CN103164359B - A kind of pipeline communication method and apparatus - Google Patents
A kind of pipeline communication method and apparatus Download PDFInfo
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- CN103164359B CN103164359B CN201310034616.6A CN201310034616A CN103164359B CN 103164359 B CN103164359 B CN 103164359B CN 201310034616 A CN201310034616 A CN 201310034616A CN 103164359 B CN103164359 B CN 103164359B
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Abstract
The embodiment of the invention discloses a kind of pipeline communication method and apparatus, including, set up data space, the data storage in data space, imparting is stored in the corresponding characteristic parameter of data in data space, corresponding data are read from data space according to characteristic parameter, by the present invention in that with a public space and being input into, output channel is connected, it is managed collectively and stores the data volume of input channel input, the output channel of the process in any system can read required data volume from the public space, so as to greatly reduce pipeline communication system scale and complexity, improve the reliability of system.
Description
Technical field
The present invention relates to pipeline communication field, more particularly to a kind of pipeline communication method and apparatus.
Background technology
Data acquisition transmission instrument is primarily referred to as gathering, storing the data of all kinds measuring instrument and have upwards
The position industrial computer of machine transmission data function, embedded computer or Programmable Logic Controller etc..
Linux system is used existing data acquisition transmission instrument more, processing, be connected collection, calculate and access each module
In data when, the communication mode commonly used between process is mainly the pipeline communication mode of Linux, and the pipeline communication mode refers to
A kind of semiduplex communication mode between two processes in linux system, data can only one-way flow.When specifically used, work as number
Data type according to source is different, when application scenarios are not equal, is required for targetedly pre-setting corresponding process pipeline.This
Plant communication mode although simple and clear, but, with the development of science and technology, the input mode of data volume is more and more, data source
Data type is also varied, so, thus cause whole pipeline communication system to become increasingly complex, reliability is reduced, Er Qieyou
It is when the calculating for needing to realize between input variable or have input variable calculate obtain output variable when, pipeline enclosure interleaving access
Whole pipeline communication system is caused to become excessively complicated with the control of sequential, it is difficult to safeguard.
The content of the invention
Embodiments provide a kind of pipeline communication method and apparatus, solve gathered using pipeline communication mode,
Calculate and access the system complex produced during the data in each module, the low technical problem of reliability.
The embodiment of the invention discloses following technical scheme：
A kind of pipeline communication method, including step：
Set up data space；
The data storage in data space；
Imparting is stored in the corresponding characteristic parameter of data in data space；
Corresponding data are read from data space according to characteristic parameter.
Preferably, the characteristic parameter is specially the name information of the address information and/or data of data.
Preferably, also include before data storage in data space：
The data are pre-processed according to default rule, the pretreatment is specially and for the data to carry out correspondence
Form conversion and/or calculating process is carried out using corresponding computing formula to the data；
Accordingly, in data space store format transformation after data and/or calculating process after data.
Preferably, the data storage in data space includes：
Stored according to the classification of type of data.
Preferably, the data storage in data space includes：
Stored according to the whether writeable classification of data.
Preferably, the data storage in data space includes：
The data type of preservation data, data cell, data length, data name, data value, data default value, statistics
Type and display mark.
Preferably, also include：
Recorded using configuration file and updated data implication corresponding to the data for being stored in memory space, data length,
Data initial value, data type, data unit, data name and computing formula.
A kind of pipeline communication device, including：
Memory space unit is set up, for setting up data space；
Memory cell, for the data storage in data space；
Characteristic parameter unit, is stored in the corresponding characteristic parameter of data in data space for giving；
Reading unit, for corresponding data are read from data space according to characteristic parameter.
Preferably, also include：
Pretreatment unit, for being pre-processed to the data according to default rule, the pretreatment specially will
The data carry out corresponding form conversion and/or carry out calculating process using corresponding computing formula to the data；
Accordingly, at the data and/or calculating after memory cell is additionally operable to format transformation is stored in data space
Data after reason.
Preferably, also include：
Configuration file unit, for being recorded using configuration file and updating the number corresponding to the data for being stored in memory space
According to implication, data length, data initial value, data type, data unit, data name and computing formula.
As can be seen from the above-described embodiment, by the present invention in that being connected with input, output channel with a public space, unite
One data volume for managing and storing input channel input, the output channel of the process in any system can be read from the public space
Required data volume, so as to greatly reduce pipeline communication system scale and complexity, improves the reliability of system.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram of pipeline communication method of the invention；
Fig. 2 is the system construction drawing of the present invention；
Fig. 3 is that the system module of the present invention calls signaling diagram；
Fig. 4 is a kind of another method flow diagram of pipeline communication method of the invention；
Fig. 5 is an a kind of structure drawing of device of pipeline communication device of the invention.
Specific embodiment
Embodiments provide a kind of pipeline communication method and apparatus.The data unification of collection is stored in and is built in advance
In vertical data space, and the data pre-processed by needs are carried out with corresponding form conversion and/or by calculating public affairs
Formula is calculated, and provides unified interface for each output unit.
It is connected with input, output channel by using a public space, is managed collectively and stores input channel input
Data volume, the output channel of the process in any system can read required data volume from the public space, so as to substantially reduce
Pipeline communication system scale and complexity, improve the reliability of system.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present invention
Embodiment is described in detail.
Embodiment one
Fig. 1 is referred to, which is a kind of method flow diagram of pipeline communication method of the invention, the method is comprised the following steps：
S101：Set up data space；
Explanation is needed exist for, disposably distributes certain memory space in internal memory for setting up data space,
Certainly, it is that, in internal memory, the data space can also be set up in external memory unit or other types not limit
Memory cell in, the present invention this is not defined.
Preferably, also include before data storage in data space：
The data are pre-processed according to default rule, the pretreatment is specially and for the data to carry out correspondence
Form conversion and/or calculating process is carried out using corresponding computing formula to the data；
Accordingly, in data space store format transformation after data and/or calculating process after data.
Here Fig. 2 is referred to, which is the system construction drawing of the present invention.It should be noted that pass through outer harvesting portion or
The data that person's outside input module is obtained, some have specific communications protocol, need to be converted into specific data form ability
Exported or could be recognized by data outputting module, and some collected data, it is impossible to data output is directly used in,
The data needs of these types are counted according to its corresponding computing formula together with other data or parameter or individually
Calculate, the data for calculating are only effective output data.According to the situation that the above is likely to occur, it is necessary to adopted according to data
The current job requirement of collection transmission instrument, the rule between the data for presetting collection and the output data for intentionally getting, it is determined that
Which data directly can be exported, and which data needs the conversion into row format, and which data needs further to be calculated
Afterwards, the result of calculating is exported, and in the data space that these pretreated data Cun Chudao are set up.
S102：The data storage in data space；
Preferably, stored according to the classification of type of data.
Preferably, stored according to the whether writeable classification of data.
For step S102, a preferred embodiment can be lifted according to actual scene here and be described in detail：
The data in data storage space will be stored in and classified according to whether data type and data are writeable, respectively
Be divided into readable writeable analog data, readable not writeable analog data, readable writeable switching value data and it is readable not
Writeable switching value data.
According to above-mentioned mode classification, the data space of foundation is divided into into four regions, respectively holding register
Region, input register region, input status register region and coil state register area, this four regions are as required
Each receive switching value, analog quantity, input quantity and the output quantity of corresponding types：
Holding register region is used for storing 8bit, 16bit, 32bit and/or 64bit type simulation amount data, accesses journey
The read-write region of sequence；
Input register region is used for storing 8bit, 16bit, 32bit and/or 64bit type simulation amount data, accesses journey
The readable not writeable region of sequence；
Coil state register area is used for the switching value data for storing 1bit types, accesses the read-write region of program；
Input status register region is used for the switching value data for storing 1bit types, accesses the readable not writeable area of program
Domain.
Preferably, the data type of preservation data, data cell, data length, data name, data value, data acquiescence
Value, measurement type and display mark.
Need explanation, the data of the same type for being preserved of regional, in addition to these above-mentioned characteristic quantities, to depositing
The size of storage also has certain regulation, such as, input register region is typically without exception using the memory headroom of 4 byte-sizeds depositing
Data are put, depending on the storage size of other each data of region is according to the regulation in the region.Certainly, the present invention is not to each
The size of the memory space of each data in individual region is defined.
The process of illustratively data storage is also needed to, is still illustrated, refer to Fig. 3, which is the present invention's
System module calls signaling diagram, and when analog data is stored, holding register region and input register region are all to use 4
The memory space of byte storing analog data, and in the analog data of transmission collection, generally using the band of 2 bytes
Width, so an analog quantity variable needs transmission 2 times, this has related to first transmit high 2 byte data, has still first transmitted low 2 word
The problem of joint number evidence.Because also not producing a unified standard on this problem at present, for compatible both types
Equipment, when data are stored, can select high/low position conversion processor to adapt to different situations.
S103：Imparting is stored in the corresponding characteristic parameter of data in data space；
Preferably, the characteristic parameter is specially the name information of the address information and/or data of data.
As can be seen that the data in the region of each data storage are endowed address information and name information, system is defeated
The name information for going out address information and/or data that module can pass through data accesses data.
S104：Corresponding data are read from data space according to characteristic parameter.
Data space provides unified output interface, so that other output modules in Modbus agreements and system enter
The access of row data.
Embodiment two
Fig. 4 is referred to, which is a kind of another method flow diagram of pipeline communication method of the invention.
S401：Data implication corresponding to the data for being stored in memory space, data are recorded and are updated using configuration file
Length, data initial value, data type, data unit, data name and computing formula.
Explanation is needed exist for, the configuration file is more like a kind of description of the data space to setting up, institute
State, it is possible to according to every secondary data
The table of the working condition of collection transmission instrument, is updated to the configuration file, this function that can customize at any time accordingly
Greatly improve the adaptability of whole data storage, calling system.
As can be seen from the above-described embodiment, by the present invention in that being connected with input, output channel with a public space, unite
One data volume for managing and storing input channel input, the output channel of the process in any system can be read from the public space
Required data volume, so as to greatly reduce pipeline communication system scale and complexity, improves the reliability of system.
Embodiment three
Fig. 5 is referred to, which is an a kind of structure drawing of device of pipeline communication device of the invention, including：
Memory space unit 501 is set up, for setting up data space；
Preferably, also include：
Pretreatment unit 502, for being pre-processed to the data according to default rule, the pretreatment is specially
The data are carried out into corresponding form conversion and/or calculating process is carried out using corresponding computing formula to the data；
Accordingly, the data and/or calculating after memory cell 503 is additionally operable to format transformation is stored in data space
Data after process.
Memory cell 503, for the data storage in data space；
Characteristic parameter unit 504, is stored in the corresponding characteristic parameter of data in data space for giving；
Reading unit 505, for corresponding data are read from data space according to characteristic parameter.
Preferably, also include：
Configuration file unit, for being recorded using configuration file and updating the number corresponding to the data for being stored in memory space
According to implication, data length, data initial value, data type, data unit, data name and computing formula.
As can be seen from the above-described embodiment, by the present invention in that being connected with input, output channel with a public space, unite
One data volume for managing and storing input channel input, the output channel of the process in any system can be read from the public space
Required data volume, so as to greatly reduce pipeline communication system scale and complexity, improves the reliability of system.
It should be noted that one of ordinary skill in the art will appreciate that whole or portion in realizing above-described embodiment method
Split flow, can be by computer program to instruct the hardware of correlation to complete, and described program can be stored in a computer
In read/write memory medium, the program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, it is described
Storage medium can be magnetic disc, CD, read-only memory (Read-Only Memory, ROM) or random access memory
(Random Access Memory, RAM) etc..
