User's Manual

DRAFT TrimTrac 1.5 Technical Manual v0.3ab 57

1. “2=Sent” from “1=Activated” during the TRANSMIT state if and only if

the GSM protocol software has confirmed that the message has been

successfully transmitted to the GSM network.

“3=Acknowledged” from “1=Activated” or “2=Sent” only upon the

receipt of an appropriate SET_ALERT_STATE message or, if the Alert

Mode is set “2=Network Acknowledgement”, upon confirmation from the

GSM protocol software that the message has been successfully transmitted

to the GSM network.

3. “0=Normal” from “1=Activated”, “2=Sent” or , “3=Acknowledged” only

upon the receipt of an appropriate SET_ALERT_STATE message;

provided, however, whatever condition that triggered the original alert has

been cleared. If the alert mode has been configured as “3=Monitor-only”,

then correcting whatever condition that triggered the original alert will

cause the alert status to be set back to “0=Normal”.

Using a Provisioning Module to silence an alert by setting the offending priority

alert mode to “1=Disable” will not clear the underlying alarm condition.

Therefore, if the alert modes are later set back to “0=Automatic”, either through

the use of a Provisioning Module or by sending the device an

SET_MODULE_APP_CONFIG message, the device will resume transmitting the

associate alert messages. The underlying alert monitoring software can only be

reset or cleared by sending the device the appropriate SET_ALERT_STATE

message.

IDLE State

The IDLE State is the state that the device enters when it goes to sleep waiting for

a TriggerType event to occur. Upon the occurrence of any TriggerType event, the

unit will transition from IDLE in accordance with TriggerType and current

configuration settings. While in the IDLE state, assuming default configuration,

all hardware is turned off except for the Motion Sensor Wakeup Logic and the

RTC; provided, however, if the Anytime Polling is set to either “1=Duty-Cycled”

or “2=Anytime OnDemand”, then the GSM hardware and software will operate

some or all of the time and the unit is able to communicate during IDLE.

1. When the unit enters the IDLE State it checks if motion has been detected

since the last position fix attempt. If yes, the TriggerType is set “1=Motion

Detected” and the device immediately transitions to the FIX State bypassing

all of the other IDLE state checks detailed below.

When the unit enters the IDLE State and no motion has been detected, it starts

the IDLE Timeout, T1, and waits for a TriggerType event to occur. (LED

OFF, unless Anytime Polling mode is set “2=Anytime OnDemand”.)

Upon the occurrence of a TriggerType event, the unit will wake up and

transition out of the IDLE state based upon the TriggerType event and the

current configuration settings as follows: