CN100533314C - Cold-storage container micro controller fault diagnosing system - Google Patents
Cold-storage container micro controller fault diagnosing system Download PDFInfo
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- CN100533314C CN100533314C CNB2007100068273A CN200710006827A CN100533314C CN 100533314 C CN100533314 C CN 100533314C CN B2007100068273 A CNB2007100068273 A CN B2007100068273A CN 200710006827 A CN200710006827 A CN 200710006827A CN 100533314 C CN100533314 C CN 100533314C
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Abstract
The invention discloses a fault diagnosis system for refrigerated container microcontroller including a computer that is configured with PLC as input / output interface, and connects with I / O interface board through PLC and CPU board of the tested microcontroller. It establishes a refrigerated container software model and expert analysis system in the computer, to simulate various operating conditions of the refrigerated container, and automatically conduct a comprehensive test on running state and fault nature of microcontroller, providing the test data to the expert system for a specific assessment, and automatic generating the test result and maintenance written report.
Description
Technical field
The present invention relates to cold-storage container micro controller, special relevant with cold-storage container micro controller fault diagnosing system.
Background technology
In recent years, the encased conveying industry is as the core industry of modern logistics, the fast development of Ri Xinyueyiing.Wherein the frozen products insulated container accumulating is a kind of high profit, high risk container accumulating, and it needs the reliable support of hi-tech, could avoid excessive risk effectively and obtain high profit.The control system core of frozen products insulated container has adopted advanced microcomputer controller (abbreviation microcontroller) technology, to guarantee the needed best accumulating storage conditions of accumulating (valuable) goods in the frozen products insulated container case.This microcontroller is functional, but the maintenance difficulty of circuit board (as CPU board and I/O interface board) is big, present countries in the world are engaged in frozen products insulated container accumulating and leading subscriber or shipping company and are not possessed this maintainability, must drop into a lot of funds and buy a large amount of circuit board spare parts in order to changing use.Foregoing circuit plate maintenance difficulty greatly the most chief reason is to be difficult to diagnosis and is out of order, and further provides fault zone or trouble unit, also just makes maintenance job have no way of doing it and further launch.Facts have proved, to the fault diagnosis of circuit board and provide the fault zone or trouble unit, only depend on manually to be difficult to accomplish by simple instrument and equipment of the prior art.
Summary of the invention
The invention reside in and solve the above-mentioned technological deficiency that prior art exists, a kind of cold-storage container micro controller fault diagnosing system is provided, main task is to make the hardware composition of this system to be suitable for the microcontroller on-line testing.
Further task is to be support with above-mentioned hardware, makes this system carry out automatic fault diagnosis to frozen products insulated container microcomputer controller circuit board, and provides maintenance tutorial messages such as fault zone or trouble unit.
Its technical solution is:
A kind of cold-storage container micro controller fault diagnosing system comprises computing machine, and computer configuration PLC is as input/output interface, links to each other with the I/O interface board with CPU board in the tested microcontroller by PLC; Above-mentioned fault diagnosis system has:
(1) in computing machine, sets up the software model of frozen products insulated container, the various operating conditions of simulation frozen products insulated container, the refrigeration of microcontroller, defrost and heating running status and nature of trouble are carried out full test automatically, test data is offered following analysis expert judgement system make a concrete analysis of judgement;
(2) in computing machine, set up analysis expert and judge system, this analysis expert judges that system database comprises the decoding unit to microcontroller plated circuit figure, the analytic unit of IC integrated package and each several part circuit function, test point voltage-current relationship curved unit, fault metamessage unit; Each fault metamessage comprises sequence number, failure-description information, fault components and parts information, localization of fault pattern information and expert diagnosis information, and wherein localization of fault pattern information comprises device and node serial number in circuit board universe figure, fault zone figure, the fault zone;
(3) test result and the written maintenance that generates microcontroller circuit automatically reported.
The aforementioned calculation machine by 5613 address cards on it, in the mode of Profibus fieldbus, links to each other with ET200 distributed I/O module; Controlled the switching value and the analog quantity channel of the I/O module of PLC, microcontroller to be measured links to each other with analog quantity channel with the switching value of the I/O module of PLC.
