Intelligent public transport information interaction and display system

[0033] See figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 Shown:

[0034] The intelligent public transportation information interaction and display system of the present invention includes a vehicle-mounted device 1, a site device 2 and a central server 3. The vehicle-mounted device 1 can realize vehicle positioning and congestion judgment and combine vehicle location information and congestion information Send to the central server 3, and at the same time receive the dispatching information sent by the central server 3. The central server 3 can realize the screening, distribution and transmission of vehicle location information and congestion and realize the dispatch of buses, and the site equipment 2 receives the dispatching information from the central server 3. Vehicle information (including location information and congestion information), and realize the display of location and congestion, at the same time, judge the congestion of passengers waiting at the station and send the congestion information of the station to the central server 3 as reference data for scheduling.

[0035] The vehicle-mounted device 1 is composed of a positioning module 11, a counting module 12, a display module 13, a communication module 14, a single-chip computer 15, and a step-down module 16. The positioning module 11 and the counting module 12 are connected to the first serial port of the single-chip computer 15 through a serial port expansion circuit. The communication module 14 is connected to the second serial port of the single-chip computer 15, and the display module 13 is connected to the parallel data interface of the single-chip computer 15. The positioning module 11 is composed of the G595 module, the STC12C5A60S2 single-chip microcomputer, GPS antenna and peripheral circuits; the G595 module is based on the ninth-generation JRC single-chip The GPS module of the chip SH319 scheme can perform positioning work; the counting module 12 is composed of two pedal pressure blankets placed on the upper door and the lower door and a calculation module; the communication module 14 is composed of a SIM900A module, a GSM antenna and peripheral circuits; SIM900A The module is a dual-frequency GSM/GPRS module, which can send the vehicle position information from the single-chip 15 to the central server 3; the single-chip 15 is a dual-serial STC12C5A60S2 single-chip, the first serial port is responsible for receiving the position information and counting of the positioning module 11 through the serial port expansion circuit The number of passengers counted by the module 12, the second serial port is connected to the communication module 14, and is used to transmit the vehicle position information and congestion information processed by the microcontroller 15 to the communication module 14 and control the communication module 14. Parallel data interface and display module 13 is connected, the step-down module 16 can convert the 24V power supply in the car into the 5v power supply required by the on-board equipment 1.

[0036] Station equipment 2 is composed of communication module 20, station sign equipment 21, station equipment 22, single chip microcomputer 23 and step-down module 24. Communication module 20 is composed of SIM900A module, GSM antenna and peripheral circuits. SIM900A module receives the vehicle sent by central server 3. Information, including location information and congestion information, and the number of passengers waiting for each line of the bus at the site is sent to the central server 3; the first serial port on the microcontroller 23 is connected to the communication module 20 to control the communication module 20, receive and Send all kinds of data, the second serial port sends the vehicle position information to the stop sign device 21 through the serial port expansion circuit, and the second serial port receives the crowding degree information of the waiting passengers on each line sent by the station device 22 through the serial port expansion circuit, the stop sign device 21 It includes an LED control circuit 30 and a printed map 31. The LED control circuit 30 includes a main control chip, STC89C52 single-chip microcomputer, registers, and decoders, and adopts dynamic scanning control; in the printed map 31, the bus line stops and adjacent stops A 5mm hole and four 3mm holes side by side are drilled in the middle position to install LED lamp beads to indicate the bus route and vehicle congestion of the designated route; in the entire route marked with LED lamp beads, 5mm red and green The blue three-color LED lamp beads are installed in the station lights in the printed map 31, the 5mm yellow single flashing LED lamp beads are installed in the road section lights between the two stations, and the 3mm red LED lights are installed in the crowded lights in the 3mm hole. In the station lights, the red light indicates that the station has been passed, the green light indicates that the station will be reached, and the blue light indicates that the bus is at the station. In the section lights, a yellow flashing light indicates that the bus is in this section ; Of the four congestion lights side by side, one light is on to indicate that the car’s congestion is level one, two lights are level two, three lights are level three, and four lights are level four; platform equipment 22 consists of industrial cameras 40 , The processor 41 and the queuing facility 42, where the industrial camera 40 is connected to the processor 41, and the step-down module 24 can convert the 220V city power of the bus station into the 5V DC power required by the station equipment 2.

