CN101702264A - Bus wireless stop announcing system and method - Google Patents
Bus wireless stop announcing system and method Download PDFInfo
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Abstract
The invention relates to a bus and a bus stop automated management system, in particular to bus wireless stop announcing system and method. The bus wireless stop announcing system comprises a management terminal, at least one bus stop terminal and at least one user terminal, wherein the management terminal is connected with all bus stop terminals by a wired or wireless network so as to transmit information in two directions; and the bus stop terminals are connected with the user terminals in a wireless way so as to transmit the information in the two directions. The stop announcing system can finish a voice and Chinese character display prompt of a name of a stop to be arrived, which is preannounced by a bus without artificial operation in the whole process; meanwhile, the bus stop finishes the prompt of the information of vehicles being about to arrive at the stop and the information of the positions in which all the vehicles are located on a line, thereby bringing convenience to passengers.
Description
Technical field
The present invention relates to bus and bus-stop automated management system, especially bus wireless reporting station system and reporting station method.
Background technology
Urban public tranlport system is the important symbol of urban civilization image, and along with development of science and technology, urban mass-transit system also is about to enter the new epoch.Traditional in the past public transport reporting station system is that the bus hand push button is called out the stops and artificial speech is called out the stops, because it is wasted time and energy, reports by mistake and misrepresent deliberately the rate height, there is traffic safety hidden danger especially, they will step down from the stage of history gradually, and under the New Times background new requirement has been proposed public transit system, public transit system robotization, intellectuality, how be the inexorable trend of its development with change, economization, efficient administrationization, managing visualization.Occurred some automatic station name announcing systems in recent years, they roughly are divided into: based on the public transport reporting station system of ZigBee technology; Public transport reporting station system based on the gsm communication platform; Public transport reporting station system based on the GPRS communications platform; The public transit system of calling out the stops based on Infrared Ray Remote Control Technology; Public transport reporting station system based on the GPS location technology.
Above system is exactly that technology is not fully up to expectations except all also being in experimental stage mostly, tracing it to its cause, and the use problem is more in actual environment.The automatic station spreading system of bus based on the GPS positioning system that for example comes into operation at present also has a lot of problems.From the GPS self problem, the first, GPS originally is a cover system of US military exploitation, be subject to U.S.'s control, and rights of using is limited; The second, it is disturbed easily that GPS lacks encryption mechanism, adds that the influence of environment and weather makes its stability not high; The 3rd, the GPS precision is low, and general commercial GPS precision is at 0.1Km; The 4th, GPS later stage usage charges have increased the cost input.Except above self limitation, the GPS positioning system is applied to bus stop reporting system also its limitation on principle.Based on the principle of work of the automatic station spreading system of bus of GPS must be in advance will be in the bus receiving trap with bus through the longitude and latitude data storage of gate position, in the bus running process, receiving trap constantly receives GPS longitude and latitude data, compare with the station data of having stored in real time, call the speech play that is stored in the car after conforming to.
Through above principle analysis, there is following problem in it based on the public transport reporting station system of GPS location: the restriction of GPS bearing accuracy, in actual use, if GPS is subjected to the influence of bridge, skyscraper, be easy to occur to receive data, will cause bus to be failed to report so; Bus is up, the platform of downgoing line distance is very short apart, in the precision 100m at GPS, uplink and downlink can not correctly be distinguished by system, and be special when vehicle enters the station fast, the distance that the vehicle per second moves adds error distance, and this problem is more outstanding.Website longitude and latitude data have been fixed in the bus storage, and this makes system flexibility seriously limited, if meet road reconstruction, and the bus routes change, the website longitude and latitude data of bus storage will get change again, strengthen public transport company's material resources and financial resources input; The voice of calling out the stops of system plays are to leave in order in the car, if occur failing to report at a certain website, cumulative effect will cause the whole piece circuit correctly to call out the stops; This type of public transit system portability is bad, can not use as touring car, and there is the wasting of resources in other users such as city sightseeing car; GPS only has functions such as positioning-speed-measuring, and it can not finish data communication, if the supervision information of vehicles must increase other as data transmission modules such as GSM or GPRS, this has just increased system cost on hardware design unintentionally, has limited its usable range.
