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Published byAbner Berry Modified over 9 years ago
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Recent Experience using PDAs as Field Data Recorders Peter Gould and Connie Harrington Pacific Northwest Research Station
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Overview Devices and software. Creating an application for data collection. Examples
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Range of devices are available ≈$300 - $500 ≈$1500 ≈$2500 - $4000
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Software: SprintDB Pro (www.kaione.com) What’s good: Easy to get started. Takes advantage of touch screen. Desktop developer version; intuitive development environment. Uses MS Access databases. Extensive macro language. Inexpensive ($75 for desktop + device versions)
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Software: SprintDB Pro What’s not-as-good: Runs with Windows Mobile (some devices use Windows CE). Still need MS ActiveSync for import/export. Desktop version not exactly the same as device.
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Parts of an SpDB Application Tables: Store the data Forms: enter, view, edit data using a comfortable interface. –Multiple forms in one app; main and subforms. –macros: reusable code within a form. Queries: Compares, summarizes, and subsets data in tables. Also run queries in forms via SQL statements. Modules: reusable code available to all forms in the application.
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Creating an Application Open / create database. Create forms. Test. Export to device (if using desktop developer).
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Creating Forms
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Adding Objects
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Recording Data: Edit Box
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Making Things Happen: Events
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Example 1: Plot Remeasurement Pull-down menu to select site Custom keyboard List of plots in the site “Conditional formatting” grey- out plots that have been completed. Data recorded on multiple tabs
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Previous measurements place alongside edit boxes for new ones
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Copy prism tally from previous plot (plots close together). Copy tree and plot information Enter species codes w/ these buttons.
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Example 2: DF Budburst Conditional formatting: change color when budburst is recorded.
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Example 2: DF Budburst Record date from system clock.
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Example 2: DF Budburst Record “canned” comments; buttons turn red when pressed. Built-in QWERTY keyboard for detailed comments.
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Link database with analysis for rapid results 30 seconds later…
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Example 3: Stem Mapping Calculate X-Y Coordinate SetVar(@new_x,¤t_x+ sin(&AZ*3.14159/180)*&DIST) SetVar(@new_y,¤t_y + cos(&AZ*3.14159/180)*&DIST) SetVar(@new_x,round(@new_x,1)) SetVar(@new_y,round(@new_y,1)) UpdateRecord(MainForm,map1.point_x,@new_x,No) UpdateRecord(MainForm,map1.point_y,@new_y,No) Current location Enter distance and azimuth to new feature
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Example 3: Stem Mapping UpdateRecord(MainForm,map1.temp_x,(map1.point_x-@x_center)*@scale + 5,No) UpdateRecord(MainForm,map1.temp_y,230-((map1.point_y-@y_center)*@scale) - 5,No) DrawText(map1.temp_x,map1.temp_y,@type,@color,,@font)
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Other Software (Windows Mobile) vSnap : creates images of “screenshots” on mobile devices (I used it for this presentation). DictMgr: lets you teach your device new words (e.g., dbh) for the autocomplete feature (both vSnap and DictMgr from www.mobile-sg.com). New software is coming out all of the time!
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