Intelligent Transportation Training Sand Table

Smart Transportation Teaching and Training Sand Table

Sand table introduction:

intelligent transportationThe teaching and practical training sand table isTaking urban road traffic and community commercial districts as prototypes, comprehensively utilizing wireless technologytransmissionInternetSingle chip microcontrollerRFIDRFID (Radio Frequency Identification)Sensors and controllers, AI artificial intelligenceelectricitymagnetic navigationdrive、Intelligent voiceCloud computing and other technologies, relying on sensors and controls deployed in real-world sand tables, wireless networksRFID、intelligentTraining SmallcarAnd intelligentGateway and other devices，implementSmart TransportationControl and management to help students become familiar withintelligent transportationDevelopment of system related projectsWith the application.

intelligent transportationsandboxThe model provides corresponding scenarios for each system, in which sensors and actuators with corresponding functions are arranged，Sensors collect information through ZigBeePerform transmission，andControl the corresponding actuator to react，Make wisdomcity、Autonomous drivingVehicle tracking, ETC control, urban environment monitoring, intelligencestreet lightThe integration of urban lighting control, traffic light indication, IoT applications, IoT training intelligent vehicles, intelligent gateways, IoT cloud servers, and other systems forms a complete systemIntelligent Transportation Model.

1. Smart car

The intelligent training car adopts STM32 high-performance processor and is equipped with four different motion kits, which can achieve infrared tracking, electromagnetic tracking, infrared obstacle avoidance, and remote control functions. It supports the connection method of magnetic building blocks and can be matched with different modules to achieve different training functions. The car also integratesProvide open source code and experimental routines for RFID modules, ZigBee communication modules, high-frequency cards, and license plate number cards.

2. Intelligent gateway and wireless transmission system

The intelligent gateway adopts a dual gateway of ZigBee and WiFi, and the underlying layer of the entire system uses ZigBee technology for wireless transmission. The ZigBee gateway is responsible for connecting to the local area network, while the WiFi gateway is responsible for transmitting the collected sensor information to the cloud platform for cloud display and control;

3. Public transportation voice broadcasting system

Using an intelligent voice broadcast module and a 125k low-frequency card reader, when a car with a built-in 125k card reader passes by and reads the low-frequency card pre-set next to the bus stop, the car recognizes the card data and transmits the bus stop announcement command to the voice broadcast module through the ZigBee network. At this time, the car stops and broadcasts the stop information. After the delay is over, the car starts automatically, simulating the bus stop announcement and automatic start stop.

4. Smart streetlight system

The smart street lamp system mainly consists of simulated street lamps, relay controllers, and low-frequency card readers. Each street lamp is connected to a relay. When the car is running, it recognizes the low-frequency card pre-set under the road and sends instructions to turn on and off the relay through the ZigBee wireless sensor network. The relay is linked to automatically open and close the street lamp, thus achieving smart street lamps. That is, the street lamp lights up on which road the car is walking, saving energy;

5. Urban lighting system

The urban lighting system consists of illuminance sensors, relay actuators, and LED lights built into buildings. When the ambient brightness decreases and reaches a preset critical value, the building lights will automatically turn on. After the brightness returns to normal, the building lights will automatically turn off;

6. Traffic signal light system

The traffic signal system consists of a traffic light module, an infrared reflection module, and a diffuse reflection module. Through the coordination and cooperation of sensors and traffic signals, it realizes automatic start stop of the car and pedestrian avoidance. When the car enters the traffic light intersection and triggers the sensor, the traffic light module sends the status of the signal light to the car through the ZigBee network. After receiving the information, the car performs corresponding operations.

7. ETC non-stop toll collection system

ETC non-stop toll collection systemComposed of a 915M high-frequency card reader and a servo actuator, when the car enters the ETC entrance, the 915M high-frequency card reader recognizes the preset high-frequency card of the car and transmits the command to open the barrier gate to the servo actuator through the ZigBee network. The servo actuator completes the automatic lifting of the pole, and automatically closes the barrier gate when the car passes by;

8. Urban environmental perception system

The urban environmental perception system consists of multiple environmental perception sensors, including air temperature and humidity, carbon dioxide concentration, light intensity, rain and snow, wind speed, etc. The sensors are networked with ZigBee wireless modules and the environmental sensor data is uploaded to the cloud through a WiFi gateway for cloud collection;

9. Urban resident security system

The urban security system consists of various alarm devices, including human infrared alarm, smoke alarm, flame alarm, infrared radiation alarm, etc. The alarm devices are equipped with ZigBee wireless modules for networking, and environmental sensor data is uploaded to the cloud through WiFi gateways to achieve cloud collection;

10. AI License Plate Recognition System

The AI license plate recognition system mainly adopts AI camera recognition technology, providing supporting camera modules and screen modules, which can recognize both license plates and objects. Through the recognition of car license plates, comparing database data, real-time display of collected license plate number information, and independent development of Python, different application functions can be achieved;

11. Vehicle positioning system

Under the sand table road, multiple low-frequency cards are pre-set, and the car runs on the sand table. The low-frequency card reader on the car reads each card, and the positioning of the car at different positions is achieved by the different IDs of each card. The entire system uses ZigBee network for data transmission, sending the car's position information to the upper computer software end to synchronize the software animation with the car's running trajectory. At the same time, the software also has the function of displaying the status of traffic lights and street lights;

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Training Program: