Alcorn Mcbride Digital Video Machine 4, Руководство пользователя

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50 Scheduler
Order of Operations
Here is a listing of times when the DVM4 checks the schedule and the
operations afterwards.
1. The DVM4 loads the searched schedule at:
a. Boot up
b. When the schedule is searched.
c. Every night at midnight.
2. The DVM4 gets today’s date (or already knows it) from built in RTC.
3. The DVM4 parses the schedule and loads all of today’s active events.
4. If it is a bootup that caused the schedule load, the Bootup event gets loaded.
5. If there has been a bootup delay set via the INI file or remote command, then
the unit will wait until that time has expired before starting. This allows
DVM4 to wait on products that boot slower than it does before starting a
show. An example is a slow booting projector. The DVM4 has to wait until it
has booted before playing video.
Double Occupancy: When Two Events Occupy
the Same Slot
If you plan on having a fairly complicated show, you may want to be sure you
don’t have events competing with each other for execution when their time and
date come around. This discussion looks at what happens when to events end up
on the same time and date. It explains the rules used to determine which event
wins.
Definitions
The following are previously undefined terms used in the Scheduler Rules
discussion below
•
Timestamp - time portion of the event's starting point (T: and D: )
•
Datestamp - date portion of the event's start point (T: and D: )
•
Slot - the event's tim datestamp.
•
Startslot - slot when the event begins (required)
•
Endslot - slot when the event ends (not required)
•
Profile - an event’s startslot, endslot, type (defined below)