An error logging method for a coating plant is disclosed. The error logging method generally includes capturing an error during running of process data records for the coating plant, wherein the individual process data records are ordered according to the given time of operation of the coating plant
An error logging method for a coating plant is disclosed. The error logging method generally includes capturing an error during running of process data records for the coating plant, wherein the individual process data records are ordered according to the given time of operation of the coating plant and each of which contain various process data of the coating plant. The method may further include storage of the captured process data records, detection of a possible error condition of the coating plant, and/or production of an error code when detection of an error condition of the coating plant occurs. The various examples may also relate to storage of the error code in chronological order with the stored process data records.
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1. An error logging method for a coating plant, comprising: a) Continuously logging, in a computing device comprising a processor, process data sets of the coating plant, the individual process data sets each being attributed to certain points in coating plant operating time and each containing mult
1. An error logging method for a coating plant, comprising: a) Continuously logging, in a computing device comprising a processor, process data sets of the coating plant, the individual process data sets each being attributed to certain points in coating plant operating time and each containing multiple process data of the coating plant,b) Storing, by the computing device, the logged process data sets;c) Detecting, in the computing device, a possible error state of the coating plant;d) Generating, in the computing device, an error code when a coating plant error state is detected; ande) Storing, by the computing device, the error code time-synchronised with the stored process data sets where in the case of an error only those process data sets are stored which are logged with a predetermined time frame around the time of the error. 2. The error logging method in accordance with claim 1, further comprising saving the process data sets and error code, the saving the process data sets and error code including: a) Caching the logged process data sets in a buffer, independently of detection of an error state;b) Selecting cached process data sets which were detected with a specified lead time before detection of the error state and within a specified follow-up time after detection of the error state, and:c) Storing the selected process data sets with the error code in an error memory for later error analysis. 3. The error logging method in accordance with claim 2, wherein the follow-up time is selected from a group consisting of: a) a specified period;b) a period until correction of the error state;c) a specific period, within which a specific number of skids or components to be coated is conveyed through the coating plant,d) a specific period which comprises a certain number of conveyor cycles. 4. The error logging method in accordance with claim 2, wherein the lead time is selected from a group consisting of: a) a specified period;b) a specific period, within which a specific number of skids or components is conveyed through the coating plant, orc) a specific period which comprises a certain number of conveyor cycles. 5. The error logging method in accordance with claim 2, wherein the lead time and the follow-up time for storage of the process data sets is at least 200 milliseconds (ms). 6. The error logging method in accordance with claim 2, wherein the lead time and the follow-up time correspond to a period in which at least one skid is conveyed through the coating plant. 7. The error logging method in accordance with claim 1, wherein the error codes and the relevant process data sets for each coating plant error state are each stored in a dedicated error file. 8. The error logging method in accordance with claim 1, wherein the error code is a timestamp which indicates at the time of the error. 9. The error logging method in accordance with claim 1, wherein the error code shows a type of error detected. 10. The error logging method in accordance with claim 1, wherein storage of the process data sets and the error code takes place with temporal resolution of one of at least 0.1 millisecond (ms). 11. The error logging method in accordance with claim 1, wherein the stored coating plant process data are selected from a group consisting of: a) Component data characteristic of the coated components;b) User data, characterizing the interaction between an operator and the coating plant,c) Plant data characterizing the coating plant itself. 12. The error logging method in accordance with claim 11, further comprising comparing time curves of the logged process data sets are with specified error curves in analyzing the process data sets for detecting an error state. 13. The error logging method in accordance with claim 1, wherein the stored coating plant process data are selected from a group consisting of: a) Time,b) Sensor data, which reproduces the measurement signals from sensors,c) Colour of the coating agent currently being applied in the coating plant,d) Colour of the coating agent previously applied in the coating plant,e) Identification number of the skid currently located in the coating plant,f) Identification number of the component currently located in the coating plant, particularly a body, or the components currently located in the coating plant,g) Type of component or components currently located in the coating plant,h) Identification number of the looped main of the coating plant currently in use,i) Identification number of the colour used,j) Speed of a rotary atomizer,k) Electrical charging voltage of an electrostatic application device,l) Electrical charging current of an electrostatic application device,m) Volume of the coating agent currently being applied,n) Flow rate of the individual media, particularly flushing agents, solvents, guide air, shroud air for flat spray, knife air, envelope air, drying air, cooling air, turbine bearing air,o) Current flow of the individual air guide currents,p) Current guide air pressure,q) Current horn air flow, current horn air pressure,r) Current driving air flow, current driving air pressure,s) Paint pressure,t) Air pressure and all available air pressure sensor measurementsu) Flushing agent pressure,v) Pig positions,w) Temperatures in the coating plant,x) Moisture in the coating plant,y) Paint cabin status, particularly ventilation status, water washout status, extraction statusz) Coating plant filling levels,aa) Coating plant valve switch positionsbb) Position, speed, acceleration, torque of a painting robot,cc) Target/actual deviation of one or more of the aforementioned process data,dd) User entriesee) Brush data, movement program number of the robot,ff) Conveyor data, particularly conveyor increments and status,gg) Dryer data and status,hh) Exchange of data between the control components. 14. The error logging method in accordance with claim 1, further comprising logging the remote transmission of the data sets and the error code to a maintenance service. 15. The error logging method in accordance with claim 1, further comprising: a) Storing the process data sets and the error code on an interchangeable mass storage medium;b) Transporting the mass storage medium and the stored process data sets to a maintenance service. 16. The error logging method in accordance with claim 1, further comprising: a) Reading the stored data code and relevant process data sets;b) Visually displaying the read-out error code and relevant process data sets on a monitor. 17. The error logging method in accordance with claim 1, wherein a) the stored process data sets also reproduce the spatial position of a coating plant robot; andb) the position of the robot is graphically displayed on the screen in the visual display. 18. The error logging method accordance with claim 1, wherein a) certain process data are selected from the stored process data according to the error code; andb) only the selected process data are displayed visually. 19. The error logging method in accordance with claim 1, further comprising: a) Determining possible causes of errors and remedial measures from the stored error code and relevant process data sets; andb) Visually displaying possible causes of errors and remedial measures on a display. 20. The error logging method in accordance with claim 1, further comprising suppressing error detection within a specific period following error detection. 21. A non-transitory computer-readable data storage medium having stored thereon a computer program for performing error logging, including programming to: continuously log, in a computer comprising a processor, process data sets of the coating plant, the individual process data sets each being attributed to certain points in coating plant operating time and each containing multiple process data of the coating plant;store the logged process data sets;detect a possible error state of the coating plant;generate an error code when a coating plant error state is detected;store the error code time-synchronised with the stored process data sets;cache the logged process data sets in a buffer, independently of detection of an error state;select cached process data sets which were detected with a specified lead time before detection of the error state and within a specified follow-up time after detection of the error state; andstore the selected process data sets with the error code in an error memory for later error analysis.
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이 특허에 인용된 특허 (5)
Strauch, Robert D.; Lepper, John Mark; Martin, Wallace Anthony; Sanka, Ravi Sankar; Walker, Craig William; Wang, Daniel Tsu-Fang; Johnson, Lars William; Reinhart, Leonard Ross; Hearin, Larry G.; Solb, Computer system for quality control correlation.
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