CN100491710C - Multifunctional on-site control apparatus of diesel engine and control method thereof - Google Patents
Multifunctional on-site control apparatus of diesel engine and control method thereof Download PDFInfo
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- CN100491710C CN100491710C CNB2007100721626A CN200710072162A CN100491710C CN 100491710 C CN100491710 C CN 100491710C CN B2007100721626 A CNB2007100721626 A CN B2007100721626A CN 200710072162 A CN200710072162 A CN 200710072162A CN 100491710 C CN100491710 C CN 100491710C
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Abstract
The diesel engine multi functional by control device comprises the shell, front panel on the shell, control device and outside interface, with the front panel composed of two LCD and equivalent two sets display control press key and a set of diesel engine control order input key, with the control device composed of micro controller, display module, logic control module, communication module, with the display module composed of the liquid module of the LCD, the communication module composed of CAN control and photoelectric isolating element, outside interface composed of CAN communication interface and power, with the CAN communication interface connecting with the CAN bus monitoring system of the diesel engine. Through the control key and outside monitor system for order with feedback entry, it can provide the working status with effective information of the key, avoiding the miss keying in.
Description
(1) technical field
The present invention relates to Diesel Engine Technique Field, be specifically related to a kind of diesel engine on-site control apparatus.
(2) background technique
At present; the marine diesel engine supervisory device adopts the on-the-spot display monitoring data of analogue instrument usually; and with instrument with control knob is installed on the diesel engine or by the machine; understand the information such as rotating speed, temperature, pressure of diesel engine by instrument, by orders such as the other fingertip control diesel engine starting of machine, shutdown.This mode inconvenience is observed the diesel engine service data intuitively, and data display is not comprehensive yet; The control command input does not have feedback information; And when fault such as out-of-limit appears in diesel engine, need the professional workforce to judge according to Monitoring Data, can not in time see fault message.
Some diesel engine side display control units are arranged now, as number of patent application is that the Chinese patent " electronic cabinet for intelligent in-situ monitor of diesel engine as primary power of ship " of ZL 01113424 discloses a kind of diesel engine integrated monitoring apparatus, comprise data acquisition unit, display unit, malfunction alarm and security protection unit etc., this system is integrated in one monitoring, diagnosis and Presentation Function, so structure is complicated, fault is to show by warning light, does not have concrete fault message; Number of patent application is that the Chinese patent " diesel engine supervisory circuit plate " of ZL 01245620 discloses a kind of diesel engine monitoring host computer plate; be characterized in being connected between indicating meter and the various sensor; realize collection, processing and the demonstration of diesel engine service data; its shortcoming is not have display screen; only rely on instrument and tutorial light video data and fault message; demonstration information is subjected to the hardware condition restriction; the input of control command only provides several simple button, does not have the functions such as interlock protection of button.
(3) summary of the invention
The object of the present invention is to provide a kind of easy to operate, the diesel engine side multi-function device and the controlling method of band Presentation Function, control function, communication function.
Treatment device of the present invention is: it comprises housing, is arranged on front panel, the external interface on the housing and is arranged on the interior control gear of housing that front panel comprises two liquid crystal display panel and corresponding two groups of demonstration control buttons and one group of Diesel Engine Control order input button; Control gear comprises microcontroller, display modular, Logic control module and communication module, display modular, Logic control module all is connected with microcontroller with communication module, display modular comprises Liquid Crystal Module and the driver that connects liquid crystal display panel, show that control button and Diesel Engine Control order input button comprises luminous point and light key tutorial light, the output of Logic control module links to each other with the control signal line of luminous point with light key tutorial light, communication module comprises CAN controller and optoelectronic isolating element, the CAN controller connects microcontroller by optoelectronic isolating element, external interface comprises CAN communication interface and power supply, and the CAN communication interface connects the diesel engine supervisory system by the CAN bus.
Treatment device of the present invention also has some structure characteristics like this:
1, described Logic control module is a programmable logic device (CPLD), and ten I/O mouths and two pulse-width modulated output signal PWM1 of microcontroller link to each other with the I/O mouth of programmable logic device (CPLD) respectively with PWM2;
2, described display modular is the colorized lcd display model of 320 * 240 pixels and supporting driver thereof, and the CAN controller adopts the PCA82C250 chip.
Controlling method of the present invention is:
System initialization;
With diesel engine supervisory system carrying out shake communication, if verification correctly then enter main circulating program, is returned if verification is incorrect;
If verification correctly then enter main circulating program, judges at first whether the new data flag position is 1, if then enter the data processing subroutine; If not judging further then whether key flag bit is 1;
After the data processing end of subroutine, clear flag bit continues to judge whether key flag bit is 1;
If key flag bit is 1 then further judges it is which key operation, and enter the respective keys responder, if be not 1 then loop ends and returning;
Clear flag bit after the key response EOP end of program, loop ends is also returned;
In main program circular flow process,, then enter corresponding timer interrupt routine if the timing of timer arrives; If the CAN communication bus has data to send, then enter corresponding communicating interrupt program, regularly interrupt priority level is 1, communicating interrupt priority is 2.
Controlling method of the present invention also has some technical characteristicss like this:
1, the processing procedure of described data processing subroutine is:
At first whether judgment data is fault message, if then change the corresponding failure processor over to, handles the back clear screen, and clear Data Labels position, returns main program;
If not fault message, whether be button feedback response message, if then carry out corresponding led status control if then continuing judgment data;
Continue then to judge whether to be service data information that if then carry out the variable assignments of service data, main program if not directly clear Data Labels position then, is returned in clear Data Labels position behind the variable assignments if not button feedback response message;
2, the processing procedure of described timer interrupt routine is:
The time lag of timer interrupt routine is 50ms, and interrupt priority level is 1;
After entering interrupt routine, clear screen makes variable N=N+1;
Judge whether N equals 2, if make N=0, scanning button inlet opening has judged whether that new button presses, if having then make key flag bit=1, interrupt routine finishes; If do not have then the interrupt routine end;
If N is not equal to 2, interrupt routine finishes;
3, the processing procedure of described communicating interrupt program is:
The communicating interrupt program adopts to receive interrupts, and interrupt priority level is 2, when data send, and the entry communication interrupt routine;
After entering interrupt routine, receive new data, put the Data Labels position simultaneously, interrupt routine finishes.
The present invention can realize following function:
Presentation Function: two liquid crystal screens show running parameter and the fault message in the diesel engine running, and two groups show that the control buttons can control the displaying contents of two liquid crystal screens, as page turning, and the conversion of text, figure or fault mode etc.;
The control function: control input button comprises Diesel Engine Control orders such as starting, shutdown, operation are equipped with just, the other control of machine, speed regulator test, jiggering;
Communication function: link to each other with the diesel engine communication in monitoring system by the CAN bus, running parameter in the diesel engine running and fault message install to this by the CAN bus transfer, after treatment, are presented on two liquid crystal screens.
Liquid crystal display panel has three kinds of patterns: text, figure and fault, and can be by switching by key control, when fault took place, the left side liquid crystal display panel automatically switched to fault mode, show current fault message, first row that the fault of up-to-date generation always places fault message to show;
Under every kind of pattern, but the multipage demonstration is the easy-to-operat person, rationally arranges every page of content displayed; Adopt two liquid crystal display panel, also play the backup effect, when one of them broke down, another liquid crystal display panel also can show whole diesel engine operation informations.Button has prompting and logical interlock function, prevent the operator occur mistake by or wrong by, each button comprises luminous point and light key tutorial light, the function of this button representative of the bright expression of luminous point is had an effect, bright this button of then representing of light key is that effectively the logical relation between them is relevant with the diesel engine running state.
Characteristics of the present invention are:
(1) multi-mode shows.Each display screen all has three display modes: text, figure and fault, these three display modes can switch by corresponding button.
Text Mode: the working status parameter that shows diesel engine with literal and digital form;
Graphic model: show the running parameter of diesel engine and the information such as upper and lower limit of a part of parameter with graphics mode;
Fault mode: when fault took place, left screen automatically switched to fault mode, showed fault title and failure code.
(2) multipage shows.For showing more information, under every kind of pattern, but all multipage shows, and controls by turnover key.
Be the easy-to-operat person, rationally arrange every page of content displayed.Under text or graphic model, take all factors into consideration the relation of each running parameter of diesel engine and operator factors such as degree of attentiveness to each parameter of diesel engine, with all diesel engine work parameter optimizations combinations, form every page of content.Under fault mode, first row that the fault of up-to-date generation always places fault message to show.
(3) double screen backup
The present invention adopts two liquid crystal display panel, and when one of them broke down, another liquid crystal display panel also can show whole diesel engine operation informations, has improved system reliability.
(4) button interlock
Each button comprises luminous point and two tutorial light of light key, and each tutorial light has three kinds of states: bright, go out, glimmer, luminous point can reflect different information with the combination of light key tutorial light different conditions.During system works,, show the luminous point and the light key led status of each button correspondence according to the relation of the logical interlock between diesel engine work at present state and each control command.
The information of luminous point and light key representative is as follows:
Luminous point: this keypress function of the bright reflection of luminous point is effective, and this keypress function of luminous point flicker reflection is carried out, and luminous point goes out and reflects that this keypress function is invalid.
The light key: this button of the bright reflection of light key is pressed effectively, the light key go out the reflection this button press invalid.The light bonded state provides operation prompt information for the operator, prevents misoperation.Group alarm is represented in the flicker of light key, replys by this key.
(5) the control command input of band feedback
Press the control command button, its information is transferred to outside diesel engine supervisory system by CAN bus communication interface, the diesel engine supervisory system is carried out control command, and implementation status fed back to this machine on-site control apparatus, the machine on-site control apparatus is determined the luminous point and the light key led status of control button then according to feedback states.
(4) description of drawings
Fig. 1 is a front-panel structure schematic representation of the present invention;
Fig. 2 is a system hardware connection diagram of the present invention;
Fig. 3-Fig. 6 is a systems soft ware flow chart of the present invention.
(5) embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
In conjunction with Fig. 1, the present embodiment front-panel structure comprises two liquid crystal display panel (display screen 1, display screen 2), and two groups of corresponding demonstration control buttons (button 1～10, button 11～20), one group of Diesel Engine Control order input button (button 21～35).External interface links to each other with the diesel engine supervisory system by the CAN bus.
Show that the control button specifically comprises: upward page or leaf, nextpage, text, figure, alarm are showed, confirm, add brightness, are subtracted brightness etc.
Control input button comprises: main ECS work, be equipped with by ECS work, test lamp, the machine/remote control, starting, shutdown, acceleration, deceleration, clutch combination, clutch disconnection, speed regulator test, hypervelocity, jiggering etc.
The definition of button also can be made amendment or expand as required.
In conjunction with Fig. 2, the present embodiment system hardware mainly comprises display modular, Logic control module and communication module three parts, and the main control chip can adopt the MPC566 chip of motorola inc.Display modular is made up of driver and liquid crystal display panel, and the datawire of two drivers all links to each other with microcontroller with address wire, and is distinguished by the chip select line CS1 and the CS2 of microcontroller; Logic control module is realized by programmable logic device (CPLD), realize the display logic control of button tutorial light by logical sequence programming to the CPLD chip, ten delivery outlets of microcontroller link to each other with the CPLD inlet opening, realize the output logic control of CPLD by the combination of these ten I/O mouth different conditions, in addition, two pulse-width modulated output signal PWM1 of microcontroller link to each other with CPLD with PWM2, be used for the flicker and the Brightness control of button tutorial light, the delivery outlet of the CPLD (LED1～LED70) that links to each other with the control signal line of button tutorial light, realize the task of control button led status, programmable logic device (CPLD) can adopt EPM7256; Isolation links to each other with receiving terminal with the transmission of microcontroller with photoelectricity through the CAN controller in the communication module, and the CAN controller can adopt the PCA82C250 chip.In addition, because the I/O mouth that can use of microcontroller is more, the identification of button input can be by regularly I/O scanning, and as shown in FIG., 35 I/O that 35 buttons directly are connected on microcontroller go up (Key1～Key35).
