial value U
0, initial phase
The concussion frequencies omega
0With attenuation coefficient β
0, p
1, p
2P; Mark sampling markers T; Non-characteristic information FTXX is expressed as shown in the formula (4).
In the formula (4): t is the time variable arbitrary value.
Work as p
1≠ p
2When (real character root, non-oscillatory decay),
Work as p
1=p
2During=p (real character root, threshold oscillation decay), u (p
1, p
2, t)=U
0Te
-pt
Work as p
1, p
2=β
0± j ω
0When (conjugate complex characteristic root, oscillatory extinction),
U (p
1, p
2, t) in, U
01, U
02, U
0With
By starting condition (t=0, u (p
1, p
2, t)=u (p
1, p
2, 0)) determine ω
0, β
0, p
1, p
2Determined or the employing parameter identification method by the structure and parameter of electrical network with p, according to measured data, carry out equivalent resistance, equivalent inductance and the equivalent capacity parameter identification of second-order system.
3, step 3 is light-duty transfer encoding and the light-duty transmission control 2 of the real-time electric physical quantity data of magnanimity:
Adopt binary function that the real-time electric physical quantity data of the magnanimity of light-duty transmission are carried out light-duty transfer encoding B(x
1, x
2..., x
m), determine the corresponding relation of non-characteristic information FTXX and characteristic information TZXX, illustrate that non-characteristic information FTXX and characteristic information TZXX combination is reduced into the rule of perfect information.
Non-characteristic information FTXX, the characteristic information TZXX of the real-time electric physical quantity data of magnanimity and light-duty transfer encoding B(x
1, x
2..., x
m) between corresponding relation include but not limited to following several:
1) when electric physical quantity is the steady-state sine function, the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity is: the characteristic information group:
Light-duty transfer encoding: B (x
1, x
2, x
3, x
4)=0100=4, non-characteristic information FTXX corresponding (1);
2) when electric physical quantity is the steady-state distortion sine function, the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity is: the characteristic information group:
Light-duty transfer encoding: B (x
1, x
2, x
3, x
4)=1000 (scale-of-two)=8 (decimal system), non-characteristic information FTXX corresponding (2);
3) when electric physical quantity is transient functions and steady-state sine function sum, the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity: B (x
1, x
2, x
3, x
4) three kinds of situations of branch:
(1) transient functions is non-oscillatory attenuation function (p
1≠ p
2The real character root)
The characteristic information group:
Light-duty transfer encoding: B (x
1, x
2, x
3, x
4)=0101 (scale-of-two)=5 (decimal system), non-characteristic information FTXX corresponding (3.1);
(2) transient functions is threshold oscillation attenuation function (p
1=p
2=p real character root)
The characteristic information group:
Light-duty transfer encoding: B (x
1, x
2, x
3, x
4)=0110 (scale-of-two)=6 (decimal system), non-characteristic information FTXX corresponding (3.2);
(3) transient functions is oscillatory extinction function (p
1, p
2=β
0± j ω
0The conjugate complex characteristic root)
The characteristic information group:
Light-duty transfer encoding: B (x
1, x
2, x
3, x
4)=0111 (scale-of-two)=7 (decimal system), non-characteristic information FTXX corresponding (3.3);
4) when electric physical quantity was transient functions and steady-state distortion sine function sum, the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity divided three kinds of situations:
(1) transient functions is non-oscillatory attenuation function (p
1≠ p
2The real character root)
The characteristic information group:
Light-duty transfer encoding: B (x
1, x
2, x
3, x
4)=1001 (scale-of-two)=9 (decimal system), non-characteristic information FTXX corresponding (4.1);
(2) transient functions is threshold oscillation attenuation function (p
1=p
2=p real character root)
The characteristic information group:
Light-duty transfer encoding: B (x
1, x
2, x
3, x
4)=1010 (scale-of-two)=10 (decimal system), non-characteristic information FTXX corresponding (4.2);
(3) transient functions is oscillatory extinction function (p
1, p
2=β
0± j ω
0The conjugate complex characteristic root)
The characteristic information group:
Light-duty transfer encoding: B (x
1, x
2, x
3, x
4)=1011 (scale-of-two)=11 (decimal system), non-characteristic information FTXX corresponding (4.3);
Non-characteristic information FTXX, characteristic information TZXX and light-duty transfer encoding B(x
1, x
2..., x
m) between corresponding relation as shown in table 1.
