WO1995008806A1 - Dispositif portatif de saisie de donnees servant a saisir des donnees de maintenance lors d'une tournee d'inspection - Google Patents

Dispositif portatif de saisie de donnees servant a saisir des donnees de maintenance lors d'une tournee d'inspection Download PDF

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Publication number
WO1995008806A1
WO1995008806A1 PCT/GB1994/001918 GB9401918W WO9508806A1 WO 1995008806 A1 WO1995008806 A1 WO 1995008806A1 GB 9401918 W GB9401918 W GB 9401918W WO 9508806 A1 WO9508806 A1 WO 9508806A1
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WIPO (PCT)
Prior art keywords
data
data collector
machines
tour
memory
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PCT/GB1994/001918
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English (en)
Inventor
Stephen William Mcmahon
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Diagnostic Instruments Ltd.
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Publication date
Application filed by Diagnostic Instruments Ltd. filed Critical Diagnostic Instruments Ltd.
Publication of WO1995008806A1 publication Critical patent/WO1995008806A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • G06F15/025—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators adapted to a specific application

Definitions

  • the present invention relates to data collection apparatus for use as part of a predictive maintenance system.
  • the invention relates to a hand-held data collector for use with PC-based control software.
  • the PC-based control software is used to set c up a database of points or locations to be measured during a tour or route in the plant, to trend the measurements which are made and to transfer measurement information to and from the data collector apparatus.
  • the hand-held data collector is taken out into the plant and used to gather data and the results are sent back to the PC for subsequent examination.
  • U.S. Patent No. 4,612,620 to Davis et al describes apparatus for collecting scheduled maintenance data in accordance with a predetermined schedule.
  • the apparatus includes a portable data collector which can be coupled to a PC
  • the apparatus is operable in either a data input or program mode and is coupled with a vibration transducer which is located at predetermined coded positions and data collected is stored in memory.
  • visual inspection data can be entered in the memory in the form of a numerical code along with units, designations and the like.
  • the apparatus operates in conjunction with a scheduling facility which off-loads the schedule during a transfer mode into the apparatus at the commencement of any given maintenance round.
  • the schedule serves to prompt the operator as to the sequence of data collection locations, additionally providing units, alarm threshold levels and like information.
  • the data may be off-loaded to the processing facility.
  • the apparatus includes logic which permits analysis of the type of transducer as the automatic carrying out of alarm level comparisons.
  • the hand-held instrument may be combined with a computerised predictive maintenance scheduling and data processing facility. When so combined a scheduled round of measurement procedures may be automatically transmitted to the memory of the instrument by the PC. Once this happens, the operator of the hand-held instrument receives a sequence of prompts which are read-out at the collector display as it is carried to progressive machine measurement positions. These prompts follow the predetermined maintenance schedule of the processor facility and, in the course of such activity, the operator is further provided with on-site alarm indications and the like, where appropriate. At the end of the route the data collector is again connected to the PC and the information obtained, i.e. the measurements, are uploaded to the PC Once a "route" has been set up in the PC it will typically be used many times and be transferred to and from the data collector on every such occasion.
  • a predetermined sequence of measurements as defined by the PC is normally followed but in special circumstances this can be deviated from. For example, if a particular machine is not working, then the measurements for that machine can be skipped, there is a facility in the Davis et al data collector to do this. It is necessary to set the information up on the PC because of the volume of measurements required and the number of units from which data is to be collected. The PC allows management of this information because in some situations there can be as many as 400 points from which data measurements are required and, consequently, the route is easily set up on the PC. In addition, during the scheduled round of a plant additional measuring points can be included which can be uploaded with the route measurements. These additional measurements are termed "off-tour" measurements.
  • the whole thrust of the aforementioned Davis et al patent is towards providing the operator with a predetermined maintenance schedule so that the operator follows the schedule as downloaded to the hand-held unit and takes measurements of each machine in turn.
  • a significant disadvantage of the Davis et al apparatus is that the operator is constrained to carrying out the tour of the plant in the same sequence as is downloaded, i.e. the predetermined maintenance schedule. This may not be the most efficient way of conducting a particular tour and can lead to lost time and does not cater for situations wherein the machine environment has been changed, for example, the machines have been relocated in a particular plant. Furthermore, this apparatus does not allow the operator in the field the flexibility of deciding how best to conduct the tour once he has inspected the plant.
  • An object of the present invention is to obviate or mitigate the aforementioned disadvantages of prior art structures.