In conjunction with Fig. 3-Fig. 6, present embodiment software comprises four parts: main program, data processing subroutine, timer interrupt program, communicating interrupt program.Wherein main program realize system initialization, with functions such as diesel engine supervisory system carrying out shake communication, data processing, key response processing; The data processing subroutine realizes the processing of fault message, diesel engine Operational Limits, button feedback response message; Timer interrupt program is realized screen-refresh and key scan function; The communicating interrupt program realizes that data receive and sending function.
The main program processing procedure is:
System initialization;
With diesel engine supervisory system carrying out shake communication, if verification correctly then enter main circulating program, is returned if verification is incorrect;
If verification correctly then enter main circulating program, judges that at first new data flag is for whether being 1, if then enter the data processing subroutine; If not judging further then whether key flag bit is 1;
After the data processing end of subroutine, clear flag bit continues to judge whether key flag bit is 1;
If key flag bit is 1 then further judges it is which key operation, and enter the respective keys responder, if be not 1 then loop ends and returning;
Clear flag bit after the key response EOP end of program, loop ends is also returned;
In main program circular flow process,, then enter corresponding timer interrupt routine if the timing of timer arrives; If the CAN communication bus has data to send, then enter corresponding communicating interrupt program, regularly interrupt priority level is 1, communicating interrupt priority is 2.
The processing procedure of data processing subroutine is:
At first whether judgment data is fault message, if then change the corresponding failure processor over to, handles the back clear screen, and clear Data Labels position, returns main program;
If not fault message, whether be button feedback response message, if then carry out corresponding led status control if then continuing judgment data;
Continue then to judge whether to be service data information that if then carry out the variable assignments of service data, main program if not directly clear Data Labels position then, is returned in clear Data Labels position behind the variable assignments if not button feedback response message.
The processing procedure of timer interrupt routine is:
The time lag of timer interrupt routine is 50ms, and interrupt priority level is 1;
After entering interrupt routine, clear screen makes variable N=N+1;
Judge whether N equals 2, if make N=0, scanning button inlet opening has judged whether that new button presses, if having then make key flag bit=1, interrupt routine finishes; If do not have then the interrupt routine end;
If N is not equal to 2, interrupt routine finishes.
The processing procedure of communicating interrupt program is:
The communicating interrupt program adopts to receive interrupts, and interrupt priority level is 2; When data send, the entry communication interrupt routine;
After entering interrupt routine, receive new data, put the Data Labels position simultaneously, interrupt routine finishes.
During system works, external interface is linked to each other with the diesel engine supervisory system, link to each other by the communication interface of CAN bus with outside diesel engine supervisory system, the running parameter of transmission diesel engine, fault message and control command input and response message have been avoided wiring too much between diesel engine and control gear.By CAN communication bus transmission of monitoring data, real-time update, and on liquid crystal screen, show.
Show more contents by last page or leaf, nextpage by the key control liquid crystal screen, by text, figure and alarm display button switchable liquid crystal screen display mode.When warning message, left screen automatically switches to fault mode, shows current fault message.Simultaneously, confirmation key flicker, operator press confirmation key and do to report to the police and reply.
Working properly when the diesel engine each several part, in the time of can starting, at first push is equipped with just button, and the other control of machine button sends to supervisory system by the CAN bus, feeds back to the machine on-site control apparatus after determining.The machine on-site control apparatus shows the luminous point and the light key of control button then according to feedback information, has only diesel engine each several part service data normal, and the light key of buttons such as starting, speed regulator test, jiggering is bright, and press this button and be only effectively this moment.
Under the other state of a control of machine, can press starting, speed regulator test, jiggering order; After the starting, stop and hypervelocity order activation.
Claims (3)
1. multifunctional on-site control apparatus of diesel engine, it comprises housing, is arranged on front panel, the external interface on the housing and is arranged on the interior control gear of housing, it is characterized in that front panel comprises two liquid crystal display panel and corresponding two groups of demonstration control buttons and one group of Diesel Engine Control order input button; Control gear comprises microcontroller, display modular, Logic control module and communication module, display modular, Logic control module all is connected with microcontroller with communication module, display modular comprises Liquid Crystal Module and the driver that connects liquid crystal display panel, show that control button and Diesel Engine Control order input button comprises luminous point and light key tutorial light, the output of Logic control module links to each other with the control signal line of luminous point with light key tutorial light, communication module comprises CAN controller and optoelectronic isolating element, the CAN controller connects microcontroller by optoelectronic isolating element, external interface comprises CAN communication interface and power supply, and the CAN communication interface connects the diesel engine supervisory system by the CAN bus.
2. multifunctional on-site control apparatus of diesel engine according to claim 1, it is characterized in that described Logic control module is a programmable logic device (CPLD), ten I/O mouths and two pulse-width modulated output signal PWM1 of microcontroller link to each other with the I/O mouth of programmable logic device (CPLD) respectively with PWM2.
3. multifunctional on-site control apparatus of diesel engine according to claim 1 is characterized in that described display modular is the colorized lcd display model of 320 * 240 pixels and supporting driver thereof, and the CAN controller adopts the PCA82C250 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100721626A CN100491710C (en) | 2007-04-30 | 2007-04-30 | Multifunctional on-site control apparatus of diesel engine and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100721626A CN100491710C (en) | 2007-04-30 | 2007-04-30 | Multifunctional on-site control apparatus of diesel engine and control method thereof |
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| CN2008101656169A Division CN101440748B (en) | 2007-04-30 | 2007-04-30 | Multifunctional machine side control method of diesel |
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| Publication Number | Publication Date |
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| CN101042070A CN101042070A (en) | 2007-09-26 |
| CN100491710C true CN100491710C (en) | 2009-05-27 |
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| CNB2007100721626A Expired - Fee Related CN100491710C (en) | 2007-04-30 | 2007-04-30 | Multifunctional on-site control apparatus of diesel engine and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103092094A (en) * | 2011-11-04 | 2013-05-08 | 安高电子工业及贸易有限公司 | Novel generator set electronic control panel |
| CN110366760B (en) * | 2016-12-30 | 2024-05-07 | 纽斯高动力有限责任公司 | Nuclear reactor protection system and method |
| CN107659517B (en) * | 2017-06-06 | 2024-05-07 | 广东优力普物联科技有限公司 | PoE switch and management system based on local management |
| CN107045817B (en) * | 2017-06-14 | 2023-04-14 | 武汉理工大学 | Marine diesel engine virtual reality operation demonstration and training test bench |
| CN109213027B (en) * | 2018-07-16 | 2021-07-16 | 哈尔滨工程大学 | Speed regulation unit of marine low-speed common rail diesel engine based on mu/COS-II real-time operation system |
| CN113178948A (en) * | 2021-04-16 | 2021-07-27 | 安徽启电自动化科技有限公司 | Programming intelligent control instrument |
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Non-Patent Citations (2)
| Title |
|---|
| 柴油发电机用柴油机的微机监控***. 何伟等.工业仪表与自动化装置，第2期. 2003 |
| 柴油发电机用柴油机的微机监控***. 何伟等.工业仪表与自动化装置，第2期. 2003 * |
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| CN101042070A (en) | 2007-09-26 |
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Granted publication date: 20090527 Termination date: 20120430 |