Above-mentioned analysis expert judgement system database more specifically comprises the plated circuit figure of controller, various common fault diagnosis parsing tree, various IC integrated circuit (IC) logic figure and is used to test the printed sheet measurement point normal voltage value and the V-I curve of comparison.
The aforementioned calculation machine also has the function storehouse of running status under the various normal or failure situations of simulation frozen products insulated container.
The aforementioned calculation machine, its system master interface comprises System menu and tool bar icon, the click of System menu enters the preliminary work that function comprises test, the hardware circuit test, the functional test of ice chest operational mode, analysis expert is judged system, print, operation training simulator and instrument, the perform region that System menu shows mainly contains three parts, first ice chest working state of system simulation drawing, this figure uses animation simulation in real time under the control of microcontroller, refrigeration compressor in the ice chest system, condenser fan, the evaporator high-speed fan, the low speed blower fan, the SSV valve, the duty of SMV valve, it two is to have drawn the function button that may use in test process or the program debug process, it three is microcontroller mode of operation testing procedure and control chart, drawn the test microcontroller among the figure, system is set gradually be refrigeration mode, the refrigeration pattern, the step and the operating key of heating mode and manual defrost pattern; Above-mentioned tool bar icon, can open the working state figure of PLC parts in the display system respectively with the click icon, connect the power supply of microcontroller to be measured, cut off the power supply of microcontroller to be measured, register new microcontroller information to be measured, select the record of current microcontroller to be measured, the interface as a result of viewing hardware self-verifying, the test interface that shows frozen mode, preview and printing maintenance report show microcontroller circuit figure and fault diagnosis interface, show the fault interface is set, show the ice chest operation keyboard, the workspace of scavenge system display interface is opened the system help interface and is logged off.
Among the present invention, because relating to the signal of (inspection) to be measured microcontroller needs is out and out hardware electric signals, and the software ice chest model that computing machine is set up is a digital signal, for connection and the corresponding conversion of signal that realizes both, native system has adopted PLC technology (programmable controller technology), be used as the signal input/output circuitry of computing machine, the digital signal of computing machine be converted to electric signal, link to each other with microcontroller then by PLC.Make the hardware of this system form the on-line testing that can be suitable for to microcontroller.In addition, the present invention is a support with above-mentioned hardware, according to actual needs by disposing and set up the corresponding software storehouse, frozen products insulated container control system service experience, automatic monitoring technique, computer information technology can be integrated in one, at present loaded down with trivial details manual testing, to the high requirement of maintenance expert professional intellectual ability and experience, carry out robotization, the software implementation layout is drafted, thereby improve maintenance personal's maintainability and efficient greatly.
Description of drawings
Fig. 1 is the frozen products insulated container each several part parts work relationship theory diagram in real work in the prior art.
Fig. 2 is one embodiment of the present invention structural principle schematic block diagram, shows chief component of the present invention and corresponding relation thereof.
Fig. 3 is for providing wind pushing temperature sensor (STS) the electric signal principle schematic of software control to microcontroller.
The present invention will be described below in conjunction with accompanying drawing:
Embodiment
The present invention has mainly taked following technical approach in specific implementation process:
In conjunction with Fig. 1, the function of microcontroller is to accept the status signal of Be Controlled object (ice chest temperature etc.) by sensor in the system, then according to preset program, refrigeration plants such as compressor is controlled, and meets the control requirement with the state that guarantees ice chest.
In conjunction with Fig. 2, test in order to dismantle back breadboard fault microcontroller from on-the-spot frozen products insulated container one, just being necessary for microcontroller provides the running environment of simulation, shown among the figure and how to have passed through soft, the combination of hardware of computing machine, for microcontroller provides the various operating mode running environment of flexible ice chest of simulation, realize test to microcontroller performance, phenomenon of the failure.Subsequently, can use the database in the fault diagnosis expert system that develops according to the maintenance expert professional experiences in the computer that phenomenon of the failure is analyzed, provide the accurate location and the maintenance tutorial message of fault zone or trouble unit.
1, writes the workflow that the VB program realizes system
The every work that will finish when the manual test microcontroller has all obtained embodiment in the VB program.Such as, give the microcontroller energized, the beginning on-line testing; Automatically extract running parameter, the sensing data of collection, failure message code in the microcontroller; Copy the working model of actual ice chest, with ice chest be set to refrigeration, refrigeration, heating respectively, artificial defrost state carries out performance test; The automatic formation of maintenance report; Calling of fault diagnosis expert system; Ice chest is handled training simulators, all is to realize by the VB program.The menu of system, tool bar, and FLASH animation make system interface very friendly, and be directly perceived.
2, using PLC (WINAC) technology is set up the interface between microcontroller to be measured and the VB program
In the laboratory; in order to realize on-line automatic test to microcontroller; microcontroller must link to each other with the ice chest model in the computing machine; microcontroller will be according to the main wind pushing temperature (STS) that obtains from the ice chest model; main return air temperature (RTS); condenser pressure sensor (CPT); well heater stops electrothermal relay (HTT); defrost temperature sensor (DTS); CPDS; AMB; CPSS; HS; SPT; SRS; RRS; IP-EM; IP-CM; WP; sensors such as IP-CP; the state of protection switch; according to the default logic of microcontroller program; send control command; control refrigeration compressor (CH) respectively; condenser fan motor (CF); evaporator high speed fan motor (EF); evaporator low speed fan motor (ES); well heater (HR); suction inlet solenoid valve (SSV); suction inlet modulating solenoid valve (SMV) etc., and the light on and off of pilot lamp.
The signal that microcontroller needs is actual hardware electric signal, and the ice chest model in the software is the computer digit signal, in order to realize both connections, native system has adopted PLC technology (programmable controller technology), be used as the signal input/output circuitry of computing machine, by PLC the digital signal of computing machine is converted to electric signal, links to each other with microcontroller then.
Among the present invention, can adopt Siemens Company based on WINAC PLC software technology, the WINAC software that under the WINDOWS2000 environment, moves, can go up the control function of simulation PLC at PC (personal computer), carry out control program with the establishment of STEP7 language, by being installed in 5613 address cards on the PC,, link to each other then with ET200 distributed I/O module in the mode of Profibus fieldbus.The control that the VB program has used WINAC to provide, with the PLC swap data, the switching value and the analog quantity channel of the I/O module of control PLC.Microcontroller links to each other with analog quantity channel with the switching value of the I/O module of PLC.
Illustrate the method that the relevant electric signal of software control is provided to microcontroller below, as the method for wind pushing temperature sensor (STS) electric signal:
In microcontroller when work,, external wind pushing temperature sensor is the resistance by negative temperature coefficient work (25 ℃ time, resistance value is 10K).When microcontroller was carried out the on-line performance test, computer software ice chest model should provide the electric signal of representing the transformation temperature value to microcontroller, has adopted following circuit to realize this function in the system:
ECA1 and ECA2 are the connection terminals of microcontroller STS input circuit among Fig. 3.STS_CHECK is switching value output (DO) contact of PLC, when test STS input circuit, and this closing of contact; STS_ADJ is PLC DO contact, when using software change STS value, and this closing of contact; Have one road PLC analog quantity voltage output 1-10V (AO) to connect the branch road of connecting with contact STS_ADJ in the drawings in addition, this voltage changes with the STS temperature value of software set.
When contact STS_ADJ, STS_CHECK, K1 all disconnect, be 10K resistance between microcontroller terminal ECA1, the ECA2, at this moment, can manually rotate the STS100K potentiometer, change the temperature value of STS.
When the STS_ADJ closing of contact, between microcontroller terminal ECA1, the ECA2 the STS temperature value that is subjected to the control of VB program ice chest model from the PLC analog output channel.
When the STS_CHECK closing of contact only, between microcontroller terminal ECA1, the ECA2 the about 10K value of fixed resistance, be applied to check whether the STS input circuit is normal.
3, in computing machine, set up analysis expert and judge system, this analysis expert judges that system database comprises the decoding unit to microcontroller plated circuit figure, the analytic unit of IC integrated package and each several part circuit function, test point voltage-current relationship curved unit, fault metamessage unit; Each fault metamessage comprises sequence number, failure-description information, fault components and parts information, localization of fault pattern information and expert diagnosis information, and wherein localization of fault pattern information comprises device and node serial number in circuit board universe figure, fault zone figure, the fault zone.Comprise the plated circuit figure such as controller, various common fault diagnosis parsing tree, various IC integrated circuit (IC) logic figure particularly and be used to test the printed sheet measurement point normal voltage value and the V-I curve of comparison.
4, native system also has the function storehouse of running status under the various normal or failure situations of simulation frozen products insulated container in computing machine.
5, the native system function and the operation that can possess:
The plug that is electrically connected that native system is relevant links to each other with microcontroller to be measured, and menu that performance automatic test thereafter, fault diagnosis, result's printing all can be by the WINDOWS desktops or tool bar are operated and shown.The function of the light emitting diode process flow diagram on the system operation table top, digital demonstration, operation push-button all can have identical demonstration on the CRT interface.
5.1 menu and tool bar
5.1.1 every function of System menu
Preparation (preliminary work of test)
The duty of PLC parts in WINAC (PLC) STATUS-display system
The microcontroller information to be measured that New Controller registration-registration is new
The record of Select Controller Registration Record-current microcontroller to be measured of selection
The power supply of Controller Power ON-connection microcontroller to be measured
The power supply of Controller Power OFF-cut-out microcontroller to be measured
Exit-log off
Test for Hardware circuits (hardware circuit test)
PS circuit of controller-test microcontroller power circuit
Display module-test display module
Existing and the current warning message of Inactive and Active Alarms of Controller-extraction microcontroller
Inactive and Active Alarms of DataCORDER)-extract datalogger to have and current warning message
Test on sensor input circuits-testing sensor input circuit
The communicating circuit of Communication with PC-test and PC
The result of Result of Hardware Auto Check-hardware self-verifying
Test for Operation mode (functional test of ice chest operational mode)
Read Function Codes-the read operation code of microcontroller
The test of Frozen mode-frozen mode
Perishable mode and Checking SMV-refrigeration pattern test and inspection SMV valve
The test of Heating mode-heating mode
The Manual Defrost mode-manually test of defrost pattern
Expert System (analysis expert judgement system)
Manuals-microcontroller technical manual
AL 20-AL20 type Fault Diagnosis
ALAL 21-AL21 type Fault Diagnosis
AL 56-AL56 type Fault Diagnosis
AL 101-AL101 type Fault Diagnosis
Circuit Diagram ﹠amp; Troubles Shooting-microcontroller circuit figure and fault diagnosis
Print (printing)
Report Edit-editor keeps in repair report
Preview ﹠amp; Print-preview and printing maintenance report
Report of hardware circuits test-hardware circuit test report
Training Simulator (operation training simulator)
Setting faults-be provided with fault
Frozen mode-frozen mode
Perisable mode-refrigeration pattern
Tools (instrument)
KEYPAD-ice chest operation keyboard
The workspace of Clean Screen-scavenge system display interface
System Database Maintenance-maintenance system database
Add Operator-interpolation operating personnel
Help (help)
About-open relevant system information interface
Help contents-open system help interface
5.1.2 system tool bar icon
System's display frame also is provided with the tool bar icon, can open the working state figure of PLC parts in the display system respectively with the click icon, connect the power supply of microcontroller to be measured, cut off the power supply of microcontroller to be measured, register new microcontroller information to be measured, select the record of current microcontroller to be measured, the interface as a result of viewing hardware self-verifying, the test interface of demonstration frozen mode, preview and printing maintenance report, show microcontroller circuit figure and fault diagnosis interface, show the fault interface is set, show the ice chest operation keyboard, the workspace of scavenge system display interface, open the system help interface, log off.
