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Ignition Level: ”Ignition Level” is the voltage level when the ignition is turned on. By default, it
is “High”. For some special vehicle, this value should be set to “Low”.
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ACC Power OFF Delay: The DVR can be set to keep on for some time after the ignition is turned
off, and turned off automatically by the set time. This value is in seconds, the default value is 30
seconds. In this case, the DVR will go to standby. In standby mode, the DVR will not be powered
on unless the ignition is turned on again. And even if the ignition is turned on again, the DVR
will still need about one minute to boot up completely and start recording. If the “ACC Power
OFF Delay” is set to 0, the DVR will be always on and not be turned off even if the ignition is
turned off.
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Sleep Delay-ACC Off: This parameter is used to set the timeout when DVR is going to sleep
mode after the ignition is off. In sleep mode, the camera will be turned off, but the DVR is still
working. This is different from the case when using the “ACC Power Off Delay” to let DVR go
into standby mode. In sleep mode, as the DVR is always working, the DVR will power up the
camera and start recording immediately when there is any alarm is triggered. The “Sleep
delay-ACC Off” value usually should be set to a value larger than “ACC Power OFF Delay”,
otherwise the DVR will go to standby mode before going to sleep mode. If “Sleep Delay-ACC Off”
value is set to 0, the DVR will not go to sleep mode.
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Sleep Delay-No Alarm: This parameter is to set the timeout when DVR is going to sleep mode
after last alarm (event) occurred. If this value is set to 0, the DVR will not going to sleep mode
even if there is no alarm.
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Timer Power On/Off: This is to set the DVR to turn on/off at specified time. If both value is set
to “00:00”, this feature is disabled.
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Power On/Off Threshold Voltage: When the voltage connected to the DVR is higher/lower than
the Power On/Off Threshold Voltage, the DVR will turn ON/OFF. When it is set to “0”, the setting
is OFF.
The reason that we have two power-saving modes (the standby mode and the sleep mode) for DVR
is that in some cases the DVR should resume recording immediately from power save mode. In
standby mode, the DVR is turned off and the cameras are also turned off, the power consumption
will be very small. But the DVR needs about 20 seconds to boot up before it can resume recording.
In sleep mode, the DVR is still on but the cameras are turned off. The sleep mode will have more
power consumption than standby mode, but it will have less power consumption than working mode.
A typical use for sleep mode and standby mode is for taxi application. The DVR can set “ACC Power
Off Delay” to 21600 seconds (6 hours), “Sleep Delay-ACC off” to 10800 seconds(3 hours), and
“Sleep Delay-No Alarm” to 10800 seconds(3 hours). We will also connect the taxi meter signal to the
“Sensor 1” (Alarm 1) and the door open signal to “Sensor 2” (Alarm 2). These two sensors will
trigger recording. With this configuration, if the taxi is parking (no ignition) for 3 hours, and there is
no passenger (no meter on or no door open) for 6 hours, the DVR will go to sleep mode. But during
this time, if the taxi is turned on or there is a passenger, the DVR will start recording immediately. If
the taxi is parking (no ignition) for 6 hours and there is no passenger (no meter on or no door open)
for 6 hours, we will think the taxi is not running, the DVR will go to standby mode.