Today of information age, wish that the bus management can be visual, administrative authority can understand on-the-spot situation fast and accurately when meeting dangerous situation and burst accident, and in the automatic station spreading system of bus of above introduction, practicality strong and on cost, exist advantage only based on the public transport reporting station system of ZigBee.But it is applied to public transit system self and also has certain limitation, reason is that ZigBee is the radio network technique of short distance, low rate, it takes advantage in the data transmission of zonule, but just can't satisfy technical requirement in the big zone as the city bus truck system.Working as a platform especially has under the situation of many car processes, system needs data quantity transmitted to heighten, the node data transmission of the system that will make goes wrong, and causes system stability and reliability to decline to a great extent, and this allows system be restricted on the processing power in actual environment.Also there is the problem of dirigibility, portable difference in same this system.
Summary of the invention
The purpose of this invention is to provide a kind of bus wireless reporting station system, the public traffic management network of robotization is set up in this system by wireless communication technology, make bus pass through voice and/or display mode automatic forecasting name of station, and in the positional information of pointing out each vehicle on information of vehicles on the horizon and/or the circuit on the public transport platform by voice and/or display mode, thereby make things convenient for the passenger to wait, also improved the work efficiency of whole public transit system, and the data that are stored on the public transport platform can be shared also by other vehicles such as private cars;
Another object of the present invention provides the reporting station method of the bus that uses in a kind of said system, can realize automatic bus stop announcing, and is not subjected to the influence of bus routes change.
For achieving the above object, the technical solution used in the present invention is:
A kind of bus wireless reporting station system, its special feature is, comprise an office terminal, at least one bus station's station terminal and at least one user terminal, thereby wherein connect two-way communication by wired or wireless mode between office terminal and all the bus station's station terminals, thereby and connect two-way communication by wireless mode between bus station's station terminal and the user terminal.
Wherein between office terminal and the bus station's station terminal by greater than the length of 1km apart from wireless mode communication, communicate by letter by short-distance wireless mode between bus station's station terminal and the user terminal less than 1km.
Wherein bus station's station terminal comprises central processing module, and this central processing module is connected with data memory module apart from wireless module with short-distance wireless module, length respectively, and this central processing module also is connected with showing output module or voice output module.
Wherein user terminal comprises central processing module, and this central processing module is connected with data memory module with the short-distance wireless module respectively, and this central processing module also is connected with the voice output module that shows output module or have a tone decoding function.
Further, wherein the central processing module of bus station's station terminal and user terminal is single-chip microcomputer, ARM microprocessor, DSP microprocessor or the MCU that has the full-duplex communication serial ports.
Further, wherein realize radio communication by the frequency hopping mode between bus station's station terminal and the user terminal.
Wherein the office terminal is made up of with the long distance wireless communication unit that is connected with this computing machine the computing machine that has office terminal software.
A kind of bus wireless reporting station method is characterized in that, comprises the steps:
(1), in all bus station's station terminals that at first will be connected with same office terminal each all gives unique platform numbering, and gives every circuit number that bus routes is unique, gives each user terminal unique bus numbering;
(2), the user terminal wireless module detects the next stop request signal scope that whether arrives;
(3), as arriving, then user terminal sends request signal to the next stop, waits for that being requested bus station's station terminal replys;
(4), bus station's station terminal receives the user terminal requests signal;
(5), the bus station station terminal detects user terminal frequency range channel status, generates the pseudo-random code of free channel, sends this pseudo-random code to the requesting users terminal;
(6), bus station's station terminal system will arrive communication channel according to this pseudo-random code and be adjusted to this frequency;
(7), user terminal is set this car channel frequency according to the pseudo-random code that receives;
(8), user terminal sends a last station bus station station terminal numbering and a bus numbering;
(9), user terminal sends this car status data;
(10), bus station's station terminal receives the data that user terminal sends;
(11), bus station's station terminal sends this terminal user data, the numbering of continuous three the bus station's station terminals in transmission back;
(12), user terminal receives and is requested the user data that bus station's station terminal sends, the numbering of continuous three the bus station's station terminals in back that reception bus station station terminal sends;
(13), user terminal reverts to common frequency band with channel;
(14), bus station's station terminal returns to common frequency band with wireless channel.