Above a kind of pipeline communication method and apparatus provided by the present invention is described in detail, it is used herein
Specific embodiment is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands
The method of the present invention and its core concept；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, in tool
Will change in body embodiment and range of application, in sum, this specification content is should not be construed as to the present invention
Restriction.
Claims (7)
1. a kind of pipeline communication method, is applied to data acquisition transmission instrument, and the processing system of the data acquisition transmission instrument is adopted
According to the pipeline communication mode communicated by one-way pipeline, it is characterised in that including step：
Data space is set up, the memory space is connected with input, output channel；
Data are pre-processed according to default rule, the pretreatment is specially and for the data to carry out corresponding form turn
Change and/or calculating process is carried out using corresponding computing formula to the data, the data are to be passed by the data acquisition
Defeated instrument collection or the data being input into；
The data after format transformation and/or the data after calculating process are stored in data space, the data are from institute
State input channel acquisition；
Imparting is stored in the corresponding characteristic parameter of data in data space, and the characteristic parameter is specially the address letter of data
The name information of breath and/or data；
Process in system from data space reads corresponding data according to characteristic parameter by corresponding output channel.
2. method according to claim 1, it is characterised in that the data storage in data space includes：
Stored according to the classification of type of data.
3. method according to claim 1, it is characterised in that the data storage in data space includes：
Stored according to the whether writeable classification of data.
4. method according to claim 1, it is characterised in that the data storage in data space includes：
The data type of preservation data, data cell, data length, data name, data value, data default value, measurement type
Indicate with showing.
5. method according to claim 1, it is characterised in that also include：
Data implication corresponding to the data for being stored in memory space, data length, data are recorded and are updated using configuration file
Initial value, data type, data unit, data name and computing formula.
6. a kind of pipeline communication device, is applied to data acquisition transmission instrument, and the processing system of the data acquisition transmission instrument is adopted
According to the pipeline communication mode communicated by one-way pipeline, it is characterised in that include：
Memory space unit is set up, for setting up data space, the memory space is connected with input, output channel；
Pretreatment unit, for being pre-processed to data according to default rule, the pretreatment is specially the data
Carry out corresponding form conversion and/or calculating process is carried out using corresponding computing formula to the data, the data are logical
Cross the data acquisition transmission instrument collection or the data being input into；
Memory cell, for the data after the data after format transformation and/or calculating process are stored in data space, institute
It is to obtain from the input channel to state data；
Characteristic parameter unit, is stored in the corresponding characteristic parameter of data in data space, the characteristic parameter for giving
The specially name information of the address information and/or data of data；
Reading unit, for from data space reading corresponding number according to characteristic parameter by corresponding output channel
According to.
7. device according to claim 6, it is characterised in that also include：
Configuration file unit, the data for being recorded and being updated corresponding to the data for being stored in memory space using configuration file contain
Justice, data length, data initial value, data type, data unit, data name and computing formula.
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| JP4054572B2 (en) * | 2001-12-17 | 2008-02-27 | キヤノン株式会社 | Application execution system |
| CN102508765A (en) * | 2011-11-17 | 2012-06-20 | 深圳市中兴移动通信有限公司 | Method for monitoring software log in real time by inter-process communication |
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|---|---|---|---|---|
| CN1289962A (en) * | 1999-09-23 | 2001-04-04 | 国际商业机器公司 | Establishment of multiple process spanned communication programme in multiple linear equation running environment |
| CN1859327A (en) * | 2006-02-09 | 2006-11-08 | 华为技术有限公司 | Method, device and system for transfer news |
| CN101127685A (en) * | 2007-09-20 | 2008-02-20 | 中兴通讯股份有限公司 | An inter-process communication device and inter-process communication method |
| CN101620723A (en) * | 2009-08-03 | 2010-01-06 | 东莞市三姆森光电科技有限公司 | Offline intelligent image information processing method and intelligent image information processing system |
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