  • a further object of the present invention is to provide a hand-held data collector which allows the user in the field to create the desired sequence with the flexibility of changing the sequence to ensure efficient collection of field data.
  • a data collection system which includes a hand-held data collector and PC-based control software.
  • the PC-based control software provides a grouping of machines which is not ordered in a predetermined selection or measurement sequence.
  • the grouped information is downloaded from the PC to the data collector and, once in the data collector, the user lists or rearranges the grouping as desired using the keys of the data collector to specify a desired sequence in the field. This means that the user is able to create the sequence of measurements "live", that is on tour or during the route. Also, the user can store the current sequence in memory.
  • a data collection system for collecting maintenance data from a plurality of machines, said data collection system comprising: computer processing means for setting up a database of points to be measured on a particular tour, and to transfer measurement information to and from data collection means, a hand-held data collector unit having a housing and connector means for enabling said hand-held data collector unit to be operationally coupled to said computer processing means, said hand-held data collection means having visual display means for displaying visual information about said tour and about a particular machine, keyboard means operable by a user for collecting data from each machine in turn and for arranging the sequence of measurements to be made during the tour and data collector memory means for storing the list of machines to be measured and for storing measurement data from each machine measured, the arrangement being such that in use, when said hand-held data collector is coupled to said computer processing system a list or grouping of machines to be measured is downloaded from said processor memory to said data collector memory, the user actuates said keyboard means to organise the grouping or list of machines stored in said
  • said hand-held data collector unit includes slot means for receiving a memory card or disk with a list of points to be measured,- and means for reading said memory card or disk to transfer said information to said data collector memory, means for transferring measurements made during said tour to said memory card or disk, said memory card being removable and connectable to said computer processing unit whereby a hardwire link between said data collector and said computer processing unit is not required.
  • the list of machines can be downloaded by a removable memory card or disk and in the same way the measurements taken during the tour can be uploaded to the PC.
  • said grouping or listing of machinery to be measured is arranged in an alphabetical or numerical list.
  • a hand-held data collector for use by an operator as part of a predictive maintenance system, said hand-held data collector comprising, a housing, a keyboard disposed in the housing, a visual display for displaying machine and measurement information, the hand-held data collector being adapted to be connected to a computer processing apparatus, said data collector having memory means for receiving a grouping or list of machines to be monitored and for storing maintenance data from said machines which are monitored.
  • said means for inputting data to said memory means is a removable memory card which is first programmed with a list or group of machines in the said computer processing unit and then inserted into a receiving slot in said data collector.
  • said memory card receives said maintenance data from said data collector and can be removed from said data collector and inserted, into said computer processing apparatus where bias and maintenance data can be retrieved for trend analysis.
  • a method of collecting data from a plurality of machines for use in a predictive maintenance system comprising the steps of, providing a database of machines to be measured, transferring from the database a list of machines to be measured to a hand-held data collector, the list of machines not being arranged in a predetermined measurement sequence, arranging the list or group of machines to be measured into a created tour sequence, conducting a tour of the machines in accordance with the created sequence and obtaining measurement data from each of said plurality of machines measured in accordance with said created tour sequence, storing the created tour sequence with the corresponding measurement data from each machine in the memory of said data collector, and transferring said created measurement data from said data collector memory to computer processing means.
  • the method includes the step of storing the arranged list in memory for recall at a later time.
  • said database of machines to be measured is a grouping of machines in a random order.
  • the machines are listed numerically or alphabetically.
  • said data is downloaded and uploade' 3 between a computer processing means to a hand-held d ca collector by a hardwire link.
  • the data is transferred between said portable data collector and said computer processing means by a removable memory card.
  • Fig. 1 is a diagrammatic view of a data collection system in accordance wi ** -.h an embodiment of the present invention
  • Fig. 2 is a block diagram of the circuitry used in the hand-held data collector shown in Fig. 1;
  • Fig. 3 is a more detailed block diagram of the analogue section of the circuitry referred to in Fig. 2;
  • Fig. 4 is a flowchart of the RS232 communication protocol used in transferring data between the computer processing unit and the hand-held data collector shown in Fig. 1;
  • Fig. 5 is a schematic diagram of a control packet used in the transfer of data between the processing unit and the hand-held data collector;
  • Fig. 6 is a flow diagram of the sequence of operations which occurs when the data collector is switched on;
  • Fig. 7 is a flowchart of operations which occur in the data collector when the tour button is pressed
  • Fig. 8a is a representation of an order machines screen for the PLACE mode and Fig. 8b is a similar representation of an order screen but for the PICK mode;
  • Fig. 9 is a display of the ID screen
  • Fig. 10 is a flow diagram of the sequence of events used to create the ID screen shown in Fig. 9;
  • Fig. 11 is a flow diagram of the sequence of events for the ID screen using the ⁇ -P key
  • Fig. 12 is a similar ID screen as for Fig. 11 using the P-> key;
  • Fig. 13 is a flow diagram of the data acquisition steps which occur on actuation of the read key
  • Fig. 14 is a flow diagram of the steps involved in generating a review screen
  • Fig. 15 is an example of a display of a review screen with machine ID on;
  • Fig. 16 is a flowchart and sequence of events used for creating an off tour screen
  • Fig. 17 depicts an example of an off tour-screen
  • Fig. 18 depicts an example of a notes screen.
  • FIG. 1 of the drawings depicts a data collection system 20 in accordance with an embodiment of the invention which consists of a hand-held PL302 data collector, generally indicated by reference numeral 22, shown coupled by a RS232 hardwire serial link 23 to a computer processing station in the form of a PC generally indicated by reference numeral 24.
  • the data collector 22 is shown coupled to a measurement sensor 26 which can be of any suitable form such as a vibration sensor, pressure sensor, temperature sensor or the like for logging data from a plurality of machines.
  • a database of all the measurement points in a particular plant is created on the computer 24.
  • Each measurement point is specified in terms of its location in the plant and a plant consists of a number of trains where each train consists of one or more machines and each machine is made up of one or more points.
  • Each measurement point in a plant is therefore uniquely identified as "train:machine:point”.
  • the sensing includes specifying what is being measured, for example acceleration, velocity, volts, pressure temperature, vibration, transducer sensitivity and other data collector settings.
  • the plant database is generally created once per plant and is normally updated when new machines are installed or when measurement parameters require to be changed.
  • the database is created in the PC by the user because there is flexibility to identify readily the various parameters required for the machines which can be up to 400 in number.
  • the next stage in obtaining measurement data is for the user to create on the PC 24 a measurement set.
  • the user selects the machines from the plant which he wishes to be measured. No measurement order is implied in the selection and several measurement sets may be created from the same plant. It will be understood that once created a measurement set can be used on many occasions with some minor editing.
  • the points in the set are transferred from the PC 24 to the data collector 22 along the RS232 serial link 23.
  • the points which make up the measurement set are transferred in an arbitrary, for example random, alphabetical or numerical order.
  • there is no predetermined schedule or order transferred with the measurement points as when they are received by the hand-held data collector 22 the user is free to group or create an order in which the data is collected. Points within a machine are grouped together but the order in which the machines is transferred is unimportant.
  • the RS232 serial link 23 is disconnected and the user then takes the data collector 22 into the plant.
  • the user wishes to initiate data collection he displays firstly the "order machines" screen on the display when the user selects a measurement set. This screen is used by the user to select the order in which measurements will be taken. Thereafter the user chooses the order in which the machines will be visited and the order of points within the machines is as downloaded to the data collector. The order chosen by the user is stored with the measurement set and the data collector and is displayed as the default selection whenever the, "order machine" screen is used. It will be understood that default order is simply the order of download.
  • the user may then gather data. This operates as with a conventional PL302 data collector with the data collector displaying details of the next point to be measured.
  • the data collector uses the selected collection order to determine what machine should be displayed next.
  • the data collector uses the selected machine order instead of the order of download when determining which point to display next.
  • skipping machines the user is shown details of the first point in each machine.
  • an extra "select machine” screen can be displayed whenever the next point is on a different machine from the current point. This would occur after gathering data at the last point on the machine, when skipping points forward from the last point on the machine or backward from the first point on the machine and also when skipping machines. This screen would show a list of machines as ordered in the "order machines” screen and would enable the user to manually override this selection if desired.
  • Fig. 2 of the drawings which is a block diagram of the digital hardware in the PL302 data collector 22.
  • the digital hardware includes an 80C186 microprocessor, indicated by reference numeral 30, which handles the memory storage display and housekeeping functions and a Motorola DSP 56001 processor 32 which is used to perform the various signal processing tasks.
  • Battery-backed static RAM is used to store measurement and user configuration data.