Wherein the communications band of wireless mode is divided into common frequency band, bus user frequency range, office terminal frequency range and other user's frequency ranges, wherein common frequency band is used for various paging terminals, replys, different terminal operating modes adopts communications band separately, each frequency range comprises a plurality of communication frequencys, data transmission between each terminal is used frequency range separately, does not all use common frequency band.
Originally the system of calling out the stops can finish voice and the man's prompts displayed that bus forecasts the name of station that will arrive at a station, this process need not any manual operation, simultaneously prompting be about to the to arrive at a station information of vehicle is finished in the bus-stop, and the information of each vehicle position on the circuit, for the passenger facilitates, make things convenient for the passenger to wait, provide good waiting environment in particular for friend blind person, because what sound prompt function can tell that the passenger that waits is about to arrive our station on the platform is which bus, and pass by what position the our station vehicle is in now and when next vehicle arrives.Can also show all kinds of real-time information on the bus-stop, thereby improve passenger's waiting environment.The invention allows for a kind of new reporting station method, relatively have very big dirigibility with the method that relied on permanent haulage line to call out the stops in the past.Native system even bus has changed circuit, does not need any setting of change system as long as what platform bus reaches and will quote name of station yet, just can allow bus call out the stops accurately.
Pass through the office terminal, can realize collection to bus real-time positioning and bus information data, the any information of vehicle can be inquired about, be shown in the office terminal, ensure the efficient operation fast of bus, the state of operation bus on the grasp circuit of real-time allows the public transportation system management realize visual, information-based, high efficiency.
The public transport platform can not only make the bus user enjoy station platform information, and other user terminals also can use the platform data information stored, and all data information stored can be changed under the management of office terminal.Other user terminals for example use relevant devices such as city sightseeing car, touring car, private car just can obtain relevant information from the public transport platform as bus, and it need not to call out the stops to the public transport platform certainly.
Description of drawings
Accompanying drawing 1 is the topological diagram of native system;
Accompanying drawing 2 is the theory diagram of public transport platform part in the native system;
Accompanying drawing 3 is the theory diagram of bus part in the native system;
Accompanying drawing 4 is a platform part radio-cell theory diagram in the native system;
Accompanying drawing 5 is a bus User Part communication flow diagram in the native system;
Accompanying drawing 6 is a platform part and bus communication flow diagram in the native system;
Accompanying drawing 7 is a bus system flowchart in the native system;
Accompanying drawing 8 is a platform systems process flow diagram in the native system;
Accompanying drawing 9 is an office terminal process flow diagram in the native system;
Accompanying drawing 10 is other user's process flow diagrams of native system;
Embodiment
Fig. 1 is this novel bus reporting station system abbreviated functional description synoptic diagram, as shown in Figure 1, this novel bus reporting station system embodiment one includes bus user terminal, other user terminals, bus-stop A, bus-stop B, bus-stop C, bus-stop N-1, bus-stop N, the public transport Metropolitan Area Network (MAN), the office terminal.The bus user is about to sail into platform A, when arriving short-distance wireless module operating distance, bus sends request signal, this moment, platform A communicated by letter with the bus foundation that sends request after receiving request signal, platform is noted used for buses user data and positional information simultaneously, the interior vocoded data of calling out the stops of platform flows and the Chinese character reveal codes is transferred to bus being stored in, after bus receives, play out a voice of calling out the stops, LED demonstrates and is about to the name of station that arrives at a station, and bus user terminal just finishes with bus-stop A is current.At this moment, platform will write down the used for buses amount that comes and reportedly be transferred to the office terminal, and the public transport user position information is transferred to contiguous several platforms.Contiguous several platforms, platform B, the positional information that platform C will receive the bus user shows with LED/LCD, reminds the car passenger that waits to note waiting.The office terminal receives the used for buses user data of platform transmission and preserves, and will demonstrate bus positional information and status information after the data parsing.Other user terminals both will arrive bus-stop N, other user terminals are the same with the bus user, send request signal after arriving wireless operating distance, this moment, platform A communicated by letter with the terminal foundation that sends request after receiving request signal, give the requesting terminal vocoded data flow transmission that is stored in the surrounding enviroment in the platform, after other user terminals receive, play out voice, allow the passenger understand surrounding enviroment, experience urban culture.
The described platform terminal of above technical scheme as shown in Figure 2, the platform terminal includes central processing module, radio-cell, data storage cell, function sub-modules unit, LED/LCD show output voice output module.Radio-cell is made up of a plurality of wireless modules, wherein is useful on the short-distance wireless module of telex network, and the length that is used for platform communication is apart from the high-power wireless module.The short-distance wireless module could be worked user terminal after arriving certain distance, operating distance can be about 500-800 rice, because the passing number of users difference of different platforms, passing user is more, the wireless operating distance of platform can prolong, and guarantees that the passenger has enough setup times to get off.Long far away apart from high-power wireless module operating distance, make contiguous several platforms can mutual communication, finish the download with management data of uploading of station platform information.Data storage cell is the database of bus stop reporting, and there is the public transport user data the inside, surrounding enviroment speech data and public bus network data.The public transport user data comprises the name of station of reminding the passenger to be about to arrive at a station, greeting and the commercial advertisement that the welcome passenger takes this car, these data all are through the audio data stream after the encoding compression, receiving end just can play out above voice by chip of speech decoder after receiving this type of information, also stores the kanji code data that corresponding voice LED shows simultaneously.The surrounding enviroment voice are introductions of this platform surrounding enviroment, content comprises financial place, recreation ground, culture, tourist attractions, hotel, commercial location and restaurant etc., the speech data of storage is the audio data stream after the brief introduction process encoding compression, and they can be used in above touring car and the city sightseeing car etc.This not only makes the passenger understand urban culture exactly, but also has promoted city image.The public bus network data comprise that these data can be upgraded by the office terminal through the circuit number of our station bus, circuit bag and each circuit platform numbering.Function sub-modules is an expansion of the multi-functional design of platform, and the expansion such as daily life information such as platform temperature, times makes the properer life of system, and it is more convenient to allow the passenger wait.The platform output has and shows output and voice output, shows that output can be LED, also can be LCD, and the information of vehicle is dynamically shown, and system can also show real-time important news, commercial advertisement, movie trailer etc.System all passes through the decoded voice output of chip of speech decoder to the information of the vehicle that is about to arrive at a station and the positional information of passing by the our station vehicle, uses the voice prompt passengers, and friend blind person just can select the vehicle that oneself will take according to voice suggestion.Platform terminal central processing module is the core of whole reporting station system, and it should also will analyze the request of each Terminal Type to Channel Detection, the saltus step of radio-cell, also will transmit up, descending data.According to the position traffic conditions of platform, can use single-chip microcomputer, ARM, DSP etc. as CPU, different control chips makes platform systems that maximum cost performance be arranged.System carries out the transmitting-receiving of data for good combining wireless unit, and the central processing unit serial communication uses the full-duplex communication mode, and processor has a plurality of serial ports, perhaps adopts the mode of many handsets combinations, perhaps uses the serial ports expansion chip.
Above-mentioned radio-cell as shown in Figure 4, it has common frequency band, bus user frequency range, other user's frequency ranges, the office terminal frequency range, frequency range can change by the frequency setting unit, and the different frequency in each frequency range also can change by the unit, can make the arbitrary band saltus step of system like this, the smoothness of safeguards system real-time Communication for Power at needs.The channel idle state detection unit, be to be used to detect whether a frequency has data transmission in the frequency range, to not have the frequency generation of data transmission to be random code for one section, and transport to central processing unit by the control oral instructions, the while is according to the frequency of communication channel in this section pseudo-random code saltus step frequency range.The UART interface of full duplex is connected with the central processing unit communication port, and it is used for data are received or send by Data Receiving/transmitting element.
The described user terminal of above technical scheme as shown in Figure 3, it has wireless transmit/receive units, serial ports receiving element, central processing unit, data temporary storage location, LED output unit, tone decoding unit and voice-output unit.Bus user terminal wireless Transmit-Receive Unit has common frequency band and bus user frequency range, and other user terminal wireless transmit/receive units have common frequency band and other user's frequency ranges.System processor adopts singlechip controller, and the communication mode real-time tranception data of full duplex are finished the forecast name of station prompting of bus.Bus user terminal is used bus user communication protocol, whether the continuous detection of bus system arrives the operating distance of wireless transmit/receive units, if arrived operating distance, bus will send request signal, reply Deng to the requested end, platform receives and uses platform and bus communication protocol behind the request signal, and the pseudo-random code of idle channel is sent to the request vehicle, the frequency of setting simultaneously oneself.This moment, bus was adjusted own communication frequency according to the pseudo-random code that receives, after adjustment finishes, bus sends the status information of this car, prepare receiving station's amoyese sound data then, receive the bus status information at platform, platform systems is called the public transport user data and is sent, and sending the communication frequency saltus step that just finishes platform is common frequency band.After bus receives the public transport user data of platform transmission, data storage to the data temporary storage location, is waited to receive bus temporary data are delivered to tone decoding unit and LED output unit, play and show.
Above-mentioned bus user communication protocol is followed following steps:
The first step: the bus wireless module detects the next stop request signal scope that whether arrives.
Second step: bus sends request signal to the next stop, waits for that being requested platform replys.Be not requested the platform answer if receive in a period of time, to start the re-send request may signal, repeatedly retransmitting the back does not still reply, system judges that being requested platform breaks down, will be not to being done forecast by this platform, system detects the request signal scope that whether arrives down next platform according to the platform numbering that a last platform sends.
The 3rd step: set this car channel frequency according to the pseudo-random code that receives.The bus user has whole frequencies of common frequency band and bus user frequency range.
The 4th step: bus sends a last station platform numbering and a bus numbering.This novel public transport reporting station system is provided with corresponding platform numbering to each platform of city, every bus routes has unique circuit number, each bus has unique bus numbering, can draw corresponding position information to these unique bus numberings and the parsing of platform numbering.
The 5th step: bus sends this car status data.Car status information comprises car number, the circuit number of vehicle ', and vehicle is through the platform numbering at a last station, vehicle temperature, data such as manned situation.
The 6th step: bus receives and is requested the used for buses user data that platform sends.Bus is buffered in the data temporary storage location earlier with the data that receive, and system assigned output again after Data Receiving finished by the time.
The 7th step: the numbering that receives continuous three platforms in back of platform transmission.Bus stores the platform numbering of three platforms all the time, and is more according to actual conditions or storage, and these three platforms are dynamically continuous.Do not influence bus other platforms are normally called out the stops under the situation that certain several platform is made mistakes so that prevent.As a public bus network A, B, C, D, five platforms of E are arranged, the bus first is left for E from A, the first car stores the platform numbering of B, C, three platforms of D when setting out at the A station, when his the B station of passing by will arrive before the C station, the storage of first car is numbered from the platform of C, D, three platforms of E.
The 8th step: bus reverts to common frequency band with channel.
Above-mentioned platform and bus communication protocol step:
The first step: receive the bus request signal, it is bus request signal or other user request signals that platform is at first analyzed after receiving request signal, or rub-out signal.
Second step: detect public transport user frequency range channel status, generate the pseudo-random code of free channel, send this pseudo-random code to the request vehicle.
The 3rd step: platform systems will arrive communication channel according to this pseudo-random code and be adjusted to this frequency.
The 4th step: receive bus and send data.Each platform has been stored circuit bag and the circuit number through all circuits of our station, and the circuit bag of every public bus network all is made up of through the platform numbering of platform this circuit.Platform receives the circuit number and the last platform numbering of taking out bus numbering, vehicle ' after the bus data, system searches the circuit bag of this car earlier in database by bus numbering and circuit number, use station numbering then platform numbering in the circuit bag is compared, find out the platform numbering of following three platforms that this vehicle will pass through.Platform adds the sign buffer memory and the data storage cell of car number and this platform numbering to temperature and manned packing data simultaneously.
The 5th step: send this platform used for buses user data, platform systems according to the analysis of request signal, is called the used for buses user data and is sent after receiving bus transmission data.
The 6th step: send request bus continuous three the station platforms numberings of will arriving at a station, after speech data sent and finishes, three platforms numberings that platform will find out sent bus to.
The 7th step: platform systems returns to common frequency band with wireless channel.
The 8th step: the outbound platform request signal, platform allows office terminal and contiguous several platforms prepare reception platform data finishing a solicited message processing back with regard to the outbound platform request signal.
The 9th step: detect leading subscriber frequency range state, generate idle frequency range pseudo-random code and send, adjust this station administration frequency range to this frequency.
The tenth step: send the bus packet that is about to arrive at a station, the packet that data cell is temporary sends, and allows office terminal and contiguous platform receive packet according to management agreement.
The 11 step: platform systems returns to common frequency band with wireless channel.
Above-mentioned management protocol step
The first step: receive the platform request signal, office terminal and contiguous platform receive the request signal of platform, and the expression platform has new data to transmit, and office terminal and contiguous platform are prepared to receive.
Second step: receive the platform pseudo-random code;
The 3rd step: adjust communication frequency to the leading subscriber frequency range;
The 4th step: receive the platform packet; Office terminal and contiguous platform receive packet, and the packet backup is resolved in the office terminal, show output in real time.Contiguous herein platform can be 3, also can increase contiguous platform received quantity according to actual conditions, and contiguous platform receives only package identification, platform parses package identification, by the voice and the Chinese character of platform output terminal output " certain car is at a certain platform ", remind the passenger to note waiting;
The 5th step: channel is returned to common frequency band;
Other user's vehicles that above technical scheme is described are about to in-track platform, vehicle constantly detects wireless operating distance, after arriving operating distance, vehicle sends request signal with other telex network agreements to platform, platform receives the request signal post analysis, and to go out this request signal be not the bus user, platform uses platform and other telex network agreements, start other user's frequency ranges, generate the pseudo-random code of idle frequency, adjust self frequency and set up communication channel, the surrounding enviroment speech data that is stored in the platform is sent, after other users are received the surrounding enviroment data, use the decoding chip decodes and plays.
Above-mentioned other telex network agreements are followed following steps
The first step: whether other user radio modules detect in-track platform request signal scope;
Second step: send request signal, wait is requested platform and replys, because the bustling degree difference of urban area, each platform periphery situation also has very big-difference, do not store the surrounding enviroment data at some remote platforms, when the user sent request signal to platform, this platform can not replied, the user surpasses the largest request number of times does not have also to reply to judge that then this platform does not have this function that the user then stops the request to this platform.
