¶ Overview
¶ Features
The device sends the following information to the passenger counting system:
- Current date and time;
- Vehicle ignition status;
- Vehicle door status;
- (Optional) Position, speed, and heading.
The device can control the power supply of the passenger counting system:
- Automatically based on the vehicle ignition status;
- Supports an emergency command to power-cycle the passenger counting system.
The device receives data from the passenger counting system and can forward it to the monitoring server:
Passenger counting parameters are stored in the device as custom parameters. These parameters are transmitted to the monitoring server using custom protocol fields (No. 207–255).
A description of the protocol parameters is available in the FLEX Protocol Parameters documentation:
https://wiki.navtelecom.ru/en/home/developers
The device can generate the following events while operating with the passenger counting system:
¶ Operating Principle
The system configuration is shown below:
The device controls the operation of the passenger counting system based on the vehicle ignition status.
To monitor the ignition, the device uses a digital input configured as an ignition input and marked with the Use as Ignition flag.
Configure this on the "Inputs" tab:
When the vehicle ignition is turned on, the device powers the passenger counting system and, after a short delay, starts communication with it. Once the first valid response is received, the device generates event 9569.
When the ignition is turned off, the device switches off the passenger counting system after the delay configured on the "RS-232/RS-485" tab and generates event 9570.
If the ignition is turned on again before the timer expires, the timer is reset and the scheduled power-off is cancelled.
To control the power supply of the passenger counting system, an output line must be properly configured on the "Outputs" tab.
If the device cannot receive confirmation of the time synchronization command or stops receiving responses from the passenger counting system, it automatically power-cycles the system. Event 9569 is generated.
If the passenger counting system reports camera errors, the device sets the corresponding flags in the Autoconductor, Camera Status parameter and generates event 9568.
Passenger counting depends on the vehicle door status. To notify the passenger counting system about door events, connect the door sensors to the device digital inputs and configure which input corresponds to each door (Door 1 is the vehicle front door).
Configure the door sensors on the "Inputs" tab:
Then specify which doors are connected to each input on the "RS-232/RS-485" tab:
After the doors are closed, the passenger counting system processes the recorded video and reports the counting results to the device.
Video processing may take from one minute to several tens of minutes.
When the counting results are received, the device generates event 9571 and stores the following parameters:
- Autoconductor, Unique Tag
- Autoconductor, Door 1 Counter (IN)
- Autoconductor, Door 1 Counter (OUT)
- Autoconductor, Door 2 Counter (IN)
- Autoconductor, Door 2 Counter (OUT)
- Autoconductor, Door 3 Counter (IN)
- Autoconductor, Door 3 Counter (OUT)
- Autoconductor, Door Number
- Autoconductor, Last IN Count
- Autoconductor, Last OUT Count
- Autoconductor, Video Timestamp
- Autoconductor, Sorting Timestamp
- Autoconductor, Video File ID
- Autoconductor, Error Code
If the passenger counting system needs to be rebooted manually, send the following command via SMS or the Internet. When the command is accepted, the device generates event 41517.
Example:
*!ACOND RESET
For a detailed description of this command, see "Device Command List".
¶ Device Configuration
- "RS-232/RS-485" tab. Configure the communication interface for the passenger counting system.
-
"Inputs" tab.
- Configure the ignition input.
- Configure the door status inputs.
-
"Outputs" tab. Configure the output that controls the passenger counting system power.
- "Protocol Settings" tab. Enable the protocol parameters to be transmitted to the monitoring server.
¶ Verification in Telemetry
Device startup, initial state:
Ignition input activated:
The initialization process can be monitored using the Autoconductor, Status parameter.
First, the device powers the passenger counting system and sets the Powered On flag. It then starts polling the system and, after successful communication, sets the Responses Received flag. Finally, it synchronizes the time. If successful, the Time Synchronized flag is set.
Status change:
First responses received, time synchronized (status updated):
Door opened:
Door closed:
Passenger counting results received:
Camera status changed (camera 1 failure detected):
Camera status changed (camera 1 restored):
Passenger counting system reboot command executed:
Status after reboot:
