Secure vehicle disabling

Introduction

Secure Engine Cut Off (SECO) is a functionality that safely disables a vehicle’s engine based on predefined speed or movement conditions. It is typically activated remotely and used for security, immobilization, or theft prevention purposes.

Solution Description

SECO feature was introduced from the firmware version 03.28.02.

Secure Engine Cut Off enhances vehicle security by allowing the engine to be disabled under controlled conditions. It helps prevent theft by stopping unauthorized movement, supports fleet security through remote immobilization when suspicious activity occurs, and limits unauthorized usage by shutting down the engine when vehicles operate outside permitted times or areas.

Solution Requirements

• The secure vehicle disabling solution is supported by any Teltonika FMB series tracker (excluding FMX6 series trackers) that has one or more digital output (DOUT) which in this scenario is used to control fuel pump of the car.
• SIM card for data transmition to your server.
• Automotive Relay to cut off the fuel pump.
• SECO functionality is only available with Teltonika FMB series GPS trackers starting with the firmware version 03.28.02.
• FOTA WEB for remote configuration of the device.

Installation

It is important to position the tracker so it would not be easy to locate.

Additionally, please refer to Mounting Recommendations for recommended mounting instructions.

Although devices have high gain antennas it is 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 within 5 to 30.
• When the module is connected, be sure to measure the voltage again to see if it did not decrease.
• The ground wire is connected to the vehicle frame or metal parts that are fixed to the frame.

Configuration

2. Configuring SECO scenario

Parameter ID - Parameter name GPRS settings:

• 2001 – APN
• 2002 – APN username (if there are no APN username, empty field should be left)
• 2003 – APN password (if there are no APN password, empty field should be left)

Server settings:

• 2004 – Domain
• 2005 – Port
• 2006 – Data sending protocol (0 – TCP, 1 – UDP)
  

After successful GPRS/SERVER settings configuration, FMB130 device will synchronize time and update records to the configured server. Time intervals and default I/O elements can be changed by using Teltonika Configurator or SMS parameters.

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 the configured Speed Pulse Scenario (12259) for the configured amount of time (12255), the 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 (12254) is lower than configured for the 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.

Parsing information

2. Parsing example:

Unparsed received data in hexadecimal stream
00000000000000678E02000001774D66D5A8010F1267D220979FC600BE00C1050028018C0004000400EF0100 F00100B300018C010000000000000000000001774D66D990010F12663120979BFF00BE00C1050028018C0004 000400EF0100F00100B300018C020000000000000000020000A65F

AVL Data Packet
AVL Data Packet Part	HEX Code Part
Zero Bytes	00 00 00 00
Data Field Length	00 00 00 67
Codec ID	8E (Codec 8 Extended)
Number of Data 1 (Records)	02
Timestamp	00 00 01 77 4D 66 D5 A8 (Friday, January 29, 2021 9:08:41 AM)
Priority	01
Longitude	0F 12 67 D2
Latitude	20 97 9F C6
Altitude	00 BE
Angle	00 C1
Satellites	05
Speed	00 28
Event IO ID	01 8C (AVL ID: 396, Name: Seco)
of Total ID	00 04
of One Byte IO	00 04
1’st IO ID	00 EF (AVL ID: 239; Name: Ignition)
1’st IO Value	01
2’nd IO ID	00 F0 (AVL ID: 240; Name: Movement)
2’nd IO Value	01
3’th IO ID	00 B3 (AVL ID: 179; Name: Digital Output 1)
3’th IO Value	00
4’th IO ID	01 8C (AVL ID: 396, Name: Seco)
4’th IO Value	01 ( 0 - SECO DOUT OFF; 1- SECO DOUT pulsing; 2 - SECO DOUT ON)
N2 of Two Bytes IO	00 00
N4 of Two Bytes IO	00 00
N8 of Two Bytes IO	00 00
NX of X Byte IO	00 00
Timestamp	00 00 01 77 4D 66 D9 90 (Friday, January 29, 2021 9:08:42 AM)
Priority	01
Longitude	0F 12 66 3
Latitude	20 97 9B FF
Altitude	00 BE
Angle	00 C1
Satellites	05
Speed	00 28
Event IO ID	01 8C (AVL ID: 396, Name: Seco)
of Total ID	00 04
of One Byte IO	00 04
1’st IO ID	00 EF (AVL ID: 239; Name: Ignition)
1’st IO Value	01
2’nd IO ID	00 F0 (AVL ID: 240; Name: Movement)
2’nd IO Value	01
3’th IO ID	00 B3 (AVL ID: 179; Name: Digital Output 1)
3’th IO Value	00
4’th IO ID	01 8C (AVL ID: 396, Name: Seco)
4’th IO Value	02 ( 0 - SECO DOUT OFF; 1- SECO DOUT pulsing; 2 - SECO DOUT ON)
N2 of Two Bytes IO	00 00
N4 of Two Bytes IO	00 00
N8 of Two Bytes IO	00 00
NX of X Byte IO	00 00
Number of Data 2 (Number of Total Records)	02
CRC-16	00 00 A6 5F

Demonstration in platform

TAVL

Open TAVL → select client → select Street Map → select device → choose the date range → select advanced → select show → information will appear in the bottom left corner.

WIALON

Open WIALON → select messages → select unit (select your device) → choose the date range → select message (data messages) → select execute.