1. Background

Modern urban public transport systems face multiple challenges: ensuring passenger safety, maintaining vehicle health to prevent breakdowns, providing high-quality on-board Wi-Fi, and tracking vehicles accurately in "urban canyons" (areas with tall buildings or tunnels). Fleet operators need a centralized system to monitor all these variables in real-time.

2. The Solution: InHand VG710 5G Gateway

The InHand VG710 is installed as the central communications hub for each bus. It acts as the "brain" of the vehicle, connecting the on-board systems to the transit authority's cloud platform.

3. Key Implementation Features

• High-Speed Passenger Wi-Fi (5G & Wi-Fi 5): Utilizing 5G high-bandwidth (up to 2.1Gbps), the VG710 provides stable, high-speed Wi-Fi for hundreds of passengers daily. It supports dual-band Wi-Fi (2.4G/5G), allowing concurrent connections for both passenger internet and internal ticketing systems.

• Real-time Vehicle Diagnostics (CAN Bus): The VG710 connects to the bus's J1939 or OBD-II port. It continuously monitors engine RPM, fuel consumption, coolant temperature, and mileage. This data is sent to the cloud to predict maintenance needs, reducing unexpected vehicle downtime.

• Precision Tracking with Inertial Navigation (GNSS/ADR): Buses often travel through tunnels or under bridges where GPS signals are lost. The VG710’s Automated Dead Reckoning (ADR) uses built-in 3D sensors (accelerometer and gyroscope) to maintain accurate location tracking even without a satellite signal, ensuring the "Arrival Time" apps for passengers remain accurate.

• Security Video Backhaul: On-board HD surveillance cameras are connected to the VG710 via Gigabit Ethernet. In the event of an emergency, the 5G uplink allows the control center to stream live video feeds to assess the situation immediately.

• Driver Behavior Monitoring (Edge Computing): Using its Edge Computing (Python) capability, the VG710 analyzes driving data locally. It can instantly detect and alert the driver for "harsh braking," "sharp turning," or "overspeeding" without waiting for cloud processing, significantly improving safety.

4. Hardware Advantages in this Case

• Ignition Sensing: The VG710 detects the bus ignition signal to manage power, ensuring it shuts down gracefully after the bus is turned off to avoid draining the vehicle battery.

• Industrial Durability: With an IP64 rating and -40°C to +70°C operating temperature, the device handles the vibration, dust, and heat typical of an engine compartment.

• Cloud Management: Fleet managers use the InHand Device Manager to batch-upgrade firmware and monitor the online status of thousands of gateways across the city.

5. Results and Benefits

• Enhanced Experience: High-speed 5G Wi-Fi increases passenger satisfaction.

• Operational Efficiency: Real-time diagnostics reduce maintenance costs by up to 20%.

• Safety: Accurate tracking and driver monitoring lead to fewer accidents and better schedule adherence.

• Scalability: The open Python/Docker platform allows the transit authority to add new features (like automated passenger counting) via software updates.