Mapping table between the non-characteristic information of table 1, characteristic information and the light-duty transfer encoding
Light-duty transmission control law is earlier with different non-characteristic information FTXX and light-duty transfer encoding B(x
1, x
2..., x
m) leave the destination end of communication in, then with the characteristic information TZXX under the same non-characteristic information FTXX and corresponding light-duty transfer encoding B(x
1, x
2..., x
m) be transferred to destination end from the source end of communicating by letter together.
Putting in order of the light-duty transmission data of the real-time electric physical quantity of magnanimity single-phase alternating current is first voltage after-current; The order of three-phase alternating current is A phase voltage, B phase voltage, C phase voltage, residual voltage, A phase current, B phase current, C phase current, zero-sequence current.
The frame format of the light-duty transmission data of the real-time electric physical quantity of magnanimity is as shown in table 2.
The frame format of the light-duty transmission data of the real-time electric physical quantity of table 2 magnanimity
| Frame head | The control coding | Light-duty transmission data | Postamble |
The control coding is made up of control word and coding in the table 2, and control word is represented light-duty transmission sign and communication mode, the definition of coded representation common information.Control is encoded with 2 byte representations, and the 1st byte is the light-duty transmission of 01010001(Q-), the 2nd byte is.
Frame head defines with the different agreement that postamble is chosen according to different application demands.
4, step 4 is the light-duty data transmission of the real-time electric physical quantity of magnanimity and classification storage 4:
Earlier with different non-characteristic information FTXX and light-duty transfer encoding B(x
1, x
2..., x
m) leave the destination end of communication in, then with the characteristic information TZXX under the same non-characteristic information FTXX and corresponding light-duty transfer encoding B(x
1, x
2..., x
m) be transferred to destination end from the source end of communicating by letter together.Be transferred to characteristic information TZXX and corresponding light-duty transfer encoding B(x under the same non-characteristic information FTXX of destination end from the source end of communication
1, x
2..., x
m), by the light-duty transfer encoding B(x under the same non-characteristic information FTXX
1, x
2..., x
m) the classification storage.
5, the real-time electric physical quantity data reduction 5 of the light-duty transmission magnanimity of step 5:
When needs use the real-time electric physical quantity data of magnanimity, by markers T from by light-duty transfer encoding B(x
1, x
2..., x
m) extract light-duty transmission data in the classification storage list, and the rule that adopts non-characteristic information FTXX and characteristic information TZXX combination to be reduced into perfect information is carried out the real-time electric physical quantity data reduction of light-duty transmission magnanimity.
Two, device.
1, overall.
As Fig. 2, this device comprises perfect information data acquisition and characteristic information extraction unit 6, the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity and light-duty transmission control unit 7, the light-duty data transmission of the real-time electric physical quantity of magnanimity and classification storage unit 8, the real-time electric physical quantity data reduction unit 9 of light-duty transmission magnanimity.
It connects and interactive relation is:
The perfect information data acquisition is connected with the input of light-duty transmission control unit (7) with the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity with the output of characteristic information extraction unit (6), the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity is connected with the input of the light-duty data transmission of the real-time electric physical quantity of magnanimity with classification storage unit (8) with light-duty transmission control unit (7) output, and the light-duty data transmission of the real-time electric physical quantity of magnanimity is connected with the input of the real-time electric physical quantity data reduction unit of light-duty transmission magnanimity (9) with classification storage unit (8) output.
2, functional block.
As shown in Figure 3, perfect information data acquisition and characteristic information extraction unit 6 are made up of the synchronous high-resolution data collection of real time high-speed multichannel and access unit 61, Event triggered unit 62, high-performance microprocessor 63 and application software functional module A, carry out the synchronous high-resolution data collection of real time high-speed multichannel earlier, carrying out data by the sampled data of application software functional module A then filters, remove interfere information, carry out characteristic information again and extract, thereby realize perfect information data acquisition and characteristic information abstraction function.
The synchronous high-resolution data collection of high-speed, multi-path and access unit 61 are not less than 8 tunnel AC sampling autonomous channels, and every road adopts the GPS synchronizing signal to trigger the sampling maintenance; Sample frequency is not less than 1Mbit/s; The AD conversion is not less than 16; Data access adopts the high-capacity and high-speed flash memory, adopts data buffering access control and loop-around data to deposit mechanism.
Event triggered unit 62 is made up of electronic circuit, the threshold values information of detecting sensor, but produce a trigger action high-performance microprocessor 63 when sensor information is out-of-limit and from the synchronous high-resolution data collection of high-speed, multi-path and access unit 61, read data, and start application software functional module A.
High-performance microprocessor 63 is not less than 32, and dominant frequency is not less than 100MIPS.
Application software functional module A is made up of functional modules such as data acquisition unit A1, data filtering units A2, electric Physical Quantity Calculation unit A3, characteristic information extraction unit A4 and data communication units A5.
Characteristic information abstraction function modules A 4,2 characteristic information extracts with general character information separated method and carries out algorithm design and programming realization set by step.
The light-duty transfer encoding of the real-time electric physical quantity data of magnanimity and light-duty transmission control unit 7 light-duty transfer encoding and the light-duty transmission control strategy of the real-time electric physical quantity data of 3 described magnanimity set by step carry out light-duty transfer encoding and light-duty transmission control, the different agreement that the frame format of its data is chosen according to different application demands defines, but inserts light-duty transmission control coding (01,010,001 0000 x of 2 bytes between the frame head section of selected agreement and the data segment
1x
2x
3x
4), as shown in table 1.
The light-duty data transmission of the real-time electric physical quantity of magnanimity is made up of communication computer and data reduction application software functional module with classification storage unit 8 and the real-time electric physical quantity data reduction unit 9 of magnanimity.The real-time electric physical quantity of magnanimity arrives destination by communication computer with the light-duty data transmission of source end, and the classification storage; When the real-time electric physical quantity of magnanimity need be employed, by data reduction application software functional module, the real-time electric physical quantity data method of reducing of 5 magnanimity carried out the real-time electric physical quantity data reduction of magnanimity set by step.
Principle of work is:
(1) perfect information data acquisition and characteristic information extraction unit 6 are used for high-speed synchronous high-accuracy data acquisition and the characteristic information extraction of the real-time electric physical quantity data of magnanimity.
(2) the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity is controlled with the transmission that separates light-duty transfer encoding and light-duty data that light-duty transmission control unit 7 is used for the real-time electric physical quantity data characteristics information of magnanimity and public information.
(3) the light-duty data transmission of the real-time electric physical quantity of magnanimity is used for transmission and the light-duty data of the classification storage real-time electric physical quantity of magnanimity with classification storage unit 8.
(4) the real-time electric physical quantity data reduction unit 9 of light-duty transmission magnanimity is used for transmission and the light-duty data of the classification storage real-time electric physical quantity of magnanimity are reduced.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Though the present invention discloses as above with preferred embodiment, yet is not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention according to any simple modification, equivalent variations and the modification that technical spirit of the present invention is done above embodiment, all still belongs in the scope of technical solution of the present invention protection.
3, example.
As shown in Figure 4, the light-duty transfer encoding of perfect information data acquisition and characteristic information extraction unit 6 and the real-time electric physical quantity data of magnanimity and light-duty transmission control unit 7 are integrated into data acquisition and light-duty transmission control intelligent apparatus; The light-duty data transmission of the real-time electric physical quantity of magnanimity is integrated into light-duty data classification storage and data reduction intelligent apparatus with classification storage unit 8 and the real-time electric physical quantity data reduction unit 9 of light-duty transmission magnanimity.Data acquisition and light-duty transmission control intelligent apparatus at first the voltage and current of the I/O of observing and controlling object is carried out synchronous high-speed high precision real-time data acquisition and the filter interference wave is handled, carrying out characteristic information then extracts, carry out the control of the light-duty transfer encoding of data and light-duty host-host protocol again, carry out light-duty data transmission by communication network or communication channel.After light-duty data classification storage and data reduction intelligent apparatus obtain light-duty transmission data from communication network or communication channel, and the classification storage; When the real-time electric physical quantity of magnanimity need be employed, by data reduction application software functional module, with the real-time electric physical quantity data reduction of magnanimity.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (10)
1. the light-duty transmission method of the real-time electric physical quantity of magnanimity is characterized in that, comprises the following steps:
Step 1, the data acquisition and processing (DAP) of the real-time electric physical quantity perfect information of magnanimity;
Step 2 is carried out information extraction at the perfect information data characteristics of step 1 collection and is separated with non-characteristic information;
Step 3, the perfect information data after separating at step 2 are carried out light-duty transfer encoding and the light-duty transmission control of the real-time electric physical quantity data of magnanimity;
Step 4, the real-time electric physical quantity data of magnanimity after step 3 encoded are carried out light-duty data transmission and classification storage;
Step 5 is carried out the data reduction with the real-time electric physical quantity data of magnanimity of the storage of having classified in the step 4.
2. the light-duty transmission method of the real-time electric physical quantity of a kind of magnanimity according to claim 1, it is characterized in that, in the described step 1: the data acquisition and processing (DAP) of the real-time electric physical quantity perfect information of magnanimity is to carry out at the electric physical quantity of observing and controlling object, that is: the voltage and current of the input and output of observing and controlling object, carry out perfect information data acquisition in real time synchronously, perfect information comprises transient state component, steady-state component and harmonic component, and the mark markers; Treatment step namely filters the back classification to undesired signal and preserves.
3. the light-duty transmission method of the real-time electric physical quantity of a kind of magnanimity according to claim 1 is characterized in that, in the described step 2, characteristic information is the information of ins and outs in the reflection perfect information; Excavate and data analysis by synchronously real-time perfect information data are carried out intelligent data, perfect information is decomposed into characteristic information and non-characteristic information, characteristic information is come out from the real-time electric physical quantity extracting data of magnanimity; The information of perfect information of can reducing behind the characteristic information extraction is non-characteristic information; Represent with formula one:
S (s
1, s
2..., s
n, t)=TZXX (z
1, z
2..., z
N1, t) //FTXX (x
1, x
2..., x
N2, t) formula one;
Wherein, S represents perfect information, s represents the variable of perfect information S, and n represents the variable number of perfect information S, and // representation feature information and the combination of non-characteristic information are reduced into perfect information, TZXX and FTXX be representation feature information and non-characteristic information respectively, t represents data acquisition constantly, the variable of z representation feature information TZXX, and x represents the variable of non-characteristic information FTXX, the variable number of n1 and n2 difference representation feature information TZXX and non-characteristic information FTXX, n〉n1+n2.
4. the light-duty transmission method of the real-time electric physical quantity of a kind of magnanimity according to claim 3 is characterized in that, in the described step 3: adopt binary function that the real-time electric physical quantity data of the magnanimity of light-duty transmission are carried out light-duty transfer encoding B(x
1, x
2..., x
m), determine the corresponding relation of non-characteristic information FTXX and characteristic information TZXX, illustrate that non-characteristic information FTXX and characteristic information TZXX combination is reduced into the rule of perfect information;
Light-duty transmission control law is earlier with different non-characteristic information FTXX and light-duty transfer encoding B(x
1, x
2..., x
m) leave the destination end of communication in, then with the characteristic information TZXX under the same non-characteristic information FTXX and corresponding light-duty transfer encoding B(x
1, x
2..., x
m) be transferred to destination end from the source end of communicating by letter together.
5. the light-duty transmission method of the real-time electric physical quantity of a kind of magnanimity according to claim 4, it is characterized in that, in the described step 4, concrete grammar is that the source end from communication is transferred to characteristic information TZXX and the corresponding light-duty transfer encoding B(x under the same non-characteristic information FTXX of destination end
1, x
2..., x
m), by the light-duty transfer encoding B(x under the same non-characteristic information FTXX
1, x
2..., x
m) the classification storage.
