Template:Secure vehicle disabling

Solution description

From the firmware version 03.28.02 Secure vehicle disabling was introduced. This solution is intended to stop the stolen vehicle regardless of the thief's actions. Best way to do so is to disable fuel pump in order to prevent vehicle to be driven further away. However, disconnecting fuel pump on high speed will definitely cause an accident and innocent people may be harmed.

Therefore we came up with a logic how to force vehicle to stop without causing an accident. Pulsing digital output disables fuel pump in intervals until vehicle slows down to configured speed from which pump is fully disabled.

What you need for a solution?

• The secure vehicle disabling solution is supported by any Teltonika FMB series tracker (excluding FMX640 series trackers and FMB910) which has one or more digital output (DOUT) which in this scenario is used to control fuel pump of the car.
• The SIM card in order to get data to your server.
• Automotive Relay to cut off the fuel pump
• The secure engine cut-off (SECO) functionality is only available in Teltonika FMB series GPS trackers starting with the firmware version 03.28.02.
• FOTA WEB to remotely send the configuration to the device.

Installation

It’s important to well hide tracker, so it would not be a simple task for the thieves to find and unplug it.

Although devices have high gain antennas it’s important to mount devices with stickers on top and in metal-free space. The device should be firmly fixed to the surface or cables. Please make sure, that device is not fixed to heat emitting or moving parts.

During installation please follow recommendations in order to avoid damaging device and vehicle:

• Wires should be connected while the module is not plugged in.
• Be sure that after the car computer falls asleep, power is still available on the chosen wire. Depending on the car, this may happen in a 5 to 30 minutes period.
• When the module is connected, be sure to measure the voltage again if it did not decrease.
• The ground wire is connected to the vehicle frame or metal parts that are fixed to the frame.

Configuration

System settings:

• 113 - Data protocol (0 – Codec 8, 1 – Codec 8 Extended)

Sleep settings:

• 102 – Sleep settings (0 – Disable, 1 – Gps sleep, 2 – Deep sleep, 3 – Online Deep sleep, 4 – Ultra sleep)

Note: This scenario will not work with Deep Sleep and Ultra Deep Sleep since they disable the device's GSM module to save power.

SECO scenario settings:

• 12250 – Scenario priority (0 - Disable, 1 - Low, 2 - High, 3 - Panic).
• 12251 – Eventual settings (0 – Disable, 1 – Enable), if disabled - scenario status value will be appended in each AVL record.
• 12252 – Output Control (0 – None, 1 – DOUT1, 2 – DOUT2, 3 – DOUT3)
• 12254 - Speed (km/h). Digital output will be activated if vehicle speed consistently lower than configured during "Speed check period".
• 12259 - Speed Pulse Scenario (km/h). Valid if "Output Pulse" feature enabled. Scenario will be activated if vehicle speed consistently lower than configured during "Speed check period". After activation digital output will be activated and disabled continuously until speed will be lower then configured in "Speed" field and longer then "Speed check period".
• 12255 - Speed check period (s). Time span during which vehicle speed must be lower than configured for output to activate.
• 12256 - Movement timeout (s). Accelerometer's instant movement timeout after which output will be activated (GNSS OFF).
• 12253 - Output Pulse (0 – Disable, 1 – Enable). Pulse scenario adds additional output control which helps to slow down vehicle before fully disabling fuel pump.
• 12257 – DOUT ON Duration (ms)
• 12258 – DOUT OFF Duration (ms)
• 7377 – Send SMS To
• 8377 – SMS text
  

Quick start: From default configuration to SECO detection in one SMS:

"  setparam 2001:APN;2002:APN_username;2003:APN_password;2004:Domain;2005:Port;2006:0;113:1;102:1;12250:2;12252:1"

This SMS will set up your device for Secure Vehicle Disabling scenario - remote secure engine cut-off (SECO) functionality.

Note: Before SMS text, two space symbols should be inserted if no SMS username or password was set in SMS \ Call settings.

SECO SMS Commands

Secure engine cut-off (SECO) functionality is available for device with at least one DOUT. For SECO functionality to work, DOUT must to be selected. SECO has DOUT control priority higher than immobilizer scenario.

SECO scenario can only be enabled or disabled by SMS commands:

• "secoon" - to activate SECO functionality.

• "secooff" - to disable SECO functionality.

The structure of sending SMS commands: FMB130 SMS/GPRS Commands

1. SMS responses

To SMS command „secooff“ device will give response: „Seco off received. DOUTX off“.

To SMS command „secoon“ response:

1. „Seco on received. Waiting for conditions“.

2. „Seco on received. DOUTX pulsing“.

3. „Seco on received. DOUTX on“.

When response is not 3 all later SMS will be received. Example: SMS 1 received and pulse configured, then SMS 2 will be received when speed is lower than configured and SMS 3 will be received when speed reaches 0 km/h.

Note: Sending commands to the device without DOUT will give response "SECO not available for this device". When DOUT is not selected in configuration response will be: "Error. no DOUT configured".

2. SECO Pulse functionality

In case SECO pulse (12253) is enabled device will not activate DOUT immediately.

GNSS fix present: when speed is lower than configured Speed Pulse Scenario (12259) for configured amount of time (12255), device will pulse DOUT until GNSS speed reaches configured speed (12254) then DOUT will stop pulsing and stay active (ON) until „secooff“ SMS is received.

GNSS fix unavailable: wait until movement timeout (12256) is reached then DOUT will stay active until „secooff“ SMS is received.

In case SECO pulse is disabled while pulsing, device will activate DOUT.

3. GNSS fix available

After "secoon" SMS is received, command will be saved to the device memory and check vehicle speed. When speed is lower than configured (12254) for configured amount of time (12255), device will activate configured DOUT.

4. GNSS fix unavailable

After "secoon" SMS is received, command will be saved to device memory and movement timeout. When movement timeout (12256) is reached, device will activate configured DOUT.