CN105446927A - Generator set historical record based serial port communication method - Google Patents
Generator set historical record based serial port communication method Download PDFInfo
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- CN105446927A CN105446927A CN201510782405.XA CN201510782405A CN105446927A CN 105446927 A CN105446927 A CN 105446927A CN 201510782405 A CN201510782405 A CN 201510782405A CN 105446927 A CN105446927 A CN 105446927A
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- 238000004891 communication Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000013499 data model Methods 0.000 claims abstract description 9
- 230000006870 function Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000013500 data storage Methods 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Alarm Systems (AREA)
Abstract
The present invention provides a generator set historical record based serial port communication method. The method comprises the following steps: step 1: establishing a data model of historical record content, wherein the data model comprises a record type, a record number, a record value, a record high alarm limit value, a record low alarm limit value, a record date, and record time; assigning an address to each piece of data and sorting, and assigning memory space to each piece of data; step 2: establishing a historical record communication data packet, wherein the historical record communication data packet comprises historical record reading and historical record clearing; historical record reading comprises sending and receiving, and historical record clearing comprises sending and receiving; and step 3: implementing communication, wherein a generator set controller reads one or more historical records from the communication data packet in step 2.
Description
Technical field
The present invention relates to a kind of serial port communication method, specifically, relate to a kind of serial port communication method based on genset historical record.
Background technology
What serial communication was commonly used based on hardware circuit design has RS232, RS485, RS422 tri-kinds, selects different serial communication modes according to different demands.Based on Software for Design the most frequently used, the most general be exactly Modbus serial communication protocol.Due to the place that genset communications industry has it common and special, common monitor data uses Modbus serial communication protocol.And for genset historical record, its data volume complexity is various, doing in the process communicated, unavoidably needing on this, spend a large amount of time energy to go to arrange process with general communication means, but also easily make mistakes.
In order to solve above Problems existing, people are seeking a kind of desirable technical solution always.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of working specification is provided, flexibly, is easy to the serial port communication method based on genset historical record realized.
To achieve these goals, the technical solution adopted in the present invention is: a kind of serial port communication method based on genset historical record, and the method comprises the following steps:
Step 1: the data model setting up historical record content
Described data model comprises record type, record label, record numerical value, record high alarm setting numerical value, record low alarm limit numerical value, record date and writing time; To sort, to each data storage allocation space to each data allocation address;
Step 2: set up historical record communication data packet
Described historical record communication data packet comprises to be read historical record and removes historical record:
If function code 1CH is the function code reading historical record, 1DH is the function code removing historical record; Note FF00H is for removing historical record, and 00FFH is for removing historical record success;
Read historical record comprise transmission and receive, wherein, the transmission data packet format reading historical record is, the module's address arranged in turn, function code 1CH, recording address, record number, check code; The reception data packet format reading historical record is, the module's address arranged in turn, function code 1CH, record number, record content, check code;
Remove historical record comprise transmission and receive, wherein, the transmission data packet format removing historical record is, the module's address arranged in turn, function code 1DH, FF00H, FF00H, check code; The reception data packet format removing historical record is, the module's address arranged in turn, function code 1DH, 00FFH, 00FFH, check code;
Step 3: communication realizes
Generator set controller reads one or more historical record from the communication data packet of step 2.
Based on above-mentioned, described record type comprises stopping alarm, tripping alarm and tripping grinder and reports to the police; Described record label comprises the index of set number of event title, described record date comprise record the time, record month and record day, comprise described writing time record hour, record minute, record second;
Based on above-mentioned, the address sort mode of each data is, 1 record type, 2 record labels, 3 record numerical value, 4 record high alarm setting numerical value, 5 record low alarm limit numerical value, 6 record dates, 7 writing times.
Based on above-mentioned, the memory headroom that each data are distributed is, record type accounts for a byte, record label accounts for two bytes, record numerical value accounts for two bytes, and record high alarm setting numerical value accounts for two bytes, and record low alarm limit numerical value accounts for two bytes, record date accounts for three bytes, accounts for three bytes writing time.
Based on above-mentioned, historical record is preserved in generator set controller circulation, when historical record exceedes in limited time, covers Article 1 record.
Hinge structure of the present invention has outstanding substantive distinguishing features and marked improvement, specifically, the present invention by building historical record data model and communication data packets, make the method working specification, flexibly, simple.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Based on a serial port communication method for genset historical record, the method comprises the following steps:
Step 1: the data model setting up historical record content
Described data model comprises record type, record label, record numerical value, record high alarm setting numerical value, record low alarm limit numerical value, record date and writing time; To sort, to each data storage allocation space to each data allocation address.
Wherein, described record type comprises the warning of stopping alarm, tripping alarm and tripping grinder; Described record label comprises the index of set number of event title, described record date comprise record the time, record month and record day, comprise described writing time record hour, record minute, record second;
The address sort mode of each data is, 1 record type, 2 record labels, 3 record numerical value, 4 record high alarm setting numerical value, 5 record low alarm limit numerical value, 6 record dates, 7 writing times.
The memory headroom that each data are distributed is that record type accounts for a byte, and record label accounts for two bytes, record numerical value accounts for two bytes, and record high alarm setting numerical value accounts for two bytes, and record low alarm limit numerical value accounts for two bytes, record date accounts for three bytes, accounts for three bytes writing time.
Step 2: set up historical record communication data packet
Described historical record communication data packet comprises to be read historical record and removes historical record:
If function code 1CH is the function code reading historical record, 1DH is the function code removing historical record; Note FF00H is for removing historical record, and 00FFH is for removing historical record success;
Read historical record comprise transmission and receive, wherein, the transmission data packet format reading historical record is, the module's address arranged in turn, function code 1CH, recording address, record number, check code; The reception data packet format reading historical record is, the module's address arranged in turn, function code 1CH, record number, record content, check code;
Remove historical record comprise transmission and receive, wherein, the transmission data packet format removing historical record is, the module's address arranged in turn, function code 1DH, FF00H, FF00H, check code; The reception data packet format removing historical record is, the module's address arranged in turn, function code 1DH, 00FFH, 00FFH, check code;
Step 3: communication realizes
Generator set controller reads one or more historical record from the communication data packet of step 2.
Historical record is preserved in generator set controller circulation, when historical record exceedes in limited time, covers Article 1 record.Such as: historical record preserves at most 1000, when historical record is more than 1000, cover Article 1 record, circulate according to this, here record sum, these two parameters of state-of-the-art record label are coordinated again, here which bar of the state-of-the-art record label address space that to be exactly a up-to-date historical record distribute at historical record sum, such as when covering the 80th article of record, the value of state-of-the-art record label is 80, record sum or 1000, so the 81st article is the oldest historical record, records just more clear when generator set controller shows this.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (4)
1. based on a serial port communication method for genset historical record, it is characterized in that: the method comprises the following steps:
Step 1: the data model setting up historical record content
Described data model comprises record type, record label, record numerical value, record high alarm setting numerical value, record low alarm limit numerical value, record date and writing time; To sort, to each data storage allocation space to each data allocation address;
Step 2: set up historical record communication data packet
Described historical record communication data packet comprises to be read historical record and removes historical record:
If function code 1CH is the function code reading historical record, 1DH is the function code removing historical record; Note FF00H is for removing historical record, and 00FFH is for removing historical record success;
Read historical record comprise transmission and receive, wherein, the transmission data packet format reading historical record is, the module's address arranged in turn, function code 1CH, recording address, record number, check code; The reception data packet format reading historical record is, the module's address arranged in turn, function code 1CH, record number, record content, check code;
Remove historical record comprise transmission and receive, wherein, the transmission data packet format removing historical record is, the module's address arranged in turn, function code 1DH, FF00H, FF00H, check code; The reception data packet format removing historical record is, the module's address arranged in turn, function code 1DH, 00FFH, 00FFH, check code;
Step 3: communication realizes
Generator set controller reads one or more historical record from the communication data packet of step 2.
2. the serial port communication method based on genset historical record according to claim 1, is characterized in that: described record type comprises stopping alarm, tripping alarm and tripping grinder and reports to the police; Described record label comprises the index of set number of event title, described record date comprise record the time, record month and record day, comprise described writing time record hour, record minute, record second;
Serial port communication method based on genset historical record according to claim 1, is characterized in that: the address sort mode of each data is, 1 record type, 2 record labels, 3 record numerical value, 4 record high alarm setting numerical value, 5 record low alarm limit numerical value, 6 record dates, 7 writing times.
3. the serial port communication method based on genset historical record according to claim 1, it is characterized in that: the memory headroom that each data are distributed is, record type accounts for a byte, record label accounts for two bytes, record numerical value accounts for two bytes, and record high alarm setting numerical value accounts for two bytes, and record low alarm limit numerical value accounts for two bytes, record date accounts for three bytes, accounts for three bytes writing time.
4. the serial port communication method based on genset historical record according to claim 1, is characterized in that: historical record is preserved in generator set controller circulation, when historical record exceedes in limited time, covers Article 1 record.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782405.XA CN105446927B (en) | 2015-11-16 | 2015-11-16 | Serial port communication method based on generating set historical record |
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| CN201510782405.XA CN105446927B (en) | 2015-11-16 | 2015-11-16 | Serial port communication method based on generating set historical record |
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| CN105446927A true CN105446927A (en) | 2016-03-30 |
| CN105446927B CN105446927B (en) | 2018-03-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903737A (en) * | 1996-03-06 | 1999-05-11 | Lg Electronics Inc. | Apparatus and method for serial data communication utilizing general microcomputer |
| CN202713370U (en) * | 2012-06-25 | 2013-01-30 | 浙江运达风电股份有限公司 | Wind turbine generator system dual serial communication device based on WP3X00 system |
| CN203324451U (en) * | 2013-07-04 | 2013-12-04 | 中能电力科技开发有限公司 | Serial port communication-based wind turbine generator operation data acquisition device |
-
2015
- 2015-11-16 CN CN201510782405.XA patent/CN105446927B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903737A (en) * | 1996-03-06 | 1999-05-11 | Lg Electronics Inc. | Apparatus and method for serial data communication utilizing general microcomputer |
| CN202713370U (en) * | 2012-06-25 | 2013-01-30 | 浙江运达风电股份有限公司 | Wind turbine generator system dual serial communication device based on WP3X00 system |
| CN203324451U (en) * | 2013-07-04 | 2013-12-04 | 中能电力科技开发有限公司 | Serial port communication-based wind turbine generator operation data acquisition device |
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| CN105446927B (en) | 2018-03-13 |
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