6. the light-duty transmission method of the real-time electric physical quantity of a kind of magnanimity according to claim 4 is characterized in that, in the described step 5: when needs use the real-time electric physical quantity data of magnanimity, by markers T from by light-duty transfer encoding B(x
1, x
2..., x
m) extract light-duty transmission data in the classification storage list, and the rule that adopts non-characteristic information FTXX and characteristic information TZXX combination to be reduced into perfect information is carried out the real-time electric physical quantity data reduction of light-duty transmission magnanimity.
7. light-duty transmitting device of the real-time electric physical quantity of magnanimity, it is characterized in that, comprise perfect information data acquisition and characteristic information extraction unit (6), the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity and light-duty transmission control unit (7), the light-duty data transmission of the real-time electric physical quantity of magnanimity and classification storage unit (8), the real-time electric physical quantity data reduction unit of light-duty transmission magnanimity (9); Wherein, the perfect information data acquisition is connected with the input of light-duty transmission control unit (7) with the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity with the output of characteristic information extraction unit (6), the light-duty transfer encoding of the real-time electric physical quantity data of magnanimity is connected with the input of the light-duty data transmission of the real-time electric physical quantity of magnanimity with classification storage unit (8) with light-duty transmission control unit (7) output, and the light-duty data transmission of the real-time electric physical quantity of magnanimity is connected with the input of the real-time electric physical quantity data reduction unit of light-duty transmission magnanimity (9) with classification storage unit (8) output.
8. the light-duty transmitting device of the real-time electric physical quantity of a kind of magnanimity according to claim 7, it is characterized in that, described perfect information data acquisition and characteristic information extraction unit (6) comprise the synchronous high-resolution data collection of real time high-speed multichannel and access unit (61), high-performance microprocessor (62) and application software functional module (A), carry out the synchronous high-resolution data collection of real time high-speed multichannel earlier, by application software functional module (A) sampled data being carried out data then filters, remove interfere information, carry out characteristic information again and extract;
The synchronous high-resolution data collection of described high-speed, multi-path and access unit (61) employing are not less than 8 tunnel AC sampling autonomous channel, and every road adopts the GPS synchronizing signal to trigger the sampling maintenance; Sample frequency is not less than 1Mbit/s; The AD conversion is not less than 14;
Described high-performance microprocessor (62) is not less than 32, and dominant frequency is not less than 100MIPS;
Described application software functional module (A) comprises data acquisition unit (A1), data filtering units (A2), electric Physical Quantity Calculation unit (A3), characteristic information extraction unit (A4) and data communication units (A5).
9. the light-duty transmitting device of the real-time electric physical quantity of a kind of magnanimity according to claim 7, it is characterized in that the light-duty transfer encoding of the real-time electric physical quantity data of described magnanimity and light-duty transmission control unit (7) adopt binary function that the real-time electric physical quantity data of the magnanimity of light-duty transmission are carried out light-duty transfer encoding B(x
1, x
2..., x
m), determine the corresponding relation of non-characteristic information FTXX and characteristic information TZXX, illustrate that non-characteristic information FTXX and characteristic information TZXX combination is reduced into the rule of perfect information, the different agreement that the frame format of its data is chosen according to different application demands defines, but inserts light-duty transmission control coding (0000 x of 1 byte between the frame head section of selected agreement and the data segment
1x
2x
3x
4).
10. the light-duty transmitting device of the real-time electric physical quantity of a kind of magnanimity according to claim 7 is characterized in that, the light-duty data transmission of the real-time electric physical quantity of described magnanimity comprises communication computer with classification storage unit (8); The real-time electric physical quantity data reduction unit of described magnanimity (9) comprises data reduction application software functional module; The real-time electric physical quantity of magnanimity arrives destination by communication computer with the light-duty data transmission of source end, and the classification storage; When the real-time electric physical quantity of magnanimity need be employed, carry out the real-time electric physical quantity data reduction of magnanimity by data reduction application software functional module.
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