  • the battery-backed static RAM consists of 256 kbytes of system memory 34, 512 kbytes of user memory and 384 kbytes of shared user memory which can be switched in and out of the 80C186 memory space. This can be accessed by the Motorola microprocessor DSP56001 also. Also part of this page memory space is the PCMCIA memory card interface which can support up to 4 megabytes of memory.
  • the RS232 interface 40 is coupled via a universal asynchronous receiver transmitter (UART) 42 to the memory 34 and this implements the interface for data transmission and code upgrades.
  • UART universal asynchronous receiver transmitter
  • the digital section includes a battery charge circuit 44 coupled to a nickel cadmium battery 46 and a power supply management circuit 48.
  • the display is under the control of the 80C186 microprocessor 30 and includes an LCD controller 50 for LCD display 52, and LCD back-light circuit 54.
  • a video memory 56 is also coupled to the LCD controller 50.
  • the power supply circuitry 48 controls the power on and low voltage reset of the 80C186 microprocessor 30, the battery-back up of the static RAM 34 and the trickle charge of the internal nicad battery 46 and the operation of the unit 22 from an external 10V d.c. supply 58.
  • All the analogue and digital peripheral devices are input/output mapped and this comprise a real-time clock 60 which is used to time stamp data records, a keypad interface interrupt controller, which is part of the 80C186 microprocessor which handles various interrupt sources, a DSP host port which is actually the Motorola processor host control interface, a page register for the memory/PCMCIA page control register and analogue control latches for the front-end analogue board control registers.
  • the 80C186 microprocessor 30 uses a 16 bit data bus which is connected to all memory and peripherals. Any 8 bit peripheral is connected to the low 8 bits of this bus.
  • the 12 bit ADCs 94,96 are connected to the high 12 bits of the 16 bit data bus.
  • the DSP56001 32 uses a 24 bit data bus.
  • the ADCs 94,96 are connected to the most significant 12 bits of this bus.
  • the 384K of shared memory which is used by the DPS56001 is arranged 24 bits wide.
  • the 80C186 reads this as 32 bit wide memory (i.e. as two successive 16 bit words) , with the low 8 bits of the 32 bits being unused.
  • the logic which performs this mapping also swaps the Motoroloa byte order to the intel byte order allowing 24 but Motorola data words to be read as the most significant 24 bits of a 32 bit intel long data word.
  • the analogue circuit 62 comprises two analogue data acquisition channels 64, 66, one external trigger input 68 and one external clock input 70.
  • the analogue channels 64,66 each have their own AC/DC and ICP interface coupling option ⁇ 72,74 respectively, analogue integrators 76,78 respectively and programmable amplifiers 80 and 82 which have gains selectable from 1 to 1,000.
  • the channel 1 signal path 64 has a selectable analogue high-pass or envelope filters 84,86 respectively with a choice of bandwidths.
  • the channel 2 signal path 66 has only high-pass filters 86.
  • Each channel 64, 66 has its own analogue and switched capacitor anti-aliasing filters 88,90 respectively and 12 bit analogue to digital convertors (ADC) 94,96 respectively. All filter and gain selections in each channel are performed from the 80C186 microprocessor through various control latches and digital analogue convertors (DACs) (not shown).
  • the ADCs 94,96 interface to the Motorola DSP 56001 digital signal processor 32 via a twelve bit digital bus 98 shown in Fig. 2 of the drawings.
  • the trigger input 68 comprises input protection circuitry 100 and a ⁇ 10V or ⁇ 25V input range selector generally indicated by reference number 102.
  • a digital analogue convertor (DAC) 104 sets the trigger threshold and a comparator 106 produces a digital output once a trigger input crosses this threshold.
  • An exclusive OR gate (XOR) is used to allow the 80C186 microprocessor to select a positive or negative slope 108, 110 respectively as a required trigger input. Once the trigger occurs the acquisition clocks 112 are guaranteed to start within the precise interval.
  • the clock input 70 is available which can be used in place of internally generated sample-rate clock.
  • the route or tour sequence is described, in this embodiment, in terms of single channel measurements and channel 64 is used to achieve this.
  • the second signal channel 66 is used, in this embodiment, in the analyser mode only and will not be described further. However, it will be appreciated that two or more channels could be used to receive measurements. It will be understood that the trigger input or clock input are external inputs for synchronising measurements.
  • XFER accesses the data transfer screen A. Routes may be downloaded to the data collector using an RS232 link, or may be written directly on to the PCMCIA memory card.
  • a packet based protocol is used to transfer data between the PL302 and a PC.
  • the PC is in control of the transfer process and sends down a sequence of packets. These packets fall into two types - queries and commands. Query packets request the data collector to return information, again in a packet form, for example a request may be made for all spectral data which has been gathered as part of the current route.
  • Control packets allow the PC to configure the data collector, for example to clear the existing contents of memory and store a sequence of measurement points as a new route.
  • the user may gather RS232 settings and may also abort data transfers.
  • Fig. 4 of the drawings is a flowchart of the RS232 communication protocol used in transferring data between the PC24 and the data collector 22 as shown in Fig. 1.
  • the packet is first read and checked to see whether it is a valid packet. If the packet is not a valid packet a NAK signal is sent which has an ASCII character value of 6. The valid packet is ascertained using a check sum/end character. If the packet is valid it is interpreted to see whether the packet is a control packet. As will later described, if the packet is a control packet the requested control functions are performed and if the operation is successful ACK ASCII signal is sent to the PC.
  • NAK ASCII character is sent to the PC. If the packet is not a control packet then an ACK ASCII character is sent which checks whether further data is to be sent. This continues until all the data is sent and the operation is successful.
  • Fig. 5 of the drawing is a schematic diagram of a control packet for configuring the data collector.
  • the control packet introduces certain fields to allow text for train IDs to be set up so that the train and machine ID is used to determine whether a new machine is requested.
  • some fields are for information only for example field 7.5 which identifies 16 characters of text and field 7.3 which relates to the point ID.
  • Other fields control or configure the measurement at the point for example point type identified 7.9 on hardware settings at 7.10 and sensitivity 7.20.
  • control packet sent from the PC sets the PL302 up for subsequent measurement as will later be described in detail.
  • packet There is another type of packet known as the host request/query packet which is a request from the PC to the PL302 to send information back to the PC and there is a third type of packet, known as a data packet, which the is PL302s response to the host request/query packet.
  • the data collector goes through various operations and internal procedures to create the various screens for the user in order to create a tour sequence or route to be followed in the plant. This is best explained with reference to various screens which are created for the user so that the reader can best understand the operation of the data collector during a tour.
  • Fig. 6 of the drawings is a flow diagram of the sequence of operations which occurs when the data collector is switched on.
  • the software first performs a brief self test of the flash memory contents and the RAM 34.
  • a 512 kilobyte portion of the battery backed static RAM 35 is treated as a diskdrive by the software. This "disk" is checked to ensure that it has been formatted then its contents are searched for any routes that might have been stored. If a PCMCIA memory card is detected then its contents is similarly checked. This list is depicted as box 114 on Fig. 6.
  • a list of route names is built-up and the core screen depicted by reference number 116 allows the user to select one of these routes for further operations.
  • the up/down keys are used to move the cursor from one route to another in the list where the left/right keys move through the list one page at a time.
  • a status box is updated with each move to show some information in the currently selected route, such as the number of points in the route, the number of points which remain to be measured in the route, and the point number within the route which was last accessed. If the user has not selected a route before then this number is set to the first point in the route.
  • the set up key is used to rebuild this list of routes and may be used anywhere and may be used from anywhere within the data collector menu structure.
  • the core screen 116 is shown with a heavy boundary 117 and all other screens are depicted in this way; this is what the user actually sees as a screen.
  • the other box 119 displayed is not seen by the user but are internal to the operation of the data collector.
  • Fig. 7 of the drawing is a flowchart of the operations which occur in the data collector when the TOUR button is pressed.
  • Fig. 7 will also be described combination with Figs. 8a, 8b and Fig. 9.
  • the TOUR key allows access to the usual method of performing the measurements which have been set up in the route.
  • the user is firstly presented with the select order or order machines screen 120. This screen displays a list of train and machine names for each machine in the route.
  • the left/right keys 127a,127b (Fig. 1) move through this list one at a time while the up/down keys 129a and 129b move from machine to machine.
  • This list is created to form a new route from the download data. However if the route has been used within the data collector before and machine orders were stored in memory by the user, the these are available for re-use.
  • the data collector allocates some space for the storage of ordering information. This is not immediately erased when the routes are cleared from the instrument and, if the route name matches the route name of one of the previously stored lists, then the user will be prompted as to whether he wishes to use one of these previously stored lists or reorder from scratch.
  • multiple configurations can be saved for a single route, allowing different operatoi a to use their own preferences for a route measurement order.
  • the pick key is used to choose the machine highlighted by the cursor.
  • a machine has been 'picked 7 its name will be displayed in the select box above the softkeys.
  • the cursor then changes from a reverse video line to two arrow characters at the beginning and end of the train/machine name.
  • the PICK softkey changes to PLACE.
  • the cursor can then be moved to another position in the list (using the cursor keys) and the PLACE softkey used to move the selected machine to the new position in the list.
  • PLACE is pressed the selected or 'picked ' machine is placed at the current cursor position.
  • the softkey changes back to PICK, the select box is cleared and the cursor changes back to the normal reverse video line.
  • This mode allows the user to save the current order list in the PL302's internal memory.
  • a pop-up menu appears:
  • This user uses the UP/DOWN keys to select the index number #1 to #5 and presses OK to save the current order list with this index. If an order list was previously stored under the index a message "List #n exists, press ENTER to overwrite" appears. If ENTER is pressed, the current list is saved overwriting the previous one, otherwise the save is aborted.
  • the method of marking which machines are selected may be made by displaying the machine name in a separate "selected" window as best seen in Fig. 9 or by displaying a special symbol beside the machine name in the list.
  • Fig. 10 is a flowchart of steps involved when the M-> key is actuated, i.e. when the data collector skips to the next machine without collecting data at the current point.
  • Figs. 11 and 12 are flowcharts of activity when softkeys ⁇ -P,P-> are pressed, that is when the data collector skips to back to the previous point or to the next point without collecting data from the current point respectively.
  • the user then proceeds to take the data collector to the machines in the route, in the order created, and then proceeds to take measurements from each machine on the route if desired.
  • Data acquisition i.e. measurements are taken using the READ key and this will be best explained with reference to the flowchart shown in Fig. 13 of the drawings.
  • the data collector uses the selected order and displays details of the next point to be measured.
  • the READ key performs the measurement as specified in the point set up. This set allows, for example, the transducer sensitivity to be set, the measurement type (G's, mm/s, mils, V, etc.) to be chosen.
  • the measurement process is done in two stages. Firstly an overall measurement is taken and displayed on a continuously updated bar graph display. The actual voltage range used is altered to the amplitude of the signal being measured, and the results are scaled based on the measurement type and transducer sensitivity to the specified full scale range in the chosen units. The user has to wait several second for the measurement to settle at which point he may accept the measurement and move on the second stage, the signature collection if specified.
  • time or spectral signatures may be acquired.
  • the input voltage range is fixed at the value chosen during the overall measurement.
  • the data is gathered, processed and displayed as an amplitude verses time or frequency plot. Cursor options are available to allow the user to inspect the data.
  • the OK key causes the results to be saved and advances to the next point ID screen.
  • the user can skip measurement points at both the point and machine levels.
  • the data collector uses the selected machine order rather than the order of download when determining which point to display next.
  • the user is shown details of the first point on each machine.
  • an extra "select machine” screen may be displayed whenever the next point is on a different point from the current point. This would occur after gathering data at the last point in a machine, when skipping points forward from the last point on a machine or backward from the first point on a machine, and when skipping machines.
  • This list would show a list of machines as ordered in the "order machines" screen, and would enable the user to manually override this selection, if desired.
  • Fig. 14 is a flow diagram of the steps involved in generating a review screen 130.
  • the review type screen allows the review screen to be used with three different lists of points; the current route-all-points 132; missed points only 134 or gathered points 136whose reading exceeds an alarm threshold. This is best seen in Fig. 14 of the drawings. Exiting from the review screen 130 returns to the core screen 116. The list of points to be displayed on the review screen is best shown by the screen in Fig. 15 with the machine ID on. The list of points displayed is built-up in currently selected order of machines.
  • the review screen 130 gives a different view on the route (and any off-tour points) . Points within the route are listed page by page and the left/right keys are used to go back/forward through these pages while the up/down keys position a cursor over the currently selected points.
  • the machine and point names are shown on the screen list in Fig. 15. Further details on the point are displayed using the ID ON softkey. Once this information is displayed a further press of the soft key labelled ID OFF will clear it.
  • the SIG softkey when pressed, will graphically display this.
  • Various cursor options are provided allowing the user to inspect this data in detail.
  • the OK key at this stage returns to the review screen and the READ key allows the measurement to be taken as in TOUR or OFF TOUR mode.
  • the ESC key returns to the review screen.
  • Fig. 16 of the drawings is a flowchart of the OFF TOUR screen and to Fig. 17 which depicts the contents on the OFF TOUR screen.
  • This screen is selected by the user actuating button 122 shown on Fig. 6 which deletes the core screen and brings up the OFF TOUR screen 140.
  • the OFF TOUR screen 140 allows the user to set up measurement points within the data collector, to perform the selected measurement and store the results as unscheduled measurements that are part of the currently selected route. In other words, this allows the user a way of appending extra data to the route.
  • There are two main stages involved in the OFF TOUR screen The first stage is the template editing stage which is the setting up of the point to be measured and the second stage is the measurement stage, as already described with reference above using the READ key.
  • the template editing stage consists of setting of OFF TOUR template to a last used point from the route. This allows the user to easily replicate a measurement made in the route mode and to selectively adjust measurement parameters from this set up.
  • the STORE softkey 142 saves the settings without gathering any data, whereas the READ key 144 gathers and processes data before storing the settings and data.
  • the OFF TOUR template is advanced to the next stored point. If no next point exists, then a new template is created by copying the last settings and incrementing the point number.
  • the delete (DEL) softkey 146 is used to delete the settings and data associated with the current OFF TOUR point.
  • the ⁇ -P and P-> keys 148,150 are used to move through a stored sequence of OFF TOUR points.
  • Fig. 18 of the drawings depicts the display showing the NOTE screen.
  • the data collector 22 provides the facility to take up to six coded notes at any single measurement point.
  • the NOTE screen is accessed by pressing the NOTE softkey 121 where the user is presented with the first of several pages of user-defined coded notes shown on the screen example on Fig. 19.
  • the UP/DOWN keys are used to index through the coded notes one at a time. However, if the user types in the number of the coded note he can access that code note directly from the keypad. Once a particular coded note has been reached, either by the cursor or by entering the number, then pressing the ENTER hardkey will store that coded note against the current measurement point. For example, if there was abnormal noise at the particular measurement point, the user would press key 5 and this would appear against that measurement point. Once a coded note has been selected, a symbol appears on the left hand side of the display against that code indicating the selection.
  • the ENTER hardkey is implemented in the toggle fashion, that is, a subsequent press of the key deletes the coded note from the measurement point.
  • the ESC softkey is used to exit the NOTE screen and return to the previous screen.
  • the data collector also includes a utilities key 124 (Fig. 6) which allows the user to specify several display and data collection options including the choice of units (Hz or CPM) and whether the collector updates the display after each average or only when all averages are complete. This mode returns to the core screen 116.
  • a utilities key 124 Fig. 6 which allows the user to specify several display and data collection options including the choice of units (Hz or CPM) and whether the collector updates the display after each average or only when all averages are complete. This mode returns to the core screen 116.
  • the principal advantage of this invention is that it allows the user flexibility and editing the TOUR sequence in the field.
  • the user is not constrained to a predetermined schedule and this means that the user is able to create a TOUR which caters for situations where the machine environment has been changed, for example, machine relocation or machine addition or removal.
  • the data collector can be used with any type of personal computer.
  • Personal computer includes, but is not limited to, lap-top, palm-top and notebook sized computers. In fact, any computer processing unit in which data bus information can be entered for subsequent transfer to a hand-held data collector.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

L'invention concerne un système de saisie de données (20) comprenant un collecteur de données (22) destiné à être connecté à un poste d'ordinateur de traitement (PC) (24), lequel est doté d'un logiciel établissant un groupement des machines à partir desquelles les données doivent être saisies, ces données n'étant pas rangées dans une séquence prédéterminée ou de mesure. L'information groupée est téléchargée à partir du PC (24) dans le collecteur de données (22) et, une fois qu'elle se trouve dans celui-ci, l'utilisateur dresse la liste ou effectue un réagencement du groupement des machines, comme il le désire, en utilisant les clés du collecteur de données pour spécifier une séquence souhaitée dans la zone. Cette opération permet à l'utilisateur de créer la séquence de mesure 'en direct', c'est-à-dire pendant la tournée d'inspection ou en suivant un itinéraire d'inspection.
PCT/GB1994/001918 1993-09-18 1994-09-05 Dispositif portatif de saisie de donnees servant a saisir des donnees de maintenance lors d'une tournee d'inspection WO1995008806A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9319360A GB9319360D0 (en) 1993-09-18 1993-09-18 Portable data collection apparatus for a collecting maintenance data from a field tour
GB9319360.5 1993-09-18

Publications (1)

Publication Number Publication Date
WO1995008806A1 true WO1995008806A1 (fr) 1995-03-30

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PCT/GB1994/001918 WO1995008806A1 (fr) 1993-09-18 1994-09-05 Dispositif portatif de saisie de donnees servant a saisir des donnees de maintenance lors d'une tournee d'inspection

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GB (1) GB9319360D0 (fr)
WO (1) WO1995008806A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996035196A1 (fr) * 1995-05-01 1996-11-07 Minnesota Mining And Manufacturing Company Systeme automatise pour parc de panonceaux
WO1998028599A1 (fr) * 1996-12-12 1998-07-02 Prüftechnik Dieter Busch AG Systeme de surveillance pour appareils a excitation par oscillations
GB2329983A (en) * 1997-08-20 1999-04-07 Alasdair Macleod Portable device for monitoring output of measurement and control sensors
EP0777199A3 (fr) * 1995-11-30 1999-10-13 Neon Industrie Urbane Einrichtungen GmbH Procédé et système de gestion des supports de panneau publicitaire espacés
EP0999433A2 (fr) * 1998-11-06 2000-05-10 Prüftechnik Dieter Busch Ag Dispositif et procédé d'acquistion des signaux des vibrations et/ou de son structurel
DE10253564A1 (de) * 2002-11-15 2004-05-27 Embigence Gmbh Verfahren zur Erkennung und Überwachung von Betriebszuständen eines Maschinenprozesses mit Geräuschdaten

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440254A1 (de) * 1984-11-03 1986-06-05 Otto Tuchenhagen GmbH & Co KG, 2059 Büchen Verfahren und anordnung zur datenvorgabe und datenerfassung bei der milchuebernahme aus behaeltern verschiedener lieferanten in einen sammelbehaelter
US4612620A (en) * 1983-06-06 1986-09-16 Ird Mechanalysis, Inc. Apparatus for collecting scheduled maintenance data
EP0436961A2 (fr) * 1990-01-10 1991-07-17 Wolfhard Prof. Dr.-Ing. Lawrenz Appareil de traitement de données

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612620A (en) * 1983-06-06 1986-09-16 Ird Mechanalysis, Inc. Apparatus for collecting scheduled maintenance data
DE3440254A1 (de) * 1984-11-03 1986-06-05 Otto Tuchenhagen GmbH & Co KG, 2059 Büchen Verfahren und anordnung zur datenvorgabe und datenerfassung bei der milchuebernahme aus behaeltern verschiedener lieferanten in einen sammelbehaelter
EP0436961A2 (fr) * 1990-01-10 1991-07-17 Wolfhard Prof. Dr.-Ing. Lawrenz Appareil de traitement de données

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996035196A1 (fr) * 1995-05-01 1996-11-07 Minnesota Mining And Manufacturing Company Systeme automatise pour parc de panonceaux
AU692388B2 (en) * 1995-05-01 1998-06-04 Minnesota Mining And Manufacturing Company Automated sign inventory system
EP0777199A3 (fr) * 1995-11-30 1999-10-13 Neon Industrie Urbane Einrichtungen GmbH Procédé et système de gestion des supports de panneau publicitaire espacés
WO1998028599A1 (fr) * 1996-12-12 1998-07-02 Prüftechnik Dieter Busch AG Systeme de surveillance pour appareils a excitation par oscillations
US6233527B1 (en) 1996-12-12 2001-05-15 Pruftechnik Dieter Busch Ag System for monitoring units excited by oscillations
GB2329983A (en) * 1997-08-20 1999-04-07 Alasdair Macleod Portable device for monitoring output of measurement and control sensors
EP0999433A2 (fr) * 1998-11-06 2000-05-10 Prüftechnik Dieter Busch Ag Dispositif et procédé d'acquistion des signaux des vibrations et/ou de son structurel
EP0999433A3 (fr) * 1998-11-06 2007-06-13 Prüftechnik Dieter Busch Ag Dispositif et procédé d'acquistion des signaux des vibrations et/ou de son structurel
EP1990616A2 (fr) 1998-11-06 2008-11-12 Prüftechnik Dieter Busch Ag Dispositif et procédé d'enregistrements de signaux oscillants et/ou de signaux de bruits de corps
DE10253564A1 (de) * 2002-11-15 2004-05-27 Embigence Gmbh Verfahren zur Erkennung und Überwachung von Betriebszuständen eines Maschinenprozesses mit Geräuschdaten

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