[0037] The central server 3 is provided with a fixed IP address. The communication module 14 and the communication module 20 in the system are all connected to the central server 3 through this IP. The central server 3 runs a data screening and distribution program, and the communication module 14 in the vehicle equipment 1 The sent vehicle information is distributed according to the vehicle ID and vehicle location, and the vehicle information related to the specific platform is sent to the specific platform. The congestion degree of waiting passengers sent by the communication module 20 in the station equipment 2 is allocated and displayed, reminding Dispatcher.

[0038] In the entire communication process, the vehicle position information reflected by the communication module 14 and the communication module 20 is expressed in the form of the following vehicle position information protocol, and the specific protocol is as follows:

[0039] $ , <1> , <2> , <3>

[0040] $The start bit of vehicle position information; when the communication module 14 receives this bit, it indicates the start of the information;

[0041] Bus vehicle ID;

[0042] <1> The location category of the bus, format A; 0 means bus stop; 1 means road section, such as: if the bus is between two stops, then A is 1;

[0043] <2> The code of the bus stop or section, in AA format, for example, if the bus is at the ** stop, AA is 01;

[0044] <3> The congestion degree of the bus is represented by 1, 2, 3, 4, 1 means that the real-time passenger number of the bus is 0%-25% of the rated number, 2 is 25%-50%, 3 is 50%-75%, 4 It is 75%-100%.

[0045] The working principle of the present invention:

[0046] First, the positioning module 11 in the vehicle-mounted device 1 sends position information in the format of the NMEA-0183 protocol to the single-chip computer 15 every second. The single-chip 15 receives the data through the serial port expansion circuit connected to the first serial port and uses its own program for the data. Perform analysis; by comparing the route information pre-stored in the memory, the location information is converted into data in the format of the vehicle location information protocol proposed by the present invention. At the same time, the counting module 12 sends the congestion degree to the single-chip microcomputer 15 through the serial port expansion circuit connected to the first serial port. The principle of the counting module 12 is: when the upper door pedal pressure blanket feels pressure, it is considered that a passenger gets on the bus, and the calculation module adds one; when the lower door pedal pressure blanket feels pressure, it is considered that a passenger gets off the bus, the calculation module minus one. The calculation module then divides the number of passengers obtained in real time by the rated number of passengers and ranks them to obtain the degree of congestion. The single-chip microcomputer 15 organizes the data of the positioning module 11 and the counting module 12, fusion and integration into data in the format of the vehicle information protocol, and then the single-chip 15 transmits the data to the communication module 14 in the vehicle equipment 1 through the second serial port, and The communication module 14 is controlled and the data is sent to the central server 3 via GPRS. The communication module 20 in the site equipment 2 communicates with the central server 3 at all times. When the central server 3 receives the data sent by the in-vehicle equipment 1, it first performs screening and judgment and then immediately sends it to the communication module 20 in the site equipment 2. The communication module 20 then transmits the data to the single chip microcomputer 23, which analyzes the data formatted in the vehicle information protocol proposed by the present invention and sends the analyzed data to the single chip microcomputer in the LED control circuit 30 of the stop sign device 21. The single-chip microcomputer controls the LED control circuit 30 according to this data. At the same time, the platform equipment 22 realizes the judgment of the degree of congestion of waiting passengers. The working principle is: the queuing facility allows passengers to line up separately according to the bus line, which not only helps the waiting passengers develop the habit of queuing, but also helps the industrial camera 40 to identify. An industrial camera 40 is installed at the rear of the queuing facility 42 to capture the queuing status. The processor 41 analyzes the grayscale characteristics of a specific area in the image collected by the industrial camera 40 to determine the degree of congestion of waiting passengers on each line. When the degree of congestion exceeds a certain value, the processor 41 sends a signal to the single-chip 23, and the single-chip 23 controls the communication module 20 to send a signal to the central server 3 to remind the dispatcher to increase the number of running trains on the designated line.