5.2 the preliminary work of microcontroller on-line testing
The preliminary work of microcontroller being carried out on-line testing is as follows:
1. with system's energized, with mouse-click " WINAC (PLC) " icon, check and WINAC (PLC) is set to be in the RUN state,, please click the STOP button, and then click the RUN button if the RUN green light does not have bright at the WINDOWS desktop.The operation of WINAC (PLC) is one of system's basic environmental baseline of carrying out on-line testing.
Operation " cold-storage container micro controller fault diagnosing system " program is imported right user name and password then, enters the main interface of system's operation.
2. the ice chest microcontroller that will fetch from the scene is connected to the electric interfaces of system, and the ice chest model that microcontroller and system are provided links to each other.
3. click " New Controller registration " menu or toolbar icon " New Reg. " (hereinafter at system master interface, use quotation marks overstriking body surface to show the menucommand or the tool bar icon of use)-the new microcontroller information to be measured of registration, or the record of the current microcontroller to be measured of " Select Controller Registration Record "-selection, for microcontroller to be measured is set a maintenance record number (Service No.), or making tested microcontroller meet existing corresponding maintenance record number (Service No.) in the database, this record number will guarantee that the on-line testing result of this microcontroller is recorded in the relative recording of database.Can see that in follow-up on-line testing project if do not choose the ServiceNo. of microcontroller in advance, relevant test can not continue.
4. then, click the power supply of " Controller Power ON " or icon " C.Power On "-connection microcontroller to be measured, make the microcontroller energising, the beginning on-line testing.In test process, also can survey requirement according to test, use " Controller Power OFF " order or icon " C.P.Off "-the cut off power supply of microcontroller to be measured.Even, sometimes also can use " WINAC (PLC) STATUS " order or " PLC Status " icon, the interface of calling WINAC in the display system (PLC) parts duty stops the work of WINAC, with so that simulated environment resets, remove false alarm.
5.3 the on-line testing of microcontroller hardware circuit
When carrying out the on-line testing of this section, switch on, and set the Service No. of microcontroller to be measured to microcontroller.
5.3.1 test microcontroller sensor input circuit
Click " Test on sensor input circuits " menucommand, open sensor input circuit test interface, click " START " button in the interface, waiting system calls the corresponding function of " DATALINE " program automatically (this process approximately need 50 second then, in the implementation, please not want rolling mouse! ), microcontroller to be measured pair and performance test bed each the sensor determination numerical value of the ice chest that links to each other, and with system in the normal data preserved compare, thereby go out to judge the work that the sensor input circuit is whether correct.On screen, show test results, and the test record of this microcontroller in the data-in storehouse.Before clicking " START " button, need the position of the change-over switch of all the 100K potentiometers top on the check system operating table surface should be on the right side (make-position), button on the screen display interface " Enable STS/RTS Adj. " should be redness (at this moment, computer software is not controlled the numerical value of STS/RTS), the external sensor of each input circuit is the same when doing standard testing, is identical fixed resistance value.
5.3.2 microcontroller hardware circuit self-verifying
Click " Results of Hardware Auto Check " menucommand or " Hard.Test " icon, open the automatic test interface of microcontroller hardware circuit, click " START " button in the interface, system can test whole hardware circuits of microcontroller automatically, on screen, show test results, and the test record of this microcontroller in the data-in storehouse.
In the menu of hardware circuit test, also be provided with separately to microcontroller power circuit, display module, with the test of PC communication function, and the interface of extracting existing and current warning message in microcontroller and the datalogger.
5.4 the functional test of ice chest operational mode
Click " Frozen Mode " menucommand or " Func.Test " icon, the functional test interface of opening the ice chest operational mode, the demonstration at this interface is exactly the demonstration at program master interface.The workspace of this demonstration is made up of three parts:
The one, ice chest working state of system simulation drawing, what this figure was real-time uses animation simulation under the control of microcontroller, the duty of refrigeration compressor, condenser fan, evaporator high-speed fan, low speed blower fan, SSV valve, SMV valve in the ice chest system.
