CN101430824A - Real-time dynamic information system on bus - Google Patents
Real-time dynamic information system on bus Download PDFInfo
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- CN101430824A CN101430824A CNA2008100723359A CN200810072335A CN101430824A CN 101430824 A CN101430824 A CN 101430824A CN A2008100723359 A CNA2008100723359 A CN A2008100723359A CN 200810072335 A CN200810072335 A CN 200810072335A CN 101430824 A CN101430824 A CN 101430824A
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Abstract
A real-time dynamic information system of a bus relates to communication architecture. The system uses the wireless and internet technology to realize communication between buses and stations, among the stations, and between the stations and a dispatching centre, and has low cost and high reliability and achieves integration of bus-stop automatic announcement, station forecast of arriving buses, dynamic display of bus driving positions and information collection of real-time dynamic positions. The system is provided with an on-vehicle system and a station system; the on-vehicle system is provided with an on-vehicle main control singlechip, an on-vehicle wireless transceiver module, an on-vehicle slave control chip, an on-vehicle voice prompt circuit, an on-vehicle display circuit and an on-vehicle uplink and downlink transfer switch; and the station system is provided with a station main control singlechip, a station wireless transceiver module, a station slave control chip, a station wireless transmission module, a station voice prompt circuit, a station display circuit and a station bus position display circuit.
Description
Technical field
The present invention relates to a kind of wireless and Internet technology and realize between bus and platform, platform and the communication system of platform and dispatching center, relate in particular to a kind of low cost, the highly reliable pre-reception centre of automatic bus stop announcing, platform vehicle, dynamically show that bus traveling-position and Real-time and Dynamic positional information thereof gather incorporate system.
Background technology
The quickening of urbanization makes limited communications and transportation crowded day by day, and traffic environment worsens.Bus has characteristics such as the road occupying area is few per capita, cost is low, carrying capacity is high, current circuit broad covered area, and it is all having positive effect aspect alleviation traffic jam, the energy-saving and emission-reduction.
Present most of bus system does not also have the automatic broadcasting function, except minority adopts expensive GPS positioning system.So research and develop a kind of low cost, the highly reliable pre-reception centre of automatic bus stop announcing, platform vehicle, dynamically show that bus traveling-position and Real-time and Dynamic positional information thereof gather incorporate system and have very important practical sense and marketable value.Publication number provides a kind of method and system of dynamically displaying current position of bus for the application for a patent for invention of CN1397918A, comprise a plurality of in the system along the public bus network setting, site information transmitter that can infrared transmission address code information, be arranged on and be used to receive and transmit the message pick-up transponder of described site information transmitter information and the time basic controller of the described message pick-up repeater operation of control on each bus, a plurality of fixed points distribute and can receive the message pick-up repeater station of described bus forwarding information, one is used for receiving and forwarding information receives repeater station and sends the information emission base station and be used to receive the base station on the bus stop and send the information electronic display with being arranged on, electronic display ceaselessly shows the bus site information of process in just travelling in the mode of dynamic demonstration, the person of waiting on platform can recognize the distance of arriving at a station of bus at any time, is convenient to people and makes correct selecting by bus.
Summary of the invention
The object of the present invention is to provide and a kind ofly realize automatic bus stop announcing, the pre-reception centre of platform vehicle, dynamically show that bus traveling-position and Real-time and Dynamic positional information thereof gather incorporate real-time dynamic information system on bus with lower cost, higher reliability.
Technical scheme of the present invention is to adopt wireless and Internet technology, and at a low price, the microchip control of high stability realizes a kind of low cost, the highly reliable pre-reception centre of automatic bus stop announcing, platform vehicle, dynamically shows that bus traveling-position and Real-time and Dynamic positional information thereof gather incorporate system.
The present invention is provided with onboard system and platform systems.
Onboard system is provided with vehicle-mounted main control singlechip, onboard wireless transceiver module, vehicle-mounted from control chip, vehicle-mounted voice cue circuit, vehicle-mounted display circuit and vehicle-mounted up-downgoing switch.The I/O port of vehicle-mounted main control singlechip is connected with vehicle-mounted up-downgoing switch from control chip, onboard wireless transceiver module with vehicle-mounted respectively, and vehicle-mounted output port from the control chip is connected with vehicle-mounted display circuit with the vehicle-mounted voice cue circuit respectively.
Platform systems is provided with the platform main control singlechip, the platform radio receiving transmitting module (communicate by letter with bus by platform, power is less), platform is from control chip, platform wireless transmitter module (platform is communicated by letter with platform, and power is bigger), platform voice warning circuit, platform display circuit and platform position of bus display circuit.The I/O port of platform main control singlechip is connected with platform position of bus display circuit from control chip, platform wireless transmitter module with platform radio receiving transmitting module, platform respectively, and platform is connected with the platform display circuit with the platform voice warning circuit respectively from the output port of control chip.
The line coding of storage bus in the vehicle-mounted main control singlechip, thus and can switch the purpose that the bus routes coding reaches the up-downgoing of distinguishing same circuit by vehicle-mounted up-downgoing switch.Be energy efficient, can utilize vehicle-mounted main control singlechip that a timing 100ms is set, launch the coded signal that is loaded with the particular course sign every the 100ms transmitter module through antenna, whether the cyclic query receiver module has the feedback information of the platform systems of receiving with the decision action of next stage before next 100ms arrives then.If during this period of time do not receive any feedback signal, then continue outwards to send coded signal; If vehicle-mounted communication subsystem has received the feedback information of platform systems before next 100ms arrives, then compare and judge whether information is correct.If feedback information is correct, vehicle-mounted communication subsystem will stop to send coded message 30s (this time for the bus of estimation from sailing in the platform effective range 100m, to rolling away from institute's time spent outside this effective range, can reduce the information processing capacity of platform systems like this.), and begin to forecast forthcoming station simultaneously and show corresponding station, return to original duty behind the 20s again; If the feedback information mistake, then vehicle-mounted communication subsystem will not handled this feedback information, continue the timed sending coded signal.
Platform wireless transmitter module and platform radio receiving transmitting module adopt single frequency, and this system mainly adopts code division multiplexing.After the start-up system, the platform wireless transmitter module is in masked state, and system is in the received encoded signal state, and whether the information of receiving is done next action by the inquiry receiver module.If receive coded signal, and verification is correct, if what receive is that (bus coded message, length are a byte to on-vehicle information.), then feed back an answer signal (answer signal be the coded signal that receives and the coded signal of this platform) and give vehicle-mounted communication subsystem, and the line coding that receives is carried out analytical calculation by single-chip microcomputer, obtain corresponding bus line number, from the bus route information storehouse of storage, read corresponding route information again and give platform, provide literal and voice suggestion from control chip controls LED display system and voice system by platform from the control chip; If what receive is station platform information (bus coded message and place station platform information thereof and this station platform information, three bytes.), then the coding that receives is carried out analytical calculation by single-chip microcomputer, destination address in the coding is changed into the address of next platform, and activation platform wireless transmitter module sends to next platform with coding, simultaneously original encoding is converted to coding with the platform position of bus display circuit of bus-stop coupling, light respective site, send the back shielding platform wireless transmitter module that finishes.More than the platform systems of terminus an internet terminal, be used for the coded message of platform mutual communication is passed to the dispatching center by the internet.
By the present invention, the passenger can obtain the pre-to reminding of next station on the car; By the present invention, the station passenger that waits for bus can know in advance through the dynamic position of these all vehicles of station and the vehicle that is about to arrive at a station; By the present invention, the Real-time and Dynamic positional information of all vehicles can be known by the dispatching center, thereby more effectively bus is effectively dispatched.
Description of drawings
Fig. 1 is the structure composition frame chart of the embodiment of the invention.
Fig. 2 forms schematic diagram for the onboard system circuit.
Fig. 3 forms schematic diagram for the platform systems circuit.
Fig. 4 is the U1-1 in the onboard system and other modular circuit theory of constitutions figure among Fig. 2.
Fig. 5 is that the circuit of the transceiver module in the onboard system and U1-1 among Fig. 2 is formed schematic diagram.
Fig. 6 is display circuit in the onboard system (U1-5) and voice warning circuit (U1-4) theory of constitution figure among Fig. 2.
Fig. 7 is platform systems main control chip (U1-1) program flow diagram.
Fig. 8 is that platform systems is from control chip (U1-3) voice and display control program process flow diagram.
Fig. 9 is the onboard system program flow diagram.
Information coding (byte) form that Figure 10 sends for onboard system.
Figure 11 sends to information coding (three bytes) form of platform systems for platform systems.
Figure 12 feeds back to information coding (two bytes) form of onboard system for platform systems.
Embodiment
Following examples will from hardware components and software section and the present invention is further illustrated in conjunction with the accompanying drawings.
At first to the forecast of bus of the present invention, platform with show that dynamically position of bus and Real-time and Dynamic positional information hardware of data acquisition modular design thereof are described:
Referring to Fig. 1, bus of the present invention, platform forecast and show that dynamically position of bus and Real-time and Dynamic positional information acquisition system thereof comprise onboard system and platform systems two parts.Onboard system is provided with vehicle-mounted main control singlechip U1-1 (AT89C51 type), onboard wireless transceiver module U1-2, vehicle-mounted from control chip U1-3 (8051 type), vehicle-mounted voice cue circuit U1-4, vehicle-mounted display circuit U1-5 and vehicle-mounted up-downgoing switch U1-6.The I/O port of vehicle-mounted main control singlechip is connected with vehicle-mounted up-downgoing switch U1-6 from control chip U1-3 (8051 type), onboard wireless transceiver module U1-2 with vehicle-mounted respectively, and vehicle-mounted output port from control chip U1-3 (8051 type) is connected with vehicle-mounted display circuit U1-5 with vehicle-mounted voice cue circuit U1-4 respectively.Platform systems is provided with platform main control singlechip U2-1 (AT89C51 type), platform radio receiving transmitting module U2-2 (communicate by letter with bus by platform, power is less), platform is from control chip U2-3) (8051 type), platform wireless transmitter module U2-4 (platform is communicated by letter with platform, and power is bigger), platform voice warning circuit U2-5, platform display circuit U2-6 and platform position of bus display circuit U2-7.The I/O port of platform main control singlechip U2-1 (AT89C51 type) is connected with platform position of bus display circuit U2-7 from control chip U2-3 (8051 type), platform wireless transmitter module U2-4 with platform radio receiving transmitting module U2-2, platform respectively, and platform is connected with platform display circuit U2-6 with platform voice warning circuit U2-5 respectively from the output port of control chip U2-3 (8051 type).
Referring to Fig. 2, onboard system is provided with vehicle-mounted main control singlechip U1-1 (AT89C51), onboard wireless transceiver module U1-2, vehicle-mounted from control chip U1-3 (8051 type), vehicle-mounted voice cue circuit U1-4, vehicle-mounted display circuit U1-5 and vehicle-mounted up-downgoing switch U1-6.The I/O port of vehicle-mounted main control singlechip is connected with vehicle-mounted up-downgoing switch U1-6 from control chip U1-3 (8051 type), onboard wireless transceiver module U1-2 with vehicle-mounted respectively, and vehicle-mounted output port from control chip U1-3 (8051 type) is connected with vehicle-mounted display circuit U1-5 with vehicle-mounted voice cue circuit U1-4 respectively.The line coding of bus has been got well in storage in the vehicle-mounted main control singlechip, thereby and can switch the purpose that the bus routes coding reaches the up-downgoing of distinguishing same circuit by vehicle-mounted up-downgoing switch.Be energy efficient, utilize main control singlechip that a timing 100ms is set, launch the coded signal that is loaded with the particular course sign every the 100ms transmitter module through antenna, whether the cyclic query receiver module has the feedback information of the platform systems of receiving with the decision action of next stage before next 100ms arrives then.If during this period of time do not receive any feedback signal, then continue outwards to send coded signal; If vehicle-mounted communication subsystem has received the feedback information of platform systems before next 100ms arrives, then compare and judge whether information is correct.If feedback information is correct, vehicle-mounted communication subsystem will stop to send coded message 30s (this time for the bus of estimation from sailing in the platform effective range 100m, to rolling away from institute's time spent outside this effective range, can reduce the information processing capacity of platform systems like this.), and begin to forecast forthcoming station simultaneously and show corresponding station, return to original duty behind the 20s again; If the feedback information mistake, then vehicle-mounted communication subsystem will not handled this feedback information, continue the timed sending coded signal.
Referring to Fig. 3, platform systems is provided with platform main control singlechip U2-1 (AT89C51 type), platform radio receiving transmitting module U2-2 (communicate by letter with bus by platform, power is less), platform from the control chip U2-3 (8051 type), platform wireless transmitter module U2-4 (platform is communicated by letter with platform, and power is bigger), platform voice warning circuit U2-5, platform display circuit U2-6 and platform position of bus display circuit U2-7.The I/O port of platform main control singlechip U2-1 (AT89C51 type) is connected with platform position of bus display circuit U2-7 from control chip U2-3 (8051 type), platform wireless transmitter module U2-4 with platform radio receiving transmitting module U2-2, platform respectively, and platform is connected with platform display circuit U2-6 with platform voice warning circuit U2-5 respectively from the output port of control chip U2-3 (8051 type).Platform wireless transmitter module and platform radio receiving transmitting module adopt single frequency, and this system mainly adopts code division multiplexing.After the start-up system, the platform wireless transmitter module is in masked state, and system is in the received encoded signal state, and whether the information of receiving is done next action by the inquiry receiver module.If receive coded signal, and verification is correct, if what receive is on-vehicle information (bus coded message, length is a byte), then feed back an answer signal (answer signal be the coded signal that receives and the coded signal of this platform) and give vehicle-mounted communication subsystem, and the line coding that receives is carried out analytical calculation by single-chip microcomputer, obtain corresponding bus line number, from the bus route information storehouse of storage, read corresponding route information again and give platform, provide literal and voice suggestion from control chip U2-3 control LED display system and voice system by platform from control chip U2-3; If what receive is station platform information (bus coded message and place station platform information thereof and this station platform information, three bytes.), then the coding that receives is carried out analytical calculation by platform main control singlechip U2-1, destination address in the coding is changed into the address of next platform, and the activation wireless transmitter module sends to next platform with coding, simultaneously original encoding is converted to coding with the position of bus display circuit of bus-stop coupling, light respective site, send the back shielding platform wireless transmitter module that finishes.More than the platform systems of terminus an internet terminal, be used for the coded message of platform mutual communication is passed to the dispatching center by the internet.
The onboard system hardware circuit is (the up-downgoing switch is a manual toggle switch, does not elaborate at this) partly.Mainly comprise: AT89C51 chip controls center module Mod_1, wireless data transceiver module Mod_2, and display circuit and voice warning circuit Mod_3 three parts are respectively described below:
Referring to Fig. 4, the Mod_1 module is used AT89C51 chip (U1-1), sets up basic input and output, realizes the serial communication function with the Mod_2 module.P1.0～P1.3 of U1-1 is connected with PSEL with CC1020 structural arrangements interface PDO, PDI, CLK respectively, sets the CC1020 working method; P2.0～P2.7 of U1-1 is connected with P1.0～P1.7 of U1-3, and parallel data is outputed to from control chip (U1-3); The P0.0 of U1-1, P0.1 are connected with DCLK, the DIO of U1-2, realize serial communication; The P0.2 of U1-1 connects switch S 1, is used for the bus up-downgoing and switches.
In embodiments of the present invention, AT89C51 single-chip microcomputer (U1-1) is operated in 8MHz clock frequency (this clock can be changed on demand), adopts external 8MHz crystal oscillator.Set a up-downgoing conversion keys that links to each other with the P0.2 pin of U1-1.
Referring to Fig. 5, Mod_2 uses CC1020 chip (U1-2), under the control of U1-1 in the Mod_1 module (AT89C51 type), realizes the transmitting-receiving of data.The PSEL of U1-2, PCLK, PDI, PDO are connected with P1.0～P1.3 of U1-1 respectively, set the working method of CC1020; The P0.0 of the DCLK of U1-2, DIO and U1-1, P0.1 are used to realize serial communication.
Because the AT89C51 (U1-1) that uses does not have 4 SPI functions, adopt software programming to realize in embodiments of the present invention with I/O mouth (P1.0～P1.3) simulation.
Referring to Fig. 6, the Mod_3 module is used from control chip 8051 (U1-3), connects LED dot matrix display screen and speech chip, realizes dynamically showing and voice suggestion.Whole module is divided into Single-chip Controlling part (U1-3), voice warning circuit (U1-4) and display circuit (U1-5) and forms.U1-3 adopts 8051, and reason is its storage space big (4K * 8), helps storage and shows type matrix; Next is the needs that the I/O mouth can satisfy demonstration and voice control signal.
(1) display circuit:
The embodiment of the invention adopts the LED dot matrix display mode that dynamically is shifted, and mainly is because dynamically displacement shows and can make the less display board of number of characters can show more content.Display driving part is made up of 28 8 * 8LED lattice modules, code translator 74HC4514, line driver, row dot array data shift register 74HC4094 (1)～74HC4094 (14), latch 74HC373,28 8 * 8LED lattice module ranks are connected to form the LED dot matrix of one 16 row 112 row, are used for showing simultaneously 7 16 * 16 dot matrix Chinese characters or 14 16 * 8 dot matrix ascii characters.
Whole display circuit is made up of 8051 Single-chip Controlling parts (U1-3) and LED dot matrix display board, 8051 single-chip microcomputers receive the demonstration number (as public transport license number specific coding) of main control singlechip by parallel port, 8051 carry out respective handling, receive and send demonstration sign indicating number (line data and a column data information) to the dot matrix display board, and the demonstration of control LED dot matrix display board.Display mode adopts progressive scan mode, 8051 single-chip microcomputers at first number extract first line data according to showing from the memory block, under the control of shift pulse delivery outlet line P3.5, the binary data of every bit outputs to data input pin D0～D3 of 4514 from 8051 single-chip microcomputer P2.1～P2.4, the data of 8051 single-chip microcomputer output terminal P2.0 also move into serial output terminal QS by turn simultaneously, and are outputed to down the data serial input end D of a slice 74HC4094 by QS.When some line data output is decoded into 16 after the row driving through 4514, send line scan signals to 4514 by 8051 single-chip microcomputer P2.1～P2.4 again, like this, the data of 4514 outputs are 16 line scan signals, and the data of 74HC4094 (1)～74HC4094 (14) output are the dot array data of some row.8051 single-chip microcomputers send data latch signal G1G2 by P3.1 then, sweep signal is latched into output terminal S0～S15 of 4514, the some row dot array data that shows is latched into the output terminal of 74HC373, thereby light the LED of delegation of display board, after time-delay a period of time, light next line more successively, promptly realize the demonstration of lining by line scan of display board.Carry out between the data shift period of output at 74HC4094, single-chip microcomputer P0.5 exports high level, makes 74HC4094 displacement output effectively.
If show that type matrix is more, can consider with outer expansion storage chip.
(2) voice warning circuit:
Embodiment of the invention phonological component is made up of 8051 Single-chip Controlling part (U1-3), IDS4003-08 speech chip, the driving of LM386 power amplifier and voice output loudspeaker.The AT89C51 single-chip microcomputer receives the demonstration number (as public transport license number specific coding) of main control singlechip by parallel port, 8051 carry out respective handling, send the voice output control signal to speech chip, and control voice signal (carrying out with display synchronization) is exported voice signal by loudspeaker from AOUT output after the LM386 power amplifier drives.
Wherein be noted that: serial ports works in mode 0 send mode, and RX (PC1) is used for the transmit operation order, and TX (PC0) is used for the serial ports clock.RAC whenever finishes recording, playback and the search operation of delegation for the row signal input part, positive pulse of this end output.In this example RAC is connected to 8051 timers, 0 external input terminals TMR0, the row address that the count value of RAC is corresponding current can be used for the accurate location to recorder information.The access that the LM386 power amplifier drives is the deficiency that remedies the inner power amplifier driving force of IDS4003-08 speech chip.Add that the driving of LM386 power amplifier can be to drive the loudspeaker of 0.5W.
It is similar to onboard system that platform systems hardware is realized owing to have and the communicating by letter of platform, more than the platform of non-terminus a wireless transmitter module (U2-4) and position of bus display circuit (U2-7).The terminus platform is communicated by letter with the dispatching center in addition, and many individual computer terminals are used for sending all bus multidate informations of this station to dispatching center from this computer terminal by the internet on platform basis, non-terminus.In embodiments of the present invention, can adopt identical frequency in order to make wireless transmitter module with radio receiving transmitting module, transmitter module also adopts CC1020.Position of bus display circuit (U2-7) is mainly by gating chip 74LS154 with latch chip 74HC373 and realize.
Next is to bus of the present invention, platform forecast and show that dynamically the software design of position of bus and Real-time and Dynamic positional information acquisition system thereof is described:
The software section design realizes that according to structurized pattern mainly can be divided into 2 parts: the Seg_1 module is the bus-stop system, and the Seg_2 module is the bus onboard system.
Bus of the present invention, platform forecast and show that dynamically the platform systems in position of bus and the Real-time and Dynamic positional information acquisition system thereof mainly is made up of two single-chip microcomputers of principal and subordinate, host scm (U2-1) is used to control transceiver module and the sending module of realizing communicating by letter between platform, is used to control display circuit (U2-6) and voice warning circuit (U2-5) from single-chip microcomputer (U2-3).
Referring to Fig. 7 and Fig. 8, system enters init state after platform systems starts, and comprises the initialization of single-chip microcomputer and transceiver module etc., and at this moment the transceiver module of platform systems is in accepting state, waits for Receiving coded information.In case this system receives coded message, at first this coded message is carried out odd-even check by single-chip microcomputer, judge whether the information that receives is effective.Under the effective prerequisite of information, judge the type of received coded message by the byte number of coded message:, as shown in figure 10, then be the information of arriving at a station that bus sends over if coded message has only a byte; If coded message length is three bytes, as shown in figure 11, then be the positional information of a certain bus that sends over of a last platform.
When receiving the information of arriving at a station of bus, at first send two byte feedback signals to bus by transceiver module, as Figure 12, by the bus route coded message in the inquiry contrast storage unit, determine the route number that is received then.This route number is given from single-chip microcomputer, by calling out the stops from Single-chip Controlling LED display system and speech prompting system.
When receiving the bus positional information of platform transmission, whether the point of destination coding that is positioned at first byte in the information that at first relatively receives is the coding of this platform.If difference then give up this information is returned accepting state; Then demonstrate the current location of this car when identical, then the point of destination coding that is positioned at first byte in the information that receives is replaced with the coding of the next stop, control sending module at last this information is sent to next platform by station board.
Referring to Fig. 9, bus of the present invention, platform forecast and show that dynamically the onboard system workflow in position of bus and the Real-time and Dynamic positional information acquisition system thereof is as follows: at first enter init state after onboard system starts, comprise the initialization of single-chip microcomputer and transceiver module, also comprise the setting of up-downgoing switch simultaneously.To the differentiation of vehicle up-downgoing, we can link to each other with the I/O mouth of main control singlechip by the switch of setting an outside, by detecting pin level, judge the up-downgoing of vehicle, and write in the coded message.Then set a timing 100ms by single-chip microcomputer, every 100ms sends a bus route coded message.Enter the reception duty at the transceiver module that sends coded message relief system, to receive the feedback information of platform.Bus just has an opportunity to receive the feedback information of platform only in entering effective range of receiving of platform the time.The feedback information that sends for platform in native system compares judgement, and is errorless if coded message is judged, then this system enters of short duration dormant state and stops to send coded message 30s, can reduce the workload of platform systems process information; Otherwise coded message is made mistakes and is then continued to send coded message up to receiving correct feedback information.
Claims (1)
1. real-time dynamic information system on bus is characterized in that being provided with onboard system and platform systems;
Onboard system is provided with vehicle-mounted main control singlechip, onboard wireless transceiver module, vehicle-mounted from control chip, vehicle-mounted voice cue circuit, vehicle-mounted display circuit and vehicle-mounted up-downgoing switch; The I/O port of vehicle-mounted main control singlechip is connected with vehicle-mounted up-downgoing switch from control chip, onboard wireless transceiver module with vehicle-mounted respectively, and vehicle-mounted output port from the control chip is connected with vehicle-mounted display circuit with the vehicle-mounted voice cue circuit respectively;
Platform systems is provided with platform main control singlechip, platform radio receiving transmitting module, platform from control chip, platform wireless transmitter module, platform voice warning circuit, platform display circuit and platform position of bus display circuit; The I/O port of platform main control singlechip is connected with platform position of bus display circuit from control chip, platform wireless transmitter module with platform radio receiving transmitting module, platform respectively, and platform is connected with the platform display circuit with the platform voice warning circuit respectively from the output port of control chip.
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| CNA2008100723359A CN101430824A (en) | 2008-12-10 | 2008-12-10 | Real-time dynamic information system on bus |
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| CNA2008100723359A CN101430824A (en) | 2008-12-10 | 2008-12-10 | Real-time dynamic information system on bus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866555A (en) * | 2010-06-21 | 2010-10-20 | 詹重咏 | Intelligent bus arriving prompt system |
| CN102034364A (en) * | 2010-12-27 | 2011-04-27 | 李布尔 | Early warning system for arrival of bus |
| CN103280119A (en) * | 2013-05-27 | 2013-09-04 | 苏州洁祥电子有限公司 | Automatic bus station reporting system |
| CN103646564A (en) * | 2013-11-13 | 2014-03-19 | 成都捷康特科技有限公司 | Bus automatic station reporting apparatus based on single-chip microcomputer |
| CN103810886A (en) * | 2014-02-20 | 2014-05-21 | 陈凌俊 | Intelligent bus stop announcement system under Internet of Things environment |
| CN103927869A (en) * | 2014-05-04 | 2014-07-16 | 中国科学院遥感与数字地球研究所 | Public transportation information processing method and device |
| CN105321368A (en) * | 2015-09-17 | 2016-02-10 | 太仓苏易信息科技有限公司 | Bus prompting system |
| CN109191827A (en) * | 2018-09-29 | 2019-01-11 | 大连锐进科技发展有限公司 | A kind of intelligent public transportation system based on technology of Internet of things |
| CN109509366A (en) * | 2018-12-28 | 2019-03-22 | 肇庆学院 | A kind of intelligent public transportation system based on Internet of Things |
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2008
- 2008-12-10 CN CNA2008100723359A patent/CN101430824A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866555A (en) * | 2010-06-21 | 2010-10-20 | 詹重咏 | Intelligent bus arriving prompt system |
| CN102034364A (en) * | 2010-12-27 | 2011-04-27 | 李布尔 | Early warning system for arrival of bus |
| CN102034364B (en) * | 2010-12-27 | 2012-06-06 | 李布尔 | Early warning system for arrival of bus |
| CN103280119A (en) * | 2013-05-27 | 2013-09-04 | 苏州洁祥电子有限公司 | Automatic bus station reporting system |
| CN103646564A (en) * | 2013-11-13 | 2014-03-19 | 成都捷康特科技有限公司 | Bus automatic station reporting apparatus based on single-chip microcomputer |
| CN103810886A (en) * | 2014-02-20 | 2014-05-21 | 陈凌俊 | Intelligent bus stop announcement system under Internet of Things environment |
| CN103927869A (en) * | 2014-05-04 | 2014-07-16 | 中国科学院遥感与数字地球研究所 | Public transportation information processing method and device |
| CN105321368A (en) * | 2015-09-17 | 2016-02-10 | 太仓苏易信息科技有限公司 | Bus prompting system |
| CN109191827A (en) * | 2018-09-29 | 2019-01-11 | 大连锐进科技发展有限公司 | A kind of intelligent public transportation system based on technology of Internet of things |
| CN109509366A (en) * | 2018-12-28 | 2019-03-22 | 肇庆学院 | A kind of intelligent public transportation system based on Internet of Things |
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Application publication date: 20090513 |