CN104867520A - Intelligent data storage unit of exciting magnet apparatus based on ferroelectric random access memory and working method therefor - Google Patents
Intelligent data storage unit of exciting magnet apparatus based on ferroelectric random access memory and working method therefor Download PDFInfo
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Abstract
Disclosed is an intelligent data storage unit of exciting magnet apparatus based on ferroelectric random access memory, which comprises a microcontroller unit (MCU) module, a liquid crystal display module, a keyboard module, a clock module, a storage module I, a storage module II, a CAN communication module I, a CAN communication module II, an RS485 communication module, and an RS232 communication module. Data is exchanged with an exciting magnet adjustor, an intelligent power cabinet, an intelligent demagnetization cabinet and an intelligent terminal via the CAN communication module I and the CAN communication module II, a time label is generated by the clock module, and collected data and the corresponding time labels are stored in the storage module I and the storage module II. A man-machine interface is formed via the liquid crystal display module and the key module, communication with a power plant DSC system is implemented via the RS485 communication module, and communication with a debugging computer is implemented via the RS232 communication module. The present invention has the following beneficial effects: using ferroelectric memory which has large capacity, fast read/write speed, more readable/writable times, and longer data saving time when power-fail; having high network reliability; ensuring magnet exciting apparatus to complete functions of fault recording and switching value recall.
Description
Technical field
The present invention relates to electric system excitation control device of synchronous generator technical field of data storage, particularly based on excitation unit intelligent data repository unit and the method for work of ferroelectric memory.
Background technology
Traditional semiconductor memory can be divided into two classes-volatibility and non-volatile, the storer of volatibility comprises static memory SRAM and dynamic storage DRAM, SRAM and DRAM storer is easy to use, performance is good, all can lose preserved data when power down; Nonvolatile memory can't lose stored data when power down, but all main flow nonvolatile memories all stem from ROM (read-only memory) (ROM) technology, all storeies gone out by ROM technical research all have the feature of written information difficulty, and these technology include EPROM, EEPROM and Flash.These storeies not only writing speed are slow, and can only limited number of time erasable, and during write, power consumption is large simultaneously.The nonvolatile memory stored parameters such as existing excitation unit many employings EEPROM or FLASH, by the restriction of its capacity, read or write speed, read-write number of times, are difficult to the new demand meeting modern excitation system.
Modern excitation system requires to have failure wave-recording and switching value and the function such as to recollect, this just need jumbo can the storer preserved of power down, be used for storage failure time various switching value and analog quantity, to be used for malfunction coefficient and analysis afterwards.Traditional semiconductor memory can not meet actual needs, so research adopts the excitation unit intelligent data repository unit that a kind of new storer-ferroelectric memory (FRAM) is core to become a kind of demand.
Excitation unit of the present invention refers to a kind of distributed PC excitation unit based on CAN network, and excitation unit is divided into field regulator, intelligent power cabinet, intelligent demagnetization cabinet, Intelligent terminal, intelligent data repository unit.
Summary of the invention
Problem to be solved by this invention is to overcome the deficiencies in the prior art, provides the excitation unit intelligent data repository unit based on ferroelectric memory and method of work.
The present invention solves its technical matters and takes following technical scheme to realize:
Based on an excitation unit intelligent data repository unit for ferroelectric memory, comprise microcontroller module, LCD MODULE, Keysheet module, clock module, memory module I, memory module II, CAN communication module I, CAN communication module ii, RS485 communication module, RS232 communication module; Described CAN communication module I and CAN communication module ii and field regulator, intelligent power cabinet, intelligent demagnetization cabinet, Intelligent terminal form two CAN network communication, by CAN communication module I and CAN communication module ii and field regulator, intelligent power cabinet, intelligent demagnetization cabinet, Intelligent terminal interaction data, by clock module generation time label, the data come collection and corresponding time tag are stored into memory module I and memory module II; Man-machine interface is formed, by RS485 communication module and Power Plant DCS System communication, by RS232 communication module and debugging computer communication by LCD MODULE and Keysheet module.
Described memory module I adopts ferroelectric memory FM22L16 to be acp chip, be connected by standard industry parallel port with microcontroller, mutual exchange data, store the analog quantity information of microcontroller process, and the data of storage can be preserved 10 years when falling point.
Described memory module II adopts ferroelectric memory FM25L256 to be acp chip, be connected by spi bus with micro controller module, mutual exchange data, store the switching value information of microcontroller process, and the data of storage can be preserved 10 years when falling point.
Described clock module is connected by spi bus with microcontroller module, the time tag that microcontroller module acquires clock module produces, and together deposits corresponding memory module to analog data and switching value data.
Described LCD MODULE and Keysheet module, form man-machine interface, for showing the data of CAN communication module I and the collection of CAN communication module ii in real time, checking the data that memory module I and memory module II preserves, other modules being run to the setting of being correlated with.
Described RS485 communication module, adopts the MODBUS communications protocol of standard, with Power Plant DCS System communication, mutually exchanges data.
Described RS232 communication module, adopts the MODBUS communications protocol of standard, with debugging computer communication, and the data that computing machine can be stored by RS232 communication module inquiry memory module I and memory module II.
Based on the method for work of the excitation unit intelligent data repository unit of ferroelectric memory, it is characterized in that comprising the steps:
1) data of field regulator, intelligent power cabinet, intelligent demagnetization cabinet, Intelligent terminal are gathered by CAN communication module I and CAN communication module ii, data send microcontroller module to, and microcontroller module processes the data gathered;
2) by clock module, generation time label, time tag sends microcontroller module to, microcontroller module by time tag together with the data assemblies processed in step 1);
3) by the setting that LCD MODULE and Keysheet module are correlated with to storage unit, microcontroller module carries out storage data according to the requirement set;
4) memorized in analogue is to memory module I, and switching value is stored into memory module II;
5) by RS485 communication module, with Power Plant DCS System communication, mutual interaction data;
6) by RS232 communication module, with debugging computer communication, the data that computing machine can be stored by RS232 communication module inquiry memory module I and memory module II.
The present invention also comprises following software routines: CAN communication interruption subroutine: data acquisition; Tick interrupt subroutine: the collection of deadline label; Liquid crystal display and keyboard operation subroutine: complete data display and keyboard operation processing capacity; RS485 communicating interrupt subroutine: complete the communication with Power Plant DCS System; RS232 communicating interrupt subroutine: complete the communication with debugging computer.
Software flow of the present invention is as follows:
1) system power-on reset;
2) system initialization, each status register of initialization system and control register, initialization interrupt vector table;
3) system enters major cycle, waits to be interrupted, and major cycle mainly processes liquid crystal display and keyboard operation subroutine, as interrupt response then enters corresponding interruption subroutine, as interrupted without response, then continues to wait for.
4) interruption subroutine comprises CAN communication interruption subroutine, tick interrupt subroutine, RS485 communicating interrupt subroutine, RS232 communicating interrupt subroutine, interrupt by interrupt priority response, after interruption subroutine executes, auto-returned master routine, waits for that other interrupt.
The present invention compared with prior art has significant advantage and beneficial effect:
Instant invention overcomes the defect of prior art, adopt ferroelectric memory, its capacity is large, read or write speed is fast, read-write often, power down preserve data time long; Independently intelligent data repository unit application is adopted in distributed excitation unit, to adopt two CAN net transmission data, enhance the reliability of network; Effectively can ensure that excitation unit completes failure wave-recording and switching value recollects function.
Range of application: the present invention is mainly used in electric system excitation control device of synchronous generator technical field of data storage, provides the excitation unit intelligent data repository unit based on ferroelectric memory and method of work.
Effect: the present invention is applied to a kind of based in the distributed PC excitation unit of CAN network, adopt ferroelectric memory, memory capacity reaches 4M, read or write speed reaches 55ns, read-write number of times reaches 100 TFlops, power down is preserved data time and is reached 10 years, can be good at encouraging magnetic data storage and analysis, has realized excitation unit failure wave-recording and switching value recollects function.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the circuit structure diagram of CAN communication module I of the present invention;
Fig. 3 is the circuit structure diagram of memory module I of the present invention and microcontroller connected component;
Fig. 4 is the circuit structure diagram of memory module II of the present invention and microcontroller connected component;
Fig. 5 is the circuit structure diagram of communication module I of the present invention;
Fig. 6 is the circuit structure diagram of communication module II of the present invention;
Fig. 7 is the circuit structure diagram of clock module of the present invention;
Fig. 8 is the circuit structure diagram of LCD MODULE of the present invention and Keysheet module;
Fig. 9 is software flow of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to embodiment provided by the invention, structure, feature and effect thereof, be described in detail as follows.
The excitation unit intelligent data repository unit based on ferroelectric memory as shown in Figure 1, comprises microcontroller module, LCD MODULE, Keysheet module, clock module, memory module I, memory module II, CAN communication module I, CAN communication module ii, RS485 communication module, RS232 communication module, described CAN communication module I and CAN communication module ii and field regulator, intelligent power cabinet, intelligence demagnetization cabinet, Intelligent terminal (above-mentioned field regulator, intelligent power cabinet, intelligence demagnetization cabinet, Intelligent terminal is the prior art that those skilled in the art know, do not draw in the drawings) form two CAN network communication, by CAN communication module I and CAN communication module ii and field regulator, intelligent power cabinet, intelligence demagnetization cabinet, Intelligent terminal interaction data, by clock module generation time label, the data come collection and corresponding time tag are stored into memory module I and memory module II, man-machine interface is formed, by RS485 communication module and Power Plant DCS System communication, by RS232 communication module and debugging computer communication by LCD MODULE and Keysheet module.
As shown in Figure 2: described CAN communication module I, CAN communication module comprise optically coupled isolation circuit, CAN transmission circuit and relevant adapter circuit, the light isolation of CAN communication signal is realized, digital received and sent work; Wherein CAN transceiver SN65HVD1050DR (VP1050) chip of selecting Texas Instrument to produce, the input end of CAN communication module I, CAN communication module ii is connected to form two CAN net redundant network with the CAN1 communication port of Micro-processor MCV module and CAN2 communication port respectively, CAN communication module I, CAN communication module ii output terminal are connected with the CAN network of excitation unit, form the two CAN net communication network of redundant high-speed, and then ensure the reliability of communication.
As shown in Figure 3: described memory module I is made up of ferroelectric memory chip FM22L16, storer FM22L16 data bus and address bus respectively with Micro-processor MCV model calling, for interaction data, the sheet choosings of storer FM22L16 etc. control the control signal that pin receives Micro-processor MCV module, Micro-processor MCV module is read and write data to storer FM22L16 by data and address bus, storer FM22L16 is mainly used in storing analog quantity information, i.e. Fault Recorder Information.
As shown in Figure 4: described memory module II is made up of ferroelectric memory FM25L256, storer FM25L256 is connected by spi bus with Micro-processor MCV module, follows spi bus agreement, and for storage switch amount information, namely storage switch amount recollects information.
As shown in Figure 7: described clock module, form primarily of clock chip DS3234SN, clock chip DS3234SN is connected by spi bus with Micro-processor MCV module, to Micro-processor MCV module transmission time information.
As shown in Figure 8: described LCD MODULE and Keysheet module, form man-machine interface, for showing the data of CAN communication module I and the collection of CAN communication module ii in real time, checking the data that memory module I and memory module II preserves, other modules being run to the setting of being correlated with.
As shown in Figure 5: described RS485 communication module, be made up of optically coupled isolation circuit and 485 communication chip SN65184D and relevant adapter circuit, complete digital received and sent work, realize the data communication with Power Plant DCS System.
As shown in Figure 6: described RS232 communication module, be made up of optically coupled isolation circuit and 232 communication chip MAX232 and relevant adapter circuit, complete digital received and sent work, realize the data communication with debugging computer.
As shown in Figure 1: described microcontroller module, with the MC9S12 microcontroller of Freescale company of the U.S. for control core, by CAN communication module I and CAN communication module ii and field regulator, intelligent power cabinet, intelligence demagnetization cabinet, Intelligent terminal interaction data, by clock module generation time label, the data come collection and corresponding time tag are stored into memory module I and memory module II, man-machine interface is formed by LCD MODULE and Keysheet module, by RS485 communication module and Power Plant DCS System communication, by RS232 communication module and debugging computer communication.
Based on a method of work for the excitation unit intelligent data repository unit of ferroelectric memory, it is characterized in that comprising the steps:
1) data of field regulator, intelligent power cabinet, intelligent demagnetization cabinet, Intelligent terminal are gathered by CAN communication module I and CAN communication module ii, data send microcontroller module to, and microcontroller module processes the data gathered;
2) by clock module, generation time label, time tag sends microcontroller module to, microcontroller module by time tag together with the data assemblies processed in step 1);
3) by the setting that LCD MODULE and Keysheet module are correlated with to storage unit, microcontroller module carries out storage data according to the requirement set;
4) memorized in analogue is to memory module I, and switching value is stored into memory module II;
5) by RS485 communication module, with Power Plant DCS System communication, mutual interaction data;
6) by RS232 communication module, with debugging computer communication, the data that computing machine can be stored by RS232 communication module inquiry memory module I and memory module II.
