Traffic Solution | Building a smart public transportation system based on the Flink A40i core board

Waiting for the bus is an annoying thing. This process will constantly challenge our patience. Maybe your hard work will only result in the bus passing by you, or maybe your patient waiting will only result in the bus being late. Even if you wait for the bus, you still have to take the risk of not being able to get on.

But I don’t know when the picture changed. In the morning, I packed up and prepared to take the bus to work. Before leaving, I took out my phone and opened the travel app to see where the bus was, and then decided whether to rush all the way to the bus stop or stroll there leisurely.

On the bus, the driver can see the situation inside the car and at the front and rear doors at any time through the small screen beside him, making it safer and more convenient to enter and exit the station; after arriving at the station, the voice announcement system automatically broadcasts according to the location information, reminding passengers to get off, which is accurate and convenient; there is an electronic bus stop sign on the platform, which shows at a glance where the vehicle is and how long it is expected to arrive at the station.

These intelligent products have changed our lives unconsciously and greatly facilitated our lives. So, how are these functions achieved? The following is a detailed introduction for everyone.

first,

The on-board part mainly includes three products: smart bus integrated machine, LCD in-vehicle guide sign, and cloud coin machine. They each perform their functions to meet the different needs of drivers and passengers.

1. In-vehicle intelligent system

Recommended products: Feiling embedded FETA40i-C core board Click to learn more

Reason for recommendation: The FETA40i-C core board supports multiple display and camera interfaces, with a maximum resolution of 1080P, a main frequency of up to 1.2GHz, and has 8-channel UART, 3-channel USB, SATA, Gigabit network port and other functions, which can be perfectly applied to various applications in smart bus systems.

Design of vehicle intelligent system solution topology based on Feilong embedded A40i core board:

△Solution topology diagram

1. Intelligent bus integrated machine (video monitoring, voice broadcast, GPS positioning)

Based on GPS data, it combines the actual route and specific stations to realize the intelligent bus equipment with the station announcement function. The all-in-one machine is equipped with an LCD display and external multi-channel cameras.

The driver can check the status of the car, including the front and rear doors, through the all-in-one device. The current station, line number, uplink and downlink are transmitted to the operation control center via the GPS data via the wireless network, and the current status of the vehicle can be viewed in real time. It integrates voice calling, station collection, TTS broadcast, monitoring screen display, time reporting, dispatch information interaction and other functions.

2. LCD in-car guide sign (same screen, different display, advertising machine)

LCD in-car guide signs completely replace the traditional carriage light-type route signs, and on this basis, based on the needs of bus operation and development, they can be adjusted according to the actual operation status of the vehicle.

It can adjust the routes remotely in the background, accurately and in real time express the real-time information of the current route name, the first and last departure time, the running direction, the current station, etc. of the vehicle, so as to meet the needs of flexible and fast cross-line dispatching of vehicles. It can play preset pictures and video information in a loop, and play carriage advertisements and various public welfare news.

The display screen can be flexibly divided into zones, and each zone supports the status and playback of pictures, videos, and route information. The displayed content is synchronized with the station announcement content of the in-vehicle station announcer. Compared with previous light-box route signs, the functionality has been greatly improved, and the user experience and functionality have been greatly improved.

3. Cloud coin machine

An intelligent anti-theft coin-operated machine that integrates online payment methods such as WeChat Pay and Alipay with a coin-operated machine can avoid embarrassing incidents of passengers forgetting to bring their cards or not having change, while also effectively reducing the financial losses of bus companies caused by counterfeit and damaged coins.

The machine can support QR code payment, real-time positioning, and transmit transaction information through 4G, with fast response speed. At the same time, it has a CPU electronic lock, which can count the daily unpacking information of the coin machine, and has abnormal information alarm and other functions.

Secondly, in addition to on-board smart products, the platform is also highly intelligent, the most important of which is the smart platform system.

2. Intelligent Station System

The intelligent station system is the result of multimedia technology and modern computer communication network technology. It uses mature network and video technology to play video content while publishing GPS vehicle information, display time, weather forecasts, government announcements and other content, changing the static single mode of outdoor activities and greatly facilitating people's travel.

Depending on the needs, you can choose hanging or vertical installation, and there are also a variety of screen sizes to choose from, ranging from 32 inches to 65 inches. This system solution recommends the Feiling FETA40i-C industrial-grade core board.

3. Features of Feiling embedded FETA40i-C core board:

Detailed parameters of Feiling A40i core board (FETA40i-C)

● Allwinner industrial-grade A40i quad-core Cortex-A7, with a maximum frequency of 1.2GHz;

●Integrated Mali400MP2 GPU, supports OpenGLES 2.0/OpenVG 1.1;

●Support dual screens with the same display but different displays and multiple display interfaces RGB/MIPI/dual 8LVDS/HDMI/TVOUT, 1920x1080@60fps;

●Support 1 Gigabit network, 1 100M network, and WiFi/BT4.0;

●Supports multiple camera inputs, two DVPs support up to 500W pixels, and four TVINs support NTSC and PAL video formats;

●CPU internally integrates AudioCodec, 1 differential PHONEOUT, 1 stereo headphone output, 1 microphone

● Rich external expansion interfaces: UART*8, SD*4, USB*3, SPI*4, IIC*5, SATA, PWM*8, etc.;

●Support Android7.1, Linux3.10+QT5.9 operating systems.