DAVIS WeatherLink Manuel d'utilisateur télécharger pdf (Page 2)

Software Specifications

Software System Requirements

A network or ethernet connection. Computer running Windows™ 98 SE, Windows 2000, XP or Vista with Microsoft

.NET 2.0 framework. The amount of disk space necessary for the data files depends on the archive interval. Each

archive record in the database is 88 bytes. Every day in the database has an additional two records totalling 176 bytes

that store daily summary information. A database containing data stored at a 30-minute archive interval requires 132

KB of disk space per month. The file size changes in a linear fashion depending on the archive interval. For example,

data stored at a one-minute interval requires approximately 3.9 MB a month while the data stored at a two-hour

interval requires approximately 33 KB a month.

Software Data Display Options

Some of the weather data and reports listed below require optional sensors.

Real-Time Displays (these displays update in real-time):

Graphical Bulletin. . . . . . . . . . . . . . . . . . . . . . . . . . . Inside Temperature, Outside Temperature, Wind Direction (0°- 360°),

Wind Speed, Daily Rain Total, Monthly Rain Total, Year-to-Date Rain

Total, Storm Total, Rain Rate, Inside Humidity, Outside Humidity,

Barometer, Barometer 6-hour Plot, Evapotranspiration (ET) (day,

month, year), Today’s Highs and Lows, Forecast Icons, Forecast

Text, and Illuminated Fraction of the Moon Disk.

Text-Based Summary. . . . . . . . . . . . . . . . . . . . . . . . Inside Temperature, Outside Temperature, Wind Direction (0°- 360°),

Wind Speed, Daily Rain Total, Monthly Rain Total, Year-to-Date Rain

Total, Storm Total, Rain Rate, Inside Humidity, Outside Humidity,

Barometer, UV, Solar Radiation, ET (day, month, year), Today’s

Highs and Lows, Forecast Text, and Moon Phase.

Update Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . Two seconds (approximately)

Plotting Displays:

Plot Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enables graphing of all database information (multiple variables may be

plotted on a single graph) over any of the following spans (1 hr, 4 hr, 8

hr, 12 hr, 1 day, 3 days, Week, Month, Year). Multiple dates may also

be plotted on the same graph.

Strip Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Four stacked line graphs (multiple variables may be plotted on a

single graph), which update at the time of each archive interval. Strip

charts may use any of the following spans (1 hr, 4 hr, 8 hr, 12 hr, 1

day, 3 days, Week, Month, Year).

Reports:

NOAA Monthly Summary . . . . . . . . . . . . . . . . . . . . . Based on the National Oceanic and Atmospheric Administration

(NOAA) Monthly Weather Watcher report

NOAA Yearly Summary . . . . . . . . . . . . . . . . . . . . . . Based on the National Oceanic and Atmospheric Administration

(NOAA) Yearly Weather Watcher report

Yearly Rainfall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Calculates rainfall totals broken down by month and year. Rainfall

data may be altered and added to reflect rainfall totals for months and

years which are not contained in your weather database.

Degree-Days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tracks degree-days and progress towards development for an

unlimited number of crops or pests; base and upper development

thresholds and development totals entered by user.

Temperature/Humidity Hours . . . . . . . . . . . . . . . . . . Calculates the number of hours the temperature has been either

above or below a given threshold, and that during which time the

humidity was above a given threshold from a given start date.

Typically used to track conditions for the development of agricultural

pests and molds.

Soil Temperature Hours . . . . . . . . . . . . . . . . . . . . . . Calculates the time that soil temperature has been above freezing (or

some other threshold). Typically used to determine a time to plant

crops.

Chilling Requirements . . . . . . . . . . . . . . . . . . . . . . . Calculates the number of hours spent below a specified temperature

during a specified period of time. Typically used to determine if the

coldness requirement for a fruit tree in dormancy has been met.

Bright Sunshine Hours . . . . . . . . . . . . . . . . . . . . . . . Calculates amount of sunshine for a selected time period.

Leaf Wetness Hours. . . . . . . . . . . . . . . . . . . . . . . . . Calculates the amount of leaf wetness hours over a time period.

Fuel Demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Estimates fuel usage based on past usage and outside temperatures.

Total ET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Calculates ET for a selected time period.

Sunrise & Sunset Times . . . . . . . . . . . . . . . . . . . . . . Calculates sunrise and sunset times for any given latitude, longitude

and date.

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DAVIS WeatherLink Manuel d'utilisateur Page 2

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