The function button that may use in test process or the program debug process has been drawn in the second portion zone, " EnableSTS/RTS Adj " function button for example is set (after clicking, the color of this button is changed to green, button text changes and is " DisableSTS/RTS Adj "), click " Enable STS/RTS Adj " key, ventilation temperature/return air temperature in the system model is switched to by computer software setting (by model data control default in the program, or the pulling bar that manually drags below this button of screen display interface changes temperature) by the setting of corresponding hardware potentiometer.
Third part is microcontroller mode of operation testing procedure and control chart, has drawn the test microcontroller among the figure, system is set gradually be refrigeration mode, refrigeration pattern, heating mode and the manually step and the operating key of defrost pattern.
1. the setting of refrigeration mode and test
" PROCEDURE 1 " button in hit testing step zone, click again among the figure " be provided with-18 ℃; ... " the other triangle arrow button of step, system's design temperature of microcontroller to be measured automatically is set to-18 ℃ (being in refrigeration mode design temperature scope), and the temperature of ice chest model wind pushing temperature sensor (STS), return air temperature sensor (RTS) is set to-3.8 ℃ and-2.9 ℃ respectively; Then the microcontroller power supply is disconnected, energized restarts microcontroller again; The control command that system sends the self-verifying microcontroller, normal order is: at first evaporator high speed fan (EF) work, RETURN (return air temperature) pilot lamp is bright; After a little while, evaporator high speed fan (EF) stops, and evaporator hangs down fan (ES) and starts working; Subsequently, condenser fan (CF) work is that refrigeration compressor (CH) is started working at last, and COOL is bright for the refrigeration pilot lamp.If above state is normal, screen will show " PASS ", and with the test record of this microcontroller of check result data-in storehouse.Otherwise the functional test failure of refrigeration mode will be thought by system, and test result is also with the data-in storehouse.
2. refrigerate the functional test of pattern
Click " PROCEDURE 2 " button, the picture of switch test step in this picture, is clicked step and " is provided with-4 ℃, checks SMV " other triangle button, and system will enter the functional test of refrigeration pattern.In this step, system at first is transformed to-4 ℃ with microcontroller to ice chest temperature controlling setting value automatically, the STS=of ice chest-3.8 ℃, RTS=-2.9 ℃, system's control command that the self-verifying microcontroller is sent then, normal state should be: SUPPLY (wind pushing temperature) pilot lamp is bright, refrigeration compressor (CH), evaporator high speed fan (EF), condenser fan (CF) work, and COOL is bright for the refrigeration pilot lamp.In this step also with the control function of special test compression machine suction inlet variable valve (SMV), its method is, refrigeration pattern in service, work along with refrigeration compressor, the return air of ice chest model, ventilation temperature can reduce (can use the pulling bar in the screen interface to simulate this process) gradually, when the numerical value of STS and RTS during near ice chest temperature controlled setting value-4 ℃, the aperture of SMV can diminish gradually from 100%.If systems inspection less than above-mentioned state, then think the refrigeration pattern control have fault.
3. heating and the manually functional test of defrost pattern
The functional test and the above-mentioned method of testing of heating and manual defrost pattern are similar.In the automatic setting up procedure of above ice chest design temperature, if the control that is provided with is malfunctioning automatically, please closes the microcontroller power supply and make WINAC (PLC) → STOP, so that fault resets, restart, can earlier design temperature manually be changed to integer.
5.5 analysis expert is judged system
Analysis expert judgement system is with the summary of the senior maintenance expert service experience of form of software realization and gathers, comprising decoding to controller micro computer plated circuit figure, the analysis of IC integrated package and each several part circuit function, test point voltage-current relationship curve.
For the fault that microcontroller is found in test, can use expert system to carry out deep analysis to the failure message that above-mentioned ice chest controller performance automatic testing stand tests out, carry out intellectuality and judge, determine fault element accurately.
1. microcontroller circuit figure and fault diagnosis
Click " Circuits Diagram ﹠amp; Trouble Shooting " menucommand or " Expertor " tool bar icon, system opens the interface, and the submenu below the interface can begin following follow-up work respectively:
● " chip "---show the position of each chip at printed circuit board (PCB), and the technical information of selected chip.
● " relay "---show the position of each relay at printed circuit board (PCB), and the explanation of selected relay interlock circuit.
● " interface board "---the circuit theory diagrams of display interface plate, and the voltage of important test point on the plate.
● " fault diagnosis "---according to different alarm codes, open the interface of further inquiry failure cause.
The fault diagnosis interface of the multimedia interface of 2. enriching constantly
At work, the multimedia interface of fault diagnosis can constantly add, and can enter the corresponding work picture as clicking menucommand AL20 (alarm code is AL20,24VAC power circuit fault).
5.6 the printing of maintenance report and test result
The menucommand of the printing that system provides tested microcontroller maintenance report and test result has three:
1. editor keeps in repair report (Report Edit), and this order allows operating personnel to fill in and keeps in repair the void item of reporting in the record, or carries out the manual amendment to having record.
2. browse and print maintenance report (Preview ﹠amp; Print), the maintenance of system print report.
3. print hardware circuit test report (Report of Hardware Circuits Test).
5.7 ice chest operation training simulator (Operation Taining Simulator)
Native system is except the performance test and breakdown maintenance that are applied to the ice chest microcontroller; can also be in school, boats and ships, company as frozen products insulated container operation training simulator; promptly in computing machine, have the function storehouse of running status under the various normal or failure situations of simulation frozen products insulated container; at the implication of operational mode, daily operation management, operation keyboard, display message, the aspects such as processing of various failure messages, for the personnel of manipulating of ice chest provide training." Setting Faults " interface in the system can be provided with the fault that actual frozen products insulated container equipment is difficult to be provided with in the ice chest model, simultaneously, the states such as temperature of ice chest model can be changed by software rapidly, is easy to satisfy the needs of training.Multimedia cartoon interface, very directly perceived.
5.8 instrument and help
5.8.1 instrument (Tools)
This menu provides the instrument that needs in system's use:
● KEYPAD---be the part of ice chest model, ice chest operation keyboard on the computer interface and ice chest hardware operation keyboard have identical functions.
● Clean Screen---the workspace of scavenge system display interface, before repeating to call same width of cloth screen-picture, use.
● System Database Maintenance---maintenance system database, for maintainer's use of system.
● Add Operator---for the operating personnel of maintainer's add-on system of system with password is set.
5.8.2 help
The content of system's online help can and be operated identical with the function of said system.
Need to prove, the present invention is under the guidance of above-mentioned record content, common computer technician and common electric technician are by using for reference the concrete actual relevant rudimentary technical data data of ice chest control technology, need not to spend creative work, just can rely on main hardware of the present invention to form and the function guide, improve its peripherals (parts), the establishment support software, can reproduce the invention, to satisfy actual needs better.
Claims (5)
1, a kind of cold-storage container micro controller fault diagnosing system comprises computing machine, and described computer configuration PLC is as input/output interface, links to each other with the I/O interface board with CPU board in the tested microcontroller by PLC; It is characterized in that:
(1) in computing machine, sets up the software model of frozen products insulated container, the various operating conditions of simulation frozen products insulated container, the refrigeration of microcontroller, defrost and heating running status and nature of trouble are carried out full test automatically, test data is offered following analysis expert judgement system make a concrete analysis of judgement;
(2) in computing machine, set up analysis expert and judge system, this analysis expert judges that system database comprises the decoding unit to microcontroller plated circuit figure, the analytic unit of IC integrated package and each several part circuit function, test point voltage-current relationship curved unit, fault metamessage unit; Each fault metamessage comprises sequence number, failure-description information, fault components and parts information, localization of fault pattern information and expert diagnosis information, and wherein localization of fault pattern information comprises device and node serial number in circuit board universe figure, fault zone figure, the fault zone;
(3) test result and the written maintenance that generates microcontroller circuit automatically reported.