The 3rd step: set this car channel frequency according to the pseudo-random code that receives;
The 4th step: send this car status data;
The 5th step: receive and to be requested the surrounding enviroment speech data that platform sends, when other users receive data earlier with metadata cache in the data temporary storage location, the user is with temporary data decode broadcast when receiving after;
The 6th step: channel reverts to common frequency band.
Above-mentioned platform and other telex network agreements are followed following steps
The first step: receive other user request signals, if this platform is not stored the surrounding enviroment speech data then will not be replied this request signal;
Second step: detect other user's frequency range channel statuss, generate the pseudo-random code of free channel, send this pseudo-random code to the request user;
The 3rd step: platform systems will arrive communication channel according to this pseudo-random code and be adjusted to this frequency;
The 4th step: receive other users and send data;
The 5th step: send this platform surrounding enviroment speech data;
The 6th step: platform systems returns to common frequency band with wireless channel;
The office terminal is synthesis display, scheduling, the control center of system in the described technical scheme of Fig. 1, and all bus information of moving on the circuit can both show that in the office terminal status data of each car can be inquired about by the office terminal.Simultaneously platform can upgrade and replaces by the supervisory communications agreement platform storage and data presented, and wherein the data of office terminal downlink transfer have two kinds of transfer modes, the mode of two-way relay baton transmission and the transmission of unidirectional relay baton.As: the first and second the third is three platforms setting up according to certain rules in the continuous platform, second is nearest from the office terminal, two-way relay baton transfer mode is exactly that second is after receiving management packets, pass to first and third more respectively, first and third hands on separately successively then, and this transmission successively is to transmit in the continuous platform that certain rule is set up.As: in the first and second the third be three platforms setting up according to certain rules in the continuous platform, first is the platform of the initial of this rule or ending, and unidirectional relay baton transfer mode is exactly that first receives behind the packet of office terminal to the second transmission, after second receives, pass to the third again, successively recursion.Unidirectional or two-way transmission is based on a kind of mode that platform numbering certain rule changes, and this rule designs for administrative convenience, and this variation pattern can be the simple function relation that increases progressively, successively decreases, and also can be the relation of a circuit number.Data Update and conversion can be carried out to the circuit in a certain zone, city in the office terminal, make things convenient for the issue of data such as city advertisement.If the urban area is very big, the mode that terminal management can cascade is set a management of base station to the platform in certain zone, and the city management terminal is just managed these management of base station.By platform and management terminal communications agreement, new data more behind the platform receiving management packet is finished the renewal of this management information.
Platform and management terminal communications agreement are followed following steps
The first step: receiving management terminal request signal;
Second step: system channel is adjusted to the leading subscriber frequency range;
The 3rd step: receive more new data packets start context, platform receives the start context of packet, if upgrade, will abandon this packet, if do not upgrade, then will receive the packet of this version.
The 4th step: the packet that receives this version;
The 5th step: platform systems returns to common frequency band with radio communication.
Claims (9)
1. bus wireless reporting station system, it is characterized in that: comprise an office terminal, at least one bus station's station terminal and at least one user terminal, thereby wherein connect two-way communication by wired or wireless mode between office terminal and all the bus station's station terminals, thereby and connect two-way communication by wireless mode between bus station's station terminal and the user terminal.
2. bus wireless reporting station system as claimed in claim 1, it is characterized in that: wherein between office terminal and the bus station's station terminal by greater than the length of 1km apart from wireless mode communication, communicate by letter by short-distance wireless mode between bus station's station terminal and the user terminal less than 1km.
3. bus wireless reporting station system as claimed in claim 2, it is characterized in that: wherein bus station's station terminal comprises central processing module, this central processing module is connected with data memory module apart from wireless module with short-distance wireless module, length respectively, and this central processing module also is connected with showing output module or voice output module.
