Sensor types
When creating a sensor, select its type in accordance with the principle of its operation and the equipment used. The sensor type should correspond to the characteristics of the device used for the unit, otherwise the calculations can be incorrect.
Each sensor type is available only if the corresponding service is enabled in the billing plan or account properties.
For sensors of any type, you can specify an expression parameter, configure a calculation table, and configure validation.
The sensor types available in Wialon Lite are divided into three groups:
Digital
This group consists of sensors which can have only two states. For example, on/off, activated/deactivated, and so on.
| Sensor type | Units of measurement | Description |
|---|---|---|
| Engine ignition sensor | On/Off or any |
The sensor which shows whether the ignition is on or off. You can use it in the trip detector to detect trips and parkings and in mileage and engine hours counters. |
| Real-time motion sensor | On/Off | The sensor which determines the movement state of units in real time. |
| Custom digital sensor | On/Off or any |
The custom sensor which has two states: on/off, activated/deactivated, and so on. |
If a non-digital parameter is specified for a digital sensor, then any numerical value other than 0 is considered as an enabled state. In such cases, it’s advisable to configure a calculation table so that all incoming values are converted to 0 or 1. This avoids distortions in formula calculations.
If no units of measurement are specified for a digital sensor, its values are considered as numbers, not as an enabled or disabled sensor state.
Gauges
This group contains sensors which are used to measure values such as weight and temperature.
| Sensor type | Units of measurement | Description |
|---|---|---|
| Weight sensor | t (tons), pounds | The sensor which is used to determine the weight of transported goods. |
| Temperature sensor | °C (degrees Celsius), °F (degrees Fahrenheit) | The sensor which shows the temperature value or any other parameter. You can use the temperature sensor to analyze received values. |
Other
This group includes a custom sensor and a sensor which is used to control drivers.
| Sensor type | Units of measurement | Description |
|---|---|---|
| Custom sensor | any | The sensor which can be configured to measure any value sent by the unit. You can specify any unit of measurement for this sensor. Sensors of this type can only use text and numeric parameters. See more details on how the text parameter values are displayed on the Sensor parameters page. |
| Driver assignment | none | The sensor which can be used to detect the assignment of the driver to the unit. |