2, cold-storage container micro controller fault diagnosing system according to claim 1 is characterized in that: described computing machine by 5613 address cards on it, in the mode of Profibus fieldbus, links to each other with ET200 distributed I/O module; Controlled the switching value and the analog quantity channel of the I/O module of PLC, microcontroller to be measured links to each other with analog quantity channel with the switching value of the I/O module of PLC.
3, cold-storage container micro controller fault diagnosing system according to claim 1 is characterized in that: described analysis expert judgement system database more specifically comprises the plated circuit figure of controller, various common fault diagnosis parsing tree, various IC integrated circuit (IC) logic figure and is used to test the printed sheet measurement point normal voltage value and the V-I curve of comparison.
4, cold-storage container micro controller fault diagnosing system according to claim 1 is characterized in that: described computing machine, also have the function storehouse of running status under the various normal or failure situations of simulation frozen products insulated container.
5, cold-storage container micro controller fault diagnosing system according to claim 1, it is characterized in that: described computing machine, its system master interface comprises System menu and tool bar icon, the click of System menu enters the preliminary work that function comprises test, the hardware circuit test, the functional test of ice chest operational mode, analysis expert is judged system, print, operation training simulator and instrument, the perform region that System menu shows mainly contains three parts, first ice chest working state of system simulation drawing, this figure uses animation simulation in real time under the control of microcontroller, refrigeration compressor in the ice chest system, condenser fan, the evaporator high-speed fan, the low speed blower fan, the SSV valve, the duty of SMV valve, it two is to have drawn the function button that may use in test process or the program debug process, it three is microcontroller mode of operation testing procedure and control chart, drawn the test microcontroller among the figure, system is set gradually be refrigeration mode, the refrigeration pattern, the step and the operating key of heating mode and manual defrost pattern; Above-mentioned tool bar icon, can open the working state figure of PLC parts in the display system respectively with the click icon, connect the power supply of microcontroller to be measured, cut off the power supply of microcontroller to be measured, register new microcontroller information to be measured, select the record of current microcontroller to be measured, the interface as a result of viewing hardware self-verifying, the test interface that shows frozen mode, preview and printing maintenance report show microcontroller circuit figure and fault diagnosis interface, show the fault interface is set, show the ice chest operation keyboard, the workspace of scavenge system display interface is opened the system help interface and is logged off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100068273A CN100533314C (en) | 2006-06-19 | 2007-01-18 | Cold-storage container micro controller fault diagnosing system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610045056.4 | 2006-06-19 | ||
| CN200610045056 | 2006-06-19 | ||
| CNB2007100068273A CN100533314C (en) | 2006-06-19 | 2007-01-18 | Cold-storage container micro controller fault diagnosing system |
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| CN101021724A CN101021724A (en) | 2007-08-22 |
| CN100533314C true CN100533314C (en) | 2009-08-26 |
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| CN102435878A (en) * | 2011-09-16 | 2012-05-02 | 国电南瑞科技股份有限公司 | Single-board test method based on multi-characteristic quantity expert fault location system |
| CN107567573A (en) | 2015-03-04 | 2018-01-09 | 马士基莱恩有限公司 | The method and system assessed for frozen products insulated container |
| CN105302657B (en) * | 2015-11-05 | 2020-12-15 | 网易宝有限公司 | Abnormal condition analysis method and device |
| CN108572308B (en) * | 2017-03-13 | 2021-06-15 | 国家新闻出版广电总局广播电视卫星直播管理中心 | Fault diagnosis method and system |
| CN107844665A (en) * | 2017-11-24 | 2018-03-27 | 青岛鸿瑞电力工程咨询有限公司 | A kind of factory's logic chart design method and logic chart |
| CN112036480A (en) * | 2020-08-29 | 2020-12-04 | 大连海事大学 | Ship refrigeration system fault diagnosis method and device and storage medium |
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Non-Patent Citations (5)
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| WinAC控制器在过程控制中的应用. 任俊杰，李媛，苏秀丽.微计算机信息，第21卷第7-1期. 2005 |
| WinAC控制器在过程控制中的应用. 任俊杰，李媛，苏秀丽.微计算机信息，第21卷第7-1期. 2005 * |
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