This protocol is used by all Starlink GPS tracking devices by ERM Advanced Telematics.

Below is the list of parameters that can appear in the messages received by the channel via erm protocol. In most parameters, the name consists of tags split by dots: tag1.tag2.tag3.tag4... Each tag defines a certain area of an application, e.g. any parameter that contains mileage data has the 'mileage' tag in the name and any parameter related to fuel control contains the 'fuel' tag. By default JSON fields of the message received by a channel via this protocol can only contain the below-specified parameters. Any additional parameter will be prefixed by the "custom" tag, e.g. "custom.unspecified-name".

Name Type Unit Description
accident.direction number Direction of accident
accident.direction.description string Description of accident direction
accident.event boolean Accident event detected
ain number volts Voltage on the analog input
alarm.event boolean Alarm event triggered
battery.level number percentage Internal battery level
battery.status string Battery status
battery.voltage number volts Internal battery voltage number ID of channel that received message number ID of device that received message number Name of device that reveiced message
device.temperature number celsius Temperature of device number ID of device type of device that recevied message
din number Digital inputs bitmask boolean Door open status
dout number Digital outputs bitmask
engine.ignition.on.duration number seconds Duration when engine is on
engine.ignition.status boolean Engine ignition status
error.level number Error level number
error.level.description string Error level description string
error.type number Error type identification number
error.type.description string Error description string
external.powersource.voltage number volts External power voltage
gsm.cellid number GSM base station ID
gsm.lac number GSM location area code
gsm.signal.level number percentage GSM signal strength level boolean Hood open status
ibutton.code string Hexadecimal code of connected iButton
ident string Device unique identificator and optional password
lca.alarm.armed.status boolean Armed state
lca.alarm.connection.status boolean Communication state
lca.alarm.serial.number number Alarm serial number
lca.alarm.siren.status boolean Sirene activate state
lca.alarm.timestamp number Lca alarm timestamp
lca.alarm.version number Alarm version
max.position.speed number km/h Maximum speed on segment
movement.event boolean Movement detected
movement.status boolean Current movement state
overspeeding.event boolean Overspeeding detected
peer string IP:port from which device connecting to the channel
position.altitude number meters Altitude value for position
position.direction number degrees Heading angle at position detection moment
position.hdop number Horizontal dilution of precision
position.latitude number degrees Latitude coordinate value
position.longitude number degrees Longitude coordinate value
position.satellites number Quantity of satellites used to calculate coordinates for given position information
position.speed number km/h Instant speed at position detection moment
position.timestamp number seconds Timestamp when coordinates where calculated number ID of protocol
protocol.version string Protocol version string
sensor.temperature number celsius Temperature sensor value
server.timestamp number seconds Timestamp when server received message
software.version string Software version string
timestamp number seconds Message timestamp
vehicle.mileage number km Total calculated mileage
x.acceleration number g Accelerometer value X
y.acceleration number g Accelerometer value Y
z.acceleration number g Accelerometer value Z

Below is the list of commands that can be sent to devices to change their configuration or to send signals to various outputs. When sending a command you can specify the transport type defining how the command will be delivered - the address parameter can take values connection (via network connection once the device goes online), sms (via SMS message), push (via PUSH notification). A comprehensive format of each command with all possible parameter values, parameter types, default values, etc. can be found in the REST API documentation in your account.

Title Name Description Properties
Get location get_location Get location
Get param getparam Get configuration param value param: Param number
Output off output_off Output off outnum: Number/id of output
Output on output_on Output on outnum: Number/id of output
Set param setparam Set configuration param value param: Param number

value: Param value