4. bus wireless reporting station system as claimed in claim 2, it is characterized in that: wherein user terminal comprises central processing module, this central processing module is connected with data memory module with the short-distance wireless module respectively, and this central processing module also is connected with the voice output module that shows output module or have a tone decoding function.
5. as claim 3 or 4 described bus wireless reporting station systems, it is characterized in that: wherein the central processing module of bus station's station terminal and user terminal is single-chip microcomputer, ARM microprocessor, DSP microprocessor or the MCU that has the full-duplex communication serial ports.
6. as any described bus wireless reporting station system in the claim 1 to 4, it is characterized in that: wherein realize radio communication by the frequency hopping mode between bus station's station terminal and the user terminal.
7. bus wireless reporting station system as claimed in claim 1 is characterized in that: wherein the office terminal is made up of with the long distance wireless communication unit that is connected with this computing machine the computing machine that has office terminal software.
8. a bus wireless reporting station method is characterized in that, comprises the steps:
(1), in all bus station's station terminals that at first will be connected with same office terminal each all gives unique platform numbering, and gives every circuit number that bus routes is unique, gives each user terminal unique bus numbering;
(2), the user terminal wireless module detects the next stop request signal scope that whether arrives;
(3), as arriving, then user terminal sends request signal to the next stop, waits for that being requested bus station's station terminal replys;
(4), bus station's station terminal receives the user terminal requests signal;
(5), the bus station station terminal detects user terminal frequency range channel status, generates the pseudo-random code of free channel, sends this pseudo-random code to the requesting users terminal;
(6), bus station's station terminal system will arrive communication channel according to this pseudo-random code and be adjusted to this frequency;
(7), user terminal is set this car channel frequency according to the pseudo-random code that receives;
(8), user terminal sends a last station bus station station terminal numbering and a bus numbering;
(9), user terminal sends this car status data;
(10), bus station's station terminal receives the data that user terminal sends;
(11), bus station's station terminal sends this terminal user data, the numbering of continuous three the bus station's station terminals in transmission back;
(12), user terminal receives and is requested the user data that bus station's station terminal sends, the numbering of continuous three the bus station's station terminals in back that reception bus station station terminal sends;
(13), user terminal reverts to common frequency band with channel;
(14), bus station's station terminal returns to common frequency band with wireless channel.
9. bus wireless reporting station method as claimed in claim 8 is characterized in that:
Wherein the communications band of wireless mode is divided into common frequency band, bus user frequency range, office terminal frequency range and other user's frequency ranges, wherein common frequency band is used for various paging terminals, replys, different terminal operating modes adopts communications band separately, each frequency range comprises a plurality of communication frequencys, data transmission between each terminal is used frequency range separately, does not all use common frequency band.
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| CN200910117530A CN101702264A (en) | 2009-10-26 | 2009-10-26 | Bus wireless stop announcing system and method |
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| CN102044166A (en) * | 2010-12-13 | 2011-05-04 | 蒋菊生 | Real-time public bus information informing system and information informing method |
| CN102147980A (en) * | 2010-12-08 | 2011-08-10 | 厦门雅迅网络股份有限公司 | Public bus automatic stop announcement system and method capable of realizing remote updating |
| CN103152480A (en) * | 2013-02-26 | 2013-06-12 | 广东欧珀移动通信有限公司 | Method and device for arrival prompt by mobile terminal |
| CN103810886A (en) * | 2014-02-20 | 2014-05-21 | 陈凌俊 | Intelligent bus stop announcement system under Internet of Things environment |
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| CN103810886A (en) * | 2014-02-20 | 2014-05-21 | 陈凌俊 | Intelligent bus stop announcement system under Internet of Things environment |
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| CN107798900A (en) * | 2017-11-10 | 2018-03-13 | 桂林电子科技大学 | A kind of voice-based intelligent bus reporting station system and system communicating method |
| CN109584601A (en) * | 2018-12-25 | 2019-04-05 | 张鸿青 | A kind of information output method and device based on bus station |
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