Known in sum, the data that the smart storage devices in this example can realize distributed excitation unit store and data analysis.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (8)
1. based on the excitation unit intelligent data repository unit of ferroelectric memory, it is characterized in that: comprise microcontroller module, LCD MODULE, Keysheet module, clock module, memory module I, memory module II, CAN communication module I, CAN communication module ii, RS485 communication module, RS232 communication module; Described CAN communication module I and CAN communication module ii and field regulator, intelligent power cabinet, intelligent demagnetization cabinet, Intelligent terminal form two CAN network communication, by CAN communication module I and CAN communication module ii and field regulator, intelligent power cabinet, intelligent demagnetization cabinet, Intelligent terminal interaction data, by clock module generation time label, the data come collection and corresponding time tag are stored into memory module I and memory module II; Man-machine interface is formed, by RS485 communication module and Power Plant DCS System communication, by RS232 communication module and debugging computer communication by LCD MODULE and Keysheet module.
2. the excitation unit intelligent data repository unit based on ferroelectric memory according to claim 1, it is characterized in that: described memory module I adopts ferroelectric memory FM22L16 to be acp chip, be connected by standard industry parallel port with microcontroller, mutual exchange data, store the analog quantity information of microcontroller process.
3. the excitation unit intelligent data repository unit based on ferroelectric memory according to claim 1, it is characterized in that: described memory module II adopts ferroelectric memory FM25L256 to be acp chip, be connected by spi bus with micro controller module, mutual exchange data, store the switching value information of microcontroller process.
4. the excitation unit intelligent data repository unit based on ferroelectric memory according to claim 1, it is characterized in that: described clock module is connected by spi bus with microcontroller module, the time tag that microcontroller module acquires clock module produces, together deposits corresponding memory module to analog data and switching value data.
5. the excitation unit intelligent data repository unit based on ferroelectric memory according to claim 1, it is characterized in that: described LCD MODULE and Keysheet module, form man-machine interface, for showing the data of CAN communication module I and the collection of CAN communication module ii in real time, check the data that memory module I and memory module II preserves, other modules are run to the setting of being correlated with.
6. the excitation unit intelligent data repository unit based on ferroelectric memory according to claim 1, is characterized in that: described RS485 communication module, adopts the MODBUS communications protocol of standard, with Power Plant DCS System communication, mutually exchanges data.
7. the excitation unit intelligent data repository unit based on ferroelectric memory according to claim 1, it is characterized in that: described RS232 communication module, the MODBUS communications protocol of employing standard, with debugging computer communication, the data that computing machine can be stored by RS232 communication module inquiry memory module I and memory module II.
8., based on a method of work for the excitation unit intelligent data repository unit of ferroelectric memory, it is characterized in that comprising the steps:
Gathered the data of field regulator, intelligent power cabinet, intelligent demagnetization cabinet, Intelligent terminal by CAN communication module I and CAN communication module ii, data send microcontroller module to, and microcontroller module processes the data gathered;
By clock module, generation time label, time tag sends microcontroller module to, microcontroller module by time tag together with the data assemblies processed in step 1);
By the setting that LCD MODULE and Keysheet module are correlated with to storage unit, microcontroller module carries out storage data according to the requirement set;
Memorized in analogue is to memory module I, and switching value is stored into memory module II;
By RS485 communication module, with Power Plant DCS System communication, mutual interaction data;
By RS232 communication module, with debugging computer communication, the data that computing machine can be stored by RS232 communication module inquiry memory module I and memory module II.
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| CN105159621A (en) * | 2015-09-30 | 2015-12-16 | 天津中德职业技术学院 | Ferroelectric memory based intelligent data storage unit of excitation apparatus and working method |
| CN111668930A (en) * | 2020-06-04 | 2020-09-15 | 武汉汇博鸿通电气有限公司 | Power supply monitoring method and system based on CAN to 485 conversion |
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Patent Citations (4)
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| CN1751535A (en) * | 2002-12-19 | 2006-03-22 | 印度科学工业研究所 | An energy efficient data acquisition system and computer controlled energy monitoring system incorporating the same |
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Cited By (2)
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| CN105159621A (en) * | 2015-09-30 | 2015-12-16 | 天津中德职业技术学院 | Ferroelectric memory based intelligent data storage unit of excitation apparatus and working method |
| CN111668930A (en) * | 2020-06-04 | 2020-09-15 | 武汉汇博鸿通电气有限公司 | Power supply monitoring method and system based on CAN to 485 conversion |
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