CN2921909Y - Cold-storing container micro controller fault diagnosing hardware system - Google Patents
Cold-storing container micro controller fault diagnosing hardware system Download PDFInfo
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- CN2921909Y CN2921909Y CN 200620086011 CN200620086011U CN2921909Y CN 2921909 Y CN2921909 Y CN 2921909Y CN 200620086011 CN200620086011 CN 200620086011 CN 200620086011 U CN200620086011 U CN 200620086011U CN 2921909 Y CN2921909 Y CN 2921909Y
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Abstract
The utility model discloses a cold-storing container micro controller fault diagnosing hardware system, comprising a computer, wherein, a PLG is configured in the computer as an input/output interface, and the computer is connected with the CPU board in a micro controller being tested and an I/O interface board. The hardware of the system can be suitable for the online test on the micro controller. Relying on the utility model and according to practical requirements, a corresponding software library can be configurate and established to make the maintenance experience of cold-storing container control systems, automatic monitoring technology and computer information technology integrated into a whole which and makes the automatic and software arrangement and draw up of current tedious manual test and the extremely high requirements of professional intelligence and experience to maintenance expert, so as to greatly improve the maintenance ability and efficiency of maintenance personnel.
Description
Affiliated technical field
The utility model relates to cold-storage container micro controller, and is 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 utility model is to solve the above-mentioned technological deficiency that prior art exists, and a kind of cold-storage container micro controller fault diagnosing hardware system is provided, and main task is to propose the hardware composition of this system.Above-mentioned hardware is formed by being equipped with corresponding function software etc. and can be suitable for microcontroller is tested and fault diagnosis automatically.
Its technical solution is:
A kind of cold-storage container micro controller fault diagnosing hardware 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.
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.
In the utility model, 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, can with the utility model support, 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 a kind of embodiment structural principle schematic block diagram of the present utility model, shows its chief component and corresponding relation thereof.
Fig. 3 is for providing wind pushing temperature sensor (STS) the electric signal principle schematic of software control to microcontroller.
Below in conjunction with accompanying drawing the utility model is described:
Embodiment
The utility model has mainly been 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.
In the utility model, 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 that 10K resistance is connected with 100K is variable-resistance between microcontroller terminal ECA1, the ECA2, at this moment, can manually rotate STS 100K 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, can in computing machine of the present utility model, 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, also can in computing machine of the present utility model, have the function storehouse of running status under the various normal or failure situations of simulation frozen products insulated container.
5, equip function and the operation that above-mentioned every the utility model 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.Light emitting diode process flow diagram, digital demonstration, operation push-button or the like also can be set on the system operation table top, and make it that identical demonstration be arranged on the CRT interface.
Need to prove, 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 the utility model, improve its peripherals (parts), the establishment support software satisfies actual needs better.
Claims (2)
1, a kind of cold-storage container micro controller fault diagnosing hardware system comprises computing machine, it is characterized in that: 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.
2, cold-storage container micro controller fault diagnosing hardware 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086011 CN2921909Y (en) | 2006-06-19 | 2006-06-19 | Cold-storing container micro controller fault diagnosing hardware system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086011 CN2921909Y (en) | 2006-06-19 | 2006-06-19 | Cold-storing container micro controller fault diagnosing hardware system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921909Y true CN2921909Y (en) | 2007-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620086011 Expired - Fee Related CN2921909Y (en) | 2006-06-19 | 2006-06-19 | Cold-storing container micro controller fault diagnosing hardware system |
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| Country | Link |
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| CN (1) | CN2921909Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344497B (en) * | 2007-08-02 | 2010-10-13 | 上海海事大学 | Thermal performance integrated control system of intelligent watercraft refrigerated container |
-
2006
- 2006-06-19 CN CN 200620086011 patent/CN2921909Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344497B (en) * | 2007-08-02 | 2010-10-13 | 上海海事大学 | Thermal performance integrated control system of intelligent watercraft refrigerated container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |