Guralp-systems Scream Manual do Utilizador

Scream! 4.5Seismic Monitoring SoftwareUser guidePart No. MAN-SWA-0001Designed and manufactured byGüralp Systems Limited3 Midas House, Calleva ParkAlde

Scream! 4.5Once fully installed, the application should be started by with thecommand /{install_path}/scream-4.5/scream. Please seeSec

Scream! 4.58.6.2 WRITE-ONCEInstructs the digitiser to stop writing data to the Flash memory when itis full, and to switch to DIRECT mode automatically

User guide9 Recording and playbackScream! allows you to record all incoming data and store it on thelocal hard disk. To do this, you should select th

Scream! 4.5The upper part of this pane allows you to instruct Scream! to recordvarious streams automatically. Scream! will start recordi

User guidecreated the files itself. If you put your own files in Scream!'sdata directory, then they are at risk of being deleted.• If Stream B

Scream! 4.5• YYYY the year number (e.g. 2003),• M the month number (1 – 12),• D the day of the month (1 – 31),• H the hour (0 – 23),• N the minute (0

User guideback-slash (\) character under Windows or the solidus (/) underLinux.For example:T\YYYY_MM_DD;HHhNNmSSs will give file

Scream! 4.5Granularity : Allows you to decide how large files are allowed tobecome before a new one is started, for three different t

User guideformat, and convert to UFF as required using the tools provided (seebelow).Files in UFF format must represent a contiguous period of time.

Scream! 4.5Data are stored in 4K blocks with Motorola byte order, using Steim-1compression. If a discontinuity is detected in the in

User guidewhere SYSTID is the System ID, STREAM is the Stream ID, SERN is theserial number, SSS is the desired station name, CCC the channel code,NN i

User guide3 The main windowWhen you start Scream!, you will be shown an empty main window:Scream! is now ready for you to start adding data sources.3.

Scream! 4.5sta: or KSTNM: Sets the KSTNM (station name) header field.chan: or KCMPNM: Sets the KCMPNM (component name) header field.type: or KINST: Se

User guide9.2.5 GSE file formatScream! supports recording in the GSE 2.0 format (cm6 sub-format)using the same rules for file and directory names as f

Scream! 4.5The specifications you can use are sta:, chan:, wfid:, calib:,calper:, type:, segtype:, and commid:Each specification sets th

User guideYou can also select directories and drag them into Scream!'smain window. Scream! will replay all the GCF files it finds inthat d

Scream! 4.52. The main window will change to include the file(s) youselected:3. Select streams from the files in Scream's

User guideAlternatively, click the Block step button to replay the filesone block at a time.7. Open Waveview windows as required on th

Scream! 4.54. The streams will appear in Scream!'s main window as a group,and the Replay Control window will open; you can now replaythe files as

User guide• To record data, select File SCSI Tape Record Data→ → . All datasubsequently received by Scream! will be recorded onto

Scream! 4.5• If your acquisition equipment only has FTP access to thecomputer running Scream!, you can gather data into GCF filesand

User guide10 Printing options10.1 Page printoutThe simplest way to print from Scream! is in page mode, using youroperating system's printer drive

Scream! 4.52. The serial ports available to Scream! are listed in the table.Identify each port, and the instrument connected to it.I

Scream! 4.52. Choose Auto-Print… and tick Enable Auto-Print3. If you want print-outs in black and white, tick Monochrome.4. In the three boxes below,

User guide10.1.2 Automatic screen-shotsYou can save screen-shots from a Waveview window at regularintervals. These can be saved to a

Scream! 4.56. Ticking Null before capture zeroes all unlocked streamsimmediately before taking the screen-shot (equivalent toc

User guide1. Choose File Setup… → to display the Setup window. ChoosePrint.This window only applies to continuous mode printing; for pagemode

Scream! 4.5If you select When Change, the label will be printed wheneverthat attribute of the controlling Waveview window changes, i.e.the Stream ID

User guideprinting, so that the scale and other settings are not changed. Printingwill continue in the background.Whilst printing is in progr

Scream! 4.511 Logging and notification11.1 Log filesAs Scream! receives data blocks, it checks that each one is valid andself-consistent. Any errors

User guideInvalid Compression Code : A block with a compression code otherthan 1, 2, or 4.Invalid Block Duration : A block which is not a whol

Scream! 4.511.2 E-mail notificationYou can also instruct Scream! to send e-mail to warn the operatorwhen particular events happen. To set th

User guidemode carry on recording, and do not send these messages. (This doesnot work with DCMs, EAMs and NAMs: only SAMs.)Scream Start / Stop : Gene

User guideBRP : Whether Scream! should attempt to recover droppedblocks from the instrument using the Güralp Block RecoveryProt

Scream! 4.512 Extending Scream!Scream! is a data communication, visualisation and recording tool. Itis not intended for performing detailed analysis

User guidee.g.SelectionMenu=art.exe|ART 2.0 Analysis Package5. If the line [custom] exists, add the name of the new extensionto the list after

Scream! 4.53. Whilst holding down the shift-key ( ), drag a box acrossthe streams. The selected data will be highlighted.Alternativel

User guide13 Keyboard short-cuts13.1 The main windowCertain menu options are available from keyboard short cuts:+ : Select all streams.+ : Open the

Scream! 4.5 : Move to the previous stream. : Move to the next stream.+ : Select to the previous stream.+ : Select to the next stream. : Open a new

User guide : Toggle “overlay mode” on or off. In “overlay mode” all streamsare drawn in the centre of the window, rather than having separatelanes.+

Scream! 4.5 : Decrease the stream's offset by one pixel. : Increase the stream's offset by the width of one lane. : Decrease the stream&apos

User guide14 Inside Scream!14.1 Command line optionsOptions can be prefixed with either a hyphen - or a forward slash / inboth Windows and Linux

Scream! 4.5-disknn:image-file : Treat the file image-file as a raw DFD disk,attached to port nn.-noaspi : On Windows 98, 95 and ME, Scream! use

User guideC:\WINDOWS\scream.ini, for new installations this will be in thec:\scream\ directory. To restore the application to its fa

Scream! 4.5Scream! will remember all the data sources you have specified on exit.When you next open the program, it will automatically

Scream! 4.5scream-directory/ : The default directory for log files. You canchange this: see Chapter 11 on page 126.14.4 Error messagesUnable to det

User guide• The disk is full.• The disk or directory is write-protected.• Another program is using the same file, or you are replaying itin Scream!.•

Scream! 4.515 Revision history2014-01-10 K Corrected URL for UFF specification. General reformatting. Added transmission mode summary. Added warnin

User guideAs an example, the screen shot above shows Scream! running on acomputer which is not directly attached to any instruments.

Scream! 4.5If the top half is yellow , the instrument has reported a gap in thetiming stream. This will occur if the GPS signal deteriorates to th

User guideThe last two characters tell you the type, component, and output tap ofthe stream.• Z0, N0, E0 correspond to input channels Z, N, and

Scream! 4.5Rec. : Whether Scream! is currently recording the data stream to thecomputer's on-board hard disk (not the digitiser's memory).

User guide• Tap : Sort by tap (the last character of the Stream ID). Within atap, sort by instrument, then by component.• Select the Reversed option

Scream! 4.5Table of Contents1 Introduction...

Scream! 4.5Data streams are opened in a Waveview window:This window allows you to see real-time data coming in. You can alsopause the window and exam

User guidedisplayed are the baud rates currently used for each channel and forthe data link.For more information on status streams and GPS, see Sectio

Scream! 4.5open with a text entry box. This window lets you edit Scream!'scalibration values file.Fill in the text box with cal

User guide• To set the value of the calibration resistor, include the lineCALRES=resistanceGüralp Systems digitisers normally use a 51 k

Scream! 4.5Sensor Sensor type codeUnits(V/A)CMG-3T, 360 s – 50 Hz responseCMG-3_360S_50HZ VCMG-3TB or 3V / 3ESP borehole, 30 s – 50 Hz responseCMG-3B_

User guideWhen you have filled in all the values, click .Any WaveView windows that are open will change to show streams inphysical units. New Wa

Scream! 4.5Serial-Nos=T5585VPC=2.013,2.028,2.036G=0.256,0.255,0.255COILCONST=1,1,1CALRES=1TYPE=CMG-5TRESPONSE=CMG-5_100HZ AGRAVITY=9.81089For informat

User guide4 Waveview windowsThe most commonly used features of Scream! are accessed throughWaveview windows. You can open as many Waveview window

Scream! 4.5If you are running Scream! in real-time mode, and you double-click ona GCF file to view it (or open the Scream! viewer in some other way),y

User guidenumber of counts in the bottom left corner. You can drag across onestream, or several; the resulting window will still include all streams.

User guide4.2 Stream functions...364.2.1 Identifying stream

Scream! 4.5this, Scream! needs to know the sensitivities of your digitiser andinstrument (see Section 3.8 on page 21).4.1.3 Printin

User guide• Select Custom filter to activate the filter you have designed. Ifyou have not designed a filter, a 10 – 30 second pass band filterwill be

Scream! 4.5• If the region you have selected is entirely filled withcontiguous data, the selection is shown as a solid block. Ifth

User guide• Select data from two streams by holding down anddragging from one to the other.• Save data to a file by selecting one or

Scream! 4.5extension from the pop-up menu. See Chapter 12 on page 130for more details.Click the Pause icon ( ) again to return to real-time mode.

User guide4.1.7 Context menuRight-clicking inside a Waveview window brings up a context-sensitivemenu in two sections. The upper section

Scream! 4.5This is useful if you want to compare event records from severalinstruments in an array. Select the Overlay Streams

User guide4.2.1 Identifying streamsEvery stream is identified in its icon in the left-hand panel. For moredetails, right-click on the stream. The t

Scream! 4.54.2.3 Scaling streamsTo scale an individual stream, right-click on it and select Scale…:Enter the new scale factor and click . You can

User guidecompare streams by placing one directly on top of another. The laneused for selecting the streams stays the same.4.2.5 SpectrogramScream! c

Scream! 4.57.3.1 STA/LTA...817.3.2 Level...

Scream! 4.5window, hold at the same time. To zoom out, right-click on thefrequency scale, holding , if necessary, to apply to all

User guideTo open the Filter Design window, click on the arrow to the right of theFilter icon and select Design… from the drop-down menu.From top to

Scream! 4.5While the cursor is in one of the frequency boxes, pressing the and keys will nudge the corner frequency up anddown.Alte

User guide• To create a band-pass filter, select both Highpass and Lowpass.Enter values into the text boxes, or click in the graph with theleft and ri

Scream! 4.54.3.2 Viewing spectraYou can overlay the power spectra of up to two streams on thefrequency graph. This is

User guideIf you do not see the Use in Filter Design… option, check thatonly one stream is selected.3. Leaving the Filter Design window open, switch t

Scream! 4.55. If you want to view the spectrum of a different event, followsteps 3 – 4, choosing Yes when you are asked if you want tooverlay the sp

User guideYou can alter the size of window used by changing the value inthis selection box.Using a smaller window size produces a smoother graph, at

Scream! 4.54.4 Display optionsThere are a number of Scream! set-up options which affect howWaveview windows are displayed.4.4.1 Di

User guideclick or , new Waveview windows will have thesame horizontal zoom factor, filter and block boundary options,ba

User guide10.2 Continuous printout...12210.2.1 Port capturing...

Scream! 4.5To create a new stream mapping:1. From Scream!'s main window, choose File Setup…→ . Switchto the Stream Mapping tab.2. Tick Use Str

User guide\ / : * ? " < > |because these characters are not allowed in DOS or Windowsfile-names.4. Click . In this example, new

Scream! 4.5Clicking enables you to import a scream.ini file fromanother Scream! installation and extract the mappings from it. This i

User guide5 NetworkingYou can use Scream! to access the data from a digitiser (or fromanother copy of Scream!) from anywhere o

Scream! 4.5All data received on the server's serial ports will be sent to theseclients automatically. On the client side,

User guide6. To stop the link, right-click as before and select GCFSTOP fromthe pop-up menu. If you do not GCFSTOP, the server willc

Scream! 4.55.2 My ServerScream!'s server transmits data over the network via UDP. To preventnetwork loops, separate options are available to ser

User guide• Right-click anywhere in the Clients list box and select Add…Enter the IP address (or DNS name) and port number on whichthe server is wa

Scream! 4.5Setting this value to zero suppresses all data streams, but stilltransmits status streams.You can configure Screa

User guide5.3 Server BufferIt is recommended that the user ensures there is sufficient disk spaceavailable on the drive selected to hold the buffer.

Scream! 4.51 IntroductionScream! 4.5 is a software application for seismometer configuration,real-time acquisition and monitoring. It runs on Lin

Scream! 4.5You will see a list of all the serial ports available on yourcomputer. This example shows a computer with a single

User guide3. Enter the telephone number of the remote modem. If you wantto contact several remote installations in turn, list theirnu

Scream! 4.5• using several modems allows you to reduce call charges (e.g.you might use a cellular modem to contact installations on GSMnetworks, and a

User guide6 Supplementary windowsAside from the main window, Waveview windows and Network controlwindow, Scream! includes facilities for monitoring st

Scream! 4.5The + and + arrow keys let you browse throughthe history of typed commands. This history is common to allTerminal

User guide6.1.2 Macro commandsThe Terminal window provides icons for the keys – , whichcan be programmed with commonly-used commands (“macros”

Scream! 4.5check that it has the expected baud rate. If it does not, you canchange it in the Setup window (see Section 3.1 on page 11).Click .

User guidefollowed by the number of resets that have occurred and the time ofthe latest reboot from its internal clock. The following lines report th

Scream! 4.5A typical GPS status report from a DM24 digitiser looks like this:This report shows the satellites the system has found, along with theirco

User guideparameters will be appropriate and the system should rapidly switchto the ‘fine’ control mode. The system reports its control status andpa

User guideWaveview windows provide simple filtering capabilities, allowing youto examine seismic signals in a particular frequency range of interest.W

Scream! 4.5You can resize the Status window, or drag the bar between the graphsand the block display area, to see the graphs in more detail.6.3 The su

User guide6.3.1 TimingThis column details the instrument's GPS timing status. The coloursare the same as those used for the top half of the inst

Scream! 4.56.3.3 AgeThis column records the time the instrument last sent data to Scream!.When a data block is received, the box turns green. Over th

User guidecoloured in green; when you Reset window, the green shading willdisappear, but the number will remain.Double-clicking on a column

Scream! 4.5End : The end time of the trigger.Type : What caused the trigger: R if the STA/LTA ratio exceeded theset threshold, L if the level excee

User guideyou are using several sources. Unless the field turns red, the value iswhat Scream! expected.Block Size : The size, in bytes,

Scream! 4.57 Configuring digitisersScream! distinguishes between configuration and control of digitisers.The most important difference is that a

User guide• mass control functions.Some of these options can also be altered in the Configuration set-upwindow. For more information on the Control w

Scream! 4.5GPS Type : The digitiser needs to be able to time-stamp accurately alldata that passes through it. It can set its clock either by receivin

User guideDSP. The DSP has several filtering-decimation stages, which run oneafter the other. Stages which can produce output are called taps. TheG

Scream! 4.5Support for SCSI tape devices is also included for secondary backup orlarge volume archival.See Chapter 9 on page 101 and Chapter 10 on pag

Scream! 4.5With this configuration uploaded, Tap 3 will continue to produceoutput at all times, but Tap 2 will also emit data wheneve

User guideScream! also allows you to configure each digitiser to receive triggersfrom other digitisers.To create a new stream with a tri

Scream! 4.5amplitude increases. The purpose of taking a short term average,rather than triggering on signal amplitude directly, is

User guideUsually, the values of the STA and LTA periods, and of the Ratio, willbe the same for all ticked channels. For convenience, Scream! willau

Scream! 4.5Since it is not generally advisable to trigger from broadband data, thedigitiser provides a set of standard bandpass filters to apply to th

User guideAs can be seen, the filter you choose defines the set of permissiblesample rates.7.3.2 LevelUsing the Level triggering method, a trigger is

Scream! 4.53. Open the Configuration set-up window for the digitiser, and tickEnable External Trigger Input to make it listen for tri

User guideThe collection and transmission of Mux channels is controlled usingthe Mux Channels pane:If a tick is placed in the box next to a channel, i

Scream! 4.5usually be sufficient. If you wish to transmit 200 Hz data, however,the baud rate must be at least 19,200.• It must be low enough to fit w

User guide8 Controlling digitisersTo control a digitiser whilst it is running, either right-click on thedigitiser's entry in the list t

User guide2 Installation and ConfigurationThe Scream! software is available free-of-charge by request tomailto:[email protected].

Scream! 4.5If you change the Sensor Type, you may have to Apply the change,close the Control window, and open a new one to access the MassContro

User guide8.3 CalibrationYou can check that your instrumentation is correctly calibrated byinjecting known signals into the senso

Scream! 4.5the rate to 4 (Hz). In this manner, you can select frequencies rangingfrom 0.1 to 10 Hz (10 to 0.1 s periods).You can specify step calibra

User guideand unlocked manually, whilst a CMG-3T has remote lock and unlockcommands.CMG-40T, CMG-6T seismometers and CMG-5T strong-motionins

Scream! 4.5To choose a transmission or buffering mode, choose options from theTransmission Mode or Buffering drop-down menus, and click .An explanati

User guide• ADAPTIVE mode, if you want data to stay as near to real time aspossible (but do not mind if blocks are received out of order) or• FIFO mod

Scream! 4.51. Choose File Setup… → from Scream!'s main menu, and navigateto the Recording pane.2. Tick Auto-download on heartbeat.3. Click Usin

User guide8.5.4 DUALInstructs the digitiser to transmit any continuous streams directly toclients as for DIRECT mode, but to store trigg

Scream! 4.5can be deleted is if it is overwritten (in the RECYCLE buffering mode,see below) or if you delete it manually.8.5.6 ADAPTIVEInstructs the d

User guide8.5.7 Transmission mode summaryTransmission Mode:DIRECTFILINGDUPLICATEDUALFIFOADAPTIVETransmit continuous data: ✔ ✘ ✔ ✔ ✔ ✔Store continuous